染污复合绝缘子电场仿真研究
王晓杰
（国网福建省电力有限公司电力科学研究院，福建 福州 350007）
摘 要：基于Ansoft Maxwell有限元软件，建立了110 kV复合绝缘子及其染污模型，介绍了清洁绝缘子、污染绝缘子电场分布规律，分析了染污绝缘子存在如位置、数量及电参数等不同形式的干燥带时沿面电场的分布规律。研究结果表明：不论绝缘子出现何种形式的干燥带，接近高压端的干燥带总是具有更高的电场强度；干燥带出现在绝缘子伞裙的上下表面时，干燥带的电场分布规律相同；在一定范围内，干燥带电场强度分布取决于干燥带相对介电常数。
关键词：染污绝缘子；干燥带；相对介电常数；有限元分析
中图分类号：TM216 文献标识码：A 文章编号：1007-3175(2017)08-0027-04
Research on Electric Field Distribution of Contaminated Composite Insulators
WANG Xiao-jie
（State Grid Fujian Electric Power Company Research Institute, Fuzhou 350007, China）
Abstract: Based on the software of finite element analysis (FEA), Ansoft Maxwell, this paper established the model of 110 kV composite insulators. Introduction was made to the electric field distribution law of cleaning insulators and contaminated Insulators. This paper analyzed how numbers and location of dry band influenced on its electric field distribution. The research results show that the closer to the high voltage section the dry band, the higher the electric field intensity. When the dry band presented up and down surface of insulators umbrella skirts, their electric field distribution of the dry band had the same law. Within limits, the electric field intensity of the dry band was mainly determined by the relative permittivity of dry band.
Key words: contaminated insulator; dry band; relative permittivity; finite element analysis
参考文献
[1] 张智伟. 输配电线路复合绝缘子的选择与技改[J].绝缘材料，2008，41(1)：26-29.
[2] 罗勇芬，韦加雄，何立柱，等. 内电极和均压环配置法优化复合绝缘子的沿面电场和电位分布[J].电瓷避雷器，2009(1)：7-11.
[3] MUKHERJEE P K, AHMED A, SINGER H.Electric field distortion caused by asymmetric pollution on insulator surfaces[J].IEEE Transactions on Dielectrics and ElectricalInsulation，1999，6(2)：175-180.
[4] HUO Feng, CHEN Yong, CAI Wei, et al.Surface electrical field distribution simulation and insulation characteristics test of polluted insulators[J].High Voltage Engineering，2008，34(12)：2621-2625.
[5] 刘向实. 污秽条件下复合绝缘子电场仿真研究[J].电瓷避雷器，2014(5)：31-36．
[6] 郝艳捧，熊国锟，刘芹，等. 基于有限元法的染污直流支柱复合绝缘子伞裙参数优化[J]. 中国电机工程学报，2013，33(22)：183-190.
[7] 邱大庆. 覆冰、污秽条件下复合绝缘子电场分布研究[J]. 电瓷避雷器，2015(1)：26-30.
[8] CHAKRAVONI S, STEINBIGLER H.Boundary element studies on insulator shape and electric field around HV insulators with or without pollution[J].IEEE Transactions on Electrical Insulation，2000，7(2)：169-176.
