CN101488682A - Constant voltage outputting mixed excitation type magnetic flux switching wind power generator - Google Patents
Constant voltage outputting mixed excitation type magnetic flux switching wind power generator Download PDFInfo
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- CN101488682A CN101488682A CNA2009101199384A CN200910119938A CN101488682A CN 101488682 A CN101488682 A CN 101488682A CN A2009101199384 A CNA2009101199384 A CN A2009101199384A CN 200910119938 A CN200910119938 A CN 200910119938A CN 101488682 A CN101488682 A CN 101488682A
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Abstract
The invention discloses a constant voltage output composite excitation type magnetic flux switching aerogenerator which comprises a stator and a rotor that have salient pole structure, wherein, the stator is formed by assembling twelve U-shaped magnetic conduction magnet cores, and a permanent-magnet is arranged between every two adjacent U-shaped magnetic conduction magnet cores; a rotor core is provided with ten poles, and the stator is provided with a three-phase concentrated winding and a single-phase concentrated exciting winding; a straight flute rotor is not provided with the permanent-magnet and the windings. In the structure, the invention maintains the advantages of being compact and simple, good in robustness and suitable for high speed running of the permanent magnet magnetic flux switching motor; the volume of the motor is not needed to be additionally increased, and the function of regulating magnetic field can be realized. Therefore, the aerogenerator has composite excitation magnetic field and higher power density, can realize constant voltage output, and is especially suitable for the application occasion requiring small volume and large power, thus realizing the high-efficiency conversion and utilization of wind energy.
Description
Technical field:
The present invention relates to a kind of mechanism of power generation technology for making, particularly relate to a kind of wind-driven generator that can realize constant voltage output.
Background technology:
Along with the continuous aggravation of energy crisis, utilize wind resource to become global common recognition to save energy resource consumption progressively to reduce the thermoelectricity energy output.The wind-driven generator that extensively adopts both at home and abroad mainly is divided into direct-drive type and two kinds of structures of band change gear box at present, and wherein direct-drive type is just causing increasing concern.Simultaneously, because China is the abundantest country of rare earth resources in the world, developmental research and apply the rare earth permanent magnet wind-driven generator of new structure has important significance for theories and practical value.Yet, because the permanent magnet generator air-gap field can't regulate, make its unloaded electromotive force controlled by rotor speed, thereby it is bigger to cause the output voltage of common permanent-magnetic wind driven generator influenced by wind speed, becomes the bottleneck that limits its application.And what occur at present is that the hybrid excitation generator major part of prototype is all placed stator with the DC excitation winding with the rotor permanent magnet-type motor.No matter in order to provide one to be radially or axially parallel with permanent magnet flux path to electro-magnetic flux, the electric machine structure that is proposed is unusual complexity all, no matter from manufacturing process or finished product large-scale production, all face great challenge.If the motor of composite excitation type needs to make great sacrifice for the adjusting that realizes magnetic field from structure complexity, its competitiveness will be had a greatly reduced quality.
Summary of the invention:
The object of the present invention is to provide a kind of new structure compactness, simple, constant voltage outputting mixed excitation type magnetic flux switching wind power generator that robustness is good.This motor can rationally be arranged electric excitation winding space, under the condition that does not additionally increase volume, can further improve the power density of motor, adjusting by electric exciting current simultaneously can improve every performance in all directions, comprises the high efficiency in starting wind velocity, peak power output, constant voltage output and the whole service district scope.
The present invention is achieved in that constant voltage outputting mixed excitation type magnetic flux switching wind power generator comprises stator and rotor, stator and rotor all are salient-pole structure, stator is assemblied to form by 12 U-shaped magnetic conductive iron, be provided with permanent magnet between two adjacent U-shaped magnetic conductive iron, rotor core has 10 utmost points; It is characterized in that: stator is provided with winding and single-phase central excitation winding in the three-phase set;
First winding coil is radially relative with tertiary winding coil mutually for the A of winding in the described three-phase set, second winding coil is radially relative with the 4th winding coil, each winding coil is placed in the groove of two adjacent U-shaped magnetic conductive iron in the stator, and above-mentioned four winding coils are connected in series successively in proper order from beginning to end;
The 5th winding coil is radially relative with the 7th winding coil mutually for the B of winding in the described three-phase set, the 6th winding coil is radially relative with the 8th winding coil, each winding coil is placed in the groove of two adjacent U-shaped magnetic conductive iron in the stator, and above-mentioned four winding coils are connected in series successively in proper order from beginning to end;
The 9th winding coil is radially relative with the 11 winding coil mutually for the C of winding in the described three-phase set, the tenth winding coil is radially relative with the 12 winding coil, each winding coil is placed in the groove of two adjacent U-shaped magnetic conductive iron in the stator, and above-mentioned four winding coils are connected in series successively in proper order from beginning to end;
Single-phase central excitation winding one has 6 coils, place the groove of adjacent two permanent magnets below respectively, being distributed with a coil in each groove is individual layer, and the excitation winding pole coil number is half of armature winding coil number, and above-mentioned 6 coils order head and the tail successively are connected in series.
The present invention compared with prior art has following advantage:
1. adopt novel stator permanent magnetic type structure, being about to permanent magnetic steel places stator and replaces traditional rotor permanent-magnet type, rotor portion is that silicon steel sheet is pressed the folded solid core that forms, and makes motor rotor construction very firm, and is no longer necessary for the fixed rotor magnet steel and adds complicated processing technology;
2. the wind generator system that traditional rotor permanent magnet-type motor is formed, when the attack that is subjected to high wind, rotor is vulnerable to mechanical shock most, causes magnet steel to damage, and influences the operation of whole system.And adopt the structure of stator permanent magnetic type just can avoid this problem fully, improved the stability of a system;
3. the electric excitation winding of a cover that increases need not to increase under the condition of motor volume and can lay, armature in the motor and excitation two cover windings all adopt concentrated winding, the end is shorter, and is simple with existing mixed excitation electric machine (comprising rotor permanent-magnet type and stator permanent magnetic type) structure compared, and development easily;
4. adopt the composite excitation structure, can when wind speed is excessive or too small, control the intensity of air-gap field by the regulatory function of excitation winding, thereby guarantee constant voltage output in the wind speed range of a broadness, have significant effects the useful life of the storage battery that this connects after to generator, played the effect of " reduction of discharging ";
5. by the magnetic field regulatory function of excitation winding,, reduced the volume and the manufacturing cost of whole system for the yaw system that saves blower fan provides possibility;
6. by excitation winding on the stator or armature winding, can magnetize for the permanent magnetic steel that places stator equally is online, and not need to take apart motor, very convenient.And, obtain the same magnetic potential that magnetizes for the motor of rotor permanent-magnet type structure, the bigger electric current that magnetizes then must be provided, and be difficult for realizing.
Description of drawings:
Accompanying drawing is that armature winding 4. single-phase central excitation winding 5. rotors 301. first concentrate armature coils 302. second to concentrate armature coils 303. the 3rd to concentrate armature coils 304. the 4th to concentrate armature coils 311. the 5th to concentrate armature coils 312. the 6th to concentrate armature coil 313. the 7th to concentrate armature coil 314. the 8th to concentrate armature coil 321. the 9th to concentrate armature coil 322. the tenth to concentrate armature coil 323. the 11 to concentrate armature coil 324. the 12 to concentrate armature coil 401. first central excitation coils 402. second central excitation coils 403. the 3rd central excitation coil 404. the 4th central excitation coil 405. the 5th central excitation coil 406. the 6th central excitation coils in structural representation 1. stators 2. permanent magnets 3. three-phase set of wind-driven generator of the present invention
Embodiment:
From accompanying drawing as can be seen, constant voltage outputting mixed excitation type magnetic flux switching wind power generator of the present invention comprises stator 1 and rotor 5, stator 1 and rotor 5 all are salient-pole structure, and stator 1 is assemblied to form by 12 U-shaped magnetic conductive iron, are provided with permanent magnet 2 between two adjacent U-shaped magnetic conductive iron; Rotor 5 iron cores have 10 utmost points, it is characterized in that: stator 1 is provided with winding 3 and single-phase central excitation winding 4 in the three-phase set;
The 5th winding coil 311 is radially relative with the 7th winding coil 313 mutually for the B of winding 3 in the three-phase set, the 6th winding coil 312 is radially relative with the 8th winding coil 314, each winding coil is placed in the groove of two adjacent U-iron hearts in the stator 1, and above-mentioned four winding coils are connected in series successively in proper order from beginning to end;
The 9th winding coil 321 is radially relative with the 11 winding coil 323 mutually for the C of winding 3 in the three-phase set, the tenth winding coil 322 is radially relative with the 12 winding coil 324, each winding coil is placed in the groove of two adjacent U-iron hearts in the stator 1, and above-mentioned four winding coils are connected in series successively in proper order from beginning to end;
Single-phase central excitation winding 4 one has 6 coils 401,402,403,404,405,406, place the groove of adjacent two permanent magnets below respectively, being distributed with a coil in each groove is individual layer, the excitation winding pole coil number is half of armature winding coil number, and above-mentioned 6 coils order head and the tail successively are connected in series.
When rotor during in position shown in the accompanying drawing, rotor 5 has a tooth and first to concentrate armature coil 301 and second to concentrate a stator tooth of armature coil 302 relative respectively, the direction of magnetization according to permanent magnet 2, permanent magnet flux in two coils all pierces into stator tooth from rotor tooth through air gap, and the numerical value maximum.At this moment, if apply the electric excitation magnetic potential identical respectively with the permanent magnetic potential direction by first excitation winding pole coil 401 and second excitation winding pole coil 402, then can increase linkage to the first and concentrate the armature coil 301 and second magnetic flux of concentrating in the armature coil 302, thus the electromotive force that influence induces.On the contrary,, make the electro-magnetic flux of generation opposite, then can reduce first and concentrate the armature coil 301 and the second synthetic magnetic linkage of concentrating in the armature coil 302 with the permanent magnet flux direction if change the sense of current, and then the electromotive force that reduces to respond to.Concentrate the B of armature winding 3 the same with the operation principle of C coil mutually mutually, can improve motor performance and operating efficiency greatly.
Permanent magnet 2 is ferrite or Nd-Fe-B permanent magnetic magnet steel, and stator 1 and rotor 5 can adopt silicon steel punching to press folded making.
This product structurally kept magneto flux switch motor compactness, simple, robustness is good, the advantage that is suitable for high-speed cruising, need not additionally to increase motor volume and just can realize the magnetic field regulatory function, guaranteed that this motor is a kind of wind-driven generator that has composite excitation magnetic field and higher power density, can realize constant voltage output, be particularly suitable for wanting the cube big application scenario of exerting oneself for a short time, can realize the efficient conversion and the utilization of wind energy.
Claims (4)
1. constant voltage outputting mixed excitation type magnetic flux switching wind power generator comprises stator (1) and rotor (5), described stator (1) and rotor (5) all are salient-pole structure, described stator (1) is assemblied to form by 12 U-shaped magnetic conductive iron, is provided with permanent magnet (2) between two adjacent U-shaped magnetic conductive iron; Rotor (5) iron core has 10 utmost points, it is characterized in that: stator (1) is provided with winding in the three-phase set (3) and single-phase central excitation winding (4);
The A of winding in the described three-phase set (3) first winding coil (301) mutually is radially relative with tertiary winding coil (303), second winding coil (302) is radially relative with the 4th winding coil (304), each winding coil is placed in the groove of two adjacent U-shaped magnetic conductive iron in the described stator (1), and above-mentioned four winding coils are connected in series successively in proper order from beginning to end;
The B of winding in the described three-phase set (3) the 5th winding coil (311) mutually is radially relative with the 7th winding coil (313), the 6th winding coil (312) is radially relative with the 8th winding coil (314), each winding coil is placed in the groove of two adjacent U-shaped magnetic conductive iron in the described stator (1), and above-mentioned four winding coils are connected in series successively in proper order from beginning to end;
The C of winding in the described three-phase set (3) the 9th winding coil (321) mutually is radially relative with the 11 winding coil (323), the tenth winding coil (322) is radially relative with the 12 winding coil (324), each winding coil is placed in the groove of two adjacent U-shaped magnetic conductive iron in the described stator (1), and above-mentioned four winding coils are connected in series successively in proper order from beginning to end;
Described single-phase central excitation winding (4) has 6 coils (401,402,403,404,405,406), place the groove of adjacent two permanent magnets below respectively, being distributed with a coil in each groove is individual layer, the excitation winding pole coil number is half of armature winding coil number, and above-mentioned 6 coils order head and the tail successively are connected in series.
2. constant voltage outputting mixed excitation type magnetic flux switching wind power generator according to claim 1 is characterized in that: rotor rotor (5) is internal rotor or outer-rotor structure.
3. constant voltage outputting mixed excitation type magnetic flux switching wind power generator according to claim 1 is characterized in that: rotor (5) is the straight trough rotor, has not both had permanent magnet and has not also had winding.
4. constant voltage outputting mixed excitation type magnetic flux switching wind power generator according to claim 1 is characterized in that: permanent magnet (2) is ferrite or Nd-Fe-B permanent magnetic magnet steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101199384A CN101488682A (en) | 2009-02-27 | 2009-02-27 | Constant voltage outputting mixed excitation type magnetic flux switching wind power generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009101199384A CN101488682A (en) | 2009-02-27 | 2009-02-27 | Constant voltage outputting mixed excitation type magnetic flux switching wind power generator |
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| CN101488682A true CN101488682A (en) | 2009-07-22 |
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| CNA2009101199384A Pending CN101488682A (en) | 2009-02-27 | 2009-02-27 | Constant voltage outputting mixed excitation type magnetic flux switching wind power generator |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113251A (en) * | 2014-06-17 | 2014-10-22 | 曲阜师范大学 | Wind power generation-used modular electro-magnetic flux switching power generator |
| CN104617727A (en) * | 2015-02-15 | 2015-05-13 | 东南大学 | Dual-stator axial magnetic field flux switching type hybrid permanent magnet memory motor |
| CN107453573A (en) * | 2017-09-20 | 2017-12-08 | 华中科技大学 | A kind of not equidistant mixed excitation bisalient-pole permanent-magnet synchronous machine of stator poles |
| CN113054776A (en) * | 2019-12-27 | 2021-06-29 | 黑龙江省国特尔机电科技有限责任公司 | Uniform magnetic equidirectional high-power-density energy-saving motor |
-
2009
- 2009-02-27 CN CNA2009101199384A patent/CN101488682A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104113251A (en) * | 2014-06-17 | 2014-10-22 | 曲阜师范大学 | Wind power generation-used modular electro-magnetic flux switching power generator |
| CN104617727A (en) * | 2015-02-15 | 2015-05-13 | 东南大学 | Dual-stator axial magnetic field flux switching type hybrid permanent magnet memory motor |
| CN107453573A (en) * | 2017-09-20 | 2017-12-08 | 华中科技大学 | A kind of not equidistant mixed excitation bisalient-pole permanent-magnet synchronous machine of stator poles |
| CN113054776A (en) * | 2019-12-27 | 2021-06-29 | 黑龙江省国特尔机电科技有限责任公司 | Uniform magnetic equidirectional high-power-density energy-saving motor |
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Open date: 20090722 |