CN103269140A - Birotor permanent magnet motor applied to wind power generation - Google Patents
Birotor permanent magnet motor applied to wind power generation Download PDFInfo
- Publication number
- CN103269140A CN103269140A CN2013101595062A CN201310159506A CN103269140A CN 103269140 A CN103269140 A CN 103269140A CN 2013101595062 A CN2013101595062 A CN 2013101595062A CN 201310159506 A CN201310159506 A CN 201310159506A CN 103269140 A CN103269140 A CN 103269140A
- Authority
- CN
- China
- Prior art keywords
- rotor
- stator
- power generation
- core
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention discloses a birotor permanent magnet motor applied to wind power generation. Rotors of the birotor permanent magnet motor comprise an inner rotor and an outer rotor. A stator comprises a stator core and a stator winding, wherein the inner rotor and the outer rotor share the stator, and the stator winding is wound on the stator core. The inner rotor is arranged inside the stator, an inner air gap is formed between the inner rotor and the stator, and the inner rotor comprises an inner rotor permanent magnet and an inner rotor core. The outer rotor is arranged outside the stator, an outer air gap is formed between the outer rotor and the stator, and the outer rotor comprises an outer rotor core and an outer rotor permanent magnet of which the surface is attached to the inner surface of the outer rotor core. The inner rotor and the outer rotor are fixedly connected and rotate synchronously. The magnetizing direction of the inner rotor permanent magnet and the magnetizing direction of the outer rotor permanent magnet are opposite. An inner magnetic circuit and an outer magnetic circuit are parallel and are closed through the stator core shared by the inner magnetic circuit and the outer magnetic circuit. The back-to-back annular winding can effectively reduce copper loss of the motor, enlarge an effective air gap area of the motor, and strengthen power generation capacity of a wind driven generator at a low wind speed.
Description
Technical field
The present invention relates to a kind of birotor permanent magnetic generator, belong to the new forms of energy technical field of wind power generation.
Background technology
Along with a large amount of consumption of fossil energy and the quick growth of economy and population, the deterioration of shortage of energy sources and environment is serious day by day, and this has greatly promoted development and the application of countries in the world to the renewable energy power generation technology.And wind energy with inborn advantages in aspect such as its memory space, distributed areas and pollutions, more and more is subjected to the attention of countries in the world as one of energy that cleans most in the regenerative resource, has become green novel energy source with fastest developing speed.
In the variable-speed constant-frequency wind power generation system of existing main flow, the double-fed generator group can directly be exported the constant frequency three-phase alternating current, the capacity of rotor-side pwm converter only is about 1/3rd of unit capacity, and unit can realize that flexibility is incorporated into the power networks, the flexible power factor under its effect.But unit exists electric brush slip ring and high-speed gear box, greatly increased maintenance cost, has also limited it and has been used in wind field under the adverse circumstances; Secondly double-fed generator must reach the high speed power frequency by the gear box speedup, reduced the utilization ratio of wind energy, and be subjected to the restriction of slip power and pwm converter capacity, the range of speeds of machine operation is limited, the range of speeds has limited the Wind Power Utilization of double feedback electric engine to low wind speed about 1:2.
Direct drive permanent magnetic synchronous wind generating system has saved electric brush slip ring and high-speed gear box, structure is simpler, this has greatly reduced the maintenance cost of unit, reliability and the mechanical efficiency of unit have also been improved simultaneously, but no matter the permanent magnetism unit is that converter or rectification+BOOST+ converter are realized being incorporated into the power networks back-to-back, the capacity of its converter is total power, and electrical loss is compared also corresponding increase of double-fed with the cooling loss, and huge volume weight has also increased the difficulty of transportation and lifting.Because the voltage of the synchronous unit output of direct-driving permanent magnetic changes with wind speed, need to add behind the rectification output DC DC-DC boost link or directly adopt the rectification of total power converter after could be incorporated into the power networks by the total power converter, if utilize the electric energy that sends when hanging down wind speed, DC-DC booster circuit or total power rectification will inevitably be higher with the step-up ratio of converter.Consider the cost of converter capacity and unit, do not go to consider to utilize the wind energy of hanging down under the wind speed usually.As seen, present double-fed and direct-drive permanent-magnetism unit all are not suitable for abundant, the long-term not too high zone of mean wind speed of wind resource.
Stator double winding induction machine wind generator system has increased by a cover control winding at the stator winding of squirrel-cage induction machine, the control that it is meritorious and idle separately, can obtain higher-quality electric energy, under the regulating action of control winding side pwm converter, by power winding side rectification output constant high pressure direct current, the converter capacity is about 1/3rd of unit capacity, can widen hanging down the utilization of wind speed wind energy by the innovation of topology and the optimization of system.But this wind-powered electricity generation machine set system more complicated, in order to reduce the capacity of pwm converter, added the AC excitation capacitance group at the power winding, and in order to improve current waveform, improve the efficient of generating, control winding side has added the filter inductance of volume heaviness again, and the operational reliability of whole unit and the engineering practice of unit do not have further research and checking.
Summary of the invention
At wind-driven generator above shortcomings in the prior art, the invention provides and a kind ofly have dual-rotor structure, adopt back-to-back Circular Winding, be applicable to the birotor permanent magnetic wind-driven generator that directly drives or partly directly drive occasion, compare with traditional permanent magnet synchronous wind generator, same capability lower volume weight is littler, cost is lower, and more can utilize the wind energy under the low wind speed.
Technical scheme of the present invention is:
A kind of dual rotor permanent magnetic motor that is applied to wind power generation comprises rotor and stator, and described rotor comprises internal rotor and external rotor; Described stator comprises stator core and stator winding, and described stator is shared by internal rotor and external rotor, and described stator winding is wound on the stator core; Described internal rotor is arranged at stator interior, air gap in forming between internal rotor and the stator, and described internal rotor comprises internal rotor permanent-magnetic body and internal rotor iron core; Described external rotor is arranged at the stator outside, forms outer air gap between external rotor and the stator, and described external rotor comprises that outer rotor iron core and face are affixed on the external rotor permanent magnet body of outer rotor iron core inner surface; Described internal rotor is fixedlyed connected with external rotor, and internal rotor and external rotor rotate synchronously; The magnetizing direction of described internal rotor permanent-magnetic body and external rotor permanent magnet body is opposite, inside and outside magnetic path parallel connection, and interior external magnetic circuit is by stator common iron core closure.
As a further improvement on the present invention, described stator winding adopts Circular Winding back-to-back.
As a further improvement on the present invention, described stator core is cup-like structure.
As a further improvement on the present invention, the surfaces externally and internally of described stator core has groove, and stator winding is embedded in the groove of stator core.
As a further improvement on the present invention, the surfaces externally and internally of described stator core is smooth surface, and the stator winding uniform ring is around on the stator core.
As a further improvement on the present invention, described internal rotor permanent-magnetic dignity is affixed on the outer surface of internal rotor iron core, is embedded in the inside of internal rotor iron core in perhaps.
As a further improvement on the present invention, described stator winding becomes an integral body by the thermosetting resin cementation.
The invention has the beneficial effects as follows:
A kind of dual rotor permanent magnetic motor that is applied to wind power generation of the present invention, its stator winding adopts Circular Winding back-to-back, has increased the winding wire number of turns of motor.Adopt Circular Winding back-to-back, motor end winding length can not become along with the increase of motor diameter greatly, can increase the power density that the motor fineness ratio improves motor.Compare other forms of winding construction, the tip lengths of Circular Winding is less relatively back-to-back, can effectively improve motor copper cash utilance, reduce winding resistance, can effectively reduce the copper loss of motor, improve the generating efficiency of motor, also can further reduce the material cost of motor.
A kind of dual rotor permanent magnetic motor that is applied to wind power generation of the present invention, the winding back-to-back of its stator and two gap structure, increased the effective air gap area of motor, increased the winding wire number of turns of motor, make motor under lower rotating speed, also can produce bigger electromotive force, strengthened the generating capacity of wind-driven generator under low wind speed.The raising of power of motor density makes that for the identical generator of power the required permanent magnet of birotor permanent magnetic generator is lower than common permanent magnet generator, has reduced the permanent magnet cost, and volume weight is also littler.Inner and outer rotors is opposite with radially magnetic pull direction between the stator, the part of can cancelling out each other, and this is more conducive to the stable operation of generator.
Description of drawings
Fig. 1 is the cross-sectional view of the face subsides formula dual rotor permanent magnetic motor of Circular Winding back-to-back of slotting;
Fig. 2 is the slotless cross-sectional view of the face subsides formula dual rotor permanent magnetic motor of Circular Winding back-to-back;
Fig. 3 is the cross-sectional view of the built-in type dual rotor permanent magnetic motor of Circular Winding back-to-back of slotting;
Fig. 4 is the slotless cross-sectional view of the built-in type dual rotor permanent magnetic motor of Circular Winding back-to-back.
Among the figure: 1, stator core; 2, stator winding; 3, interior air gap; 4, internal rotor permanent-magnetic body; 5, internal rotor iron core; 6, outer air gap; 7, outer rotor iron core; 8, external rotor permanent magnet body.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
A kind of dual rotor permanent magnetic motor that is applied to wind power generation of the present invention is applicable to wide wind speed range, and its structure comprises motor stator and motor inner and outer rotors.Motor stator comprises stator core 1 and stator winding 2; The motor internal rotor comprises internal rotor iron core 5 and internal rotor permanent-magnetic body 4, and motor outer rotor comprises outer rotor iron core 7 and external rotor permanent magnet body 8; Air gap 3 in having between motor internal rotor and stator has outer air gap 6 between external rotor and the stator.Form the inside and outside air gap of motor between inner and outer rotors and the stator respectively, the formation of two air gaps has increased the effective air gap area of motor.
Stator core and rotor core are made of silicon steel laminations or other permeability magnetic materials, and be identical with the common electric machine manufacturing process.
External rotor permanent magnet body 8 faces are affixed on the inner surface of outer rotor iron core 7; Internal rotor permanent-magnetic body 4 both can face be affixed on the inner surface of internal rotor iron core 5, also can in be embedded in the inside of internal rotor iron core 5.Wherein face pastes situation as depicted in figs. 1 and 2, in bury situation as shown in Figure 3 and Figure 4.
Stator core 1 both can be slotted, and also can not slot.Wherein, the fluting situation as shown in figures 1 and 3, the situation of not slotting such as Fig. 2 and shown in Figure 4.
Stator winding 2 is Circular Winding back-to-back.For slotted stator iron core 1, stator winding 2 is embedded in the slotted stator iron core 1; For slotted stator iron core 1 not, stator winding 2 even annulars are wound on the stator core 1, and become an integral body with the thermosetting resin cementation.
The stator of motor maintains static, and the motor inner and outer rotors rotates synchronously.
Inner and outer rotors comprises inner and outer rotors iron core and inner and outer rotors permanent magnet, and internal rotor and external rotor rotate synchronously; Stator comprise with the stator core 1 of rotor coaxial and back-to-back annular be wound in the stator winding 2 of stator core 1.Internal rotor permanent-magnetic body 4 and external rotor permanent magnet body 8 adopts opposite magnetizing direction, and interior external magnetic circuit be relation in parallel, and interior external magnetic circuit passes through stator common iron core 1 closure, and independently the magneto suit is together to be equivalent to two.
A kind of dual rotor permanent magnetic motor that is applied to wind power generation of the present invention, its stator winding adopts Circular Winding back-to-back, has increased the winding wire number of turns of motor.Adopt Circular Winding back-to-back, motor end winding length can not become along with the increase of motor diameter greatly, can increase the power density that the motor fineness ratio improves motor.Compare other forms of winding construction, the tip lengths of Circular Winding is less relatively back-to-back, can effectively improve motor copper cash utilance, reduce winding resistance, can effectively reduce the copper loss of motor, improve the generating efficiency of motor, also can further reduce the material cost of motor.
A kind of dual rotor permanent magnetic motor that is applied to wind power generation of the present invention, the winding back-to-back of its stator and two gap structure, increased the effective air gap area of motor, increased the winding wire number of turns of motor, make motor under lower rotating speed, also can produce bigger electromotive force, strengthened the generating capacity of wind-driven generator under low wind speed.The raising of power of motor density makes that for the identical generator of power the required permanent magnet of birotor permanent magnetic generator is lower than common permanent magnet generator, has reduced the permanent magnet cost, and volume weight is also littler.Inner and outer rotors is opposite with radially magnetic pull direction between the stator, the part of can cancelling out each other, and this is more conducive to the stable operation of generator.
The above only is preferred embodiment of the present invention, not in order to limit the present invention.All any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within protection scope of the present invention.
Claims (7)
1. a dual rotor permanent magnetic motor that is applied to wind power generation comprises rotor and stator, it is characterized in that: described rotor comprises internal rotor and external rotor; Described stator comprises stator core (1) and stator winding (2), and described stator is shared by internal rotor and external rotor, and described stator winding (2) is wound on the stator core (1); Described internal rotor is arranged at stator interior, air gap (3) in forming between internal rotor and the stator, and described internal rotor comprises internal rotor permanent-magnetic body (4) and internal rotor iron core (5); Described external rotor is arranged at the stator outside, forms outer air gap (6) between external rotor and the stator, and described external rotor comprises that outer rotor iron core (7) and face are affixed on the external rotor permanent magnet body (8) of outer rotor iron core (7) inner surface; Described internal rotor is fixedlyed connected with external rotor, and internal rotor and external rotor rotate synchronously; The magnetizing direction of described internal rotor permanent-magnetic body (4) and external rotor permanent magnet body (8) is opposite, inside and outside magnetic path parallel connection, and interior external magnetic circuit is by stator common iron core (1) closure.
2. a kind of dual rotor permanent magnetic motor that is applied to wind power generation according to claim 1, it is characterized in that: described stator winding (2) adopts Circular Winding back-to-back.
3. a kind of dual rotor permanent magnetic motor that is applied to wind power generation according to claim 1 and 2 is characterized in that: described stator core (1) is cup-like structure.
4. a kind of dual rotor permanent magnetic motor that is applied to wind power generation according to claim 1 and 2, it is characterized in that: the surfaces externally and internally of described stator core (1) has groove, and stator winding (2) is embedded in the groove of stator core.
5. a kind of dual rotor permanent magnetic motor that is applied to wind power generation according to claim 1 and 2, it is characterized in that: the surfaces externally and internally of described stator core (1) is smooth surface, stator winding (2) uniform ring is around on the stator core (1).
6. a kind of dual rotor permanent magnetic motor that is applied to wind power generation according to claim 1 and 2, it is characterized in that: described internal rotor permanent-magnetic body (4) face is affixed on the outer surface of internal rotor iron core (5), is embedded in the inside of internal rotor iron core (5) in perhaps.
7. a kind of dual rotor permanent magnetic motor that is applied to wind power generation according to claim 5, it is characterized in that: described stator winding (2) becomes an integral body by the thermosetting resin cementation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101595062A CN103269140A (en) | 2013-05-03 | 2013-05-03 | Birotor permanent magnet motor applied to wind power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101595062A CN103269140A (en) | 2013-05-03 | 2013-05-03 | Birotor permanent magnet motor applied to wind power generation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103269140A true CN103269140A (en) | 2013-08-28 |
Family
ID=49012754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101595062A Pending CN103269140A (en) | 2013-05-03 | 2013-05-03 | Birotor permanent magnet motor applied to wind power generation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103269140A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683778A (en) * | 2013-12-05 | 2014-03-26 | 北京交通大学 | Permanent magnet motor with back-wound type internal water-cooling stator winding and hollow-solid thermal insulation rotor sheath |
| CN103986251B (en) * | 2014-06-04 | 2017-02-22 | 江苏利得尔电机有限公司 | High-power density motor with water cooling structure |
| CN108561276A (en) * | 2018-06-07 | 2018-09-21 | 合肥工业大学 | A kind of double-rotor machine and the electricity generation system including the motor |
| CN108631545A (en) * | 2018-04-08 | 2018-10-09 | 张喆 | A kind of acute angle magnetic force and self power generation combination of dampings device |
| CN110601479A (en) * | 2019-09-20 | 2019-12-20 | 齐鲁工业大学 | Double-rotor induction wind driven generator and working method thereof |
| CN111082622A (en) * | 2020-01-10 | 2020-04-28 | 南京航空航天大学 | Decoupling type birotor alternating pole permanent magnet motor |
| CN111245187A (en) * | 2020-02-27 | 2020-06-05 | 南京航空航天大学 | Annular winding dual-rotor flux reversal motor |
| TWI704749B (en) * | 2019-08-07 | 2020-09-11 | 崑山科技大學 | Double rotor generator |
| CN111953163A (en) * | 2020-08-11 | 2020-11-17 | 哈尔滨工业大学 | Multiphase permanent magnet synchronous motor system and magnetic field adjusting method thereof |
| CN112366912A (en) * | 2020-10-19 | 2021-02-12 | 江苏大学 | Double-winding low-harmonic design method based on fractional-slot concentrated winding permanent magnet motor |
| CN113162350A (en) * | 2021-04-15 | 2021-07-23 | 深圳绿食宝科技有限公司 | High torque motor |
| CN113726118A (en) * | 2021-08-16 | 2021-11-30 | 南京师范大学 | Multi-split tooth ratio multi-port magnetic field modulation motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586031A (en) * | 2002-06-26 | 2005-02-23 | 阿莫泰克有限公司 | Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same |
| CN101322303A (en) * | 2006-04-20 | 2008-12-10 | 松下电器产业株式会社 | Motor |
| CN201466945U (en) * | 2009-08-13 | 2010-05-12 | 河南森源集团有限公司 | Radial magnetic field coreless permanent magnet wind generator |
| CN101917101A (en) * | 2010-08-06 | 2010-12-15 | 国电联合动力技术有限公司 | Double-stator direct-drive permanent magnet wind powered generator |
| CN202183711U (en) * | 2011-08-11 | 2012-04-04 | 国电联合动力技术有限公司 | Large double-rotor direct driving permanent magnet wind driven generator and generator set formed by same |
-
2013
- 2013-05-03 CN CN2013101595062A patent/CN103269140A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586031A (en) * | 2002-06-26 | 2005-02-23 | 阿莫泰克有限公司 | Brushless direct-current motor of radial core type having a structure of double rotors and method for making the same |
| JP2005521378A (en) * | 2002-06-26 | 2005-07-14 | アモテック・カンパニー・リミテッド | Radial core type double rotor type BLDC motor and manufacturing method thereof (BrushlessDirectCurrentMotorofRadioCoreTypeHavingaStructureofDoubleRotorMandformMakingTheSame) |
| CN101322303A (en) * | 2006-04-20 | 2008-12-10 | 松下电器产业株式会社 | Motor |
| CN201466945U (en) * | 2009-08-13 | 2010-05-12 | 河南森源集团有限公司 | Radial magnetic field coreless permanent magnet wind generator |
| CN101917101A (en) * | 2010-08-06 | 2010-12-15 | 国电联合动力技术有限公司 | Double-stator direct-drive permanent magnet wind powered generator |
| CN202183711U (en) * | 2011-08-11 | 2012-04-04 | 国电联合动力技术有限公司 | Large double-rotor direct driving permanent magnet wind driven generator and generator set formed by same |
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683778A (en) * | 2013-12-05 | 2014-03-26 | 北京交通大学 | Permanent magnet motor with back-wound type internal water-cooling stator winding and hollow-solid thermal insulation rotor sheath |
| CN103683778B (en) * | 2013-12-05 | 2016-08-31 | 北京交通大学 | Carry on the back wound internal water cooling stator winding, the magneto of empty solid heat insulation rotor jacket |
| CN103986251B (en) * | 2014-06-04 | 2017-02-22 | 江苏利得尔电机有限公司 | High-power density motor with water cooling structure |
| CN108631545A (en) * | 2018-04-08 | 2018-10-09 | 张喆 | A kind of acute angle magnetic force and self power generation combination of dampings device |
| CN108561276A (en) * | 2018-06-07 | 2018-09-21 | 合肥工业大学 | A kind of double-rotor machine and the electricity generation system including the motor |
| CN108561276B (en) * | 2018-06-07 | 2023-09-01 | 合肥工业大学 | Dual-rotor motor and power generation system comprising same |
| TWI704749B (en) * | 2019-08-07 | 2020-09-11 | 崑山科技大學 | Double rotor generator |
| CN110601479B (en) * | 2019-09-20 | 2021-10-29 | 齐鲁工业大学 | Double-rotor induction wind driven generator and working method thereof |
| CN110601479A (en) * | 2019-09-20 | 2019-12-20 | 齐鲁工业大学 | Double-rotor induction wind driven generator and working method thereof |
| CN111082622A (en) * | 2020-01-10 | 2020-04-28 | 南京航空航天大学 | Decoupling type birotor alternating pole permanent magnet motor |
| CN111245187A (en) * | 2020-02-27 | 2020-06-05 | 南京航空航天大学 | Annular winding dual-rotor flux reversal motor |
| CN111953163A (en) * | 2020-08-11 | 2020-11-17 | 哈尔滨工业大学 | Multiphase permanent magnet synchronous motor system and magnetic field adjusting method thereof |
| CN111953163B (en) * | 2020-08-11 | 2023-07-14 | 哈尔滨工业大学 | Multiphase permanent magnet synchronous motor system and magnetic field adjusting method thereof |
| CN112366912A (en) * | 2020-10-19 | 2021-02-12 | 江苏大学 | Double-winding low-harmonic design method based on fractional-slot concentrated winding permanent magnet motor |
| CN113162350A (en) * | 2021-04-15 | 2021-07-23 | 深圳绿食宝科技有限公司 | High torque motor |
| CN113726118A (en) * | 2021-08-16 | 2021-11-30 | 南京师范大学 | Multi-split tooth ratio multi-port magnetic field modulation motor |
| CN113726118B (en) * | 2021-08-16 | 2022-08-16 | 南京师范大学 | Multi-split tooth ratio multi-port magnetic field modulation motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103269140A (en) | Birotor permanent magnet motor applied to wind power generation | |
| CN104201848B (en) | A kind of double-stator permanent magnet vernier wind-driven generator | |
| CN101764491A (en) | Megawatt grade brushless slip ring double-fed wind generator/motor and control method thereof | |
| CN106026578A (en) | Reluctance rotor field modulation double-stator brushless doubly-fed motor | |
| CN101017998A (en) | Directly driving mixed excitation dual stator wind power dynamotor | |
| CN103762758A (en) | Rotor magnet-gathering type horizontal magnetic-flow permanent-magnet disc wind driven generator | |
| CN107707090B (en) | Double-stator superconducting brushless doubly-fed wind driven generator | |
| CN102983695A (en) | Permanent-magnetic exciting doubly-fed wind power generator | |
| CN102545502A (en) | Dual-stator brushless double-fed motor | |
| CN201786562U (en) | Dual-stator direct drive permanent magnet wind-driven generator | |
| CN202524258U (en) | Variable power input constant frequency power generation system using birotor motor | |
| CN2865122Y (en) | Direct-driving permanent-magnetic wind-driven generator | |
| CN101557150A (en) | Permanent magnet synchronous direct-drive wind power generator without iron core | |
| CN106253530B (en) | One kind is across two tooth concentratred winding vernier magnetoes | |
| CN102545501A (en) | Axial dual-stator brushless double-fed motor | |
| CN202435219U (en) | Brushless double-fed motor | |
| CN101183804A (en) | Three-phase external rotor electric excitation biconvex pole wind power generator | |
| CN103390946A (en) | Brushless double-fed wind turbine generator with high power density | |
| CN101572466A (en) | Halbach permanent-magnetic direct driving windmill generator without iron core | |
| CN108282120A (en) | Double-stator permanent magnet synchronous generator control system and method for wind-power electricity generation | |
| CN1929263A (en) | Combined type wind power magneto alternator | |
| CN102868246B (en) | High-capacity low-speed permanent-magnet wind-driven generator | |
| CN202435218U (en) | Axial brushless doubly-fed motor | |
| CN101783643A (en) | Permanent magnetic brushless constant voltage generator and voltage stabilizing method thereof | |
| CN100350716C (en) | High-capacity direct-driving multi-layer stator/rotor permanent magnet wind power generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130828 |