CN112653307A - Double-layer direct-drive wind driven generator - Google Patents

Double-layer direct-drive wind driven generator Download PDF

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Publication number
CN112653307A
CN112653307A CN201910956449.8A CN201910956449A CN112653307A CN 112653307 A CN112653307 A CN 112653307A CN 201910956449 A CN201910956449 A CN 201910956449A CN 112653307 A CN112653307 A CN 112653307A
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CN
China
Prior art keywords
layer
generator
bearing
magnetic suspension
electromagnet
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Pending
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CN201910956449.8A
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Chinese (zh)
Inventor
吕民东
毛凯
韩树春
李云钢
翟茂春
李萍
胡良辉
谭浩
王慕昊
高天宇
陈慧星
周伟
胡道宇
张泉
邹玲
龚珺
刘坤
高文轶
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Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
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Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
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Application filed by Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute filed Critical Casic Feihang Technology Research Institute of Casia Haiying Mechanical and Electronic Research Institute
Priority to CN201910956449.8A priority Critical patent/CN112653307A/en
Publication of CN112653307A publication Critical patent/CN112653307A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/09—Structural association with bearings with magnetic bearings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Wind Motors (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

The invention relates to the technical field of wind power generation, and discloses a double-layer direct-drive wind driven generator. The generator comprises an inner-layer generator structure, an outer-layer generator structure, an inner-layer magnetic suspension bearing, an outer-layer magnetic suspension bearing and a mechanical bearing, wherein the inner-layer generator structure comprises an inner stator and an outer rotor, the outer-layer generator structure comprises an outer stator and an inner rotor, the inner-layer magnetic suspension bearing comprises an inner electromagnet and an inner armature, the outer-layer magnetic suspension bearing comprises an outer electromagnet and an outer armature, the inner-layer magnetic suspension bearing and the outer magnetic suspension bearing are both coupled with the mechanical bearing to jointly support a generator main shaft, the inner electromagnet and the inner armature are matched to form a bearing magnetic loop and generate electromagnetic force, and the outer electromagnet and the outer armature are matched to form the bearing magnetic loop. Therefore, the power generation capacity of the generator can be improved, unbalanced magnetic pull force can be offset, and the problem that radial deviation of a moving shaft and a fixed shaft of the double-layer generator far away from a fixed constraint end is large is solved.

Description

Double-layer direct-drive wind driven generator
Technical Field
The invention relates to the technical field of wind power generation, in particular to a double-layer direct-drive wind driven generator.
Background
The wind power generator is an electric power device which converts wind energy into mechanical work, drives a rotor to rotate and finally outputs alternating current. Wind power generators can be classified into a double-fed type and a direct-drive type. Compared with a double-fed wind driven generator, the direct-drive wind driven generator drives the motor and the impeller in a direct connection mode, and traditional components such as a gear box are omitted. The direct-drive wind driven generator has the advantage of using direct drive energy, a gearbox structure in a double-fed wind driven generator system is omitted, the number of transmission parts of the generator is reduced, and the abrasion speed is reduced. Because the gear box is a part which is easy to overload and early damage in the megawatt wind driven generator, the direct-drive wind driven generator without the gear box has the advantages of high efficiency, low noise, long service life, small unit volume, low operation and maintenance cost and the like at low wind speed.
The traditional direct-drive wind driven generator is of a single-layer structure and is divided into a movable shaft and a fixed shaft. The moving shaft is in a cup-shaped structure, the permanent magnet of the generator is fixedly arranged on the inner side surface of the moving shaft, and the stator coil is fixed on the fixed shaft.
However, the moving shaft of the generator is connected with the fixed shaft through a mechanical bearing on one side, and the other side is in a cantilever structure. The structural design has the problem of lower rigidity of the rotor of the generator far away from the supporting end. The air gap eccentricity phenomenon may occur due to machining and assembling errors of a stator and a rotor of the generator, bending of a main shaft of the rotor, abrasion of a bearing or unbalance of the rotor. When the generator operates, due to the action of unbalanced magnetic pull force of the generator, the eccentric fault of a moving shaft of the generator is aggravated, the moving shaft of the generator is caused to deform, noise and vibration of the generator set are caused, bearing abrasion is accelerated, and the service life of the generator is shortened.
Disclosure of Invention
The invention provides a double-layer direct-drive wind driven generator which can solve the technical problems of large air gap eccentricity between a stator and a rotor of a generator and short service life of the generator in the prior art.
The invention provides a double-layer direct-drive wind driven generator, which comprises an inner layer generator structure, an outer layer generator structure, an inner layer magnetic suspension bearing, an outer layer magnetic suspension bearing and a mechanical bearing, wherein the inner layer generator structure comprises an inner stator arranged on an inner side branch of a fixed shaft and an outer rotor arranged on an outer side branch of a movable shaft and corresponding to the inner stator, the outer layer generator structure comprises an outer stator arranged on an outer side branch of the fixed shaft and an inner rotor arranged on an outer side branch of the movable shaft and corresponding to the outer stator, the inner layer magnetic suspension bearing comprises an inner layer electromagnet arranged on the inner side branch of the fixed shaft and an inner layer armature arranged on the outer side branch of the movable shaft and corresponding to the inner layer electromagnet, the outer layer magnetic suspension bearing comprises an outer layer electromagnet arranged on the outer side branch of the fixed shaft and an outer layer armature arranged on the outer side branch of the movable shaft and corresponding to the outer layer electromagnet, the inner magnetic suspension bearing and the outer magnetic suspension bearing are coupled with the mechanical bearing to jointly support a main shaft of the generator, the inner electromagnet is matched with the inner armature to form a bearing magnetic loop and generate electromagnetic force, and the outer electromagnet is matched with the outer armature to form the bearing magnetic loop and generate electromagnetic force.
Preferably, the inner magnetic suspension bearing is arranged at a position far away from the fixed end of the inner generator structure, and the outer magnetic suspension bearing is arranged at a position far away from the fixed end of the outer generator structure.
Preferably, the inner layer electromagnet and the outer layer electromagnet are respectively provided with an electromagnetic coil.
Preferably, an inner ring of the mechanical bearing is fixed on an inner side branch of the moving shaft, an outer ring of the mechanical bearing is fixed on an inner side branch of the fixed shaft, the moving shaft is connected with the fan blade, and the fixed shaft is connected with the tower.
Preferably, the mechanical bearing is a rolling bearing.
Preferably, the double-layer direct-drive wind driven generator further comprises a detection device, a controller and a power amplifier, wherein the detection device detects the position of the generator rotor and outputs a position signal to the controller, the controller calculates the current value of the corresponding electromagnet according to the position signal and outputs the current value to the power amplifier, and the power amplifier outputs the corresponding current to the electromagnetic coil of the corresponding electromagnet according to the current value so as to adjust the electromagnetic force of the corresponding electromagnet.
Preferably, the detection device is a displacement sensor.
Preferably, the maximum electromagnetic force generated by the inner electromagnet is greater than the maximum unbalanced magnetic pulling force of the inner generator structure, and the maximum electromagnetic force generated by the outer electromagnet is greater than the maximum unbalanced magnetic pulling force of the outer generator structure.
By the technical scheme, the inner-layer generator, the outer-layer generator and the inner-layer magnetic suspension bearing can be arranged, and the inner-layer generator and the outer-layer generator can generate electricity simultaneously, so that the generating capacity of the generators can be improved, and the generating benefit can be increased; can provide the flexible support (auxiliary stay generator rotor) for the generator moving axis through outer magnetic suspension bearing, offset unbalanced magnetic pull, solve double-deck generator moving axis and dead axle and keeping away from the great problem of the radial skew of fixed about end (promptly, reduce the radial skew between the generator stator rotor, reduce the radial clearance between the stator rotor), reduce magnetic suspension bearing's vibration, improve mechanical bearing's life, improve the structural rigidity of double-deck generator complete machine.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural view illustrating a double-layer direct-drive type wind power generator according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an inner magnetic suspension bearing structure according to an embodiment of the invention;
fig. 3 shows a structural diagram of an outer layer magnetic suspension bearing according to an embodiment of the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Fig. 1 shows a schematic structural diagram of a double-layer direct-drive wind turbine according to an embodiment of the present invention.
Fig. 2 shows a schematic structural diagram of an inner layer magnetic suspension bearing according to an embodiment of the invention.
Fig. 3 shows a structural diagram of an outer layer magnetic suspension bearing according to an embodiment of the invention.
As shown in fig. 1, an embodiment of the present invention provides a double-layer direct-drive wind power generator, wherein the generator may include an inner layer generator structure 1, an outer layer generator structure 2, an inner layer magnetic suspension bearing 3, an outer layer magnetic suspension bearing 4 and a mechanical bearing 5, the inner layer generator structure 1 includes an inner stator disposed on an inner branch of a fixed shaft 7 and an outer rotor disposed on an outer branch of a movable shaft 6 and corresponding to the inner stator, the outer layer generator structure 2 includes an outer stator disposed on an outer branch of the fixed shaft 7 and an inner rotor disposed on an outer branch of the movable shaft 6 and corresponding to the outer stator, the inner layer magnetic suspension bearing 3 includes an inner layer electromagnet (inner magnetic suspension bearing stator) disposed on an inner branch of the fixed shaft 7 and an inner layer armature (outer magnetic suspension bearing rotor) disposed on an outer branch of the movable shaft 6 and corresponding to the inner layer electromagnet, the outer layer magnetic suspension bearing 4 comprises an outer layer electromagnet (an outer magnetic suspension bearing stator) arranged on an outer side branch of the fixed shaft 7 and an outer layer armature (an inner magnetic suspension bearing rotor) arranged on an outer side branch of the moving shaft 6 and corresponding to the outer layer electromagnet, the inner layer magnetic suspension bearing 3 and the outer layer magnetic suspension bearing 4 are coupled with the mechanical bearing 5 to jointly support a main shaft of the generator, the inner layer electromagnet is matched with the inner layer armature to form a bearing magnetic loop and generate electromagnetic force, and the outer layer electromagnet is matched with the outer layer armature to form the bearing magnetic loop and generate the electromagnetic force.
That is, the inner layer generator structure 1 is an inner stator and an outer rotor structure, the outer layer generator structure 2 is an inner rotor and an outer stator structure, and rotor parts of the two layers of generator structures are jointly installed on a movable shaft structure. The inner magnetic suspension bearing 3 is an inner magnetic suspension bearing stator and an outer magnetic suspension bearing rotor structure (shown in figure 2), the outer magnetic suspension bearing 4 is an inner magnetic suspension bearing rotor and an outer magnetic suspension bearing stator structure (shown in figure 3), and the rotor parts of the two magnetic suspension bearings are jointly installed on a movable shaft structure.
Wherein, the inner magnetic suspension bearing 3 and the outer magnetic suspension bearing 4 are both active magnetic suspension bearings.
By the technical scheme, the inner-layer generator, the outer-layer generator and the inner-layer magnetic suspension bearing can be arranged, and the inner-layer generator and the outer-layer generator can generate electricity simultaneously, so that the generating capacity of the generators can be improved, and the generating benefit can be increased; can provide the flexible support (auxiliary stay generator rotor) for the generator moving axis through outer magnetic suspension bearing, offset unbalanced magnetic pull, solve double-deck generator moving axis and dead axle and keeping away from the great problem of the radial skew of fixed about end (promptly, reduce the radial skew between the generator stator rotor, reduce the radial clearance between the stator rotor), reduce magnetic suspension bearing's vibration, improve mechanical bearing's life, improve the structural rigidity of double-deck generator complete machine.
In addition, because the magnetic suspension bearing is not in direct contact with the shaft, the abrasion between metals is avoided, the abrasion and noise caused by the high-speed operation of the generator to the bearing of the generator can be avoided, and the service life of the generator can be prolonged.
According to an embodiment of the invention, the inner magnetic suspension bearing 3 may be arranged at a position of the inner generator structure 1 away from the fixed end, and the outer magnetic suspension bearing 4 may be arranged at a position of the outer generator structure 2 away from the fixed end.
That is, the inner magnetic bearing is disposed at a distance from the fixed end of the inner generator, and the outer magnetic bearing is disposed at a distance from the fixed end of the inner generator, for example, to the right of the inner generator and the outer generator as shown in fig. 1.
It will be understood by those skilled in the art that the illustration of FIG. 1 is merely exemplary and not intended to limit the present invention.
According to an embodiment of the present invention, the inner layer electromagnet and the outer layer electromagnet may be respectively provided with an electromagnetic coil.
According to an embodiment of the present invention, an inner ring of the mechanical bearing may be fixed on an inner branch of the moving shaft 6, an outer ring of the mechanical bearing may be fixed on an inner branch of the fixed shaft 7, the moving shaft 6 may be connected with a fan blade, and the fixed shaft 7 may be connected with a tower.
According to an embodiment of the invention, the mechanical bearing 5 may be a rolling bearing.
It should be understood by those skilled in the art that the above-described rolling bearing is merely an example, and the present invention is not limited thereto.
According to an embodiment of the present invention, the double-layer direct-drive wind turbine generator may further include a detection device 8, a controller 9, and a power amplifier 10, wherein the detection device 8 may detect a position of a rotor of the generator and output a position signal to the controller 9, the controller 9 may calculate a current value of a corresponding electromagnet according to the position signal and output the current value to the power amplifier 10, and the power amplifier 10 may output a corresponding current to an electromagnetic coil of the corresponding electromagnet according to the current value (i.e., may provide a current required for generating an electromagnetic force for the electromagnet), so as to adjust the electromagnetic force of the corresponding electromagnet.
Wherein the detecting means detecting the position of the generator rotor may comprise detecting the position of an outer rotor of the inner generator structure and detecting the position of an inner rotor of the outer generator structure. Correspondingly, the electromagnet corresponding to the outer rotor can be adjusted according to the position of the outer rotor; likewise, the electromagnet corresponding to the inner rotor can be adjusted according to the position of the inner rotor.
That is, the current in the electromagnet can be adjusted in real time through a feedback control mode to realize the adjustment of the electromagnetic force of the electromagnet, so that the electromagnetic force can be ensured to be equal to the eccentric magnetic pull force of the generator in real time and opposite in direction.
The control algorithm for the controller to calculate the current value required by the electromagnetic force generated by the corresponding electromagnet according to the position signal may be any appropriate algorithm in the prior art, and the detailed description of the present invention is omitted herein in order not to obscure the present invention.
For example, the controller 9 may be a DSP, an FPGA, or the like, but the present invention is not limited thereto.
According to an embodiment of the invention, the detection means 8 may be a displacement sensor.
According to one embodiment of the present invention, the maximum electromagnetic force generated by the inner electromagnets is greater than the maximum unbalanced magnetic pulling force of the inner generator structure 1, and the maximum electromagnetic force generated by the outer electromagnets is greater than the maximum unbalanced magnetic pulling force of the outer generator structure 2.
Therefore, the magnetic suspension bearing can restrain the generator rotor in the air gap between the moving shaft and the fixed shaft, and the phenomenon that the moving shaft generates obvious radial deviation due to the action of unbalanced magnetic pull force is avoided. That is, it may be better ensured that the magnetic bearing may pull the rotor of the generator back to the equilibrium position.
As can be seen from the above embodiments, the double-layer direct-drive wind turbine generator described in the above embodiments of the present invention improves the power generation capability of the generator to the maximum extent under the condition of the minimum change of the moving axis, and increases the power generation benefit; the unbalanced magnetic pull force of a generator system is overcome through the inner magnetic suspension bearing and the outer magnetic suspension bearing, and the influence of the unbalanced magnetic pull force of the generator on the radial offset between the movable shaft and the fixed shaft is reduced, so that the efficiency of the wind driven generator can be improved, the vibration of the magnetic suspension bearing is reduced, and the service lives of the generator and the mechanical bearing are prolonged.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A double-layer direct-drive wind driven generator is characterized by comprising an inner layer generator structure (1), an outer layer generator structure (2), an inner layer magnetic suspension bearing (3), an outer layer magnetic suspension bearing (4) and a mechanical bearing (5), wherein the inner layer generator structure (1) comprises an inner stator arranged on an inner side branch of a fixed shaft (7) and an outer rotor arranged on an outer side branch of a movable shaft (6) and corresponding to the inner stator, the outer layer generator structure (2) comprises an outer stator arranged on the outer side branch of the fixed shaft (7) and an inner rotor arranged on the outer side branch of the movable shaft (6) and corresponding to the outer stator, the inner layer magnetic suspension bearing (3) comprises an inner layer electromagnet arranged on the inner side branch of the fixed shaft (7) and an inner layer armature arranged on the outer side branch of the movable shaft (6) and corresponding to the inner layer electromagnet, outer magnetic suspension bearing (4) are in including setting up outer electro-magnet on the outside branch of dead axle (7) and setting are in the outer armature that corresponds with outer electro-magnet on the outside branch of moving axis (6), inlayer magnetic suspension bearing (3) with outer magnetic suspension bearing (4) all with mechanical bearing (5) coupling supports the generator main shaft jointly, inlayer electro-magnet with inlayer armature cooperation forms bearing magnetic circuit and produces the electromagnetic force, outer electro-magnet with outer armature cooperation forms bearing magnetic circuit and produces the electromagnetic force.
2. The double-layer direct-drive wind generator according to claim 1, wherein the inner magnetic suspension bearing (3) is arranged at a position of the inner generator structure (1) far from a fixed end, and the outer magnetic suspension bearing (4) is arranged at a position of the outer generator structure (2) far from a fixed end.
3. The double-layer direct-drive wind driven generator according to claim 2, wherein the inner-layer electromagnet and the outer-layer electromagnet are respectively provided with an electromagnetic coil.
4. The double-layer direct-drive wind power generator according to claim 1, wherein an inner ring of the mechanical bearing is fixed on an inner branch of the movable shaft (6), an outer ring of the mechanical bearing is fixed on an inner branch of the fixed shaft (7), the movable shaft (6) is connected with a fan blade, and the fixed shaft (7) is connected with a tower.
5. The double-layer direct-drive wind generator according to claim 4, wherein the mechanical bearing (5) is a rolling bearing.
6. The double-layer direct-drive wind power generator according to claim 3, further comprising a detection device (8), a controller (9) and a power amplifier (10), wherein the detection device (8) detects a position of a rotor of the generator and outputs a position signal to the controller (9), the controller (9) calculates a current value of a corresponding electromagnet according to the position signal and outputs the current value to the power amplifier (10), and the power amplifier (10) outputs a corresponding current to an electromagnetic coil of the corresponding electromagnet according to the current value so as to adjust the electromagnetic force of the corresponding electromagnet.
7. The double-layer direct-drive wind power generator according to claim 6, wherein the detection device (8) is a displacement sensor.
8. The double-layer direct-drive wind power generator according to claim 6, wherein the maximum electromagnetic force generated by the electromagnet at the inner layer is greater than the maximum unbalanced magnetic pulling force of the inner layer generator structure (1), and the maximum electromagnetic force generated by the electromagnet at the outer layer is greater than the maximum unbalanced magnetic pulling force of the outer layer generator structure (2).
CN201910956449.8A 2019-10-10 2019-10-10 Double-layer direct-drive wind driven generator Pending CN112653307A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101360914A (en) * 2005-10-13 2009-02-04 斯维公司 Direct-drive generator/motor for a windmill/hydropower plan /vessel where the generator/motor is configured as a hollow profile and a method to assemble such a windmill/hydropower plant
CN101711309A (en) * 2007-04-12 2010-05-19 斯维公司 Turbine rotor and power plant
CN101964564A (en) * 2010-10-15 2011-02-02 浙江工业大学 Vertical type magnetic suspension flywheel battery adopting thin spoke flywheel
CN201956848U (en) * 2011-03-10 2011-08-31 山东瑞其能电气有限公司 Permanent magnet synchronous wind generator with multi-layer windings
CN109826867A (en) * 2019-02-20 2019-05-31 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） A kind of hybrid magnetic suspension bearing system and generator
CN210839213U (en) * 2019-10-10 2020-06-23 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） Double-layer direct-drive wind driven generator

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101360914A (en) * 2005-10-13 2009-02-04 斯维公司 Direct-drive generator/motor for a windmill/hydropower plan /vessel where the generator/motor is configured as a hollow profile and a method to assemble such a windmill/hydropower plant
CN101711309A (en) * 2007-04-12 2010-05-19 斯维公司 Turbine rotor and power plant
CN101964564A (en) * 2010-10-15 2011-02-02 浙江工业大学 Vertical type magnetic suspension flywheel battery adopting thin spoke flywheel
CN201956848U (en) * 2011-03-10 2011-08-31 山东瑞其能电气有限公司 Permanent magnet synchronous wind generator with multi-layer windings
CN109826867A (en) * 2019-02-20 2019-05-31 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） A kind of hybrid magnetic suspension bearing system and generator
CN210839213U (en) * 2019-10-10 2020-06-23 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） Double-layer direct-drive wind driven generator

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Application publication date: 20210413

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