Mitigation of Harmonics of Single-Phase Inverter Using Passive Filter

Abstract

In electrical power system power quality is a major issue that’s why we always focus on PQ. This paper presents mitigation of harmonics of single phase inverter by using passive filters. Under normal situation, a three-phase inverter generates high-order harmonics, which can generally be filtered by low pass filter, while Single Phase inverter generates not only high-order harmonics but also low-order harmonics even in normal situation, which is hard to be eliminated. In this research work, a Passive filter is designed in order to diminish the harmonics generated at the output of single phase inverter to improve the performance of device toward it is connected. The results have been obtained with and without installation of filters and finally observed that after installation of filters the harmonics of current are reduce and power factor is improved.