IEC 61850-Based Feeder Terminal Unit Modeling and Mapping to IEC 60870-5-104

The feeder terminal unit (FTU) is a kind of remote terminal unit along distribution feeders that allows the communication of a local process to a master or central system. In order to realize the plug-and-play function of FTUs, the FTU information models by using the IEC 61850 modeling method are proposed. And the information model and communication services model are mapped to telecontrol protocols IEC60870-5-104. The extensions to the IEC 60870-5-104 are also proposed to support the exchange of the model information. A prototype system is developed. The system demonstrated that the seamless communication between the master station and FTU can be realized using the proposed modeling and mapping methods.