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Small wind power generation power controller

A technology for power controllers and wind power generators, applied to the frequency and voltage control of generators, wind power generation, wind power engines, etc., can solve the problems of uneconomical and practical, easily damaged application speed sensors, high cost, etc., and achieve poor reliability, Low cost, high cost effect

Inactive Publication Date: 2013-06-19
RES INST OF BIT & ZHONGSHAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Some wind power controllers detect the speed through the speed sensor. Although the accurate speed can be obtained in this way, the cost is high. Moreover, the speed sensor transmits the signal through the brush slip ring, which is easily affected by wind and sand in the application. Fault
Therefore, the application of the speed sensor is easily damaged, which is not economical and practical

Method used

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  • Small wind power generation power controller

Examples

Experimental program
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Embodiment

[0023] Embodiment: a kind of small wind power generation power controller, comprises:

[0024] Wind generator 101 , rectifier module 102 , brake control module 103 , rotational speed detection module 104 , full digital controller 105 , buck-boost DC / DC converter 106 , battery 107 , and DC load 108 . The output of the wind power generator 101 is connected to the input of the rectification module 102, a braking control module 103 and a speed detection module 104 are connected in parallel between the wind power generator 101 and the rectification module 102, the input end of the braking control module 103 is connected to the wind power generator 101 output terminals a, b and c are connected in three phases, the input terminal of the speed detection module 104 is connected to the output terminals a and b of the wind power generator 101, and the output terminal of the rectification module 102 is connected to the input terminal of the buck-boost DC / DC converter 106 The output end of...

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Abstract

The invention discloses a controller of a small wind-driven generator, and belongs to the technical field of controllers of clean energy. A small wind power generation power controller comprises the wind-driven generator, a rectifying module, a boosting step-down direct current (DC) / direct current (DC) convertor, a rotating speed detection module, an all-digital controller, a storage battery and a direct-current load. The small wind power generation power controller achieves a speed detection function by detecting a line voltage frequency of the wind-driven generator, and is low in cost, high in reliability, and free from an extra speed sensor which is added to the wind-driven generator, thereby being capable of accurately conducting tracking and controlling of a maximum power spot. The small wind power generation power controller utilizes a target power curve to calculate the maximum power spot, and is high in accuracy, fast in response, free from generating oscillation, and beneficial to improvement of generating efficiency of a system.

Description

technical field [0001] The invention relates to a small wind power generation power controller, which belongs to the technical field of clean energy wind power generation controllers. Background technique [0002] Wind energy is a new energy source with great potential. Due to its cleanliness and renewability, it has attracted the attention of researchers all over the world. Its potential is huge, the global wind energy is about 2.74×109MW, of which the available wind energy is 2×107MW. China's wind energy reserves are large and widely distributed. The wind energy reserves on land alone are about 253 million kilowatts. Wind power generation will have very broad development prospects. [0003] However, in practical applications, relying on natural wind to drive wind turbines to generate electricity is very unstable, and the output power changes frequently and irregularly. Common wind generators mostly use permanent magnet synchronous generators, and at a certain wind speed...

Claims

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Application Information

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IPC IPC(8): H02P9/44H02H7/06F03D9/00
CPCY02E10/72
Inventor 冬雷张晗邵立伟林业海
Owner RES INST OF BIT & ZHONGSHAN
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