Electric Power Systems Research最新文献_第8页

Real-time electrocution detection system for HVEF based on ANFIS and CPSO_DP co-evolution mechanism 基于ANFIS和CPSO_DP协同进化机制的HVEF实时触电检测系统

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-17 DOI: 10.1016/j.epsr.2025.112258

Tao Sui, Shouchao Li, Jiayi Chen, Zewen Yao, Xiuzhi Liu

{"title":"Real-time electrocution detection system for HVEF based on ANFIS and CPSO_DP co-evolution mechanism","authors":"Tao Sui, Shouchao Li, Jiayi Chen, Zewen Yao, Xiuzhi Liu","doi":"10.1016/j.epsr.2025.112258","DOIUrl":"10.1016/j.epsr.2025.112258","url":null,"abstract":"<div><div>Adaptive neuro-fuzzy inference systems (ANFIS) provide powerful nonlinear modeling capabilities but are highly sensitive to noise and prone to suboptimal convergence when trained with conventional optimization methods. To address these challenges, this study proposes an enhanced ANFIS optimized by a convergence-speed-driven dynamic cooperative particle swarm optimization (ANFIS-CPSO_DP). The novelty of the method lies in dynamically regulating swarm population size according to convergence rate, enabling efficient transitions between global exploration and local exploitation. Theoretical justification is provided by analyzing convergence stability under dynamic population control, while experimental validation is performed on noisy electrocution detection tasks. Comparative results against PSO, CPSO, Differential Evolution, and JAYA optimizers demonstrate that ANFIS-CPSO_DP achieves the lowest RMSE, smallest error variance, and highest R<sup>2</sup> values across multiple noise levels. Furthermore, the error distribution reveals diagnostic features exploitable for fault identification, reinforcing the robustness and practical utility of the approach. This work fills the gap in noise-resilient ANFIS training by coupling adaptive population regulation with cooperative swarm intelligence, offering a reliable solution for real-time fault detection in noisy environments.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"251 ","pages":"Article 112258"},"PeriodicalIF":4.2,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100162","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 new negative-sequence cross-differential algorithm for double-circuit line protection 一种新的负序交叉差分双回保护算法

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-17 DOI: 10.1016/j.epsr.2025.112219

César C.S. Silva, Vitor R. Serpa, Kleber M. Silva

引用次数: 0

Theoretical analysis of the impact of IBRs on impedance trajectories during power swings 功率波动时ibr对阻抗轨迹影响的理论分析

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-17 DOI: 10.1016/j.epsr.2025.112218

Sachintha Kariyawasam, Athula Rajapakse

引用次数: 0

Effect of dibenzyl disulphide on partial discharge characteristics in mineral oil–impregnated cellulose pressboard 二硫化二苯酯对矿物油浸渍纤维素压制板局部放电特性的影响

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-17 DOI: 10.1016/j.epsr.2025.112212

Amran Mohd Selva , Norhafiz Azis , Mohd Zainal Abidin Ab Kadir , Jasronita Jasni , Hidayat Zainuddin , Mohd Fairouz Mohd Yousof

{"title":"Effect of dibenzyl disulphide on partial discharge characteristics in mineral oil–impregnated cellulose pressboard","authors":"Amran Mohd Selva , Norhafiz Azis , Mohd Zainal Abidin Ab Kadir , Jasronita Jasni , Hidayat Zainuddin , Mohd Fairouz Mohd Yousof","doi":"10.1016/j.epsr.2025.112212","DOIUrl":"10.1016/j.epsr.2025.112212","url":null,"abstract":"<div><div>This study investigates the partial discharge (PD) characteristics of mineral oil-impregnated cellulose pressboard induced by dibenzyl disulphide (DBDS). Mineral oils with DBDS concentrations of 0 ppm, 1,000 ppm, 5,000 ppm, and 10,000 ppm were thermally aged at 150 °C for 5 days. PD measurements, which included apparent charge, PD repetition rate, and partial discharge inception voltage (PDIV), were performed using needle–plane and plane–plane electrode configurations at 10 mm and 20 mm gap distances. Phase–resolved partial discharge (PRPD) patterns were analysed to assess discharge intensity and phase distribution. Results show that under the needle–plane configuration, PDIV increases by up to 44.3% in pressboards aged with 5000 ppm DBDS at both gap distances. In contrast, under the plane–plane configuration, PDIV of pressboards aged in 1,000 ppm DBDS at both gap distances decreases by up to 56%. PRPD analysis reveals a transition from compact, peak-centred discharges (Type 3) to broad and scattered patterns (Type 6) that indicates progressive surface degradation driven by DBDS contamination.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"251 ","pages":"Article 112212"},"PeriodicalIF":4.2,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145100121","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

Type-3 wind turbine generator model with generic high-level control for electromagnetic transient simulations 具有通用高级控制的3型风力发电机模型用于电磁暂态仿真

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-16 DOI: 10.1016/j.epsr.2025.112205

Anton Stepanov , Hossein Ashourian , Henry Gras , Jean Mahseredjian

{"title":"Type-3 wind turbine generator model with generic high-level control for electromagnetic transient simulations","authors":"Anton Stepanov , Hossein Ashourian , Henry Gras , Jean Mahseredjian","doi":"10.1016/j.epsr.2025.112205","DOIUrl":"10.1016/j.epsr.2025.112205","url":null,"abstract":"<div><div>Electromagnetic transient (EMT) simulations are instrumental in providing researchers and engineers with detailed data about the dynamic behavior of power grids, necessary for analysis, planning, and risk mitigation. Such simulation studies become even more relevant with the increased number of inverter-based resources integrated into the grid. To achieve reliable simulation results, accurate and accessible models are needed, since existing generic models do not always provide accurate transient response, especially during fast transients. This paper proposes a model for the type-3 wind turbine generator, otherwise known as doubly-fed induction generator (DFIG), that combines the benefits of the generic wind turbine model developed by the Western Electricity Coordinating Council (WECC), with the extra accuracy of a detailed electrical model for the DFIG. WECC models are widely used by planners in their phasor-domain model databases. The proposed WECC-DFIG model is designed to be used in EMT-type software, and due its inheritance of the high-level control system, it can reuse control settings from an existing WECC model without re-tuning. It improves accuracy during transients, such as balanced and unbalanced faults.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"251 ","pages":"Article 112205"},"PeriodicalIF":4.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099807","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

Data regression strategy to model transmission line faults on vegetation 植被条件下输电线路故障模型的数据回归策略

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-16 DOI: 10.1016/j.epsr.2025.112223

F.V. Lopes , A.M. Britto , E.P.A. Ribeiro , R.L.A. Reis , K.M. Silva , K.M. Dantas

{"title":"Data regression strategy to model transmission line faults on vegetation","authors":"F.V. Lopes , A.M. Britto , E.P.A. Ribeiro , R.L.A. Reis , K.M. Silva , K.M. Dantas","doi":"10.1016/j.epsr.2025.112223","DOIUrl":"10.1016/j.epsr.2025.112223","url":null,"abstract":"<div><div>This paper presents a study on data regression strategies which can model real-world cases of transmission line high impedance faults (HIFs) on vegetation. A reference HIF model implemented in the Alternative Transients Program (ATP)/ATPDraw is used as a supporting computational tool to evaluate different data regression formulas, which consider different amounts of parameters to represent the most prominent features of HIF resistance variations caused by the vegetation charring phenomenon. Real cases of HIFs on vegetation that took place on a 500 kV/60 Hz transmission line are investigated, through which a novel promising rational three-parameter regression function is identified. The obtained results reveal that such a novel regression formula further improves the accuracy of other models previously reported in the literature, without requiring complex setting procedures. For instance, comparing it against another existing three-parameter HIF model, the proposed approach reduced the root mean square errors from 17.55 <span><math><mi>Ω</mi></math></span> to 8.20 <span><math><mi>Ω</mi></math></span> in average, also improving the coincidence rate (measured via R-square coefficient) between real and simulated signals, which increased from 0.883 to 0.975 in average.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"251 ","pages":"Article 112223"},"PeriodicalIF":4.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099877","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

Pilot detection and location of broken conductor faults for tapped transmission lines 抽头输电线路导线断线故障的导频检测与定位

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-16 DOI: 10.1016/j.epsr.2025.112221

Milad Beikbabaei, Austin Dempsey, Brady Alexander, Ali Mehrizi-Sani

{"title":"Pilot detection and location of broken conductor faults for tapped transmission lines","authors":"Milad Beikbabaei, Austin Dempsey, Brady Alexander, Ali Mehrizi-Sani","doi":"10.1016/j.epsr.2025.112221","DOIUrl":"10.1016/j.epsr.2025.112221","url":null,"abstract":"<div><div>The increasing integration of inverter-based resources (IBR) introduces the need for new protection methods to detect open-circuit faults, such as broken conductor faults. Fast and reliable detection of broken conductor faults is critical, since an undetected fault can lead to wildfire. The presence of tapped lines in a transmission grid introduces further protection challenges since the measured current does not drop significantly compared to a scenario without tapped lines. Moreover, tapped transmission line measurements are not always available, making protection even more challenging. If a fault is located on a tapped line, only the tapped line needs to be disconnected, so locating the fault helps disconnect only the minimal affected area and increase the reliability of the grid. Most previous work does not study broken conductor faults with the presence of IBRs and tapped lines and does not propose ways to locate the fault. This work proposes a communication-based protection algorithm that can detect the broken conductor in a transmission system with tapped lines. The algorithm detects the fault in less than 55 ms and locates the fault accurately. The proposed method is tested under various cases in the modified IEEE 9-bus system with two grid-following IBRs using PSCAD/EMTDC.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"251 ","pages":"Article 112221"},"PeriodicalIF":4.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099780","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

Vulnerability-based and Risk-Aware Honeynet Deployment Framework in Cyber-Physical Power Systems 基于漏洞和风险感知的网络物理电力系统蜜网部署框架

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-16 DOI: 10.1016/j.epsr.2025.112247

Zhengwei Qu , Jiawei Lv , Jie Yang , Kai Ma , Yunjing Wang

{"title":"Vulnerability-based and Risk-Aware Honeynet Deployment Framework in Cyber-Physical Power Systems","authors":"Zhengwei Qu , Jiawei Lv , Jie Yang , Kai Ma , Yunjing Wang","doi":"10.1016/j.epsr.2025.112247","DOIUrl":"10.1016/j.epsr.2025.112247","url":null,"abstract":"<div><div>Honeynets are commonly employed to enhance network security. However, traditional honeynet deployment strategies lack quantitative assessment of cyber-physical cascading failures, limiting their effectiveness in mitigating chain reactions triggered by attacks. To address this limitation, this paper proposes an integrated defense framework that combines honeynet technology with Cyber-Physical Power Systems (CPPS) to counteract the impact of availability attacks. A static honeynet model based on node vulnerability is developed, incorporating features from both the information and physical layers to guide deployment. Additionally, a dynamic honeynet model based on node risk is proposed, and its protective performance across both layers is analyzed. The results demonstrate that the proposed approach significantly outperforms traditional honeynet strategies, offering improved defense capabilities. Through simulation experiments under resource constraints, the proposed method is shown to reduce load loss rates after availability attacks, enhance the residual connectivity of the information layer, and increase the total generator output. Furthermore, the defense effectiveness is maintained under varying attack intensities.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"251 ","pages":"Article 112247"},"PeriodicalIF":4.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099781","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

Leveraging bitcoin mining machines in demand-response mechanisms to mitigate ramping-induced transients 在需求响应机制中利用比特币矿机来缓解斜坡引起的瞬变

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-16 DOI: 10.1016/j.epsr.2025.112200

Elinor Ginzburg-Ganz , Ittay Eyal , Dmitry Baimel , Leena Santosh , Juri Belikov , Yoash Levron

{"title":"Leveraging bitcoin mining machines in demand-response mechanisms to mitigate ramping-induced transients","authors":"Elinor Ginzburg-Ganz , Ittay Eyal , Dmitry Baimel , Leena Santosh , Juri Belikov , Yoash Levron","doi":"10.1016/j.epsr.2025.112200","DOIUrl":"10.1016/j.epsr.2025.112200","url":null,"abstract":"<div><div>Several previous works examine the use of cryptographic mining machines, for instance Bitcoin mining machines, in demand-response mechanisms, as part of the portfolio of assets managed by the grid operator. This paper extends this formulation by addressing the effects of fast ramping transients, which may often occur in power grids rich with renewable energy sources. The resulting optimization problem is solved based on Pontryagin’s minimum principle. The solution is used to examine the profitability and usage of these machines in a real-world settings, based on data from the California ISO and the “Noga” grid operator. A sensitivity analysis is conducted, considering the effects of several key parameters, such as the electricity price, and the machines’ price, hashrate and monetary revenue. These are examined for several different machine types that are available in the market today. The main conclusion is that the profitability of the discussed mechanism is highly influenced by the cost of the mining machines, and the percentage of renewable sources within the energy mix, where some scenarios are more profitable then others.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"251 ","pages":"Article 112200"},"PeriodicalIF":4.2,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099808","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

Impact of cellulose contamination and flow velocity on dielectric properties of synthetic ester-based nanofluid 纤维素污染和流速对合成酯基纳米流体介电性能的影响

IF 4.2 3区工程技术

Electric Power Systems Research Pub Date : 2025-09-15 DOI: 10.1016/j.epsr.2025.112254

Hakim Subekti, I Made Yulistya Negara, Daniar Fahmi, Muhammad Fadlan Akbar, Reza Marabinga Putra, Iqbal Rizqullah

{"title":"Impact of cellulose contamination and flow velocity on dielectric properties of synthetic ester-based nanofluid","authors":"Hakim Subekti, I Made Yulistya Negara, Daniar Fahmi, Muhammad Fadlan Akbar, Reza Marabinga Putra, Iqbal Rizqullah","doi":"10.1016/j.epsr.2025.112254","DOIUrl":"10.1016/j.epsr.2025.112254","url":null,"abstract":"<div><div>This study proposed a novel investigation into the combined effects of fluid circulation velocity and cellulose particle contamination on the dielectric performance of insulating oils, a relationship that has been infrequently explored. A direct comparative analysis was conducted between pure synthetic esters and ester-based nanofluids (with 0.01 % TiO₂ nanoparticles). Dielectric characteristics were rigorously assessed using partial discharge (PD) tests and breakdown voltage (BDV) measurements under controlled conditions. Specifically, these tests were performed while systematically varying both the fluid circulation speed and the concentration of introduced cellulose contaminants, allowing for a direct comparison of their influence on both the pure ester and nanofluid. The experimental results clearly demonstrate the detrimental impact of cellulose particles on the dielectric strength. Conversely, increasing the fluid circulation speed consistently improved the dielectric performance, as evidenced by the higher PDIV and BDV values and lower discharge intensity across both fluid types. Furthermore, the ester-based nanofluid consistently exhibited superior dielectric properties compared to the pure ester under all tested conditions, suggesting the beneficial role of TiO₂ nanoparticles in mitigating the negative effects of cellulose contamination and enhancing the overall dielectric performance.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"251 ","pages":"Article 112254"},"PeriodicalIF":4.2,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145061086","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