Abstract
This paper presents an implementation of hybrid active power filter for minimizing the input current distortion in a single-phase system feeding a non-linear load. In this method, the active power filter is injecting equal but opposite current to mitigate the distortion current shape the supply current to a sinusoidal form and in phase with the supply voltage. In this work, the single-switch parallel active power filter is used to reduce switching stress, losses and also the cost. Studies are performed to evaluate the performance of this topology in conjunction with a simple passive filter in a hybrid arrangement using two components; a parallel active power filter and a passive filter for removing both high order and low order harmonics. The passive filter uses simple LC configuration; whilst the parallel active filter uses a single-switch topology typically used in boost rectifier circuit. Theoretical, simulation and experimental result are presented to prove the validity of this arrangement.
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