Asymmetric cascaded Multilevel Inverter for electric vehicles

Multilevel Inverter (MLI) is the advanced power electronic inverter circuit which is most commonly used for producing higher output voltage levels for the drive system applications. Different topologies of multilevel inverter have been reported in the literature, but this paper mainly focuses on the asymmetrical cascaded multilevel inverter circuit with reduced number of input DC sources. This paper presents the application of a novel Carrier Phase shift Pulse Width Modulation (CPSPWM) technique for producing seven level inverter output with reduced Total Harmonic Distortion (THD) with a single phase induction motor load. The simulation of the proposed topology along with its control circuit is done using MATLAB/SIMULINK.