• 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:
    A synchronous machine (100) according to the invention comprises a frame (110), a shaft (115), a main section (120) and an exciter section (125). The main section (120) has a stator winding (130) which is mounted on the frame, and a rotor winding (135) which is mounted on the shaft. The exciter section includes a transformer (140) and a rectifier (145). The transformer has a primary winding (140A) mounted on the frame and a secondary winding (140B) mounted on the shaft. The rectifier is mounted on the shaft and rectifies an output of the secondary winding to provide a rectified output to the rotor. A control unit (170) provides a high frequency control signal to the primary winding. This signal is magnetically coupled to the secondary winding, rectified, and then applied to the rotor to control the operation of the synchronous machine.
    公开号:FR3026576A1
    申请号:FR1557997
    申请日:2015-08-28
    公开日:2016-04-01
    发明作者:Lijun Gao；Matthew J Krolak；Shengyi Liu
    申请人:Boeing Co；
    IPC主号:
    专利说明:

    [0001] ENGINE EXCITATOR / COMMON GENERATOR SYNCHRONOUS MACHINE A synchronous machine is an electrical machine that can be used either as a synchronous motor (synchronous motor mode) or as a synchronous generator (synchronous generator mode). Typically, a synchronous machine has two separate and independent exciter field windings. In addition, conventionally, two separate and independent control units have been used, a control unit for the exciter field winding for the synchronous motor mode and another control unit for the field winding. exciter for the synchronous generator mode. The use of two exciter field windings and two control units makes the synchronous machine and the system in which it is used more complicated, heavier and less reliable. The two excitation components of a conventional synchronous machine can represent 20 to 30% of the total volume and the weight of the synchronous machine. Some conventional systems use only one reconfigurable field winding, but still use two separate and independent control units, which then use switches or contactors to connect the appropriate control unit to the field winding. Dual field windings, dual control units and / or switches and / or contactors increase the cost, weight, volume and complexity of the system, and have a negative effect on overall system reliability. U.S. Patent No. 5,770,909 to Rosen et al. discloses a synchronous motor-generator system that uses a rotary transformer. Conventional synchronous machines also use a low frequency excitation current and large field windings are used to avoid energy losses. These large-field windings substantially increase the amount and weight of costly copper used in the windings. In addition, with the conventional low frequency excitation current, the counter-electromotive force generated in the field windings is substantially affected by the rotor speed, and this can cause stability problems during the start-up process.
    [0002] The invention discloses a synchronous machine that can be used as a synchronous motor or as a synchronous generator. The synchronous machine has a frame, a shaft, a main section and an exciter section. The main section comprises a stator (a stator winding, which may be an armature winding) which is mounted on the frame, and a rotor (a rotor winding, which may be a field winding) which is mounted on the shaft the stator and the rotor being magnetically coupled to one another. The exciter section has a transformer and a rectifier. The transformer has a primary winding attached to the frame and a secondary winding attached to the shaft. The primary and secondary windings are distant from each other and magnetically coupled to each other. The rectifier is electrically connected to the secondary winding, is mechanically connected to the rotor, and rectifies an output of the secondary winding to provide a rectified output to the rotor. The primary winding and the secondary winding of the transformer are each in the form of a disk.
    [0003] A control unit provides a control signal to the primary winding to control the operation of the synchronous machine. In one embodiment, the primary winding has an inner radius and the disk defines a plane that is perpendicular to the shaft, and the secondary winding has an outer radius, which is smaller than the inner radius, so that the secondary winding is positioned inside the primary winding. In another embodiment, the primary winding is mounted to the frame at one end of the shaft, the primary winding disk defining a first plane that is perpendicular to the shaft, and the secondary winding is fixed at the shaft near one end of the shaft, the disk of the secondary winding defining a second plane which is perpendicular to the shaft, the second plane being parallel to the first plane and remote from it, the shaft does not does not enter the foreground, and the shaft has a channel in which electrical conductors are placed to connect the rectifier to at least one of the secondary winding or the rotor. The invention also discloses a method of manufacturing a synchronous machine 30 usable as a synchronous motor or synchronous generator. The method includes providing a frame, mounting a stator on the frame, providing a shaft that extends from at least one end of the frame; the mounting of a rotor on the shaft, the mounting of a primary winding of a transformer on the frame, the mounting of a secondary winding of the transformer on the shaft, away from the primary winding, but magnetically connected to it, fixing a rectifier to the shaft and the electrical connection of a rectifier input to the secondary winding and an output of the rectifier to the rotor. Either the secondary winding is mounted inside the primary winding, so that they are on the same plane, or the secondary winding is mounted facing the primary winding, so that they are in different plans. A channel is provided in the shaft so that electrical conductors can pass from the rectifier to the secondary winding and / or the rotor.
    [0004] Figure 1 is a diagram of an example of a synchronous machine. Fig. 2 is a diagram illustrating an exemplary embodiment of the synchronous machine. Fig. 3 is a diagram illustrating another exemplary embodiment of the synchronous machine.
    [0005] FIG. 1 is a diagram of an example of a synchronous machine 100. The synchronous machine 100 comprises a frame 110, a shaft 115, a main section 120 and an exciter section 125. The main section 120 comprises a stator 130 (a stator winding , which may be an armature winding) which is mounted on the frame, and a rotor 135 (a rotor winding, which may be a field winding) which is mounted on the shaft 115. Part or all of the frame 110 may be part of, or separate from, a housing that contains the synchronous machine 100. The exciter section 125 includes a transformer 140 and a rectifier 145. The transformer 140 has a primary winding 140A mounted on the frame 110 and a secondary winding 140B mounted on the shaft 115. The secondary winding 140B is remote from the primary winding 140A and is magnetically coupled to it. The rectifier 145 is electrically connected by a plurality of electrical conductors 137 to the secondary winding 140B, is electrically connected by a plurality of electrical conductors 142 to the rotor 135, and rectifies an output of the secondary winding 140B to provide a rectified output to the Rotor 135. For the sake of convenience and conciseness, "electrical conductors" and a "plurality of electrical conductors" are sometimes simply referred to as "conductors" herein. The rectifier 145 is attached to the shaft 115, either by being mounted on the shaft 115, or by another desired and appropriate technique, such as the inclusion of the rectifier 115 with the secondary winding of the transformer. 140. If desired, the output of secondary winding 140B and / or rectifier 145 may be filtered or smoothed before being applied to rotor 135. Synchronous machine 100 may also be considered to have a stator section 150 and a rotor section 155, the stator section 150 comprising the frame 110, the primary winding 140A and the stator 130 and the rotor section 155 including the shaft 115, the rotor 135, the secondary winding 140B and the rectifier 145. The lines Electrical connectors 165 connected to the stator 130 serve as input lines for supplying an electrical input voltage and power to the synchronous machine 100 when operating in the synchronous motor mode and serve as dotted lines. e output for providing an electrical output voltage and power from the synchronous machine 100 during operation in the synchronous generator mode.
    [0006] A control unit 170 monitors one or more parameters of the power lines 165 and provides an output control signal on the leads 180 to the primary winding 140A. The control unit 170 can monitor parameters such as, but not exclusively, the voltage, current, frequency, and / or phase on the power lines 165. The parameters that are monitored may depend in part on the fact that the machine 100 is used as an engine or as a generator. These input parameters may be filtered, if desired, to reduce the noise before they are supplied to the control unit 170. The control signal is an AC waveform voltage (AC voltage). , such as, but not limited to, a pulse width modulated (PWM) AC signal. The control signal preferably has a rectangular waveform, as provided by a pulse width modulated switching system, but may be a sine wave or other desired waveform. The control unit 170 controls at least one of a pulse width, a voltage (which may be a pulse voltage) or a frequency (which may be a pulse frequency) of the control signal. The control signal may be a plurality of pulses or a plurality of cycles of an AC signal, a mono pulse or a cycle of an AC signal, a portion of a cycle of a AC signal, or a combination of these. For example, depending on the input parameters monitored, the control signal may be two pulses or two cycles of an AC signal, may consist of 6-1 / 2 pulses or 6-1 / 2 cycles of a AC signal, or may be less than a full cycle of a CA signal. The pulses can be in the form of series, of variable lengths, with different numbers in different series, and / or with a variable spacing between the series. The control signal may be filtered, if desired, before being supplied to the primary winding 140A. The control signal is a "high frequency" control signal, i.e. it has a frequency that is greater than the input frequency (motor mode), i.e. the frequency of the input signal on the power lines 165, and greater than the output frequency (generator mode), i.e., the frequency of the output signal on the power lines 165. More preferably , the frequency of the control signal is at least several times greater than the frequency of the voltage on the power lines 165. Even more preferably, the frequency of the control signal is at least 10 times the frequency of the voltage on the electrical lines 165 to minimize the effects on the excitation caused by the rotational speed of the rotor 135. Higher frequencies can also be used. Lower frequencies may also be used, but the size, weight and cost of the windings 140A, 140B may increase when the frequency is lowered, and the coupling between the primary and secondary windings may be affected by the rotational speed of the windings. 'tree. In one implementation, the frequency of the control signal supplied to the transformer 140 is 10 kHz if the frequency of the voltage on the power lines 165 is 400 Hz. In addition, the use of such a higher frequency of the control signal allows the transformer 140 to use smaller windings, and less iron, than for the exciter armature windings of conventional systems. The control unit 170 can also monitor other parameters or aspects of the operation of the synchronous machine 100 such as, by way of example and not limit, the rotational speed, the angular position of the shaft, the changes inside of it, etc. For example, a shaft position encoder (not shown) may be connected to the shaft to provide the angular position of the shaft. The control unit 170 can then adjust the control signal on the leads 180 accordingly. For example, if the machine operates as a motor and the load is such that changes in the angular position of the shaft indicate that the motor may not be able to maintain synchronous operation, then the power supplied to the winding primary 140A, and therefore rotor 135, can be increased. As another example, if the machine operates as a generator and the output voltage on the lines 165 increases, then the power supplied to the primary winding 140A can be decreased. The control unit 170 can vary the power by adjusting, for example, the pulse width, the pulse repetition rate, the amplitude of the control signal on the conductors 180 and / or the pulse diagram ( for example, how many pulses are provided in a series of pulses, the time between each series of pulses, etc.). This synchronous machine design allows the use of a single compact high frequency exciter stage 125 for both the synchronous motor mode and the synchronous generator mode. As mentioned, the primary winding 140A and the secondary winding 140B are in a spaced relation; that is, they are not in contact with each other and the secondary winding 140B moves when the shaft 115 rotates while the primary winding 140A, mounted on the frame 110 , do not move. The control unit 170 provides the high frequency control signal (input voltage) to the primary winding 140A, which induces a high frequency AC output voltage on the secondary winding 140B. This high frequency AC output voltage is rectified by the rectifier 145 to supply a DC current (DC) to the rotor 135. The rectifier 145 may be, by way of non-limiting example, a full-wave rectifier or a bridge rectifier.
    [0007] The high frequency produced by the control unit 170 allows the use of a smaller transformer 140, thereby reducing the size of the exciter section 145 and also reducing the losses of copper and iron. The high frequency also allows a wider control bandwidth, which allows a better stability of the machine speed and a better control of the couple. This unique exciter section 145 also allows a simplified architecture of the machine, a reduced weight of the copper and / or iron used inside, a reduced volume and a reduced number of excitation sources (lower value of the components ). This unique high frequency exciter section 145 thus provides greater efficiency and reliability than the aforementioned conventional systems. As shown in FIG. 1, a single rotor 135 and a single control unit 170 are used for both the operation of the synchronous motor and the operation of the synchronous generator. The elimination of duplicate rotors and control units used in conventional designs reduces the volume, weight, and number of components of the synchronous machine 100. In addition, by using a high frequency AC input voltage to the transformer 140, the voltage supplied to the rotor 135 is more stable than in conventional synchronous machines. A more stable voltage to the rotor 135 improves the stability and control of the starting process of the synchronous machine 100. Fig. 2 is a diagram illustrating an exemplary embodiment of the synchronous machine 100 showing the frame 110, the shaft 115, the stator 130, the rotor 135, the windings of the transformer 140A, 140B, the rectifier 145 and the bearings 160A, 160B. Also shown are the conductors 180 which connect to the primary winding 140A through a hole, eyelet or other opening 110A, preferably, but not necessarily, sealed in the frame 110. Also shown are leads 137 and 142. For the sake of convenience and clarity of illustration, these leads 137 and 142 are shown as part of the shaft 115. In practice, however, these leads should preferably be mounted directly to the shaft 115 so to minimize the centrifugal forces on these conductors. They could also be placed in a groove (not shown) in the tree. The groove should be as shallow as possible so as to have the minimum effect on the strength and integrity of the shaft 115. If desired, the leads 137 and 142 could be placed in a shaft channel 115, as shown in Figure 3. In the embodiment of Figure 2, each transformer winding 140A, 140B is preferably in the form of a disk, which may have a width, a length, a depth , a cable size and a number of turns as suitable and appropriate as possible for a particular implementation. The primary winding 140A may be considered to be an "outer" winding and the secondary winding 140B may be considered to be an "inner" winding. The primary winding 140A has an inner radius 140A1 relative to the axis 115A of the shaft 115, and the secondary winding 140B has an outer radius 140B1 relative to the axis 115A of the shaft 115. The outer radius 140B1 is smaller than the inner radius 140A1, so that the winding 140B is fitted inside the winding 140A and is interior to it. The spacing between the windings 140A, 140B is small enough that the windings 140A, 140B are magnetically coupled to each other. Preferably, the windings 140A and 140B are substantially in the same plane 175. The windings 140A and 140B do not have to be exactly in the same plane 175, they can be slightly offset with respect to each other.
    [0008] The windings 140A and 140B are considered to be substantially in the same plane, even if they are offset with respect to each other, if the magnetic coupling between them is sufficient to provide adequate power and control to the rotor. The windings 140A and 140B are in a container, such as 140A2 and 140B2, respectively, to protect the windings and to hold the windings in place. The containers are preferably made of ferrite or other material to allow a closed path to the magnetic lines of force from the windings and to increase the magnetic coupling between the windings. The shaft 115 may also serve to concentrate the magnetic flux and increase the coupling if the shaft 115 is composed of or includes a ferromagnetic material, particularly if the containers are not made of a material that increases the coupling. Although the frame 110 is illustrated as a stepped frame, where a part of the frame has a different radius of another part of the frame, this is not a requirement, the frame can have a different shape, so to have the same radius over its entire length, as shown in Figure 3. In addition, although the frame 110 is shown as being at one end only, i.e. the end 110B is open and the 110C end is closed, so that the shaft 115 extends only from the end 110B of the frame, this is not a requirement. The end 110C may also be an open end so that the shaft 115 may extend both from the end 110B and the end 110C. In addition, although the exciter section 125 is shown as being on the closed end 110C of the frame 110, it could instead be on the open end 110B of the frame 110.
    [0009] FIG. 3 is a diagram illustrating another exemplary embodiment of the synchronous machine 100. In this embodiment, the transformer windings 140A, 140B are not "internal" and "external" windings, they are parallel windings. or opposite but they are not in the same plane. On the contrary, the winding 140A is in the plane 175A, and the winding 140B is in the plane 175B so that they face each other. They are again preferably in the form of a disc. In this embodiment, the leads 137 of the secondary winding 140B to the rectifier 145 are at least partially within a channel or hollow section 115B in the shaft 115 so that the leads 137 do not interfere with the 160B bearing. In an alternative embodiment, the rectifier 145 may be, if desired, positioned outside the bearing 160B, i.e., between the bearing 160B and the end 110C. In this alternative embodiment, the leads 137 may or may not be in the channel 115B, but the leads 142 of the rectifier 145 to the rotor winding 135 must be at least partially inside the channel 115B in the channel 115B. shaft 115 so that the conductors 142 do not interfere with the bearing 160B. Although the rectifier 145 is shown in FIGS. 2 and 3 as being separate from the secondary winding 140B, this is not a requirement. For example, the rectifier 145 could be recessed into the container 140B2 or inside thereof. In addition, the design of the channel 115B may be used with the embodiment of FIG. 2 if, for example, it is desirable for the exciter section 125 to be between the bearing 160B and the end 110C.
    [0010] The embodiment of Figure 2, in addition to the advantages and benefits described above, is also advantageous in another respect. If the synchronous machine 100 is used with, for example, a screw drive, then the compressive and tensile forces on the shaft 115 can slightly shift the shaft 115 along its length, i.e., bring it closer. or away from an end 110B or 110C, but an offset has little effect on the magnetic coupling between the windings 140A and 140B. The embodiment of FIG. 3, in addition to the advantages and benefits described above, is also advantageous in another respect: the reduced centrifugal forces exerted on the windings 140A and 140B. Since the windings 140A and 140B are closer to the axis 115A, the centrifugal forces exerted on them will be less than the forces exerted in the embodiment of FIG. 2. This reduction in centrifugal forces may be significant for a synchronous machine 100 which must operate at a speed expressed in revolutions per minute extremely high, as it may be the case for some synchronous machines of smaller size. Thus, the use of a transformer with a single exciter stage 140, instead of the use of two transformers with two separate excitation stages or reconfigurable windings, reduces the weight of copper and iron in the machine, and reduces the number of switches and contactors needed when two transformers are used. In addition, only one exciting source, the control unit 170, is used, rather than two or more excitation sources. The single control unit 170 controls the synchronous machine 100 for both the motor and generator operating mode, simplifies the control design and reduces the number of components. A high frequency control signal, instead of a low frequency control signal, allows better control. A method of operating the synchronous machine as a synchronous motor or as a synchronous generator includes (1) applying a first AC voltage to the primary winding and applying a second AC voltage to the stator to drive the synchronous machine to function as a synchronous motor providing output torque, or (2) applying a first AC voltage to the primary winding and applying an input torque to the shaft to drive the synchronous machine to function as a synchronous generator to provide an output voltage. At least one of a voltage, a frequency or a duty cycle of the first AC voltage is adjusted to control an output torque during operation of the synchronous machine such as a synchronous motor or an output voltage when operating as a synchronous generator.
    [0011] Further, the disclosure includes embodiments in accordance with the following clauses: Clause 1. Synchronous machine (100) comprising: a frame (110), a shaft (115) extending from at least one end of the frame; a main section (120), comprising: a stator winding (130) mounted on the frame; and a rotor winding (135), mounted on the shaft, and remote from the stator winding and magnetically coupled thereto; and an exciter section (125), comprising: a transformer (140) having a primary winding (140A) and a secondary winding (140B) magnetically coupled to each other, each winding being in the form of a disk the secondary winding having an outer radius and being attached to the shaft, the primary winding having an inner radius and being mounted on the frame, the outer radius being less than the inner radius, the secondary winding being positioned at the inside the primary winding, a rectifier (145), fixed to the shaft, for rectifying an output of the secondary winding and providing a rectified output to the rotor winding, and a plurality of electrical conductors (137, 142) for connecting the output of the secondary winding to the rectifier, and for connecting the rectified rectifier output to the rotor winding.
    [0012] Clause 2. Synchronous machine (100) according to clause 1 and further comprising a control unit (170) for providing a control signal to the primary winding (140A). Clause 3. Synchronous machine (100) according to clause 2 and further comprising a control unit (170) for controllably providing a control signal to the primary winding (140A), and wherein the control unit makes varying at least one of a service cycle, a frequency or an output voltage of the control signal. Clause 4. Synchronous machine (100) according to clause 2 wherein: the synchronous machine functions as a synchronous generator providing an output voltage having an output frequency when an input torque is applied to the shaft (115); and the control unit (170) causes the control signal to have a frequency at least several times greater than the output frequency of the output voltage. Clause 5. Synchronous machine (100) according to clause 2 wherein: the synchronous machine functions as a synchronous motor when an input voltage having an input frequency is applied to the stator winding (130); and the control unit (170) causes the control signal to have a frequency at least several times greater than the input voltage frequency of the input voltage. Clause 6. Synchronous machine (100) according to clause 1 in which the stator winding (130) is a field winding and the rotor winding (135) is an armature winding. Clause 7. Synchronous machine (100) according to clause 1 in which the synchronous machine functions as a synchronous generator when an input torque is applied to the shaft (115). Clause 8. Synchronous machine (100) according to clause 1 in which the synchronous machine functions as a synchronous motor when an input voltage is applied to the stator winding (130). Clause 9. Synchronous machine (100) comprising: a frame (110); a shaft (115) extending from at least one end of the frame and having a channel (115B) formed therein; a main section (120), comprising: a stator winding (130) mounted on the frame; and a rotor winding (135), mounted on the shaft, and remote from the stator winding and magnetically coupled thereto; and an exciter section (125) comprising: a transformer (140) having a primary winding (140A) and a secondary winding (140B) remote from each other and magnetically coupled to each other, each winding being in the form of a disk, the primary winding being mounted on the frame at one end of the shaft, the disk of the primary winding defining a first plane (175A) which is perpendicular to the shaft, the secondary winding being attached to the shaft near one end of the shaft, the secondary winding disk defining a second plane (175B) which is perpendicular to the shaft, the second plane being parallel to the foreground and remote from him, the tree not entering the foreground; a rectifier (145), mounted on the shaft, for rectifying an output of the secondary winding and providing a rectified output to the rotor winding, the rectifier being electrically connected; first conductors (142) for electrically connecting the rectified rectifier output to the rotor winding; and second conductors (137) for electrically connecting the output of the secondary winding to the rectifier; wherein at least a portion of the first conductors or at least a portion of the second conductors are within the channel (115B) of the shaft (115).
    [0013] Clause 10. Synchronous machine (100) according to clause 9 and further comprising a control unit (170) for providing a control signal to the primary winding (140A). Clause 11. Synchronous machine (100) according to Clause 9 in which the stator winding (130) is a field winding and the rotor winding (135) is an armature winding. Clause 12. Synchronous machine (100) according to clause 9 in which the synchronous machine functions as a synchronous generator when an input torque is applied to the shaft (115).
    [0014] Clause 13. Synchronous machine (100) according to clause 9 in which the synchronous machine functions as a synchronous motor when an input voltage is applied to the stator winding (130). Clause 14. Synchronous machine (100) according to clause 9 and further comprising a control unit (170) for providing a control signal to the primary winding (140A), and wherein the control unit varies from to least one of a service cycle, a frequency or an output voltage of the control signal. Clause 15. Synchronous machine (100) according to clause 9 and further comprising a control unit (170) for providing a control signal to the primary winding (140A), and wherein: the synchronous machine functions as a synchronous generator providing an output voltage having an output frequency when an input torque is applied to the shaft (115); and the control unit causes the control signal to have a frequency at least several times greater than the output frequency of the output voltage. Clause 16. Synchronous machine (100) according to clause 9 and further comprising a control unit (170) for providing a control signal to the primary winding (140A), and wherein: the synchronous machine functions as a synchronous motor when an input voltage having an input frequency is applied to the stator winding (130); and the control unit causes the control signal to have a frequency at least several times greater than the input voltage frequency of the input voltage. Clause 17. Synchronous machine (100) according to clause 9 wherein at least a portion of the first conductors are within the channel (115B) of the shaft (115).
    [0015] Clause 18: A method of manufacturing a synchronous machine (100) that can be used either as a synchronous motor or as a synchronous generator, the method comprising: providing a frame (110); mounting a stator winding (130) on the frame; providing a shaft (115) extending from at least one end of the frame; mounting a rotor winding (135) on the shaft, the rotor winding being remote from the stator winding and magnetically coupled thereto; mounting a primary winding (140A) of a transformer on the frame; mounting a secondary winding (140B) of the transformer on the shaft, the secondary winding being remote from the primary winding and magnetically coupled thereto; attaching a rectifier (145) to the shaft, connecting an input of the rectifier to the secondary winding, and connecting an output of the rectifier to the rotor winding; and wherein either: the primary winding has an inner radius, the secondary winding has an outer radius, the outer radius is smaller than the inner radius, and the secondary winding is positioned within the primary winding; or the primary winding and the secondary winding are each in the form of a disk, the disk of the primary winding defines a first plane (175A), the secondary winding is mounted on one end of the shaft, the disk of the secondary winding defines a second plane (175B), the first plane and the second plane are parallel but different, and the shaft does not enter the first plane. Clause 19. A method according to clause 18, wherein: the primary winding (140A) has an inner radius, the secondary winding (140B) has an outer radius, the outer radius is less than the inner radius, and the secondary winding (140B) is positioned within the primary winding (140A); and wherein in addition the primary winding (140A) and the secondary winding (140B) are each in the form of a disk, the disk of the primary winding defines a plane, and the disk of the secondary winding is substantially in this same plane. Clause 20. A method according to clause 18, wherein: the primary winding (140A) and the secondary winding (140B) are each in the form of a disk, the disk of the primary winding (140A) defines a foreground (175A), the secondary winding (140B) is mounted on one end of the shaft (115), the disk of the secondary winding (140B) defines a second plane (175B), the first plane and the second plan are parallel but different, and the shaft (115) does not enter the foreground; and wherein in addition the shaft (115) has a channel (115B), and the secondary winding (140B) is connected to the rectifier by placing conductors in the channel (115B). "Approximately", "approximately", "substantially" and similar terms, as used herein, are relative terms and indicate that although two values may not be identical, their difference is such that apparatus or method still give the result indicated or desired, or that the operation of a device or method is not adversely affected to the point of not being able to perform the function for which it is intended.
    [0016] The subject matter described herein is for the purpose of illustration, teaching, suggestion and description and not limitation or restriction. Combinations and variations of the illustrated embodiments are contemplated, described herein and set forth in the claims. Various modifications and changes may be made to the subject matter described herein without strictly following the embodiments and applications illustrated and described, and without departing from the scope of the following claims. The object described above is for illustrative purposes only and should not be construed as limiting. Various modifications and changes may be made to the subject matter described herein without following the exemplary embodiments and applications illustrated and described herein. Although the object presented herein has been described in a language specific to the components, features, and operations, it should be understood that the appended claims are not necessarily limited to the specific components, features, or operations described herein. In contrast, specific components, features, or operations are disclosed as exemplary embodiments of the claims.
    权利要求:
    Claims (11)
    [0001]
    REVENDICATIONS1. A synchronous machine (100) comprising: a frame (110); a shaft (115) extending from at least one end of the frame; a main section (120), comprising: a stator winding (130) mounted on the frame; and a rotor winding (135), mounted on the shaft, and remote from the stator winding and magnetically coupled thereto; and an exciter section (125), comprising: a transformer (140) having a primary winding (140A) and a secondary winding (140B) magnetically coupled to each other, each winding being in the form of a disk, the secondary winding having an outer radius and being fixed on the shaft, the primary winding having an inner radius and being mounted on the frame, the outer radius being less than the inner radius, the secondary winding being positioned on the inside Primary winding a rectifier (145), attached to the shaft, for rectifying an output of the secondary winding and providing a rectified output to the rotor winding; and a plurality of electrical conductors (137, 142) for connecting the output of the secondary winding to the rectifier, and for connecting the rectified rectifier output to the rotor winding.
    [0002]
    The synchronous machine (100) of claim 1 and further comprising a control unit (170) adapted to provide a control signal to the primary winding (140A).
    [0003]
    The synchronous machine (100) according to claim 2 and further comprising a control unit (170) for controllably providing a control signal to the primary winding (140A), and wherein the control unit varies at least one of a duty cycle, a frequency or an output voltage of the control signal.
    [0004]
    The synchronous machine (100) of claim 2 wherein: the synchronous machine operates as a synchronous generator providing an output voltage having an output frequency when an input torque is applied to the shaft (115); and the control unit (170) causes the control signal to have a frequency at least several times greater than the output frequency of the output voltage.
    [0005]
    The synchronous machine (100) of claim 2 wherein: the synchronous machine operates as a synchronous motor when an input voltage having an input frequency is applied to the stator winding (130); and the control unit (170) causes the control signal to have a frequency at least several times greater than the input voltage frequency of the input voltage.
    [0006]
    The synchronous machine (100) of claim 1 wherein the stator winding (130) is a field winding and the rotor winding (135) is an armature winding.
    [0007]
    The synchronous machine (100) of claim 1 wherein the synchronous machine operates as a synchronous generator when an input torque is applied to the shaft (115).
    [0008]
    The synchronous machine (100) of claim 1 wherein the synchronous machine operates as a synchronous motor when an input voltage is applied to the stator winding (130).
    [0009]
    A method of manufacturing a synchronous machine (100) operable either as a synchronous motor or as a synchronous generator, the method comprising: providing a frame (110); mounting a stator winding (130) on the frame; providing a shaft (115) extending from at least one end of the frame; mounting a rotor winding (135) on the shaft, the rotor winding being remote from the stator winding and magnetically coupled thereto; mounting a primary winding (140A) of a transformer on the built; mounting a secondary winding (140B) of the transformer on the shaft, the secondary winding being remote from the primary winding and magnetically coupled thereto; attaching a rectifier (145) to the shaft, connecting an input of the rectifier to the secondary winding, and connecting an output of the rectifier to the rotor winding; and wherein either: the primary winding has an inner radius, the secondary winding has an outer radius, the outer radius is smaller than the inner radius, and the secondary winding is positioned within the primary winding; either the primary winding and the secondary winding are each in the form of a disk, the disk of the primary winding defines a first plane (175A), the secondary winding is mounted on one end of the shaft, the disk of the secondary winding defines a second plane (175B), the first plane and the second plane are parallel but different, and the shaft does not enter the first plane.
    [0010]
    The method of claim 9, wherein: the primary winding (140A) has an inner radius, the secondary winding (140B) has an outer radius, the outer radius is less than the inner radius, and the secondary winding (140B) ) is positioned within the primary winding (140A); and wherein in addition the primary winding (140A) and the secondary winding (140B) are each in the form of a disk, the disk of the primary winding defines a plane, and the disk of the secondary winding is substantially in this same plane.
    [0011]
    The method of claim 9, wherein: the primary winding (140A) and the secondary winding (140B) are each in the form of a disk, the disk of the primary winding (140A) defines a foreground (175A), the secondary winding (140B) is mounted on one end of the shaft (115), the disk of the secondary winding (140B) defines a second plane (175B), the first plane and the second plan are parallel but different, and the shaft (115) does not enter the foreground; andwherein the shaft (115) further comprises a channel (115B), and the secondary winding (140B) is connected to the rectifier by placing conductors in the channel (115B).
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    同族专利:
    公开号 | 公开日
    CA2898137A1|2016-03-26|
    BR102015021114A2|2016-03-29|
    RU2698102C2|2019-08-22|
    US20160094114A1|2016-03-31|
    US20190058382A1|2019-02-21|
    DE102015116141A1|2016-03-31|
    US10784757B2|2020-09-22|
    RU2015129652A|2017-01-24|
    RU2015129652A3|2019-03-15|
    US10305356B2|2019-05-28|
    CN105471173A|2016-04-06|
    FR3026576B1|2019-07-05|
    CN105471173B|2019-09-17|
    JP2016073189A|2016-05-09|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE2524285A1|1974-06-12|1976-01-02|Nasa|BRUSHLESS DC MOTOR|
    EP0645874A1|1993-09-29|1995-03-29|ABB Management AG|Current conduction of the excitation of an electrical machine|
    US5770909A|1996-12-13|1998-06-23|Rosen Motors, L.P.|Wound rotor synchronous motor-generator and field control system therefor|
    AU708569B3|1997-10-30|1999-08-05|Kalam, Professor A.|Induction of power from a stationary object to a rotary object with automatic and sensorless speed and position detection|
    US6483218B1|1999-05-20|2002-11-19|Alex Petrinko|Brushless electric exciter for dynamoelectric machines|
    US20060038405A1|2004-08-17|2006-02-23|Mingzhou Xu|Hybrid gas turbine engine starter-generator|
    DE102010063734A1|2010-12-21|2012-06-21|Siemens Aktiengesellschaft|Electrical machine e.g. electromotor, for generating electrical power, has exciter including primary coil and secondary coil that is firmly connected with shaft, and electrically connected with excitation winding over rectifier circuit|
    US2722652A|1950-04-27|1955-11-01|Keefe & Merritt Company O|Excitation system for electrical machines|
    US3162829A|1958-11-14|1964-12-22|Philips Corp|Ferromagnetic pot-core assembles|
    DE1150445B|1961-09-21|1963-06-20|Licentia Gmbh|Arrangement of semiconductor rectifiers in the hollow rotor shaft of a brushless synchronous machine|
    US3614593A|1970-05-06|1971-10-19|Motorola Inc|Rotary transformer for alternator|
    US3845369A|1973-05-10|1974-10-29|Westinghouse Electric Corp|Starting control for brushless synchronous motors|
    US3943278A|1974-08-22|1976-03-09|Stanford Research Institute|Surface deformation gauging system by moire interferometry|
    US4093869A|1976-04-13|1978-06-06|Westinghouse Electric Corp.|Quadrature axis field brushless exciter|
    JPS53131411A|1977-04-22|1978-11-16|Hitachi Ltd|Brushless electric rotary machinery|
    US4210857A|1978-04-19|1980-07-01|Sheller-Globe Corporation|Field exerting and regulator circuit for a brushless alternator|
    US4289989A|1979-12-10|1981-09-15|Marathon Electric Manufacturing Corp.|Brushless exciter rotor mounting|
    JPS57199462A|1981-06-01|1982-12-07|Hitachi Ltd|Alternating current generator|
    US4625160A|1984-12-17|1986-11-25|Sundstrand Corporation|Variable speed constant frequency generating system|
    US4743777A|1986-03-07|1988-05-10|Westinghouse Electric Corp.|Starter generator system with two stator exciter windings|
    US4772802A|1987-08-19|1988-09-20|Sundstrand Corporation|Starting/generating system|
    US4937723A|1989-05-15|1990-06-26|Sundstrand Corporation|VSCF system with an overload protection|
    US4982123A|1989-11-17|1991-01-01|Sunstrand Corporation|Integrated exciter generator and rotating transformer|
    JPH05940B2|1989-11-30|1993-01-07|Mitsubishi Electric Corp|
    US5068590A|1989-12-20|1991-11-26|Sundstrand Corporation|Brushless generator having AC excitation in generating and starting modes|
    DE3943278A1|1989-12-29|1991-07-04|Bosch Gmbh Robert|Alternator for motor vehicle - has single diode and buffer capacitor between rotating generator winding and excitation winding of claw-pole rotor|
    US5334898A|1991-09-30|1994-08-02|Dymytro Skybyk|Polyphase brushless DC and AC synchronous machines|
    JPH07106131B2|1992-08-15|1995-11-15|株式会社トーファー|Fried dough pressing device|
    US5418446A|1993-05-10|1995-05-23|Hallidy; William M.|Variable speed constant frequency synchronous electric power generating system and method of using same|
    US5493200A|1993-05-12|1996-02-20|Sundstrand Corporation|Control for a brushless generator|
    US5594322A|1993-05-12|1997-01-14|Sundstrand Corporation|Starter/generator system with variable-frequency exciter control|
    US5581168A|1993-05-12|1996-12-03|Sundstrand Corporation|Starter/generator system with DC link current control|
    US5585709A|1993-12-22|1996-12-17|Wisconsin Alumni Research Foundation|Method and apparatus for transducerless position and velocity estimation in drives for AC machines|
    US6101084A|1997-02-12|2000-08-08|Rakov; Mikhail A.|Capacitive rotary coupling|
    RU2127939C1|1997-08-19|1999-03-20|Предприятие "Технократ"|End-mounted composite generator|
    US20020166324A1|1998-04-02|2002-11-14|Capstone Turbine Corporation|Integrated turbine power generation system having low pressure supplemental catalytic reactor|
    CA2351895C|2000-06-30|2009-12-15|General Electric Company|Slip-ring mounting assembly for high-power rotary current collector system|
    DE10107577A1|2001-02-17|2002-09-26|Bosch Gmbh Robert|Rotary joint|
    US6906479B2|2002-08-06|2005-06-14|Honeywell International, Inc.|Gas turbine engine starter generator with multiple windings on each exciter stator pole|
    US6809496B2|2002-09-16|2004-10-26|Honeywell International Inc.|Position sensor emulator for a synchronous motor/generator|
    US6847194B2|2002-09-20|2005-01-25|Honeywell International Inc.|Electric start for a prime mover|
    US6933704B2|2002-10-11|2005-08-23|Siemens Westinghouse Power Corporation|Slip-inducing rotation starting exciter for turbine generator|
    US6998726B2|2002-12-10|2006-02-14|Honeywell International Inc.|Method and system for providing single-phase excitation techniques to a start exciter in a starter/generator system|
    DE10259068A1|2002-12-17|2004-07-15|Siemens Ag|Double-fed asynchronous machine without slip ring|
    US7122994B2|2003-08-27|2006-10-17|Honeywell International Inc.|Control apparatus for a starter/generator system|
    US6844707B1|2003-12-30|2005-01-18|Pacific Scientific/Electro Kinetics Division|AC/DC brushless starter-generator|
    US7154249B2|2005-02-17|2006-12-26|Teleflex Canada Incorporated|Energy discharge apparatus|
    DE102005047451A1|2005-09-30|2007-04-12|Siemens Ag|synchronous machine|
    US7301311B2|2006-02-22|2007-11-27|Honeywell International, Inc.|Brushless starter-generator with independently controllable exciter field|
    US7508086B2|2006-03-24|2009-03-24|General Electric Company|Aircraft engine starter/generator and controller|
    US7388300B2|2006-09-20|2008-06-17|Honeywell International, Inc.|Starter-generator operable with multiple variable frequencies and voltages|
    US7400056B2|2006-09-29|2008-07-15|Honeywell International Inc.|Engine starter-generator optimized for start function|
    FR2911917B1|2007-01-31|2013-05-17|Hispano Suiza Sa|DISTRIBUTED GAS TURBINE GENERATOR-STARTER ARCHITECTURE|
    US7514806B2|2007-06-05|2009-04-07|Honeywell International Inc.|Engine start system with quadrature AC excitation|
    US20080315730A1|2007-06-25|2008-12-25|Waddell Simon L|High speed generator rotor field coil lead retention system|
    US7915869B2|2008-04-01|2011-03-29|Honeywell International Inc.|Single stage starter/generator with rotor quadrature AC excitation|
    US7872384B2|2008-09-18|2011-01-18|Siemens Energy, Inc.|Shaft cover structure for use in an exciter|
    CN101924440B|2010-08-11|2014-12-10|哈尔滨理工大学|Synchronous motor brushless excitation device realized by adopting switching power supply|
    US8542085B2|2011-02-28|2013-09-24|GM Global Technology Operations LLC|High frequency rotary transformer for synchronous electrical machines|
    GB201112247D0|2011-07-15|2011-08-31|Wind Technologies Ltd|Brushless doubly fed machines|
    EP2551999A1|2011-07-27|2013-01-30|Siemens Aktiengesellschaft|Electric machine with excitation without slip ring|
    DE102012006559A1|2012-04-02|2013-10-02|Johann Lasslop Gmbh|Electric machine e.g. drive motor of motor vehicle, has power transformer for energy and power transmission according to principle of disc transformer in such a way that disc transformer transfers electrical energy to rotor|
    US9543876B2|2013-06-20|2017-01-10|Hamilton Sundstrand Corporation|Three phase flux switching generator in a three stage wound field synchronous machine|
    US8928293B1|2013-08-02|2015-01-06|Hamilton Sundstrand Corporation|Systems for wound field synchronous machines with zero speed rotor position detection during start for motoring and improved transient response for generation|
    US9041232B2|2013-10-11|2015-05-26|General Electric Company|Electric generator system|
    US9561867B2|2013-10-11|2017-02-07|The Boeing Company|Modular equipment center lightning threat reduction architecture|
    US9413162B2|2013-10-11|2016-08-09|The Boeing Company|Modular equipment center distributed independent protections|
    US9676351B2|2013-10-11|2017-06-13|The Boeing Company|Modular equipment center solid state primary power switching network|
    US9793046B2|2013-10-24|2017-10-17|Rosemount Aerospace Inc.|Rotating transformers for electrical machines|
    JP6121875B2|2013-10-30|2017-04-26|株式会社東芝|Generator|
    GB201400702D0|2014-01-16|2014-03-05|Rolls Royce Plc|Rectifier diode fault detection in brushless exciters|
    US9209741B2|2014-02-24|2015-12-08|The Boeing Company|Method and system for controlling synchronous machine as generator/starter|
    US9525376B2|2014-05-13|2016-12-20|Gbox, Llc|Wound field synchronous machine with resonant field exciter|
    US10305356B2|2014-09-26|2019-05-28|The Boeing Company|Synchronous machine with common motor/generator exciter stage|US10305356B2|2014-09-26|2019-05-28|The Boeing Company|Synchronous machine with common motor/generator exciter stage|
    AT517397B1|2015-07-07|2017-10-15|Ge Jenbacher Gmbh & Co Og|Arrangement with a synchronous generator and an asynchronous machine|
    US10547269B2|2018-05-17|2020-01-28|The Boeing Company|Variable frequency independent speed motor|
    KR102310629B1|2019-01-24|2021-10-07|전북대학교산학협력단|A field excitation system and method for a wound rotor synchronous generator|
    DE102020206998A1|2019-06-19|2020-12-24|Universität Stuttgart, Körperschaft Des Öffentlichen Rechts|Method for increasing the efficiency of an energy transmission device, energy transmission device and use of an electrically conductive material|
    CN110474506B|2019-09-27|2020-06-09|哈尔滨工业大学|Brushless self-excitation magnetic pulse generator|
    US11146200B2|2020-03-10|2021-10-12|The Boeing Company|Variable frequency independent speed motor control based on flux estimate|
    CN112018983B|2020-09-05|2021-06-08|苏州讯如电子科技有限公司|Permanent magnet auxiliary brushless alternating synchronous motor|
    RU2757212C1|2021-01-25|2021-10-12|Открытое акционерное общество "Электроагрегат"|Synchronous machine with a common excitation system when operating in the generator/motor mode|
    CN113394749A|2021-06-29|2021-09-14|内蒙古电力有限责任公司内蒙古电力科学研究院分公司|Loss-of-field and loss-of-step protection checking method based on real-time operation information|
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    US14/498,186|US10305356B2|2014-09-26|2014-09-26|Synchronous machine with common motor/generator exciter stage|
    US14/498186|2014-09-26|
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