Electric Power Systems Research最新文献_第3页

CCS-CoLearn: A cooperative learning framework for shared carbon capture and storage infrastructure — Application to Liverpool bay and the North-West UK cluster ccs - collearn：共享碳捕集与封存基础设施的合作学习框架——在利物浦湾和英国西北部集群的应用

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-01-24 DOI: 10.1016/j.epsr.2026.112778

Sami Astan , Kavan Fatehi , Amin Hajizadeh

{"title":"CCS-CoLearn: A cooperative learning framework for shared carbon capture and storage infrastructure — Application to Liverpool bay and the North-West UK cluster","authors":"Sami Astan , Kavan Fatehi , Amin Hajizadeh","doi":"10.1016/j.epsr.2026.112778","DOIUrl":"10.1016/j.epsr.2026.112778","url":null,"abstract":"<div><div>The paper introduces CCS-CoLearn, an integrated cooperative learning framework for the predictive and equitable operation of shared carbon capture and storage (CCS) infrastructures. The methodology unifies probabilistic deep-learning forecasting with game-theoretic optimisation to coordinate multiple industrial emitters linked to a common transport-and-storage system. A Transformer–BiLSTM ensemble generates multi-quantile forecasts of CO₂ inflows, parasitic electrical loads, and market prices, which feed a Nash-bargaining coordination layer ensuring fairness and Pareto efficiency among participants. The system is implemented within a digital-twin simulation of the Liverpool Bay CCS network, coupled to a reduced Great Britain power-grid model. Scenario analyses for 2030 and 2050 show that CCS-CoLearn achieves up to 18 % total-cost reduction, fairness index > 0.9, and 10 % higher CO₂ abatement compared with non-cooperative or rule-based baselines. The framework demonstrates that intelligent coordination can substitute for physical over-capacity, providing a scalable pathway for data-driven and cooperative management of CCS clusters under the UK Net-Zero 2050 strategy.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"255 ","pages":"Article 112778"},"PeriodicalIF":4.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146039175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 study on the impacts of unbalanced AC underground distribution cables on their neighboring metal pipes 交流地下配电电缆不平衡对相邻金属管道的影响研究

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-02-04 DOI: 10.1016/j.epsr.2026.112812

Osama E. Gouda , Gomaa F.A. Osman

{"title":"A study on the impacts of unbalanced AC underground distribution cables on their neighboring metal pipes","authors":"Osama E. Gouda , Gomaa F.A. Osman","doi":"10.1016/j.epsr.2026.112812","DOIUrl":"10.1016/j.epsr.2026.112812","url":null,"abstract":"<div><div>In this paper the influences of unbalanced and faulty underground distribution cables on their neighboring pipelines are investigated. The studied cases include unbalances of the cable phases in current amplitudes, in phase shifts and in both of them. The impact of the induced potential on the pipelines has been highlighted in terms of the degree of unbalance, the composition of backfill soils surrounding the cables and pipelines as well as the separation distance between cables and pipelines. In addition, the impacts of homogeneous or heterogeneous soil and the cable laying depth on the induced voltage are investigated. The model simulation is executed by the use of the 2D-FEM with COMSOL multi-physics program. Significant increase in the induced voltages affecting buried metal pipes near the cable path is observed when there is imbalance in cable phases. The induced voltage reaches 32.24, 28.84, and 19.6 times the permissible value in cases of unbalanced 33 kV, 11 kV and 0.4 kV respectively with sandy soil as backfill material. It is found that the induced voltage depends on the soil composition, the space between the cables and PLs, in addition to the unbalance of cable phases. The safe distances between distribution cables and the pipelines have been examined and recommendations are made for safe distances. Installing cables inside PVC ducts mitigates the induced voltage by about 33.81% to 32% of its value. The present paper results are useful for workers in the installations of electrical cables and metal pipelines.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"255 ","pages":"Article 112812"},"PeriodicalIF":4.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146189628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 field‑deployable calibration platform for on‑line dissolved gas monitoring systems in power transformer oil 电力变压器油中溶解气体在线监测系统的现场可部署校准平台

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-02-03 DOI: 10.1016/j.epsr.2026.112782

Yue Ma, Xiaofeng Ma, Ronghui Wang, Jianhua Li, Kai Guan, Xiaofeng Chen

{"title":"A field‑deployable calibration platform for on‑line dissolved gas monitoring systems in power transformer oil","authors":"Yue Ma, Xiaofeng Ma, Ronghui Wang, Jianhua Li, Kai Guan, Xiaofeng Chen","doi":"10.1016/j.epsr.2026.112782","DOIUrl":"10.1016/j.epsr.2026.112782","url":null,"abstract":"<div><div>On‑line dissolved gas analysis (DGA) of transformer oil is essential for diagnosing incipient insulation faults and ensuring the operational reliability of power transformers. However, long‑term operation leads to sensor drift and reduced sensitivity, which eventually result in inadequate calibration and degraded diagnostic accuracy. To address these issues, this study proposes a comprehensive field‑deployable calibration platform based on precisely prepared standard oil samples. An integrated preparation‑calibration platform is developed, incorporating controlled single‑component gas injection, constant‑temperature and constant‑pressure oil‑gas equilibrium, automated multi‑level concentration switching, and pipeline self‑cleaning.</div><div>The proposed platform enables accurate preparation of dissolved‑gas reference samples with high linearity (R² ≥ 0.99). A complete on-site calibration workflow is established and validated on a 220 kV hydropower transformer. Based on comparative calibration using the prepared standard oil samples, results show that the tested commercial on‑line DGA device exhibits substantial deviations, indicating systematic accuracy limitations under field operating conditions. Statistical analysis including standard deviation, coefficient of variation, and error‑distribution plots further confirms poor repeatability of the device. A qualitative post‑calibration improvement trend is also provided to illustrate the expected correction behavior. The proposed methodology provides a full‑chain evaluation framework and a practical, standardized solution for field calibration of on‑line DGA systems, forming a methodological basis for large‑scale deployment of condition-based maintenance (CBM) strategies in smart‑grid applications.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"255 ","pages":"Article 112782"},"PeriodicalIF":4.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146189657","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Methodology for determining the electrical parameters of soil in the typical range of frequency components of lightning currents by means of measurements using a short cylindrical electrode 用短圆柱电极测定雷电电流典型频率分量范围内土壤电参数的方法学

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-02-10 DOI: 10.1016/j.epsr.2026.112787

Barbara Pereira, Laura C.S. Pires, Leandro L. Morais, Silverio Visacro

引用次数: 0

Temporary measures for distribution network restoration after natural disasters 自然灾害后配电网恢复临时办法

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-01-30 DOI: 10.1016/j.epsr.2026.112788

Anmar Arif

引用次数: 0

A power quality enhancement using gradient descent-fuzzy logic controller in grid-connected PV system 基于梯度下降模糊控制器的并网光伏系统电能质量增强

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-01-20 DOI: 10.1016/j.epsr.2026.112746

Balaji Janapati, Nageswara Rao Pulivarthi

{"title":"A power quality enhancement using gradient descent-fuzzy logic controller in grid-connected PV system","authors":"Balaji Janapati, Nageswara Rao Pulivarthi","doi":"10.1016/j.epsr.2026.112746","DOIUrl":"10.1016/j.epsr.2026.112746","url":null,"abstract":"<div><div>In recent years, the integration of renewable energy sources, particularly Photovoltaic (PV) systems into the power grid have introduced critical power quality issues. These issues primarily arise from the dynamic behavior of related power electronic converters and the intermittent nature of solar generation. Traditional standalone Maximum Power Point Tracking (MPPT) algorithms repeatedly suffered from poor adaptability, slow dynamic response under varying conditions, and insufficient harmonic reduction. These limitations degraded grid performance and inefficient energy withdrawal from PV systems. To overcome these challenges, this research proposes a novel hybrid approach that integrates Gradient Descent optimization with a Fuzzy Logic Controller (GD-FLC). The proposed controller is applied to a 100-kW grid connected PV system, incorporating an LC filter and MPPT-based boost converter to adjust voltage and improve power quality. The proposed GD-FLC attains fastest MPPT tracking time (0.29 s) under irradiance variation, and (0.28 s) under load variation, along with the lowest average rise time (0.0117 s). Similarly, it achieved output energy (160.72KJ) under step variation and 150.49KJ under ramp variation, clearly outperforming existing MPPT techniques. The GD-FLC controller offers an effective solution for grid-connected PV systems by attaining 89.82 kW for grid load and 80.09 kW for non-linear load respectively.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"255 ","pages":"Article 112746"},"PeriodicalIF":4.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146039097","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 novel CDPFC for harmonic resonance suppression in offshore wind farms 一种用于海上风电场谐波抑制的新型CDPFC

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-01-24 DOI: 10.1016/j.epsr.2026.112763

Qingchuan Fan , Yu Deng , Yanhong Jiang , Yongjie Zhang , Yong Xu , Qiuqin Sun

{"title":"A novel CDPFC for harmonic resonance suppression in offshore wind farms","authors":"Qingchuan Fan , Yu Deng , Yanhong Jiang , Yongjie Zhang , Yong Xu , Qiuqin Sun","doi":"10.1016/j.epsr.2026.112763","DOIUrl":"10.1016/j.epsr.2026.112763","url":null,"abstract":"<div><div>Offshore wind farms (OWFs) are prone to harmonic resonance problems as it is delivered via submarine cables. Existing methods for harmonic resonance are mostly limited to specific conditions, and may fail when the operating condition of system changes. In this paper, a novel topology based on cascaded distributed power flow controller (CDPFC) is proposed. Its harmonic suppression effect is analyzed by connecting it in series to the OWFs. Optimization of DPFC units using cascaded H-bridge topology to improve harmonic tracking fitting capability. Using the harmonic voltages collected by Hanning-windowed discrete Fourier transform (DFT) as a reference, a dual-vector model predictive control (MPC) strategy with the objective of minimizing the voltage envelopment area is proposed. The method not only suppresses the resonance amplification problem caused by background harmonics, but also optimizes the power quality of the grid in multiple frequency bands. The harmonic content of the grid-connected voltage is greatly reduced through the precise control of the harmonic components.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"255 ","pages":"Article 112763"},"PeriodicalIF":4.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146039171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 multi-objective evolutionary algorithm with Pre-selection and self-adjusting mechanism for fault reconstruction in multi-load independent power distribution system 多负荷独立配电系统故障重构的多目标预选择自适应进化算法

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-01-24 DOI: 10.1016/j.epsr.2026.112770

Tianhao Gong, Dazhi Wang, Yupeng Zhang, Tianyi Li

引用次数: 0

A simultaneous wireless power and signal transfer system based on dual-frequency channel and power allocation 一种基于双频信道和功率分配的无线电力与信号同步传输系统

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-02-09 DOI: 10.1016/j.epsr.2026.112838

Xue-Jian Ge , Yi-Wen Wang , Ding-Qiang Ren , Ming-Hao Tang , Lei Wang

{"title":"A simultaneous wireless power and signal transfer system based on dual-frequency channel and power allocation","authors":"Xue-Jian Ge , Yi-Wen Wang , Ding-Qiang Ren , Ming-Hao Tang , Lei Wang","doi":"10.1016/j.epsr.2026.112838","DOIUrl":"10.1016/j.epsr.2026.112838","url":null,"abstract":"<div><div>In wireless power transfer systems, communication between the transmitting and receiving sides is generally required to achieve efficient and stable power transmission. In this paper, a simultaneous wireless power and signal transfer system is proposed based on the dual-frequency channel power transfer topology. Under the premise of ensuring the stability of the total transmission power, the simultaneous transmission of signal is realized by changing the ratio between the fundamental and harmonic power, which does not require additional signal transmission channel and can simplify the structure of the system. This paper first introduces the topology structure of the proposed system and its power transmission principle, and then analyzes the operating principle of signal transmission, as well as modulation and demodulation methods. Considering the stability of power transmission, the signal transmission rate is analyzed. To reduce the mutual interference between power and signal transmission, the system parameters are designed and optimized. Based on the theoretical analysis, a simulation model is established to verify the simultaneous signal transmission. Finally, an experimental prototype is set up and tested. The experimental results verify that the proposed system can achieve stable simultaneous transmission of power and signal, with a signal transmission rate of up to 5kbps.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"255 ","pages":"Article 112838"},"PeriodicalIF":4.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

An optimization method for commutation failure mitigation under asymmetric faults in LCC-HVDC 非对称故障下LCC-HVDC换相失效的优化缓解方法

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2026-06-01 Epub Date: 2026-02-06 DOI: 10.1016/j.epsr.2026.112801

Renlong Zhu , Shuowei Chen , Xin Tang , Xingyu Shi , Peng Guo , Wen Wang , Zhiming Guo , Yufei Yue

{"title":"An optimization method for commutation failure mitigation under asymmetric faults in LCC-HVDC","authors":"Renlong Zhu , Shuowei Chen , Xin Tang , Xingyu Shi , Peng Guo , Wen Wang , Zhiming Guo , Yufei Yue","doi":"10.1016/j.epsr.2026.112801","DOIUrl":"10.1016/j.epsr.2026.112801","url":null,"abstract":"<div><div>Line-commutated-converter based high voltage direct current (LCC<img>HVDC) systems are susceptible to commutation failure (CF) under AC faults, posing a severe threat to power grid stability. Under asymmetric faults, different commutation processes (CP) exhibit varying CF risks due to significant differences in commutation voltages. This paper analyzes the impact of advanced firing on commutation processes and the CF risk for individual CPs under asymmetric faults, pointing out that for low-risk CPs, the benefit of reduced reactive power consumption without advanced firing outweighs the benefit of implementing advanced firing to ensure successful commutation. Thus, a novel method is proposed to enhance CF resistance capability by optimizing advanced firing application. To verify the effectiveness of the proposed method, it is applied to both direct and indirect advanced firing control approaches. Simulations are conducted in PSCAD/EMTDC using the CIGRE benchmark model and a dual-infeed HVDC model. The results of waveforms and Commutation Failure Immunity Index (CFII) comprehensively demonstrate that the proposed method effectively mitigates CF while maintaining good applicability across diverse operational scenarios.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"255 ","pages":"Article 112801"},"PeriodicalIF":4.2,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146189649","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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