Advanced non-linear logic torque sharing function of SRM for torque ripple reduction

Abstract

In this paper, an advanced torque control scheme of SRM(Switched Reluctance Motor) using modified non-linear logical TSF(Torque Sharing Function) based on the DITC(Direct Instantaneous Torque Control) with PWM(Pulse width modulation) is presented. The proposed torque controller uses the non-linear logical TSF and switching rules which realized by DITC, however the switching period is calculated by the torque error. Therefore a simple calculation of non-linear logical TSF and DITC with PWM can be reduce the torque ripple with fixed switching frequency. The proposed control scheme is verified by the computer simulations and experimental results.