The simulation research of improved harmonic detection algorithm based on fuzzy PI control

This article mainly introduces the harmonic detection algorithm of harmonic restrain. The traditional algorithm harmonic detection has some disadvantages that can not directly regulate main circuit of AC and DC side energy exchange, but affects the performance of active power filters which are insufficient, this article puts forward improved harmonic detecting algorithm based on fuzzy PI control in the active power filter. And using the simulink of MATLAB to create the model of the improved algorithm. The simulation results show that by adding fuzzy PI compound control in the main circuit can effectively optimize the traditional algorithm of harmonic detection, and improve the APF compensation harmonic current performance, and optimize the quality of power system.