• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a floating device (2) for supporting a wind turbine (1) at sea and comprising a floating central column (21) arranged to fixably receive a mast (12) of the wind turbine (1), at least three floats (22), a float arm (23), each arm (23) extending in a radial elongation direction relative to the central column (21) and each arm (23) having a proximal end attached thereto. central column (21) and a distal end attached to said float (22), the arms (23) having an outer tubular element extending in the direction of elongation of the arm (23) and of curved section perpendicular to the direction of elongation, and an inner tubular member extending in the direction of elongation of the arm (23) and of polygonal section perpendicular to the direction of elongation, the polygonal section being inscribed in the curved section. The invention also relates to a floating wind generator comprising said device and a wind turbine.
    公开号:FR3052817A1
    申请号:FR1655714
    申请日:2016-06-20
    公开日:2017-12-22
    发明作者:Julien Gatesoupe；Pascal Heisel；Yves Marin
    申请人:CETEAL；Nass&wind Ind；
    IPC主号:
    专利说明:

    BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to the field of floating wind turbines. It relates more particularly to a floating device for supporting a wind turbine at sea and a floating wind ensemble comprising said device and a wind turbine. 2. Prior Art
    Floating wind assemblies comprising a floating device and an offshore wind turbine supported by the floating device are known. The wind turbine includes a mast and a turbine. Among these wind farms, there are for example HYWIND ™, WINDFLOAT ™, IDEOL ™.
    One of the main difficulties encountered by floating devices intended to support a wind turbine at sea is the ability to withstand the fatigue loads, due to the repetitive movements imposed on the wind turbine assembly, notably by the turbine, the wind and the swell, and the Extreme loads generated in case of high sea. A disadvantage of current floating devices is that they are designed in materials that are not particularly resistant to fatigue loads and extreme loads. Indeed, they are conventionally designed in metal and in particular in steel. The sizing of such structures to withstand the loads of fatigue and extreme loads mentioned above therefore leads to bulky structures, heavy and expensive.
    This results in a process of manufacturing these complex and expensive structures. In particular, given the size of these structures, large dry blocks are necessary for their manufacture.
    These various disadvantages in particular limit the power of the wind turbines that can support the floating devices of such sets.
    The current floating assemblies are penalized not only by the use of materials that are not particularly resistant to fatigue, but also by the choice of a geometry that does not optimally limit the generation of new loads acting on the surface. 'together. The charges generated are, for example, gravitational loads related to the inclination of the mast of the wind turbine with respect to the vertical direction, inertial loads related to the movements of the mast of the wind turbine around its rest position or loads resulting from the hydrostatic pressure exerted on the walls of the floating device.
    In addition, current floating wind turbine assemblies commonly use elements with solid volumes to withstand fatigue loads and extreme loads. However, these solid volumes do not contribute to the overall buoyancy of the system, which requires both increasing the sizing of the floating elements to increase their buoyancy and increasing the overall sizing of the system to support the bending efforts that occur. transmit between floating and non-floating elements. 3. Objectives of the invention The invention proposes a solution to overcome the aforementioned drawbacks.
    Thus, the primary objective of the invention is to withstand the fatigue loads and extreme loads that are exerted on the floating device while limiting the generation of new loads including the turbine. This is ensured by the use of several materials each used for their advantages from the mechanical point of view and placed at particular locations of the structure in order to resume under the best conditions the forces transmitted by both the turbine, through of the mast fixed on the floating device, and by the marine environment. This is also ensured by the geometry of the various elements so as to limit the generation of new charges and to confer neutral or positive buoyancy to the elements.
    Another objective of the invention is to maintain a similar behavior irrespective of the orientations of the environmental disturbances, such as wind, current or waves, thanks to symmetries of shapes opening up wider possibilities with respect to 'installation. The invention confers a flexibility vis-à-vis the installation sites all the more that it allows to obtain a floating wind ensemble with a draft relatively low compared to the existing which promotes the transport and installation of such a set.
    An object of the invention is also to obtain a floating device having a small footprint, particularly compared to existing devices for supporting high power turbines. As a corollary of this objective, the invention aims to provide a floating device rapidly adaptable to the use of turbines having a higher power than the turbines currently used in floating wind farms, without modifying the architecture of the floating device. 4. Summary of the invention
    The characteristics related to the orientation in space are given throughout the document when the floating assembly floats on an aquatic mass at rest, that is to say of horizontal surface in the absence of wind, current and of swell. The vertical direction is defined by the direction of gravity, the field of gravity pointing downwards. Any direction orthogonal to the vertical direction is horizontal. The invention relates to a floating device for supporting a wind turbine at sea and comprising: a floating central column arranged to fixably receive a mast of the wind turbine, at least three peripheral floats, an arm per float, each arm extending in a direction of elongation radial to the central column and each arm having a proximal end attached to the central column and a distal end attached to said float, the device being characterized in that the arms comprise: - an outer tubular member extending in the direction of elongation of the arm and of curved section perpendicular to the direction of elongation, and - an inner tubular member extending in the direction of elongation of the arm and polygonal section perpendicular to the direction of elongation, the polygonal section being inscribed in the curved section. The interlocking of the inner tubular element of polygonal section in the outer tubular element of curved section allows a good distribution of forces and therefore good mechanical strength. The internal tubular element, thanks to its polygonal section, makes it possible to recover the bending in the plane, generated by the thrust of the wind on the turbine, and the alternating bending in the plane, induced by the roll, pitch and heave movements. . The outer tubular element, thanks to its section delimited by a closed curve, makes it possible to transmit the external pressure forces in compression along the outer tubular element. In addition, the shell of the outer tubular member and the shell of the inner tubular member form a double shell, which reduces the risk of infiltration and thus increases the safety of the floating device. The hollow and voluminous character of the arms brings buoyancy.
    According to a particular embodiment, the arms comprise compartments capable of being filled at least partially with ballast so as to adjust the buoyancy of the arms in order to avoid the appearance of undesirable additional bending forces due to excessive differences in buoyancy.
    According to a particular embodiment, the floating device further comprises at least two pairs of adjacent arms, each connecting piece having a first and a second end respectively fixed near the distal ends of the first and second arms of said pair of adjacent arms. The connecting pieces provide mechanical continuity between the arms to limit off-plane moments generating deflected flexion.
    According to a particular embodiment, the arms extend horizontally. This embodiment is preferable especially when the waterline crosses the arm. Indeed, in this case, additional forces are likely to appear if the arms are not horizontal.
    According to a particular embodiment, radial planes being defined each by the direction of elongation of an arm and by a vertical direction, the device is arranged so that the radial planes are planes of symmetry of the device. This symmetrical configuration makes it possible to maintain a similar behavior irrespective of the orientations of the environmental disturbances, such as wind, current or waves, so as to widen the field of possible installation sites.
    According to a particular embodiment, the floating device comprises four peripheral floats. This number of four floats allows a good compromise between the bulk and the hydrostatic performance of the floating wind ensemble, that is to say it allows to have good buoyancy despite a relatively short arm length.
    According to a particular embodiment, the peripheral floats comprise internal partitions. The partitioning ensures the stability of the entire float in case of damage, for example with a compartment filled with water.
    According to a particular embodiment, the central column comprises a fastener comprising a hollow volume for receiving the mast of the wind turbine, the hollow volume being cylindrical or frustoconical so as to match the shape of the mast. The shape of the mast of the wind turbine is not standard, the fastener allows to adapt the same floating device on several types of wind turbine.
    According to a particular embodiment, the central column is hollow so as to have sufficient buoyancy to support the wind turbine. This makes it possible to avoid the occurrence of undesirable additional bending forces due to excessive differences in buoyancy.
    According to a particular embodiment, the central column has, horizontally, a polygonal section whose number of sides is equal to twice the number of arms so that the arms are respectively fixed to sides of the polygonal section not adjacent to each other. This geometry makes it possible to achieve a weight / volume ratio favoring the buoyancy of the central column.
    According to a particular embodiment, the floats comprise a frustoconical lower portion of vertical axis and a cylindrical upper portion of vertical axis. The shape of the floats provides a large volume of buoyancy and good mechanical resistance to hydrostatic forces. In particular, the main objective is to limit the movements, accelerations and forces on the turbine thanks to a significant damping.
    According to a particular embodiment, the floating device is made, at least partially, of reinforced concrete. Concrete has a very good resistance to fatigue and extreme environments. It also makes it possible to avoid stress concentration phenomena at the level of welds, in particular for complex connections of the "wolf's mouth" type, which are very expensive in steel. The concrete also makes it possible to produce elements having significant dimensions, especially as regards the floats. The large floats reduce the overall attitude of the whole while maintaining good buoyancy because they reduce the length of the arms. Concrete also has the advantage of being cheaper than steel in standard use.
    According to a particular embodiment, the floating device comprises steel portions, for example the reinforcing pieces. Steel withstands tensile forces unlike concrete so steel is particularly suitable for reinforcing parts that work mainly in tension. In addition, the steel being a relatively light material, it allows to limit the additional mass due to the reinforcing pieces.
    According to a particular embodiment, the floating device further comprises an anchoring system. The invention also relates to a floating wind turbine assembly comprising: - a device according to any one of the preceding claims, and - a wind turbine. 5. List of Figures Other features and innovative advantages will become apparent from the following description, provided for information only and not limiting, with reference to the accompanying drawings, in which: - Figure 1 shows a front view of a set According to the invention, FIG. 2 represents a side perspective view of the floating aeolian unit of FIG. 1; FIG. 3 represents a bottom perspective view of the floating aeolian assembly of FIGS. 2
    FIG. 4 represents a perspective view of a floating device according to the invention; FIG. 5 represents a bottom view of the floating device of FIG. 4; FIG. 6 represents an exploded and partial view of the floating device of FIGS. 4 and 5, - Figure 7 shows a vertical sectional view of an arm of the device of Figures 4 to 6, - Figures 8a and 8b show schematically the transmission of the bending forces of a wind turbine to an arm in a set Floating wind turbine according to the invention, - Figure 9 schematically shows the transmission of compression forces in an arm of a floating device according to the invention. 6. Detailed description
    FIGS. 1 to 3 show a floating wind generator according to the invention. The floating wind turbine unit comprises a wind turbine 1 and a floating device 2 intended to support the wind turbine 1. The wind turbine 1 comprises a turbine 11 and a mast 12 supporting the turbine 11. The turbine 11 is suitable for offshore and present use a power of several megawatts. Preferably, it is a turbine with horizontal and three-axis axis. The mast 12 consists of cylindrical elements advantageously made of steel without longitudinal stiffening. The upper portion of the mast 12 is arranged to receive the turbine 11.
    With reference to FIG. 4, the floating device 2 comprises a floating central column 21 arranged to receive the mast 12, at least three peripheral floats 22, a float arm 23 and advantageously at least two connecting pieces 24 per pair of arms 23 adjacent.
    Referring to Figure 6, the central column 21 comprises a trunk 211 having a right prism vertical generator form. The trunk 211 has a lower face 2111 and a lower face 2112 polygonal. The lower face 2111 and the lower face 2112 are horizontal. The lower face 2111 comprises a slab on which the base of the mast 12 of the wind turbine 1 rests. In addition, the central column 21 comprises a fastener 212 comprising a hollow volume 2120 intended to receive the mast 12 of the wind turbine 1 , the hollow volume 2120 being cylindrical or frustoconical so as to conform to the shape of the mast 12. The fixing piece 212 is preferably a steel piece fixed inside the central column 21. For example, the central column 21 being in concrete, the fastener 212 is taken in the concrete of the column. The fastener 212 is adapted to the wind turbine 1 that the floating device 2 is intended to receive. In contrast, the rest of the floating device 2 is designed to be able to receive a wide variety of wind turbines.
    The central column 21 is hollow to provide the buoyancy necessary to support the wind turbine 1. The central column 21 has compartments capable of being filled at least partially with ballast. The ballast is, for example, sea water or another solid, liquid or granular material, denser than seawater, allowing the mass of the entire system to be adjusted in order to adjust the draft. for dockside operations, transit operations or on-site installation. In the case of liquid ballast, suitable adjustment means are for example liquid pumping means for adding or removing ballast within compartments suitable for ballasting.
    According to a preferred embodiment, the central column 21 is made at least partially of reinforced concrete in order to withstand the cyclic fatigue stresses generated in particular by the movements of the wind turbine 1.
    According to a particular embodiment, the central column 21 is made at least partially of steel, although the steel is less resistant to fatigue than concrete.
    The peripheral floats 22 comprise a frustoconical lower portion 221 and a cylindrical upper portion 222. The frustoconical lower portion 221 and the cylindrical upper portion 222 extend along a vertical axis. Here, the vertical axis is an axis of symmetry of revolution of the floats. At the interface between the frustoconical lower portion 221 and the cylindrical upper portion 222, the diameter of the two portions is identical. The interface between the frustoconical lower portion 221 and the cylindrical upper portion 222 is materialized by a slab. The frustoconical portion flares downward so as to provide better hydrodynamic damping to improve the dynamic behavior of the platform. The lower base of the frustoconical portion is materialized by a slab. Preferably, in the frustoconical portion, the diameter of the lower base is greater than the height.
    The geometry of the floats 22 makes it possible to provide a large volume of buoyancy and a mechanical resistance to the hydrostatic forces. In a preferred embodiment, the waterline L is located at the cylindrical portion of the floats.
    The floats are dimensioned so that the natural periods of the floats in roll and pitch are beyond the periods of energy of the waves.
    The cylindrical upper portion 222 comprises a platform forming a flat surface intended to allow human intervention or attachment of equipment necessary for towing operations, installation, or maintenance for example.
    The floats 22 further comprise a partitioning device inside the upper and lower portions to ensure the stability of the entire float in case of damage, for example with a column filled with water.
    On the same principle as that of the central column 21, the floats 22 comprise compartments capable of being filled at least partially with ballast. The ballast is, for example, sea water or another solid, liquid or granular material, denser than seawater, allowing the mass of the entire system to be adjusted in order to adjust the draft. for dockside operations, transit operations or on-site installation. In the case of liquid ballast, suitable adjustment means are for example liquid pumping means for adding or removing ballast. The compartments for the ballast are located far from the axis of the float 22 and in the lower portion to contribute to the stability of the system by increasing its inertia in roll and pitch.
    In a preferred embodiment, the floats 22 are made at least partially of reinforced concrete to withstand the stresses from the wind turbine 1, the aquatic environment and the dynamics of the floating device 2.
    According to a particular embodiment, the floats 22 are made at least partially of steel.
    Preferably, the floating device 2 comprises between three and eight floats 22 and in particular four floats 22. The number of floats 22 is calculated to keep a relatively small footprint compared to floating devices intended to support high power turbines and to remain in a tilt range in operation and in extreme environment compatible with the use of existing turbines.
    The arms 23 extend in a direction of elongation radial relative to the central column 21 and each arm 23 has a proximal end attached to the central column 21 and a distal end attached to a float 22 associated with the arm 23. Referring in FIG. 7, the arms 23 furthermore comprise an outer tubular element 231 and an inner tubular element 232. The inner and outer tubular elements extend in the elongation direction of the arm 23. The outer tubular element 231 is curved section, here circular perpendicular to the direction of elongation. The inner tubular element 232 is of polygonal section, here rectangular perpendicular to the direction of elongation. The rectangular section is inscribed in the circular section, the vertices of the rectangular section being fixed to an inner wall of the circular section. The geometry corresponding to a rectangular section inscribed in a circular section is studied to take the efforts from the turbine and the marine environment. In addition, the shell of the outer tubular element 231 and the shell of the inner tubular element 232 form a double shell, which reduces the risk of infiltration and therefore increases the safety of the floating device 2. The internal tubular element 232, thanks to its rectangular section, allows to take up the bending in the plane, generated by the thrust of the wind on the blades of the turbine, and the bending alternated in the plane, induced by the movements of roll, pitch and heave. Indeed, the internal tubular element 232 of rectangular section has slabs located in particular in the extension of an upper portion and in the extension of a lower portion of the circular section of the arm 23 to ensure continuity in the transmission of forces, including bending moments transmitted from the wind turbine 1 to the arms 23. Figures 8a and 8b show that the thrust P generated by the thrust P of the wind on the blades of the turbine induces a bending moment Fc at the level of the central column 21. The bending moment Fc in the central column 21 is transmitted in the form of bending moments FB in the arms 23 having an elongation direction parallel to the thrust P. The bending moments FB in the arms are taken as CH stresses in the slab of the upper arm and in the form of CB stresses in the slab of the lower portion of the arm. The external tubular element 231, thanks to its curved section, makes it possible to take up the external compressive pressure forces generated by the aquatic medium. FIG. 9 shows that the external compressive pressure forces C are transmitted to the outer tubular element 231 in the form of peripheral stresses CP. The peripheral stresses CP in the outer tubular element 231 are then transmitted to the internal tubular element 232 in the form of internal stresses Ci.
    Alternatively, the curved section is elliptical and / or the polygonal section is triangular, pentagonal or hexagonal.
    In a preferred embodiment, the arms 23 have a cylindrical outer shape of revolution.
    In another embodiment, the arms 23 have a frustoconical outer shape.
    In a preferred embodiment, the arms 23 extend horizontally. The elongation axes of the arms 23 are thus coplanar.
    In another embodiment, the elongation axes of the arms 23 form generatrices of a cone of revolution whose apex is situated on the axis of the mast 12.
    The elongation direction of an arm 23 and the vertical direction define a radial plane. According to a preferred embodiment shown in FIG. 5, the device is arranged so that the radial planes are planes of symmetry of the device. In other words, the arms 23 are arranged in a star around the central column 21 in a regular manner, that is to say that the angle formed by the axes of elongation of two arms 23 of a pair successive arms 23 is the same regardless of the pair of arms 23 and is equal to 360 ° that divides the total number of arms 23. This symmetrical configuration makes it possible to maintain a similar behavior irrespective of the orientations of the environmental disturbances, such as the wind, current, or swell, to expand the range of possible installation sites. In this case, according to a particular embodiment, the turbine comprises a servo actuator which directs the turbine according to the direction of the wind.
    The interfaces between the arms 23 and the central column 21 are located in vertical planes. At the interface between an arm 23 and the central column 21, the section of the arm 23 is tangent to one side of the polygon that forms the lower face 2111 of the trunk 211 of the central column 21; the diameter of the section of the arm 23 is less than or equal to the distance between the lower face 2112 and the lower face 2111 of the trunk 211. The trunk 211 has, horizontally, a polygonal section whose number of sides is equal to twice the number of arms 23 so that the arms 23 are respectively attached to sides of the polygonal section not adjacent to each other. For example, when the floating device 2 comprises four floats 22 and therefore four arms 23, the lower face 2111 and the lower face 2112 of the trunk 211 are octagonal.
    Each arm 23 is attached to the frustoconical lower portion 221 of the float associated therewith. The interface between the arm 23 and the frustoconical lower portion 221 is in the shape of a wolf, according to a structure conventionally used in the field of piping. At the interface between the arm 23 and the frustoconical lower portion 221, the section of the arm 23 is tangent in the lower part to the base of the frustoconical lower portion 221 and in the upper part to the interface between the frustoconical lower portion 221 and the upper cylindrical portion 222. Thus, the transmission of forces is ensured between the arm 23 and the slab constituting the base of the frustoconical lower portion 221 and between the arm 23 and the slab constituting the interface between the frustoconical lower portion 221 and the portion cylindrical upper 222.
    The arms 23 are arranged to delimit a volume sufficient to have a positive buoyancy and are designed hollow. On the same principle as that of the central column 21 and the floats 22, the arms 23 comprise compartments able to be filled at least partially with ballast. The ballast is, for example, sea water or another solid, liquid or granular material, denser than seawater, allowing the mass of the entire system to be adjusted in order to adjust the draft. for dockside operations, transit operations or on-site installation. In the case of liquid ballast, suitable adjustment means are for example liquid pumping means for adding or removing ballast in said compartments.
    In a preferred embodiment, the arms 23 are completely immersed in operation so as to guarantee an acceptable behavior in terms of movements and forces under extreme conditions, that is to say when the wind turbine 1 is stopped. and in case of strong swell. According to another embodiment, the arms 23 are partially immersed.
    In a preferred embodiment, the arms 23 are made at least partially of reinforced concrete to better withstand the fatigue stresses and extreme loads from the turbine 11 and the aquatic environment.
    According to a particular embodiment, the arms 23 are made at least partially of steel.
    The connecting pieces 24 connect the arms 23 in pairs and extend horizontally. Each connecting piece 24 has a first and a second end respectively fixed near the distal ends of the first and second arms 23 of said pair of arms 23 adjacent. The connecting pieces 24 connecting the same pair of arms 23 are located in the same vertical plane. The connecting pieces 24 provide mechanical continuity between the arms 23 to limit off-plane moments generating deflected flexion. These connecting pieces 24 have a small section relative to the dimensions of the other elements.
    In a preferred embodiment, the connecting pieces 24 are made of steel because they work primarily in traction, but the steel withstands tensile forces unlike concrete.
    According to one embodiment, the floating device 2 comprises securing means. The securing means are a set of lines 30 connecting the platform to a fixed outer element, for example, the bottom of the aquatic mass on which the platform floats. The lines 30 comprise a first end connected to the floating device 2 at one or more points and a second end connected to the fixed outer element, for example by means of an anchor or a dead body. The lines 30 may consist of cables, chains or other flexible elements adapted to maintain in position a floating object subjected to drifting forces under the effect of the environment. According to particular embodiments, the lines 30 are fully or partially stretched vertical or oblique.
    In an alternative embodiment, the lines 30 are catenaries.
    According to one mode of use, the draft of the floating wind ensemble is small, for example of the order of ten meters not ballasted and fifteen meters ballasted, to facilitate the operations of towing and installation.
    In a variant, the draft is identical between the installation phase and the operation phase, which avoids ballasting / deballasting operations at the production site. The draft can nevertheless be adjusted by ballasting once at the production site. The invention is described in the foregoing by way of example. It is understood that one skilled in the art is able to achieve different embodiments of the invention, for example by combining the various characteristics above taken alone or in combination, without departing from the scope of the invention. .
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    Floating device (2) for supporting a wind turbine (1) at sea and comprising: a floating central column (21) arranged to fixably receive a mast (12) of the wind turbine (1), at least three floats (22); ) peripherals, one arm (23) per float, each arm (23) extending in a direction of elongation radial with respect to the central column (21) and each arm (23) having a proximal end attached to the central column (21) and a distal end attached to said float (22), the floating device (2) being characterized in that the arms (23) comprise: an outer tubular member (231) extending in the elongation direction of the arm (23) and of curved section perpendicular to the direction of elongation, and an inner tubular member (232) extending in the direction of elongation of the arm (23) and of polygonal section perpendicular to the direction of elongation, the polygonal section being inscribed in the secti we curve.
    [2" id="c-fr-0002]
    2. Floating device (2) according to claim 1 characterized in that it further comprises at least two connecting pieces (24) per pair of arms (23) adjacent, each connecting piece (24) having a first and a second ends respectively fixed near the distal ends of the first and second arms (23) of said pair of arms (23) adjacent.
    [3" id="c-fr-0003]
    Floating device (2) according to any one of the preceding claims, characterized in that the arms (23) extend horizontally.
    [4" id="c-fr-0004]
    4. Floating device (2) according to any one of the preceding claims characterized in that, radial planes being defined each by the direction of elongation of an arm (23) and by a vertical direction, the floating device (2 ) is arranged so that the radial planes are planes of symmetry of the floating device (2).
    [5" id="c-fr-0005]
    5. floating device (2) according to any one of the preceding claims characterized in that the central column (21) comprises a fastener (212) comprising a hollow volume (2120) for receiving the mast (12) of the wind turbine (1), the hollow volume (2120) being cylindrical or frustoconical so as to match the shape of the mast (12).
    [6" id="c-fr-0006]
    6. Floating device (2) according to any one of the preceding claims characterized in that the central column (21) has, horizontally, a polygonal section whose number of sides is equal to twice the number of arms (23) so that the arms (23) are respectively fixed to sides of the polygonal section not adjacent to each other.
    [7" id="c-fr-0007]
    7. Floating device (2) according to any one of the preceding claims characterized in that the floats (22) comprise a frustoconical lower portion (221) of vertical axis and a cylindrical upper portion (222) of vertical axis.
    [8" id="c-fr-0008]
    8. Floating device (2) according to any one of the preceding claims characterized in that it is made, at least partially, of reinforced concrete.
    [9" id="c-fr-0009]
    9. Floating device (2) according to any one of the preceding claims characterized in that it comprises steel portions.
    [10" id="c-fr-0010]
    10. A floating wind assembly comprising: a floating device (2) according to any one of the preceding claims, and a wind turbine (1).
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    同族专利:
    公开号 | 公开日
    US20190367136A1|2019-12-05|
    WO2017220878A1|2017-12-28|
    EP3472458A1|2019-04-24|
    KR20190027790A|2019-03-15|
    JP2019521043A|2019-07-25|
    TW201802351A|2018-01-16|
    FR3052817B1|2018-07-06|
    US10787233B2|2020-09-29|
    MA45499A|2019-04-24|
    KR102296183B1|2021-09-01|
    MA45499B1|2020-09-30|
    TWI722200B|2021-03-21|
    PT3472458T|2020-09-21|
    ES2822172T3|2021-04-29|
    EP3472458B1|2020-07-08|
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    法律状态:
    2017-05-30| PLFP| Fee payment|Year of fee payment: 2 |
    2017-12-22| PLSC| Search report ready|Effective date: 20171222 |
    2018-04-13| PLFP| Fee payment|Year of fee payment: 3 |
    2019-06-27| PLFP| Fee payment|Year of fee payment: 4 |
    2019-08-30| TP| Transmission of property|Owner name: CETEAL, FR Effective date: 20190724 |
    2020-06-29| PLFP| Fee payment|Year of fee payment: 5 |
    2021-06-28| PLFP| Fee payment|Year of fee payment: 6 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1655714A|FR3052817B1|2016-06-20|2016-06-20|FLOATING DEVICE SUPPORT FOR OFFSHORE WIND TURBINES AND FLOATING WINDING ASSEMBLY THEREFOR|
    FR1655714|2016-06-20|FR1655714A| FR3052817B1|2016-06-20|2016-06-20|FLOATING DEVICE SUPPORT FOR OFFSHORE WIND TURBINES AND FLOATING WINDING ASSEMBLY THEREFOR|
    JP2019520499A| JP2019521043A|2016-06-20|2017-05-29|Floating body device supporting an offshore wind turbine and corresponding floating wind turbine unit|
    US16/312,085| US10787233B2|2016-06-20|2017-05-29|Floating device supporting an offshore wind turbine, and corresponding floating wind turbine unit|
    PT177325099T| PT3472458T|2016-06-20|2017-05-29|Floating device supporting an offshore wind turbine, and corresponding floating wind turbine unit|
    EP17732509.9A| EP3472458B1|2016-06-20|2017-05-29|Floating device supporting an offshore wind turbine, and corresponding floating wind turbine unit|
    KR1020187037086A| KR102296183B1|2016-06-20|2017-05-29|Floating devices supporting offshore wind turbines and corresponding floating wind turbine units|
    ES17732509T| ES2822172T3|2016-06-20|2017-05-29|Offshore Wind Generator Support Floating Device and Corresponding Floating Wind Assembly|
    PCT/FR2017/051335| WO2017220878A1|2016-06-20|2017-05-29|Floating device supporting an offshore wind turbine, and corresponding floating wind turbine unit|
    MA45499A| MA45499B1|2016-06-20|2017-05-29|Offshore wind turbine support floating device and corresponding floating wind turbine assembly|
    TW106118616A| TWI722200B|2016-06-20|2017-06-06|Floating device supporting offshore wind turbine and corresponding floating wind power system|
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