智能变电站线路保护光纤纵差调试研究  

Research on Optical Fiber-based Longitudinal Differential Protection Debugging for Lines of Smart Substations

作　　者：翟星宇 贺子清 张俣妤[1] ZHAI Xingyu;HE Ziqing;ZHANG Yuyu(Maintenance Company of State Grid Beijing Electric Power Co.,Ltd.,Beijing 100073)

机构地区：[1]国网北京市电力公司检修分公司,北京100073

出　　处：《电力安全技术》2024年第7期47-50,共4页Electric Safety Technology

摘　　要：光纤纵差保护是保护输电线路设备平稳运行的主要手段,智能变电站光纤纵差保护存在多种功能方式。通过对智能变电站线路保护中的光纤纵差保护各项功能调试方法进行探究与梳理,针对光纤纵差保护中工频变化量差动、稳态I段和II段相差动、零序电流差动以及CT断线时的差动保护等提出了详实、易操作的调试方案,满足了站内作业人员对于智能变电站线路保护装置中光纤纵差保护的调试需求,缩短了智能变电站线路保护的调试时间。Optical fiber-based longitudinal differential protection is a major approach for line protection,and there are multiple functional modes of optical fiber-based longitudinal differential protection for smart substations,By exploring and sorting out the debugging methods for various functions of optical fiber-based longitudinal differential protection for line protection of substations,a debugging plan more detailed and easy to operate is proposed corresponding to the power frequency variation of fiber-based longitudinal differential protection,steady-state segment-I and II differential protection as well as differential protection in case of zero-sequence current and CT breakage,which fulfills the debugging needs of substation operators'for optical fiber longitudinal differential protection in the line protection devices of smart substation,and shortens the debugging time of line protection for the smart substations.

关 键 词：光纤纵差保护 调试方法 线路保护装置 智能变电站 

分 类 号：TM7733[电气工程—电力系统及自动化]