International Journal of Electrical Power & Energy Systems最新文献_第10页

Neighborhood-perturbed and nonlinearly enhanced whale optimization for high-precision trajectory tracking and stability control in four-steering-wheel AGVs 基于邻域摄动和非线性增强鲸鱼优化的四方向盘agv高精度轨迹跟踪与稳定性控制

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-11 DOI: 10.1016/j.ijepes.2025.111048

Chunfang Li , Yuqi Yao , Xinyang Liu , Xinming Zhang , Linsen Song , Yiwen Zhang , Jingru Liu , Lei Gong

{"title":"Neighborhood-perturbed and nonlinearly enhanced whale optimization for high-precision trajectory tracking and stability control in four-steering-wheel AGVs","authors":"Chunfang Li , Yuqi Yao , Xinyang Liu , Xinming Zhang , Linsen Song , Yiwen Zhang , Jingru Liu , Lei Gong","doi":"10.1016/j.ijepes.2025.111048","DOIUrl":"10.1016/j.ijepes.2025.111048","url":null,"abstract":"<div><div>This study proposes an integrated control strategy combining a nonlinear multi-swarm improved spiral whale optimization algorithm (nMISWOA) with PID control to enhance trajectory tracking and stability for heavy-duty four-steering-wheel AGVs in complex industrial environments. First, significant enhancements were introduced to the conventional whale optimization algorithm through the incorporation of cubic chaotic mapping, adaptive random factors, and neighborhood perturbation mechanisms, effectively improving initial population diversity, exploration–exploitation balance, and local convergence performance. Second, a dual-layer optimization control architecture based on nMISWOA-PID was constructed in conjunction with an enhanced nonlinear dynamic model of four-steering-wheel AGVs. This framework enables adaptive parameter tuning and dynamic compensation for the controller. Simulations on CEC 2022 benchmarks show nMISWOA outperforms five peers (WOA, GGO, GWO, MFO, SSA) in convergence accuracy, variance, and optimal solutions, particularly in 20-dimensional problems. The nMISWOA-PID controller reduced overshoot by over 30% in step response tests compared to other algorithm-based controllers. Physical experiments demonstrated over 20% lower tracking error and 12.87% higher positioning accuracy versus industry standards. The proposed strategy provides theoretical and practical foundations for deploying high-load AGVs in complex scenarios.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111048"},"PeriodicalIF":5.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049218","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

Investigation into the online measurement technique for critical parameters of the on-load tap changer 有载分接开关关键参数在线测量技术研究

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-11 DOI: 10.1016/j.ijepes.2025.111079

Dongdong Song, Lijun Geng, Zhendong Liu, Zheng Liu, Tianjin Wang

{"title":"Investigation into the online measurement technique for critical parameters of the on-load tap changer","authors":"Dongdong Song, Lijun Geng, Zhendong Liu, Zheng Liu, Tianjin Wang","doi":"10.1016/j.ijepes.2025.111079","DOIUrl":"10.1016/j.ijepes.2025.111079","url":null,"abstract":"<div><div>The on-load tap changer (OLTC), widely used as a voltage regulation device in power systems, requires regular assessment and maintenance to ensure reliable operation and avoid adverse impacts on the power system. These assessments encompass key parameters such as transition waveform, transition time, three-phase synchronization, and transition resistor, along with the operational status of the mechanical structure. However, the maintenance process, typically conducted offline, can diminish equipment efficiency. Moreover, the accuracy of some parameter measurements needs improvement. To bolster equipment reliability and refine detection methods for critical parameters, this study explores online detection techniques for key switching parameters of the OLTC body. This paper proposes a method to identify these key parameters in the switching circuit, using coordinate transformation as the core algorithm. We used a specific vacuum OLTC device for our research, conducted theoretical analyses, developed a simulation model to validate the proposed method for identifying OLTC switching parameters, and further built a test platform to verify the algorithm’s effectiveness. The results show a close alignment between simulation and actual measurement outcomes. Each switching process interval conforms to the manufacturer’s design specifications for the equipment, with the transition resistor parameter calculation accuracy ranging from approximately 95.39% to 100%. Similarly, the tap winding voltage calculation accuracy is between approximately 91.52% and 100%, satisfying engineering requirements and enterprise standard [<span><span>1</span></span>]. This method provides a basis for optimizing the measurement of working parameters in OLTC equipment and aims to offer ideas for the next step of prototype development.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111079"},"PeriodicalIF":5.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049220","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

Transient characteristic of mode-conversion strategy for pumped storage machines based on eco-friendly generator circuit breaker and phase reversal disconnecting switch 基于环保发电机断路器和反相断路开关的抽水蓄能机换模策略暂态特性研究

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-11 DOI: 10.1016/j.ijepes.2025.111034

Weijie Wen , Tiewei Hu , Jinghan Fan , Bin Li , Zhihao Zhu

{"title":"Transient characteristic of mode-conversion strategy for pumped storage machines based on eco-friendly generator circuit breaker and phase reversal disconnecting switch","authors":"Weijie Wen , Tiewei Hu , Jinghan Fan , Bin Li , Zhihao Zhu","doi":"10.1016/j.ijepes.2025.111034","DOIUrl":"10.1016/j.ijepes.2025.111034","url":null,"abstract":"<div><div>The generator circuit breaker is a special breaker located between apumped storage machine and astep-up transformer. The first requirement for generator circuit breaker is to interrupt fault currents with delayed current zero, preventing the damage of pumped storage machine and transformer caused by fault current. The second requirement for generator circuit breaker is to interrupt load current frequently, realizing the frequent mode conversion of pumped storage machine from generator-mode to motor-mode. Up to now, SF<sub>6</sub> gas which is a potent greenhouse gas has been widely used in large-capacity generator circuit breaker. To seek eco-friendly alternatives of generator circuit breaker, thecontributions of this paper are: (1) an eco-friendly generator circuit breaker based on afast vacuum switch and apower electronic damping module is proposed in this paper. (2) Considering fast vacuum switch has ashort mechanical operating life (2000 ∼ 5000 operations), to avoid the operating of fast vacuum switch in generator circuit breaker, a mode-conversion strategy based on the cooperation of power electronic damping module in eco-friendly generator circuit breaker and phase reversal disconnecting switch is proposed in this paper. Through the analysis of voltage phasors, the transient characteristics of the mode-conversion strategy are revealed to demonstrate the applicable scope of the proposed mode-conversion strategy for pumped storage machine. Simulation verifications are elaborated in PSCAD.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111034"},"PeriodicalIF":5.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049933","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

Two-stage robust voltage/var control strategy of active distribution networks with hybrid distribution transformers 混合配电变压器有源配电网的两级鲁棒电压/无功控制策略

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-11 DOI: 10.1016/j.ijepes.2025.111077

Yanting Xue , Yibin Liu , Qidong Wen , Yuanhang Zhang , Mingyang Mei , Lianchao Yu , Lishi Zhang , Deliang Liang

{"title":"Two-stage robust voltage/var control strategy of active distribution networks with hybrid distribution transformers","authors":"Yanting Xue , Yibin Liu , Qidong Wen , Yuanhang Zhang , Mingyang Mei , Lianchao Yu , Lishi Zhang , Deliang Liang","doi":"10.1016/j.ijepes.2025.111077","DOIUrl":"10.1016/j.ijepes.2025.111077","url":null,"abstract":"<div><div>This paper addresses the challenge of integrating Hybrid Distribution Transformers (HDTs) into the unbalanced Active Distribution Networks (ADNs). A two-stage robust VVC strategy is proposed to coordinate the operation of HDTs with a full spectrum of existing grid assets, including legacy devices such as on-load tap changers (OLTCs) and capacitor banks (CBs), and other flexible resources like Energy Storage Systems (ESS) and Demand Response (DR). The first stage determines a robust day-ahead schedule for slow-acting resources (OLTCs, CBs, ESS, DR), while the second stage performs real-time adjustments of HDTs to counteract uncertainties from PV generation and load demand. An accurate HDT power injection model, based on the auxiliary branch method, is developed to ensure modeling fidelity by incorporating internal impedance and series converter dynamics. The framework is built upon the coupled-phase second-order cone programming branch flow model (CP-SOCP-BFM) to accurately manage the network’s three-phase unbalance. To solve the resulting large-scale, non-convex problem, a computationally efficient solution framework combining the Inexact Column-and-Constraint Generation (i-CCG) algorithm and the Alternating Optimization Procedure (AOP) is proposed, which guarantees robust global optimality. The effectiveness of the proposed strategy is validated on a modified IEEE 33-bus system. Comprehensive comparative studies demonstrate its superiority over deterministic, heuristic-based, and standard robust optimization methods in terms of both robustness and computational efficiency.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111077"},"PeriodicalIF":5.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049216","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

Enhanced Kopplin models for incipient faults in underground power cables 地下电力电缆早期故障的改进Kopplin模型

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-11 DOI: 10.1016/j.ijepes.2025.111071

Zahra Hosseini , Haidar Samet , Masoud Jalil , Teymoor Ghanbari , Mehdi Allahbakhshi

{"title":"Enhanced Kopplin models for incipient faults in underground power cables","authors":"Zahra Hosseini , Haidar Samet , Masoud Jalil , Teymoor Ghanbari , Mehdi Allahbakhshi","doi":"10.1016/j.ijepes.2025.111071","DOIUrl":"10.1016/j.ijepes.2025.111071","url":null,"abstract":"<div><div>The incipient faults (IFs) in underground power cables (UPCs) are primarily caused by insulation failure in power cables, defects in splices, and water penetration. IF modeling is crucial for generating data under various conditions to ensure the performance and accuracy of algorithms in IF detection. This paper aims to establish and develop a robust yet practical model for IFs, utilizing real data. Practical records obtained from a laboratory are utilized in the process of identifying the models. Although many papers have been presented on arc modeling in other applications, none have been dedicated to modeling the IF in UPCs, except for two papers published by the authors of this paper. However, this paper presents the third model based on the time-varying property of the IF. This paper focuses on developing effective models based on Kopplin equations. Therefore, two modified Kopplin models are presented for modeling the IFs, and both proposed models demonstrate exemplary performance in modeling this fault. In the proposed models, the concept of time-varying coefficients is employed to illustrate the time-varying properties of IFs. Also, the new approach in this study, which utilizes the Levenberg-Marquardt algorithm, updates the model coefficients for each cycle. Finally, for robustness, the proposed models were evaluated using two error indices, which yielded low error indices. Since the model coefficients change in every cycle, to demonstrate their stochastic behavior, probability distribution functions (PDFs) were employed. Consequently, for every set of models’ coefficients, several PDFs are tested, and the PDF with the best match to real data is selected.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111071"},"PeriodicalIF":5.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049934","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

Analysis and protection of valve-side faults in offshore bipolar MMC-HVDC systems based on active neutral voltage shift 基于中性点主动移位的海上双极MMC-HVDC阀侧故障分析与保护

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-11 DOI: 10.1016/j.ijepes.2025.111089

Haihan Ye , Wu Chen , Hongchun Yuan , Junyi Zheng

{"title":"Analysis and protection of valve-side faults in offshore bipolar MMC-HVDC systems based on active neutral voltage shift","authors":"Haihan Ye , Wu Chen , Hongchun Yuan , Junyi Zheng","doi":"10.1016/j.ijepes.2025.111089","DOIUrl":"10.1016/j.ijepes.2025.111089","url":null,"abstract":"<div><div>This paper provides a practical solution for valve-side faults in offshore high-voltage direct current (HVDC) systems, which can guarantee the stable operation of offshore AC systems during fault ride-through. Considering that the faulty modular multilevel converter (MMC) will be blocked as a harmonic source, the fault interactions in offshore AC systems occur not only under fundamental frequency, i.e., between wind power plants and MMCs, but also under harmonic frequencies, i.e., between the faulty MMC and other converters, thereby greatly complicating the fault analysis and protection design. In this scenario, this paper proposes a novel protection scheme based on neutral voltage shift, which couples the commutation of the lower arms of the faulty MMC to that of the upper arms through the grounding impedance, this is proved not only to enable the fast fault detection but also to suppress the overvoltage of the sub-module capacitors. Moreover, the AC chopper with parallel capacitors is suggested to replace the DC chopper, which is more beneficial for improving the existence of equilibrium points and the transient performance of the system. Finally, the feasibility of the analysis is demonstrated by Matlab/Simulink results.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111089"},"PeriodicalIF":5.0,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145049213","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

Partial discharge behavior and insulation failures detection in electrical devices subjected to impulse voltage excitation 受冲击电压激励的电气设备局部放电行为和绝缘失效检测

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-09 DOI: 10.1016/j.ijepes.2025.111078

Manuel Eckert , Petr Mraz , Christof Ballweg , Josef Pihera

{"title":"Partial discharge behavior and insulation failures detection in electrical devices subjected to impulse voltage excitation","authors":"Manuel Eckert , Petr Mraz , Christof Ballweg , Josef Pihera","doi":"10.1016/j.ijepes.2025.111078","DOIUrl":"10.1016/j.ijepes.2025.111078","url":null,"abstract":"<div><div>Partial discharges can occur within an insulating system due to flaws in the material and can cause continuous deterioration until a full breakdown occurs. Modern insulating systems are subjected to various forms of pulse voltage excitation, mainly due to the switching of modern power electronics. The recent introduction of wide-bandgap semiconductors increases this stress by enabling higher operating voltages and steeper switching transients than silicon-based semiconductors. Within this paper, partial discharge measurements are performed to investigate the discharge behavior of different partial discharge sources at impulse voltage excitation, aiming to find characteristic features. The presented method relies on measuring the conducted electrical signal of a partial discharge and can, therefore, access all quantities known from partial discharge measurements at sinusoidal voltage. This article introduces the high voltage measurement setup and the signal processing required. Experiments on four different partial discharge sources are performed, and the measured data are evaluated for the information they possess regarding the active discharge mechanisms. With the results obtained, the fault analysis can be extended to recognizing the fault type active at pulse voltage, utilizing partial discharge measurements.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111078"},"PeriodicalIF":5.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020064","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

Optimal decision method of demand side flexible resources as power system operation reserve based on master–slave game 基于主从博弈的电力系统运行备用需求侧柔性资源优化决策方法

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-09 DOI: 10.1016/j.ijepes.2025.111095

Xiangyu Kong , Yang Lv , Zhiduan Yang , Yue Guo , Longyu Zhang , Gaohua Liu

{"title":"Optimal decision method of demand side flexible resources as power system operation reserve based on master–slave game","authors":"Xiangyu Kong , Yang Lv , Zhiduan Yang , Yue Guo , Longyu Zhang , Gaohua Liu","doi":"10.1016/j.ijepes.2025.111095","DOIUrl":"10.1016/j.ijepes.2025.111095","url":null,"abstract":"<div><div>The escalating penetration of renewables and simultaneous source–load uncertainties are critically eroding reserve margins in modern power systems, leaving the latent flexibility of demand-side resources largely untapped. To redress this shortfall, we devise a distribution-network operational-reserve optimisation framework based on the master–slave game and heuristic algorithm is proposed. First, a multi-agent interactive optimization model based on a master–slave game is constructed to fully activate the reserve potential of heterogeneous flexible resources on the demand side. Secondly, real-time scarcity pricing steers users toward consumption rescheduling that dynamically balances economic utility against reserve provision costs. Finally, under the premise of fully considering the multi-agent interest game and data privacy protection, we propose a distributed privacy-preserving decision engine that hybridises an improved grey-wolf optimiser with quadratic programming, which effectively shortens the solution time and improves the convergence speed of the algorithm. The results demonstrate substantial reductions in operating expenditure and marked alleviation of transmission-side reserve stress to ensure the system’s safe operation and reserve capacity constraints, as well as have higher economy and robustness than traditional methods.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111095"},"PeriodicalIF":5.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145019993","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

Dynamic models of pipe using circuit equivalents for efficient co-simulation of electric and thermal transients in energy system 利用电路等效的管道动力学模型，有效地联合模拟能源系统中的电和热瞬态

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-09 DOI: 10.1016/j.ijepes.2025.111011

Yu Liu, Jian Gao, Xiaolin Mou

{"title":"Dynamic models of pipe using circuit equivalents for efficient co-simulation of electric and thermal transients in energy system","authors":"Yu Liu, Jian Gao, Xiaolin Mou","doi":"10.1016/j.ijepes.2025.111011","DOIUrl":"10.1016/j.ijepes.2025.111011","url":null,"abstract":"<div><div>As power-to-heat technologies are increasingly utilized to support the heating and cooling demand in the building and industry sectors, electric power systems will integrate more closely with heating and cooling systems. The interaction between different energy systems becomes important for system operators. It would be beneficial for grid operators to model heating and cooling systems in the simulation environments typically used for the analysis of electric systems. To facilitate such simulation, two novel models for pipes are proposed in this paper. Based on the analogy between thermal quantities and electric quantities, electric circuit equivalents are used to develop the models. In the proposed models, the hydraulic and thermal quantities of fluid in a pipe are represented by electrical quantities. By exploitating the “end-to-end” thermal relationship of a pipe, the first model comprises only two nodes for a pipe and is thus computationally efficient. Taking axial diffusion into account, the second model is extended from the first model to capture fast thermal transients. Both models have been validated against experimental measurement data for slow transients with an error less than 1%. The second model additionally provides highly accurate approximation to fast transients. The value of the models is explained and demonstrated through a case study thereafter. With the proposed pipe models, thermal dynamics in pipes can be efficiently simulated in circuit-oriented simulators. The proposed work extends the application scope of such simulators and improves the simulation efficiency. This facilitates the analysis of energy interactions between power systems with district heating and cooling systems.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111011"},"PeriodicalIF":5.0,"publicationDate":"2025-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145020063","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

Real-time multi-label event categorization in the Brazilian interconnected power system 巴西互联电力系统中的实时多标签事件分类

IF 5 2区工程技术

International Journal of Electrical Power & Energy Systems Pub Date : 2025-09-06 DOI: 10.1016/j.ijepes.2025.111036

Gabriel V. de S. Lopes , Antonio F. da C. de Aquino , Daniel Dotta , Diego Issicaba , Mario R. Arrieta Paternina

{"title":"Real-time multi-label event categorization in the Brazilian interconnected power system","authors":"Gabriel V. de S. Lopes , Antonio F. da C. de Aquino , Daniel Dotta , Diego Issicaba , Mario R. Arrieta Paternina","doi":"10.1016/j.ijepes.2025.111036","DOIUrl":"10.1016/j.ijepes.2025.111036","url":null,"abstract":"<div><div>The increasing complexity of power systems, driven by the decentralization of generation and the growing demand for operational reliability, has reinforced the importance of Wide-Area Monitoring Systems (WAMS) for dynamic system analysis. Among WAMS applications, event detection and classification are essential for enabling timely and accurate responses to disturbances. However, event classification methodologies face significant challenges, such as the occurrence of multiple and sequential events, disturbance overlap, and a high degree of similarity among different classes. This work proposes a multi-label classification methodology based on Convolutional Neural Networks (CNNs), applied to events detected using a two-level robust approach consisting of the Discrete Wavelet Transform-based spectral analysis, followed by a deep neural network (DNN) strategy that prevents false alarms. The main contributions include: (i) the construction of a multi-label dataset comprising 11,205 real events from the Brazilian Interconnected Power System (BIPS), covering Line Tripping (LnT), Electromechanical Oscillations (EO), Loss of Load (LoL) and Generation Tripping (GT); (ii) the development of a classification model based solely on real synchrophasor data; and (iii) its experimental validation during six months of online operation in the BIPS, including common challenges associated with Phasor Measurement Unit (PMU) data, such as noise, missing data, and synchronization errors. The model achieved a Hamming loss of 0.082, correctly classifying 91.8% of the events during deployment. These results demonstrate the effectiveness and robustness of the proposed approach in operational contexts, contributing to faster and more reliable decision-making in power system control centers.</div></div>","PeriodicalId":50326,"journal":{"name":"International Journal of Electrical Power & Energy Systems","volume":"172 ","pages":"Article 111036"},"PeriodicalIF":5.0,"publicationDate":"2025-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145005124","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