Pub Date : 2025-09-09DOI: 10.1016/j.egyai.2025.100617
Vahid M. Nik
Increasing the stability of energy management systems is crucial, especially when facing extreme weather events. A common approach to prevent sudden oscillations is the implementation of predictive models; however, this often requires more complex models and greater computational power. In this work, weather forecasts are integrated into an approach based on Adaptive Reinforcement Learning for Energy Management (ARLEM). Since ARLEM is an online model-free reward-based RL method, it does not need any form of (predictive) modelling and weather forecasts serve as an additional source of information about the agent’s environment. The impacts of incorporating weather forecasts into ARLEM are investigated for a typical urban neighborhood in Stockholm during a winter with two cold waves and considering 17 future climate scenarios for the period of 2040–2069. Multiple adaptive policy schemes are assessed considering four forecast horizons of 3, 6, 12, and 24 h. Results show that integrating weather forecasts into decision-making can significantly reduce fluctuations in the control system, leading to more stable energy management. Moreover, it enhances energy efficiency by reducing both average and peak demands, particularly during extreme weather events. Overall, this contributes to improving the climate resilience of energy systems.
{"title":"Enhancing energy control stability under extreme conditions by integrating weather forecasts into ARLEM","authors":"Vahid M. Nik","doi":"10.1016/j.egyai.2025.100617","DOIUrl":"10.1016/j.egyai.2025.100617","url":null,"abstract":"<div><div>Increasing the stability of energy management systems is crucial, especially when facing extreme weather events. A common approach to prevent sudden oscillations is the implementation of predictive models; however, this often requires more complex models and greater computational power. In this work, weather forecasts are integrated into an approach based on Adaptive Reinforcement Learning for Energy Management (ARLEM). Since ARLEM is an online model-free reward-based RL method, it does not need any form of (predictive) modelling and weather forecasts serve as an additional source of information about the agent’s environment. The impacts of incorporating weather forecasts into ARLEM are investigated for a typical urban neighborhood in Stockholm during a winter with two cold waves and considering 17 future climate scenarios for the period of 2040–2069. Multiple adaptive policy schemes are assessed considering four forecast horizons of 3, 6, 12, and 24 h. Results show that integrating weather forecasts into decision-making can significantly reduce fluctuations in the control system, leading to more stable energy management. Moreover, it enhances energy efficiency by reducing both average and peak demands, particularly during extreme weather events. Overall, this contributes to improving the climate resilience of energy systems.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100617"},"PeriodicalIF":9.6,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145060519","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-08DOI: 10.1016/j.egyai.2025.100616
Yuanjing Zhuo, Huan Long, Zhi Wu, Wei Gu
Distributed photovoltaic (PV) power forecasting in newly installed systems faces challenges due to inherent stochastic volatilities and limited historical data. This paper proposes a lightweight feature transfer learning (LFTL) method that enables rapid and accurate forecasting of new distributed PVs. Firstly, the raw fluctuating PV data are preprocessed through decomposition to separate low- and high-frequency components. These components are then multi-scale segmented to capture diverse temporal characteristics. Following feature compression and LSTM temporal modeling, the informative features from the source domain enable lightweight transfer. For the target domain, a channel-independent encoder is designed to prevent negative interactions between heterogeneous frequencies. The frequency-fused segment-independent decoder equipped with positional embeddings enables local temporal analysis and reduces error accumulation of multi-step forecasts. LFTL trains with a joint training strategy to avoid negative transfer caused by domain disparity. LFTL consistently outperforms state-of-the-art time-series forecast models while maintaining a relatively low computational overhead based on real-world distributed PV data.
{"title":"LFTL: Lightweight feature transfer learning with channel-independent LSTM for distributed PV forecasting","authors":"Yuanjing Zhuo, Huan Long, Zhi Wu, Wei Gu","doi":"10.1016/j.egyai.2025.100616","DOIUrl":"10.1016/j.egyai.2025.100616","url":null,"abstract":"<div><div>Distributed photovoltaic (PV) power forecasting in newly installed systems faces challenges due to inherent stochastic volatilities and limited historical data. This paper proposes a lightweight feature transfer learning (LFTL) method that enables rapid and accurate forecasting of new distributed PVs. Firstly, the raw fluctuating PV data are preprocessed through decomposition to separate low- and high-frequency components. These components are then multi-scale segmented to capture diverse temporal characteristics. Following feature compression and LSTM temporal modeling, the informative features from the source domain enable lightweight transfer. For the target domain, a channel-independent encoder is designed to prevent negative interactions between heterogeneous frequencies. The frequency-fused segment-independent decoder equipped with positional embeddings enables local temporal analysis and reduces error accumulation of multi-step forecasts. LFTL trains with a joint training strategy to avoid negative transfer caused by domain disparity. LFTL consistently outperforms state-of-the-art time-series forecast models while maintaining a relatively low computational overhead based on real-world distributed PV data.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100616"},"PeriodicalIF":9.6,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096105","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-03DOI: 10.1016/j.egyai.2025.100612
Zhuo Liu , Bumin Meng , Rui Pan , Juan Zhou
Retired batteries for secondary use offer significant economic benefits and environmental value. Accurate sorting of retired batteries with diverse characteristics can further enhance their application efficiency. However, in practical sorting processes, the presence of redundant features, noise interference, and distribution discrepancies in the data severely limits the accuracy of sorting outcomes. To address these challenges, this paper proposes an enhanced retired battery sorting strategy that incorporates feature selection and a clustering algorithm, aiming to optimize the sorting process from the perspective of feature data. To address feature redundancy and high dimensionality issues, this paper proposes an entropy screening method. The Local Outlier Factor algorithm is used to remove anomalous samples. Subsequently, an ensemble clustering approach is developed based on K-means, Density-Based Spatial Clustering of Applications with Noise, Gaussian Mixture Model, and Spectral clustering, to handle diverse data distributions. The proposed method is validated on 100 retired batteries as well as the large-scale dataset. Additionally, its strong sorting capability and engineering applicability are further demonstrated through carefully designed aging-controlled experiments.
{"title":"An enhanced sorting framework for retired batteries based on multi-dimensional features and an integrated clustering approach","authors":"Zhuo Liu , Bumin Meng , Rui Pan , Juan Zhou","doi":"10.1016/j.egyai.2025.100612","DOIUrl":"10.1016/j.egyai.2025.100612","url":null,"abstract":"<div><div>Retired batteries for secondary use offer significant economic benefits and environmental value. Accurate sorting of retired batteries with diverse characteristics can further enhance their application efficiency. However, in practical sorting processes, the presence of redundant features, noise interference, and distribution discrepancies in the data severely limits the accuracy of sorting outcomes. To address these challenges, this paper proposes an enhanced retired battery sorting strategy that incorporates feature selection and a clustering algorithm, aiming to optimize the sorting process from the perspective of feature data. To address feature redundancy and high dimensionality issues, this paper proposes an entropy screening method. The Local Outlier Factor algorithm is used to remove anomalous samples. Subsequently, an ensemble clustering approach is developed based on K-means, Density-Based Spatial Clustering of Applications with Noise, Gaussian Mixture Model, and Spectral clustering, to handle diverse data distributions. The proposed method is validated on 100 retired batteries as well as the large-scale dataset. Additionally, its strong sorting capability and engineering applicability are further demonstrated through carefully designed aging-controlled experiments.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100612"},"PeriodicalIF":9.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-03DOI: 10.1016/j.egyai.2025.100603
Sai Sushanth Varma Kalidindi , Hadi Banaee , Hans Karlsson , Amy Loutfi
As district heating networks evolve to meet climate-neutral objectives, optimizing their control under heterogeneous building characteristics and dynamic environmental conditions remains a significant challenge. Traditional control strategies often lack the adaptability necessary to account for building-specific dynamics and to ensure real-time adherence to operational safety constraints. In this work, we present an integrated machine learning-based framework that combines an adaptive context-aware transformer model with deep reinforcement learning to address these limitations. The proposed approach introduces an adaptive context-aware transformer as a predictive environment within a Deep Q-Network (DQN) framework, enabling data-driven, building-specific control of district heating systems. Utilizing real-world data from 148 residential buildings across Sweden and Finland, the model incorporates contextual embeddings and temporal features to predict indoor temperature trajectories with high accuracy, achieving root mean square error values between 0.18–0.24 °C for Swedish buildings and 0.26–0.32 °C for Finnish buildings. The DQN agent leverages these predictions to optimize heating control while ensuring compliance with operational safety limits and preserving occupant comfort. Experimental results demonstrate significant energy savings, with mid-rise buildings achieving up to 14.85% reduction in energy consumption, and peak seasonal savings exceeding 20% during spring months. This integrated approach illustrates the potential for substantial energy optimization and reliable indoor climate management in future district heating networks.
{"title":"District heating optimization in residential buildings using reinforcement learning with adaptive context-aware predictive environment","authors":"Sai Sushanth Varma Kalidindi , Hadi Banaee , Hans Karlsson , Amy Loutfi","doi":"10.1016/j.egyai.2025.100603","DOIUrl":"10.1016/j.egyai.2025.100603","url":null,"abstract":"<div><div>As district heating networks evolve to meet climate-neutral objectives, optimizing their control under heterogeneous building characteristics and dynamic environmental conditions remains a significant challenge. Traditional control strategies often lack the adaptability necessary to account for building-specific dynamics and to ensure real-time adherence to operational safety constraints. In this work, we present an integrated machine learning-based framework that combines an adaptive context-aware transformer model with deep reinforcement learning to address these limitations. The proposed approach introduces an adaptive context-aware transformer as a predictive environment within a Deep Q-Network (DQN) framework, enabling data-driven, building-specific control of district heating systems. Utilizing real-world data from 148 residential buildings across Sweden and Finland, the model incorporates contextual embeddings and temporal features to predict indoor temperature trajectories with high accuracy, achieving root mean square error values between 0.18–0.24 °C for Swedish buildings and 0.26–0.32 °C for Finnish buildings. The DQN agent leverages these predictions to optimize heating control while ensuring compliance with operational safety limits and preserving occupant comfort. Experimental results demonstrate significant energy savings, with mid-rise buildings achieving up to 14.85% reduction in energy consumption, and peak seasonal savings exceeding 20% during spring months. This integrated approach illustrates the potential for substantial energy optimization and reliable indoor climate management in future district heating networks.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100603"},"PeriodicalIF":9.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145096079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-03DOI: 10.1016/j.egyai.2025.100615
Qianqian Li , Shuaibin Wan , Haoming Li , Jishan He , Dongxu Ji
Geothermal heat flow (GHF) is a crucial metric in the assessment of geothermal reservoirs. To circumvent the high cost of conventional GHF measurement techniques, there is a growing interest in leveraging machine learning models to predict GHF based on geological datasets imputed by the Kriging method. However, the spatial distribution of some geological features exhibits complex data patterns and missing values, justifying the need for a more accurate and efficient alternative to the conventional Kriging method. In this study, we present a novel machine learning-based framework for predicting GHF based on sparse geological data. Specifically, a machine learning model (here MissForest) is employed to impute the missing values of geological data. The MissForest model, by leveraging spatial correlations among geological parameters (e.g., upper crust thickness, Moho depth, and rock type), achieves superior imputation accuracy (R2 = 0.90 at 20% missing rate) over the conventional Kriging method (R2 = 0.84). Based on the imputed datasets, machine learning regression models are trained to capture the mapping of geological features to GHF. Our best model achieves a low error of 10.18 % for predicting GHF across various regions, surpassing the previous studies. Furthermore, the machine learning-based framework successfully predicts the GHF globally, shedding new light on the distribution patterns of geothermal resources and their exploitation potential worldwide.
{"title":"Prediction of geothermal heat flow for sustainable energy applications with sparse geological data using machine learning","authors":"Qianqian Li , Shuaibin Wan , Haoming Li , Jishan He , Dongxu Ji","doi":"10.1016/j.egyai.2025.100615","DOIUrl":"10.1016/j.egyai.2025.100615","url":null,"abstract":"<div><div>Geothermal heat flow (GHF) is a crucial metric in the assessment of geothermal reservoirs. To circumvent the high cost of conventional GHF measurement techniques, there is a growing interest in leveraging machine learning models to predict GHF based on geological datasets imputed by the Kriging method. However, the spatial distribution of some geological features exhibits complex data patterns and missing values, justifying the need for a more accurate and efficient alternative to the conventional Kriging method. In this study, we present a novel machine learning-based framework for predicting GHF based on sparse geological data. Specifically, a machine learning model (here MissForest) is employed to impute the missing values of geological data. The MissForest model, by leveraging spatial correlations among geological parameters (e.g., upper crust thickness, Moho depth, and rock type), achieves superior imputation accuracy (R<sup>2</sup> = 0.90 at 20% missing rate) over the conventional Kriging method (R<sup>2</sup> = 0.84). Based on the imputed datasets, machine learning regression models are trained to capture the mapping of geological features to GHF. Our best model achieves a low error of 10.18 % for predicting GHF across various regions, surpassing the previous studies. Furthermore, the machine learning-based framework successfully predicts the GHF globally, shedding new light on the distribution patterns of geothermal resources and their exploitation potential worldwide.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100615"},"PeriodicalIF":9.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010677","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-02DOI: 10.1016/j.egyai.2025.100606
Qing Wang , Lizhen Wu , Qiang Zheng , Liang An
As a key pathway for green hydrogen production, water electrolysis is expected to play a central role in the future energy landscape. However, its large-scale deployment is hindered by challenges related to cost, performance, and durability. The emergence of artificial intelligence (AI) has transformed this field by offering powerful and efficient tools for the design and optimization of electrocatalysts. This review outlines an AI-driven multiscale design framework, highlighting its role at the microscopic scale for identifying atomic-level active sites and key descriptors, at the mesoscopic scale for structural and morphological characterization, and at the macroscopic scale for multi-objective optimization and intelligent control. This multiscale framework demonstrates the potential of AI to accelerate the development of next-generation electrocatalysts. In addition, the integration of generative AI and automated experimental techniques is highlighted as promising strategies to further enhance electrocatalyst discovery and promote the practical implementation of water electrolysis technologies.
{"title":"Opportunities and perspectives of artificial intelligence in electrocatalysts design for water electrolysis","authors":"Qing Wang , Lizhen Wu , Qiang Zheng , Liang An","doi":"10.1016/j.egyai.2025.100606","DOIUrl":"10.1016/j.egyai.2025.100606","url":null,"abstract":"<div><div>As a key pathway for green hydrogen production, water electrolysis is expected to play a central role in the future energy landscape. However, its large-scale deployment is hindered by challenges related to cost, performance, and durability. The emergence of artificial intelligence (AI) has transformed this field by offering powerful and efficient tools for the design and optimization of electrocatalysts. This review outlines an AI-driven multiscale design framework, highlighting its role at the microscopic scale for identifying atomic-level active sites and key descriptors, at the mesoscopic scale for structural and morphological characterization, and at the macroscopic scale for multi-objective optimization and intelligent control. This multiscale framework demonstrates the potential of AI to accelerate the development of next-generation electrocatalysts. In addition, the integration of generative AI and automated experimental techniques is highlighted as promising strategies to further enhance electrocatalyst discovery and promote the practical implementation of water electrolysis technologies.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100606"},"PeriodicalIF":9.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-02DOI: 10.1016/j.egyai.2025.100610
Xiaojie Lin , Zheng Luo , Liuliu Du-Ikonen , Xueru Lin , Yihui Mao , Haoyu Jiang , Shuai Wang , Chongshuo Yuan , Wei Zhong , Zitao Yu
Promoting low-carbon energy systems as a centerpiece of global sustainable development goals is essential. As part of this low-carbon transition, smart energy systems have been an active area of research and education, where artificial intelligence (AI) intersects with energy science. It is an emerging area where research and education face new challenges as new knowledge keeps coming in. During this process, generative artificial intelligence (GAI) plays a critical role in education and research activities. However, GAI's impact on smart energy systems research and education is less discussed. Especially, its impact on education is rarely discussed when compared to research. GAI reshapes both the research process and the roles of teachers and students in the course. This perspective offers insights into the ongoing research and education paradigm shifts observed in the smart energy system. This perspective synthesizes existing studies on "GAI for Science" and "GAI for Education" practices in the field of smart energy systems. In research, the impact of GAI is discussed from both macro and micro levels. In education, this perspective examines how a GAI-driven teaching approach addresses the challenges of teaching smart energy systems compared to the traditional approach. This perspective could benefit the discussion of GAI-reshaped research and education in energy science.
{"title":"Generative artificial intelligence: Pioneering a new paradigm for research and education in smart energy systems","authors":"Xiaojie Lin , Zheng Luo , Liuliu Du-Ikonen , Xueru Lin , Yihui Mao , Haoyu Jiang , Shuai Wang , Chongshuo Yuan , Wei Zhong , Zitao Yu","doi":"10.1016/j.egyai.2025.100610","DOIUrl":"10.1016/j.egyai.2025.100610","url":null,"abstract":"<div><div>Promoting low-carbon energy systems as a centerpiece of global sustainable development goals is essential. As part of this low-carbon transition, smart energy systems have been an active area of research and education, where artificial intelligence (AI) intersects with energy science. It is an emerging area where research and education face new challenges as new knowledge keeps coming in. During this process, generative artificial intelligence (GAI) plays a critical role in education and research activities. However, GAI's impact on smart energy systems research and education is less discussed. Especially, its impact on education is rarely discussed when compared to research. GAI reshapes both the research process and the roles of teachers and students in the course. This perspective offers insights into the ongoing research and education paradigm shifts observed in the smart energy system. This perspective synthesizes existing studies on \"GAI for Science\" and \"GAI for Education\" practices in the field of smart energy systems. In research, the impact of GAI is discussed from both macro and micro levels. In education, this perspective examines how a GAI-driven teaching approach addresses the challenges of teaching smart energy systems compared to the traditional approach. This perspective could benefit the discussion of GAI-reshaped research and education in energy science.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100610"},"PeriodicalIF":9.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-09-02DOI: 10.1016/j.egyai.2025.100611
Wenjun Guo , Renkang Wang , Yu Qiu , Linhong Wu , Kai Li , Hao Tang
The anode pressure control in proton exchange membrane fuel cells (PEMFCs) significantly influences the stable operation of the hydrogen supply system and the internal gas circulation within the fuel cell. An efficient anode pressure control strategy is imperative for enhancing the overall system efficiency and mitigating lifespan degradation. Effective anode pressure control can prevent hydrogen starvation and instability in output performance under rapid load changes and purge disturbances. Fuzzy control has been extensively employed in anode pressure control studies. However, creating fuzzy rules in the control parameter’s tuning process in existing studies is predominantly dependent on expert knowledge, resulting in concerns about control accuracy. This study investigates the potential of employing the whale optimization algorithm to optimize the selection of fuzzy parameters. We first developed a control-oriented model to address the nonlinearity, coupling, and uncertainty in the hydrogen supply system. Then, based on the model and considering load variations and purge disturbances, we integrated feedforward compensation and fuzzy control into the conventional Proportional-Integral (PI) controller to suppress input disturbances, enhance control accuracy, and reduce the pressure response lag. Finally, an innovative fuzzy PI controller with the whale optimization algorithm is proposed to optimize the fuzzy parameter selection, thereby achieving precise anode pressure control. Simulation tests demonstrate that the whale-optimization-based fuzzy PI control (WFLPIF) reduces a root mean square error by 14.3 % (0.636 vs. 0.742) and a mean absolute percentage error by 28.8 % (0.037 vs. 0.052) compared to conventional PI control, while also outperforming feedforward-compensated fuzzy PI control (FLPIF) by 9.5 % in RMSE and 17.8 % in MAPE. This study substantiates the efficacy of the whale optimization algorithm in addressing the anode pressure stability control challenge of fuel cell hydrogen supply systems.
质子交换膜燃料电池(pemfc)的阳极压力控制对供氢系统的稳定运行和燃料电池内部气体循环有着重要的影响。有效的阳极压力控制策略对于提高系统整体效率和减少寿命退化是必不可少的。有效的阳极压力控制可以防止在负载快速变化和吹扫干扰下的氢饥饿和输出性能不稳定。模糊控制在阳极压力控制研究中得到了广泛应用。然而,在现有的研究中,在控制参数整定过程中模糊规则的创建主要依赖于专家知识,导致对控制精度的担忧。本研究探讨了采用鲸鱼优化算法优化模糊参数选择的潜力。我们首先开发了一个面向控制的模型来解决氢供应系统中的非线性、耦合和不确定性。然后,在此基础上,考虑负载变化和吹扫干扰,将前馈补偿和模糊控制集成到传统的比例积分(PI)控制器中,以抑制输入干扰,提高控制精度,减小压力响应滞后。最后,提出了一种创新的模糊PI控制器,采用鲸鱼优化算法对模糊参数选择进行优化,从而实现精确的阳极压力控制。仿真测试表明,与传统PI控制相比,基于鲸鱼优化的模糊PI控制(WFLPIF)的均方根误差降低了14.3% (0.636 vs. 0.742),平均绝对百分比误差降低了28.8% (0.037 vs. 0.052),同时在RMSE和MAPE方面也优于前馈补偿模糊PI控制(FLPIF) 9.5%和17.8%。本研究证实了鲸鱼优化算法在解决燃料电池供氢系统阳极压力稳定性控制挑战方面的有效性。
{"title":"Whale algorithm optimized anode pressure controller for fuel cell systems in ejector recirculation mode","authors":"Wenjun Guo , Renkang Wang , Yu Qiu , Linhong Wu , Kai Li , Hao Tang","doi":"10.1016/j.egyai.2025.100611","DOIUrl":"10.1016/j.egyai.2025.100611","url":null,"abstract":"<div><div>The anode pressure control in proton exchange membrane fuel cells (PEMFCs) significantly influences the stable operation of the hydrogen supply system and the internal gas circulation within the fuel cell. An efficient anode pressure control strategy is imperative for enhancing the overall system efficiency and mitigating lifespan degradation. Effective anode pressure control can prevent hydrogen starvation and instability in output performance under rapid load changes and purge disturbances. Fuzzy control has been extensively employed in anode pressure control studies. However, creating fuzzy rules in the control parameter’s tuning process in existing studies is predominantly dependent on expert knowledge, resulting in concerns about control accuracy. This study investigates the potential of employing the whale optimization algorithm to optimize the selection of fuzzy parameters. We first developed a control-oriented model to address the nonlinearity, coupling, and uncertainty in the hydrogen supply system. Then, based on the model and considering load variations and purge disturbances, we integrated feedforward compensation and fuzzy control into the conventional Proportional-Integral (PI) controller to suppress input disturbances, enhance control accuracy, and reduce the pressure response lag. Finally, an innovative fuzzy PI controller with the whale optimization algorithm is proposed to optimize the fuzzy parameter selection, thereby achieving precise anode pressure control. Simulation tests demonstrate that the whale-optimization-based fuzzy PI control (WFLPIF) reduces a root mean square error by 14.3 % (0.636 vs. 0.742) and a mean absolute percentage error by 28.8 % (0.037 vs. 0.052) compared to conventional PI control, while also outperforming feedforward-compensated fuzzy PI control (FLPIF) by 9.5 % in RMSE and 17.8 % in MAPE. This study substantiates the efficacy of the whale optimization algorithm in addressing the anode pressure stability control challenge of fuel cell hydrogen supply systems.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100611"},"PeriodicalIF":9.6,"publicationDate":"2025-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145007631","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-28DOI: 10.1016/j.egyai.2025.100564
Adrien Pavão , Antoine Marot , Jules Sintes , Viktor Eriksson Möllerstedt , Laure Crochepierre , Karim Chaouache , Benjamin Donnot , Van Tuan Dang , Isabelle Guyon
Achieving carbon neutrality by 2050 will require power-grid operators to absorb unprecedented volumes of variable solar and wind generation while maintaining reliability. To tackle this systems-level bottleneck, Réseau de Transport d’Électricité (RTE) and the research community launched Learn To Run A Power Network (L2RPN), a crowd-sourced competition aiming to accelerate the integration of intermittent renewables into power-grid operations. L2RPN is based on 16 years of weekly scenarios (832 in total) on a 118-node grid under realistic constraints, and casts real-time grid operation as a Markov-Decision-Process. The six participating teams tackled the challenge by developing autonomous agents with various strategies blending heuristics, optimization, data scaling, supervised learning, and reinforcement learning. We provide a detailed overview of all six participants’ performance under the competition’s demanding design. In addition, we present an in-depth analysis of the winning solution – made publicly available – which achieves consistent decision making across scenarios, executes real-time multimodal actions in under five seconds, and performs efficient topology control via action-space reduction and a neural policy that predicts useful grid actions with over 80% accuracy. In parallel, we trained a neural alert module on 315,000 samples derived from top agents, achieving 93.9% recall in flagging dangerous states and allowing agents to predict future failure. Finally, this work not only demonstrates AI’s promise and current limits in real-time grid management but also lays a transparent foundation for more robust, trustworthy systems in the energy transition.
{"title":"AI challenge for safe and low carbon power grid operation","authors":"Adrien Pavão , Antoine Marot , Jules Sintes , Viktor Eriksson Möllerstedt , Laure Crochepierre , Karim Chaouache , Benjamin Donnot , Van Tuan Dang , Isabelle Guyon","doi":"10.1016/j.egyai.2025.100564","DOIUrl":"10.1016/j.egyai.2025.100564","url":null,"abstract":"<div><div>Achieving carbon neutrality by 2050 will require power-grid operators to absorb unprecedented volumes of variable solar and wind generation while maintaining reliability. To tackle this systems-level bottleneck, Réseau de Transport d’Électricité (RTE) and the research community launched Learn To Run A Power Network (L2RPN), a crowd-sourced competition aiming to accelerate the integration of intermittent renewables into power-grid operations. L2RPN is based on 16 years of weekly scenarios (832 in total) on a 118-node grid under realistic constraints, and casts real-time grid operation as a Markov-Decision-Process. The six participating teams tackled the challenge by developing autonomous agents with various strategies blending heuristics, optimization, data scaling, supervised learning, and reinforcement learning. We provide a detailed overview of all six participants’ performance under the competition’s demanding design. In addition, we present an in-depth analysis of the winning solution – made publicly available – which achieves consistent decision making across scenarios, executes real-time multimodal actions in under five seconds, and performs efficient topology control via action-space reduction and a neural policy that predicts useful grid actions with over 80% accuracy. In parallel, we trained a neural alert module on 315,000 samples derived from top agents, achieving 93.9% recall in flagging dangerous states and allowing agents to predict future failure. Finally, this work not only demonstrates AI’s promise and current limits in real-time grid management but also lays a transparent foundation for more robust, trustworthy systems in the energy transition.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100564"},"PeriodicalIF":9.6,"publicationDate":"2025-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988855","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2025-08-27DOI: 10.1016/j.egyai.2025.100599
Yuemeng Zhang , Longqin Guo , Zeqian Chen , Hongtao Yan , Le Liang , Chunjing Lin
Accurate prediction of electric vehicle (EV) charging duration is critical for improving user satisfaction and enabling efficient real-time charging management. This paper proposes a dynamic charging duration prediction framework for EVs, composed of four coordinated modules: data preprocessing, charging pattern classification, static prediction, and dynamic bias correction. First, raw charging data collected from the Battery Management System (BMS) is cleaned and normalized to address missing and abnormal values. An enhanced convolutional autoencoder (EV-CAE) is then employed to extract multi-scale temporal features, while K-Means clustering is used to identify representative charging behavior patterns. Based on the classified patterns, the static prediction module estimates the current charging duration by leveraging historical data and pattern labels. To enhance adaptability under dynamic conditions, a bias correction mechanism is designed, integrating linear, logarithmic, proportional, and deep learning-based strategies to adjust the prediction results in real time. Experimental results on real-world EV datasets demonstrate that the proposed framework significantly improves prediction accuracy. In particular, the dynamic correction module increases the coefficient of determination (R²) from 0.948 to 0.960, while maintaining robust performance under fluctuating charging behavior and low-temperature conditions. These results validate the practical applicability and engineering potential of the proposed method for real-time charging duration estimation in intelligent EV charging systems.
{"title":"A novel framework for vehicle charging pattern recognition and charging duration prediction based on EA-CAE and K-means clustering","authors":"Yuemeng Zhang , Longqin Guo , Zeqian Chen , Hongtao Yan , Le Liang , Chunjing Lin","doi":"10.1016/j.egyai.2025.100599","DOIUrl":"10.1016/j.egyai.2025.100599","url":null,"abstract":"<div><div>Accurate prediction of electric vehicle (EV) charging duration is critical for improving user satisfaction and enabling efficient real-time charging management. This paper proposes a dynamic charging duration prediction framework for EVs, composed of four coordinated modules: data preprocessing, charging pattern classification, static prediction, and dynamic bias correction. First, raw charging data collected from the Battery Management System (BMS) is cleaned and normalized to address missing and abnormal values. An enhanced convolutional autoencoder (EV-CAE) is then employed to extract multi-scale temporal features, while K-Means clustering is used to identify representative charging behavior patterns. Based on the classified patterns, the static prediction module estimates the current charging duration by leveraging historical data and pattern labels. To enhance adaptability under dynamic conditions, a bias correction mechanism is designed, integrating linear, logarithmic, proportional, and deep learning-based strategies to adjust the prediction results in real time. Experimental results on real-world EV datasets demonstrate that the proposed framework significantly improves prediction accuracy. In particular, the dynamic correction module increases the coefficient of determination (R²) from 0.948 to 0.960, while maintaining robust performance under fluctuating charging behavior and low-temperature conditions. These results validate the practical applicability and engineering potential of the proposed method for real-time charging duration estimation in intelligent EV charging systems.</div></div>","PeriodicalId":34138,"journal":{"name":"Energy and AI","volume":"22 ","pages":"Article 100599"},"PeriodicalIF":9.6,"publicationDate":"2025-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145045868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}