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Present paper deals with the implementation of parallel three-phase active power filter used to compensate current harmonics, to correct the displacement between voltage and current generated for capacitive or inductive loads and, by the implementation of the control strategy here described, to perform the current balancing for the three phases, minimizing the neutral current. The reasons for the choice of this topology and the adopted control strategy are presented as well as the mathematical analysis, design procedures, simulation and laboratory results. As final stage of the developing a prototype with 10 kW was built.
Date of Conference: June 30 2008-July 2 2008