CN202260826U - Wind power generation system - Google Patents
Wind power generation system Download PDFInfo
- Publication number
- CN202260826U CN202260826U CN2011203520832U CN201120352083U CN202260826U CN 202260826 U CN202260826 U CN 202260826U CN 2011203520832 U CN2011203520832 U CN 2011203520832U CN 201120352083 U CN201120352083 U CN 201120352083U CN 202260826 U CN202260826 U CN 202260826U
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- Prior art keywords
- generator
- accelerator
- electromagnetic clutch
- electrically connected
- wind
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- Control Of Eletrric Generators (AREA)
- Wind Motors (AREA)
Abstract
The utility model discloses a wind power generation system which comprises a fan, a gear box, an accelerator, a generator and a rectifying system, wherein the rotating shaft of the fan is connected with the input shaft of the gear box; the output shaft of the gear box is connected with the input shaft of the accelerator; and the generator is electrically connected with the rectifying system. The wind power generation system is characterized in that a speed limit control system is arranged between the accelerator and the generator. The wind power generation system has the advantages that when the rotating speed of a wind power generator exceeds a rated rotating speed, the speed limit control system enables an electromagnetic clutch to be separated, and when the speed is reduced to the rated rotating speed, the speed limit control system enables the electromagnetic clutch to be closed and drives the generator to generate power, thereby effectively improving the wind energy conversion efficiency of the wind power generator, stabilizing the output power of the wind power generator and effectively preventing the phenomenon that the generator or other electric power facilities are damaged due to over-large transient electric quantity.
Description
Technical field
The utility model relates to a kind of electricity generation system, especially relates to a kind of wind generator system.
Background technology
Wind energy is a kind of inexhaustible and free of contamination energy, and wind power generation neither need consume fuel, also can not discharge carbon dioxide, lime-ash the like waste, has advantages such as the environment of adequately protecting, continuous utilization resource.Generator is the core component of wind generator system, and power adjustments is one of key technology of wind-driven generator.The wind-driven generator that puts into operation at present mainly has two kinds of power adjustments modes: one type is to decide slurry to control apart from stall, and another kind of is to become slurry apart from control.Fixed slurry is meant that apart from stall control the high-power and high-speed engine operation is in the high wind speed district; The small-power wool(l)y-type engine works in low wind speed district; The highest generating efficiency is pursued in stall through blade or driftage control, yet it is constant in fact to be difficult to guaranteed output, can descend to some extent usually; Thereby reduced the wind energy conversion efficiency of wind-driven generator; The change slurry is regulated the wind energy conversion system generating efficiency apart from controlling the attack angle of blade that is meant through change and blade coupling, and these two kinds of power adjustments modes all exist reaction to cause instantaneous overload slowly, thus the problem of breaking-up generator or other electric power facility.
Summary of the invention
The utility model technical problem to be solved provides and a kind ofly can effectively improve wind energy conversion efficiency, the wind generator system of stable output power.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of wind generator system; Comprise blower fan, gearbox, accelerator, generator and commutation system; The rotating shaft of described blower fan connects with the power shaft of described gearbox; The output shaft of described gearbox connects with the power shaft of described accelerator, and described generator is electrically connected with described commutation system, is provided with speed limit control system between described accelerator and the described generator.
Described speed limit control system comprises encoder, single chip machine controlling circuit and electromagnetic clutch; The power shaft of described electromagnetic clutch connects with the output shaft of described accelerator; The output shaft of described electromagnetic clutch connects with the power shaft of described generator; Described single chip machine controlling circuit is electrically connected with described electromagnetic clutch, and described encoder is electrically connected with described single chip machine controlling circuit, and described encoder is electrically connected with described generator.
Described electromagnetic clutch is a slipping toothed electromagnetic clutch.
The model of the single-chip microcomputer in the described single chip machine controlling circuit is AT89C51.
Described commutation system comprises rectifier, storage battery and inverter, and described rectifier is electrically connected with described generator, and described storage battery is electrically connected with described rectifier, and described inverter is electrically connected with described storage battery.
Described accelerator is a NGW type spider gear accelerator.
Compared with prior art; The advantage of the utility model is owing to be connected with speed limit control system between accelerator and the generator; Speed limit control system control electromagnetic clutch carries out power adjustments, and when the wind-driven generator rotating speed surpassed rated speed, speed limit control system separated electromagnetic clutch; Electromagnetic clutch can be closed when speed is reduced to rated speed; And the drive generator for electricity generation, improved the wind energy conversion efficiency of wind-driven generator effectively, make the stable output power of wind-driven generator; And the phenomenon that prevents to damage because of instantaneous electric weight is excessive generator or other electric power facility effectively occurs, and has that reaction speed is fast, a precise control, characteristics that cost is low.
Description of drawings
Fig. 1 is the theory diagram of the utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As shown in the figure, a kind of wind generator system comprises blower fan 1, gearbox 2, accelerator 3, generator 4 and commutation system; The rotating shaft of blower fan 1 connects with the power shaft of gearbox 2, and the output shaft of gearbox 2 connects with the power shaft of accelerator 3, is provided with speed limit control system 5 between accelerator 3 and the generator 4; Speed limit control system 5 comprises encoder 51, single chip machine controlling circuit 52 and electromagnetic clutch 53; The power shaft of electromagnetic clutch 53 connects with the output shaft of accelerator 3, and the output shaft of electromagnetic clutch 53 connects with the power shaft of generator 4, and single chip machine controlling circuit 52 is electrically connected with electromagnetic clutch 53; Encoder 51 is electrically connected with single chip machine controlling circuit 52; Encoder 51 is electrically connected with generator 4, and commutation system comprises rectifier 6, storage battery 7 and inverter 8, and generator 4 is electrically connected with rectifier 6; Storage battery 7 is electrically connected with rectifier 6, and inverter 8 is electrically connected with storage battery 7.
In the foregoing description, electromagnetic clutch 53 adopts slipping toothed electromagnetic clutch, and the model of the single-chip microcomputer in the single chip machine controlling circuit 52 is AT89C51, and accelerator 3 adopts NGW type spider gear accelerator.
The wind generator system operation principle: under the blowing of wind, blower fan 1 rotates, and makes air force can be transformed into mechanical energy; Be rotating speed and moment of torsion, rotating speed and moment of torsion be delivered in the rotating shaft of generator 4, drive the rotating shaft rotation of generator 4 through gearbox 2, accelerator 3 and electromagnetic clutch 53; Thereby make generator 4 send alternating current, encoder 51 is from generator 4 acquired signal, and the signal that the high-low level that encoder 51 collects changes imports single chip machine controlling circuit 52 into; 52 pairs of signals of single chip machine controlling circuit are analyzed, and export still signal to the electromagnetic clutch 53 of outage of a judgement electromagnetic clutch 53 energisings, carry out power adjustments through 53 pairs of generators of electromagnetic clutch; When the rotating speed of generator 4 surpassed rated speed, speed limit control system 5 separated electromagnetic clutch 53, when speed is reduced to rated speed, makes electromagnetic clutch 53 closures; And driving generator 4 generatings, the electricity that sends makes alternating current become the direct current with certain voltage through rectifier 6 rectifications; And charge to storage battery 7; From storage battery 7 output DCs, and it is become 220 volts alternating current after through inverter 8, supply with the user and use.
Claims (6)
1. wind generator system; Comprise blower fan, gearbox, accelerator, generator and commutation system; The rotating shaft of described blower fan connects with the power shaft of described gearbox; The output shaft of described gearbox connects with the power shaft of described accelerator, and described generator is electrically connected with described commutation system, it is characterized in that being provided with speed limit control system between described accelerator and the described generator.
2. a kind of wind generator system according to claim 1; It is characterized in that described speed limit control system comprises encoder, single chip machine controlling circuit and electromagnetic clutch; The power shaft of described electromagnetic clutch connects with the output shaft of described accelerator; The output shaft of described electromagnetic clutch connects with the power shaft of described generator; Described single chip machine controlling circuit is electrically connected with described electromagnetic clutch, and described encoder is electrically connected with described single chip machine controlling circuit, and described encoder is electrically connected with described generator.
3. a kind of wind generator system according to claim 2 is characterized in that described electromagnetic clutch is a slipping toothed electromagnetic clutch.
4. according to the described a kind of wind generator system of claim 2, the model that it is characterized in that the single-chip microcomputer in the described single chip machine controlling circuit is AT89C51.
5. a kind of wind generator system according to claim 1; It is characterized in that described commutation system comprises rectifier, storage battery and inverter; Described rectifier is electrically connected with described generator; Described storage battery is electrically connected with described rectifier, and described inverter is electrically connected with described storage battery.
6. a kind of wind generator system according to claim 1 is characterized in that described accelerator is a NGW type spider gear accelerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203520832U CN202260826U (en) | 2011-09-20 | 2011-09-20 | Wind power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203520832U CN202260826U (en) | 2011-09-20 | 2011-09-20 | Wind power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260826U true CN202260826U (en) | 2012-05-30 |
Family
ID=46122009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203520832U Expired - Fee Related CN202260826U (en) | 2011-09-20 | 2011-09-20 | Wind power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260826U (en) |
-
2011
- 2011-09-20 CN CN2011203520832U patent/CN202260826U/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: 20120530 Termination date: 20140920 |
|
| EXPY | Termination of patent right or utility model |