PLL Based Control Technique for Harmonic Elimination using Hybrid Filter

Abstract: This paper comparison between control techniques for Harmonic elimination using hybrid filter. In this, filter operation is based on PQ theory with PI control based active filter logic and PLL logic based hybrid filter is done. The proposed approach is comprised of PLL based series active filter with shunt passive filter. Here passive filter design is done based particular frequency calculations. The . The hybrid filter system is used for many simulation of different loads which reveals that it effectively compensate reactive power as well voltage and current harmonics.

Keyword : Hybrid Filter, Active filter , PLL, PQ theory with PI logic