具备故障限流功能的中高压快速切换开关  

Middle-to-high Fast Switch With Fault-current-limiting Function

作　　者：陈泽西 王朴 宋雅吾 刘锐 CHEN Ze-xi;WANG Pu;SONG Ya-wu;LIU Rui(North China Electric Power University,Beijing 102206,China;不详)

机构地区：[1]华北电力大学,新能源学院,北京102206 [2]国网北京城区供电公司,北京100034

出　　处：《电力电子技术》2023年第3期40-43,共4页Power Electronics

基　　金：国网北京市电力公司科技项目(52020220004B)。

摘　　要：固态切换开关(SSTS)是城市供电保障的关键装备,为解决现有SSTS装备存在的问题,此处提出一种新颖的具备故障限流功能的中高压固态切换开关装置(FCL-SSTS),其能够实现双路电源的快速切换和短路故障限流的双重功能。当主供电回路电压出现暂降或短时中断时,FCL-SSTS可实现备用供电回路的快速切换。当负荷侧出现短路故障时,FCL-SSTS可以快速实现故障限流功能,从而避免故障的扩大化,FCL-SSTS结构对装置的自我保护以及电力系统的安全可靠运行具有重要意义。Solid state transfer switch(SSTS)is a vital equipment to guarantee reliable power supply in cities.To solve the issues of existing SSTS,a novel middle-to-high voltage fault-current-limiting SSTS(FCL-SSTS)is proposed,which can realize fast switching between dual power sources and limit the short current.When the voltage sag or temporary fault occurs on primary power source,FCL-SSTS can switch to backup power source immediately.When the short circuit fault happens on load,FCL-SSTS can quickly limit short current and constrain further impact,FCL-SSTS has significant importance for its protection to electric assets and safe and reliable operation of power systems.

关 键 词：固态切换开关 故障限流 短路故障 

分 类 号：TM564[电气工程—电器]