Modeling Solid State Transformer in IEC 61850

Abstract- Solid state transformer (SST) is a bi-directional electricity exchange device that is proposed to accommodate widespread Distributed Renewable Energy Resources (DRERs) and Distributed Energy Storage Devices (DESDs) into the existing distribution systems. IEC 61850 is the leading standard for power system communications and affords the integration of devices of different types into the system. It is obvious that SST has to be modeled with IEC 61850 in order to support its incorporation with DRERs and DESDs to the distribution system. In this paper a model of a SST and its mapping to IEC 61850 is presented. Existing logical nodes and their use are considered and a new logical node is also presented. Keywords-solid state transformer; FREEDM; modeling; IEC 61850; logical node I