International Journal of Electrical Power & Energy Systems最新文献_第2页

Research on single-phase grounding characteristics of low-resistance grounding systems with distributed generation 分布式电源低阻接地系统单相接地特性研究

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-27 DOI: 10.1016/j.ijepes.2025.111164

Jianwen Zhao , Fuyang Zeng

{"title":"Research on single-phase grounding characteristics of low-resistance grounding systems with distributed generation","authors":"Jianwen Zhao , Fuyang Zeng","doi":"10.1016/j.ijepes.2025.111164","DOIUrl":"10.1016/j.ijepes.2025.111164","url":null,"abstract":"<div><div>The network-level characteristics of zero-sequence currents during single-phase ground faults in existing low-resistance grounding systems with inverter-interfaced distributed generators (IIDGs) remain unclear. Moreover, the influence of IIDG integration on conventional staged zero-sequence current protection has yet to be thoroughly investigated. Research on these fault characteristics and the applicability of traditional protection schemes is essential for developing effective protection strategies in IIDG-integrated power systems aand holds considerable practical significance. This paper uses the symmetrical component method to analyze the steady-state characteristics of single-phase ground fault zero-sequence current both before and after IIDG connection, as well as the applicability of traditional stage-type zero-sequence current protection. The results indicate that when a fault occurs on a line with IIDG grid connection, the zero-sequence current between the fault point and the Point of Common Coupling increases, while the zero-sequence current on other lines decreases. Conversely, when the fault is on a line without an IIDG, the zero-sequence current on the upstream line of the IIDG grid connection point and the upstream line of the fault point increases, while the zero-sequence current on other lines decreases. Consequently, the sensitivity of the zero-sequence protection Segment I on some IIDG-connected lines is reduced, and there is a risk of maloperation in Segment I or II of certain protection devices during external faults. Finally, a sub-area protection method is proposed to improve.. the single-phase ground fault handling capability of IIDG-integrated power systems.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111164"},"PeriodicalIF":5.0,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159055","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 supercapacitor size minimization and energy management strategy for E-STATCOM connected to weak grid 弱电网E-STATCOM超级电容器尺寸最小化及能量管理策略

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-27 DOI: 10.1016/j.ijepes.2025.111174

Junyeol Maeng , Jisun Ham , Gayoung Park , Jaeyeon Park , Heng Wu , Jae-Jung Jung , Shenghui Cui

{"title":"A supercapacitor size minimization and energy management strategy for E-STATCOM connected to weak grid","authors":"Junyeol Maeng , Jisun Ham , Gayoung Park , Jaeyeon Park , Heng Wu , Jae-Jung Jung , Shenghui Cui","doi":"10.1016/j.ijepes.2025.111174","DOIUrl":"10.1016/j.ijepes.2025.111174","url":null,"abstract":"<div><div>Recently, the rapid integration of renewable energy sources has been reducing power system inertia, which threatens frequency stability. To address this issue, E-STATCOMs with supercapacitor-based energy storage have emerged as a persuasive solution, providing synthetic inertia in weak grids. This paper proposes a novel control methodology to minimize the size of supercapacitors for E-STATCOMs. Firstly, the embedded droop characteristics of virtual synchronous generator (VSG) control are quantitatively analyzed and eliminated, allowing the supercapacitor to store only the necessary energy. Additionally, the proposed supercapacitor energy management strategy tightly couples the stored energy with the VSG control. This enables the automatic management of supercapacitor energy while providing adequate inertial response. A small-signal stability analysis is also performed to ensure the stability of the system when the proposed control strategy is applied. Experimental results verify the effectiveness of the proposed method under various scenarios.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111174"},"PeriodicalIF":5.0,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159053","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

Hybrid HVAC/DC transmission capacity expansion planning considering large-scale renewable-based energy storage systems to mitigate network-associated flexibility insufficiency 考虑大规模可再生能源储能系统的混合HVAC/DC输电扩容规划，以缓解网络相关灵活性不足

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-27 DOI: 10.1016/j.ijepes.2025.111148

Mojtaba Shivaie

{"title":"Hybrid HVAC/DC transmission capacity expansion planning considering large-scale renewable-based energy storage systems to mitigate network-associated flexibility insufficiency","authors":"Mojtaba Shivaie","doi":"10.1016/j.ijepes.2025.111148","DOIUrl":"10.1016/j.ijepes.2025.111148","url":null,"abstract":"<div><div>This paper presents a new multi-period hybrid high-voltage alternating/direct current (HVAC/DC) model for transmission capacity expansion planning to address network-associated flexibility (NAF) insufficiency. For this purpose, the proposed model, from a new viewpoint, allows the reinforcement and/or installation of HVAC and multiterminal voltage source converter-based HVDC transmission lines, as well as the deployment of composite solar and wind farms (S&WFs) across the transmission network. Additionally, to offset the intermittency of composite S&WFs, large-scale compressed-air and subsurface hydrogen energy storage systems (C&HESSs) are integrated in coordination with these renewable farms. On this basis, two incommensurable objective functions, namely the net present values of the total investment and operation costs, as well as the congestion-caused NAF insufficiency measure, are considered, which are to be minimized simultaneously subject to a set of technical, operational, discrete logical, and financial constraints. The resulting non-convex mixed-integer nonlinear optimization problem is solved using a two-stage posterior implementation procedure, comprising a multi-objective symphony orchestra search algorithm to obtain the Pareto-front solutions, and a combination of fuzzy entropy weight and affiliation degree techniques to find the most preferred solution. The newly developed model is tested on the Iranian 400-kV transmission network, and its effectiveness and practicality are confirmed through comprehensive simulation studies.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111148"},"PeriodicalIF":5.0,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159054","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

Multiple microgrids intelligent energy management with capacity constraint using hybrid deep neural network and reinforcement learning 基于深度神经网络和强化学习的容量约束下多微电网智能能量管理

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-27 DOI: 10.1016/j.ijepes.2025.111179

B.Karim Sarmadi , Hossein Shayeghi , Seyedjalal Seyedshenava , Miadreza Shafie-khah

{"title":"Multiple microgrids intelligent energy management with capacity constraint using hybrid deep neural network and reinforcement learning","authors":"B.Karim Sarmadi , Hossein Shayeghi , Seyedjalal Seyedshenava , Miadreza Shafie-khah","doi":"10.1016/j.ijepes.2025.111179","DOIUrl":"10.1016/j.ijepes.2025.111179","url":null,"abstract":"<div><div>This paper presents a unified hybrid energy management framework for interconnected microgrid (MG) systems, combining deep neural networks (DNN), model-free reinforcement learning (RL), and cooperative game theory. The proposed method preserves MG privacy through deep learning models that infer behavior without accessing internal data. A model-free reinforcement learning strategy enables the system operator to dynamically adjust retail pricing in response to real-time system conditions. To ensure equitable cost distribution, a Shapley value-based mechanism allocates profits fairly, even to MGs that do not receive capacity allocation. The framework supports bidirectional energy exchange under Point of Common Coupling (PCC) capacity constraints. Simulation results on a large-scale testbed reveal that the model reduces average retail prices by 9.37% compared to the case without capacity constraints and by 3.81% relative to fixed-capacity scenarios. The results validate the framework’s effectiveness in balancing operational cost, pricing flexibility, and cooperative fairness among distributed MGs.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111179"},"PeriodicalIF":5.0,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145159051","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

Evaluation of electric vehicle consumption models based on real-world driving data 基于真实驾驶数据的电动汽车消费模型评价

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-26 DOI: 10.1016/j.ijepes.2025.111116

Daniele Martini, Seyed Mahdi Miraftabzadeh, Nicoletta Matera, Michela Longo, Sonia Leva

{"title":"Evaluation of electric vehicle consumption models based on real-world driving data","authors":"Daniele Martini, Seyed Mahdi Miraftabzadeh, Nicoletta Matera, Michela Longo, Sonia Leva","doi":"10.1016/j.ijepes.2025.111116","DOIUrl":"10.1016/j.ijepes.2025.111116","url":null,"abstract":"<div><div>As the adoption of Electric Vehicles (EVs) accelerates, understanding and accurately predicting EV energy consumption is essential for optimizing EV range, refining charging infrastructure, and improving overall efficiency. With advances in real-world data collection, this study evaluates seven distinct EV consumption models using driving data from a BMW i3 (60 Ah). The models were assessed based on assumptions, computational methods, and their ability to incorporate factors such as EV dynamics and environmental conditions. Performance metrics, including Mean Absolute Error (MAE), Root Mean Squared Error (RMSE), Symmetric Mean Absolute Percentage Error (SMAPE), and R-squared (R<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span>) were employed to compare model accuracy. The model incorporating detailed resistance forces and constant efficiency factors emerged as the most accurate across all metrics, demonstrating superior performance in predicting energy consumption. Conversely, a model incorporating key resistive forces and efficiency parameters while considering a minimum velocity threshold for power consumption showed the highest error rates. Furthermore, integrating machine learning techniques with physical models proved beneficial, enhancing predictive accuracy with the lowest SMAPE and capturing complex patterns in the data, achieving a balance between accuracy and interpretability. This research offers actionable insights into optimizing EV range, designing charging infrastructure, and improving energy efficiency modeling, providing a valuable reference for stakeholders in electric mobility and energy management. A key strength of this study is its systematic comparison of seven energy consumption models, using real-world driving data from a BMW i3 (60 Ah) to establish a new benchmark for EV energy modeling.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111116"},"PeriodicalIF":5.0,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158969","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

Power-frequency oscillation modeling, analysis and suppression of multi-VSG grid-connected system 多vsg并网系统工频振荡建模、分析与抑制

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-26 DOI: 10.1016/j.ijepes.2025.111129

Junming Li , Rongliang Shi , Zheng Dong , Junhui Li , Xing Zhang

{"title":"Power-frequency oscillation modeling, analysis and suppression of multi-VSG grid-connected system","authors":"Junming Li , Rongliang Shi , Zheng Dong , Junhui Li , Xing Zhang","doi":"10.1016/j.ijepes.2025.111129","DOIUrl":"10.1016/j.ijepes.2025.111129","url":null,"abstract":"<div><div>The virtual synchronous generator (VSG) enhances the inertia response of renewable energy system by mimicking traditional synchronous generators (TSG), but inherits the power-frequency oscillation issue of TSG. The grid impedance at the point of common coupling (PCC) leads to the interaction between VSG control loops, which complicates the dynamic performance of the multi-VSG grid-connected system. This paper investigates the modeling, analysis and suppression of the power-frequency oscillation for the multi-VSG grid-connected system. Initially, a mechanical admittance model of the multi-VSG grid-connected system is developed based on the electromechanical analogy principle, and the transfer functions under various disturbances are derived. Subsequently, the frequency-domain response of the transfer function is compared and analyzed with the simulation results to reveal the power-frequency oscillation behavior of the multi-VSG grid-connected system under varying system parameters. Finally, a power-frequency oscillation suppression strategy for the multi-VSG grid-connected system, based on active power feedforward compensation (APFC), is proposed in alignment with its oscillation characteristics, and the design parameters are provided. The efficacy of the proposed oscillation suppression strategy is validated through MATLAB/Simulink simulation and experimental testing.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111129"},"PeriodicalIF":5.0,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158839","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

Coordinated control strategy for MMC-CLCC considering AC voltage support and active power transmission 考虑交流电压支持和有功传输的MMC-CLCC协调控制策略

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-26 DOI: 10.1016/j.ijepes.2025.111185

Weiru Wang, Yanhui Guo, Yechun Xin, Guoqing Li, Tuo Wang, Yanxu Wang

{"title":"Coordinated control strategy for MMC-CLCC considering AC voltage support and active power transmission","authors":"Weiru Wang, Yanhui Guo, Yechun Xin, Guoqing Li, Tuo Wang, Yanxu Wang","doi":"10.1016/j.ijepes.2025.111185","DOIUrl":"10.1016/j.ijepes.2025.111185","url":null,"abstract":"<div><div><ul><li><span></span><span><div>The hybrid HVDC transmission system employing the Modular Multilevel Converter (MMC) at the sending end and the Controllable Line-Commutated Converter (CLCC) at the receiving end offers advantages such as avoiding commutation failures and providing reactive power support to the sending end, thus holding promising application prospects. This paper analyzes the dynamic process of MMC and CLCC under receiving-end AC faults, as well as the power characteristics of the CLCC. It determines operational ranges of DC current, active power, and reactive power under fault conditions, and proposes a coordinated control strategy for MMC and CLCC that addresses both AC voltage support and DC power transmission. This strategy introduces reactive power sensitivity constraints to determine the reduction amount of the CLCC’s extinction angle. Meanwhile, the rectifier side calculates the maximum operating points of DC current and active power based on extinction angle command and the receiving-end AC voltage magnitude to control the DC current. Finally, two cases of three-phase short-circuit faults with different severities in the receiving-end AC system are simulated using PSCAD/EMTDC. The simulation results verify that the proposed coordinated control strategy can provide support for receiving-end AC system during fault period and ensure DC power transmission capability.</div></span></li></ul></div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111185"},"PeriodicalIF":5.0,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158967","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 sequential Attacker-Defender game for distribution systems resilience enhancement against extreme weather events 一个连续的攻击-防御游戏分配系统弹性增强对极端天气事件

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-26 DOI: 10.1016/j.ijepes.2025.111184

Xiaofei Wang , Weijia Liu , Mengmeng Cai , Fei Ding , Junbo Zhao , Xinxuan Zhang

{"title":"A sequential Attacker-Defender game for distribution systems resilience enhancement against extreme weather events","authors":"Xiaofei Wang , Weijia Liu , Mengmeng Cai , Fei Ding , Junbo Zhao , Xinxuan Zhang","doi":"10.1016/j.ijepes.2025.111184","DOIUrl":"10.1016/j.ijepes.2025.111184","url":null,"abstract":"<div><div>Improving distribution system resilience against frequent extreme weather events is important for reliable power system operations. Especially when dealing with events such as hurricanes that have short-term predictions, proactive pre-event preparedness plays a vital role in system resilience performance. In this paper, we propose a novel approach to construct pre-event resource allocation plans for system operators to cope with upcoming threats through a sequential attacker-defender game framework. The sequential attacker-defender game is designed to model the interaction between the extreme weather and the system operator. In each round of the game, the attacker and the defender sequentially update their current strategies by accounting for the opponent’s action set. The attacker model is formulated as a bi-level problem to identify the severe outage scenarios, and the defender model is formulated as a two-stage optimization problem to determine the allocation of restoration resources including mobile responsive resources and repair crews. Two scale-reduction strategies are proposed to ensure the scalability of the game scheme. Finally, case studies on the IEEE 33-bus and a 7149-node practical utility system validate the effectiveness of the proposed sequential game and the efficiency of the scale-reduction strategies.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111184"},"PeriodicalIF":5.0,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158968","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

An optimal model predictive control based on Hammerstein model considering fatigue load reduction for wind turbines 基于Hammerstein模型考虑疲劳减载的风电机组最优模型预测控制

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-25 DOI: 10.1016/j.ijepes.2025.111132

Lei Fu, Yixiao Gao, Shuhao Cheng, Changhao Guo, Jia Liu

{"title":"An optimal model predictive control based on Hammerstein model considering fatigue load reduction for wind turbines","authors":"Lei Fu, Yixiao Gao, Shuhao Cheng, Changhao Guo, Jia Liu","doi":"10.1016/j.ijepes.2025.111132","DOIUrl":"10.1016/j.ijepes.2025.111132","url":null,"abstract":"<div><div>The development of wind energy challenges to the wind power operation and maintenance for wind turbines (WTs). Previous research is usually limited to the maximum power tracking. However, because of the strong non-linearity and high uncertainty of WT, the fatigue load cannot be ignored. To address these, this paper proposes an optimal cooperative control for WTs, which is defined as Hammerstein-based model predictive control (HMPC). First, a Hammerstein structure is proposed to approximate the nonlinear static and linear dynamic behavior of WTs for linearization. Then, a model predictive control framework is designed by adjusting the generator torque and pitch angle simultaneously. Moreover, to solve the multi-objective optimization problem, a quadratic cost function is given by considering the power reference tracking, control action smoothing, and fatigue load suppression. Several simulations are conducted under different operating conditions. Compared with other MPC-based strategies, the results confirm that the proposed HMPC provides a robust dynamic response to changes in wind disturbance.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111132"},"PeriodicalIF":5.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158974","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

Fault section location of collector lines based on phase comparison of zero-sequence current using the Kaiser window 基于Kaiser窗口零序电流相位比较的集电极线路故障区段定位

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-25 DOI: 10.1016/j.ijepes.2025.111043

Yue Dai , Hongchun Shu , Cheng Guan , Yutao Tang , Yiming Han

{"title":"Fault section location of collector lines based on phase comparison of zero-sequence current using the Kaiser window","authors":"Yue Dai , Hongchun Shu , Cheng Guan , Yutao Tang , Yiming Han","doi":"10.1016/j.ijepes.2025.111043","DOIUrl":"10.1016/j.ijepes.2025.111043","url":null,"abstract":"<div><div>To address the limitations of existing single-phase grounding fault location methods for collector lines in wind farms, especially their insufficient adaptability to multi-branch topologies, this paper proposes a fault section location method based on phasor comparison using Kaiser windowed Fast Fourier Transform (FFT). Collector lines in large-scale wind farms generally exhibit a multi-branch topological layout similar to traditional radial distribution networks, and existing methods are limited in terms of positioning accuracy and reliability under such complex structures. Analysis shows that when a single-phase grounding fault occurs in a section or branch of the collector line, there are significant phasor differences between the faulty section and healthy sections, as well as between the faulty branch and healthy branches. Utilizing this feature, this paper adopts the Kaiser windowed FFT algorithm, which effectively suppresses spectral leakage, to calculate the mean value of phasor difference sequences between measurement points, establishes fault discrimination criteria, and achieves accurate location of faulty sections and branches. Simulation verification demonstrates that the proposed method has good adaptability to multi-branch collector lines and can significantly improve the accuracy of fault location.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111043"},"PeriodicalIF":5.0,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145158973","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