摘要
内置式永磁驱动电机具有功率密度高、噪音小、调速范围广等优点,在新能源电动汽车领域中具有广泛的应用前景。针对内置式永磁驱动电机空载反电势谐波含量大而引起的齿槽转矩大和谐波损耗高等问题,本文提出了3种通过改变转子拓扑结构实现空载反电势谐波含量削弱的方法,并利用有限元电磁场计算软件,建立内置式永磁驱动电机的有限元模型,计算并分析不同转子拓扑结构对电机空载反电势谐波等性能的影响,进而对电机的拓扑结构进行优化。最后,制造了实验样机,试验测试了样机的空载性能,并与仿真结果对比,验证了有限元仿真的准确性和谐波削弱方法的可行性。
The Interior Permanent Magnet Synchronous Motor（ IPMSM） has lots of advantages such as high power density,low noise and wide speed range,which is attractive for new energy electric vehicles（ EVs）.Aiming at the problem of high cogging torque and high harmonic loss of the IPMSM because of the high harmonic content of no-load electromotive force（ EMF）,three methods are proposed to reduce the harmonic content of the no-load EMF by changing the topology of rotor in this paper. Then,the influence of different magnetic structures on the no-load performances of motor are calculated and the topological structure of rotor are optimized by building the 2 D FEM model. Finally,the prototype is manufactured and the no-load performance of the prototype is tested. Meanwhile,the experimental results are compared with the simulation results which proved the accuracy of method and feasibility of finite element method.
作者
刘金辉
蔡巍
LIU Jinhui;CAI Wei(Navy Submarine Academy,Qindao Shandong 266199,China)
出处
《微电机》
北大核心
2018年第6期7-10,15,共5页
Micromotors
