COMPARISON OF TRADITIONAL PWM INVERTER AND A COMPONENT MINIMIZED Z-SOURCE INVERTER FOR AC DRIVES

Abstract

In this paper, two different inverters: Traditional PWM inverter and component minimized [four switch three phase (FSTP)] Z-source inverter for Induction Motor Drive were investigated. Total switching device power of each of these inverters was calculated. For purposes of comparison, an example of the total switching device power, requirement of passive components, efficiency, and the constant power speed ratio of the different inverters powered by the same source and loaded by the same motor were conducted. This comparison shows that the Z-source inverter is very promising for Induction Motor Drive.