Comparison of torque ripple reductions and copper losses of three synchronous reluctance machines

International audienceThis paper compares the torque ripple reductions of three synchronous reluctance machines (SynRMs) with differentrotor topologies. Based on the proposed torque ripple reduction method, the optimal currents with different current’s harmonicsof the three SynRMs are calculated to decrease torque ripple. The results are analyzed and compared. Besides, the copper losses produced by the added current’s harmonics are also obtained and studied. Based on the analysis of the torque ripple reduction and copper losses, the choosing strategy of optimal order of current’s harmonics is discussed. At last, several common conclusions are summarized by comparing the results among the three SynRMs