Power Quality Improvement Using Hybrid Active Power Filter Based Fuzzy Logic Controller

Document Type : Original Article


1 Electrical Engineering Department, Faculty of Energy Engineering, Aswan University

2 Electrical Engineering Department, Faculty of Engineering, Aswan University


The utilization of non-linear loads has become major concern especially in an industrial power system. The operation of these loads creates harmonics. If the harmonic occurs at the same frequency when the power system is at resonance, it could result in amplification of the harmonic distortion (harmonic resonance). The installation of filters is important to avoid permanent damage to the electrical equipment. This paper presents a connection of the hybrid active filter in series with the passive filter without transformer to damp the harmonic resonance as well as to mitigate the harmonic voltages and currents. Also, address the frequency analysis method to observe the effect of parallel and series resonant in power system. The studied system is modelled and simulated using MATLAB/Simulink software.