Design of harmonic filters for photovoltaic energy applications

Abstract

The main idea behind this paper is to extract maximum power from solar photovoltaic system by using LMS filter technique and also to reduce the harmonics in five phase inverter drive by using single tuned filter technique to increase the efficiency and smooth operation of the motor. Harmonics are usually generated in the system because of non-linearities present in the load as well as the components such as transformer, relay circuits, connected switches, capacitor, high inductive load used for industrial applications etc. which in turn leads to reduction in power factor, drop in the voltage and heat losses. Therefore a suitable model is implemented in Matlab/Simulink by the combination of Single Tuned Filter and LMS filter which helps to extract the maximum power on the generation side and also to improve the performance analysis of five phase inverter before using it for industrial load.