一种风电变流器Chopper装置的测试方法

The test method for the Chopper device of wind power converter

为保证电网低电压穿越故障下风电机组能正常运行,需要在风电变流器直流母线接入Chopper装置进行短暂能量控制。本文提出一种利用现有功率测试平台和软件模拟电网低电压穿越故障的方法来测试Chopper装置的电气性能。测试方法经济实用,具有很好的应用前景。实验结果验证了此方法的可行性。

In order to ensure that the wind turbines can normally operate under the low voltage ride through fault of the grid,a Chopper device is necessary to access to the wind power converter DC bus for transient energy control.A method of using the existing power test platform and software to simulate the low voltage ride through fault of the grid is proposed to test the electrical performance of the Chopper device.The test method has a good application prospect because of its economy and practicality.The experimental results verify the feasibility of the proposed method.