中国电机工程学报Issue(22)：183-190,8.
基于有限元法的染污直流支柱复合绝缘子伞裙参数优化
Optimization of Shed Parameters of Polluted DC Post Composite Insulators Based on Finite Element Method
摘要
Abstract
The pollution flashover problem of DC post insulators is much more serious than that of AC post insulators. Sheds optimization can ameliorate the pollution flashover characteristic of DC post insulators. Based on the sheds optimization result of artificial pollution tests, this paper established polluted post insulators by finite element method and studied the electric field distribution along polluted insulators influenced by spacing between large sheds, overhang of the large shed and difference between overhangs of the large shed and small shed. The creepage distance and electric field were put forwards as the criterion to optimize the parameters of sheds. The results show that, as the spacing between large sheds increases, the average electric field of post insulators decreases gradually;as the overhang of the large shed increases, the average electric field of post insulators increase by degrees;as the difference between overhangs of the large shed and small shed increases, the creepage coefficient decreases monotonously, and the average electric field of post insulators is reduced and oscillated. Finally, advice parameters for follow-up researches on shed profile optimization of DC post insulators were put forwards.关键词
有限元法/染污直流支柱绝缘子/伞裙优化/电场分布Key words
finite element method (FEM)/polluted DC post insulators/shed profile optimization/distribution of electric field分类
信息技术与安全科学引用本文复制引用
郝艳捧,熊国锟,刘芹,薛艺为,李立浧..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,(22):183-190,8.基金项目
国家重点基础研究发展计划项目(973计划)(2009CB 724507)；特高压工程技术(昆明、广州)国家工程实验室开放基金(NEL201305)。@@@@The National Basic Research Program of China (973 Program)(2009CB724507) （973计划）
Open Fund of National Engineering Laboratory for Ultra High Voltage Engineering Technology (Kunming, Guangzhou)(NEL201305) （Kunming, Guangzhou）
