Four quadrant operation of SRM drive based on modulated torque sharing function

Abstract

This paper presents the four quadrants operation for switched reluctance motor (SRM) drives based on the modulating torque sharing function (TSF). SRM is a nonlinear motor and has torque ripple issues whenever the two phases overlap. The conventional TSF's have predefined function, which are limited to machine specific and have high torque ripple. In this paper, a modulated TSF is proposed, which modulating the torque profile based on the nonlinear inductance and machine currents. In this paper, the torque sharing function is defined in all the quadrant and modulating based on the outgoing current during overlap period. Different results are obtained and analysed in all the quadrants to see the performance of the SRM.The proposed algorithm is verified using Matlab Simulink, and the results are reported.