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- W4387431645 abstract "Volt/Var control (VVC) is a crucial function in power distribution systems to minimize power loss and maintain voltages within allowable limits. However, incomplete and inaccurate information about the distribution network makes model-based VVC methods difficult to implement in practice. In this paper, we propose a novel multi-agent graph-based deep reinforcement learning (DRL) algorithm named MASAC-HGRN to address the VVC problem under partial observation constraints. Our proposed algorithm divides the power distribution system into several regions, each region treated as an agent. Unlike traditional model-based or global-observation-based DRL methods, our proposed method leverages a practical decentralized training and decentralized execution (DTDE) paradigm to address the partial observation constraints. The well-trained agents gather information only from their interconnected neighbors and realize decentralized local control. Numerical studies with IEEE 33-bus and 123-bus distribution test feeders demonstrate that our proposed MASAC-HGRN algorithm outperforms the state-of-art RL algorithms and traditional model-based approaches in terms of VVC performance. Moreover, the DTDE framework exhibits flexibility and robustness in extensive robustness experiments." @default.
- W4387431645 created "2023-10-08" @default.
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- W4387431645 date "2024-01-01" @default.
- W4387431645 modified "2023-10-09" @default.
- W4387431645 title "Multi-agent graph reinforcement learning for decentralized Volt-VAR control in power distribution systems" @default.
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- W4387431645 doi "https://doi.org/10.1016/j.ijepes.2023.109531" @default.
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