Performance Analysis of Three Level Diode Clamped Inverter fed Induction Machine using Multicarrier PWM Techniques

Abstract

The Utilization of multilevel inverter technology in induction machine applications is attaining highest interest in the last two to three decades. Out of the three classical multilevel inverter topologies, diode clamped multilevel inverter topology is widely used due to its high efficiency, minimized stress on power switching devices and decreased number of capacitors. This paper presents the performance analysis of three phase, three level diode clamped inverter fed induction machine in open loop operation, as well as closed loop operation with proportional integral controller using different multi carrier pulse width modulation techniques.