Development of IEC 61850 based Feeder IEDs for self-healing operation in distribution network

Recently, in the context of smart grid, the usage of the I EC61850 communication standard gets broader and broader. Though IEC61850 has been used as communication standard for substation automation, the scope that it is applied becomes wider and wider into area of distributed energy resources including storages, communication between substation and control center, feeder automation and EV charging for smart consumers. In the flow of this IEC61850, KEPCO are carrying out the development of Smart Distribution Management System, and as a part of this R&D project, IEC61850 based Feeder IEDs of distribution switchgear is being developed. In this paper, IEC61850 based data model, software & hardware architecture of Feeder IEDs are presented. In addition, protection coordination and service restoration scheme by using peer to peer communication among FIEDs are also presented for self healing operation of distribution network.