电力系统及其自动化学报2026，Vol.38Issue(1)：23-29,41,8.DOI:10.19635/j.cnki.csu-epsa.001728
车顶绝缘子动态覆冰及其闪络特性
Dynamic Ice Accumulation and Flashover Characteristics of Roof Insulators
摘要
Abstract
The roof insulators are prone to ice accumulation since they are exposed to harsh environments for extended periods,which poses a threat to the operation safety of trains.As a result,there is an urgent need for systematic re-search on their dynamic ice accumulation and flashover characteristics.In this paper,an ice accumulation test platform capable of simulating the constant wind speed conditions was constructed to simulate the ice accumulation process at dif-ferent ambient temperatures.In addition,flashover tests were conducted to collect the data on flashover arc develop-ment and voltage.Meanwhile,a finite element electric field simulation model of an insulator under ice accumulation conditions was developed,so as to analyze the influences of various ice accumulation forms on the distribution of sur-face electric field.Results indicate that ambient temperature significantly affected the ice growth and ultimately led to differences in flashover characteristics.Combined with simulations,the electric field distortion characteristics corre-sponding to different ice accumulation characteristics were also identified.The findings in this paper can provide data support and model reference for ensuring the operation safety of high-speed trains and anti-ice accumulation efforts un-der severe environmental conditions.关键词
车顶绝缘子/气流环境/覆冰闪络/电场仿真Key words
roof insulator/airflow environment/icing flashover/electric field simulation分类
信息技术与安全科学引用本文复制引用
朱新宇,陈卓,胡广才,刘毅杰..车顶绝缘子动态覆冰及其闪络特性[J].电力系统及其自动化学报,2026,38(1):23-29,41,8.基金项目
国家自然科学基金联合基金资助项目(U24A20153) （U24A20153）
中央高校基本科研业务费专项资金资助项目(ZJ2023-012). （ZJ2023-012）
