动车组固体绝缘隔离开关电场仿真优化设计  

Electric Field Simulation and Optimization Design for Solid-insulated Disconnectors of EMUs

作　　者：刘郑森 薄文彦[2] 张东远 黄永旺 欧阳可进 王俊勇[1] LIU Zhengsen;BO Wenyan;ZHANG Dongyuan;HUANG Yongwang;OUYANG Kejin;WANG Junyong(School of Mechanical Engineering,Southwest Jiaotong University,Chengdu 610031,China;School of Computer and Network Engineering,Shanxi Datong University,Datong 037009,China;Beijing CRRC CED Railway Electric Tech.Co.,Ltd.,Beijing 100176,China;Xiamen Good EP Electrical Co.,Ltd.,Xiamen 361000,China)

机构地区：[1]西南交通大学机械工程学院,四川成都610031 [2]山西大同大学计算机与网络工程学院,山西大同037009 [3]北京中车赛德铁道电气科技有限公司,北京100176 [4]厦门顾德益电气股份有限公司,福建厦门361000

出　　处：《电工技术》2024年第19期186-190,共5页Electric Engineering

摘　　要：为了确保动车组在高海拔环境的安全运行,研究了在动车组高压设备中应用固体绝缘技术。通过对额定电压31.5 kV、工频耐压100 kV的固体绝缘隔离开关进行电场仿真分析,发现电场强度在各绝缘介质中的最大值分别为22.37 kV/mm与7.65 kV/mm,超过各绝缘介质规定场强最优值。通过改变屏蔽网结构、增大绝缘层厚度、增加金属屏蔽网,将场强最大值分别降低为14.93 kV/mm与2.61 kV/mm,达到规定场强标准。通过工频耐压试验验证了固体绝缘隔离开关的优化设计达标。In order to ensure the safe operation of EMUs in high-altitude environments,this paper explores the application of solid insulation technology in high-voltage equipment of EMUs.Through electric field simulation analysis of a solid-insulated disconnector with a rated voltage of 31.5 kV and a power frequency withstand voltage of 100 kV,it was found that the maximum electric field in each insulation medium was 22.37 kV/mm and 7.65 kV/mm,respectively,exceeding the optimal electric field specified for each insulation medium.By changing the structure of the shielding mesh,increasing the thickness of the insulation layer,and adding a metal shielding mesh,the maximum electric field was reduced to 14.93 kV/mm and 2.61 kV/mm,respectively,to meet the specified electric field standards.The optimized design of solid-insulated disconnector has been verified standard-qualified through power frequency withstand voltage tests.

关 键 词：隔离开关 绝缘击穿 电场计算 结构优化 动车组 

分 类 号：U266.2[机械工程—车辆工程]