Comparative Analysis of the Permanent Magnet Synchronous Motor Topologies and the Impacts of Temperature on Their Performance

This paper analyses the influence of the increased operating temperature on the performances of five PMSM topologies designed with identical general specifications and constraints. The studied topologies are Surface-mounted Permanent Magnet Synchronous Motor (SPMSM), Halbach Permanent Magnet Synchronous Motor (HPMSM), Inlet Permanent Magnet Synchronous Motor (IPMSM), Spoke Interior Permanent Magnet Synchronous Motor (SIPMSM), and V-shape Interior Permanent Magnet Synchronous Motor (VIPMSM). The electromagnetic torque, back-EMF, and the permanent magnet magnetic flux density are analysed for four operation temperature levels (20°C, 60°C, 100°C, and 140°C). The analysis provides insights on the aspects to be considered for further development of online detecting, locating, and quantifying the degree of PM demagnetisation in PMSM.