定子永磁型轴向磁通切换混合励磁电机优化分析  

Optimization analysis of the stator permanent magnet flux switching hybrid excitation motor

作　　者：曹光华[1] 王晨[1] 章超[2] 黄金霖[1] 

机构地区：[1]安徽机电职业技术学院电气工程系,安徽芜湖241000 [2]江西理工大学电气工程及自动化学院,江西赣州341000

出　　处：《机械设计》2017年第5期105-112,共8页Journal of Machine Design

基　　金：国家自然科学基金青年基金资助项目(51267006);安徽省自然科学研究资助项目(KJ2016A128)

摘　　要：针对定子永磁型轴向磁通切换混合励磁电机(SPMAFSHESM)的复杂结构,为获得该类电机的最优性能,建立电机的三维有限元仿真模型,以感应电动势及齿槽转矩为性能指标,研究永磁体、转子、励磁支架等尺寸对电机性能的影响规律。分析结果表明,励磁支架厚度为4.5 mm,隔磁环厚度为6 mm时,电机的漏磁系数最小;保持永磁体宽度为6.5°,其用量不变时,随着弧长的变化,形状系数为0.9时,电机性能最优;保持弧长不变,永磁体高度变化时,形状系数为0.95时,感应电动势最大,齿槽转矩最小。试制样机,测试优化前后的感应电势及调磁特性,试验结果与优化结果相吻合。In view of the complex structure of the stator permanent magnet flux switching hybrid excitation motor（SPMAFSHESM）, in order to obtain optimal performance of these motors, the 3D finite element analysis model of the SPMAFSHESM was built, the load back electromotive force（EMF） and cogging torque are took as the performance indicators,the effects of permanent magnets, rotor and excitation bracket’s sizes on motor performance are researched. Analysis results showed that the motor’s leakage coefficient is minimized on conditions of the thickness of the excitation bracket is 4.5 mm,and thickness of magnetic spacer is 6 mm. Holds the permanent magnet width 6.5°, and with the same amount of the permanent magnet, the motor performance is optimal when the shape factor is 0.9 with the arc length changed. Holds the arc length constant, the load back EMF is maximized, and the cogging torque is minimized when the shape factor is 0.95 with the permanent magnet’ height changed. Tested the back EMF and the tune of magnetic properties of the prototype, results coincide with the optimization results.

关 键 词：混合励磁 优化分析 齿槽转矩 感应电动势 形状系数 

分 类 号：TM351[电气工程—电机]