多三相分布式绕组和集中式绕组永磁磁阻电机对比研究  

Comparative Study on Triple 3-Phase PMA-SynRM with Distributed Winding and Concentrated Winding

作　　者：汪波 徐文翰 查陈诚 刘朝辉 程明[1] 花为[1] Wang Bo;Xu Wenhan;Zha Chencheng;Liu Chaohui;Cheng Ming;Hua Wei(School of Electrical Engineering Southeast University,Nanjing 210096 China;Powertrain Department National New Energy Vehicle Technology Innovation Center(NEVC),Beijing 100176 China)

机构地区：[1]东南大学电气工程学院,南京210096 [2]国家新能源汽车技术创新中心,北京100176

出　　处：《电工技术学报》2024年第10期2984-2994,共11页Transactions of China Electrotechnical Society

基　　金：国家重点研发计划资助项目(2022YFB2502701)。

摘　　要：利用磁阻转矩替代永磁转矩,永磁磁阻电机可减少永磁用量,以较低的成本实现相同的性能,该电机在相关行业应用正愈发得到重视。得益于较低的永磁磁链,该类电机短路电流小,非常适合容错设计。电机运行性能和容错能力与绕组紧密相关,因此该文研究了两台分别采用分布式绕组和集中式绕组的多三相永磁磁阻电机,两台电机基于相同性能指标进行设计加工。通过深入的有限元仿真和实验测试,比较了两台电机的反电动势、最大转矩电流比(MTPA)曲线、输出转矩以及不同故障模式下的故障行为和容错能力。结果表明,对于中低速应用场合,采用集中式绕组永磁磁阻电机较之分布式绕组结构具有更好的容错表现。PM Assisted Synchronous Reluctance Machine(PMA-SynRM)receives increased interest in industry applications.It reduces the PM usage and offsets the torque reduction by employing reluctance torque,achieving comparable performance with a lower cost.This type of machine features low PM flux linkage,suitable for fault-tolerant applications.The machine drive performance and fault-tolerant ability are closely related to their windings.Therefore,this paper compares two fault-tolerant motor topologies with multiple 3-phase distributed winding and multiple 3-phase concentrated winding.First,the two motors are designed under the same technical specifications and operate at the rated point with 24 N·m torque at 2000 r/min.For each design sample,simulation calculations are conducted in Flux,and the relevant data is imported into Hyper Study.Then,Hyper Study uses a genetic algorithm to calculate the relevant parameters of the next iteration until the two motors’final optimization parameters are achieved.Secondly,2D finite element simulation models of the distributed and centralized winding motors are established using Flux finite element simulation software.The two motors are simulated and analyzed,and the back electromotive force,MTPA curve,output torque,fault behavior,and fault tolerance capability under different fault modes are compared.The results show that the efficiency of the concentrated winding motor is 1.1%higher than that of the distributed winding motor.The concentrated winding motor has a lower proportion of reluctance torque,and its output torque is 1.2 N·m higher than that of the distributed winding motor under open circuit conditions but lower under short circuit conditions.Under inter-turn short circuit,after taking the terminal short circuit(TSC)protection action,the short circuit current of the centralized winding motor is only 80%of that of the distributed winding motor,indicating that the centralized winding motor has more robust fault tolerance performance.Finally,by processing the prototype and build

关 键 词：多三相容错电机 故障运行 匝间短路 有限元仿真 

分 类 号：TM341[电气工程—电机]