Analysis of SRM drives behaviour under the occurrence of power converter faults

This paper presents an analysis of the switched reluctance motor dynamic operation under power converter fault conditions. Open- and short-circuit faults in the converter power switches are considered. Normal operating results are also included, as a reference. Time-domain waveforms of the phase currents, electromagnetic torque, power converter supply current and mechanical speed are presented and discussed as well as the spectral analysis of the power converter supply current and electromagnetic torque. The paper also presents a switched reluctance motor model, used for the power converter fault analysis simulation studies.