Switched Reluctance Machine Drive Analysis with Fault-Tolerant Power Converter

Abstract

There is a growing need for electrical drives to be reliable in a variety of industries. An important area of research in this regard is the switching reluctance machine's (SRM's) reliability. The failure of the drive power semiconductor is a major factor in its performance. Power semiconductor faults cannot be handled by typical SRM drive power conversion topologies. A fault-tolerant power converter topology is described here that allows the drive to function in the case of a switch failure. Changing the direction of the SRM winding current has no influence on machine behavior, hence this converter will be used. Because it can generate numerous phase voltages, SRM speed will determine the voltage levels that can be applied by the proposed power converter. In the Matlab Simulink environment, the SRM drive was tested in both normal and malfunctioning situations. In order to check the performance of the drive, fault-tolerance, we gathered data from a variety of devices and failure modes. The drive's multilayer operation may be verified as well.