三相四线制系统下电流谐波和无功功率的检测与补偿

Detecting and compensation of harmonic currents and reactive power in 3 - Phase 4 - Wire

本文提出了一种三相四线制系统下电流谐波和无功功率的补偿方法,给出了αβο坐标系下广义瞬时 电流的定义,分析了瞬时无功功率在三相四线制系统下的物理意义,并给出了该系统下谐波电流和无功功率补 偿电路,基于此电路的仿真结果表明该补偿方法能有效消除电流谐波及无功功率。

A novel method of instantaneous current compensated for reactive power in 3 - phase 4 -wire system is proposed in this paper, which is based on new defined of generalized instantaneous reactive current in 3 - phase 4 - wire in coordinates. Research of instantaneous reactive power in 3 - phase 4 - wire based on coordinates and good simulation results are also presented in this paper.