Fault reconfiguration control strategy of islanded marine ranching power supply system based on deep reinforcement learning

•A fault reconstruction method is proposed for island-mode marine ranching power systems.•The method uses an improved Noisy-Dueling DQN for fast, autonomous power topology adjustment.•It accounts for both clean energy and complex marine environmental influences.•Noise networks improve exploration an...

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Veröffentlicht in:International journal of electrical power & energy systems Jg. 169; S. 110796
Hauptverfasser: Wang, Yichun, Zhang, Bo, Wang, Rongjie, Desong, Jiang, Cui, Yabo, Sun, Zhouyang, Liu, Hao
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Ltd 01.08.2025
Elsevier
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Abstract •A fault reconstruction method is proposed for island-mode marine ranching power systems.•The method uses an improved Noisy-Dueling DQN for fast, autonomous power topology adjustment.•It accounts for both clean energy and complex marine environmental influences.•Noise networks improve exploration and generalization in real-time reconstruction control.•Transfer learning accelerates model training by reusing knowledge from different operation states. When the islanded marine ranching power system fails, a rapid and accurate control strategy is crucial to maintain continuous power supply to critical loads and maximize the restoration of lost load power. To ensure the safe operation of the marine ranching power system, a fault reconstruction control method based on an improved Noisy-Dueling Deep Q-Network (Noisy-Dueling DQN) algorithm is proposed. Firstly, a reinforcement learning environment for reconstructing the marine ranching power system, including distributed generation (DG), is constructed. This enables the agent to continuously update model parameters through interaction with the environment in order to learn the optimal reconstruction strategy. To enhance convergence efficiency and generalization capability of the algorithm, noise networks are used to improve exploration ability of dueling DQN algorithm by implementing linear layers with learnable noise using an adaptive noise model. Finally, through analysis of fault reconstruction cases in different operating conditions of the marine ranching power system, it is demonstrated that this proposed algorithm can provide optimal reconstruction strategies within as short as 70 ms while achieving objectives such as maximum load recovery, minimum switching times, and minimum network losses. To illustrate, in the event of a fault occurring on lines b7, b18, and b25 at 8:00, resulting in the withdrawal of 58 kW of loads from operation, the proposed algorithm is configured to restore all the lost loads and minimise the network loss to 0.0112 kW.
AbstractList •A fault reconstruction method is proposed for island-mode marine ranching power systems.•The method uses an improved Noisy-Dueling DQN for fast, autonomous power topology adjustment.•It accounts for both clean energy and complex marine environmental influences.•Noise networks improve exploration and generalization in real-time reconstruction control.•Transfer learning accelerates model training by reusing knowledge from different operation states. When the islanded marine ranching power system fails, a rapid and accurate control strategy is crucial to maintain continuous power supply to critical loads and maximize the restoration of lost load power. To ensure the safe operation of the marine ranching power system, a fault reconstruction control method based on an improved Noisy-Dueling Deep Q-Network (Noisy-Dueling DQN) algorithm is proposed. Firstly, a reinforcement learning environment for reconstructing the marine ranching power system, including distributed generation (DG), is constructed. This enables the agent to continuously update model parameters through interaction with the environment in order to learn the optimal reconstruction strategy. To enhance convergence efficiency and generalization capability of the algorithm, noise networks are used to improve exploration ability of dueling DQN algorithm by implementing linear layers with learnable noise using an adaptive noise model. Finally, through analysis of fault reconstruction cases in different operating conditions of the marine ranching power system, it is demonstrated that this proposed algorithm can provide optimal reconstruction strategies within as short as 70 ms while achieving objectives such as maximum load recovery, minimum switching times, and minimum network losses. To illustrate, in the event of a fault occurring on lines b7, b18, and b25 at 8:00, resulting in the withdrawal of 58 kW of loads from operation, the proposed algorithm is configured to restore all the lost loads and minimise the network loss to 0.0112 kW.
When the islanded marine ranching power system fails, a rapid and accurate control strategy is crucial to maintain continuous power supply to critical loads and maximize the restoration of lost load power. To ensure the safe operation of the marine ranching power system, a fault reconstruction control method based on an improved Noisy-Dueling Deep Q-Network (Noisy-Dueling DQN) algorithm is proposed. Firstly, a reinforcement learning environment for reconstructing the marine ranching power system, including distributed generation (DG), is constructed. This enables the agent to continuously update model parameters through interaction with the environment in order to learn the optimal reconstruction strategy. To enhance convergence efficiency and generalization capability of the algorithm, noise networks are used to improve exploration ability of dueling DQN algorithm by implementing linear layers with learnable noise using an adaptive noise model. Finally, through analysis of fault reconstruction cases in different operating conditions of the marine ranching power system, it is demonstrated that this proposed algorithm can provide optimal reconstruction strategies within as short as 70 ms while achieving objectives such as maximum load recovery, minimum switching times, and minimum network losses. To illustrate, in the event of a fault occurring on lines b7, b18, and b25 at 8:00, resulting in the withdrawal of 58 kW of loads from operation, the proposed algorithm is configured to restore all the lost loads and minimise the network loss to 0.0112 kW.
ArticleNumber 110796
Author Liu, Hao
Wang, Rongjie
Cui, Yabo
Zhang, Bo
Sun, Zhouyang
Wang, Yichun
Desong, Jiang
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  givenname: Bo
  surname: Zhang
  fullname: Zhang, Bo
  organization: School of Marine Engineering, Jimei University, Xiamen 361021, China
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  fullname: Wang, Rongjie
  organization: School of Marine Engineering, Jimei University, Xiamen 361021, China
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  givenname: Hao
  surname: Liu
  fullname: Liu, Hao
  organization: School of Marine Engineering, Jimei University, Xiamen 361021, China
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Keywords Markov modeling
Island AC power supply system
Deep reinforcement learning
Fault recovery and reconstruction
Language English
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Snippet •A fault reconstruction method is proposed for island-mode marine ranching power systems.•The method uses an improved Noisy-Dueling DQN for fast, autonomous...
When the islanded marine ranching power system fails, a rapid and accurate control strategy is crucial to maintain continuous power supply to critical loads...
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StartPage 110796
SubjectTerms Deep reinforcement learning
Fault recovery and reconstruction
Island AC power supply system
Markov modeling
Title Fault reconfiguration control strategy of islanded marine ranching power supply system based on deep reinforcement learning
URI https://dx.doi.org/10.1016/j.ijepes.2025.110796
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