Feeder Topology Configuration and Application Based on IEC 61850

For description the feeder topology and information exchanging between intelligent electronic devices (IEDs), it is necessary to extend IEC 61850 and add some logical model. Based on the Feeder model in IEC 61970, the Feeder model is also extended in IEC 61850 to serve as equipment container along distribution line. For the physical connection relationship of electrical equipment, Terminal and Connectivity Node logical model are added. Taking logical node XCBR as an example, the attributes for terminals are added to electrical equipment. The logical node LCNN is added to describe the connectivity node. By adding logical node LTPN to describe topological node and FTPA to describe the results of topology analysis, the description of topology analysis results is realized. Based on these logical nodes, the exchange of topology information between intelligent terminals can no longer rely on configuration files, but only need logical nodes. Through the above expansion, the topology description and information exchange of medium and low voltage feeders are realized.