Design and comparison of two non-rare-earth permanent magnet synchronous reluctance motors for EV applications

As a response to the rare earth crisis arising in recent years, two new permanent magnet synchronous reluctance (PMSynR) motors with non-rare-earth materials are proposed for electric vehicle (EV) applications in this paper. The key feature of the motor is to adopt different magnet and flux-barrier combinations to obtain relatively high torque density, high power density and high efficiency. To verify the validity of the proposed motors, the electromagnetic performances are compared by using finite-element (FE) method.