Design and analysis of symmetric and asymmetric multilevel inverter for renewable energy applications

Abstract

Multilevel converters offer high power capacity, connected with high quality output and lower compensation misfortunes. Utilization of multilevel inverters (MLI) for higher voltage objectives in renewable vitality has turned out to be more prevalent. In this paper, at first another topology for sub-multilevel inverter is proposed and afterward arrangement association of the sub-multilevel inverters is proposed as a summed up multilevel inverter. The proposed multilevel inverter utilizes lessened number of exchanging gadgets. Uncommon consideration has been paid to acquire ideal structures seeing diverse criteria, for example, number of switches, standing voltage on the switches, number of dc voltage sources, and so forth. The proposed multilevel inverter has been dissected in both 9-level symmetric and 31-level asymmetric configurations. For exchanging measure up to equal step technique and fundamental frequency switching strategies are utilized and near investigation is done between them. Verification of the expository results is performed utilizing MATLAB/SIMULINK programming and Laboratory proto type was implemented for 31-level asymmetric configuration with fundamental frequency switching technique.