Advanced energy-sharing framework for robust control and optimal economic operation of an islanded microgrid system

Energy sharing through a microgrid (MG) is essential for islanded communities to maximize the use of distributed energy resources and battery energy storage systems (BESSs). Proper energy management and control strategies of such MGs can offer revenue to prosumers (active consumers with distributed energy resources) by routing excess energy to their neighbors and maintaining grid constraints at the same time. This chapter proposes an advanced power-routing framework for a solar-photovoltaic (PV)-based islanded MG with a central storage system (CSS). After optimization of the economic operation of the MG, the power routing and energy sharing in the MG are determined in the day-ahead stage. A modified droop controller-based real-time control strategy has been established that maintains the voltage constraints of the MG. The proposed power-routing framework is verified via a case study for a typical islanded MG. The outcome of the optimal economic operation and a controller verification of the proposed framework are presented to demonstrate the effectiveness of the proposed power-routing framework. Results reveal that the proposed framework performs a stable control operation and provides a profit of 57 AU$/day at optimal conditions.