凸形不等厚磁极永磁电机建模与分析

doi:10.19595/j.cnki.1000-6753.tces.190074

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (1581 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The shape of magnets directly influences the electromagnetic performance of permanent magnet (PM) machines significantly. Two kinds of novel PM machines with salient shape unequal thickness magnets were presented. Two salient shape unequal thickness magnets were modeled. The air-gap magnetic field in the machines was analytically obtained by a subdomain model method with solving the Laplacian and quasi-Poissonian equations in each subdomain and applying the boundary conditions. Besides, the back electromotive force (EMF), electromagnetic torque and cogging torque were analytically obtained. Compared with the conventional structure with equal thickness magnets, the machines with salient shape unequal thickness magnets can improve the electromagnetic performance with the equal magnet usage. In addition, the influences of the parameters of salient shapes on the electromagnetic performance were also investigated. Finally, the correctness of the analytical models was verified by a finite element method (FEM).

Key words： Salient shape unequal thickness magnetic pole permanent magnet machine analytical method subdomain model method electromagnetic performance

Received: 17 January 2019

PACS:

TM351

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Ni Youyuan
	Wang Lei
	Wang Qunjing

Cite this article:

Ni Youyuan,Wang Lei,Wang Qunjing. Modeling and Analysis of Permanent Magnet Machines with Salient Shape Unequal Thickness Magnets[J]. Transactions of China Electrotechnical Society, 2020, 35(11): 2406-2414.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.190074 OR https://dgjsxb.ces-transaction.com/EN/Y2020/V35/I11/2406

[1] Zhu Z Q, Wu L J, Xia Z P.An accurate subdomain model for magnetic field computation in slotted surface-mounted permanent-magnet machines[J]. IEEE Transactions on Magnetics, 2010, 46(4): 1100-1115.
[2] 杨思雨, 夏长亮, 王慧敏. 磁极分段型表贴式永磁电机建模与分析[J]. 电工技术学报, 2015, 30(增刊2): 49-55.
Yang Siyu, Xia Changliang, Wang Huimin.Modeling and analyzing for surface mounted permanent magnet machine with segmented pole[J]. Transactions of China Electrotechnical Society, 2015, 30(S2): 49-55.
[3] Wu Lijian, Yin Hao, Dong Wang, et al.A nonlinear subdomain and magnetic circuit hybrid model for open-circuit field prediction in surface-mounted PM machines[J]. IEEE Transactions on Energy Conversion, 2019, 34(2): 1485-1495.
[4] 杨定伟, 邓兆祥, 张河山, 等. 永磁轮毂电机磁场解析建模[J]. 电工技术学报, 2019, 34(7): 1423-1433.
Yang Dingwei, Deng Zhaoxiang, Zhang Heshan, et al.Exact analytical solution of magnetic field in permanent magnet in-wheel motor[J]. Transactions of China Electrotechnical Society, 2019, 34(7): 1423-1433.
[5] 张守首, 郭思源. 考虑分段斜极和磁性槽楔的永磁同步电机磁场解析方法[J]. 电工技术学报, 2019, 34(1): 11-22.
Zhang Shoushou, Guo Siyuan.Analytical magnetic field method of permanent magnet synchronous machine considering step-skewed magnets and magnetic slot wedge[J]. Transactions of China Electrotechnical Society, 2019, 34(1): 11-22.
[6] 郭超, 黄守道, 王家堡, 等. 潜液式低温永磁同步电机的设计与特性研究[J]. 电工技术学报, 2019, 34(18): 3769-3777.
Guo Chao, Huang Shoudao, Wang Jiabao, et al.Design and characteristic research of submerged cryogenic permanent magnet synchronous motor[J]. Transactions of China Electrotechnical Society, 2019, 34(18): 3769-3777.
[7] 宋腾飞, 刘慧娟, 张振洋, 等. 车用永磁同步电机拓扑结构优化与实验研究[J]. 电机与控制学报, 2019, 23(6): 44-53.
Song Tengfei, Liu Huijuan, Zhang Zhenyang, et al.Topology optimization and experimental research of the interior permanent magnet synchronous motor for EVs[J]. Electric Machines and Control, 2019, 23(6): 44-53.
[8] 胡鹏飞, 王东, 靳栓宝, 等. 偏心磁极永磁电机气隙磁场正弦优化模型[J]. 电工技术学报, 2019, 34(18): 3759-3768.
Hu Pengfei, Wang Dong, Jin Shuanbao, et al.Sinusoidal optimization model for air gap magnetic field of eccentric magnetic pole permanent magnet motor[J]. Transactions of China Electrotechnical Society, 2019, 34(18): 3759-3768.
[9] Zhao Jing, Hu Hengzai, Liu Xiangdong.Influence of edge permanent-magnet shape on the performance of an arc-linear permanent-magnet synchronous machine[J]. IEEE Transactions on Magnetics, 2015, 51(11): 2804-2809.
[10] Wang Kai, Liang Yanping, Wang Dongmei, et al.Cogging torque reduction by eccentric structure of teeth in external rotor permanent magnet synchronous motors[J]. IET Electric Power Applications, 2019, 13(1): 57-63.
[11] 刘国海, 王艳阳, 陈前, 等. 非对称V型内置式永磁同步电机的多目标优化设计[J]. 电工技术学报, 2018, 33(增刊2): 385-393.
Liu Guohai, Wang Yanyang, Chen Qian, et al.Multi-objective optimization of an asymmetric V-shaped interior permanent magnet synchronous motor[J]. Transactions of China Electrotechnical Society, 2018, 33(S2): 385-393.
[12] 倪有源, 刘跃斌, 王群京. 组合磁极结构的永磁电机解析法建模与分析[J]. 电机与控制学报, 2019, 23(1): 52-62.
Ni Youyuan, Liu Yuebin, Wang Qunjing.Analytical modeling and analysis of a permanent magnet machine with combined magnetic poles[J]. Electric Machines and Control, 2019, 23(1): 52-62.