中压开关柜内部短路燃弧热–力效应研究综述  

Review on Thermal-mechanical Effects Research of MV Switchgear Due to Internal Short Circuit Arcing

作　　者：阮江军[1] 黎鹏 黄道春[1] 张力[1] 魏梦婷[1] 龙明洋 RUAN Jiangjun;LI Peng;HUANG Daochun;ZHANG Li;WEI Mengting;LONG Mingyang(School of Electrical Engineering,Wuhan University,Wuhan 430072,China;College of Electrical Engineering and New Energy,Three Gorges University,Yichang 443002,China)

机构地区：[1]武汉大学电气工程学院,武汉430072 [2]三峡大学电气与新能源学院,宜昌443002

出　　处：《高电压技术》2018年第10期3340-3351,共12页High Voltage Engineering

基　　金：“十一五”国家科技支撑计划项目(2009BAA19B05);中央高校基本科研业务费专项资金(2042016gf0008)~~

摘　　要：中压开关柜是电力系统中重要的控制与保护设备,近年来,开关柜内部短路燃弧故障时有发生,其产生的高压力和高温效应对设备、建筑物以及工作人员的安全造成了巨大威胁。对中压开关柜内部短路燃弧热–力效应研究进行了综述,详细介绍了开关柜内部短路燃弧特性以及不同数值计算方法的差异,分析了国内外封闭容器以及开关柜内部短路燃弧试验与仿真方面的研究现状。分析表明：关于中压开关柜内部短路燃弧压力升及温升方面缺乏系统有效研究,建议开展实际中压开关柜在不同条件下的短路燃弧试验,结合内部电弧燃烧特性,建立热-力效应数值仿真模型,提出中压开关柜柜体强度校核方法与流程,并对泄压通道进行优化。Medium-voltage（MV） switchgear is an important control and protection device in power system. In recent years, the internal short circuit arcing fault of switchgear occurs frequently, which causes a great threat to the safety of the device, building, and operation personnel due to the effect of high pressure and high temperature. We reviewed the researches of the thermal-mechanical effects caused by the short circuit arcing inside the MV switchgear. Meanwhile, we introduced the characteristics of the short circuit arcing inside the switchgear and the differences of the different numerical calculation methods, and analyzed the study status of the internal short circuit arcing test and simulation about the closed container and switchgear in China and abroad. The analysis indicates that the pressure and temperature rise in the MV switchgear due to internal short circuit arcing is lack of system and effective research. The short circuit arcing tests under different conditions in the actual MV switchgear are advised to carry out. Combined with the internal arcing characteristic, it is suggested to set up a numerical simulation model of the thermal-mechanical effects. Then we put forward a strength checking method and procedure for the MV switchgear, and the optimized design method of the pressure-relief channels.

关 键 词：开关柜 封闭容器 内部电弧故障 热–力效应 计算流体动力学 

分 类 号：TM591[电气工程—电器]