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A deep reinforcement learning-based charging scheduling approach with augmented Lagrangian for electric vehicles

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  • Chen, Guibin
  • Yang, Lun
  • Cao, Xiaoyu

Abstract

The adoption of electric vehicles (EVs) is increasingly recognized as a promising solution to decarbonization, thereby large scales of EVs are integrated into transportation and power systems in recent years. The transportation and power systems' operation states largely influence EVs' patterns, introducing uncertainties into EVs' driving patterns and energy demand. Such uncertainties make it a challenge to optimize the operations of charging stations, which provide both charging and electric grid services such as demand responses. To handle this dilemma, this paper models the chargers' operation decisions as a constrained Markov decision process (CMDP). By synergistically combining the augmented Lagrangian method and soft actor-critic algorithm, a novel safe off-policy reinforcement learning (RL) approach is proposed in this paper to solve the CMDP. The actor-network is updated in a policy gradient manner with the Lagrangian value function. A double-critics network is adopted to estimate the action-value function to avoid overestimation bias synchronously. The proposed algorithm does not require a strong convexity guarantee of examined problems and is sample efficient. Comprehensive numerical experiments with real-world electricity prices demonstrate that our proposed algorithm can achieve high solution optimality and constraint compliance.

Suggested Citation

  • Chen, Guibin & Yang, Lun & Cao, Xiaoyu, 2025. "A deep reinforcement learning-based charging scheduling approach with augmented Lagrangian for electric vehicles," Applied Energy, Elsevier, vol. 378(PA).
  • Handle: RePEc:eee:appene:v:378:y:2025:i:pa:s0306261924020890
    DOI: 10.1016/j.apenergy.2024.124706
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    References listed on IDEAS

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    1. Dorokhova, Marina & Martinson, Yann & Ballif, Christophe & Wyrsch, Nicolas, 2021. "Deep reinforcement learning control of electric vehicle charging in the presence of photovoltaic generation," Applied Energy, Elsevier, vol. 301(C).
    2. Tuchnitz, Felix & Ebell, Niklas & Schlund, Jonas & Pruckner, Marco, 2021. "Development and Evaluation of a Smart Charging Strategy for an Electric Vehicle Fleet Based on Reinforcement Learning," Applied Energy, Elsevier, vol. 285(C).
    3. Park, Keonwoo & Moon, Ilkyeong, 2022. "Multi-agent deep reinforcement learning approach for EV charging scheduling in a smart grid," Applied Energy, Elsevier, vol. 328(C).
    4. Zhao, Zhonghao & Lee, Carman K.M. & Ren, Jingzheng, 2024. "A two-level charging scheduling method for public electric vehicle charging stations considering heterogeneous demand and nonlinear charging profile," Applied Energy, Elsevier, vol. 355(C).
    5. Kreft, Markus & Brudermueller, Tobias & Fleisch, Elgar & Staake, Thorsten, 2024. "Predictability of electric vehicle charging: Explaining extensive user behavior-specific heterogeneity," Applied Energy, Elsevier, vol. 370(C).
    Full references (including those not matched with items on IDEAS)

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