Torque Ripple Reduction of IPMSM with Concentrated Winding Based on Adaptive Identification of Equivalent Torque Coefficient

This paper proposes a torque ripple reduction of IPMSM with concentrated winding based on the adaptive identification of the equivalent torque coefficient. First, a torque ripple estimation method is derived. Next, the torque ripple reduction is proposed, which are based on the adaptive identification of the equivalent torque coefficient. In order to improve the performance of the proposed method, however, it is necessary to improve the performance of the adaptive mechanism. Therefore the EMF harmonic model as one of the parameters is utilized and the implementation of the adaptation mechanism by Mixed Euler method is introduced. Finally, the performance of the proposed method is experimentally evaluated to show the feasibility of the proposed method.