基于逻辑节点的分布式馈线自动化拓扑识别

Logical Node Based Topology Identification of Distributed Feeder Automation

分布式馈线自动化(FA)需要馈线实时拓扑信息实现故障定位、隔离以及非故障区段的供电恢复。文中分析了分布式FA应用对馈线实时拓扑信息的需求,基于IEC 61850建模方法新建了单元拓扑逻辑节点和拓扑片节点以描述馈线拓扑。使用智能终端配置的拓扑片信息和当前的开关设备状态信息,基于深度优先搜索可实现馈线实时拓扑的识别,满足分布式FA应用需求,算例验证了方法有效性。

Distributed feeder automation(FA)requires real-time topology information of feeders to realize fault location,isolation,and power restoration of non-faulty sections.This paper analyzes the requirements of feeder real-time topology information for the application of distributed FA.Based on the modeling method of IEC 61850,new unit topology logic nodes and topology slice nodes are created to describe the feeder topology.Using the topology information configured in the smart terminal unit(STU)and the status information of the current switch device,the real-time topology identification of feeder is realized based on depth-first search to meet the application requirements of distributed FA.The validity of the proposed method is verified through case study.