Overview of Power Management Strategies of Hybrid AC/DC Microgrid

Today, conventional power systems are evolving to modern smart grids, where interconnected microgrids may dominate the distribution system with high penetration of renewable energy and energy storage systems. The hybrid ac/dc systems with dc and ac sources/loads are considered to be the most possibl...

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Bibliographic Details
Published in:IEEE transactions on power electronics 2015-12, Vol.30 (12), p.7072-7089
Main Authors: Nejabatkhah, Farzam, Yun Wei Li
Format: Article
Language:English
Subjects:
AC-coupled hybrid microgrid
AC-DC-coupled hybrid microgrid
Batteries
Control strategies
DC-coupled hybrid microgrid
Electric currents
Electricity distribution
Energy management
Frequency control
Hybrid AC/DC microgrid
Hybrid power systems
Microgrids
Power generation
Power management schemes
Power supply
Voltage control
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Summary:Today, conventional power systems are evolving to modern smart grids, where interconnected microgrids may dominate the distribution system with high penetration of renewable energy and energy storage systems. The hybrid ac/dc systems with dc and ac sources/loads are considered to be the most possible future distribution or even transmission structures. For such hybrid ac/dc microgrids, power management strategies are one of the most critical operation aspects. This paper presents an overview of power management strategies for a hybrid ac/dc microgrid system, which includes different system structures (ac-coupled, dc-coupled, and ac-dc-coupled hybrid microgrids), different operation modes, a thorough study of various power management and control schemes in both steady state and transient conditions, and examples of power management and control strategies. Finally, discussion and recommendations of power management strategies for the further research are presented.
ISSN:0885-8993
1941-0107
DOI:10.1109/TPEL.2014.2384999