开关柜铜排故障电弧多物理场仿真分析  

Multi-physical field simulation analysis of switch cabinet copper fault arc

作　　者：刘巧玲 杨凯[1,2,3] 王铮 孟辉 董毓利 涂然[1] LIU Qiaoling;YANG Kai;WANG Zheng;MENG Hui;DONG Yuli;TU Ran(Key Laboratory of Process Monitoring and System Optimization of Electromechanical Equipment,Huaqiao University,Xiamen 361021,China;Xiamen Industrial Technology Research Institute,Xiamen 361001,China;School of Civil Engineering,Huaqiao University,Xiamen 361021,China;Licheng Automation Branch,Yixing Electric Power Engineering Construction Co.,Ltd.,Quanzhou 362000,China)

机构地区：[1]华侨大学机电装备过程监测及系统优化福建省高校重点实验室,福建厦门361021 [2]厦门产业技术研究院,福建厦门361001 [3]华侨大学土木工程学院,福建厦门361021 [4]亿兴电力工程建设有限公司鲤城自动化分公司,福建泉州362000

出　　处：《电气应用》2023年第5期32-37,I0004,共7页Electrotechnical Application

基　　金：国家自然科学基金(52175508);中国博士后科学基金(2021M691861);中央高校基本科研业务费专项资金(ZQN-1001)。

摘　　要：开关柜铜排因连接松动、接触不良等原因会产生故障电弧,易诱发电气火灾等安全事故。为研究铜排故障电弧特性,建立了铜排故障电弧的磁流体动力学数学模型,结合实际边界条件,耦合电磁场、流场和温度场,在多物理场仿真软件COMSOL中进行二维建模计算,研究不同电流、不同间距情况下铜排故障电弧的温度、空气流速等多参量的变化规律,为开关柜防弧结构及电弧检测方法的研究提供理论依据。Due to loose connections and poor contact between the copper bars of the switchgear,fault arcs can occur,which can easily lead to safety accidents such as electrical fires.In order to study the characteristics of copper bar fault arcs,a magnetohydrodynamic mathematical model of copper bar fault arcs was established.Combined with actual boundary conditions,coupled with electromagnetic fields,flow fields,and temperature fields,twodimensional modeling and calculation were conducted in the multi-physical field simulation software COMSOL.The variation rules of multi-parameters such as temperature,air flow rate,and so on for copper bar fault arcs with different current and spacing were studied.This provides a theoretical basis for the study of arc prevention structures and arc detection methods for switch cabinets.

关 键 词：开关柜 铜排故障电弧 多物理场耦合 磁流体动力学 多参量 仿真分析 

分 类 号：TM591[电气工程—电器]