论文部分内容阅读
针对D-STATCOM动态补偿装置输出的补偿电流中含有大量的开关纹波等问题,设计LCL输出滤波器以滤除纹波。重点研究LCL输出滤波器各元件参数对滤波器特性的影响,综合考虑D-STATCOM无功补偿容量、补偿电流开关纹波、电网THD、电阻功耗等因素,提出了一种LCL输出滤波器的综合设计方法,并就LCL输出滤波器对D-STATCOM补偿特性的影响进行了仿真研究。结果表明:采用该方法设计的输出滤波器对高频开关纹波有很好的抑制效果,可有效改善D-STATCOM的补偿性能。
For the compensation current output by the D-STATCOM dynamic compensation device contains a large number of switching ripple and other issues, the design of LCL output filter to filter ripple. This paper focuses on the influence of various components of LCL output filter on the filter characteristics. Considering the reactive power compensation capacity of D-STATCOM, current ripple compensation, THD of the power grid, power consumption of resistors and so on, an LCL output filter The integrated design method is used to simulate the influence of LCL output filter on the compensation characteristics of D-STATCOM. The results show that the output filter designed by this method can effectively suppress the high-frequency switching ripple and improve the compensation performance of D-STATCOM effectively.