CN202094774U - Direct-drive solid-rotor asynchronous wind power generator system with concentric dual stator structure - Google Patents
Direct-drive solid-rotor asynchronous wind power generator system with concentric dual stator structure Download PDFInfo
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- CN202094774U CN202094774U CN2011201941269U CN201120194126U CN202094774U CN 202094774 U CN202094774 U CN 202094774U CN 2011201941269 U CN2011201941269 U CN 2011201941269U CN 201120194126 U CN201120194126 U CN 201120194126U CN 202094774 U CN202094774 U CN 202094774U
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Abstract
The utility model relates to a direct-drive solid-rotor asynchronous wind power generator system with a concentric dual stator structure. A power generator is a solid-rotor asynchronous power generator and consists of an inner-rotor power generator and an outer-rotor power generator which are concentric. The inner-rotor power generator consists of an outer stator and an inner rotor which are matched with each other. The outer-rotor power generator consists of an outer rotor and an inner stator which are matched with each other. Coil windings are wound on the inner stator and the outer stator. The inner rotor and the outer rotor are solid rotors. The inner rotor and the outer rotor are fixed on a supporting frame and the supporting frame is connected with the impeller rotating shaft of the wind power generator to realize rotation. The outer stator and the inner stator are fixed on a case and a dead spindle. The direct-drive solid-rotor asynchronous wind power generator system with the concentric dual stator structure has the advantages of simple and durable structure, low cost, small volume and maintenance-free running; and the efficiency of the power generator is high, the unit can be switched to a low-speed running mode when wind speed is low and the generating capacity of the unit can be improved.
Description
Technical field
The utility model 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.
The utility model content
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, a kind of solid rotor asynchronous wind driven generator system of directly driving of concentric type double-stator structure rational in infrastructure is provided, thereby reduced size greatly, improved generating efficiency.
The technical scheme that the utility model adopted is as follows:
A kind of solid rotor asynchronous wind driven generator system of directly driving of concentric type double-stator structure, generator is the solid rotor 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, and the iron core of inside and outside rotor is a solid 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.
The beneficial effects of the utility model are:
(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 utility model.
Fig. 2 is the double-stator structure cutaway view of direct wind-driven generator.
Fig. 3 is the sectional view of solid rotor asynchronous wind driven generator of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
Development along with 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 the solid rotor asynchronous wind driven generator that bigger application arranged in wind power system, its rotor is solid ferromagnetic cylinder or cylinder, is the core portion of magnetic circuit, the winding of double as circuit again, the two is integrated, and is simple in structure, durable, cost is low, makes simple.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; External rotor 27 iron cores are solid rotor with 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 to explanation of the present utility model, is not the qualification to utility model, and the utility model institute restricted portion is referring to claim, and under the situation of the utility model spirit, the utility model can be done any type of modification.
Claims (2)
1. the solid rotor asynchronous wind driven generator system of directly driving of a concentric type double-stator structure, it is characterized in that: generator is the solid rotor 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, and the iron core of inside and outside rotor is a solid 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. according to the solid rotor asynchronous wind driven generator system of directly driving of 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 |
|---|---|---|---|
| CN2011201941269U CN202094774U (en) | 2011-06-10 | 2011-06-10 | Direct-drive solid-rotor asynchronous wind power generator system with concentric dual stator structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201941269U CN202094774U (en) | 2011-06-10 | 2011-06-10 | Direct-drive solid-rotor asynchronous wind power generator system with concentric dual stator structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202094774U true CN202094774U (en) | 2011-12-28 |
Family
ID=45369815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201941269U Expired - Lifetime CN202094774U (en) | 2011-06-10 | 2011-06-10 | Direct-drive solid-rotor asynchronous wind power generator system with concentric dual stator structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202094774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141008A (en) * | 2011-02-24 | 2011-08-03 | 中科盛创（青岛）电气有限公司 | Direct-drive solid rotor asynchronous wind power generator system in concentric type double-stator structure |
| JP7015583B1 (en) | 2020-09-02 | 2022-02-03 | 利愛電氣股▲分▼有限公司 | Generator with outer rotor structure |
-
2011
- 2011-06-10 CN CN2011201941269U patent/CN202094774U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102141008A (en) * | 2011-02-24 | 2011-08-03 | 中科盛创（青岛）电气有限公司 | Direct-drive solid rotor asynchronous wind power generator system in concentric type double-stator structure |
| JP7015583B1 (en) | 2020-09-02 | 2022-02-03 | 利愛電氣股▲分▼有限公司 | Generator with outer rotor structure |
| JP2022042456A (en) * | 2020-09-02 | 2022-03-14 | 利愛電氣股▲分▼有限公司 | Generator having outer rotor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111228 |
|
| CX01 | Expiry of patent term |