In this paper, the design, simulation and construction of two high-speed permanent magnet motors with an interior permanent magnet (IPM) rotor and two different stators with and without slot have been investigated. In high-speed motors, due to high excitation frequency, problems such as high mechanical loss, attraction force between rotor and stator, high core losses in stator and skin effect on wire etc. occur. In this article, it is proved that by removing the stator slots of high-speed motors, many of these mentioned problems are solved. The electromagnetic design of two motors was investigated according to nominal values and design equations. In this case, the number of poles, coils and outer diameter of two motors were assumed to be the same. Due to the elimination of the slots, the air gap flux density in the slot-less stator is lower than the structure with a slotted stator, which leads to the higher number of coils turns per phase. Then the simulation of the two motors was evaluated using the finite element method for comparison, and some parameters of the two motors such as air gap flux density, torque, Back-EMF, etc. were compared. By comparing the obtained results, it was concluded that the motor without slots provides a more suitable performance compared to the one with slot. Finally, the steps related to motor construction and experimental results were reviewed. Finally, it is proved that the experimental results are very close to the results presented in the analytical section.

本文研究了两种高速永磁电机的设计、仿真和构造，该电机具有内置永磁体（IPM）转子和两种不同的带槽和不带槽定子。在高速电机中，由于励磁频率高，会出现机械损耗高、转子与定子之间的吸引力大、定子铁芯损耗大以及导线集肤效应等问题。本文证明，通过去除高速电机的定子槽，可以解决许多上述问题。根据标称值和设计方程研究了两种电机的电磁设计。在这种情况下，假设两个电机的极数、线圈和外径相同。由于取消了槽，无槽定子中的气隙磁通密度低于有槽定子结构，这导致每相线圈匝数更高。然后利用有限元方法对两种电机进行仿真评估进行比较，并对两种电机的一些参数如气隙磁通密度、扭矩、反电动势等进行比较。通过比较所获得的结果，得出的结论是，与有槽电机相比，无槽电机提供了更合适的性能。最后，回顾了与电机构造相关的步骤和实验结果。最后证明实验结果与分析部分给出的结果非常接近。