IEEE Transactions on Power Delivery最新文献_第9页

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IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-23 DOI: 10.1109/TPWRD.2025.3528206

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IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-23 DOI: 10.1109/TPWRD.2025.3527069

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IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-23 DOI: 10.1109/TPWRD.2025.3527070

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Pseudo-Incremental Normalized Quantity-Based Phase Selection Method for Systems With Conventional and Inverter-Based Resources 基于常规资源和逆变器资源系统的伪增量归一化定量选相方法

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-22 DOI: 10.1109/TPWRD.2025.3532111

Felipe V. Lopes;Moisés J. B. B. Davi;Eduardo J. S. Leite;Raphael L. A. Reis;Kleber M. Silva;Guilherme Zat;Mário Oleskovicz

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Improved Stability of a Grid-Following Converter Controller Supplying Virtual Inertia and Damping 提供虚惯量和阻尼的电网跟随变换器控制器稳定性的改进

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-20 DOI: 10.1109/TPWRD.2025.3532097

Angelo Maurizio Brambilla;Davide del Giudice;Federico Bizzarri

{"title":"Improved Stability of a Grid-Following Converter Controller Supplying Virtual Inertia and Damping","authors":"Angelo Maurizio Brambilla;Davide del Giudice;Federico Bizzarri","doi":"10.1109/TPWRD.2025.3532097","DOIUrl":"10.1109/TPWRD.2025.3532097","url":null,"abstract":"The share of converter-interfaced generator (<sc>cig) units fuelled by renewables and scattered in distribution networks is increasing and causing the progressive phase out of synchronous generators and passive loads, which are the main source of vital parameters in ensuring frequency stability: inertia and load damping. To compensate the decreasing trend in these parameters, the control scheme of <sc>cig units, typically of grid-following (<sc>gfl) kind, may include controls blocks that emulate the electro-mechanical behaviour of synchronous generators by letting them provide virtual inertia and load damping. However, a negative trait of <sc>gfl <sc>cigs is that, contrary to grid-forming (<sc>gfm) <sc>cigs (which are affected by other drawbacks), they rely on phase locked loops (<sc>plls). This dependency may trigger instability based on the strength of the grid and <sc>cig operating conditions. In this paper, we propose a novel <sc>gfl <sc>cig control scheme that emulates the electromechanical behaviour of synchronous generators better than conventional implementations. Eigenvalue and transient stability analyses of different power systems prove that, although the <sc>pll model used is the same, the proposed <sc>gfl <sc>cig control has a higher stability margin than its conventional counterpart, and provides a frequency support comparable with a synchronous generator of same inertia and load damping.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 2","pages":"900-911"},"PeriodicalIF":3.8,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991114","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}

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On Estimation of Zero-Sequence Impedances of Parallel Transmission Lines From Fault Data 基于故障数据的并联输电线路零序阻抗估计

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-20 DOI: 10.1109/TPWRD.2025.3527738

Ahmad Salehi Dobakhshari;Sadegh Azizi

{"title":"On Estimation of Zero-Sequence Impedances of Parallel Transmission Lines From Fault Data","authors":"Ahmad Salehi Dobakhshari;Sadegh Azizi","doi":"10.1109/TPWRD.2025.3527738","DOIUrl":"10.1109/TPWRD.2025.3527738","url":null,"abstract":"The problem of estimating zero-sequence parameters of a parallel transmission line from fault data is considered. This paper analytically demonstrates that the zero-sequence impedances of a parallel transmission line are not, in general, attainable using the synchronized measurements taken at the line terminals following a ground fault on the line. To this end, Kirchhoff's voltage law (KVL) and current law (KCL) are employed to establish the system of equations that relate the measurements to the zero-sequence impedances of the line. The paper also highlights two rather theoretical exceptions to this generalization: first, the scenario of bolted faults, and second, situations where the fault resistance value is known beforehand (although this assumption is not valid in practice). A lemma is introduced and proved demonstrating that under specific conditions the zero-sequence reactances of the line can be accurately estimated while the zero-sequence resistances of the line remain unattainable. Simulation results, under a variety of conditions such as time-varying fault resistance and untransposed parallel lines, support the theoretical findings that zero-sequence resistances cannot be obtained from fault data while for short transposed lines or untransposed lines without earth wire zero-sequence reactances can be estimated quite accurately. Realistic measurement errors undermine the reliability of estimates, further questioning the attainability of zero-sequence parameters of parallel lines from fault data.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 2","pages":"831-842"},"PeriodicalIF":3.8,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142991116","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}

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Impact of Gamma Radiation on the Residual Voltage of Surge Protective Components 伽玛辐射对电涌保护元件残余电压的影响

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-20 DOI: 10.1109/TPWRD.2025.3532118

Thomas Tsovilis;Konstantinos M. Gektidis;Niki I. Gkonou;Ioannis Kaissas;Argiro Boziari;Georgios D. Peppas

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Transformer Incremental Fault Diagnosis Method Using Lossless Estimation and Balanced Training 基于无损估计和平衡训练的变压器增量故障诊断方法

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-15 DOI: 10.1109/TPWRD.2025.3528121

Chunxin Wang;Qing Xie;Yutong Zhang;QianQian Zhang;Ruoquan Zhang;Jun Xie

{"title":"Transformer Incremental Fault Diagnosis Method Using Lossless Estimation and Balanced Training","authors":"Chunxin Wang;Qing Xie;Yutong Zhang;QianQian Zhang;Ruoquan Zhang;Jun Xie","doi":"10.1109/TPWRD.2025.3528121","DOIUrl":"10.1109/TPWRD.2025.3528121","url":null,"abstract":"Incremental fault diagnosis is an effective way to address the discrepancies between the actual diagnosis data distribution and the trained model. However, the traditional incremental learning method has the problem of forgetting the feature of historical faults and reducing the diagnostic accuracy when applied. A transformer incremental fault diagnosis method using lossless estimation and balanced training is proposed in this study. Firstly, this method achieves lossless estimation of historical task gradients in incremental updates based on Gaussian–Hermite transformation, thereby preserving historical task information as much as possible. Then, to enhance the “anti-forgetting” capability of historical features while ensuring the ability to learn new features, the method balances the weights between the loss functions of new and historical tasks to optimize the update direction of the network training. Finally, the verification results using real data collected from multiple locations indicate that the proposed method has both “anti-forgetting” ability for historical tasks and the ability to learn new tasks effectively. Moreover, the lowest accuracy rate is 97.04% in the test, and the incremental training efficiency is relatively high.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 2","pages":"889-899"},"PeriodicalIF":3.8,"publicationDate":"2025-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142986434","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}

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Experiments for Influence of Arc Ignition Metal Wire on Injected Energy in Artificially Triggered Lightning and Laboratory-Generated Lightning Return Strokes 引燃电弧金属丝对人工触发闪电和实验室产生的闪电回击中注入能量影响的实验

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-13 DOI: 10.1109/TPWRD.2025.3528581

Peifeng Wang;Gang Liu;Xiang Fang;Lyuwen Chen;Shaodong Chen;Deming Guo;Xu Yan;Weitao Lyu

{"title":"Experiments for Influence of Arc Ignition Metal Wire on Injected Energy in Artificially Triggered Lightning and Laboratory-Generated Lightning Return Strokes","authors":"Peifeng Wang;Gang Liu;Xiang Fang;Lyuwen Chen;Shaodong Chen;Deming Guo;Xu Yan;Weitao Lyu","doi":"10.1109/TPWRD.2025.3528581","DOIUrl":"10.1109/TPWRD.2025.3528581","url":null,"abstract":"Identifying the influence of metal wire on interfacial energy transfer characteristics is crucial for accurately assessing lightning stroke damage. This study analyzes the impact of metal wire on interfacial energy transfer characteristics under the context of return stroke current. Firstly, a method is proposed for injected energy inversion calculation. Secondly, the preliminary interfacial energy transfer characteristics involving the influence of metal wire are determined through artificially triggered lightning experiment. Additionally, a modified laboratory lightning test of return stroke experiments platform is designed. The injected energy results are quantitatively compared with and without metal wire. The influence of wire diameter and length on interfacial energy transfer characteristics are further discussed. The research findings indicate that, (1) In an artificially triggered lightning experiment, the difference in injected energy at the OGW interface compared to the traditional physical model reaches 76.2%. (2) In laboratory lightning test of return stroke experiments, the introduction of metal wire at low current amplitudes will increase the injected energy on the surface of low-melting-point alloys by 42.1% and further widens the difference in injected energy. (3) Moreover, the difference in injected energy increases with the increase in wire diameter but decreases with the increase in wire length.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 2","pages":"852-863"},"PeriodicalIF":3.8,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142974867","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}

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Suppression to Commutation Failure of UHVDC in Hierarchical Connection Mode With Synchronous Condenser by Enhancing Post-Fault System Strength 提高故障后系统强度抑制同步电容器分层连接方式的特高压直流换相故障

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-01-08 DOI: 10.1109/TPWRD.2025.3527139

Shenghu Li;Yikai Li

{"title":"Suppression to Commutation Failure of UHVDC in Hierarchical Connection Mode With Synchronous Condenser by Enhancing Post-Fault System Strength","authors":"Shenghu Li;Yikai Li","doi":"10.1109/TPWRD.2025.3527139","DOIUrl":"10.1109/TPWRD.2025.3527139","url":null,"abstract":"The reactive power of synchronous condenser (SC) at the inverter of the ultra HVDC (UHVDC) in the hierarchical connection mode affects the system strength and the suppression effect on the commutation failure (CF). In this paper, a dynamic short-circuit ratio (DSCR) including the reactive power response of the SC is proposed to quantify the post-fault system strength. A coordinated control against the CF with the DSCR is proposed. The novelties are, (1) The analytical expression of the DSCR with the impedances of the Thevenin equivalent of both grids and the inter-layer coupling is newly derived. The recursive least-square method with the forgetting factor and the robust estimation is proposed to obtain the DSCR. (2) A multi-objective optimization model is proposed to tune the excitation parameters of SC and enhance the DSCR. (3) A coordinated control with the enhanced DSCR is proposed to adjust the dc current to suppress the CF. The simulation results verify the accuracy of the estimated DSCR and the effect of the coordinated control on enhancing the system strength and avoiding the CF under different fault conditions.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 2","pages":"864-877"},"PeriodicalIF":3.8,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142937258","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