基于电场仿真的淋雨状态下大直径复合支柱绝缘子伞裙参数优化

发布时间：2018-04-17 14:13

本文选题：复合支柱绝缘子 + 淋雨　；参考：《高电压技术》2017年06期

【摘要】：伞裙结构是影响复合支柱绝缘子雨闪电压的重要因素之一,通过伞裙结构优化可以改善绝缘子雨闪特性。为此用正交试验方法选取伞裙参数,利用有限元软件ANSYS对复合支柱绝缘子建模仿真,研究淋雨状态下伞间距、大伞伸出、大小伞伸出差对一大一小伞型绝缘子电场分布的影响,提出伞裙沿面电场、空气间隙电场作为绝缘子伞裙优化判据。结果表明:大伞伸出对沿面场强影响最大,伞间距次之,伞伸出差最小;伞间距对空气间隙场强影响最大,大伞伸出次之,伞伸出差最小。通过与试验研究对比发现以空气间隙电场为判据较为准确,为绝缘子伞裙优化试验选取合适的伞裙参数试品提供参考。
[Abstract]:The structure of umbrella skirt is one of the important factors that affect the rain lightning pressure of composite support insulator. The structure optimization of umbrella skirt can improve the rain flashover characteristics of insulator.In this paper, the parameters of umbrella skirt are selected by orthogonal test method, and the modeling and simulation of composite pillar insulators are carried out by using finite element software ANSYS. The effects of umbrella spacing, large and small umbrella protruding, and large and small umbrella protruding difference on the electric field distribution of a large and small umbrella insulator are studied.The electric field along the surface of the umbrella skirt and the electric field in the air gap are proposed as the optimization criteria of the insulator umbrella skirt.The results show that the large umbrella outstretched has the greatest influence on the field strength along the plane, the second is the parachute spacing, and the umbrella extension difference is the smallest, and the umbrella spacing has the greatest influence on the air gap field strength, the larger umbrella extends the second, and the umbrella extension difference is the least.By comparing with the experimental results, it is found that the air gap electric field is a more accurate criterion, which provides a reference for the optimum selection of the parameters of the insulator umbrella skirt.
【作者单位】：华南理工大学电力学院;南方电网科学研究院;
【基金】：国家自然科学基金(51507067) 广东省自然科学基金(2014A030310371) 南方电网公司科技项目(CSGTRC-K153025)~~
【分类号】：TM216

【参考文献】