Wind electricity-based electric energy quality series compensator

A technology of power quality and series compensation, applied in wind power generation, electrical components, circuit devices, etc., can solve problems affecting promotion and development

Active Publication Date: 2013-01-16
上海阳顿电气制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the problem of energy storage has always plagued the problem of dynamic voltage compensators. Although some advanced methods such as t

Method used

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  • Wind electricity-based electric energy quality series compensator
  • Wind electricity-based electric energy quality series compensator
  • Wind electricity-based electric energy quality series compensator

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0041] see first figure 1 , figure 1 It is a structural schematic diagram of a power quality series compensator based on wind power in the present invention. It can be seen from the figure that a power quality series compensator based on wind power includes: wind turbine 2, synchronous generator 3, rectifier unit 4, three-phase H-bridge inverter unit 5 and series transformer 6;

[0042] The connection relationship of the above components is as follows:

[0043] The wind turbine 2 converts wind energy into mechanical energy, its output mechanical shaft is connected with the rotor shaft of the synchronous generator 3, and the stator alternating current output end of the synchronous generator 3 is connected with the input end of the rectification unit 4; The output end of t...

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Abstract

The invention discloses a wind electricity-based electric energy quality series compensator. The wind electricity-based electric energy quality series compensator comprises a wind turbine, a synchronous generator, a rectification unit, a three-phase H-bridge inverter unit and a series transformer and is connected in series with a power grid; when the power grid runs normally, the electric energy quality compensator converts wind energy into electric energy and outputs power to load; when the voltage of the power grid drops or rises suddenly (surges) due to the failure of the power grid, the electric energy quality compensator outputs the corresponding compensating voltage, so that the voltage of the load end is kept unchanged; and therefore, the load can be protected from being influenced by the failure of the power grid. By using the wind energy, the problems in the energy storage of the conventional series compensator are solved; and the wind electricity-based electric energy quality series compensator has the characteristics that by wind energy generation and energy storage, the problem that the voltage drops and rises suddenly can be solved, and the electric energy quality is improved.

Description

technical field [0001] The invention relates to the technical field of power quality, in particular to a power quality series compensator based on wind power. Background technique [0002] Developed countries have very high requirements on power quality. Power quality problems will not only bring great economic losses to the industry, such as shutdown and restart, which will increase production costs, damage responsive equipment, scrap semi-finished products, and reduce product quality. Marketing difficulties will damage the company's image and good business relations with users, etc., and will also bring harm to equipment in important power-consuming departments such as medical care, causing serious production and operation accidents. Research by the American Electric Power Research Institute (EPRI) shows that electric energy Quality problems lead to US$30 billion in losses in data, materials and productivity in the U.S. industry every year (Electric Power Research Institut...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J9/00
CPCY02E10/763Y02E10/766Y02E10/76
Inventor 李国杰江秀臣盛戈皞
Owner 上海阳顿电气制造有限公司
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