Sustainable Energy Technologies and Assessments最新文献_第2页

Fractionation of corncob powder to co-produce bioethanol and a lignin-based carbon electrode through a facile multi-step tandem technology 玉米芯粉末分馏与木质素基碳电极协同生产生物乙醇的简易多步串联技术

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-10-12 DOI: 10.1016/j.seta.2026.105480

Chencheng Dong, Tianci Liu, Saiying Li, Jinfan Wang, Haishan Du, Lizi Li, Shufang Wu, Weiqi Wei

{"title":"Fractionation of corncob powder to co-produce bioethanol and a lignin-based carbon electrode through a facile multi-step tandem technology","authors":"Chencheng Dong, Tianci Liu, Saiying Li, Jinfan Wang, Haishan Du, Lizi Li, Shufang Wu, Weiqi Wei","doi":"10.1016/j.seta.2026.105480","DOIUrl":"10.1016/j.seta.2026.105480","url":null,"abstract":"<div><div>As fossil resources continue to be consumed, the use of renewable biomass to produce various biofuels and materials has received wide attention in recent years. In this study, an efficient and gentle comprehensive strategy for corncob powder (CCP) valorization was proposed by coupling KOH and urea. The established strategy could selectively degrade lignin (∼80.4%) in CCP feedstock while maintaining high glucan (∼90.4%) and xylan (∼80.9%) retention, thereby leading to the pretreated solid having high-efficiency for sugar-to-ethanol conversion with a maximal ethanol yield of 73.4%. Besides, several nitrogen-doped lignin-based carbons (LC, about 80% carbons originates from lignin based on rough estimate without experimental verification) with multi-level pore structure, large BET area (∼1818.6 m<sup>2</sup>/g), high porosity (1.25 cm<sup>3</sup>/g), and numerous micropores/mesopores were in-situ prepared from pretreated liquid. Consequently, the prepared LC displayed a high specific capacitance (<em>C<sub>s</sub></em>) of 316F/g and excellent cycling stability, which can be attributed to the double-layer capacitor behavior and the co-existence of pseudocapacitance. The mass balance demonstrated that the exploited integrated strategy innovatively couples saccharification, fermentation and biochar production within a biorefinery system. It achieves both efficient sugar-to-ethanol conversion and direct in-situ valorization of degraded lignin into carbon electrodes from pretreated liquor without prior separation and purification.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105480"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205050","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Life-cycle assessment and techno-economic analysis of low-carbon methanol synthesized with industrial by-product hydrogen and carbon dioxide 工业副产氢气和二氧化碳合成低碳甲醇的生命周期评价及技术经济分析

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-10-12 DOI: 10.1016/j.seta.2026.105481

Jundi Wan, Juchao Zhang, Min Wang, Xin Sun

{"title":"Life-cycle assessment and techno-economic analysis of low-carbon methanol synthesized with industrial by-product hydrogen and carbon dioxide","authors":"Jundi Wan, Juchao Zhang, Min Wang, Xin Sun","doi":"10.1016/j.seta.2026.105481","DOIUrl":"10.1016/j.seta.2026.105481","url":null,"abstract":"<div><div>This paper presents a techno-economic analysis (TEA) and life-cycle assessment (LCA) of low-carbon methanol synthesized with various feedstocks, with emphasis on industrial by-product hydrogen and industrial off gas carbon dioxide. A quantitative relationship is established between production cost and greenhouse gas (GHG) emission intensity (EI) for the produced methanol, considering a variety of feedstock and energy sources. Coal- and natural gas-based methanol are used for the high carbon emission data points, and e-methanol synthesized with green hydrogen is used as the low carbon emission data point. The cases in between are obtained by Aspen Plus simulations with a two-step process for various H<sub>2</sub> and CO<sub>2</sub> sources. Five sources of H<sub>2</sub>, two sources of CO<sub>2</sub> and three synthesis energy sources are considered, with particular emphasis on industrial by-product gases. A GHG EI-dependent low carbon methanol pricing structure is next constructed by linearly interpolating between the current green e-methanol and gray methanol market prices, giving the consumer-end blending price needed to satisfy specific carbon emission requirements. The core objective is to quantitatively bridge the cost of e-methanol − from high-carbon, low-cost gray methanol to high-cost green methanol − and to establish a GHG EI-based market pricing structure to enable at-scale low carbon methanol production, thereby accelerating maritime transportation decarbonization.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105481"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of recycling and material reuse in NMC batteries NMC电池的回收和材料再利用评估

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-10-11 DOI: 10.1016/j.seta.2026.105459

Aleksandra Skalba, Angad Panesar

{"title":"Assessment of recycling and material reuse in NMC batteries","authors":"Aleksandra Skalba, Angad Panesar","doi":"10.1016/j.seta.2026.105459","DOIUrl":"10.1016/j.seta.2026.105459","url":null,"abstract":"<div><div>Sustainable recycling of nickel–manganese–cobalt (NMC) batteries depends on the interaction between cathode chemistry, recycling pathway and material-specific recovery. This study applies the Environmental Footprint (EF 3.0)/Product Environmental Footprint (PEF) framework across 16 impact categories to NMC 532, 622 and 811 using a fixed 40 kWh reference configuration, chemistry-specific material inventories, representative Ecoinvent v3.8 hydrometallurgical (HMP) and pyrometallurgical (PMP) treatment datasets, and literature-derived high- and low-recovery scenarios. Post-recycling burdens combine direct treatment impacts with the virgin-material top-up required after incomplete recovery under a 1:1 closed-loop substitution assumption. Moving from NMC 532 to 811 reduces the virgin-material single score by ∼ 18%, whereas the corresponding direct recycling change is ∼ 10%. At the treatment stage, HMP gives a 19% lower single-score PEF than PMP and is lower in 12 of 16 categories. Under high-recovery conditions, HMP gives the lowest post-recycling burden, ∼96–97% below the corresponding virgin-material baseline, while PMP gives 92–93% lower PEF. Recovery losses can reverse the route ranking; for HMP, incomplete graphite recovery is a dominant driver of residual virgin-material burden. The transferable finding is therefore a stage-dependent decision hierarchy: chemistry primarily governs primary-material burden, route selection governs treatment-stage trade-offs, and material-specific recovery can dominate the closed-loop outcome.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105459"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149202062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Alleviating multidimensional energy poverty through artificial intelligence: exploring the roles of green energy and green infrastructure innovation in Chinese cities 通过人工智能缓解多维能源贫困：探索绿色能源和绿色基础设施创新在中国城市中的作用

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-10-10 DOI: 10.1016/j.seta.2026.105473

Ying Zou, Xi Wen, Xinwei Zhang

{"title":"Alleviating multidimensional energy poverty through artificial intelligence: exploring the roles of green energy and green infrastructure innovation in Chinese cities","authors":"Ying Zou, Xi Wen, Xinwei Zhang","doi":"10.1016/j.seta.2026.105473","DOIUrl":"10.1016/j.seta.2026.105473","url":null,"abstract":"<div><div>Artificial intelligence is increasingly viewed as a general-purpose technology capable of supporting clean energy transitions and modern energy services. Drawing on general-purpose technology and complementary-assets perspectives, this study uses a balanced panel of 268 Chinese prefecture-level cities from 2014 to 2023 to examine the relationship between artificial intelligence innovation and urban multidimensional energy poverty. A city-level index captures energy-consumption level, energy structure, and energy infrastructure and utilization capacity. Artificial intelligence invention patent grants are significantly associated with lower multidimensional energy poverty across alternative specifications and identification checks. The instrumental-variable estimate is also negative and significant, although its larger magnitude may reflect a local effect and is interpreted separately from the baseline estimate. The negative association strengthens with long-term digital-economy policy attention and is weaker in urban agglomerations than elsewhere. Lagged mechanism analysis provides descriptive evidence consistent with green energy and green infrastructure innovation as two innovation-related pathways, rather than a formal decomposition of the total effect. These findings provide city-level evidence that artificial intelligence may support more equitable and sustainable urban energy transitions.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105473"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149161426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Weather-record adequacy for renewable portfolio and storage planning: A 25-year solar-wind assessment for Türkiye 可再生能源投资组合和存储规划的天气记录充分性：<s:1> rkiye的25年太阳能风能评估

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 DOI: 10.1016/j.seta.2026.105452

Sevim Gökalp, Cavit Yeşilyurt

{"title":"Weather-record adequacy for renewable portfolio and storage planning: A 25-year solar-wind assessment for Türkiye","authors":"Sevim Gökalp, Cavit Yeşilyurt","doi":"10.1016/j.seta.2026.105452","DOIUrl":"10.1016/j.seta.2026.105452","url":null,"abstract":"<div><div>Planning studies often compress multi-decadal weather chronology to a few representative years, yet short records can distort both event statistics and planning decisions. This study develops a decision-adequacy framework using 25 years of hourly ERA5 data for 81 provinces in Türkiye, linking compound solar-wind droughts, constrained conditional value-at-risk (CVaR) portfolios, record-length tests, and cyclic storage screening. With q20 thresholds fixed from 2001 to 2025, the 2020–2024 record yields 4.8 widespread-drought days/year versus 6.28/year over the full record; re-estimating thresholds within 2020–2024 would give 6.8. At a 0.18 mean-output target, only 47.6% of five-year windows are feasible, whereas all tested windows are feasible at targets up to 0.175. Daily-CVaR reduces tail shortfall by 5.9% and mean shortfall by 8.5% relative to expected-output planning. Deterministic tie-breaking leaves short-window allocation differences largely unchanged, but near-optimal analysis shows that exact weights are weakly identified, so performance and feasibility are emphasized over L1 distance alone. Under cyclic storage, diversified portfolios require 96 MWh/MW at a 0.15 target, while none meets the 0.1% energy-not-served criterion within 600 MWh/MW at a 0.17 target under the baseline storage-power limit.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105452"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149161466","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reserve-risk-oriented regime-calibrated interval forecasting for wind power integration under extreme fluctuations 极端波动下以储备风险为导向的风力发电一体化制度校准区间预测

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-09-27 DOI: 10.1016/j.seta.2026.105438

Yang Wang, Haiyun Wang

{"title":"Reserve-risk-oriented regime-calibrated interval forecasting for wind power integration under extreme fluctuations","authors":"Yang Wang, Haiyun Wang","doi":"10.1016/j.seta.2026.105438","DOIUrl":"10.1016/j.seta.2026.105438","url":null,"abstract":"<div><div>With increasing wind penetration, reliable prediction intervals are essential for reserve preparation and risk-aware operation. However, satisfactory aggregate coverage may conceal substantial under-coverage during ramp and high-volatility conditions. This study proposes a regime-calibrated interval forecasting framework that integrates Lightweight Temporal Feature Adaptation, extreme-regime-aware quantile learning, and horizon- and regime-dependent conformal recalibration. An author-pretrained iTransformer is used as the temporal backbone, whose parameters are frozen while lightweight adapters and a quantile forecasting head are optimized for the target task. The framework is evaluated on two source wind farms with installed capacities of 99 MW and 200 MW and independently tested on an unseen 240 MW high-altitude complex-terrain wind farm. On the source farms, the proposed method achieves prediction interval coverage probabilities of 0.903 and 0.901 at the 90 % nominal level, with normalized interval widths of 0.144 and 0.150. Compared with standard conformalized quantile regression, interval width is reduced by 23.8 % and 26.8 %, respectively. The reserve-relevant shortfall rate is also reduced to 0.074 and 0.081. The results demonstrate that the proposed framework improves interval reliability, sharpness, and cross-site robustness under operationally critical wind power fluctuations.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105438"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149161567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A physics-guided spatiotemporal learning framework for predicting the state of health and remaining useful life of lithium-ion batteries 用于预测锂离子电池健康状态和剩余使用寿命的物理指导时空学习框架

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-10-14 DOI: 10.1016/j.seta.2026.105472

Jiayuan Guo, Na Qin, Deqing Huang, Li Cai, Yirui Yin, Xiaomeng Zhang

{"title":"A physics-guided spatiotemporal learning framework for predicting the state of health and remaining useful life of lithium-ion batteries","authors":"Jiayuan Guo, Na Qin, Deqing Huang, Li Cai, Yirui Yin, Xiaomeng Zhang","doi":"10.1016/j.seta.2026.105472","DOIUrl":"10.1016/j.seta.2026.105472","url":null,"abstract":"<div><div>Reliable joint prediction of state of health (SOH) and remaining useful life (RUL) is essential for lithium-ion battery health management. This study proposes PIGMNet, a Graph-Mamba framework that combines adaptive graph convolution with a selective state-space model to capture interactions among measurable health indicators and long-range degradation patterns. A physics-guided degradation-consistency residual regularizes SOH evolution, while cycle-to-cycle decrement and end-of-life boundary losses constrain RUL evolution and couple the two tasks. Homoscedastic uncertainty weighting is employed to balance the supervised and constraint losses. Experiments on the NASA, CALCE, and in-house accelerated-aging LTO datasets collected under different cycling protocols demonstrate strong prediction performance across diverse degradation conditions. PIGMNet achieves the lowest mean SOH errors on all evaluated test cases and the lowest RUL errors on eight of nine evaluated cases. The lowest SOH MAE/RMSE are 0.15/0.21 percentage points, while the lowest RUL MAE/RMSE are 2.55/3.32 cycles. These results demonstrate accurate and degradation-consistent joint battery prognostics.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105472"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149205047","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic characteristics sensitivity mechanisms and frequency detuning criterion for large Pelton turbine runners 大型水轮机转轮动态特性、灵敏度机理及频率失谐判据

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-10-06 DOI: 10.1016/j.seta.2026.105462

Bohan Yang, Junpeng Zhou, Shijian Wang, Quanwei Liang, Yangming Fan, Jianjun Xiong

{"title":"Dynamic characteristics sensitivity mechanisms and frequency detuning criterion for large Pelton turbine runners","authors":"Bohan Yang, Junpeng Zhou, Shijian Wang, Quanwei Liang, Yangming Fan, Jianjun Xiong","doi":"10.1016/j.seta.2026.105462","DOIUrl":"10.1016/j.seta.2026.105462","url":null,"abstract":"<div><div>Pelton turbine runners are core components of high-head hydropower stations, and their dynamic reliability directly determines the safe and stable operation of units. Traditional static resonance avoidance designs are generally based on ideal boundary conditions. They overlook the complexity of assembly constraints and long-term modal degradation induced by sediment erosion, and thus cannot meet the operational demands of sediment-laden river basins.</div><div>This study takes a 150 MW six-nozzle Pelton runner as the research object. A high-fidelity rotor-shaft coupled finite element model is developed and validated through on-site PolyMAX modal testing. For critical tangential bending modes, the maximum relative error of the model is 1.56 %. A directional sensitivity bifurcation of boundary stiffness is revealed: tangential modes are structurally insensitive at low nodal diameters and asymptotically engineering-insensitive at high nodal diameters. Field monitoring across two overhaul cycles shows that sediment erosion dominated by stiffness degradation causes a cumulative frequency downshift of 8.6 Hz for the ND = 5 tangential mode.</div><div>Integrating multi-source disturbances and a dynamic stress amplification factor threshold of 5, a full-lifecycle dynamic frequency detuning criterion with a ±4 Hz safety margin is proposed. Over 16,000 h of crack-free operation provides field evidence supporting its engineering applicability, offering reference for vibration control of large high-head Pelton turbines.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105462"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149161422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Technology assessment of a chemical looping-integrated biorefinery for green urea from kraft lignin: Pinch-based energy efficiency and probabilistic techno-economics 从硫酸盐木质素中提取绿色尿素的化学环一体化生物精炼厂的技术评估：基于pinchbased的能源效率和概率技术经济学

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-09-29 DOI: 10.1016/j.seta.2026.105441

Youssef Aitnaceur, Anass AIT Benhamou, Fatima-Zahra Azar, Lokmane Abdelouahed, Nabil Grimi, Amine Moubarik

{"title":"Technology assessment of a chemical looping-integrated biorefinery for green urea from kraft lignin: Pinch-based energy efficiency and probabilistic techno-economics","authors":"Youssef Aitnaceur, Anass AIT Benhamou, Fatima-Zahra Azar, Lokmane Abdelouahed, Nabil Grimi, Amine Moubarik","doi":"10.1016/j.seta.2026.105441","DOIUrl":"10.1016/j.seta.2026.105441","url":null,"abstract":"<div><div>This study evaluates, at a conceptual screening level, an integrated biorefinery converting 200 tons/day of kraft lignin into green urea through gasification, chemical looping (CL), Haber-Bosch ammonia synthesis (HB), and urea production. The assessment combinesmodelling, pinch-based heat integration, techno-economic analysis (TEA), and Monte Carlo analysis (MCA). At a minimum temperature approach of 10 °C, heat integration reduces external utility demand by 33.4%, from 63.3 to 42.2 Gcal/hr, and utility-related CO<sub>2</sub> is incorporated into the urea product within the defined gate-to-gate boundary. The minimum selling price of green urea is estimated at $0.53/kg, with a fixed capital investment (FCI) of $43.0 million and annual operating expenses (OPEX) of $15.37 million. MCA yields a mean net present value of $12.0 million and a 71.2% probability of positive financial performance at the MSP. Overall, the results indicate promising process-level emission-reduction and economic potential, while further kinetic, equipment-level, and life-cycle validation is required.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105441"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149161473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Participation-response-aware dynamic profit allocation for virtual power plants using heterogeneous graph-enhanced multi-agent actor–critic 基于异构图增强多智能体的虚拟电厂参与响应感知动态利润分配

IF 7.4 2区工程技术

Sustainable Energy Technologies and Assessments Pub Date : 2026-10-01 Epub Date: 2026-10-08 DOI: 10.1016/j.seta.2026.105466

Mengxin Liu, Gang Zhang, Deyi Wang, Tuo Xie, Liuyu Yang

{"title":"Participation-response-aware dynamic profit allocation for virtual power plants using heterogeneous graph-enhanced multi-agent actor–critic","authors":"Mengxin Liu, Gang Zhang, Deyi Wang, Tuo Xie, Liuyu Yang","doi":"10.1016/j.seta.2026.105466","DOIUrl":"10.1016/j.seta.2026.105466","url":null,"abstract":"<div><div>Internal profit allocation in virtual power plants (VPPs) affects cooperative-gain sharing and subsequent coalition operation through member participation responses. Existing single-period methods cannot jointly capture heterogeneous resource relationships, dynamic contributions, and cross-period feedback. This paper proposes a heterogeneous graph-enhanced multi-agent Actor–Critic method (HG-MAAC) for dynamic internal profit allocation. HG-MAAC combines a time-varying heterogeneous graph and Transformer with type-shared Actors and coalition-level coordination to generate budget-balanced, nonnegative allocations. Settled profits update participation and committed flexibility, allowing subsequent coalition profit to evaluate current actions. Across ten independent training–replay runs, HG-MAAC ranks first among seven baselines and yields mean cumulative coalition profit of CNY 1.530 million. Relative to the centralized policy, profit increases by 1.80% (95% confidence interval: 1.55%–2.09%), contribution tracking improves by 3.17%, and deviation penalty costs decrease by 2.93%; all differences remain significant after Holm correction. Removing participation response feedback increases penalty costs by 22.6% and reduces committed flexibility and coalition profit by 8.9% and 3.2%, respectively. SHAP attributes 75.8% of total mean absolute importance to the six leading features, supporting coordination of dynamic contributions, member incentives, and long-term coalition performance.</div></div>","PeriodicalId":56019,"journal":{"name":"Sustainable Energy Technologies and Assessments","volume":"94 ","pages":"Article 105466"},"PeriodicalIF":7.4,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149161479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0