Modeling and Performance of a SRM Drive with Improved Ride-Through Capability

One of the problems with the switched reluctance motor (SRM) drive, which is a problem of increasing concem for all drives, is the ability to ride through dips or short duration power outages of several power cycles. In this paper, the modeling and performance of a chopper-controlled SRM drive is presented with the aim of improving its ride-through capability. Super capacitors are used in the power supplies of the driver and logic circuits to allow them to operate in the absence of mains power. Practical measurements of the improved ride-through capability are included.