Single-phase shunt active power filter with harmonic detection

An advanced active power filter for the compensation of instantaneous harmonic current components in nonlinear current loads is presented. A signal processing technique using an adaptive neural network algorithm is applicd for the detection of harinonic components generated by nonlinear current loads and it can efficiently deterininc the instantaneous harmonic components in real time. The validity of this activc filtering processing system to compensate current harmonics is substantiated by simulation results.