Advanced Microgrid Energy Management System for Future Sustainable and Resilient Power Grid

• Published in: IEEE transactions on industry applications Vol. 55; no. 6; pp. 7251 - 7260
• Main Authors: Yang, Fang, Feng, Xianyong, Li, Zhao
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-11-2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Distributed energy resource (DER) schedule; Distributed generation; economic dispatch (ED); Economics; Energy management; energy management system (EMS); Energy resources; Energy sources; grid-connected mode; Indexes; island mode; microgrid; Microgrids; Military bases; optimal power flow (OPF); Optimization; Power dispatch; Power flow; Schedules; State-of-the-art reviews; Switching
• ISSN: 0093-9994; 1939-9367
• DOI: 10.1109/TIA.2019.2912133

Microgrid technology has found applications in various areas including institutional campuses, military bases, and remote islands. Many research efforts focus on the development of the microgrid steady-state energy management system (EMS) that can provide the day-ahead schedule or the multi-interval economic dispatch (ED) for distributed energy resources (DERs). This study advances the state-of-the-art microgrid EMS technique by developing a novel EMS approach to achieve a flexible time frame (FTF) DER schedule combined with a single time interval optimal power flow (OPF)-based ED. The FTF DER schedule enables the microgrid to fully utilize the latest updated renewable and load forecasts, and the OPF-based ED integrates realistic microgrid operating constraints in the real-time control. In addition, a mode switching control function is included to re-dispatch DERs in the microgrid for the planned microgrid switching from grid-connected mode to island mode. The feasibility and effectiveness of the proposed microgrid EMS technology are tested and demonstrated using modified IEEE 34-node and 123-node systems.