覆冰绝缘子伞群结构优化有限元分析  

Finite Element Analysis on Optimizing Structure of Ice-Covered Insulator Sheds Group Structure

作　　者：李永刚[1] 张嘉赛 赵莹[1] 黄成才[1] 李沛然[2] 

机构地区：[1]华北电力大学电力工程系.河北保定071003 [2]青海省电力公司海西供电公司,青海格尔木816000

出　　处：《电瓷避雷器》2015年第4期32-37,共6页Insulators and Surge Arresters

摘　　要：为了探究不同伞群结构下复合绝缘子覆冰情况时绝缘子附近电场的变化情况,使用ansys有限元软件对覆冰复合绝缘子进行了相关分析。通过对覆冰绝缘子不同伞群结构的电场进行系统分析,得出加大顶伞和大伞伞径会改善覆冰绝缘子整体伞群尤其是第一大伞的电场分布情况,但伞径并不是越大越好,随着伞径的增加空气间隙电位差会有所增大进而削弱增大伞径的改善能力,除此之外对不同的小伞伞径情况也做了相关分析,为常年处于冰雪天气下的绝缘子选型提供了一定的参考。In order to explore the change of electric field near the ice-covered insulator with the different sheds group structure, the ice-covered composite insulator is analyzed by using Ansys finite element software. By systemic analysis of electric field of ice-covered insulator with different umbrella group structure, it is obtained that electric field of whole sheds group especially the biggest shed can be improved by increasing the radius of top shed and big sheds. But the shed radius is not the lager the better, The electric potential difference of the air gap will bigger with increase of the radius of sheds, and then the ability of improving will decrease, and different radius of small sheds are analyzed, that can provide some reference for type selection of the insulators under ice-snow all year.

关 键 词：覆冰 ANSYS 有限元 复合绝缘子 电场分布 

分 类 号：TM216[一般工业技术—材料科学与工程]