Analysis of Torque Dynamics for Switched Reluctance Drives with Instantaneous Torque Control

This paper presents an analysis of torque dynamics of switched reluctance drive systems with instantaneous torque control. Torque dynamics is useful information in designing drive components, i.e. machine, converter and controller. When developing a switched reluctance drive, torque dynamics has to be taken into account in many design aspects, e.g. switching frequency of converters, sampling time of digital controllers, torque step rise and resulting torque ripples. This paper derives mathematical methods for calculating torque slope for both small signal and step response considerations. Finally, the application of the calculated torque dynamics in design procedures of switched reluctance drives is presented