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| Cooling Technology of Rotor of High Temperature Superconducting Electrical Machines |
| Chen Biao, Gu Guobiao |
| Institute of Electrical Engineering, Chinese Academy of Sciences Beijing 100190 China |
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Abstract Cooling technology of rotor is a key technology for high temperature superconducting electrical machines. Based on the theory of rotating piping flow and pool boiling, the heat transfer principles of cooling methods are proposed, which are including integrated rotating thermosyphon, distributed rotating thermosyphon, immersion cooling, layered open evaporative cooling, and rotating piping evaporative cooling, respectively. The temperature distributions of cooling methods of rotor section are simulated by ANSYS steady state model. An experimentally integrated test platform adaptable to five cooling methods is designed and built up. Experiments on characteristics of heat transfer and flow are investigated. The performances of five cooling methods were contrasted, and the results are that immersion cooling makes the best performance and the others are different with it. Moreover, the experimental results are compared with the simulated ones. It is verified that the simulations could match the experiments well.
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Received: 10 August 2010
Published: 07 March 2014
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[1][1] Gunar Klaus, Markus Wilke, Joachim Frauenhofer, et al. Design challenges and benefits of HTS synchronous machines [J]. IEEE Transactions on Applied Superconductivity, 2007, 17(7): 1-8.
[2][2] Alex P Malozemoff. The new generation of superconductor equipment for the electric power grid [J]. IEEE Transactions on Applied Superconductivity, 2006, 16(1), 54-58.
[3][3] 陈彪, 顾国彪, 张国强. 高温超导电机的冷却技术综述[J]. 低温工程, 2007 (5), 15-19.
[4] 姚若萍, 饶芳权. 蒸发冷却水轮发电机定子温度场研究[J]. 中国电机工程学报, 2003, 23(6): 87-90.
[5] 栾茹, 傅德平. 新型浸润式蒸发冷却电机定子三维温度场的研究[J]. 中国电机工程学报, 2004, 24(8): 205-209．
Luan Ru, Fu Deping. Study on 3D temperature distribution in new evaporative cooling asynchronous generator [J]. Proceedings of the CSEE, 2004, 24(8): 205-209.
[6] 徐济鋆, 贾斗南, 沸腾传热和气液两相流[M]. 北京: 原子能出版社, 2001.
[7] 郭朝红, 余顺周, 蔡静, 等. 蒸发冷却电机中气液两相沿程摩擦阻力的研究[J]. 中国电机工程学报, 2006, 26 (19), 139-144
Guo Chaohong, Yu Shunzhou, Cai Jing, et al. Research on two-phase flow frictional pressure drop in the evaporative generator [J]. Proceedings of the CSEE, 2006, 26 (19), 139-144
[8] 王如竹, 汪荣顺. 低温系统[M]. 上海: 上海交通大学出版社, 2000.
[9] 辛明道, 童明伟, 液膜沸腾的临界液位和传热[J], 重庆大学学报, 1984, (6) 49-59
Xin Mingdao, Tong Mingwei. Critical liquid level and heat transfer of film boiling[J]. Journal of Chongqing University, 1984, (6): 49-59.
[10] Gouge M J. Cryogenic cooling technology for HTS electric machinery[R]. Proceedings of the IEEE Power Engineering Society General Meeting, 2004, l (2): 2049-2051. |
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2011, Vol. 26 
