Interior-point policy optimization based multi-agent deep reinforcement learning method for secure home energy management under various uncertainties

Yiwen Zhang, Rui Lin, Zhen Mei, Minghao Lyu, Huaiguang Jiang, Ying Xue, Jun Zhang and David Wenzhong Gao

Applied Energy, 2024, vol. 376, issue PA, No S0306261924015381

Abstract: Improving the efficiency of home energy management (HEM) is of great significance in reducing resource waste and prompting renewable energy consumption. With the development of advanced HEM systems and internet-of-things technology, more residents are willing to participate in the electricity market through a demand response mechanism, which can not only reduce the electricity bill but also stabilize the operation of the main grid through peak shaving and valley filling. However, the uncertainties from household appliance parameters, user behaviors, penetrated renewable energy, and electricity prices render the HEM problem a non-trivial task. Although previous deep reinforcement learning (DRL) methods have no requirement for system dynamics due to their model-free and data-driven merits, the unrestricted action space may violate the physical constraints of various devices, and few works have concentrated on this area before. To solve the above challenges, this paper proposes a novel interior-point policy optimization-based multi-agent DRL algorithm to optimize the home energy scheduling procedure while guaranteeing safety during its operation. Besides, a time-series prediction model based on a non-stationary Transformer neural network is proposed to predict the future trend of solar generation and electricity price, which can provide the agents with abundant information to make better decisions. The superior performance of our proposed predictive-control coupled method is demonstrated through extensive numerical experiments, which achieves more precise prediction results, near-zero constraint violations, and better trade-offs between cost and safety than several benchmark methods.

Keywords: Home energy management; Safe deep reinforcement learning; Multi-agent system; Demand response; Deep neural network; Uncertainty (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.apenergy.2024.124155

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