Design and Implementation of Modified Multilevel Inverter FED BLDC Motor for Electric Vehicle Application

Abstract

In this work a modified hybrid multilevel inverter with reduced device is proposed. The system considerably reduces the quantity of power electronic power switches to twenty-one so as to create fifteen level three phase output, whereas conventional structures require higher number of power devices. Higher number of power switches leads to increased distortion, losses and cost. The recommended circuit gives better response, higher efficiency, reduced cost, high reliability and fault tolerance. Decrease in number of power switches, intensely diminishes the convolution of the switching circuitry.