Challenges and opportunities coexist in microgrids as a result of emerging large-scale distributed energy resources (DERs) and advanced control techniques. In this paper, a comprehensive review of microgrid control is presented with its fusion of model-free reinforcement learning (MFRL). A high-level research map of microgrid control is developed from six distinct perspectives, followed by bottom-level modularized control blocks illustrating the configurations of grid-following (GFL) and grid-forming (GFM) inverters. Then, mainstream MFRL algorithms are introduced with an explanation of how MFRL can be integrated into the existing control framework. Next, the application guideline of MFRL is summarized with a discussion of three fusing approaches, i.e., model identification and parameter tuning, supplementary signal generation, and controller substitution, with the existing control framework. Finally, the fundamental challenges associated with adopting MFRL in microgrid control and corresponding insights for addressing these concerns are fully discussed.
B. She et al., "Fusion Of Microgrid Control With Model-Free Reinforcement Learning: Review And Vision," IEEE Transactions on Smart Grid, vol. 14, no. 4, pp. 3232 - 3245, Institute of Electrical and Electronics Engineers, Jul 2023.
The definitive version is available at https://doi.org/10.1109/TSG.2022.3222323
Electrical and Computer Engineering
Keywords and Phrases
data-driven control; grid-following and grid-forming inverters; Microgrid control; modelfree reinforcement learning; review and vision
International Standard Serial Number (ISSN)
Article - Journal
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01 Jul 2023