冷却方式对抽水蓄能机组定子绝缘特性的影响

doi:10.19595/j.cnki.1000-6753.tces.160334

Abstract
Figure/Table
References
Related Citation (6)

Download: PDF (316 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract In daily operation of pumped storage station, generator-motor is featured with frequent start up and shut down, sharp operating load change. With the development of higher capacity and water head in recent years, the effects of thermal stress generated in operation load change on pumped storage unit’s safety and reliability have become more and more serious. Thermal stress not only has relation with the changing rate of thermal load and structure feature of generator-motor, but also is directly affected by cooling method. Firstly, the advantages and disadvantages of different cooling methods when applying in generator-motor are qualitatively analyzed in this paper. Then the design principle of thermal cycle test is proposed in order to compare the effects of different cooling modes on thermal cycle aging of insulation system. Finally, the maximum partial discharge is used as the representative parameter of the insulation characteristics. Through thermal cycle test, the influence of cooling mode on the insulating characteristics of pumped storage units was analyzed. The experimental results indicate that the anti-aging capability of evaporative cooling stator bar is much better than that of air cooling stator bar.

Key words： Pumped storage unit, generator-motor, cooling method, insulation characteristics

Received: 16 March 2016 Published: 01 August 2017

PACS:

TM341

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	Ruan Lin
	Chen Jinxiu
	Gu Guobiao

Cite this article:

Ruan Lin,Chen Jinxiu,Gu Guobiao. Different Influence of Cooling Method to Stator Bar Insulation Characteristics in Pumped Storage Units[J]. Transactions of China Electrotechnical Society, 2017, 32(14): 246-251.

URL:

https://dgjsxb.ces-transaction.com/EN/10.19595/j.cnki.1000-6753.tces.160334 OR https://dgjsxb.ces-transaction.com/EN/Y2017/V32/I14/246

[1] 梅祖彦. 抽水蓄能发电技术[M]. 北京: 机械工业出版社, 2000.
[2] 邱彬如. 世界抽水蓄能电站新发展[M]. 北京: 中国电力出版社, 2006.
[3] 林明华. 世界抽水蓄能电站建设特点与发展趋向[J]. 水力发电学报, 1996(3): 87-98.
Lin Minghua. The pumped-storage power station construction features and development trends[J]. Journal of Hydroelectric Engineering, 1996(3): 87-98.
[4] 丁舜年. 大型电机的发热与冷却[M]. 北京: 科学出版社, 1992.
[5] 李定中. 论巨型水轮发电机冷却方式的选择[J]. 水力发电, 2007, 33(12): 40-44.
Li Dingzhong. Dissertation of choosing cooling mode for giant-scale hydrogenerator[J]. Water Power, 33(12): 40-44.
[6] 吕延春, 张巍, 张长伟. 水轮发电机定子硅钢片径向位移分析及处理[J]. 水电站机电技术, 2010, 33(1): 8-11
Lü Yanchun, Zhang Wei, Zhang Zhangwei. Analysis and handle the radial displacement of the stator silicon steel sheet in hydro-generator[J]. Mechanical & Electrical Technique of Hydropower Station, 2010, 33(1): 8-11.
[7] 阮琳. 大型发电机冷却方式的发展及特点[J]. 电气时代, 2001(6): 38-40.
Ruan Lin. Development and feature of cooling methods in large generator[J]. Electric Age, 2001(6): 38-40.
[8] Greg C Stone. 旋转电机的绝缘[M]. 北京: 中国电力出版社, 2011.
[9] Ridley G K. An ultra-pure water system for a hydro- electric generator-motor[C]//Fifth International Con- ference on Electrical Machines and Drives, 1991: 285-289.
[10] Ridley G K. The UK's first direct-water-cooled pumped-storage generator-motor[J]. Electronics & Power, 1982, 28(10): 678-681.
[11] 顾国彪, 阮琳, 刘斐辉, 等. 蒸发冷却技术的发展、应用和展望[J]. 电工技术学报, 2015, 30(11): 1-6.
Gu Guobiao, Ruan Lin, Liu Feihui, et al. Deve- lopments, applications and prospects of evaporative cooling technology[J]. Transactions of China Electrotechnical Society, 2015, 30(11): 1-6.
[12] 国建鸿, 顾国彪, 傅德平, 等. 330MW蒸发冷却汽轮发电机冷却技术的特点及性能[J]. 电工技术学报, 2013, 28(3): 134-139.
Guo Jianhong, Gu Guobiao, Fu Deping, et al. Cooling characteristics and performance of the 330MW evaporative cooling turbo generator[J]. Transactions of China Electrotechnical Society, 2013, 28(3): 134-139.
[13] 姚涛, 侯哲, 顾国彪. 蒸发冷却技术应用于大型汽轮发电机的技术可行性[J]. 电工技术学报, 2008, 23(2): 1-5.
Yao Tao, Hou Zhe, Gu Guobiao. Application of evaporative cooling technique to large turbo generator[J]. Transactions of China Electrotechnical Society, 2008, 23(2): 1-5.
[14] The Institute of Electrical and Electronics Engineering. IEEE Std 1310—1996 IEEE trial use recommended practice for thermal cycle testing of form-wound stator bars and coils for large gener- ators[S]. New York: 1996.
[15] 满宇光, 刘东. 抽水蓄能电站机组定子线棒的冷热循环试验[Z]. 抽水蓄能电站工程建设文集, 2012, 249-251.
Man Yuguang, Liu Dong. Thermal cycle test of stator bar in pumped storage station[J]. Proceeding of Pumped Storage Station Engineering Construction, 2012: 249-251.
[16] 梁智明, 曾谦, 漆临生. 二滩水轮发电机组定子线棒冷热循环试验研究[J]. 绝缘材料通讯, 2000(6): 28-32.
Liang Zhiming, Zeng Qian, Qi Linsheng. Experi- mental research on the hot and cold cycle of the stator winding in Ertan hydro-generator[J]. Insulation Material Communication, 2000(6): 28-32.
[17] 庞庆辉, 张小俊. 双馈风力发电机线圈绝缘冷热循环试验研究[J]. 东方电机, 2010(1): 72-75.
Pang Qinghui, Zhang Xiaojun. Experimental research on the hot and cold cycle of the stator winding insulation in the doubly-fed wind generator[J]. Dongfang Dianji, 2010(1): 72-75.
[18] Chen Jinxiu, Ruan Lin, Chen J, et al. Comparative study on thermo-mechanical insulation aging of evaporative cooled and air cooled stator bar[C]// International Conference on IEEE Electrical Machines and Systems, Pattaya, Thailand, 2015: 1234-1240.
[19] 中国国家标准化管理委员会. GB/T 20833—2007 旋转电机定子线棒及绕组局部放电的测量方法及评定导则[S]. 北京: 中国标准出版社, 2007.
（编辑郭丽军）