A new power converter for SRM drive

Abstract

Switched Reluctance Motor (SRM) is becoming more and more popular for high speed industrial application environments due to its rugged and robust construction. For low-cost variable-speed drives, SRM are most widely used in competition with induction motors, brushless dc motors, or other conventional ac motors because of their simpler design and higher operating speeds. This paper analyzes and presents the problems associated with Miller converter and modified Miller converter used for powering SRM drive. An improved converter configuration which contains (2N-1) devices is proposed in this paper to overcome the drawback of these power configurations. This new topology provides improved utilization of the devices. A detailed explanation and demonstration of the converter circuit using simulation studies have been presented.