并联混合型有源电力滤波器谐振注入支路设计

Resonance injection branch design of hybrid active power filter

注入支路作为并联混合型有源电力滤波器(HAPF)的重要组成部分,其参数设计合理与否对整套滤波装置的性能将产生较大的影响。以此为切入点,就目前探讨较少的串联谐振注入式并联HAPF谐振注入支路参数的设计进行研究,通过结合已有的工程经验,以结构原理分析为基础,从滤波性能和安全性能2个方面探讨谐振注入支路对装置整体性能的影响,提出以系统电网背景谐波分析为基础,结合装置其他部分的设计情况,以基波谐振支路补偿谐波分流最小为目标,以满足基波无功补偿需求和装置有源部分承受电压为约束条件,从无功容量、有效补偿输出能力和安全稳定性能3个方面进行该支路参数的综合优化设计。仿真实验对比和装置现场运行表明,该方法设计的注入支路参数能够保证整套装置更为安全高效的运行。

The parameter design of resonance injection branch is studied for HAPF（Hybrid Active Power Filter）. Combined with engineering experiences and based on structural analysis, the influence of resonance injection branch parameters on the filter and safety performance of HAPF is discussed. It is proposed to synthetically optimize the parameter design of resonance injection branch in reactive power capacity, power compensation capability and system stability, which takes the background harmonic analysis as the basis, the minimum compensating harmonic current of fundamental resonance branch as its objective, and the requirement of fundamental reactive compensation and withstanding voltage of power components as the constraints. The simulative test and site operation show that, the designed parameters ensure the safe and effective operation of HAPF.