摘要
为改善330 kV分段式复合绝缘子的电磁工作环境,优化均压环结构,配置合适的均压方案,采用三维有限元软件进行建模分析计算,比较大均压环参数(环径、管径、罩入深度)与表面场强的关系,综合考虑选择其参数配置,在确定大均压环尺寸的基础上对小均压环的参数进行优化,得到合理的均压结构参数:大均压环环径、管径、罩入深度分别为350 mm、50 mm、125 mm;小均压环环径、管径、罩入深度分别为100 mm、25 mm、20 mm。该方案有效改善了均压环与复合绝缘子表面场强分布的不均匀性,对实际工程具有一定的借鉴意义。
To improve the electromagnetic working environment of the 330 kV segmented composite insulator,optimize the voltage-sharing structure and configure the proper voltage-sharing scheme,we use 3D finite element software for modeling and analysis,comparing the relationship between large grading ring parameters(the ring diameter,pipe diameter and cover depth)and the surface field strength,selecting the parameter configuration by comprehensive consideration,and optimizing the parameters of the small grading ring on the basis of determining the size of the large grading ring,and the following reasonable parameters of the grading structure are obtained:the ring diameter,pipe diameter and cover depth of the large ring should be 350 mm,50 mm and 125 mm respectively,and those of the small ring be 100 mm,25 mm and 20 mm respectively.The scheme can effectively improve the uneven distribution of the surface field intensity of the voltage grading ring and composite insulator,which can be used as a reference for practical engineering.
作者
万康鸿
吴昊
韩彦华
王荆
杨鼎革
牛博
王闯
WAN Kanghong;WU Hao;HAN Yanhua;WANG Jing;YANG Dingge;NIU Bo;WANG Chuang(State Grid Shaanxi Electric Power Company,Xi’an 710048,Shaanxi,China;Electric Power Research Institute of State Grid Shaanxi Electric Power Company,Xi’an 710100,Shaanxi,China;School of Electrical Engineering,Xi’an University of Technology,Xi’an 710054,Shaanxi,China)
出处
《电网与清洁能源》
北大核心
2021年第3期31-37,46,共8页
Power System and Clean Energy
基金
国家自然科学基金青年基金项目(51707155)。
关键词
330
kV
分段式复合绝缘子
均压环
电场分布
330 kV
segmented composite insulator
grading ring
electric field distribution
