关键词: 高频轴向磁通永磁电机, 交流铜耗, 槽型尺寸, 导体尺寸, 解析计算

Abstract: When the high frequency axial flux permanent magnet motor runs under load, there is a large AC copper loss in the armature winding. Analysis and calculation of AC copper loss mainly rely on finite element method, and the simulation model occupies large resources and takes long time. Using the precise subdomain method, an analytical model for the AC copper loss of a high frequency axial flux permanent magnet motor considering various spatiotemporal harmonics was established. The calculated model took into account the effects of slot size and conductor size on the AC copper loss. A 7 kW high frequency axial flux permanent magnet motor was taken as an example. The accuracy of analytical calculation was verified by finite element method. The influencing factors of AC copper loss were also researched.

Key words: high frequency axial flux permanent magnet motor, AC copper loss, slot size, conductor size,analytical calculation