一种分相故障限流开关原理与实现  

Principle and implementation of a split phase fault current limiting switch

作　　者：崔建业 张波 林恺丰 林振 李佶 CUI Jianye;ZHANG Bo;LIN Kaifeng;LIN Zhen;LI Jie(Jin Hua Power Supply Company of State Grid,Jinhua 321000,China)

机构地区：[1]国网金华供电公司,浙江金华321000

出　　处：《电气应用》2021年第11期84-88,共5页Electrotechnical Application

基　　金：国网浙江省电力有限公司科技项目(No.5211JH180080)。

摘　　要：随着敏感负荷的不断增加,由系统故障短路等引起的电压暂降造成了越来越多的经济损失。针对于此,提出一种基于IGBT的分相故障限流开关,该开关基于全控型器件IGBT能快速投切限流开关,采用可变电阻能在短路时将短路电流限制到安全范围之内,可显著减轻各种短路带来的电压暂降问题,最后通过实际系统仿真进行实验验证。With the continuous increase of sensitive load,voltage sag caused by lightning stroke and short circuit has caused more and more economic losses.A split phase fault current limiting switch based on IGBT is proposed.The switch is based on the fully controlled device,IGBT can quickly switch on and off the current limiter,and the variable resistor can limit the short-circuit current to the safe range in case of short circuit,and reduce the voltage sag caused by short circuit.Finally,it is verified by the actual simulation system.

关 键 词：敏感负荷 电压暂降 分相故障限流开关 

分 类 号：TM564[电气工程—电器]