Power management in multi-microgrid system based on energy routers

This paper proposes a peer-to-peer interaction between microgrids based on energy router to handle network congestions and other local microgrid issues in multi-microgrid system. First, an overview of energy routers in the vision of Energy Internet is addressed. Energy routers with Back-to-Back converter technology is considered in this paper due to its appropriate requirement. Next, a master/slave approach for load sharing and synchronization with energy router in multi-microgrid system is investigated. Finally, a strategy for frequency coordination between microgrids is presented. In fact, in case of frequency violation, microgrids in islanded multi-microgrid system can be supported by other microgrids through an energy router interface. A simulation model is built in MATLAB/Simulink environment to evaluate the efficiency of the proposed method.