Abstract
This paper presents the performance evaluation of a hybrid filter for current harmonic elimination and improved input power factor. Hybrid filter consists of a shunt active power filter and passive filters. In the proposed scheme, shunt active power filter operates at a very low switching frequency, thus giving higher conversion efficiency. The combined operation of shunt active power filter and passive filter ensures THD of source current within the permissible limits set by various regulatory agencies and near unity supply power factor. The effectiveness of the hybrid filter has been verified by the extensive simulation results carried out in MATLAB/Simulink and SimPowerSystem software.
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