摘要
针对现有直线旋转驱动机构结构复杂、体积大、控制精度低等问题,提出一种新型双定子直线旋转永磁电机。该电机由内外定子及一个中间动子构成,能够实现直线、旋转和螺旋运动。分析了该电机的结构特点和运行原理,建立了双定子直线旋转永磁电机的等效磁路模型,推导了转矩和推力的表达式。通过求解所建立的等效磁路模型方程,以计算该电机的空载和负载特性,其计算结果与3D有限元方法一致。设计制作了实验样机,并在所设计的样机上进行实验研究,结果表明所提出的分析理论和方法可以快速、有效地分析双定子直线旋转永磁电机的特性,且所提出的双定子直线旋转永磁电机具有可行性。
Considering the deficiencies, including the complex structure, huge volume and low control accuracy, of the existing linear ＆ rotary drive system, a novel double stator linear rotary permanent magnet motor （DSLRPMM） was proposed. The proposed motor which involved linear and/or rotary movements is consisted of the inner stator, outer stator and middle movable unit. The structure characteristics and operating principles of the DSLRPMM were introduced. The equivalent magnetic circuit model （EMCM） was built and the expressions of the torque and linear thrust are deduced. Based on the EMCM, the characteristics of the DSLRPMM without and with load were analyzed respectively, and the results were verified by the 3D finite element method （FEM）. Meanwhile, a prototype was manufactured and the experiments are also done. The results not only indicate that the characteristics of the DSLRPMM can be quickly and effectively analyzed by the proposed analysis theory and method, but also verify the practicability of the DSLRPMM.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2017年第16期4791-4799,共9页
Proceedings of the CSEE
基金
国家自然科学基金项目(51307022)
江苏省自然科学基金项目(SBK201342309)~~
关键词
直线旋转永磁电机
同步电机
三维有限元方法
等效磁路模型
linear and rotary permanent magnet motor
synchronous motor
3D finite element method
equivalent magnetic circuit model
