Design of a Single Phase H- Bridge Cascaded Multi Level Inverter (9 Level) for Solar Powered Utilities

Abstract

Nine level inverter and converter which is used for solar powered utilities was proposed. The inverter has 7 switches in main circuit and 1 switch for high frequency switching for the generation of nine level output. The output in the inverter reduces overall THD, loss due to switching and improves the efficiency of the power in the output. In this paper the control circuit is simplified by using capacitors to balance the voltage automatically. Using MATLAB/Simulink simulation results are explained in detail.