CN102122869A - Concentric double-stator structured direct-drive cage type induction generator system - Google Patents
Concentric double-stator structured direct-drive cage type induction generator system Download PDFInfo
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- CN102122869A CN102122869A CN2011100439424A CN201110043942A CN102122869A CN 102122869 A CN102122869 A CN 102122869A CN 2011100439424 A CN2011100439424 A CN 2011100439424A CN 201110043942 A CN201110043942 A CN 201110043942A CN 102122869 A CN102122869 A CN 102122869A
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- 230000006698 induction Effects 0.000 title abstract 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 5
- 238000004804 winding Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- 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
-
- 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
- Y02E10/76—Power conversion electric or electronic aspects
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- Control Of Eletrric Generators (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a concentric double-stator structured direct-drive cage type induction generator system, wherein the generator is a cage type induction generator, which is combined by an inner rotor generator and an outer rotor generator which are concentric, wherein the inner rotor generator is characterized in that an outer stator is matched with an inner rotor; the outer rotor generator is characterized in that an outer rotor is matched with an inner stator; coils are wound on inner and outer stators; mouse cage bars are inserted into the iron cores of the inner and outer rotors; the inner and outer rotors are fixed on a support frame and are connected with an impeller rotating shaft of a wind turbine to realize rotation; and the outer and inner stators are fixed on a shell and a fixed shaft. The concentric double-stator structured direct-drive cage type induction generator system has simple structure, low cost, small size and is durable and free of maintenance. The generator efficiency is high, the machine set can switch into low-speed running state when the air speed is low so as to improve the generated energy of the machine set.
Description
Technical field
The present invention relates to the wind-driven generator field, especially the direct wind-driven generator of concentric type double-stator structure.
Background technology
In recent years, wind energy has obtained using widely as clean energy resource, and wherein a kind of mode of effectively utilizing is exactly a wind power generation.The innovation of wind power technology is very fast in the world, and installed capacity is increasing, and the non-gear box directly technology of driving is a main trend of following wind power technology.In direct-driving wind power generator, adopt magneto alternator and electric excitation synchro wind generator more; Wherein, need to install permanent magnetic material on the magneto alternator rotor, loss of excitation easily takes place in permanent magnetic material under environment such as short circuit, high temperature and judder; Permanent magnetic material is subjected to the restriction of resource and policy, and price constantly goes up; P-m rotor is ferromagnetic parts, and is higher to production scene and manufacturing technique requirent, brought great difficulty for processing and assembling.On the electricity excitation synchro wind generator rotor DC excitation winding is arranged, need slip ring and carbon brush configuration that the DC excitation electric current is provided, necessary periodic maintenance of slip ring and carbon brush configuration and replacing have increased maintenance cost and fault occurrence probability.But direct wind-driven generator is owing to directly be connected with wind energy conversion system, and its rotating speed is low, number of poles is many, and the stator and rotor size is big, is the flat structure, and motor internal has bigger space and do not utilize.
Summary of the invention
The applicant is low at the rotating speed that the direct syndeton of above-mentioned existing direct wind-driven generator produces, number of poles is many, shortcomings such as size is big, what a kind of concentric type double-stator structure rational in infrastructure was provided directly drives cage type asynchronous wind powered generator system, thereby has reduced size greatly, has improved generating efficiency.
The technical solution adopted in the present invention is as follows:
A kind of concentric type double-stator structure directly drive cage type asynchronous wind powered generator system, generator is cage type asynchronous generator, combine by two concentric internal rotor generator and outer rotor generators, described internal rotor generator is cooperated by external stator and internal rotor, and described outer rotor generator is cooperated by external rotor and internal stator; Coil windings is wound on the inside and outside stator; The mouse cage sliver inserts in the iron core of inside and outside rotor; Described internal rotor and described external rotor are fixed on the bracing frame, and are connected the realization revolution with the impeller shaft of wind energy conversion system; Described external stator and described internal stator are fixed on casing and the dead axle.It is further characterized in that:
The internal rotor generator of described generator is connected with multi winding transformer by current transformer, circuit breaker, the fuse that is connected in series with outer rotor generator, and the output of multi winding transformer is connected to electrical network.
Beneficial effect of the present invention is:
(1) simple in structure, durable, cost is low, volume is little, non-maintaining; (2) compact conformation, specific volume power is big; (3) under different wind speed, by changing generator capacity, the wind energy of input and the power of generator are complementary, realize maximal power tracing, improve the energy conversion efficiency of system; (4) in the whole service velocity interval, generator efficiency height, annual energy output height; (5) unit can be than low cruise, thereby makes unit can cut when lower wind speed, improves the unit generation amount.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the double-stator structure cutaway view of direct wind-driven generator.
Fig. 3 is the sectional view of cage type asynchronous wind-driven generator of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Along with the development of power electronic technology and control theory, adopt electronic power convertor to replace traditional capacitor that excitation is provided, break through condenser excitation and regulated the bottleneck of difficulty, make cage type asynchronous wind-driven generator that bigger application arranged in wind power system.As Fig. 2, shown in Figure 3, the concentric type double-stator structure directly drives generator 2 can regard two concentric motors compositions as: one is the internal rotor generator, is made up of external stator 25 and internal rotor 26; Another is an outer rotor generator, is made up of external rotor 27 and internal stator 28; Winding 25-1 is wound on the external stator 25, and winding 28-1 is wound on the internal stator 28; Mouse cage sliver 27-1 inserts in external rotor 27 iron cores, and mouse cage sliver 26-1 inserts in internal rotor 26 iron cores.Internal rotor 26 and external rotor 27 are fixed on the bracing frame 29, and bracing frame 29 is connected with impeller 1 rotating shaft realizes revolution; External stator 25 is fixed on casing 24 and the dead axle with internal stator 28.As shown in Figure 1, internal rotor generator and outer rotor generator are connected with multi winding transformer 9 with fuse 7,8 by circuit breaker 5,6 respectively by being connected with current transformer 4 with current transformer 3, and multi winding transformer 9 outputs are connected with electrical network 10.Under different wind speed, by changing generator capacity, the wind energy of input and the power of generator are complementary, realize maximal power tracing, improve the energy conversion efficiency of system.The power of inside and outside rotor generator is according to certain pro rate (as 2:1), and unit can divide the power operation according to different wind speed, as following of low wind conditions outer rotor generator being incorporated into the power networks; Along with wind speed improves, the internal rotor generator connecting in parallel with system is moved; After reaching rated wind speed, inside and outside rotor generator is incorporated into the power networks simultaneously, reach rated power.
More than describing is explanation of the invention, is not that institute of the present invention restricted portion is referring to claim to the qualification of invention, and under the situation of spirit of the present invention, the present invention can do any type of modification.
Claims (2)
1. a concentric type double-stator structure directly drives cage type asynchronous wind powered generator system, it is characterized in that: generator is cage type asynchronous generator, combine by two concentric internal rotor generator and outer rotor generators, described internal rotor generator is cooperated by external stator and internal rotor, and described outer rotor generator is cooperated by external rotor and internal stator; Coil windings is wound on the inside and outside stator; The mouse cage sliver inserts in the iron core of inside and outside rotor; Described internal rotor and described external rotor are fixed on the bracing frame, and are connected the realization revolution with the impeller shaft of wind energy conversion system; Described external stator and described internal stator are fixed on casing and the dead axle.
2. directly drive cage type asynchronous wind powered generator system according to the described concentric type double-stator structure of claim 1, it is characterized in that: the internal rotor generator of described generator is connected with multi winding transformer by current transformer, circuit breaker, the fuse that is connected in series with outer rotor generator, and the output of multi winding transformer is connected to electrical network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100439424A CN102122869A (en) | 2011-02-24 | 2011-02-24 | Concentric double-stator structured direct-drive cage type induction generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100439424A CN102122869A (en) | 2011-02-24 | 2011-02-24 | Concentric double-stator structured direct-drive cage type induction generator system |
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| Publication Number | Publication Date |
|---|---|
| CN102122869A true CN102122869A (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100439424A Pending CN102122869A (en) | 2011-02-24 | 2011-02-24 | Concentric double-stator structured direct-drive cage type induction generator system |
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| CN (1) | CN102122869A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305184A (en) * | 2011-08-16 | 2012-01-04 | 无锡航天万源新大力电机有限公司 | Cascade-type direct-drive wind generator |
| CN102946118A (en) * | 2012-11-21 | 2013-02-27 | 东南大学 | Multi-stator winding permanent magnet synchronous wind power generation system and control method thereof |
| CN105429404A (en) * | 2015-12-24 | 2016-03-23 | 韩汶冀 | Power generation device |
| CN112735905A (en) * | 2020-12-25 | 2021-04-30 | 默飓电气有限公司 | Permanent magnet vacuum circuit breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783893A (en) * | 1995-10-20 | 1998-07-21 | Newport News Shipbuilding And Dry Dock Company | Multiple stator, single shaft electric machine |
| CN101017998A (en) * | 2007-03-12 | 2007-08-15 | 东南大学 | Directly driving mixed excitation dual stator wind power dynamotor |
| CN101330234A (en) * | 2008-04-21 | 2008-12-24 | 上海大学 | Direct-drive composite permanent magnet motor |
| CN201584856U (en) * | 2009-12-22 | 2010-09-15 | 西安久和能源科技有限公司 | Cage-type asynchronous wind power generator unit |
| CN201956843U (en) * | 2011-02-24 | 2011-08-31 | 中科盛创（青岛）电气有限公司 | Cage-type directly-driven asynchronous wind generator system with concentric dual-stator structure |
-
2011
- 2011-02-24 CN CN2011100439424A patent/CN102122869A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5783893A (en) * | 1995-10-20 | 1998-07-21 | Newport News Shipbuilding And Dry Dock Company | Multiple stator, single shaft electric machine |
| CN101017998A (en) * | 2007-03-12 | 2007-08-15 | 东南大学 | Directly driving mixed excitation dual stator wind power dynamotor |
| CN101330234A (en) * | 2008-04-21 | 2008-12-24 | 上海大学 | Direct-drive composite permanent magnet motor |
| CN201584856U (en) * | 2009-12-22 | 2010-09-15 | 西安久和能源科技有限公司 | Cage-type asynchronous wind power generator unit |
| CN201956843U (en) * | 2011-02-24 | 2011-08-31 | 中科盛创（青岛）电气有限公司 | Cage-type directly-driven asynchronous wind generator system with concentric dual-stator structure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102305184A (en) * | 2011-08-16 | 2012-01-04 | 无锡航天万源新大力电机有限公司 | Cascade-type direct-drive wind generator |
| CN102946118A (en) * | 2012-11-21 | 2013-02-27 | 东南大学 | Multi-stator winding permanent magnet synchronous wind power generation system and control method thereof |
| CN105429404A (en) * | 2015-12-24 | 2016-03-23 | 韩汶冀 | Power generation device |
| CN112735905A (en) * | 2020-12-25 | 2021-04-30 | 默飓电气有限公司 | Permanent magnet vacuum circuit breaker |
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Application publication date: 20110713 |