关键词: 内置式永磁同步电机, 复合式磁极, 齿槽转矩, 去磁, Ansoft

Abstract:

A combined magnetic pole in IPMSM was proposed. The combined magnetic pole by adopting the combination of rare earth permanent magnet material with ferrite permanent magnet material was used, the air-gap flux density was improved, the cogging torque was reduced. Demagnetization withstand capability was higher. The amount of rare earth permanent magnet materials was reduced.The feature of the hybrid magnetic pole’s magnetic field was analyzed based on Ansoft while the pole was optimized.

Key words: interior permanent magnet synchronous motor (IPMSM), combined magnetic pole, cogging torque, demagnetization, Ansoft