Study of Total Harmonic Distortion (THD) Reduction by Filter in Renewable Energy Inverter

Abstract

This paper is about study of Total Harmonic Distortion (THD) reduction by using filter in inverter output circuit. As the trend of renewable energy is increasing, there is a need of low cost inverter with sufficient good power quality output. First inverter output is found in different mode of operation then LC filter is connected across load and modified response is found and THD is compared for different types of working modes. Low THD is very important for improved power quality. For result, simulation of inverters is created in MATLAB/Simulink Software and THD from their out responses is compared to get the best topology for good power quality.