Electric Power Systems Research最新文献

Enhancing grid versatility: Role of thermostatically controlled loads in virtual energy storage systems

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-19 DOI: 10.1016/j.epsr.2025.111602

Praveenkumar Rajendiran, Vijayakumar Krishnasamy

{"title":"Enhancing grid versatility: Role of thermostatically controlled loads in virtual energy storage systems","authors":"Praveenkumar Rajendiran, Vijayakumar Krishnasamy","doi":"10.1016/j.epsr.2025.111602","DOIUrl":"10.1016/j.epsr.2025.111602","url":null,"abstract":"<div><div>Increasing electricity demand leads to a rise in power generation, particularly during peak hours, making it challenging to balance supply and demand. This often results in a mismatch between electricity production and consumption. Renewable energy sources (RES) generate electricity, but their intermittent nature limits effectiveness during peak demand periods. Excess energy from RES is stored in energy storage systems (ESS) that can be used during high-demand times, yet their capacity is limited. Large-scale storage is necessitated because of growing demand, which results in high capital costs and lowered lifespan, increasing the complications in bringing equilibrium between power generation and distribution. Demand response management (DRM) is a viable alternative method, which shifts the non-essential electrical loads to off-peak periods to reduce demand. Air Conditioners (ACs) and refrigerators are under thermostatically controlled loads (TCLs) to form a virtual energy storage system (VESS) and serve the purpose of DRM. VESS, along with DRM, optimizes energy usage instead of increasing supply. Although methods like linear regression, support vector machines, and neural networks have been explored for energy prediction, they often struggle with the complexities of TCLs behavior, especially under dynamic grid conditions. This study proposes a novel gradient-boosted neural networks (GBNN) model designed to more accurately predict TCLs self-discharge capacity, offering a more reliable solution for energy optimization and grid management. The proposed GBNN model achieves higher accuracy, as evidenced by a lower root mean square error (RMSE) of <span><math><mrow><mn>4</mn><mo>.</mo><mn>34</mn><mo>×</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mo>−</mo><mn>5</mn></mrow></msup></mrow></math></span> and a higher coefficient of performance (<span><math><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup></math></span>) of 0.9966.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111602"},"PeriodicalIF":3.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643131","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

Wavelet-based time-domain double-fed induction generator differential protection

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-19 DOI: 10.1016/j.epsr.2025.111622

R.P. Medeiros , L.S. Barros , F.B. Costa , F.E.V. Taveiros

{"title":"Wavelet-based time-domain double-fed induction generator differential protection","authors":"R.P. Medeiros , L.S. Barros , F.B. Costa , F.E.V. Taveiros","doi":"10.1016/j.epsr.2025.111622","DOIUrl":"10.1016/j.epsr.2025.111622","url":null,"abstract":"<div><div>Double-fed induction generators (DFIGs) must remain connected to the grid for a specific time during faults on the grid but must be immediately disconnected during short circuits inside of their protection zone, such as faults in the stator or rotor windings, to reduce potential damage risks. Currently, there is no reliable solution to discern whether a fault is external or internal to the DFIG protection zone. The differential protection appears suitable for this purpose, yet few studies have applied this protection to DFIGs. Additionally, there is insufficient evidence regarding the effectiveness of differential protection schemes in detecting faults in DFIG. This paper introduces a new algorithm for protecting the DFIG in the time domain using wavelets. The method utilizes high- and low-frequency components of the stator and rotor currents on the d- and q-axis to offer fast and dependable protection for the DFIG. The proposed approach was compared to existing differential protection regarding success rate and average response time across various events, including faults on the grid and turn-to-turn faults on the stator and rotor. The results indicate that the proposed protection outperforms the existing one and is the fastest in detecting turn-to-turn faults on the stator and rotor windings.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111622"},"PeriodicalIF":3.3,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643132","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

Optimizing power quality and placement of EV charging stations in a DC grid with PV-BESS using hybrid DOA-CHGNN approach

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-18 DOI: 10.1016/j.epsr.2025.111595

C.S. Subash Kumar , R. Saravanan , S. Sankarakumar , G. Srinivas

{"title":"Optimizing power quality and placement of EV charging stations in a DC grid with PV-BESS using hybrid DOA-CHGNN approach","authors":"C.S. Subash Kumar , R. Saravanan , S. Sankarakumar , G. Srinivas","doi":"10.1016/j.epsr.2025.111595","DOIUrl":"10.1016/j.epsr.2025.111595","url":null,"abstract":"<div><div>Electric vehicle battery chargers have power electronic transformers, which causes significant distortions in electrical energy obtained from distribution system and numerous issues with power quality. This paper presents a hybrid method for optimizing energy quality and placement of Electric VehicleCharging Stations (EVCS) with Photovoltaic with Battery Energy Storage System (PV-BESS) in DC grids. The proposed method combines Dollmaker Optimization Algorithm (DOA) and Contrastive Hyper graph Neural network (CHGNN), referred as DOA-CHGNN technique. The primary goal of proposed strategy is to reduce voltage drop, Total Harmonic Distortion (THD) and increase system's efficiency. The DOA method is used to enhance assignment of EVCS in delivery system. The CHGNN method is utilized to predict the EV load. The MATLAB environment is used to assess and compare the proposed method with other existing techniques. The proposed approach determines betterfindings compared to existing methods like Jellyfish Search Algorithm (JSA), Hybridized Whale Particle Swarm Optimization (HWPSO) and Deep Neural Network (DNN). The proposed methods achieves a THD of 0.9 %, Total cost of 5,520,000$, the execution time of 0.41 s and an efficiency of 98 %.The proposed DOA-CHGNN method outperforms existing techniques, achieving improved THD, higher efficiency, and lower costs in optimizing EVCS placement with PV-BESS in DC grids.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111595"},"PeriodicalIF":3.3,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643124","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

FPGA-Based modelling and embedded real-time simulation of low-voltage DC distribution system with multiple DESs

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-18 DOI: 10.1016/j.epsr.2025.111621

Shouxiang Wang , Chunyu Zhang , Qianyu Zhao

{"title":"FPGA-Based modelling and embedded real-time simulation of low-voltage DC distribution system with multiple DESs","authors":"Shouxiang Wang , Chunyu Zhang , Qianyu Zhao","doi":"10.1016/j.epsr.2025.111621","DOIUrl":"10.1016/j.epsr.2025.111621","url":null,"abstract":"<div><div>Due to the complicated structure and vast number of components, the embedded real-time simulation of low-voltage DC (LVDC) distribution system with multiple distributed energy sources (DESs) has higher requirements on integration and efficiency. To this end, this paper develops an embedded real-time simulator for LVDC distribution system using field-programmable gate arrays (FPGA). Firstly, the entire simulation system is decomposed into several parallel subsystems, and the complex operations in each subsystem are fully factorized by adopting Algorithm Architecture Adequation (AAA) methodology. It ensures the computational efficiency of the simulator and reduces the impact of internal resource constraints on simulation scale and accuracy. Next, a novel FPGA-based real-time hierarchical distributed power management system (DPMS) considering the characteristics of different DESs is built. It makes full use of the parallel computing performance of FPGA to maintain the stable operation of the simulation system. Accordingly, the actual LVDC distribution system operating conditions can be presented more comprehensively, extending the application field of the developed simulator. For instance, it can be integrated into the control loop alongside a system-level controller or optimizer to observe, evaluate or predict the state information of the controlled system in real time for them, thereby enhancing the perception of the controller or optimizer. Then the embedded real-time simulator for a LVDC distribution system with a simulation step size of 2μs is achieved in a single FPGA. Lastly, several typical case studies show that the 2-norm relative errors of the computed results of the simulator are <1e-3, which validate the numerical performance and accuracy of the developed simulator.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111621"},"PeriodicalIF":3.3,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643125","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

Adaptive memory event-triggered load frequency control for multiarea power systems with non-ideal communication channel

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-18 DOI: 10.1016/j.epsr.2025.111596

Wei Qian , Di Lu , Yanmin Wu

{"title":"Adaptive memory event-triggered load frequency control for multiarea power systems with non-ideal communication channel","authors":"Wei Qian , Di Lu , Yanmin Wu","doi":"10.1016/j.epsr.2025.111596","DOIUrl":"10.1016/j.epsr.2025.111596","url":null,"abstract":"<div><div>This paper deals with the load frequency control (LFC) issue for multi-area power systems with non-ideal communication channel based on adaptive memory event-triggered (AMET) mechanism. Firstly, by considering frequency regulation resources such as wind turbines, solar power generation, and electric vehicles, a novel power system model is established. Secondly, to effectively reduce the utilization of limited network resources form sensor to the controller, an AMET mechanism is proposed, which allows for flexible updating of the event-triggered threshold in accordance with the current sampling information and historical data, so as to improve the data transmission rate at the vertex of system response curve and achieve better control performance. Then, in view of the complexity of the actual communication network environment, a non-ideal communication channel incorporating communication delays and fading measurements, which respectively characterized by Bernoulli random variables and time-varying random processes is embraced in the LFC mathematical model. By the aid of Lyapunov theory, the asymptotic mean-square stability of the LFC system under a given <span><math><msub><mrow><mi>H</mi></mrow><mrow><mi>∞</mi></mrow></msub></math></span> performance index is proved. Finally, two simulation cases are presented to demonstrate the effectiveness of the proposed control strategy.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111596"},"PeriodicalIF":3.3,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643130","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 modified point estimate-based probabilistic load flow approach for improving tail accuracy in wind-integrated power systems 改进风电一体化电力系统尾部精度的基于点估计的概率负荷流修正方法

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-18 DOI: 10.1016/j.epsr.2025.111606

Vikas Singh, Tukaram Moger, Debashisha Jena

{"title":"A modified point estimate-based probabilistic load flow approach for improving tail accuracy in wind-integrated power systems","authors":"Vikas Singh, Tukaram Moger, Debashisha Jena","doi":"10.1016/j.epsr.2025.111606","DOIUrl":"10.1016/j.epsr.2025.111606","url":null,"abstract":"<div><div>Modern power systems confront risks, including demand variations and forced outages of traditional generators. Moreover, the extensive grid integration of new energy generation has exacerbated the uncertainty because of its intermittent nature. The Hong’s three-point estimation method (3PEM) for performing probabilistic load flow (PLF) is commonly used to cope with power system uncertainties; however, it has poor tail accuracy. To overcome this issue, the basic 3PEM is modified by adding a new pair of tail points. This modified 3PEM (MH3PEM) is equivalent to 5PEM but utilize reduced order moments. Also, a hybrid Hong-Harr PEM approach is proposed to efficiently deal with a mixture of independent and correlated input variables. The input variables’ correlation is modeled using the Nataf transformation. The proposed approaches are tested on wind farm-integrated 24-bus and 72-bus equivalent systems, and their findings are compared with the fundamental PEM schemes. Utilizing the Monte-Carlo simulation as a reference, the MH3PEM provides the most accurate results with a low computational burden.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111606"},"PeriodicalIF":3.3,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637706","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

Analysis of the impact of PLLs on stable power swings in presence of Grid Following PV

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-18 DOI: 10.1016/j.epsr.2025.111593

Meenu Jayamohan , H.R. Sai Kiran Pandit , Sarasij Das , Sukumar Brahma

{"title":"Analysis of the impact of PLLs on stable power swings in presence of Grid Following PV","authors":"Meenu Jayamohan , H.R. Sai Kiran Pandit , Sarasij Das , Sukumar Brahma","doi":"10.1016/j.epsr.2025.111593","DOIUrl":"10.1016/j.epsr.2025.111593","url":null,"abstract":"<div><div>The transition from Synchronous Generators (SGs) to Inverter-Based Resources (IBRs) has resulted in a wide array of problems in power systems. The dynamics of IBRs differ from the dynamics of SGs, which has impacted the impedance (<span><math><mi>Z</mi></math></span>) trajectories seen by the distance relays during stable and unstable power swings. This study analyzes the impacts of different types of Phase-Locked Loops (PLLs) of Grid Following (GFOL) photovoltaic (PV) inverters on the magnitude of the rate of change of positive sequence impedance used for detecting Stable Power Swings (SPS). The variations of <span><math><mi>Z</mi></math></span> trajectories with respect to the changes in control parameters of Synchronous Reference Frame PLL with additional Low pass filter (LSRF PLL), Multiple Reference Frame (MRF) PLL, and Dual Second-Order Generalized Integrator (DSOGI) PLL are also studied. The impacts of varying penetration of PV and relay locations are also investigated. A modified IEEE-39 bus system with GFOL PV is utilized for the studies. The PVs adhere to IEEE Standard <span><math><mrow><mn>2800</mn><mo>−</mo><mn>2022</mn></mrow></math></span> and have Low Voltage Ride-Through (LVRT)/ High Voltage Ride-Through (HVRT) and dynamic voltage support capabilities. This study shows that the PLL parameters and bandwidth influence the operation/maloperation of the relays during SPS. Time-domain simulation results from PSCAD are validated with theoretical analysis.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111593"},"PeriodicalIF":3.3,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143643129","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

Mission-critical microgrids: Strategies for safe and reliable operations

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-17 DOI: 10.1016/j.epsr.2025.111625

Amiron Wolff dos Santos Serra , Hércules Araújo Oliveira , Luiz Antonio de Souza Ribeiro , José Gomes de Matos , Alexandre Cunha Oliveira , Osvaldo Ronald Saavedra

{"title":"Mission-critical microgrids: Strategies for safe and reliable operations","authors":"Amiron Wolff dos Santos Serra , Hércules Araújo Oliveira , Luiz Antonio de Souza Ribeiro , José Gomes de Matos , Alexandre Cunha Oliveira , Osvaldo Ronald Saavedra","doi":"10.1016/j.epsr.2025.111625","DOIUrl":"10.1016/j.epsr.2025.111625","url":null,"abstract":"<div><div>This article details the design and real-world implementation of a mission-critical microgrid for an aerospace rocket launch center. The project focuses on ensuring energy security and reliability during launch operations, while also prioritizing emission reductions during non-operational periods. This paper makes significant contributions by identifying and addressing key challenges in the seamless integration and implementation of critical functionalities within microgrids, ensuring their reliable operation across various scenarios such as island capability and black-start operation. Key challenges including the mitigation of transformer inrush currents, fault detection in an ungrounded system, and power balance during off-grid operation have been successfully solved. The microgrid has been operational since June 2023. Experimental results from the commissioning phase are also included, which confirm the design's effectiveness in ensuring energy security and significantly reducing CO<sub>2</sub> emissions.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111625"},"PeriodicalIF":3.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637219","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

AI-driven single-end partial discharge localization in power cables based on time domain reflectometry and transfer function analyses

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-17 DOI: 10.1016/j.epsr.2025.111601

Morteza Shamsoddini , Tongkun Lan , Seokbum Ko , Chi Yung Chung

{"title":"AI-driven single-end partial discharge localization in power cables based on time domain reflectometry and transfer function analyses","authors":"Morteza Shamsoddini , Tongkun Lan , Seokbum Ko , Chi Yung Chung","doi":"10.1016/j.epsr.2025.111601","DOIUrl":"10.1016/j.epsr.2025.111601","url":null,"abstract":"<div><div>Accurate localization of partial discharge (PD) in power cables is critical for minimizing downtime and associated costs. Therefore, this paper presents a single-end localization method that simplifies implementation by avoiding the complexities of double-sided or distributed schemes. A fundamental challenge for online monitoring systems based on a single-end measurement scheme is the accurate and autonomous identification of incident pulses and their corresponding reflections, particularly in environments where impulse noise and PD-like interference are present and may resemble actual PD pulses, making it difficult to distinguish true events from interfering pulses. In this regard, this paper proposes a method based on the traveling wave characteristics and transfer function (TF) analysis to pinpoint the PD source accurately, even in challenging conditions such as multi-path propagation, impulse noise, and simultaneous PD events. To achieve this, a cable-specific attenuation characteristic is developed and incorporated within a two-step signal segmentation algorithm, and then the U-Net model is employed to estimate PD pulses’ arrival time precisely. Additionally, the proposed method provides a statistical analysis of its maximum localization capability based on the noise level and cable length. The performance of the method is assessed under both homogeneous and inhomogeneous cable configurations. The results demonstrate a localization error of less than 1% for a 1.5 km cable.</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111601"},"PeriodicalIF":3.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Faulty feeder identification under high impedance faults for flexible grounding distribution system based on leakage resistance identification

IF 3.3 3区工程技术

Electric Power Systems Research Pub Date : 2025-03-17 DOI: 10.1016/j.epsr.2025.111604

Xinqian Wang , Xiaowei Wang , Wenquan Shao , Fan Zhang , Jie Gao , Zhihua Zhang , Yizhao Wang

{"title":"Faulty feeder identification under high impedance faults for flexible grounding distribution system based on leakage resistance identification","authors":"Xinqian Wang , Xiaowei Wang , Wenquan Shao , Fan Zhang , Jie Gao , Zhihua Zhang , Yizhao Wang","doi":"10.1016/j.epsr.2025.111604","DOIUrl":"10.1016/j.epsr.2025.111604","url":null,"abstract":"<div><div>To address the challenge of identifying faulty feeder in the case of high impedance faults (HIF) within a flexible grounding system that employs parallel small resistance (PSR) from the arc suppression coil, this paper proposes a method for faulty feeder identification based on leakage resistance identification. Initially, the paper analyzes the variation characteristics of the equivalent resistance to ground (ERG), while taking into consideration the leakage resistance in the distribution line. For the healthy feeder, the ERG is always equal to its leakage resistance. In contrast, for a faulty feeder, the ERG is determined by paralleling the leakage resistances of all healthy feeders before the PSR is put into use, However, it becomes approximately three times greater than the neutral resistance once the PSR is in use. Subsequently, the ERG of each feeder is fitted using the least squares method, and a scheme for identifying faulty feeders is constructed. The effectiveness of this proposed method is ultimately validated through PSCAD simulations and field recording data, demonstrating that the transition resistance can reach up to 5000Ω, which is anticipated to enhance the performance of protection for single-phase-to-ground fault (SPGF).</div></div>","PeriodicalId":50547,"journal":{"name":"Electric Power Systems Research","volume":"245 ","pages":"Article 111604"},"PeriodicalIF":3.3,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143637224","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