Power Quality Improvement in a PV Panel connected Grid System using Shunt Active Filter

Abstract

This paper describes improved methodology of power quality at utility end in a grid system connected with renewable source of energy for power generation. With development of new functionalities solar energy based Photovoltaic cells are upcoming energy source with higher efficiency. Solar cells are more preferred as renewable source of energy. Solar energy being naturally available in abundance and non- polluting is one of the most promising sources. Excessive use of power electronics devices lead to power quality problems. Effects of poor power quality like sag, swell distortion in waveform, harmonics, reactive power generation has affected both grid as well as utility sectors. Harmonics are major problem diminishing the power quality. Active Power filter are powerful tool for mitigation of harmonics. Active filter suppress harmonic current and compensate reactive power simultaneously. This paper presents the performance of Shunt active filter with VSI topology using synchronous reference frame theory. By this methodology harmonic suppression is possible within permissible standards as defined by IEEE-519.