Cogging torque reduction of Interior Permanent Magnet Synchronous Motor (IPMSM)

In this paper, the torque ripple of Interior Permanent-Magnet Synchronous Motor (IPMSM) is reduced using combination of two separate ideas. These two ideas are segmented PM rotor and modied the rotor structure based on pole-arc ratio of ux barrier optimization. In addition, the torque ripple is decreased due to the reluctance torque component reduction. Analysis and simulation results, including saturation, were performed using analytical method and Finite-Element Method (FEM). The conguration of rotor ux barrier of the proposed design was carried out by Response Surface Method (RSM) as an optimization technique, veried by FEM.