Optimized Model of an Inset-Permanent Magnet Machine with Low-Cost Ferrite Magnet to Acquire Improve Electro-mechanical Performances

This paper offers an optimized design of the Inset-Permanent Magnet Machine (Inset-PMSM) using a low-cost ferrite magnet to get reduced cogging torque and improved efficiency. To maximize the efficiency and to reduce the torque ripple, this study includes four different types of Inset-PMSM that are chosen according to their length of air-gap (i.e., 0.35mm and 0.70mm) and thickness of permanent magnets (i.e., 4mm and 6mm) embedded in the rotor. Electromechanical performances were calculated with MATLAB and Finite Element Analysis software (FEMM 4.2). Based on the results from MATLAB and FEM analysis, finally, an optimized designed model is proposed.