适用于多级变电站串供的远方备自投方案及应用  

Remote Backup Automatic Switching Scheme and Application for Multi-stage Substations with Serial Power Supply

作　　者：孙竟成 侯念国 杨金叶 冯照飞 李飞 宋晓民 郭金霞 SUN Jingcheng;HOU Nianguo;YANG Jinye;FENG Zhaofei;LI Fei;SONG Xiaomin;GUO Jinxia(State Grid Shandong Electric Power Company Zibo Power Supply Company,Shangdong Zibo 255000,China)

机构地区：[1]国网山东省电力公司淄博供电公司,山东淄博255000

出　　处：《农村电气化》2025年第1期29-34,共6页Rural Electrification

基　　金：国网山东省电力公司科技项目(多功能电力二次向量智能检测分析技术及装置研制)(2022A-171)

摘　　要：为实现电力系统故障时备用电源能快速投入的目标,文章综合考虑站内备自投和远方备自投,提出一种适用于多级变电站串供的远方备自投方案。在串供变电站中引入开环站和非开环站的概念,其中开环站考虑站内备自投和远方备自投,非开环站只考虑站间远方备自投;站间通道采用双通道设计,可同时跟左右相邻变电站通信,以实现备自投装置对本站所处拓扑位置的识别;通过站间实时通信和不同备自投方式配合,可在电力系统故障后缩小故障范围、最大程度上恢复供电。该方案已应用于淄博市35 kV串供变电站,通过模拟不同故障下各站备自投装置动作结果,实践验证了文章所提远方备自投方案的有效性和可靠性。To achieve the goal that the backup power supply can be used quickly when power system fails,a remote backup automatic switching scheme for multi-stage substations with serial power supply is proposed.The concepts of open loop substation and non-open loop substation are introduced in serial substation.The open loop substation considers in-station backup switching-in and remote backup switching-in while the non-open loop station only considers remote backup switching-in.The inter substation communication channel adopts a dual channel design,which can communicate with adjacent substations on both sides at the same time to recognize the topology position recognize the backup automatic switching device.Through real-time communication between substations and the coordination of different backup automatic switching methods,recognize can be reduced,and power supply can be restored to the maximum extent after a power system failure.The scheme has been applied to a 35 kV serial supply substation in Zibo,Shandong.The device actions under different power system faults are simulated.The experimental results verify the effectiveness and reliability of proposed scheme.

关 键 词：多站串供 通信通道 远方备自投 动作逻辑 

分 类 号：TM762[电气工程—电力系统及自动化]