摘要
站用电系统是变电站操作、监控、通信的保证,也是电网设备正常运行和信号正确上送的基础。由于部分变电站站用电系统设备老化、未可靠接入UPS电源等原因,当一次系统发生故障跳闸时有可能使调度数据网两个通道退出,造成变电站信号上传中断,影响监控值班员对跳闸事故的分析和处置。本文首先对一起10 kV线路故障跳闸造成的通信通道退出案例进行深入分析,然后对徐州地区的变电站线路跳闸引起的双通道退出事件进行关联性统计,最后提出改进和应对措施。
Station power supply system is the guarantee of substation operation,monitoring and communication,and also the basis of normal operation of power grid equipment and correct signal transmission.Due to the aging of equipment in some substation power system and unreliable access to UPS power supply,two channels of dispatching data network may exit when a system failure trip occurs,resulting in the interruption of substation signal upload,which affects the monitoring duty personnel's analysis and handle trip accidents.This paper firstly analyzes the communication channel exit case caused by a 10 kV line fault trip,and then conducts correlation statistics on the double-channel exit events caused by the substation line trip in Xuzhou area,and finally puts forward improvements and countermeasures.
作者
顾春阳
张乐
GU Chunyang;ZHANG Le(State Grid Jiangsu Electric Power Co.,Ltd.Xuzhou Power Supply Branch,Jiangsu Xuzhou 221000,China)
出处
《农村电气化》
2024年第11期57-61,共5页
Rural Electrification
