【摘要】 为了在减少传统聚磁永磁游标电机永磁体用量时，仍能保持较大的转矩密度，提出一种新型聚磁式交替极永磁游标电机。与传统聚磁式永磁游标电机相比，新型拓扑结构电机通过交替极转子设计在减少永磁体用量时仍能保持较好的转矩输出特性。该文首先介绍了聚磁式交替极游标永磁电机的结构特点及工作原理。其次，以输出转矩最大为目标，利用有限元法对所提新结构电机关键参数进行优化分析。最后对比分析了新型聚磁式交替极永磁游标电机与传统聚磁式永磁游标电机的电磁性能，包括气隙磁密、反电势及转矩性能，结果表明在相同的体积下，所提新拓扑电机具有更高的转矩密度及更少的永磁体用量。因此，它在低速大转矩直驱应用场合具有广阔的应用前景。更多还原

【Abstract】 In order to reduce the amount of permanent magnets of the traditional magnetization permanent magnet vernier motor,it can still maintain a large torque density,a new type of flux focusing alternating pole permanent magnet vernier motor is proposed. Compared with the traditional flux focusing permanent magnet vernier motor,the new topology structure motor can maintain better torque output characteristics while reducing the amount of permanent magnets through the alternating pole rotor design. it first introduces the structural characteristics and working principle of the flux focusing alternating pole vernier permanent magnet motor. Secondly,with the goal of maximizing the output torque,the key parameters of the proposed new structure motor are optimized and analyzed by the finite element methon. Finally,a comparative analysis of the electromagnetic performance of the new-type magnetic alternating-pole permanent magnet vernier motor and the traditional magnetic-focusing permanent magnet vernier motor,including air-gap magnetic density,back EMF and torque performance,is compared and analyzed.The results show that under the same volume,the proposed the new topology motor has a higher torque density and fewer permanent magnets. Therefore,it has broad application prospects in low-speed high-torque direct drive applications.更多还原