Information Integration System for Microgrid based on the Electric Power Router

Working as the "energy hub" and control center of the microgrid, the electrical power router (EPR) provides standardized electrical and information interfaces to the various distributed generations (DGs) and guarantees seamless connection and plug-and-play to the equipments in the microgrid. However, existing information integration technologies for microgrid need further improvement because they are not adequate enough to guarantee seamless connection and plug-and-play for the DGs and loads getting access to the microgrid through the EPR. Therefore, the information integration system of small AC/DC microgrid with the power router as its core is studied in this paper. Based on the IEC61850 standard, the information model of the electrical router is established. A new logical node-bidirectional power converter is created as supplementary definition to the energy converter information model of IEC61850-7-420. The integral information model of microgrid and exchanging method of information were studied by the end. The works of this paper will enrich the information integration technologies for the microgrid system, and provide reliable support for the operational scheduling and equipment management of microgrid.