Electric Power Systems Research最新文献_第2页

Transient electromagnetic interference on buried pipelines caused by double circuit overhead power lines 双回架空电力线路对埋地管线的瞬态电磁干扰

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-28 DOI: 10.1016/j.epsr.2025.112035

T.A. Papadopoulos , A.G. Martins-Britto , A.I. Chrysochos

{"title":"Transient electromagnetic interference on buried pipelines caused by double circuit overhead power lines","authors":"T.A. Papadopoulos , A.G. Martins-Britto , A.I. Chrysochos","doi":"10.1016/j.epsr.2025.112035","DOIUrl":"10.1016/j.epsr.2025.112035","url":null,"abstract":"<div><div>Analysis of the electromagnetic interference (EMI) between overhead lines (OHL) and nearby buried pipelines requires the accurate calculation of the self and mutual electrical parameters of all conductors in the arrangement. This becomes more important when investigating high-frequency (HF) EMI. Common approaches presume that the impact of the mutual capacitive coupling as well as the frequency-dependent soil characteristics can be disregarded. However, such approximations may result into estimates that overlook critical interactions. In this article, a recent formulation for calculating both the mutual impedance and admittance between overhead and underground conductors is adopted to investigate HF EMI on a pipeline caused by lightning strikes in a double-circuit OHL. Wave propagation characteristics and transient responses are computed using both frequency-dependent and constant properties soil models to evaluate the importance of the proposed approach on EMI studies; significant differences are observed. Comparisons are also carried out with approximate earth formulations, where the influence of the displacement current is disregarded. In addition, the impact of the pipeline burial depth is examined.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 112035"},"PeriodicalIF":3.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144713693","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

Four-level framework for enhancing active distribution network resilience to wind storms 提高主动配电网抗风暴能力的四级框架

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-26 DOI: 10.1016/j.epsr.2025.112027

Abolfazl Shabani , Mehdi Nafar , Taher Niknam

{"title":"Four-level framework for enhancing active distribution network resilience to wind storms","authors":"Abolfazl Shabani , Mehdi Nafar , Taher Niknam","doi":"10.1016/j.epsr.2025.112027","DOIUrl":"10.1016/j.epsr.2025.112027","url":null,"abstract":"<div><div>Traditional distribution system planning often overlooks resilience enhancement measures despite the increasing frequency and severity of extreme weather events. This paper presents a four-level resilience enhancement framework to address these challenges, focusing on replacing aging distribution lines, a major contributor to prolonged outages. The framework utilizes fragility curves to assess the impact of wind speed on poles, conductors, and wind turbines, with failure states evaluated through Monte Carlo Simulation (MCS). It introduces a resilience enhancement criterion incorporating repair costs, Distributed Generators (DGs) generation costs, and end-user interruption costs, estimated via a time-based penalty mechanism tailored for extreme weather events. The study also explores the role of local DGs in supporting critical loads through islanding after extreme events. The line hardening planning problem is formulated as a knapsack optimization problem and solved using Particle Swarm Optimization (PSO). The case study demonstrates that hardening lines connecting the distribution system to the upstream grid offers the greatest resilience benefits. Simulation results show that a coordinated line hardening strategy, combined with effective DG operation, can enhance system resilience by up to 80 %, underscoring the importance of integrating resilience planning into distribution system operation for better weather event preparedness and recovery.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 112027"},"PeriodicalIF":3.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711455","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

Day-ahead operation optimization of microgrid based on enhanced sardine optimization algorithm 基于增强型沙丁鱼优化算法的微电网日前运行优化

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-26 DOI: 10.1016/j.epsr.2025.112047

Yintong Lu, Liheng Liu, Jun Zhang, Yu Peng

引用次数: 0

Low-carbon collaborative scheduling method for EV charging stations based on robust optimization and cooperative game theory 基于鲁棒优化和合作博弈论的电动汽车充电站低碳协同调度方法

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-26 DOI: 10.1016/j.epsr.2025.112046

Guancheng Huang, Longhua Mu, Chongkai Fang

{"title":"Low-carbon collaborative scheduling method for EV charging stations based on robust optimization and cooperative game theory","authors":"Guancheng Huang, Longhua Mu, Chongkai Fang","doi":"10.1016/j.epsr.2025.112046","DOIUrl":"10.1016/j.epsr.2025.112046","url":null,"abstract":"<div><div>Modern electric vehicle charging stations (EVCSs) are usually integrated with renewable energy sources like photovoltaic (PV) units and energy storage systems (ESSs). This can help promote decarbonization and flexible management but also introduces several challenges, including uncertainties in electric vehicle (EV) charging behavior and PV power output, benefit distribution among participants, and the absence of low-carbonization mechanisms. To address this, this paper proposes a coordinated EVCSs scheduling method based on robust optimization and cooperative game theory. First, a multi-energy-flow coupling model of the EV-PV-ESS-Grid system is established, which quantifies the carbon reduction benefits of EVCS clusters by embedding carbon emission flow constraints. After that, a robust optimization model is formed to minimize total operating costs and carbon emission costs. Gaussian mixture modeling (GMM) and a distributionally robust chance constraint (DRCC) framework driven by residual-based PV uncertainty are integrated to handle the uncertainties in EV behavior and PV generation. Furthermore, based on cooperative game theory, a collaborative framework is designed for EVCS clusters, combining Shapley value-based benefit distribution with a carbon trading mechanism to incentivize low-carbon collaboration and ensure equitable benefit distribution. Simulation results of a test system with three interconnected EVCSs demonstrate that the proposed method can reduce total operating and carbon emission costs by 6.71 % and 7.9 % respectively. Additionally, the benefit imbalance issue is effectively resolved with the Shapley value-based benefit distribution method.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 112046"},"PeriodicalIF":3.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711456","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 real-time pricing scheme in power market with renewable energy considering different advertising attractiveness 考虑不同广告吸引力的可再生能源电力市场实时定价方案

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-26 DOI: 10.1016/j.epsr.2025.112058

Yeming Dai, Yaxin Liu

{"title":"A real-time pricing scheme in power market with renewable energy considering different advertising attractiveness","authors":"Yeming Dai, Yaxin Liu","doi":"10.1016/j.epsr.2025.112058","DOIUrl":"10.1016/j.epsr.2025.112058","url":null,"abstract":"<div><div>Increasing renewable energy and intensifying competition are becoming common in smart grid. How to make decisions to consistently attract users for power retailers has gradually become one of research focuses. However, the coordination of sustained attracting different types of users, competition among power retailers, and demand response between power retailers and users in continuous time has not been adequately considered. In view of the above gaps, this paper develops a real-time pricing scheme combined with advertising attractiveness by constructing the Stackelberg differential game model. Furthermore, this paper also explores the relationship between the maximum revenue of power retailers and advertising costs under this scheme, as well as the changes in users’ consumption of renewable energy after advertising intervention. Numerical simulations show that there is a significant non-monotonic relationship between the maximum revenue and price of power retailers and the advertising cost parameters, indicating that the increase in advertising investment does not always lead to a linear growth in revenue, but presents an obvious segmented feature. Under this scheme, the consumption of renewable energy by users is far greater than that of thermal power, which reflects the enhanced environmental awareness of users. Furthermore, the gap in advertising investment among different power retailers has a significant impact on their maximum revenue.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 112058"},"PeriodicalIF":3.3,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144711457","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

Transient electric field analysis of 750 kV GIS breaker under lightning impulse delivery test 750kv GIS断路器雷击试验暂态电场分析

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-25 DOI: 10.1016/j.epsr.2025.112062

Cai Xu , Li Chao , Zhao Jingyu , Jiang Zhaojun , Ma Feiyue , Niu Bo , Ni Hui , Deng Junbo

{"title":"Transient electric field analysis of 750 kV GIS breaker under lightning impulse delivery test","authors":"Cai Xu , Li Chao , Zhao Jingyu , Jiang Zhaojun , Ma Feiyue , Niu Bo , Ni Hui , Deng Junbo","doi":"10.1016/j.epsr.2025.112062","DOIUrl":"10.1016/j.epsr.2025.112062","url":null,"abstract":"<div><div>Ultra-high-voltage electrical equipment places stringent demands on electric field distribution. Traditional engineering calculations often assess the insulation performance of equipment using electrostatic field methods, neglecting the process of polarization establishment within the equipment. To address this limitation, this paper proposes a method that combines Variational Mode Decomposition (VMD) and Hilbert Transform to extract the instantaneous frequency of high-frequency voltage signals. The resulting instantaneous frequency, in conjunction with the dielectric spectrum of different insulating materials, is used to determine the transient electric field variation within key insulating components of the circuit breaker. Compared to the traditional electrostatic field method, the maximum insulator transient electric field strength inside the circuit breaker under lightning impulse voltage is 1.65 % higher, with the electrostatic field and transient field results being similar. However, when spherical metallic microparticles attach to the surface of the support insulator, the maximum field strength at the most distorted point is significantly higher than that predicted by the electrostatic field calculation. This finding is validated through lightning impulse experiments. This method provides a computational basis for insulation margin design and fault analysis of power equipment under high-frequency voltage conditions.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 112062"},"PeriodicalIF":3.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703356","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

Blockchain-based transaction mechanism in virtual power plant: considering users’ privacy and reputation 基于区块链的虚拟电厂交易机制：考虑用户隐私和信誉

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-25 DOI: 10.1016/j.epsr.2025.111988

Changsen Feng , Jianghao Cheng , Zhongxu Li , Yong Yan , Lijun Ma , Lei An , Youbing Zhang

{"title":"Blockchain-based transaction mechanism in virtual power plant: considering users’ privacy and reputation","authors":"Changsen Feng , Jianghao Cheng , Zhongxu Li , Yong Yan , Lijun Ma , Lei An , Youbing Zhang","doi":"10.1016/j.epsr.2025.111988","DOIUrl":"10.1016/j.epsr.2025.111988","url":null,"abstract":"<div><div>With the widespread adoption of distributed energy, the Virtual Power Plants (VPP) which is responsible for aggregating the flexible resources is becoming increasingly significant, especially in the electricity market. However, the traditional demand response (DR) trading mechanism in VPP faces issues such as data privacy leakage and unfair market profit distribution, which reduce users' trust and willingness to participate in market transactions. To address these issues, this paper proposes a new VPP’s trading mechanism that integrates blockchain and cryptographic technologies while considering users’ privacy protection and reputation values. Firstly, paillier homomorphic encryption (Paillier) and elliptic curve digital signature algorithms (ECDSA) are employed to protect data privacy, ensuring that the data of the VPP’s partispants remains secure. Secondly, a multi-party evaluation-based reputation mechanism is introduced, where multiple parties assess the users’ reputations, enhancing market clearing fairness and providing incentive-based responses. Finally, a blockchain-assisted data management solution was designed utilizing the immutability and distributed storage features of blockchain, effectively preventing malicious data tampering. Simulation results show that this trading mechanism not only improves transaction fairness and security but also enhances users’ participation enthusiasm.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 111988"},"PeriodicalIF":3.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703351","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

Multi-path overvoltage analysis and fault traceability from lightning strikes on box-type transformers in mountainous wind farms 山区风电场箱型变压器雷击多径过电压分析及故障溯源

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-25 DOI: 10.1016/j.epsr.2025.112048

Jian Dang , Zhao Luo , Shaopeng Zhang , Tuanjie Wang , Jianxin Wu , Rong Jia

{"title":"Multi-path overvoltage analysis and fault traceability from lightning strikes on box-type transformers in mountainous wind farms","authors":"Jian Dang , Zhao Luo , Shaopeng Zhang , Tuanjie Wang , Jianxin Wu , Rong Jia","doi":"10.1016/j.epsr.2025.112048","DOIUrl":"10.1016/j.epsr.2025.112048","url":null,"abstract":"<div><div>The power collector systems in mountainous wind farms are particularly vulnerable to lightning strike risks due to multiple contributing factors, such as their high altitude, complex terrain configuration, and extensive transmission corridor layout. Box-type transformers, which serve as a critical interface between wind turbines and the power collector system, are susceptible to multiple lightning strike paths and complex electromagnetic phenomena. This inherent complexity presents substantial challenges for the rapid and accurate identification of lightning fault sources. Consequently, there is an urgent need for a comprehensive analysis of lightning overvoltage propagation characteristics under multi-path conditions. This paper first establishes an electrical model for the wind farm power collector system and investigates how variations in system parameters influence its electrical performance. Subsequently, we analyze the overvoltage propagation characteristics of lightning current through three distinct propagation paths. A comparison of these characteristics is conducted, resulting in the proposal of a multi-path feature synthesis criterion for lightning strike traceability. Finally, a simulation based on the actual operation of a wind farm in Hebei is presented to validate the results. The findings reveal the propagation characteristics of lightning overvoltages in box-type transformers under different paths, providing theoretical support for lightning strike traceability and fault analysis.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 112048"},"PeriodicalIF":3.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703352","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

Standardized pollution formulations for high-voltage insulators and their electrical characterization 高压绝缘子及其电气特性的标准化污染配方

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-25 DOI: 10.1016/j.epsr.2025.112007

Matheus Brati Rossetto , Alison Baena de Oliveira Monteiro , Rafael Pires Machado , Eduardo Massashi Yamao , Laudemir Antonio Caritá Jr. , Amanda Cortez

{"title":"Standardized pollution formulations for high-voltage insulators and their electrical characterization","authors":"Matheus Brati Rossetto , Alison Baena de Oliveira Monteiro , Rafael Pires Machado , Eduardo Massashi Yamao , Laudemir Antonio Caritá Jr. , Amanda Cortez","doi":"10.1016/j.epsr.2025.112007","DOIUrl":"10.1016/j.epsr.2025.112007","url":null,"abstract":"<div><div>Leakage current analysis is commonly used to assess surface contamination on high voltage insulators, but conventional metrics such as ESDD and NSDD lack real-time diagnostic capabilities. This study introduces standardized artificial pollution formulations based on IEC 60507 and IEC 60815 severity levels, aiming to improve test repeatability. The formulations were applied using controlled deposition methods, and their effects were evaluated through leakage current and impedance spectroscopy from 1 Hz to 1 MHz. A strong correlation (<span><math><mrow><mi>R</mi><mo>=</mo><mn>0</mn><mo>.</mo><mn>996</mn></mrow></math></span>) between NaCl mass and ESDD was established. Polluted specimens showed significant impedance reduction—from 1 T<span><math><mi>Ω</mi></math></span> to the M<span><math><mi>Ω</mi></math></span> range—highlighting the sensitivity of electrical response to contamination. The findings support impedance spectroscopy as a complementary diagnostic tool and reinforce its potential for automated classification and predictive maintenance in polluted environments.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 112007"},"PeriodicalIF":3.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703355","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

Optimal capacity allocation strategy of battery energy storage system considering the frequency regulation of wind-battery energy storage combined system 考虑风-电池储能联合系统频率调节的电池储能系统最优容量分配策略

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-07-25 DOI: 10.1016/j.epsr.2025.111880

Li Minzhuo , Yang Dejian , Qian Minhui , Chen Wei , Yan Gangui

{"title":"Optimal capacity allocation strategy of battery energy storage system considering the frequency regulation of wind-battery energy storage combined system","authors":"Li Minzhuo , Yang Dejian , Qian Minhui , Chen Wei , Yan Gangui","doi":"10.1016/j.epsr.2025.111880","DOIUrl":"10.1016/j.epsr.2025.111880","url":null,"abstract":"<div><div>With the continuous integration of renewable energy sources into the grid, the issue of system frequency stability has become increasingly prominent. Due to the fast response and bidirectional power regulation characteristics of battery energy storage system (BESS), they can help mitigate the impact of wind power fluctuations on grid frequency. Therefore, it is essential to co-optimize wind turbine (WT) control parameters and allocate BESS capacity economically while ensuring system frequency stability. Considering the influence of wind power penetration and the economic and performance aspects of frequency regulation (FR) by wind-BESS, a method for optimal capacity allocation strategy of BESS considering the FR of wind-battery energy storage combined system is proposed. Firstly, the system frequency response model with WT participation in FR is constructed. Secondly, a mathematical model for BESS capacity allocation is developed by integrating the system's FR effect and the economic considerations of BESS capacity allocation. This model combines BESS life cycle theory and incorporates the FR of the grid and the operational states of WT and BESS as constraints. The reverse search particle swarm optimization algorithm is applied to solve the BESS capacity allocation schemes under varying wind power penetration and optimized droop coefficient of the WT. Simulation results demonstrate that the proposed BESS capacity allocation method can reduce the required BESS capacity and associated costs by considering WT participation in FR while maintaining system stability.<span><span><sup>1</sup></span></span></div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"249 ","pages":"Article 111880"},"PeriodicalIF":3.3,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144703353","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