Performance Investigation of Sub Multilevel Inverter with Reduced Number of Switches

Abstract

Power electronic (PE) converters have many applications and in multilevel inverter the output can be achieved by combining quite a lot of DC sources. Generally Cascade H-Bridge (CH-BMLI) multilevel inverter needs more sources of DC and switches to raise the levels of output voltage. This paper evaluates the performance of sub (S-MLI) multilevel inverter to generate 17 level output with less DC links and switches with reduced THD. This can be achieving by using both unidirectional and bidirectional switches. The simulation results encourage the proposed sub multilevel inverter replacing the general topologies.