Electric field strength distribution on the surface of contact network insulators for railroads under rainfall environment

2023 IEEE 6th International Electrical and Energy Conference (CIEEC) Pub Date : 2023-05-12 DOI:10.1109/CIEEC58067.2023.10166258

Zhenwei Zhao, Ze Li, Chengzheng Li, Wenhao Gao, Yongpeng Liu, Kai Nie, Shuqi Li, Jingjing Yang, Qingquan Li

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Abstract

Under the rainfall environment, the electric field strength on the contact network insulator surface is distorted, which is detrimental to the normal operation of the high-speed railroads power system. To study the correlation between water droplets and insulator electric field characteristics, the electric field distribution on the surface of contact network insulators was simulated in multi-physics field simulation software. The effects of different water droplet parameters on the electric field distortion characteristics of the contact network insulator surface were analyzed with the electric field distortion rate as the evaluation criterion. The results showed that the presence of water droplets caused a severe distortion of the electric field. The water droplet spacing has the greatest effect on the distortion characteristics of the electric field, which is about 275%. Therefore, it is of great importance to analyze the influence of water droplets on the insulator surface on the field strength distribution under the rainfall environment.

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降雨环境下铁路接触网绝缘子表面电场强度分布

在降雨环境下，接触网绝缘子表面电场强度发生畸变，不利于高速铁路电力系统的正常运行。为了研究水滴与绝缘子电场特性的相关性，利用多物理场仿真软件对接触网绝缘子表面的电场分布进行了模拟。以电场畸变率为评价标准，分析了不同水滴参数对接触网绝缘子表面电场畸变特性的影响。结果表明，水滴的存在引起了电场的严重畸变。水滴间距对电场畸变特性的影响最大，约为275%。因此，分析降雨环境下绝缘子表面水滴对场强分布的影响具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2023 IEEE 6th International Electrical and Energy Conference (CIEEC)

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