Grid-connected performance test method for wind power plant reactive power compensation device

Abstract

The invention provides a grid-connected performance test method for a wind power plant reactive power compensation device. The method comprises the steps that 1 a test point for carrying out grid-connected performance testing on the reactive power compensation device is determined; and 2 after the reactive power compensation device is in grid-connected operation for a set time, grid-connected performance testing is carried out on the reactive power compensation device. Compared with the prior art, the grid-connected performance test method for the wind power plant reactive power compensation device has the advantages that the test items comprehensively include capacity and continuous operation ability test, voltage control ability and voltage control precision test, control mode switching ability test and power quality test; the parameter indexes of the wind power plant reactive power compensation device in different states are comprehensively tested; and the grid-connected performance indexes of the wind power plant reactive power compensation device can be accurately reflected.

Description

technical field [0001] The invention relates to the field of new energy access and control, in particular to a method for testing the grid-connected performance of a wind farm reactive power compensation device. Background technique [0002] Wind power is one of the power generation methods with the most mature technology, the most scale development and commercial development prospects in the development of renewable energy. It has been paid more and more attention by countries all over the world and has been widely developed and applied. In recent years, my country's wind power has developed rapidly, and the installed capacity of wind power has doubled every year. The operation of large-scale grid-connected wind turbines has an increasingly important impact on the power grid and users. [0003] For wind farms with large capacity and long-distance transmission, when the wind power output is high, the long-distance transmission of a large amount of wind power will cause the ...

AI Technical Summary

Problems solved by technology

Among them, a considerable part of the reactive power compensation devices configured in the wind farm did not respond in time according to the required time, and the configuration capacity could not meet the reactive power compensation requirements in the event of a fault

[0005] The analysis of wind power large-area off-grid accidents and related test results show that the operating characteristics of wind farm reactive power compensation devices have an important impact on the performance of wind farm grid connection. , directly led to the spread and expansion of the accident

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