双定子游标磁阻电机的转矩研究
罗丹，刘福贵，杨乾坤，李宁宁
（河北工业大学 电气工程学院，天津 300130）
摘 要：为了满足很多场合中低速大转矩直接驱动电机的需要，基于传统游标磁阻结构电机改进设计了一种双定子中间转子式的新型游标磁阻电机。分析了传统游标磁阻电机的工作原理并推导出其电磁转矩表达式，利用有限元法对比分析新型游标磁阻电机和传统游标磁阻电机的性能，仿真计算得出该新型电机的平均转矩比传统游标磁阻电机高44%，通过对内外定子间的相对角度进行优化，得出最优角度为15°，此时其平均转矩与优化前相比提高9.5%。
关键词：游标磁阻电机；双定子；电磁转矩；齿槽转矩；有限元法
中图分类号：TM352 文献标识码：A 文章编号：1007-3175(2018)02-0006-05
Torque Research of Dual-Stator Vernier Reluctance Motor
LUO Dan, LIU Fu-gui, YANG Qian-kun, LI Ning-ning
（School of Electrical Engineering, Hebei University of Technology, Tianjin 300130, China）
Abstract: In order to meet the needs of low speed and high torque direct-drive motors in many occasions, this paper designed a novel kind of dual-stator inner-rotor vernier reluctance motor based on the traditional vernier reluctance topology motor, analyzed the working principle of the traditional vernier reluctance motor and deduced the electromagnetic torque expression. Finite element method was used to analyze and compare the performance of the novel vernier reluctance motor with the traditional one. The simulating calculation result shows that the average torque of the novel motor is increased by 44% compared to the traditional structure. The relative angle between the external stator and the internal stator of the novel motor is optimized to obtain the most optimal angle which is 15o and its average torque is 9.5% higher than that before optimization.
Key words: vernier reluctance motor; dual stator; electromagnetic torque; cogging torque; finite element method
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