Multi-split vertical axis wind turbine system and control method thereof

A technology of a wind turbine and a control method, which is applied to the control of wind turbines, wind turbines, and combinations of wind turbines, etc., can solve the problems of low working efficiency of generators, failure of generators to reach rated power, etc. The effect of increasing the power generation time and expanding the working wind speed range

Inactive Publication Date: 2015-04-22
SHANDONG UNIV
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  • Application Information

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Problems solved by technology

That is, when the wind speed is cut, it can drive the generator to start generating electricity, but at this time the generator is far from reaching the rated power, so the working efficiency of the generator is very low

Method used

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  • Multi-split vertical axis wind turbine system and control method thereof
  • Multi-split vertical axis wind turbine system and control method thereof
  • Multi-split vertical axis wind turbine system and control method thereof

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as Figure 1-Figure 2 As shown, the present invention is realized through the following technical solutions, including a vertical axis wind turbine, multiple generators, a cut-in and cut-off controller, a wind speed detection device and a control strategy of the controller. According to the wind speed, the cut-in and cut-out control of each generator can be carried out to maintain the best match between the output power of the wind turbine and the generator set, and improve the power generation efficiency. Control block diagram see image 3 .

[0029] It is most suitable for one wind turbine to drive 2-4 generators, and the following will be described as one for four.

[0030] Obtain wind energy formula according to wind turbine The wind speed detecting device sends the detected wind speed to the controller.

[0031] When the wind spee...

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Abstract

The invention discloses a multi-split vertical axis wind turbine system and a control method thereof. The system comprises a vertical axis wind turbine, a plurality of generators, a controller, a wind speed detection device and a supporting platform, wherein the vertical axis wind turbine is fixed onto the supporting platform, the generators are uniformly distributed on the periphery of the vertical axis wind turbine along the center of the vertical axis wind turbine, the vertical axis wind turbine controls cut-in and cut-out of each generator through the controller, and the controller is connected with the wind speed detection device and receives real-time wind speed acquired by the wind speed detection device. Cut-in wind speed can be reduced, and power generation time is prolonged. As only one generator works at the beginning, load is low, the wind turbine can easily drive the generators, full-load work of the generators is realized, the power of the wind turbine in the running process of power generation is constantly matched with the overall power of the generators, each generator basically works in a rated state, and the working efficiency of the generators is improved.

Description

technical field [0001] The invention relates to a one-drag multi-vertical axis wind power generator system and a control method thereof. Background technique [0002] The current structure of large vertical axis wind turbines is generally a wind turbine with a generator for power generation. When the wind speed is low (near the cut-in wind speed), due to the small wind power received, the wind turbine running at this time is far from reaching the rated power. , so the operating efficiency of the generator driven by it is also very low. That is, when the wind speed is cut in, the generator can be driven to start generating electricity, but at this moment, the generator is far below the rated power, so the working efficiency of the generator is very low. If the wind turbine drives a low-power generator at this time, and the low-power generator is almost working at the rated power state, the efficiency of the generator will be greatly improved. That is to say, as the wind chan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D9/00F03D7/06
CPCF03D7/06F05B2270/104F05B2270/32Y02E10/74
Inventor 刘淑琴边忠国钱宝锟
Owner SHANDONG UNIV
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