强风沙尘环境下车顶复合绝缘子薄弱环节与优化综述*

doi:10.11985/2020.02.001

摘要/Abstract

摘要：

随着高速铁路运行速度的不断提高,对列车车顶高压系统运行性要求也逐渐增加。强风沙尘环境下,车顶复合绝缘子受到了极大的考验,其绝缘性能均出现了不同程度的降低,闪络事故频发,严重影响了高铁的安全稳定运行。首先介绍了强风沙尘环境下车顶绝缘子的薄弱环节并对存在的问题进行了研究,包括撕裂、积污、闪络特性以及磨损等方面。然后对车顶绝缘子的优化方案包括材料配方优化、结构优化及在线检测装置研发等方面进行了分析。最后指出了车顶复合绝缘子亟需解决的问题和未来研究发展的方向,希望从绝缘子材料配方、伞裙和高压绝缘系统结构以及绝缘子状态监测系统入手,提高动车组高压系统运行可靠性。

关键词: 强风沙尘环境, 车顶绝缘子, 闪络, 薄弱环节, 优化

Abstract:

With the continuous improvement of high-speed railway operation speed, the operational requirements of high-pressure system on the train roof are gradually increasing. Under the strong wind and dust environment, the roof composite insulator is greatly tested, and its insulation performance is reduced to varying degrees. Flashover accidents frequently occur, which seriously affects the safe and stable operation of the high-speed rail. The weak links and research problems of the roof insulator under working conditions are introduced, and the optimization scheme of the roof insulator is studied, including material formulation optimization, structure optimization and online detection device development. Finally, the problems that need to be solved in the composite insulator of the roof and the direction of future research and development are pointed out. It is hoped that the operation reliability of electrical multiple unit (EMU) high voltage system can be improved by starting with insulator material formula, high voltage insulation system structure and insulator condition monitoring system.

Key words: Strong wind and dust environment, composite insulator, flashover, weak link, optimization

中图分类号:

TM85

向奕同, 陈攀, 赵玉顺. 强风沙尘环境下车顶复合绝缘子薄弱环节与优化综述^*[J]. 电气工程学报, 2020, 15(2): 1-10.

XIANG Yitong, CHEN Pan, ZHAO Yushun. Overview of Weak Links and Optimization of Roof Composite Insulator in High-speed Sand Environment[J]. Journal of Electrical Engineering, 2020, 15(2): 1-10.

图/表 10

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参考文献 40

[1]	马建桥. 动车组高压设备外绝缘性能及结构优化研究[D]. 北京:华北电力大学, 2016.
[2]	包健康, 张血琴, 高波, 等. 高速气流对环氧树脂车顶绝缘子电痕深度影响的研究[J]. 高压电器, 2017,53(11):109-114.
	Bao Jiankang, Zhang Xueqin, Gao Bo, et al. Effects of speedy airflow on trace depth of roof epoxy insulatorr[J]. High Voltage Apparatus, 2017,53(11):109-114.
[3]	吴广宁, 石超群, 张血琴. 高速列车车顶绝缘子的研究进展[J]. 南方电网技术, 2016,10(3):71-77.
	Wu Guangning, Shi Chaoqun, Zhang Xueqin. Research progress of roof insulator used for high-speed train[J]. Southern Power System Technology, 2016,10(3):71-77.
[4]	邓志祥, 彭宗仁, 尹桂来. 高速列车车顶高压设备电场仿真计算及金具结构优化[J]. 高压电器, 2016,52(11):149-156.
	Deng Zhixiang, Peng Zongren, Yin Guilai. Simulation of electrical field of high-speed train high-voltage roof equipment and structure optimization of fittings[J]. High Voltage Apparatus, 2016,52(11):149-156.
[5]	王长水, 陈贤尽, 伍本才. 柱式复合绝缘子伞裙及护套撕裂原因分析[C]// 输变电年会. 2009-08-01,常州. 2010: 313-316.
	Wang Changshui, Chen Xianjin, Wu Bencai. Analysis of the causes of the tearing of the umbrella skirt and sheath of post composite insulator[C]// Annual Meeting of Power Transmission and Transformation. August 1,2009,Changzhou. 2010: 313-316.
[6]	贾志东, 马国祥, 朱正一, 等. 复合绝缘子在强风下的形变及应力集中程度[J]. 高电压技术, 2015,41(2):602-607.
	Jia Zhidong, Ma Guoxiang, Zhu Zhengyi, et al. Deformation and stress concentration of composite insulator in strong wind[J]. High Voltage Engineering, 2015,41(2):602-607.
[7]	王希林, 朱正一, 马国祥, 等. 强风区复合绝缘子伞裙撕裂研究[J]. 电网技术, 2013,37(10):2845-2849.
	Wang Xilin, Zhu Zhengyi, Ma Guoxiang, et al. Research on shed crack of composite insulators used in strong wind area[J]. Power System Technology, 2013,37(10):2845-2849.
[8]	赵玉顺, 向奕同, 董冰冰, 等. 强风沙尘环境下车顶复合绝缘子风压分布和形变特性研究[J]. 高压电器, 2019,55(12):7-14.
	Zhao Yushun, Xiang Yitong, Dong Bingbing, et al. Study on the wind pressure distribution and deformation characteristics of roof composite insulators in high-speed sand environment[J]. High Voltage Apparatus, 2019,55(12):7-14.
[9]	隋彬, 孙继星, 吴广宁, 等. 间歇性列车风对支撑绝缘子污闪影响分析[J]. 电瓷避雷器, 2012(2):9-14.
	Sui Bin, Sun Jixing, Wu Guangning, et al. Analysis of influence of intermittent train wind on pollution flashover of support insulators[J]. Insulators and Surge Arresters, 2012(2):9-14.
[10]	杨升杰. 动车组高压隔离开关绝缘子污闪特性研究[D]. 北京:华北电力大学, 2016.
[11]	孙继星. 高速气流环境车顶绝缘子积污特性及其对闪络的影响机理研究[D]. 成都:西南交通大学, 2014.
[12]	孙继星, 罗蜀彩, 吴广宁, 等. 高速列车车顶绝缘子积污分布特性及优化策略[J]. 西南交通大学学报, 2014,49(2):343-350.
	Sun Jixing, Luo Shucai, Wu Guangning, et al. Pollution distribution characteristic of high-speed train roof insulator and its optimization strategy[J]. Journal of Southwest Jiaotong University, 2014,49(2):343-350.
[13]	律方成, 刘宏宇, 汪佛池, 等. 高速气流条件下污秽颗粒在复合绝缘子表面的沉积判据[J]. 电工技术学报, 2017,31(1):206-213.
	Lü Fangcheng, Liu Hongyu, Wang Fochi, et al. Deposit criterion of pollution particles on composite insulators surface under high speed aerosol[J]. Transactions of China Electrotechnical Society, 2017,31(1):206-213.
[14]	李静, 许鹏娟, 杨光, 等. 盐密对污秽复合绝缘子电场与温度场的影响研究[J]. 电气工程学报, 2018,13(7):23-30.
	Li Jing, Xu Pengjuan, Yang Guang, et al. Study on the effect of salt density on electric and temperature field of contaminated composite insulator[J]. Journal of Electrical Engineering, 2018,13(7):23-30.
[15]	宋敏. 有限元分析在接触网绝缘子电场分析中的应用[J]. 电气工程学报, 2019,14(2):109-114.
	Song Min. Application of finite element analysis in electric field analysis of contact network insulators[J]. Journal of Electrical Engineering, 2019,14(2):109-114.
[16]	尹现彬, 张血琴, 康永强, 等. 高速沙尘环境对针-板电极击穿电压的影响[J]. 高电压技术, 2018,44(12):3973-3979.
	Yin Xianbin, Zhang Xueqin, Kang Yongqiang, et al. Breakdown voltage of needle-plate air gaps in high-speed sand environment[J]. High Voltage Engineering, 2018,44(12):3973-3979.
[17]	张友鹏, 赵珊鹏, 陈志东, 等. 悬浮沙粒对棒形绝缘子电位和电场分布的影响[J]. 高电压技术, 2014,40(9):2706-2713.
	Zhang Youpeng, Zhao Shanpeng, Chen Zhidong, et al. Influence of suspended sand particles on potential and electric field distribution along long rod insulator[J]. High Voltage Engineering, 2014,40(9):2706-2713.
[18]	郎艳, 王艺博, 苏国强, 等. 表面粗糙度对有机玻璃材料真空沿面闪络特性的影响[J]. 高电压技术, 2015,41(2):474-478.
	Lang Yan, Wang Yibo, Su Guoqiang, et al. Influence of surface roughness on vacuum flashover characteristics of PMMA[J]. High Voltage Engineering, 2015,41(2):474-478.
[19]	Ding L, Li C R, Wang J, et al. Influence of sintering temperature on the flashover performance of alumina insulators in vacuum[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2002,9(2):182-186.
[20]	Yamamoto O, Takuma T, Fukuda M, et al. Improving withstand voltage by roughening the surface[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2003,10(4):550-556.
[21]	Anderson R A, Brainard J P. Mechanism of pulsed surface flashover involving electron-stimulated desorption[J]. Journal of Applied Physics, 1980,51(3):1414-1421.
[22]	Miller H C. Flashover of insulators in vacuum:The last twenty years[J]. IEEE Transactions on Dielectrics & Electrical Insulation, 2016,22(6):3641-3657.
[23]	El Shahat M, Anis H. Risk assessment of desert pollution on composite high voltage insulators[J]. Journal of Advanced Research, 2014,5(5):569-576. doi: 10.1016/j.jare.2013.07.008 pmid: 25685525
[24]	Yang Shifang, Jia Zhidong, Ouyang Xiaogang, et al. Hydrophobicity characteristics of algae-fouled HVDC insulators in subtropical climates[J]. Electric Power Systems Research, 2018(163):626-637.
[25]	Zhao Yushun, Xiang Yitong, Gu Shanqiang, et al. Effect of surface roughness on flashover characteristics of silicone rubber[J]. Journal of Electrostatics, 2019(99):41-48.
[26]	向奕同. 强风沙尘环境下车顶复合绝缘子形变特性与外绝缘放电特性研究[D]. 合肥:合肥工业大学, 2019.
[27]	白欢. 复合绝缘子憎水性评估方法及憎水性对闪络特性影响研究[D]. 重庆:重庆大学, 2011.
[28]	晏年平, 房子祎, 万华, 等. 高温硫化硅橡胶老化状况及表征技术研究进展[J]. 绝缘材料, 2017,50(12):1-9.
	Yan Nianping, Fang Ziyi, Wan Hua, et al. Research progress in ageing condition and characterization technology of high temperature vulcanized silicone rubber[J]. Insulating Materials, 2017,50(12):1-9.
[29]	Ghosh D, Khastgir D. Degradation and stability of polymeric high-voltage insulators and prediction of their service life through environmental and accelerated aging processes[J]. ACS Omega, 2018,3(9):11317-11330. doi: 10.1021/acsomega.8b01560 pmid: 31459240
[30]	陈龙. 不同配方体系娃橡胶微结构及憎水恢复性研究[D]. 武汉:武汉大学, 2018.
[31]	陈鹏, 肖祥, 黄杨珏, 等. 干式变压器用高性能硅橡胶绝缘材料研究[J]. 绝缘材料, 2019,52(11):35-38.
	Chen Peng, Xiao Xiang, Huang Yangjue, et al. Research on high performance silicone rubber insulating material for dry-type transformerr[J]. Insulating Materials, 2019,52(11):35-38.
[32]	谢从珍. 硅橡胶复合绝缘子伞裙优化研究[D]. 广州:华南理工大学, 2010.
[33]	周升. 高速电力机车车顶用有机复合绝缘子的研究与开发[D]. 长沙:湖南大学, 2004.
[34]	谢学文, 何俊佳, 谢耀恒. 一种车顶绝缘子的新型结构设计[J]. 机车电传动, 2009(6):24-28.
	Xie Xuewen, He Junjia, Xie Yaoheng. A new structure design of locomotive roof insulator[J]. Electric Drive For Locomotives, 2009(6):24-28.
[35]	王言, 贾志东, 朱正一, 等. 基于流固耦合方法的强风区复合绝缘子结构研究[J]. 电网技术, 2016,40(1):316-321.
	Wang Yan, Jia Zhidong, Zhu Zhengyi, et al. Research on the structure of composite insulators used in strong wind area based on fluid-structure interaction method[J]. Power System Technology, 2016,40(1):316-321.
[36]	黄志祥, 陈立, 蒋科林. 高速列车减小空气阻力措施的风洞试验研究[J]. 铁道学报, 2012,34(4):16-21.
	Huang Zhixiang, Chen Li, Jiang Kelin. Wind tunnel test of air-drag reduction schemes of high-speed trains[J]. Journal of the China Railway Society, 2012,34(4):16-21.
[37]	支永健. 弓网电弧电磁干扰传播的若干理论研究[D]. 杭州:浙江大学, 2013.
[38]	方春华, 王建国, 赵灵, 等. 污移绝缘子表面局部电弧与泄漏电流波形特征间对应关系分析[J]. 高电压技术, 2012,38(3):609-615.
	Fang Chunhua, Wang Jianguo, Zhao Ling, et al. Corresponding relation between partial arc and leakage current waveform characteristics of polluted insulator[J]. High Voltage Engineering, 2012,38(3):609-615.
[39]	尹国龙. 高速列车车顶绝缘子绝缘状态监测系统的研究[D]. 成都:西南交通大学, 2015.
[40]	罗蜀彩. 高速列车车顶绝缘子污秽状态及沿面起弧时温度场分析研究[D]. 成都:西南交通大学, 2015.