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Torque ripple reduction of SRM by optimization of current reference

The present paper introduces new current profiles for torque ripple reduction of the SRM. A reduction method using the ideal current profile for instantaneous flat torque has been proposed [1]. The problem with this method is that, as the rotation speed increases, the real current cannot keep up with the reference for the requirement of a high di/dt. This results in increasing torque ripple in the high-speed region. In order to overcome this problem, we propose a novel method for improving the traceability of the real current by changing the reference shape. The validity of the newly obtained current reference was examined by MATLAB/Simulink-based simulations.