Projeto, análise e simulação de filtro ativo paralelo trifásico

Abstract

This work describes design and simulation of shunt active power filter (SAPF) applied to three-phase three-wire electrical systems. The purpose of this device is to mitigate harmonic currents presents in the grid and compensate reactive power. The SPAF consists of a bi-directional converter capable of synthesizing compensation currents and a control circuit to obtain current references. The obtaining the references for the filter are based on the synchronous reference frame (SRF) method, based on the Park’s transform. The methodology of component sizing, system modeling and control loop design are described. In order to evaluate the operation and dynamic response of the filter, simulations are performed in a computational environment, with different operating situations. The active filter presented a satisfactory performance guaranteeing the harmonic compensation and power factor correction for the different types of load tested, thus validating the methodology proposed in the work.