Research on Measurement of Flicker Source in Power System

It is necessary to distinguish the source of power quality disorder for settling power quality problem.In this paper,a power system simulation model of two load branches is built.Then FFT algorithm is used to get two primary inter-harmonic character parameters by analyzing the voltage and current signals collected from every load branch.The source of flicker is distinguished by judging positive and negative of power factor.The results show this method is effective.