摘要
永磁多自由度运动电机与常规电机相比,优点突出,有着广阔的应用前景。该文提出一种新型永磁转子偏转式三自由度电机,介绍其基本结构和工作原理,分别利用解析法和三维有限元法对电机磁场进行建模分析,得出气隙磁通密度三维模型,并对电机内部的空间谐波进行分析,得到了气隙磁密径向分量的分布数据。通过两种方法的分析对比,结果表明,解析法计算的气隙磁密径向分量与有限元法结果吻合,计算值误差在3.5%以内,验证了所建立磁场模型的正确性。
Compared to conventional motors, the multi-DOF PM motors have obvious advantages and wide application prospects. A novel 3-DOF deflection type PM motor was presented. Its basic structure and operation principle were introduced. By using the analytical and finite element methods, the magnetic field of the motor was modeled and analyzed, and the 3D model of air gap magnetic flux density was formulated. The space harmonics within the motor was also analyzed and the radial component distribution data of the air gap magnetic field flux density were derived. Through analysis and comparison of the results of two methods, it shows that the results of radial component of the flux density with analytical method agree well with the finite element method, with calculated error being less than 3.5%, which verifies the correctness of the magnetic field model.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2013年第S1期219-225,共7页
Proceedings of the CSEE
基金
国家自然科学基金项目(51107031)~~
关键词
永磁转子
三自由度
磁场
解析法
有限元
谐波
permanent magnet(PM) rotor
3-degree of freedom(DOF)
magnetic field
analytical method
finite element method(FEM)
harmonic
