The Harmonic Resonance In A Distribution Power System Using An Active Filter With Fuzzy Based Resonant Current Control

Abstract

According to the project we are implementing an active filter with resonant current control which is proposed to suppress harmonic resonance. Therefore the  proposed hybrid filter will be  operated as variable harmonic conductance according to the voltage total harmonic distortion, so that the harmonic distortion can be decreases to an acceptable level in response to load change or parameter variation of power system. Therefore by using the fuzzy control in this project. So that the harmonic distortion can be reduced by suppressing the harmonic resonance using the hybrid active filter, which is operated as variable harmonic conductance according to the voltage total; harmonic distortion. Moreover according to the proposed control method, reactive power compensation will be achieved successfully with perceptible amount. The current control is realized by parallel-connected band-pass filters tuned at harmonic frequencies to ensure that the active filter functions as an approximately pure conductance. A shunt active filter operated as a harmonic conductance is able to suppress harmonic resonance in the distribution power system. Here we are using the fuzzy controller compared to other controllers i.e. the fuzzy controller is the most suitable for the human decision-making mechanism, providing the operation of an electronic system with decisions of experts. By using the simulation results we can analyze that the active filter with the resonant control provides better damping performance compared with other control methods.