IEEE Transactions on Power Delivery最新文献_第4页

Behavior of Single-Line-Ground Faults in Inverter-Based Resource Dominated Grids Explained 基于逆变器的资源主导电网中单线接地故障的行为解释

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-20 DOI: 10.1109/TPWRD.2025.3581815

Zhixin Miao;Lingling Fan;Normann Fischer

引用次数: 0

Series-Parallel DC Collection Topology and Control for All-DC Offshore Wind Power System Considering MPPT and Surplus Power Distribution 考虑最大功率和剩余功率分配的全直流海上风电系统串并联直流采集拓扑与控制

IF 4.4 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-16 DOI: 10.1109/tpwrd.2025.3580233

Peiqi Zhao, Yongqing Meng, Mengwei Ge, Shuhao Yan, Xiuli Wang, Xifan Wang

引用次数: 0

Internal Voltage Equivalent RMS Models of Wind Generation for Transient Stability Assessment 风力发电暂态稳定评估的内电压等效均方根模型

IF 4.4 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-13 DOI: 10.1109/tpwrd.2025.3579678

Mingxuan Zhao, Tao Xue, Ilhan Kocar, Evangelos Farantatos, Deepak Ramasubramanian

引用次数: 0

Modeling and Stability Analysis of Multi Grid-Forming Converters with Connected to Low-Impedance Grid 接入低阻抗电网的多台成网变流器建模与稳定性分析

IF 4.4 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-13 DOI: 10.1109/tpwrd.2025.3579482

Xiaotong Ji, Jinyu Wen, Yunhui Huang

引用次数: 0

A Dynamic Nonlinear Model for Metal-Oxide Varistor Considering the Energy Absorption Excited by Wide-Range Transients 考虑大范围瞬变激发能量吸收的金属氧化物压敏电阻动态非线性模型

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-12 DOI: 10.1109/TPWRD.2025.3579255

Yu-ying Wu;Yan-zhao Xie;Ning Dong;Fu-zheng Tian

引用次数: 0

Estimation of Voltage Sag Frequency Based on the Multiple Characteristic Factors 基于多特征因素的电压暂降频率估计

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-11 DOI: 10.1109/TPWRD.2025.3578548

Fangwei Xu;Kai Guo;Chuan Wang;Jing Huang;Bo Zhao;Jian Liu;Cheng Liu;Xinyang Li

{"title":"Estimation of Voltage Sag Frequency Based on the Multiple Characteristic Factors","authors":"Fangwei Xu;Kai Guo;Chuan Wang;Jing Huang;Bo Zhao;Jian Liu;Cheng Liu;Xinyang Li","doi":"10.1109/TPWRD.2025.3578548","DOIUrl":"10.1109/TPWRD.2025.3578548","url":null,"abstract":"The existing methods of estimating voltage sag frequency (VSF) do not adequately consider the influence of multiple line characteristic factors, such as pollution degree, lightning grade, wind zone grade, and bird damage grade, on short-circuit faults. This gap results in significant deviations between estimation results and actual conditions. In practice, voltage sags mainly result from instantaneous short-circuit faults in transmission lines, and these faults are simultaneously influenced by two key factors: 1) environmental characteristic factors, e.g., lightning grade and wind zone grade, and 2) inherent line characteristic factors, e.g., line length and line run time. In view of this gap, this paper proposes a novel method to estimate VSF by introducing the line fault models that incorporates multiple line characteristic factors to enhance the estimation accuracy of VSF. The proposed method involves three main steps: 1) calculate the failure probability of the line by using the random forest prediction algorithm, 2) obtain the distribution of line fault locations based on adaptive kernel density estimation algorithm (AKDE), and 3) estimate VSF with the fault point method. The efficacy and practical utility of the proposed method are rigorously validated via numerical simulations and field data from power grids.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 4","pages":"2402-2411"},"PeriodicalIF":3.8,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144268562","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 Decomposition Based Harmonic Stability Analysis of Grid-Connected Interlinking Converter Systems Considering the Coupling Interaction 考虑耦合作用的并网互联变流器系统谐波稳定性最优分解分析

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-11 DOI: 10.1109/TPWRD.2025.3578798

Haitao Zhang;Yao Qin;Qianwen Zhang;Fengting Wei;Xiuli Wang;Xifan Wang

{"title":"Optimal Decomposition Based Harmonic Stability Analysis of Grid-Connected Interlinking Converter Systems Considering the Coupling Interaction","authors":"Haitao Zhang;Yao Qin;Qianwen Zhang;Fengting Wei;Xiuli Wang;Xifan Wang","doi":"10.1109/TPWRD.2025.3578798","DOIUrl":"10.1109/TPWRD.2025.3578798","url":null,"abstract":"As a typical hybrid AC/DC power configuration, the grid-connected interlinking converter system operates under influences from both its AC and DC sides. Stability analysis for such systems often employs a hybrid AC/DC admittance model. However, the emergence of right half-plane (RHP) poles within the AC-DC coupling term can compromise the reliability of the conventional method under specific conditions. To deal with aforementioned problems, this paper introduces a sufficient and necessary condition to guarantee that the coupling term does not contain any RHP pole. Building on this, an optimal decomposition based harmonic stability analysis method is proposed, which provides two different decomposed ways that preclude potential RHP poles in the minor-loop gain. This allows for a more general and reliable analysis of the harmonic stability of the entire system. Furthermore, oscillation mechanisms associated with the coupling interaction are investigated. The effectiveness of the proposed method is validated through three cases using Matlab/Simulink. Results reveals that the AC-DC coupling dynamic can elevate instability risk by reducing system resistance from −2.6 to −20.4 when the AC side is stable, while decrease risk by increasing system resistance from −5.5 to −1.5 when the DC side is stable.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 4","pages":"2355-2367"},"PeriodicalIF":3.8,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144268564","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 New Topology for Power Flow Controllers and its Protection against Faults in HVDC Grids 高压直流电网潮流控制器的一种新拓扑及其故障保护

IF 4.4 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-10 DOI: 10.1109/tpwrd.2025.3578391

Shubhangi Bhadoria, Tingzhen Ye, Shahriar Sarmast Ghahfarokhi, Chu Sun, Frans Dijkhuizen, Hans-Peter Nee

引用次数: 0

Distribution System Overhead Switch Bare Copper Contact Degradation: Copper Oxide Impedance, Thickness, and Composition 配电系统架空开关裸铜接触退化：铜氧化物阻抗，厚度和组成

IF 4.4 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-10 DOI: 10.1109/tpwrd.2025.3576676

Dallas E. Cormier, Fabien Besnard, Joseph C. Potvin, Jonathan Jordan

引用次数: 0

Non-Unit Protection for Flexible DC Lines Based on Mirror Waveform Opening Index of Initial Forward Traveling Wave 基于初始正向行波镜像波形开度指数的柔性直流线路非单元保护

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-10 DOI: 10.1109/TPWRD.2025.3578366

Yanting Wang;Mingyuan Bai;Dong Liang;Baohui Zhang;Can Huang;Zhenfeng Liang

{"title":"Non-Unit Protection for Flexible DC Lines Based on Mirror Waveform Opening Index of Initial Forward Traveling Wave","authors":"Yanting Wang;Mingyuan Bai;Dong Liang;Baohui Zhang;Can Huang;Zhenfeng Liang","doi":"10.1109/TPWRD.2025.3578366","DOIUrl":"10.1109/TPWRD.2025.3578366","url":null,"abstract":"Flexible DC grid is of great significance for effective consumption of large-scale renewable energy. However, conventional traveling wave protections for DC transmission lines encounter challenges such as limited tolerance to fault resistance and susceptibility to lightning interference, leading to potential misoperations and reduced the reliability. To tackle these issues, this paper begins by deriving time-domain analytical expressions for the initial forward traveling wave (FTW) under conditions of internal faults, external faults, and lightning interference. These expressions reveal the characteristic differences of the initial FTW under each case. Subsequently, combined with the mathematical method of waveform mirroring and quadratic polynomial fitting, the non-unit protection method based on the mirror waveform opening index of the initial forward traveling wave is proposed. The method takes advantage of the differences in FTW characteristics under different conditions, theoretically unaffected by fault resistance. Extensive simulation results demonstrate that the proposed protection method operates fast and accurately identifies different DC line faults and lightning interference within 1 ms, and it is able to withstand fault resistances up to 1000Ω. Furthermore, the proposed protection method is highly robust to noise conditions and is applicable to various grid topologies.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 4","pages":"2241-2253"},"PeriodicalIF":3.8,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144259958","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