A method and test bench for testing the dynamic performance of a wind power generating set

Abstract

The invention discloses a method and test bed for testing dynamic performance of a wind generating set, and relates to the technical field of wind power generation. The method comprises the steps that when an asynchronous motor is started, the working mode of the asynchronous motor is adjusted into the asynchronous motor mode, and the control mode of a double-fed frequency converter is adjusted into a V / F control mode suitable for the asynchronous motor mode; the double-fed frequency converter controls the operation of the asynchronous motor in the V / F control mode, and after the revolving speed of the asynchronous motor reaches the revolving speed allowed by the double-fed mode grid connection, the working mode of the asynchronous motor is adjusted into the double-fed mode, and the control mode of the double-fed frequency converter is adjusted to the vector control mode suitable for the double-fed mode; the double-fed frequency converter controls the operation of the asynchronous motor in the vector control mode to enable the asynchronous motor to drive a wind generating set to be detected to operate, and after the revolving speed of the wind generating set to be detected reaches the revolving speed allowed by the wind generating set grid connection, the wind generating set to be detected is connected to a grid so that the dynamic performance of the wind generating set to be detected can be detected conveniently.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method and a test bench for testing the dynamic performance of a wind power generating set. Background technique [0002] The test bench for testing the dynamic performance of wind turbines is an important equipment for testing the dynamic performance of wind turbines. After the static debugging of the wind power generating set to be shipped out of the factory, dynamic debugging needs to be continued, so as to obtain the dynamic operation performance of the wind power generating set. When encountering abnormal conditions, such as failure to connect to the grid, failure of the unit to run at full power, power curves that do not meet the requirements, etc., it is necessary to repair or replace the corresponding equipment in time for related debugging and maintenance. [0003] At present, there are mainly three types of test benches built in the industry for testing...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method and a test bench for testing the dynamic performance of wind power generators, which can better solve the problems of complex structure and high cost of the test bench

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