新型单周控制三相四线制并联混合型有源电力滤波器研究

Study of A Novel Three-phase Four-wire Parallel Hybrid Active Power Filter with One-cycle Control

提出了1种基于单周控制单极调制方式的新型三相四线制并联混合型有源电力滤波器(activepowerfilter,APF)结构,以解决四桥臂和三桥臂结构分别存在的开关损耗大、控制结构复杂等问题,同时该方案不需要单独对中线电流进行补偿,且能有效地解决直流分量问题。对新型结构进行了建模,推导了单周控制方程,最后进行了MATLAB仿真验证,结果证实了该方案的可行性。

A novel three-phase four-wire parallel hybrid APF with one-cycle control under unipolar modulation is proposed, in order to solve the exist problems such as switching loss and complicated control circuitry of four-legs and three-legs, the novel project doesn＇ t need to compensated the midline current alone, and the DC component are solved effective. Then founded a model of the novel structure, derived the goal equation of one-cycle control, finally conducted a simulation experiment using MATLAB. The simulation results verify the feasibility of the program.