电工技术学报  2017, Vol. 32 Issue (13): 271-276    DOI: 10.19595/j.cnki.1000-6753.tces.151670
高电压与绝缘 |
第二代气体绝缘输电线路的温升数值计算
李冰, 肖登明, 赵谡, 张辉
上海交通大学电气工程系 上海 200030
Temperature Rise Numerical Calculation of the Second Generation Gas Insulated Transmission Line
Li Bing, Xiao Dengming, Zhao Su, Zhang Hui
Department of Electrical Engineering Shanghai Jiao Tong University Shanghai 200030 China
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摘要 气体绝缘输电线路(GIL)以其良好的性能在全世界范围内得到了一定应用。绝缘气体的散热性能和GIL的温升效应是GIL设计和在线监测的重要环节。本文通过建立包含外部空气域在内的模型,运用有限元法对采用20%SF6-80%N2混合气体绝缘的第二代GIL进行了温升仿真计算,得到第二代GIL的整体温度分布以及导体和外壳温升,并与解析法得到的温升情况进行对比,证明了所提方法的有效性;同时对影响第二代GIL温升的相关因素进行了仿真分析,为第二代GIL的进一步应用提供了参考。
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李冰
肖登明
赵谡
张辉
关键词 温升计算 有限元法 SF6-N2混合气体 第二代气体绝缘输电线路    
Abstract:Gas insulated transmission line (GIL) is used worldwide as its excellent performance. The heat dissipation of the insulating gas and the temperature rise effect are the key points of the design and on-line monitoring of the GIL. This paper builds a model of the second-generation GIL which contains the external air field, with 20%SF6-80%N2 as its insulating gas. The temperature rise is simulated by finite element method (FEM). The overall temperature distribution of GIL has been achieved, and the temperature rise of conductor and enclosure has also been derived. In comparison with the results achieved by analytical method, the effectiveness of the FEM method has been verified. The relevant factors that affect the temperature rise of the second-generation GIL are also simulated and analyzed. This paper provides a reference for the further application of the GIL.
Key wordsTemperature rise calculation    finite element method    SF6-N2 gas mixture    the second generation gas insulated transmission line   
收稿日期: 2015-10-12      出版日期: 2017-07-19
PACS: TM726  
基金资助:国家自然科学基金项目(51337006、51177101)和国家电网公司科技项目(环境友好型中压开关绝缘技术研究)资助
通讯作者: 李 冰 女,1991年生,硕士研究生,研究方向为气体放电与气体绝缘。E-mail: b720@sjtu.edu.cn   
作者简介: 肖登明 男,1953年生,博士,教授,博士生导师,研究方向为气体放电与气体绝缘、电力设备在线监测等。E-mail: dmxiao@sjtu.edu.cn
引用本文:   
李冰, 肖登明, 赵谡, 张辉. 第二代气体绝缘输电线路的温升数值计算[J]. 电工技术学报, 2017, 32(13): 271-276. Li Bing, Xiao Dengming, Zhao Su, Zhang Hui. Temperature Rise Numerical Calculation of the Second Generation Gas Insulated Transmission Line. Transactions of China Electrotechnical Society, 2017, 32(13): 271-276.
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