wind power installation

专利摘要:
WIND POWER INSTALLATION AND METHOD FOR ADJUSTING THE ROTOR ROTATION AXIS. The present invention relates to a wind energy installation (1) equipped with a rotor (4) which has two, or possibly more, rotor blades (5) and which is rotatably mounted to rotate around an axis of rotor rotation (2), the rotor is connected with a generator for the production of electrical energy and, together, the rotor and the generator constitute a part of a turbine (T) that is hosted by a turbine support ( 3, 40), and the turbine support being arranged so as to be rotatable in a support structure (7), the turbine being mounted in a displaceable way by means of a bearing device inside the turbine support, so that the spatial position of the turbine (T) within the turbine holder can be changed, and a region of oscillation of the turbine (T) comprises, in relation to a joint region of the rotor axis of rotation, a first and a second region angular in relation to a reference plane, covering the region of total articulation pe it minus 120 °. The present invention is (...).
公开号:BR112013000402B1
申请号:R112013000402-9
申请日:2011-07-07
公开日:2021-03-16
发明作者:Frank Richert；Sebastian Pflaum
申请人:Skywind Gmbh；
IPC主号:

专利说明:

Wind energy installations of the most diverse conceptions have been known for a long time. As an example, we indicate the state of the art, as it is known among others also by the documents US 6,979,175, EP 2 014 912, DE 199 16 454 A1, DE27 53 956 B1, WO 82/0466, WO 2008/148874 A1 , DE 102 05 988 B4, US 2001/0038207 A1, EP 1 101 936 B1, EP 1 101 934 B1, WO 96/10130. We also refer to Erich Hau, Winkraftanlagen, 1995 (ISBN 3-540-57430-1).
In wind power installations known until now, as a rule, an engine room, which houses the rotor with rotor blades and generator and / or occasional and similar gears, is firmly anchored to the top of a tower of the wind power installation and is preferably mounted on an azimuth bearing, to allow the adjustment of the rotor, and consequently the engine room in any direction, so that the wind can ideally affect the rotor of the wind energy installation. For adjusting the engine room, drives are then provided to adjust the azimuth, which drive the rotor, and consequently the engine room to a desired position, thus producing a continuous adaptation to the wind direction.
If the incidence of the wind now becomes more intense, the total load on the rotor-generator-machine room unit may become so large that the installation reaches an overload state, which may ultimately lead to damage to the installation, but at least it can also lead to overloading individual components of the wind power installation.
In the case of wind power installations which are currently in operation and which exceed a specified nominal power, such as more than 500 kW, for example, and thus are no longer characterized as wind power plants with low or medium wind, the rotor of the wind power installation is arranged in front of the tower of the wind power installation, observing consistently the wind direction and the rotor in this case consists of at least one rotor blade, preferably two or three rotor blades. In this case, the rotor rotates around an essentially horizontal axis, which can also be tilted a few degrees in relation to the tower.
During the operation of the wind energy installation, it may occur that as the wind speed increases, not only does the pressure on the rotor blades increase, but the distance between the rotor blade and the tower also decreases when the blade passes close to the tower as the wind speed increases.
To reliably avoid a collision of a rotor blade with the turret when the rotor blade passes close to the tower, for this reason, in almost all wind power installations, therefore in wind power installations with a higher rated power at 300 or 500 kW, the rotor axis is adjusted to a determined rotor axis angle unchanged, such as in the range of 4 ° to 8 °, preferably from 5 ° to 7 ° in relation to the tower of the wind power installation . With the inclination of the rotor shaft, the rotor surface inclined to the wind is reduced, reducing the wind energy that can be captured by the rotor, in the range of wind speeds that are between 0 and 10 m / s.
The position of the center of gravity of the rotor blades means that in the event of an inclination of the rotor shaft, the load variability of the connection between the rotor blades and the drive unit occurs. The traction unit is formed by the rotor, and the generator coupled with the rotor, which are preferably connected to each other by means of a gear.
As, with the increase in height above the ground, the wind speed also increases, the rotor blades suffer in a typical 12 o'clock position a greater force due to the higher wind speeds there than in a typical 6 o'clock position . The different wind speeds that are overcome by the rotor or the rotor blades, eventually also lead to variable loads on the drive.
WO 2009/056701 A2 shows a wind energy installation equipped with two rotor blades that can be disassembled by lowering the rotor together with the rotor blades through cable lifts conducted inside the tower of the house. machines at the top of the tower, in which the installation of wind energy is foreseen, with the rotor blades during lowering positioned and fixed through the cable or similar and the rotor being removed from the tower at a distance from the tower along two cables of guide, and the pulling forces that during disassembly affect the tower or the engine room radially are absorbed by three cables and conducted to the ground, tensioning the tower laterally and stabilizing it. The rotor blades can be deposited on the ground on profiled struts specially designed for respective blades.
It is known from US 2009/0087311 A1 a process of hoisting a gondola from a wind energy installation by means of an external mechanism from the bottom upwards to the operating position, and for the hoisting of the gondola, the mechanism is arranged at the base of the tower of the wind energy installation and is built in telescoping. During the lift, the gondola is driven along the tower.
In the case of maintenance, repair or dismantling of a wind energy installation, there is a need to take the wind energy installation to the ground, or because maintenance cannot be conducted, for example, with the use of a helicopter only, or due to the fact that a repair or exchange of certain components is not feasible without a complete disassembly. One difficulty is to provide the crane usually required to dismantle the rotor or a complete traction unit. In this case, due to limited availability, there may be a prolonged shutdown of the wind energy installation and a loss of income.
Rotor systems with three or more rotor blades can, for example, be lifted and lowered with a tower crane or other support structure, but in the case of rotors that are getting bigger and bigger and with gondolas more and more. heavier as well as support structures (towers) that are increasingly taller, increasingly heavier and larger cranes with greater lift capacity and higher lifting heights are required. This procedure entails high costs and a long time, and the handling of the gondolas on these cranes and the cranes themselves is heavy and not without risks.
FR 2 916 785 A1 shows a disassembly device for a wind energy installation that can be disassembled, providing, in the region of the base of the tower, on which the wind energy installation is mounted, a hinge around the which most of the tower together with the gondola or the wind power installation and the rotor blades can be articulated and lowered to the ground, with the high gravity forces that then occur and the bending moments that affect the tower can be captured by the fact that two levers are provided that are executed having a length in the range of half the height of the tower and through which the cables that connect with the top of the tower are conducted, and these levers can be operated from the base of the tower through cable lifts.
In general, during a maintenance or repair service or even during a dismantling of the wind energy installation, it is necessary to lower the components arranged in the region of the top of the tower of the wind energy installation to the floor around the tower. In addition to the costs, the availability of suitable cranes for this purpose also poses a problem. In the case of damage to wind power installations, for example, the time required to obtain the appropriate crane is added to the standstill period. During these periods the wind energy installation cannot be used, so there is a shutdown.
The present invention, therefore, has the objective of configuring a wind energy installation of the type mentioned in the preamble, allowing the lowering and lifting of components of the wind energy installation to the region of the top of the tower in a simple and easy way. a minimum expenditure of time. The present invention also has the objective of configuring the wind energy installation in such a way that the components of the wind energy installation can be moved and arranged in its tower in any desirable way and in different positions.
These objectives are achieved according to the present invention through a wind power installation with the resources proposed in claim 1.
The wind power installation according to the present invention comprises a rotor which has two or possibly more rotor blades, and which is mounted to rotate around an axis of rotation of the rotor, the rotor being connected with a generator to produce energy electric and the rotor and the generator together form a part of a turbine that is hosted by a turbine support, the turbine support being arranged to rotate in a support structure, the turbine being assembled in order to move by means of a bearing device in the turbine support, so that the spatial position of the turbine can be changed, and a region of inclination of the turbine in relation to a region of inclination of the rotor axis of rotation comprises a first angular region and a second angular region in relation to a reference plane, the region having a total inclination of at least 120 °.
It is ensured by the arrangement according to the present invention that the wind power installation can be rotated or tilted from an angle in the range of 0 to at least 120 degrees (the entire angular region), and this in such a way that this can be optimally moved and space-saving along a support structure such as the tower of the wind power installation, and on the other hand it can be independently ensured that the connections of the rotor blades in a wind power installation can be optimally aligned with a rotor blade to be mounted in certain situations respectively.
With the characteristics of the present invention given above, for example, in addition to an inclination of the rotor axis that is conventionally employed for the operation and that varies approximately from 4 ° to 10 ° (within a first angular region) in relation to the horizontal ( reference plane H) other angles of inclination or orientation can also be obtained according to a second angular region that allow or facilitate an assembly, therefore, for example, also inclined positions in the vertical inclination region of the rotor axis. In this case, the individual rotor blades can also be easily assembled and disassembled, possibly with inclined soils, and the position or orientation of the respective rotor blade is adjusted in relation to the ground, especially for this purpose. The rotor can be previously fully mounted on the ground with simple means.
In addition, the wind energy installation can be tilted or rotated in such a way with regard to the assembly / disassembly of other components, that it is easier to insert, for example, a (replacement) gear. For this purpose, the installation of wind energy as a whole (or without components that have already been disassembled because of the insertion of the gear), can be lowered with the correct angular direction of the rotor shaft, through a (replacement) gear. already prepared at an assembly location in an assembly position, and the (replacement) gear can then be coupled directly to the wind power installation. No lifting or crane alignment is required. In the present description the term assembly / disassembly is considered to be synonymous with the term maintenance and / or repair, since in all these cases the same measures or similar measures are taken.
In addition, wind power installations with rotors equipped with a multiplicity of blades can be allowed to be lifted or lowered close to the support structure, not requiring much space. The space required in this case is also small as, during the construction of a wind energy installation, the rotor blades can be fixed to the rotor on the floor in a mounting position immediately in the vicinity of the support structure (tower), and can then in this orientation, be driven vertically up close to the turret, and only needing to be tilted when it is at a height where during the tilt of the blades it cannot collide with the adjacent components. In this case, the possibility of rotating the rotor in relation to the high axis of the support structure around the support structure is also not excluded. Vertical displacement and rotation, in this solution according to the present invention, can be possible with the same device without the need for other auxiliary means. A displacement of the components of the wind energy installation is independent of the rotation (oscillation or inclination), for example, of the turbine.
Other improvements of the present invention are described in the secondary claims.
In the installation of wind energy, the bearing device comprises a rotating bearing and the turbine can be pivotally mounted by means of the rotating bearing around an axis of rotation. The bearing device for the turbine articulation (T) may also have a mechanical device, which may comprise, for example, an arrangement of four connections.
The turbine support can comprise an actuator to make the turbine articulate within a first angular region during the operation of the wind power installation. The turbine support and the turbine may comprise an articulation device for making the turbine articulate around the second angular region, when the wind power installation is out of operation. The turbine support can have another bearing device on which the turbine can be mounted so as to temporarily rotate during articulation within the articulation region according to the second angular region.
The additional bearing device can be designed to have a temporary coupling with at least one connecting arm disposed in the turbine during rotation, the coupling between the turbine and the additional bearing device being able to be undone after the rotation process is finished by means of of the articulation device.
The articulation device may have a hoist, to keep the turbine in motion during the articulation process and to undo the engagement after the articulation process is finished. The articulation device is also designed to lower the turbine, through the hoist, to the articulated position.
The turbine support may have a displacement device for moving the turbine support along the support structure between an upper position at an upper end of the support structure and a lower position at the base of the support structure. The turbine support may comprise a holding device for supporting and securing the turbine support in any desired position along the support structure. The rotating bearing can be arranged close to the center of gravity. In addition, the articulation device can have first inversion cylinders in the turbine and the first inversion cylinders can be arranged in the turbine in the vicinity of its cent of gravity.
Regarding a process to operate a wind power installation with a rotor that has two or possibly more rotor blades and that is mounted to rotate around a rotor rotation axis, the rotor being connected to a generator for production of electrical energy and forming the rotor and generator a part of a turbine that is hosted by a turbine support and the turbine support being rotatably mounted on a support structure, the present invention proposes means by which it is driven, depending of an initial wind speed captured during the operation of the wind energy installation, an actuator connected to the turbine, this actuator being designed to adjust the inclination of the rotor axis within a first angular region in relation to a reference plane.
Alternatively, the process comprises, for the operation of a wind energy installation, means for causing, depending on the wind speed captured, a displacement device to be activated to bring the turbine support down from a first position to another position. lower and to stop the turbine support in this next position by means of a detention device (this is not the second position).
In addition, the process comprises, for the operation of a wind energy installation, the measures by which, during a rotor shutdown, by activating a displacement device, the turbine is articulated in relation to a predetermined angular region, in such a way that the rotor axis of rotation is approximately perpendicular to a reference plane, and that the turbine, by another actuation of the articulation device, is lowered from any desired position along the support structure to the lowest position at the base of the support structure. support and is deposited on the floor surface.
The present invention fundamentally allows the operation of a wind energy installation during which the traction unit, consequently the rotor and the generator, depending on the respective wind speed, is adjusted to a desired height above ground level. The invention, moreover, assumes that with an increase in height above ground level the wind speed also increases and on the contrary, with a reduction in height above ground level the wind speed is reduced, and thus The wind energy installation also has the ability to avoid overloading the wind energy installation, making the traction unit to be adjusted to a desired height, so that a high performance or a great use of wind energy is still possible , and it is not necessary to shut down the installation for fear of an overload.
In this case the adjustment of the traction unit, consequently the height adjustment above ground level, can also be carried out during the operation of the wind energy installation, which means that either the height is adjusted during operation (therefore during production or the height is adjusted during a brief interruption of operation, so that afterwards, after reaching the desired height above ground level, the installation can be switched on again.
The present invention will now be described in detail through exemplary modalities in connection with the corresponding figures. In them: Figure 1 shows a partial section view of a wind power installation according to a first exemplary embodiment of the invention in which a wind power plant turbine can be articulated around an axis of rotation in relation to a plane horizontal; Figure 2 is a diagram of connection blocks for the visualization of a regulation structure for the regulation of a wind energy installation according to Figure 1; Figure 3 is a perspective sectional view of a wind power installation according to the first exemplary modality with details of a possible arrangement of gears and generator and of a rotation point or with a rotation axis of an energy installation wind power according to Figure 1; Figure 4 shows a schematic and simplified side view of a bearing structure to support the turbine that can be provided in a wind energy installation according to the exemplary modality mentioned above; Figure 5 shows a schematic representation in perspective for the visualization of the wind energy installation according to another exemplary embodiment, in which the turbine is rotated in relation to a turbine support and is lowered together with the turbine support; Figure 6 shows a simplified schematic representation of a turbine and a turbine support arranged in a wind power installation tower with the possibility of turning the turbine; Figure 7 shows a simplified illustration of a turbine arrangement on the turbine holder with the possibility of rotating the turbine (according to the second angular region); Figure 8 is another simplified illustration of a turbine arrangement on the turbine support with the possibility of turning the turbine; Figure 9 is another simplified illustration of a turbine arrangement on the turbine holder with the possibility of turning the turbine; Figure 10 is a simplified schematic illustration of a turbine and a turbine support arranged in a tower of the wind power installation with the possibility to move the turbine support as well as to rotate and lower the turbine; Figure 11 is a perspective illustration of a configuration of the turbine and its arrangement in the turbine support, with the possibility of rotating the turbine in connection with hoists; Figure 12 (with Figures 12A to 12D) shows several illustrations of the turbine lifting process and its arrangement on the turbine support based on the configuration of the turbine and the turbine support according to Figure 11; and Figure 13 shows another simplified illustration of a turbine arrangement on the turbine support for viewing a modular construction of the wind power installation. Description of preferred modalities
The installation of a wind energy installation will be described with reference to Figures 1 to 3.
The wind power installation shown in Figure 1 can be regularly rotated around three axes of rotation. One is the rotor axis of rotation 2, around which a rotor 4 rotates with the rotor blades 5 generally rotatable. This is also the middle axis of the rotor 4. In addition, a turbine support 3 can rotate in relation to the middle axis AA 6 of a support structure in the form of a tower 7, to orient the turbine support 3 and with it the rotor 4 with rotor blades 5 optimally with the wind (azimuth adjustment). Finally, each rotor blade 5 can be rotated by adjusting the tilt (tilt adjustment) around the longitudinal axis itself and thus adjusting the air forces produced on the rotor blades to a desired value.
This modality of construction of wind energy installations had thus far a defined angle of the rotor axis in relation to the axis of the top of the tower A-A or even in relation to the horizontal. The set shown in Figure 1 therefore comprises yet another axis of rotation or axis of inclination 8, that is to say an axis of rotation that extends essentially perpendicular to the axis of rotation of the rotor, and which determines an adjustment of an angle α, which is formed by the axis of rotation of the rotor 2 with an imaginary horizontal. The angle α is referred to with reference to the operating conditions of the rotor axis angle (or inclination angle or tilt angle) and has in wind energy installations hitherto existing approximately 5 ° to 7 ° and is determined constructively in wind energy installations known and fine-tuned. On the other hand, an additional tilt or rotation can occur around the axis of rotation 8 in the region of greater angles, such as in the region of 0 to 100 degrees, such as for the disassembly or the assembly of some components of the energy installation. wind power. The present invention is not limited to the exemplary angle given, and depending on the need, larger angles can be adjusted.
On the one hand, the rotor 4 as a whole can be rotated downwards in the Figures, around the axis 8 both with respect to its angle of rotation α (small angle, first angular region) or with respect to a considerably larger angle ( second angular region). In this case, the axis of rotation 8 for a rotation angle in the region of the largest angle can coincide with the axis of rotation for the small angle of 4 ° to 8 ° (Figure 1), for example. The first angular region and the second angular region are contiguous and the total angular region resulting from the two can in this case reach at least 120 ° or even more than 120 °.
A fine adjustment of the operating tilt angle can then take place around this axis. However, it may happen that the tilt axis and the rotation axis do not coincide. For each of the articulation movements (small angle in operation, large angle for assembly or disassembly), a suitable drive or actuator can be provided for it, however an actuator can also be provided that can adjust the two articulation movements independently of the whether the two axes are coaxial (therefore, coincident) or not. The same axis serving both small and large tilt angles can have the advantage that fine adjustment of the tilt angle can easily be produced even for assembly purposes, such as in the case of very tilt movement. slow, and this can be done with a single actuator or with two special actuators optimized for the respective tilt movement.
In order to carry out the corresponding adjustment, a drive 9 can be provided, which rests against the turbine support 3 and exerts a force on the drive unit 10, for example, perpendicular to the axis of rotation of the rotor. The drive unit 10 of the wind power installation 1 comprises the rotor 4 and a generator for converting the rotational energy into electrical energy, and eventually a gear, by means of which the rotor and the generator are connected together. The set of elements formed by the rotor 4 with the rotor blades 5, the gear and the generator, and also with a rotor hub will also be referred to below as Turbine T.
For the rotation / articulation of Turbine T around the axis of rotation 8, a rotating bearing 11 is provided, which allows the movement of the T turbine around the axis of rotation. The rotation movement in this case is controlled by means of drive 9, preferably by means of many drives of the same or different types, and a hydraulic cylinder can be used as a drive and / or alternatively, other drive possibilities can also be envisaged, such as , for example, electric motors or other mobile rotary or linear actuators. The turbine T can be adjusted around the axis of rotation 8 to adjust an angle α of the axis of rotation of the rotor 2 (which corresponds to the axis of rotation of the turbine).
With the rotation of rotor 4 around an axis of rotation, in order to adjust a desired angle in relation to an essentially horizontal reference plane H (also called tilt angle) or for assembly or disassembly, the T turbine can now , regardless of the actual wind speed being set at a different angle α, and rotor 4 or even the entire turbine T can be assembled or disassembled and maintained in a simple and space-saving way, for example. For this purpose, the wind speed can be measured or captured at different height in tower 7 by appropriate devices. In this case during operation, for example, it is advantageous that first from the moment a nominal wind speed is reached or another predetermined wind speed that affects the wind power installation, that the angle of inclination α (angle inclination, articulation angle) assume the known value of wind power installations of the prior art from 5 ° to 7 °, but that in the region of the lower wind speeds the inclination angle is smaller, such as, for example, is close zero degree, in order to keep the rotor blade surface effectively swept and consequently keep the efficiency level of the wind energy installation at an optimum level.
The regulation according to the present invention of the inclination of the rotor axis, depending on the wind speed, is verified by means of a regulation circuit. In this case the inclination of the rotor axis of the wind power installation, depending, for example, on the temporary wind speed VWind, for example, is adjusted in such a way that the desired angle or the inclination of the rotor axis α (from the first angular region) increases with increasing wind speed. With lower wind speeds, 2-4 m / s, for example, the horizontal orientation and consequently the inclination of the rotor axis α = 0.
The wind speed VWind according to the present invention is converted into a mathematical function for α = f (Vwind) in a specification for a rotor shaft inclination α to be adjusted, and is driven to a suitable regulator in the form of a nominal value, then adjust this regulator via drive 9 (actuator) to the desired rotor shaft inclination of the rotor or T turbine.
In addition, (or alternatively) dynamic adjustment of the rotor shaft inclination during operation can be carried out. At each rotation of the rotor, due to the different forces on the rotor blades, produced, for example, by different wind speeds as a function of height and during the passage of the blades in the tower's shadow, a different load is exerted, so that periodic pendular motion takes place. According to the invention, it is now possible to produce a dynamic force, possibly periodically, by means of a corresponding activation of the drive to adjust the inclination angle α of the rotor or T turbine, this dynamic force acting against this pendulum movement and other unstable forces. of the rotor. Corresponding elements of damping could also be provided.
For this purpose, the forces inside or on the rotor blades are measured reference points and subtracted from each other. A dynamic change in the adjusted rotor axis inclination is calculated using a mathematical function Δαdyn = f (ΔF), and this change is extracted from a specified value of the rotor axis inclination. For an optimal calculation of Δαdyn, the actual PosBlatt position can also be obtained by approximation.
A regulation structure (regulation circuit) is shown in Figure 2. In it VWind = wind speed, α = angle of inclination, FBlatt1 = force on the first blade, FBlatt2 = force on the second blade, PosBlatt = gem (Measured blade position), αdyn = dynamic tilt angle and α is the actual adjusted tilt angle calculated from the first angular region. By means of a “regulator and actuator” block, shown in Figure 2, as well as another block indicated with “regulation segment”, from the αsoll and Δαdyn values, the regulation segment in the form of drive 9 is influenced (Figure 1).
Figure 3 shows a cross section taken by the wind power installation. It comprises the rotor blade 5, which is part of the rotor 4. The rotor 4 has a rotor hub 35, which accommodates gear 13 (to the extent that it is necessary), receiving the gear, on the input side, the forces from the rotor 4 and transferring them from the output side to the rotating part of the generator 14. The generator 14 is preferably an asynchronous generator with a cage motor or a synchronous generator that yields the electrical energy produced with an output voltage quite high, such as 10 kV, for example. The gear is preferably provided with dry lubrication. The set described above is called, as already said, also as a T turbine.
In Figure 3, further details of gear 13 are illustrated: it can be seen that an elastomeric coupling 15 is provided, which is preferably designed in such a way that the introduction of axial forces into rotor 4 or as far as possible is avoided or minimized. the deformations of the rotor hub 12 in the gear housing 15. The gear housing can be supported, as shown, also only through the elastomeric coupling 15, or it can be supported by a bearing (not shown) against a non-planetary bearing rotating.
Figure 4 shows schematically and in a simplified way the construction of the wind energy installation 1 with characteristics that can be carried out independently of the characteristics described above.
The purpose of the set according to Figure 4 is to provide for a functional separation between a classic wind energy installation 1 (consisting of a turbine, control, etc.) and its tower 7 (support structure) and the need for a support of the wind energy installation 1 at a determined distance above the ground, and in this way a suitable structure in the form of a support structure is employed. The support structure corresponds to the support 3 according to Figure 1, since the turbine of the wind energy installation is supported by the bearing structure, being possible a predetermined rotation within the angle α (in this case the total angular region , which can be greater than 120 °).
The purpose of the support structure is to adjust the dynamic part of a wind power installation 1, therefore the rotor 4, the generator, possibly the gears, the control and the secondary systems intended for them, such as, for example, brakes, actuators for adjusting the blades (activating the angle of inclination of the blades) etc. and thus adjust the turbine T as a whole to a desired level and consequently to a predetermined height above ground level. The support structure or turbine support 3 then rests against the tower 7 of the wind power installation 11, being able to then rotate the rotor 4, the generator, possibly the gears, the control etc. around a vertical axis, consequently around the axis of the A-A 6 tower (azimuth adjustment).
In the case of the need for a repair, the wind energy installation as a whole can be moved downwards, through the turbine support 3, along the tower 7 until the ground level, and it is also possible to make, in the event of a major storm, the T turbine, with or without the turbine support 3, is driven from its upper position (a generally upper operating position) further down to an intermediate position, thus allowing the operation of the wind power installation 1 even with a very strong wind (during a storm the wind speed in the vicinity of the ground is lower than at a higher height above ground level). This is described in more detail below by means of other figures.
As shown in Figure 4, in the case of the turbine support 3, a displacement device 18 can be provided, by means of which the turbine T and the turbine support 3 can be moved to a desired height above ground level. When the desired position is reached in the longitudinal extension of the tower 7, the turbine support 3 together with the T turbine can be anchored by means of a detent device 19. The detent device 19 in this case can be part of the turbine support 3 or also be designed as being separate from it. During wind rotation (change of wind direction), the turbine support 3 to T turbine of the wind power installation can be rotated by means of the displacement device 18 given above or by another device around the vertical axis.
The displacement device 18, for raising and lowering the T turbine of the wind energy installation 1, can be formed by a cable system or by rail systems. It is also possible to foresee that the displacement device has one or more drive motors that are equipped with a pinion, which introduces its force in an opposite toothed wheel, which is arranged in the tower of the wind energy installation.
The detent device 19 can consist of bolts, clamps or the like, so that the turbine support 3 can be detained at different predetermined heights in the tower 7. Essentially, the detention device 19 can detain the turbine support 3 at any desired point or position along tower 7.
Figure 5 illustrates, by means of a simplified and schematic representation, the possibility of driving the T turbines together with the turbine support 3 along the tower 7 of the wind energy installation 1 downwards, optionally to the ground level in the proximity to the base of the tower 7. Therefore, Figure 5 shows the elements described below of the wind power installation 1 in the operating position at the top of the tower 7 and in the lowered position. The operating position at the top end of the tower 7 is also called the first position P1 and the lowered position at the base of the tower 7 is called the second position P2. Possible intermediate positions between these maximum and minimum heights are called the third position P3. The arrangement at the top of Figure 1, for example, is, therefore, in the first position P1.
In Figure 5 it is shown schematically how a lowering as well as a hinge of the turbine of a wind power installation 1 can be conducted, and the rotor blades 5 of the rotor 4 of the wind power installation 1 can remain mounted on the hub of rotor 35 of rotor 4, even during articulation (rotation) of the T turbine. In case a technical maintenance service is required, for example, generator 14 (Figure 3) of the wind power installation 1 (the generator can be arranged in the turbine support 3 forming part of the turbine T), the turbine T can be hinged and lowered without any major time expenditure, and the maintenance service of the generator can be carried out simply on the ground, without having to disassemble other components. In this case, a lowering and then an articulation of the turbine T rotor 4 is carried out from an essentially vertical plane to an essentially horizontal plane, or else an articulation and then lowering is carried out, depending on the movement in question, such as , for example, depending on the geometric shape of the rotor blades, the total weight, the influences of the environment, such as, for example, the intensity of the wind or other influences. Essentially it can be advantageous if you drive the joint only to lower heights with lower wind speeds, since then there is a greater likelihood of a smaller number of unexpected forces (due, for example, to aerodynamic forces that transfer to the blades of rotor during articulation) act on the device as a whole than at great heights, in the region of the top of the tower. In this case, the forces acting laterally on the tower 7 can also be reduced.
In addition to the possible articulation of the T turbine according to the illustration in Figure 1 of some degrees of angle (first angular region) to tilt the rotor axis 2 of the rotor in relation to wind conditions, there is now the possibility of articulating the turbine T of the wind power installation 1 within a large angle (second angular region, approximately 0 ° to 10 °) in the opposite direction in the region of 0 ° to above 90 ° or 110 °. For this purpose, the support structure shown in Figure 5 is provided, comprising the turbine support 3 which is in connection with the tower 7 (joint by fitting). The rotating bearing 11 allows a articulation of the T turbine rotatably mounted not only in accordance with Figure 1 (first angular region), but also in accordance with Figure 5 (second angular region), so that, after the end of the articulation process, the axis of rotation of the rotor 2 is approximately parallel to the axis of the tower AA 6 and a plane of rotation of the rotor blades 5 is arranged approximately parallel to the ground (to the imaginary horizontal as reference plane H). The simplified illustration in Figure 5 shows only the basic principle of the articulation of the T turbine and the lowering of the unit as a whole, which consists, for example, of the T turbine and the turbine support 3. Figure 5 therefore shows the support of turbine 3 in each of the first and second positions P1 and P2.
Figure 5 shows in detail the support structure of the wind power installation 1 in the form of the tower 7, for example, which is arranged on a substrate 100, such as the ground, for example, being anchored there. In tower 7, a wind energy installation 1 is provided, which in this case is illustrated in an upper (operating) position P1 and a lower position P2 at ground level 100. The turbine rotor 4 T, having, for example, three blades of rotor 5, it is articulated in the inferior position in an essentially horizontal plane, being able to be positioned, in a place of assembly 100a in the immediate proximity of the tower 7 without needing much space. In the upper (operating) position, the rotor 4 is arranged in a plane at least approximately vertical, the rotor axis 2 being in a position at least approximately horizontal. At the mounting location 100, the rotor 4 can be so arranged that the tower 7 is at an angular segment between two (of three or more) rotor blades 5. A displacement along the tower 7 can also take place, for example, with this orientation of the rotor blades 5. In the case that the tower 7 is not oriented exactly orthogonally at ground level 100 and, therefore, an approximately right angle is not formed between the longitudinal axis of the tower AA 6 and the ground level 100, such as, for example, due to soil irregularities or the like, each of the rotor blades 5 can also be disassembled in the vicinity of the complete lowering point before reaching the final position shown in Figure 5, for be able to deposit the rotor 4, having only two of the three rotor blades mounted, for example, and then through the angle of inclination α just before the final position is reached, the relevant rotor blade arranged for this purpose in the correct orientation in rel ground action 100.
It may happen that in this way the rotor axis 2 during operation can be articulated by a few degrees (such as 3 to 10 degrees, for example) in relation to the horizontal (positive rotation angle α), to adjust an operating behavior and good energy efficiency of the wind power installation 1 depending on external influences such as, for example, the intensity of the wind. These small angles of rotation α of the first angular region can be called positive angles of rotation. If the turbine T is rotated or articulated around the axis of rotation 8 downwards (in Figure 5), then larger α angles of the second angular region are produced, which being relative to the horizontal (reference plane) H can also be called as negative angles α. That way
the direction of articulation or rotation around the axis of rotation 8 above and below the horizontal can be described. The rotating bearing (bearing device) 11 can in this case be arranged against the turbine support 3 and can also be connected with it with resistance to rotation and can support the turbine support 3 around an inclination or rotation axis, which corresponds to to the axis of rotation 8. The rotary bearing 11 represents a bearing device arranged coaxially to the axis of rotation 8.
A movement of articulation of the turbine T in the rotation bearing 11 for the assembly or disassembly or for maintenance services can be achieved in this case, for example, by providing an actuator (not shown), which is arranged, for example, between the rear side of the turbine support 3, which during operation faces the tower 7 and which can act on the turbine support 3. The actuator can be executed in the form of a hydraulic cylinder, for example, and can rotate (articulate) the T turbine in an active and directed way, either from a small positive α rotation angle or from a large negative α rotation angle for disassembly or assembly.
The actuator can optionally also be arranged between one of the arms (or two arms) of the turbine support 3 in the exemplary representation according to Figure 5, in the vicinity of the rotating bearing 11, and be essentially supported only on the turbine support arm 3 and introduce a torsional moment in the turbine support 3 or in the rotating bearing 11. This arrangement can also allow a very compact actuator, since, regardless of the size of the angle of inclination, that is, of the measure of articulation or rotation, the actuator need not essentially change its position or its point of application of the force. The actuator can, for example, engage with a sprocket (not shown) arranged on the turbine support 3, the sprocket being designed in the form of a circle segment, for example.
In addition, it can be seen in Figure 5 that a support of the T turbine of the wind power installation 1 is so possible that the rotating bearing 111 or the axis of rotation 8 is arranged at least approximately at the center of gravity of the T turbine. or that the axis of rotation 8 is slightly out of the center of gravity with respect to the configuration. In this way, the forces required to make the T turbine rotate in relation to the turbine support 3 could be reduced. It follows that the illustration in Figure 5 shows the possibilities of the rotation (inclination) of the turbine in relation to the turbine support 3 as well as the displacement of the turbine support 3 along the extension of the tower 7 of the wind power installation 1, so that an operating position (third position P3) can be adjusted on the one hand to an intermediate height that is less than the height of the operating position at the top end of the tower 7 (first position P1) and on the other hand the turbine T and the turbine support 3 can be brought fully down to the proximity of the ground level 100 for assembly, disassembly or for maintenance services. maintenance and repair (second position P2). In this case, the rotor hub can be placed on the ground 100 or in a corresponding device to prevent damage.
For the rotation or articulation of the turbine T in relation to the turbine support 3, the rotor 4 is brought to such a position that the tower 7 is in a gap between two of the multiplicity of rotor blades 5, the rotor 4 being fixed in this position.
Figure 6 shows another exemplary arrangement of the wind power installation 1 with a T turbine and a turbine support.
Figure 6 illustrates the wind power installation set 1 in a simplified and schematic way, with size and proportion ratios not relevant. The wind power installation 1 according to Figure 6 comprises a crane 50 or a similar device in the tower 7 and / or a cable winch 51 which is provided in a support device in the form of the turbine support 40 (corresponding to the support turbine 3) to lower a turbine T of the wind power installation 1 from an upper position (in the vicinity of the upper end of the mast, standard operating position) to a position at least close to the ground for special purposes. In the exemplary embodiment illustrated, a rotor hub 35 (which is analogous to rotor hub 12) is supported (secured) through components two 30, 40 against a support device in the shape of tower 7, two interfaces 20, 20a being shown for the connection or coupling of the rotor hub 35 and its clamping device 30 to the tower 7, i.e. between a clamping device 30 (a first component) for the rotor hub 35 and a support device 40 (a second component) ) as well as between the second component and the top of the tower 7, the first component being able to be articulated in relation to the second component around an axis that is arranged in a plane that extends somewhat horizontally, so that the rotor 4 with its blades it can be rotated or tilted from an essentially vertical layout plane to an essentially horizontal layout plane. Figure 6 shows the turbine, in this case indicated by the rotor hub 35, in two different positions, that is, on the one hand in the operating position and on the other in the rotated position (articulated according to the second angular region).
With regard to the term “soil” on a support at least close to the ground, a reference surface can be considered in this case, which corresponds to the ground surface itself or the ground level 100 (see Figure 5), whether in the case land or sea. The crane 50 or the cable winch 51 can be coupled for this purpose with the rotor hub 35 and its clamping device 30, the rotor hub 35 then being detachable from a clamping device 30 and / or the support device 40. Therefore, an elastic interface 20 with spring and damping elements does not exclude the possibility that at least one joint is provided that allows an articulation of the rotor hub 35 (turbine) within an angle (second angular region) such that the rotor hub 35, it is enough that during a disassembly it is lowered from this articulated position in the direction of the ground or that for the assembly it is enough that it is only raised from the ground to be coupled with a support device in the form of a turbine support 40 or with a similar component, be pivoted to an operating position (as in Figure 5 above, for example).
Thus, Figure 6 shows the same rotor hub 35 (for viewing the turbine) in different positions, that is, in an operating position, in which an elastic interface 20 can also act, and in a position from which the rotor hub 35 can be articulated together with the clamping device 30 (lowered) for disassembly or maintenance services or for the assembly and startup to be articulated again to the operating position.
In addition, in Figure 6 it is shown that a cable or similar connection means 51a of the cable winch 51 is connectable at a coupling point 32 disposed essentially in the middle with the fixing device 30, and it is further shown that the region or regions where an elastic interface 20 can be envisaged (the elastic elements are not explicitly or fully illustrated), do not necessarily have to be on a plane. It is also not explicitly illustrated, however it is indicated by reference number 20a, a second interface or another coupling unit between the second component, that is, between the turbine support 40 and the top of the tower 7, and this interface 20a it can be performed analogously to interface 20, or it can have different elastic elements, such as elements that first produce a damping effect. The elastic interface 20 can have controllable or non-controllable elements.
Figure 7 shows another possibility of rotation of the T turbine of the wind energy installation 1, which is visualized by the fixing device 30, with an articulated joint device 46 and this articulated joint device 46 being arranged between a part of a elastic interface 20 and the second component 40, and rests against the second component. For example, an articulated joint device 46 can be provided, which rests against the turbine support 40, such as through one or more struts 42, for example. The articulated joint device 46 has a joint arm 461 which is coupled to a flange 462 or together with this flange 462 forms a solidary strut. The joint arm 461 is designed at least partially curved, so that it can be supported against the turbine support 40 and yet it can be easily articulated between a flange 41 and the turbine support 40 and the elastic interface 20, such as an elastic element 21. For this purpose the flange 462 can be so designed that it can be simply coupled to the turbine support 40 and to a fixture 30 or to a rotor support (not shown), that it therefore presents, for example, in the case of screw connections, perforations that are arranged in the same position as the perforations on the flange 41, on the turbine support 40 and / or on a flange of an elastic element 21.
If the fixing device 30 is decoupled from the turbine support 40 on all interfaces where the articulated joint device 46 has not been provided and if, in addition, the flange 462 of the turbine support 40 is decoupled from the turbine support 40 , the fixing device 30 will be pivotable in relation to the turbine support 40 and in such a way that a rotor or the whole of the T turbine (not shown) can be articulated from a plane at least approximately vertical (plane of rotation of the rotor) to a position at least approximately horizontal (axis of rotation of the rotor is approximately perpendicular). This can occur, for example, by causing the distance between the fixing device 30 and the flange 41 of the turbine support 40, during which no articulated joint device 46 is provided, to be slowly increased during a joint. , either by means of a cable winch between the fixing device 30 and this flange 41 or optionally additionally, by means of a braking moment which acts against a rotation of the articulated joint device 46 in relation to the support device 40. O articulated joint device 46 shown in Figure 7 represents a variant that is characterized by a slight possibility of integration with a support structure, since such articulated joint device can, for example, also be upgraded, provided in the turbine support 40 a support device 42 and that the flange or flanges 41 are displaced by such a value (by shortening the turbine support 40, for example) that, in addition, it can be A flange 461 of the articulated joint device 46 is arranged between the turbine support 40 and the elastic interface 20, without the elastic interface 20 having to be moved or the individual elastic elements 21 having to be changed.
The articulated joint device 46 can also be provided between an elastic interface 20 and the first component 30, which corresponds, for example, to a rotor fixation, so that it is possible to decouple the rotor from the elastic coupling device or the interface and the elastic elements 21 that make it up This can be advantageous when a particularly heavy component must be dismantled more precisely a particularly heavy rotor and consequently a heavy T turbine from the wind energy installation 1, because then the gravity force of the rotor can be directly introduced in the turbine support 40 without passing through the elastic elements 21. Depending on the configuration of the elastic elements 21 this can be useful both with regard to an unnecessary stress and thus with a change possibly accompanying the elastic characteristics or damping characteristics of the elastic elements or of a part of the elastic elements 21 (interface elás optics). Furthermore, what essentially occurs is that an articulated joint device can be directly integrated into the flow of forces, as shown in the other Figures 8 and 9, or as shown in Figure 7, outside the flow of forces and either independently or as a additional component of the turbine support 40. In the articulated joint device shown in Figure 7, it can be said that, as explained above, it is an external joint, that is, a joint that is outside the flow of forces or in the vicinity of the main force flow lines.
Whether the rotor in its entirety together with the rotor blades or only rotor support elements and possibly other components of a drive train can be assembled or dismounted using this tilt mechanism, it will always depend on how compact or resistant the execution of articulated joint device 46 or elastic elements 21. Whatever the case, it can be guaranteed with an articulated joint device according to Figure 9, or also according to one of the following two Figures 10 and 11, at least one simultaneous assembly or disassembly of the rotor, without the rotor blades, but with some other components usually assigned to a traction unit or with all these components.
In Figure 8, an articulated joint device 36 is shown, which allows a rotation (inclination) of rotor support elements or a first component in relation to a second component, with the articulated joint device 36 being used in a installation of wind energy according to Figure 7, for example, and the articulated joint device 36 according to Figure 8 can be arranged directly in the flow of forces between the rotor support elements. more precisely between a fixture for rotor support elements that correspond to a first component and a second component, and can form a part of the fixture. The articulated joint device 36 can essentially assume the same function as the articulated joint device 46 shown in figure 7, however, the jute device 36 is not arranged between an elastic interface 20 and a stationary support structure, but between a clamping device 30 which forms a first component of the structure and the elastic interface 20, as part of the clamping device 30, for example, directly in the flow of forces between rotor support elements (not shown) more precisely the clamping device 30 for the rotor support elements and a second component, that is, the turbine support 40. The articulated joint device 36 thus forms a clamping device 30 which consists of at least two components displaceable in relation to each other, being that, depending on the number of coupling points or flanges 31, the articulated joint device 36 guarantees a relative movement of a rotor (not shown) in r connection to at least two flanges 31, and a firm connection can be guaranteed in the assembled state through at least one flange 31.
It should be noted that in the case of this variant, the possibility of an articulated joint device 36 is not excluded, that the articulated joint device 36 can also be rigidly connected and can, for example, be locked, so that it can occur the possibility of providing another articulated joint (not shown) such as an articulated joint device according to Figures 7 and 9, this articulated joint can also be locked. Thus, for each application case, and depending on external factors that cannot be influenced, such as environmental or weather influences, for example, it can be decided whether the articulation on the turbine support 40 should be produced in the flexible side around the articulated joint device 36 or the non-flexible side around an articulated joint device. The articulated joint 46 can be provided directly in the structure of the turbine support 40, being, therefore, integrated with the turbine support 40 itself, so that no additional connection by flange is necessary, and the expenses with the assembly or with disassembly are not increased nor do any additional sources of failure or insecurity factors occur.
In the case of the articulated joint 46 shown in figure 9, it is possible to speak, therefore, of an articulated joint that is arranged in the flow of forces on the side without flexibility. This articulated joint has neither an effect on the uniform distribution of the masses of a fixing device 30, or a rotor support, nor on the characteristics of flexibility or damping, as it forms part of the essentially rigid turbine support 40.
Figure 10 shows a simplified schematic illustration of the T turbine and the turbine support 40 disposed in tower 7 of the wind power installation 1 with the possibility of displacing the turbine support 40 and the possibility of articulating and lowering the T turbine towards the in which case the wind power installation 1 is not in operation. According to the illustration in figure 10 the same turbine support 40 is shown in different positions in tower 7 of the wind power installation 1.
In the upper position in the tower 7, the turbine support 40 is in an operating position close to the upper end of the tower 7 or else it is in a slightly lowered position according to Figure 10, so that the turbine T including the rotor 4 with its rotor blades 5 and the drive unit (usually consisting of a gear, if necessary, and a generator (neither of which is shown)) is arranged in an operating position or also in a resting position. The highest position represents the first position P1. The total unit of the turbine T can be arranged depending on the existing wind conditions, such as the wind speed, in such a way that the axis of rotation 2 of the rotor 4 extends essentially horizontally, and the plane of rotation of the blades of the rotor 5 extends essentially perpendicular to the longitudinal extension of the tower 7 or the reference plane H shown in Figure 1 as being essentially horizontal. If such wind conditions are necessary, that the rotation axis 2 of the rotor 5 must be tilted, there is a possibility, as already described in connection with the previous exemplary modalities and shown, for example, in Figure 1, of tilting the axis of rotation 2 in the first angular region in relation to the reference plane H, the total T turbine being rotated by means of the rotating bearing 11 around the axis of rotation 8 in relation to the turbine support 40. In this way the angles can be adjusted α positive small data above the first angular region of approximately 0 ° to 10 ° in relation to the reference plane H (Figure 1). In moderate wind conditions, the axis of rotation 2 can also remain in the position shown in Figure 10.
The upper part of Figure 10 shows, therefore, the possibility of tilting the T turbine of the wind energy installation 1 according to the need for a small angle α (first angular region), as shown in Figure 1. This is indicated in Figure 10 by means of a curved arrow and indicated with α. The possibility of adjusting a predetermined inclination of the rotation axis 2 of the turbine T is independent of the possibility of the turbine support 40 being moved as desired along the extension of the tower 7 within at least one predetermined region, and thus can also be lowered. The construction essentially corresponds to the construction shown in figure 4, whose essential characteristics are described with reference to the lifting or lowering of the turbine support 40 and an inclination of the T turbine also in connection with Figure 5.
Figure 10 also shows the displacement device 18 mentioned in Figure 4, the device being connected with the turbine support 40 and a detent device 19 being provided for fixing and anchoring the turbine support 40, after the displacement of the turbine support. 40 along tower 7, in a specific position (in the second position P2 or in the third position P3, for example).
The set shown in Figures 4 and 10 with the functions described above, is, moreover, independent of the fact that the turbine support 40 can be rotated around the longitudinal axis 6 of the tower 7 to accompany the change in the wind direction (adjustment of the azimuth).
Figure 10 shows the possibility of completely lowering the T turbine (to the ground level at the base of the tower 7, second position P2), while the turbine support 40 remains at a predetermined height in the tower 7 (intermediate position or third position P3) or proceed to a lowering in which both the turbine support 40 and the T turbine are lowered. The arrangement of the turbine support 40 at an intermediate height of the tower 7 allows to see, according to Figure 10, that the T turbine can be lowered, after the release of the turbine support 40, by means of a set of corresponding cables in connection with a cable winch 60 (lifting device). The wind power installation 1 in this case is not in operation. To this end, a rotation of the turbine T is produced around the axis of rotation 8 corresponding to the second angular region, a release of the turbine T and a lowering of the turbine T along the tower 7 to the ground level 100, so that the turbine, the rotor hub 35, for example, and the corresponding rotor blades 5 can be found in a predetermined way on the soil surface. With a ground level arrangement 100 inclined in relation to tower 7, the T turbine must be articulated accordingly.
The lower illustration in Figure 10 also shows the possibility that the displacement device 18, which is connected with the turbine support 40, is able to lower the turbine support 40 fully to the base of the tower 7 (second position P2) , so that in this situation shown, both the turbine support 40 as well as the T turbine can be lowered together, and from a predetermined height the T turbine is inclined from a greater angle α (second angular region in relation to the plane of reference H, which is within the total angular region), so that the imaginary rotation plane of the rotor blades 5 is essentially parallel to the ground level or as needed, also slightly inclined. In this way the spatial position of the rotor axis of rotation 2 is changed and the T turbine, with the rotor blades 5, for example, and with the rotor hub 35, can also be placed on the ground 100 or on a suitable prepared surface. .
The rotation of the azimuth around the longitudinal axis 6 of the tower 7, the rotation of the turbine T around the axis of rotation 8 and the raising or lowering of the turbine support 40 along the extension of the tower 7 can occur independently of each other. However, the T turbine must be rotated (tilted) before reaching a minimum height of the rotor axis 2 of the rotor 4 above the ground (depending on the length of the rotor blades 5) so that damage to the rotor blades 5.
Although simplified and schematic illustrations have been used in the preceding figures to illustrate the components involved and their functions, Figure 11 below shows a concrete modality of the turbine assembly t and the turbine support 40 for the rotating support of the turbine. Figure 11 shows the T turbine in the used state, as it is fixed and maintained by the turbine support 40. This can be an inactive state or a functioning state. The arrangement shown in Figure 1 does not illustrate the possibilities of the slight inclination of the T turbine from a small angle α (first angular region), as shown, for example, in Figure 1. This possibility of a slight rotation or inclination of the T turbine also is predicted according to Figure 11, however it is not shown in detail. The illustration in Figure 11 refers in detail to the provision of a mechanism to rotate the T turbine downwards and then to lower the T turbine to any height, and preferably to the base of the tower 7 for the arrangement on the soil surface (100, for example, according to Figure 5).
In the inactive position or in the actuation position according to Figure 11, the first inversion cylinders 61 are fixed to the T turbine. The turbine support 40 comprises two inversion cylinders 62, which are mechanically fixed to the turbine support 40. In connection with the first and second inversion cylinders 51 and 52 a cable 63 is provided, by means of which the first and second inversion cylinders 61, and 62 are connected as if it were a pulley. One end of the cable 63 is connected with a fixed point 64, which can be arranged, for example, on the turbine support 40, and the other end of the cable 65 is guided to a winch of the cable S, to influence the length of the cable. cable and thus the relative movement between the turbine T and the turbine support 40. The cable winch S can in this case form a part of the wind energy installation 1 or be a unit arranged outside it. In the case of a corresponding force exerted through the cable winch on the cable 63, the T turbine can be brought to its operating position or to the inactive position according to Figure 11, and the possibility exists that the T turbine be connected in this position mechanically with the turbine support 40. Then the cable 53 can be removed or the force exerted by the cable 63 can be released, so that the cable 63 is loosened and can remain so. By means of third inversion cylinders 66 arranged in the turbine support 40, a balance of cable forces is guaranteed between the first and the second inversion cylinders 61 and 62 arranged respectively on the left and on the right. The components 61 and 66 given above form a cable hoist.
It is obtained by means of the third inversion cylinders 66 that with a cable 63 only between the inversion cylinders 61, 62 and 66 a balance of forces and loads is produced between the two sides of the set shown in figure 11. Without a corresponding balance between the forces of the cables between the two sides (between the left and the right side, for example, in the illustration according to Figure 11) in special cases, considerably unequal forces would occur in the cable 63, so that a load would occur unilateral that would have up to twice the conventional load (standard load during the total uniform distribution of the incident forces). It would then also be necessary, with a considerable increase in costs, to dimension the relevant elements, such as the cable 63, the inversion cylinders 61, 62 and 66 as well as its fixation for a load at least doubled. An uneven load, that is, an essentially greater load on one side of the cable and reversing cylinder set according to Figure 11 could also occur during errors in a balance of cable forces, during the lowering or raising of the T turbine. (Figure 2) during the wind, when the T turbine is subjected to an articulation movement due to wind loads.
The cable winch 60 shown in Figure 10 and arranged on the turbine support 40 as well as the components (first and second inversion cylinders 61 and 62, the cable 63 with the fixed point 64 and the other end of the cable 65 as well as the third inversion cylinders 66) form a hinge device.
Figure 12 with individual Figures 12A to 12D illustrates the possibility, with the arrangement shown in Figure 11, of again lifting, through the cable hoist (60 to 66), to the operating position a T turbine that was, for example , assembled, subjected to maintenance services or repaired at ground level 100, and to have and fix it on the turbine support 40.
The starting point of the following illustration is the situation in which the T turbine has been completely lowered to the ground level 100, and must now be lifted back to the operating position. The illustration in Figures 11 and 12 shows only the rotor hub 35 without the rotor blades 5 for the purpose of simplifying the illustration, with the rotor blades 5 being mounted before the turbine T is lifted. The T turbine can be fully assembled in one simple and advantageous way in the second position P2 (at ground level 100) before lifting.
According to Figure 12A, the turbine T is connected with the second inversion cylinders 62 of the turbine support 40 through the cable 63 and the first cylinders 61 (in the turbine). If it is exerted through the cable winch S (not shown in Figure 12) at the end of the cable 65, and the cable 63 is pulled, the T turbine will be lifted and will reach its path along the turrets 7 near the turbine support 40 according to
Figure 12A. If, according to Figure 12B, the T turbine is further lifted and moved in the direction of the turbine support 40 along the extension of the tower 7, then the T turbine will engage with the turbine support 40. For this purpose, the turbine T has a connecting arm 67 which is arranged on the side of the turbine T which is arranged, after the complete introduction of the turbine T on the turbine support 40 on the underside of the turbine T. In addition, the turbine support 40 comprises a device for bearing 68 which is arranged according to Figures 12A to 12D and Figure 11 in the lower region of the turbine support 40. The T turbine hanging on the cable 63 is guided essentially vertically upwards and the connecting arm 67 engages with the device bearing 68, a rounded end 68 disposed on the connecting arm 67 can reach a corresponding depression of the bearing device 68, so that the turbine T and the turbine support 40 are connected to each other through the aforementioned elements. The T turbine can have at least one connection arm 67 or even a multiplicity of them.
If the rounded end of the arm 67 of the turbine T is located within the bearing device 68, a rotation point 70 can thus be formed around which the turbine T can rotate, when it moves, according to Figure 12C continuing in the direction of the turbine support 40. With the continuation of cable traction 63, the T turbine moves, according to Figure 12 C around the point of rotation 70 upwards, so that with the illustration in figure 12D a final position of this movement is reached and the mutual position of the T turbine and the turbine support 40 is a normal or standard position, as also shown in Figure 11. Therefore, depending on the functional situation, the turbine support can be found or in first or third position (intermediate position) P1 or P3.
In this situation, the connection arm 67 with its rounded end 69 is engaged with the bearing device 68 and the T turbine can be connected with other technical means, such as, for example, with a screwing, firmly with the turbine support. 40. In connection with this there is a possibility that, as, for example, according to the illustration in Figures 7 to 9 elastic elements can be arranged between the turbine support 40 and the T turbine.
According to Figures 11 and 12, the rotating connection 70, produced by the approach of the T turbine to the turbine support, assumes the function of the firm rotating connection, as it has already been presented, for example, in the previous figures. The functions, for example, of the respective rotating joints 36 and 46 in Figures 8 and 9 as well as of the articulated joints in general around the axis of rotation 8, in connection with the rotating bearing 11 (as shown, for example, shown in Figures 5 and 10).
Figure 12 with partial Figures 12A and 12D shows the return of the T turbine from a position close to ground level 100 and the introduction of the T turbine into the turbine support 40. If, on the other hand, the T turbine must be lowered leaving the situation shown in Figure 12D, it is necessary to take the measures in the reverse sequence, in which the turbine T inside the turbine support 40 is loosened, slightly lowered and the rotation movement is carried out around the temporary rotating connection 70 ( second angular region) and finally the turbine is lowered completely by means of cable 63 to the desired height, and, for example, on the ground level 100 so that the rotor blades 5 can be placed on a corresponding previously prepared surface without damage .
According to the arrangement in Figures 11 and 12, the wind power installation and, for example, the combination of T turbine with the turbine support 40, further comprises a rotating joint not shown in these figures, for obtaining a slight slope indicated, for example, in Figure 1, depending on the wind conditions (first angular region) and also a regulated adjustment of the slope depending on the measured wind intensities (Figure 2). In this case, the T turbine can be tilted slightly from the standard position shown in Figures 11 and 12D, as well as from a positive α angle according to Figure 1. In this case, depending on the selected arrangement, the end 69 of the control arm connection 67 no longer rests against bearing device 68, and therefore does not form any rotating connection 70 of this type. In this case, the axis of rotation for the provision of the minimum inclination according to Figure 1 and the axis of rotation for the rotation of the turbine T to release it from the turbine support and to lower the turbine T to the ground level, for example. example, are not identical. The possibility of identical rotation points is given, for example, in Figures 4 and 5.
It should also be noted that an inclination or rotation of the T turbine of the wind power installation 1 must not necessarily take place around a specific point of rotation, more precisely around an axis of rotation (the axis of rotation 8, for example , of Figures 1, 4 and 5), and the rotation can also take place by means of a mechanical device or by a mechanism, such as, for example, an arrangement of four connections. The articulation device can therefore have the mechanical device as, for example, the arrangement of four connections as a bearing device. Therefore, the T turbine of the wind power installation 1 can move in relation to the turbine support 3 or 40 both in translation and in rotation, and after the movement, it can be rotated, and if necessary, propelled, against its original position, so that then a total lowering is possible. In this case, there is a combination of movements in translation and rotation that result in the desired articulation (that is, in the desired articulation angle) of the T turbine. In this case, a predetermined articulation line (curve) can be obtained. In this case, it is possible, by means of mechanical devices, both the articulation within the first angular region (during the operation of the wind energy installation 1) as well as in connection with greater articulation angles in the second angular region (measures for assembly / disassembly, or maintenance services, before lowering).
With regard to the above description, the arrangement of a wind energy installation 1 in connection with the T turbine and with turbine support 40 therefore comprises a system of levers and points of rotation for the kinematics of the movement, such as that of the turbine T inside the turbine support 40 or in the vicinity of the turbine support, so that better positioning and more reliable driving are ensured during the movement. The engagement of the rounded end 69 of the connecting arm 67 in the bearing device 68 allows, for example, the formation of a rotating connection 70 (at least temporary), so that reliable driving of the T turbine that performs, for example, is guaranteed , a rotating movement, so that work with a certain wind load can also be continued during assembly. In this way, operating situations are accessible for an assembly that would not be possible with another known configuration of the wind energy installation, so that, according to the present invention, additional downtime and downtime of the wind energy installation can be avoided. 1.
There is also the possibility, according to Figure 12A, for example, that the T turbine freely hanging from the cable 63 still rotates a predetermined measure, around, for example, an axis of rotation formed by the first inversion cylinders 61 , so that with respect to the position of the T turbine during lowering in the direction of the ground level, an adaptation can be made to an inclined soil surface, so that a three-bladed rotor, for example, can be deposited without damage .
Regardless of the fact that, according to Figures 11 and 12, the T turbine is separated from the turbine support 40 and then lowered, and likewise leaving the lowered position it can be connected again to the turbine support 40, the support turbine itself has the ability to rotate around the vertical axis, that is, axis 6 of tower 7, so that azimuth adjustment can be carried out.
In addition, there is also the possibility, regardless of the possibility of lowering the T turbine by means of cable 63, to proceed, according to the illustration in Figures 4, 5 and 10, which correspond to another requirement and the wind conditions, for example, the lowering of the turbine support 40 together with the T turbine to an intermediate height (such as the third position P3, for example), when, for example, too strong a wind would mechanically and electrically overload the wind energy installation 1. The height of the T turbine above ground level 100 (third position P3) is determined by the wind speed itself, which can be measured by an anemometer or the like. As in the case of a measured wind speed, the wind speed at a height below the top of the tower can also be determined relatively simply, or another measurement can be made with a second anemometer, which can then be determined from a very reliable way, and the T turbine can be adjusted to a height of the third position P3, where a very good performance is still possible, and the installation of wind energy 1, for example, in addition, can function with a nominal operation although the loads on the installation of wind energy 1 in the mechanical and electrical sense can be significantly reduced. A shutdown of the wind power installation, which in the known solutions is necessary, is not necessary according to the present invention. This measurement can be combined with an adjustment of the blade inclination angle of the rotor blades 5 as well as a slight inclination of the rotation axis of the rotor 2 according to the first angular region.
In connection with the assembly process according to Figure 12 and also with a disassembly to be carried out in an equal and inverse sequence, it is possible to rotate the rotor blades 5 arranged in the rotor hub during the movement of the T turbine. 35 (Figures 12a to 12D) around its own longitudinal axis (adjustment of the blade inclination angle) so that, in this case, the influence of a wind load can be reduced. The adjustment of the angle of inclination of the blades is independent of the movement of the T turbine in relation to the turbine support 40 and thus represents a possibility of additional independent adaptation.
Figure 13 shows, in a simplified and schematic way, the wind energy installation 1, in which, with respect to the components of the wind energy installation, an arrangement in the form of several modules is in the foreground.
In the same way as in Figures 4, 5 and 10, the wind energy installation comprises the turbine support 40 disposed in the tower 7 (support structure). In addition, Figure 13 shows the turbine T of the wind power installation 1, and this may in a simplified way consist of a rotor 4 with rotor blades 5 and the rotor hub 35, for example, and the clamping device 30. Between the turbine T and the turbine support 40, an intermediate element Z is arranged, which essentially consists of a rotating bearing 11, by means of which a rotation is possible around the axis of rotation 8. The intermediate element (intermediate module) Z it thus represents a connection or an interface between the turbine T and the turbine support 40.
Thus, the entire wind power installation 1, according to Figure 13, can consist of a first module which comprises, for example, a support device in general, such as tower 7, for example. In addition, a second module can be provided comprising a turbine support 40. A third module can, for example, be formed in the form of the turbine T, forming the intermediate element Z (and consequently the fourth module) the interface between the second and third module.
It can therefore be that the first module in the shape of the tower 7 is formed in the form of a universal support device, and a first module can also be formed by the tower 7 and the turbine support 40. If it is formed on the side of the turbine support 40 opposite to the intermediate module Z a standardized interface, that is, if standardized connection elements have been provided, then a multiplicity of different modules can be arranged on the universal turbine support 40, as long as the interfaces and the corresponding mechanical equipment coincide.
The manufacturer of wind energy installations therefore has the possibility to plan and build the wind energy installation in question with a modular configuration described above, so that depending on the different performance classes or even local conditions of a site of a wind power installation, the modules can have different configurations. In addition, the manufacturer may have specialized in individual modules, so that modules from different manufacturers and different types can be combined, provided that the respective connection elements are defined and designed accordingly, so that a free combination of the various components (modules). The manufacturer specializing in the manufacture of the module containing the T turbine can combine its products directly or through the intermediate element Z with the first module (such as with the turbine support 40).
The present invention is not limited to the distribution of the modules. On the contrary, other distributions can also be taken, depending on the application.
Consequently, with the simple displacement of the turbine support 40 along the tower 7 (Figures 5 and 10) and with the simple lowering and possible lifting of the turbine T according to Figures 11 and 12, simple measures are described to be assembled in a quite way. wind energy installation 1 is economical or it can also be dismantled, for example, for maintenance or repair services. The assembly according to Figures 11 and 12 and the procedure according to Figure 12 allows a slow and smooth screwing of the T turbine in the standard position inside the turbine holder 40 (regardless of the position that the turbine holder 40 itself has) ), with movement, such as the T turbine joint, being conducted reliably. An imaginary axis of the first inversion cylinders 61 can also be so arranged that it passes through the center of gravity of the turbine T in the state in which it hangs freely, and thus the turbine T, after detaching itself from the turbine support 40 , in the initial articulation movement, it is guided through the bearing device and the connecting arm 57 and later a conduction is reached in which the T turbine can assume a stable position in the cable 63.
In order to improve the conduction, during the lowering of the T turbine and also during the lifting of the T turbine, in the case of an assembly, the conduction of the movement can take place along the tower 7, for example, a conduction can be produced of properly tensioned cables or also by means of rails arranged in the tower, thus making the T turbine its displacement, along the rails arranged on the external face of the tower, for example. It is also possible to arrange cylinders in the structural unit of the turbine T or it is possible to apply them before the lowering and lifting of the turbine T, so that the turbine T can move on a previously determined surface of the external surface of the tower 7 in a directed manner .
With the slow and smooth screwing of the T turbine on the turbine support 40 according to Figures 12A to 12B, structural elements provided for fixing the T turbine on the turbine support 40, such as flanges and other fastening elements, are spared. The risk that damage to these elements may occur during the assembly or disassembly process is only small. In addition, the impact forces acting on the tower in connection with the lifting and insertion of the T turbine are reduced. The smooth screwing process of the T turbine during insertion in the turbine support 40 can be further supported by means of elements applicable damping rates. In this way, undesirable oscillations produced by sudden impacts are avoided. Further support can be obtained by adjusting the applicable blade inclination angle of the rotor blades, to provide a lower incidence surface in the event of an incident wind load. In this way it is also possible in connection with the arrangement according to the present invention to mount, which is impossible in other cases, in the case of a predetermined incidence of the wind.
The articulation of the T turbine of the wind power installation 1 allows the T turbine, or even the T turbine, to be lowered together with the turbine support 40 in the case of multi-blade rotors close to the tower 7 to the ground level 100 or even if it is lifted to a desired operating position or to the highest possible position corresponding to the arrangement of tower 7 (first position P1). In addition, in connection with the rotation of the turbine, such as, for example, according to Figure 12C and in reverse during disassembly and in connection with the lowering, a multi-blade rotor having at least three blades can be deposited above ground level 100 without the rotor blades 5 having to be disassembled beforehand. The time and costs spent on assembly can thus be reduced considerably. In connection with an adjustment of the applicable blade inclination angle, assembly or disassembly can also be carried out under certain wind conditions. In addition, with the T turbine lowered to ground level 100, a multi-blade rotor that has been completely mounted on the ground can be lifted simply and mounted on the tower relatively quickly without the use of a crane. In this case, either the T turbine is only displaced or the T turbine is displaced together with the turbine support 40 (see Figure 10).
The fact that it is essentially possible to also lower the T turbine in connection with the turbine support, allows the T turbine and the turbine support to be arranged in an intermediate position in the tower, so that altered wind conditions can be taken into account such as, for example, a strong wind.
In connection with the arrangement according to the present invention, the turbine rotor T can be completely pre-assembled on the ground, so that simple assembly is ensured without the need for essential auxiliary mechanical means.
The connection required for the rotation of the turbine T in relation to the turbine support 40 can be arranged, according to the arrangement of Figures 11 and 12 directly in the flow of forces between the turbine T and the turbine support or also outside the main flow of forces. See also Figures 9 to 11 for this purpose. In the latter case, the point of rotation or the axis of rotation does not necessarily need to be in the turbine support 40, and during the tilt or rotation process, the T turbine can also support itself in another structure that functions as a support structure, such as tower 7. With the funnel-shaped bearing device 68 on the turbine support 40, however, a suitable device is provided to ensure the smooth screwing of the T turbine. during assembly or smooth exit of the T turbine during disassembly after rotation.
With the arrangement of the wind power installation 1 according to the present invention, many measures can be taken to adjust the performance of the wind power installation 1 depending on the wind conditions. It is possible, by adjusting the blade inclination angle, to change the effective surface of the rotor, where the blades are rotated around their longitudinal axis. The rotation can be influenced both in the direction of its direction and in an adjustment. In the case of a strong wind, which may have an influence on the potential and stability of the wind power installation 1, there is a possibility, according to the description above, that the T turbine and the turbine support 40 are moved downwards along the tower to a small height, so that it can be counted, due to the small height above ground level 100, with a small wind intensity. In addition, according to the illustration in Figure 1, for example, the T turbine by means of the rotating bearing inside the turbine support 40 can be adjusted with an inclination of a few degrees, such as, for example, from 4 ° to 10 ° ° (first angular region), so that with this inclination the reliable operation of the wind energy installation 1 can also be ensured. Consequently, the T turbine on the turbine support, according to, for example, Figures 4, 5 or 10 , can be rotated within the total angular region of at least 120 °. The entire angular region comprises the first angular region with the small angles in the upward direction (from approximately 0 ° to at least 10 °) as well as the second region with the angles in the downward direction of the second angular region from 0 ° to at least 110 °. The first and second angular regions are observed in relation to the essentially horizontal H reference plane (Figures 1, 4 and 10). The horizontal reference plane H lies within the total angular region.
With the measurements taken of the rotation or articulation of the turbine of the wind energy installation in relation to the reference plane H, of the lowering of the turbine T together with the turbine support 3 or 40 (with the turbine already articulated or still in position operation) and the independent rotation of the rotor blades 5 around their axis of rotation (angular inclination of the blades), a multiplicity of possibilities is proposed, depending on the application, of adapting the operation of the wind energy installation 1 to the conditions of the wind and also to the location of the installation of the wind energy installation 1, or to facilitate essentially the assembly or disassembly. As with the devices embedded in the wind power installation 1 for the lifting and lowering of the T turbine and the turbine support 3 and 40, the purchase of a crane that very often represents a bottleneck both in the case of obtaining and removing it can be dispensed with. with regard to costs, expenses with assembly and disassembly are considerably reduced. If the wind power installation towers 1 were designed with a higher height, such as, for example, more than 150 m, the use of a crane to lift the corresponding masses of the T turbine and the turbine support 3 or 40 it would be practically impossible. The arrangement according to the present invention, which does not require the use of a crane, allows the height of the towers of wind energy installations to be increased in regions where a high wind speed reigns and the efficiency of the energy installation can be increased wind power, this increase in efficiency being greater than in the case of an increase in the surface of the rotor blades (a longer length of the rotor blades). With the installation of wind energy 1 according to the present invention there is the possibility of penetrating regions of wind speed that are more profitable, without having to proportionally increase costs. A higher tower height in terms of efficiency is better than a large span of rotor blades. With the comfortable possibility of mounting / dismounting the wind power installation 1 according to the present invention (function of a built-in crane) without the use of a crane, the height of the towers can be increased even further. This serves, for example, also for regions on the high seas, where it would be difficult to use a crane for the masses and heights in question.
The measures taken above can be introduced independently of each other, provided that, when lowering the turbine support 40 to a small height (position 3, for example, in Figure 10), the inclination will not be exceeded by a certain measure of the T turbine, to avoid a collision of the rotor blades 5 with the upper end of the tower 7.
The present invention further comprises the other aspects given below. The wind energy installation can be equipped with a rotor that has two or possibly more rotor blades, the rotor being connected with a generator for the production of electrical energy, and the rotor and generator being housed in a gondola, presenting the gondola. a support structure that allows a displacement of the gondola during the operation of the wind energy installation against a tower, to which the wind energy installation can be attached, the support structure being connected to the tower through at least one detention device, and being designed to hold the gondola at a desired height, which preferably depends on the wind speed at the desired height. In this case, the support structure allows the gondola to rotate around the vertical axis of the tower. In addition, the support structure may have a displacement unit to move the gondola along the tower, from the base of the tower to the top of the tower.
A displacement for the operation of a wind energy installation can be carried out in such a way that a wind energy installation moves with a traction unit consisting of a rotor and a generator, the traction unit being displaceable along the longitudinal axis. of the tower and the height of the traction unit above ground level can be adjusted, depending on the wind speed, for example.
Such a wind energy installation can be so constructed with a rotor that has two or possibly more rotor blades, the rotor being connected with a generator for the production of electric energy and the wind energy installation having a gondola that supports the rotor and generator that constitute a traction unit, that the rotor has a predetermined inclination of the rotor shaft having an angle α, and the rotor can be articulated around a point of rotation to change the inclination of the rotor shaft, and for the articulated movement of the rotor, more precisely the drive unit, a drive, supporting the drive against the gondola and acting on the drive unit with an adjustable force. The drive can consist, for example, of a hydraulic cylinder, but it can also consist of a motor or an alternative, rotary or linear actuator. In this case, the inclination of the rotor shaft, depending on the wind speed and / or the load on the rotor blades of the wind power installation, can be adjusted (changed) to a predetermined value. For determining the predetermined value of the rotor shaft inclination, the forces on the rotor blades can also be measured, the measured values can be processed in a computer according to a predetermined mathematical function and the calculated value can be adjusted to the inclination of the rotor shaft by adjusting the drive for the articulated movement of the drive. The rotor of the wind energy installation can also have a hub, inside which a gear can be installed that absorbs the rotor's moment of torque from the input side and which is connected to the rotating components of the generator on the output side. For the transfer of the moment from the rotor to the gear, a coupling can be provided, which is preferably designed in the form of an elastomeric coupling, so that the introduction of axial forces in the rotor and consequently in the hub can be reduced to a minimum. on the gears. The wind energy installation can be coupled to a tower on which the gondola is mounted, and the traction unit can be arranged with lateral spacing of the tower, and the rotation point or axis of rotation can be displaced laterally in relation to the tower. articulate and adjust the inclination of the rotor shaft.
The present invention has been described with reference to exemplary embodiments in connection with the relevant figures.
However, it will be evident to those skilled in the art in this area that the configuration of the present invention according to the figures described above and the reference numbers used for the respective parts and components of the figures and description as well as the exemplary data should not be considered as a limitation. Therefore, the invention is not limited to the representation given in the figures, nor, for example, to dimensions and arrangements. All the modalities and variants that affect the attached claims can be considered as belonging to the invention.

权利要求:
Claims (3)
[0001]
1. Wind energy installation (1) equipped with a rotor (4) which has two or possibly more rotor blades (5) and which is rotatably mounted to rotate around a rotor rotation axis (2), the rotor (4) is connected to a generator (10) to produce electrical energy and the rotor (4) and generator (10) form a part of a turbine (T) that is hosted by a turbine support (40 ) and the turbine support is rotatably arranged on a support structure (7), CHARACTERIZED by the fact that the turbine is raised to the turbine support (40) and is rotated into the turbine support (40) to fixing, with - a cable control (61 to 66) to raise the turbine (T) to the turbine support, to rotate the turbine (T) into the turbine support (40) and to support the turbine in a mobile way (T) during the turning process, and - a bearing device (67 to 70) for at least temporarily rotating the turbine (T) during the turning process, in q The bearing device (67 to 70) comprises: - a capture device (68) disposed on the turbine support (40), and - a connecting arm (67) having a rounded end (69) disposed on the turbine (T ), wherein - at least during the process of turning and to guide the turbine (T) the rounded end (69) of the connecting arm (67) is engaged with the catching device (68).
[0002]
2. Wind energy installation, according to claim 1, CARAC TERI ZADA by the fact that the bearing device (67 to 70) is configured to temporarily engage with at least one connecting arm (67) that is arranged on the turbine (T) during the rotation, in which the connection 5 of the connection arm (67) with the capture device (68) is releasable by means of the cable control (61 to 66) at the conclusion of the rotation process.
[0003]
3. Wind power installation, according to claim 1, CHARACTERIZED by the fact that the cable control 10 (61 to 66) is configured to rotate the turbine (T) out of the turbine support (40) and hold movable form the turbine (T) during the turning process, and lower the turbine (T) in the rotated position.

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同族专利:

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公开号 | 公开日

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DE102010031081A1|2012-01-12|

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BR112013000402A2|2016-05-17|

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CA2823574A1|2012-01-12|

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US10352297B2|2019-07-16|

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WO2012003985A1|2012-01-12|

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CA2823574C|2018-11-27|

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EP2591228B1|2018-03-28|

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US20170074246A1|2017-03-16|

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TR201808070T4|2018-07-23|

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EP2591228A1|2013-05-15|

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US20130106109A1|2013-05-02|

引用文献:

---

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

---

---

DE2753956C2|1977-12-03|1979-11-22|Maschinenfabrik Augsburg-Nuernberg Ag, 8000 Muenchen|Maintenance and inspection equipment for large wind turbines|

---

US4297075A|1979-05-14|1981-10-27|Jacobs Marcellus L|Automatic storm protection control for wind energy system|

---

JPS6313028B2|1980-04-07|1988-03-23|Kogyo Gijutsuin|

---

EP0081545A1|1981-06-15|1983-06-22|BOLMGREN, Lars Olov|Wind driven power plant|

---

FI95960C|1993-06-23|1996-04-10|Kari Rajalahti|Method and apparatus for emergency stopping a wind power station|

---

AT401674B|1994-09-26|1996-11-25|Hehenberger Gerald Dipl Ing|WIND TURBINE|

---

DE19916454A1|1999-04-12|2000-10-19|Flender A F & Co|Gearbox for a wind turbine|

---

DK173530B2|1999-11-17|2005-07-18|Siemens Wind Power As|Method for mounting main components in a wind turbine cabin and such a wind turbine cabin|

---

DE19955516C1|1999-11-18|2001-12-20|Tacke Windenergie Gmbh|Wind turbine and method for removing and installing the main components of the machine housing of a wind turbine|

---

US20010038207A1|2000-05-02|2001-11-08|Willis Jeffrey O.|Method and means for mounting a wind turbine on a tower|

---

US20020070558A1|2000-11-07|2002-06-13|Kraml Johann|Windmill having speed-sensitive control system|

---

DE10205988B4|2002-02-14|2006-02-09|Aloys Wobben|Wind turbine|

---

US6979175B2|2002-10-17|2005-12-27|Devon Glen Drake|Downstream wind turbine|

---

DE602008002150D1|2007-01-24|2010-09-23|Vestas Wind Sys As|METHOD FOR MOVING A WIND TURBINE COMPONENT, SUCH AS A WIND TURBINE HUB, FROM A TRANSPORT POSITION TO A WIND TURBINE MOUNTING POSITION IN OR AT THE GONDOL, MAIN WAVE OR HUB, HANDLING UNIT, WIND TURBINE HUB, AND USE THEREOF|

---

ES2304319B1|2007-03-29|2009-07-21|GAMESA INNOVATION & TECHNOLOGY, S.L.|A TOWER OF CELOSIA AND A METHOD OF ERECTION OF AN AEROGENERATOR WITH A TOWER OF CELOSIA.|

---

FR2916785B1|2007-05-29|2009-07-17|Jean-Paul Albert Jules Ribo|TILT DEVICE FOR LARGE WIND TURBINES|

---

EP2014912A3|2007-06-06|2009-03-04|ICEC Holding AG|Wind turbine with a nacelle and method for constructing such a wind turbine|

---

FR2919903B1|2007-08-10|2011-10-14|Vergnet|METHOD FOR MOVING THE AEROMOTIVE ASSEMBLY OF AN AIR GENERATOR|

---

US20090087311A1|2007-09-29|2009-04-02|Gavin Raymond Wyborn|Vertically Adjustable Horizontal Axis Type Wind Turbine And Method Of Construction Thereof|

---

EP2328800A4|2008-09-08|2015-01-28|Flodesign Wind Turbine Corp|Systems and methods for protecting a wind turbine in high wind conditions|

---

US20100117368A1|2008-11-07|2010-05-13|Benito Pedro|Drive train supporting structure for a wind turbine|

---

DE102009016544A1|2009-04-06|2010-10-07|Win 2 Verwaltungsgesellschaft Mbh|Wind energy plant, has head provided with crane cable guidance unit that is formed for hoisting and lowering drive train, where drive train comprises rotor blade, rotor hub, transmission and generator |

---

DE102010031081A1|2010-07-07|2012-01-12|Skywind Gmbh|Wind turbine|DE102010031081A1|2010-07-07|2012-01-12|Skywind Gmbh|Wind turbine|

---

JP6113180B2|2011-11-17|2017-04-12|トサン ヘビー インダストリーズ アンド コンストラクション カンパニー，リミティド|Multi-type wind power generator|

---

US9644606B2|2012-06-29|2017-05-09|General Electric Company|Systems and methods to reduce tower oscillations in a wind turbine|

---

DE102012015178A1|2012-08-02|2014-02-06|Dennis Patrick Steel|Wind turbine on a tower, mast or chimney|

---

EP2754886B1|2013-01-14|2016-01-06|ALSTOM Renewable Technologies|Method of operating a wind turbine rotational system and wind turbine rotational system|

---

DE102014001421B4|2014-02-03|2015-10-22|Skywind Gmbh|Positioning device for a turbine of a wind turbine|

---

FR3028895B1|2014-11-20|2019-04-05|Osiwind|DEVICE FOR GENERATING ENERGY OF WIND TYPE.|

---

US10502189B2|2015-07-16|2019-12-10|Vesta Wind Systems A/S|Methods for erecting or dismantling a multirotor wind turbine|

---

DE102016006572A1|2016-06-01|2017-12-07|Senvion Gmbh|Device and arrangement for horizontal pre-assembly of a wind turbine rotor|

---

EP3269997B1|2016-07-14|2020-01-01|Siemens Gamesa Renewable Energy A/S|Oscillation absorber for a structure|

---

EP3284947A1|2016-08-18|2018-02-21|Skywind GmbH|Wind turbine and method for the assembly of the wind power plant|

---

DK201670769A1|2016-09-28|2017-10-02|Vestas Wind Sys As|A multirotor wind turbine|

---

DE102017004801A1|2017-05-18|2018-11-22|Senvion Gmbh|Method, load handler and mounting system for assembling a wind turbine|

---

EP3524812B1|2018-02-09|2021-03-31|Siemens Gamesa Renewable Energy A/S|Rotation device and method for rotating a wind turbine generator|

---

US20210057963A1|2018-05-08|2021-02-25|Miw Associates Llc|Manually operated generator and methods of use|

---

EP3604798A1|2018-08-03|2020-02-05|General Electric Company|A method for operating a wind turbine and a wind turbine system|

---

WO2021098923A1|2019-11-21|2021-05-27|Vestas Wind Systems A/S|Method of retrofitting a wind turbine|

---

CN112281935A|2020-10-19|2021-01-29|中冶建筑研究总院有限公司|Dynamic monitoring system and method for fan foundation ring|

法律状态:
2018-12-26| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|

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2019-11-12| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|

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2021-01-12| B09A| Decision: intention to grant|

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2021-03-16| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 07/07/2011, OBSERVADAS AS CONDICOES LEGAIS. |

优先权:

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申请号 | 申请日 | 专利标题

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DE102010031081.6|2010-07-07|

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DE102010031081A|DE102010031081A1|2010-07-07|2010-07-07|Wind turbine|

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PCT/EP2011/003383|WO2012003985A1|2010-07-07|2011-07-07|Wind power installation and method for adjusting the rotor rotation axis|

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