CN204216811U - Double-fed wind power generator - Google Patents
Double-fed wind power generator Download PDFInfo
- Publication number
- CN204216811U CN204216811U CN201420781117.3U CN201420781117U CN204216811U CN 204216811 U CN204216811 U CN 204216811U CN 201420781117 U CN201420781117 U CN 201420781117U CN 204216811 U CN204216811 U CN 204216811U
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- Prior art keywords
- rotor
- side inverter
- electrical network
- induction machine
- wound
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Abstract
The utility model relates to field of industrial machinery, be specifically related to double-fed wind power generator, comprise wound-rotor induction machine, described wound-rotor induction machine is connected with rotor side inverter, described rotor side inverter is connected with net side inverter by DC line, described net side inverter is connected with electrical network, described electrical network is connected with rotor winding induction machine when wound-rotor induction machine rotates, energy enters rotor loop by rotor side inverter, the basic controlling of net side inverter makes direct voltage keep constant, ensure that the power factor absorbed from electrical network is 1, rotor side inverter controls separately, the power factor of generator is controlled, reactive power can be provided to electrical network, to regulate the voltage of electrical network.
Description
Technical field
The utility model relates to field of industrial machinery, is specifically related to double-fed wind power generator.
Background technology
Along with international legislation mechanism, the impact of the factors such as the Long-Time Service of environmental problem and fossil fuel, the demand of wind-driven generator increases at present fast, the global climatologic change problem of international concern is enjoyed to cause national governments to strive to find method, improve the ratio of regenerative resource in whole supply of electric power, to reduce the discharge of carbon dioxide, application number is the utility model patent of CN200920234581.X, by changing the gearratio between fan blade and generator, to realize the Efficient Conversion to wind energy, the rotating speed of the rotating ratio fan blade of generator shaft improves more than 70 times, significantly improve the rotating speed of generator shaft, improve the operating efficiency of generator, but, the constant of electric current can not be ensured, power factor in electrical network is unstable, the voltage of electrical network cannot regulate.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of current constant, the double-fed wind power generator of adjustable electrical network electric industry.
For solving the problems of the technologies described above, the utility model provides following technical scheme: double-fed wind power generator, comprise wound-rotor induction machine, described wound-rotor induction machine is connected with rotor side inverter, described rotor side inverter is connected with net side inverter by DC line, described net side inverter is connected with electrical network, and described electrical network is connected with wound-rotor induction machine.
On such scheme basis preferably, the power of described electrical network is 0.24-0.36KW.
On such scheme basis preferably, described wound-rotor induction machine is provided with rotor punching.
The beneficial effect that the utility model compared with prior art has is: wound-rotor induction machine turn rotate greatly time, energy enters rotor loop by rotor side inverter, the basic controlling of net side inverter makes direct voltage keep constant, ensure that the power factor absorbed from electrical network is 1, rotor side inverter controls separately, the power factor of generator is controlled, can provide reactive power to electrical network, to regulate the voltage of electrical network; Wound-rotor induction machine is provided with rotor punching, provides the approach of the outer conducting of a heat.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram.
Fig. 2 is the schematic diagram of wound-rotor induction machine in the utility model.
Number in the figure is: 1-wound-rotor induction, 2-rotor side inverter, 3-DC line,
4-net side inverter, 5-electrical network, 6-rotor punching.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In description of the present utility model, it will be appreciated that, term " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, it is only the utility model for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
Known with reference to Fig. 1, double-fed wind power generator, comprise wound-rotor induction machine 1, described wound-rotor induction machine 1 is connected with rotor side inverter 2, described rotor side inverter 2 is connected with net side inverter 4 by DC line 3, described net side inverter 4 is connected with electrical network 5, and described electrical network 5 is connected with wound-rotor induction machine 1.
Further, the power of described electrical network 5 is 0.24-0.36KW.
Further, described wound-rotor induction machine 1 is provided with rotor punching 6, provides the approach of the outer conducting of a heat.
When 1 turn, wound-rotor induction machine rotates greatly, energy enters rotor loop by rotor side inverter 2, the basic controlling of net side inverter 4 makes direct voltage keep constant, ensure that the power factor absorbed from electrical network 5 is 1, rotor side inverter 2 controls separately, the power factor of generator is controlled, can provide reactive power to electrical network 5, to regulate the voltage of electrical network 5.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (3)
1. double-fed wind power generator, it is characterized in that: comprise wound-rotor induction machine, described wound-rotor induction machine is connected with rotor side inverter, described rotor side inverter is connected with net side inverter by DC line, described net side inverter is connected with electrical network, and described electrical network is connected with rotor winding induction machine.
2. double-fed wind power generator according to claim 1, is characterized in that: the power of described electrical network is 0.24-0.36KW.
3. double-fed wind power generator according to claim 1, is characterized in that: described coiling wound-rotor induction machine is provided with rotor punching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781117.3U CN204216811U (en) | 2014-12-12 | 2014-12-12 | Double-fed wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420781117.3U CN204216811U (en) | 2014-12-12 | 2014-12-12 | Double-fed wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204216811U true CN204216811U (en) | 2015-03-18 |
Family
ID=52985443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420781117.3U Expired - Fee Related CN204216811U (en) | 2014-12-12 | 2014-12-12 | Double-fed wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204216811U (en) |
-
2014
- 2014-12-12 CN CN201420781117.3U patent/CN204216811U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150318 Termination date: 20151212 |
|
| EXPY | Termination of patent right or utility model |