全封闭高速永磁电机转子结构对转子散热的影响

doi:10.19595/j.cnki.1000-6753.tces.L70519

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (39088 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In order to study the influence of rotor structure on rotor heat dissipation for totally enclosed water-cooling high speed permanent magnet motors (HSPMMs), a 15kW, 30 000r/min high-speed amorphous alloy permanent magnet motor was taken as an example. On the basis of computational fluid dynamics (CFD) and heat transfer theory, the computation model of fluid-solid conjugate heat transfer was established, and the coupled field was calculated using finite volume method by giving fundamental assumptions and corresponding boundary conditions. The temperature distributions of each part and air flow characteristics in the motor were obtained under several conditions, that is, with and without axial ventilation holes, the combination between ventilation holes and wafters of rotor. Thereafter, the influence of different ventilation hole sizes and number on fluid and temperature field were studied. The calculated results show that the cooling condition is improved, and the temperatures of permanent magnets are reduced by introducing the rotor wind pressure parts. The temperature of permanent magnet can further decrease by increasing the area of rotor ventilation holes. At last, the temperature rise test for a 15kW totally enclosed water-cooling HSPMSM was conducted. The test data were compared with the calculated results, which validated correctness of the solution method of coupled field.

Key words： Totally enclosed high speed permanent magnet motor (HSPMM), fluid-solid coupling, air-friction loss, temperature field, rotor axial ventilation holes, rotor wafters

Received: 20 August 2016 Published: 05 December 2017

PACS:

TM301.4

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Tong Wenming
	Sun Jingyang
	Wu Shengnan

Cite this article:

Tong Wenming,Sun Jingyang,Wu Shengnan. Effect of Rotor Structure on Rotor Dissipation for Totally-Enclosed High-Speed Permanent Magnet Motor[J]. Transactions of China Electrotechnical Society, 2017, 32(22): 91-100.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.L70519 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I22/91

[1] 张凤阁, 杜光辉, 王天煜, 等. 高速电机发展与设计综述[J]. 电工技术学报, 2016, 31(7): 1-18.
Zhang Fengge, Du Guanghui, Wang Tianyu, et al. Review on development and design of high speed machines[J]. Transactions of China Electrotechnical Society, 2016, 31(7): 1-18.
[2] Tang Renyuan, Tong Wenming, Han Xueyan. Overview on amorphous alloy electrical machines and their key technologies[J]. Chinese Journal of Electrical Engineering, 2016, 2(1): 1-12.
[3] 董剑宁, 黄允凯, 金龙, 等. 高速永磁电机设计与分析技术综述[J]. 中国电机工程学报, 2014, 34(27): 4640-4653.
Dong Jianning, Huang Yunkai, Jin Long, et al. Review on high speed permanent magnet machines including design and analysis technologies[J]. Pro- ceedings of the CSEE, 2014, 34(27): 4640-4653.
[4] Staton D A, Cavagnino A. Convection heat transfer and flow calculations suitable for electric machines thermal models[J]. IEEE Transactions on Industrial Electronics, 2008, 55(10): 3509-3516.
[5] 胡晓红, 袁益超, 刘聿拯, 等. 汽轮发电机转子副槽通风冷却系统流动特性研究[J]. 中国电机工程学报, 2008, 28(5): 91-96.
Hu Xiaohong, Yuan Yichao, Liu Yuzheng, et al. Study on the flow characteristics of rotor sub-slot ventilation in turbo-generator[J]. Proceedings of the CSEE, 2008, 28(5): 91-96.
[6] Traxler-Samek G, Zickermann R, Schwery A. Cooling airflow, losses, and temperatures in large air- cooled synchronous machines[J]. IEEE Transactions on Industrial Electronics, 2010, 57(1): 172-180.
[7] Boglietti A, Cavagnino A. Analysis of the endwinding cooling effects in TEFC induction motors[J]. IEEE Transactions on Industrial Applications, 2007, 43(5): 1214-1222.
[8] Boglietti A, Cavagnino A, Staton D A, et al. Impact of different end region cooling arrangements on endwinding heat transfer coefficients in electric motors[C]//Conference of IEEE Industrial Electronics society, Porto, Portugal, 2009: 1168-1173.
[9] 丁树业, 葛云中, 徐殿国, 等. 1.5MW双馈风力发电机内流体场分析[J].中国电机工程学报, 2012, 32(21): 93 -98.
Ding Shuye, Ge Yunzhong, Xu Dianguo, et al. Analyses of fluid field inside 1.5MW doubly-fed wind generator[J]. Proceedings of the CSEE, 2012, 32(21): 93-98.
[10] 丁树业, 孙兆琼, 徐殿国, 等. 3MW双馈风力发电机传热特性数值研究[J]. 中国电机工程学报, 2012, 32(3): 137-143.
Ding Shuye, Sun Zhaoqiong, Xu Dianguo, et al. Numerical investigation of heat transfer for 3MW doubly-fed wind generator[J]. Proceedings of the CSEE, 2012, 32(3): 137-143.
[11] 焦晓霞, 管春伟, 李伟力, 等. 汽轮发电机不同冷却介质对定子传热特性的影响[J]. 电机与控制学报, 2011, 15(2): 54-70.
Jiao Xiaoxia, Guan Chunwei, Li Weili, et al. Influences of different cooling medium in turbo- generator on stator heat transfer characteristics[J]. Electric Machines and Control, 2011, 15(2): 54-70.
[12] Seghir-Oualil S, Harmand S, Laloy D. Study of the thermal behavior of a synchronous motor with permanent magnets[J]. International Journal of Engineering (IJE), 2009, 3(3): 229-256.
[13] Jungreuthmayer C, Bäuml T, Winter O, et al. A detailed heat and fluid flow analysis of an internal permanent magnet synchronous machine by means of computational fluid dynamics[J]. IEEE Transactions on Industrial Electronics, 2012, 59(12): 4568-4578.
[14] 熊万里, 徐光帅, 吕浪, 等. 高速大功率电机转子通风孔散热效率优化研究[J]. 机械科学与技术, 2014, 33(5): 735-740.
Xiong Wanli, Xu Guangshuai, Lü Lang, et al. Optimizing heat dissipation efficiency for air-cooling holes of rotor of high-speed and large-power motor[J]. Mechanical Science and Technology for Aerospace Engineering, 2014, 33(5): 735-740.
[15] 佟文明, 程雪斌, 孙静阳, 等. 转子风刺对高速永磁电机永磁体温升的抑制作用[J]. 中国电机工程学报, 2017, 37(5): 1526-1534.
Tong Wenming, Chen Xuebin, Sun Jingyang, et al. Suppression effect of rotor wafters on permanent magnet temperature rise for high-speed permanent magnet motor[J]. Proceedings of the CSEE, 2017, 37(5): 1526-1534.
[16] 陶文铨. 数值传热学[M]. 西安: 西安交通大学出版社, 2001: 347-353.
[17] 王福军. 计算流体力学分析[M]. 北京: 清华大学出版社, 2004: 7-11.
[18] 胡田, 唐任远, 李岩, 等. 永磁风力发电机三维温度场计算及分析[J]. 电工技术学报, 2010, 28(3): 122-126.
Hu Tian, Tang Renyuan, Li Yan, et al. Thermal analysis and calculation of permanent magnet wind generators[J]. Transactions of China Electrotechnical Society, 2013, 28(3): 122-126.
[19] 丁树业, 郭保成, 冯海军, 等. 变频控制下永磁同步电机温度场分析[J]. 中国电机工程学报, 2014, 34(9): 1368-1375.
Ding Shuye, Guo Baocheng, Feng Haijun, et al. Temperature field investigation of permanent magnet synchronous motors controlled by the frequency conversion control system[J]. Proceedings of the CSEE, 2014, 34(9): 1368-1375.
[20] 佟文明, 朱晓锋, 贾建国, 等. 时间谐波对永磁同步电机损耗的影响规律[J]. 电工技术学报, 2015, 30(6): 60-69.
Tong Wenming, Zhu Xiaofeng, Jia Jianguo, et al. Influence law of additional losses induced by time harmonic in permanent magnet synchronous motors[J]. Transactions of China Electrotechnical Society, 2015, 30(6): 60-69.
[21] 佟文明, 朱晓锋, 朱龙飞, 等. 不同供电方式对非晶合金永磁同步电机铁耗的影响[J]. 电工技术学报, 2015, 30(10): 115-122.
Tong Wenming, Zhu Xiaofeng, Zhu Longfei, et al. The impact of different supply modes on core losses of amorphous alloy permanent magnet synchronous motor[J]. Transactions of China Electrotechnical Society, 2015, 30(10): 115-122.