一种混合励磁无轴承电机数学建模及特性分析

微特电机 ›› 2022, Vol. 50 ›› Issue (5): 7-13.

一种混合励磁无轴承电机数学建模及特性分析

何佳佳, 周扬忠, 刘汪彤

福州大学福建省新能源发电与电能变换重点实验室,福州 350108

收稿日期:2022-01-18 出版日期:2022-05-28 发布日期:2022-06-22
作者简介:何佳佳(1997—),男,硕士研究生,研究方向为现代调速系统。周扬忠(1971—),男,博士,教授,博士生导师,研究方向为现代调速系统,新能源发电系统。刘汪彤(1992—),男,硕士研究生,研究方向为现代调速系统。

Mathematical Modeling and Characteristic Analysis of Hybrid Excitation Bearingless Motor

HE Jiajia, ZHOU Yangzhong, LIU Wangtong

Fujian Key Laboratory of New Energy Generation and Energy Conversion, Fuzhou University, Fuzhou 350108, China

Received:2022-01-18 Online:2022-05-28 Published:2022-06-22

摘要/Abstract

摘要： 提出将混合励磁技术引入无轴承电机并针对一种混合励磁型无轴承磁通切换电机(BFSHEM),阐述其悬浮力生成原理,基于有限元分析,建立混合励磁下的悬浮力及电磁转矩数学模型。对BFSHEM的悬浮力/电磁转矩特性进行仿真研究并验证所推导的数学模型。在一台BFSHEM样机上进行反电动势测量实验。结果表明,该数学模型能够较好地反映BFSHEM的悬浮力/转矩特性,混合励磁技术的引进可以增加悬浮力与电磁转矩的控制维度,且电机的输出转矩能够通过通入增磁电流得到较大的提升,证明BFSHEM具有实际应用价值。

关键词: 永磁型无轴承磁通切换电机, 混合励磁型无轴承磁通切换电机, 六相电机, 混合励磁, 悬浮力数学模型

Abstract: The bearingless motor was introduced by the hybrid excitation technology, and for a bearingless flux-switching hybrid excitation motor (BFSHEM), the principle of its levitation force generation was described. The mathematical model of the suspension force and electromagnetic torque under the hybrid excitation was established paced the finite element analysis. The levitation force/electromagnetic torque characteristics of BFSHEM were simulated and the mathematical model deduced was verified. the back EMF measurement experiment was carried out on a BFSHEM prototype. The results show that the mathematical model can well reflect the levitation force/torque characteristics of BFSHEM, the introduction of hybrid excitation technology can increase the control dimension of levitation force and electromagnetic torque, and the output torque of the motor can be controlled by adding magnetizing current. It has been greatly improved, which proves that BFSHEM has practical application value.

Key words: bearingless flux-switching permanent magnet motor(BFSPMM), bearingless flux-switching hybrid excitation motor(BFSHEM), six phase motor, hybrid excitation, mathematical model of levitation force

中图分类号:

TM351

何佳佳, 周扬忠, 刘汪彤. 一种混合励磁无轴承电机数学建模及特性分析[J]. 微特电机, 2022, 50(5): 7-13.

HE Jiajia, ZHOU Yangzhong, LIU Wangtong. Mathematical Modeling and Characteristic Analysis of Hybrid Excitation Bearingless Motor[J]. Small & Special Electrical Machines, 2022, 50(5): 7-13.

参考文献

[1] ZHOU Y Z,ZHONG T Y,CHEN M,et al.Research on the rotor suspension force of bearingless flux-switching machine[C]//18th International Conference on Electrical Machines and Systems (ICEMS):2015,1395-1401.
[2] CHEN H,EL-REFAIE A M,DEMERDASH N.Flux-switching permanent magnet machines:a review of opportunities and challenges-part i:fundamentals and topologies[J].IEEE Transactions on Energy Conversion,2020,35(2):684-698.
[3] ZHOU Y Z,FANG F,ZHENG M F.Research on fast design of key variables of bearingless flux-switching motor based on variable structure magnetic network[J].IEEE Transactions on Industry Applications,2019,55(2):1372-1381.
[4] ZHAO C Y,ZHU H Q.Design and analysis of a novel bearingless flux-switching permanent magnet motor[J].IEEE Transactions on Industrial Electronics,2017,64(8):6127-6136.
[5] SUN X D,CHEN L,YANG Z B.Overview of bearingless permanent-magnet synchronous motors[J].IEEE Transactions on Industrial Electronics,2013,60(12):5528-5538.
[6] 刘汪彤,周扬忠.单绕组无轴承磁通切换电机缺两相容错控制[J].微特电机,2021,49(9):1-8.
[7] 张卓然,王东,花为.混合励磁电机结构原理、设计与运行控制技术综述及展望[J].中国电机工程学报,2020,40(24):7834-7850.
[8] 许泽刚,谢少军,许津铭.12/10极混合励磁磁通切换电机的快速设计[J].电机与控制学报,2013,17(3):76-83.
[9] HUA W,ZHANG G,CHENG M.Flux-regulation theories and principles of hybrid-excited flux-switching machines[J].IEEE Transactions on Industrial Electronics,2015,62(9):5359-5369.
[10] 李帅,梁基重,刘宏,等.混合励磁磁通切换电机电磁特性分析与实验验证[J].微电机,2021,54(2):25-30.
[11] 花为,董广鹏,程明.混合励磁型磁通切换电机电感特性分析[J].中国科技论文在线,2010,5(8):637-642.
[12] 吴鑫.具有容错功能的多相无轴承磁通切换电机驱动系统研究[D].福州:福州大学,2020.
[13] 郑梦飞,周扬忠.转子切向旋转和径向悬浮解耦的单绕组无轴承磁通切换电机驱动控制策略研究[J].仪器仪表学报,2018,39(8):185-194.