[1]张 鸣,吴卫堃,王浩臣.金属氧化物避雷器电热模型的建立及实验验证[J].电瓷避雷器,2020,(02):44-48.[doi:10.16188/j.isa.1003-8337.2020.02.008]
 ZHANG Ming,WU Weikun,WANG Haochen.Electro-Thermal Model for Metal Oxide Surge Arrester and Experimental Verification[J].,2020,(02):44-48.[doi:10.16188/j.isa.1003-8337.2020.02.008]
点击复制

金属氧化物避雷器电热模型的建立及实验验证()
分享到:

《电瓷避雷器》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2020年02期
页码:
44-48
栏目:
避雷器
出版日期:
2020-04-25

文章信息/Info

Title:
Electro-Thermal Model for Metal Oxide Surge Arrester and Experimental Verification
作者:
张 鸣1 吴卫堃2 王浩臣3
(1. 广东电网有限责任公司佛山供电局,广东 佛山 528000; 2.广东电网有限责任公司肇庆供电局,广东 肇庆526000; 3. 西安交通大学电气工程学院,西安 710049)
Author(s):
ZHANG Ming1 WU Weikun2WANG Haochen3
(1. Foshan Power Supply Bureau, Guangdong Power Grid Corporation, Foshan 528000, China; 2. Zhaoqing Power Supply Bureau, Guangdong Power Grid Corporation, Zhaoqing 526000, China; 3. School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China)
关键词:
金属氧化物避雷器 电热模型 有限差分法 过电压
Keywords:
metal-oxide surge arrester electro-thermal model finite difference method overvoltage
DOI:
10.16188/j.isa.1003-8337.2020.02.008
摘要:
本文建立了完整的氧化锌避雷器的电热模型,充分考虑了电阻片内部热的产生以及电阻片之间的热传导、电阻片与瓷套之间空气的对流、瓷套对环境的热辐射等热传导过程,并采用有限差分方法数值分析了该模型。分别搭建了由3个电阻片组成的比例避雷器和一个由37片电阻片组成的柱形金属氧化物避雷器发热测试平台,采用热电偶分别测量了冲击电流作用下电阻片表面、瓷套内表面及瓷套外表面上3个典型位置处温度的上升和冷却曲线,验证了所建立的电热模型及其分析方法的合理性,并进而开展了IEC标准规定的多种典型大电流脉冲作用下避雷器暂态通流能力的评估。
Abstract:
The author presents a computational and electro-thermal model for a complete metal oxide surge arrester. In the model, three heat transfer mechanisms are taken into consideration, including the thermal conduction among the varistors, radiative and convective heat transfer taking place across the annular space between the metaloxide varistor column and air-filed porcelain housing, and implicit finitedifferences method is employed to compute the heating and cooling curve after the application of overvoltages and the temperature variations during standard test. A testing platform was built consisting of a section with 3 varistors and a complete surge arrester with 37 varistors, and k-type thermocouples mounted on the surface of the varistor, the inner and outer surface of the porcelain housing. Good agreement between the experimental and numerical results proves the reasonability and validity of the model, and the behaviors of a hypothetical surge arrester are then assessed under typical high currents specified in IEC standard.

参考文献/References:

[1] 秦家远,阮江军,黄道春.110 kV变压器中性点雷击过电压分析[J].高电压技术,2007, 33(1):99-101. QIN Jiayuan, RUAN Jiangjun, HUANG Daochun. Analysis of lightning overvoltage at neutral point of 110 kV transformer[J]. High Voltage Engineering, 2007, 33(1): 99-101.
[2] 田建华,刘渝根,王双文.氧化锌避雷器在输电线路防雷中的作用[J].高电压技术,2003, 29(11):18-20. TIAN Jianhua, LIU Yugen, WANG Shuangwen. The role of zno lightning arrester in lightning protection of transmission lines[J]. High Voltage Engineering, 2003, 29(11): 18-20.
[3] 李信.高压输电线路氧化锌避雷器技术原理和应用方案的研究[D].北京:华北电力大学,2001.
[4] LAT M V. Thermal properties of metal oxide surge arresters[J]. IEEE Transactions on Power Apparatus and Systems, 1983, PAS-102(7): 2194-2202.
[5] LAT M V. Analytical method for performance prediction of metal oxide surge arresters[J]. IEEE Transactions on Power Engineering Review, 1985, PER-5(10): 2665-2674.
[6] PETIT A, DO X D, ST-JEAN G. An experimental method to determine the electro-thermal model parameters of metal oxide surge arresters[J]. IEEE Transactions on Power Delivery, 1991, 6(2): 715-721.
[7] STOCKUM F R. Simulation of nonlinear thermal behaviour of metal oxide surge arresters using a hybrid finite difference and empincal model[J]. IEEE Transactions on Power Delivery, 1994, 9(1): 306-313.
[8] 李志兵,颜湘莲,王浩,等.金属氧化物避雷器在陡波下的试验与模型分析[J].高电压技术,2012, 38(10):2698-2706. LI Zhibing, YAN Xianglian, WANG Hao, et al. Test and modelanalysis of metal oxide arrester under steep wave[J]. High Voltage Engineering, 2012, 38(10): 2698-2706.
[9] 秦家远.雷击下金属氧化物避雷器ATP仿真模型分析[J].电瓷避雷器,2007(6):41-44. QIN Jiayuan. ATP simulation model analysis of metal oxide arrester under lightning strike[J]. Insulators and Surge Arresters, 2007(6): 41-44.
[10] 杨世铭,陶文铨.传热学[M].北京:高等教育出版社,2006. [11] International Electrotechnical Commission. Surge arresters[S]. Part 4: Metal-oxide surge arresters without gaps for A.C. systems. IEEE Transactions on Power Delivery, 1991, 6(2): 715-72.

备注/Memo

备注/Memo:
收稿日期:2019-12-20作者简介:张鸣(1974—),男,高级工程师,从事输电线路技术管理工作、电力设备状态监管等工作。基金项目:广东省电网公司科技项目(编号:030600KK52170101)。
更新日期/Last Update: 2020-04-25