基于地铁车辆用160 kW永磁直驱同步牵引电机的技术要求,分析了160 kW直驱电机的设计难点。针对永磁直驱电机的设计难点，以电机的V型永磁体转子拓扑结构为研究对象，基于电磁计算软件Maxwell，优化转子拓扑结构。通过对不同永磁体V型转子拓扑结构的空载磁场和负载磁场进行计算与分析，得到电机空载和负载性能更好的V型转子拓扑结构。基于此结构研制了1台永磁同步直驱牵引电机，并进行了试验，样机试验结果验证了设计的可行性。

Based on the design requirement of 160 kW permanent magnet direct drive synchronous traction motor for metro vehicle, the design difficulties of 160 kW direct drive synchronous traction motor are analyzed. In view of the design difficulties of permanent magnet direct drive motor, the topology structure of the V-shaped permanent magnet rotor of the motor is studied, and is optimized based on Maxwell. Through comparative analysis of motor′s no-load performance and load performance of different V-shaped magnet steel rotor topology structures, the suitables rotor topology structure for the design of the motor is obtained. A prototype is developed and the test results verify the feasibility of the design.

国家重点研发计划项目（2017YFB1200903-06)