盐密对污秽复合绝缘子电场与温度场的影响研究  

Study on the Effect of Salt Density on Electric and Temperature Field of Contaminated Composite Insulator

作　　者：李静[1] 许鹏娟 杨光 冯宇宁 付思 Li Jing;Xu Pengjuan;Yang Guang;Feng Yuning;Fu Si(Shenyang University of Technology Shenyang 110870 China;Ping Gao Group Co.,Ltd.Pingdingshan 467001 China;Shenyang University of Technology Liaoyang 111000 China)

机构地区：[1]沈阳工业大学电器新技术与应用研究所,沈阳110870 [2]平高集团有限公司,平顶山467001 [3]沈阳工业大学化工过程自动化学院,辽阳111000

出　　处：《电气工程学报》2018年第7期23-30,共8页Journal of Electrical Engineering

基　　金：辽宁省教育厅(LGD2016029,LGD2016033)资助项目

摘　　要：随着工农业高速发展,污染已成为影响电网安全运行的严重隐患,户外复合绝缘子污闪现象时有发生。为了了解污闪特性,本文以FZSW-10/4型支柱复合绝缘子为研究对象,对污秽绝缘子的电场和温度场进行了仿真,并分析了绝缘子积污后最易产生局部电弧的位置。仿真结果表明了盐密的导电作用使电场发生畸变,造成局部电场强度增加明显;此外,污秽绝缘子的温度分布特性揭示了盐密对绝缘子沿面温度的影响,为防止绝缘子污秽闪络的发生提供了理论依据。With the rapid development of industry and agriculture, pollution has become a serious hidden danger to the safe operation of power grid, and flashover of outdoor composite insulators has occurred frequently. In order to understand the specific characteristics of flashover, the FZSW-10/4 composite insulator is used as the research object in this paper. Electric field and the temperature field were simulated, and the location where partial arc of insulator is more easily to ocurr is analyzed. The simulation results show that the conductive effect of salt density distort the electric field and makes the local electric field strength increase significantly. The temperature distribution characteristic of polluted insulators reveals the relationship between salt density and insulator surface temperature, which provides a theoretical basis for preventing insulator flashover.

关 键 词：复合绝缘子 污秽闪络 电场仿真 等值盐密 温度场仿真 

分 类 号：TM216[一般工业技术—材料科学与工程] TM852[电气工程—电工理论与新技术]