A high-temperature superconducting (HTS) axial flux permanent magnet (AFPM) machine was designed, using superconducting bulks over the rotor surface and rare-earth magnets in the middle of the stator teeth. Because of diamagnetic behavior of the HTS bulks and zero field cooling, leakage flux significantly reduces in the proposed machine compared to the existing machine with mounting rare-earth magnets. Three-dimensional finite element (FE) modelling was used to validate the design performance. The magnetic flux distribution, induced electromotive force (EMF), inductance, PM flux, losses, total harmonic distribution and cogging torque are computed and compared in two structures. The results show that the proposed machine structure is more efficient than the existing one.

设计了一种高温超导（HTS）轴向磁通永磁体（AFPM）机器，在转子表面上使用超导块，在定子齿的中间使用稀土磁体。由于高温超导块的抗磁特性和零磁场冷却，与安装了稀土磁体的现有机器相比，该机器中的漏磁通量显着降低。使用三维有限元（FE）建模来验证设计性能。计算并比较了两种结构的磁通量分布，感应电动势（EMF），电感，永磁通量，损耗，总谐波分布和齿槽转矩。结果表明，所提出的机器结构比现有的机器结构更有效率。