Análise da qualidade de energia elétrica em baixa tensão: estudo de caso em um ambiente universitário

Abstract

Currently the study of electric power quality is a topic of great interest for both the scien-tific community and industry. In this sense, the harmonics distortions are voltage and current characteristics of the electrical system that deserve attention especially because circulation can produce these interactions with various components installed causing disturbances in the electrical system on site and adjacent systems, compromising the functioning of electronic equipment. The paper presents a general review of the harmonic distortions and solutions to minimize these disturbances, followed by a case study in a university environment based on measurements taken over a period of four months. After analyzing the data provided by the power quality meter, was performed modeling the load on PSIM simulator and simulation results obtained with a parallel active filter. To compensate for current harmonics is used par-allel with an active filter based generation references Instantaneous Power Theory, presenting a satisfactory result for the reduction of the levels of harmonics, unbalance and reactive power compensation.