Evaluation of Permanent Magnet Assisted Synchronous Reluctance Motor for Light Electric Vehicle Applications

This paper presents a comparative analyses of permanent Magnet Assisted Synchronous Reluctance (PMA-SynRel) Motor, equipped with rare-earth and non rare-earth permanent magnets. SmCo28 and NdFeB35 are used in the rare-earth category, while the non rare-earth category uses AlNiCo9 and Ferrite magnets. The performance of SynRel motor with each magnets are examined by Finite Element Analysis (FEA) using Ansys Maxwell. The impact of variation in average torque and saliency with insulation ratio is also taken into account in the design process. To conclude, a detailed comparison is presented between the conventional and PMA-SynRel motor for traction applications where, high torque density and low torque ripple are the major requirements for electric motors.