IEEE Transactions on Power Delivery最新文献_第5页

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

Principle and Implementation of Active Ground Fault Arc Suppression Based on Hybrid MMC in AC/DC Distribution Network 基于混合MMC的交直流配电网主动接地故障消弧原理与实现

IF 4.4 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-09 DOI: 10.1109/tpwrd.2025.3577921

Jinmu Lai, Junhong Chen, Xin Yin, Jun Liang, Lang Jiang, Xiangjun Zeng, Kun Yu, Xianggen Yin

引用次数: 0

Multi-Scale Component Detection in High-Resolution Power Transmission Tower Images 高分辨率输电塔图像的多尺度分量检测

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-09 DOI: 10.1109/TPWRD.2025.3577045

Xiaolong Zhao;Haifeng Zhang;Chonghui Song;Hao Li;Hongyi Guo

{"title":"Multi-Scale Component Detection in High-Resolution Power Transmission Tower Images","authors":"Xiaolong Zhao;Haifeng Zhang;Chonghui Song;Hao Li;Hongyi Guo","doi":"10.1109/TPWRD.2025.3577045","DOIUrl":"10.1109/TPWRD.2025.3577045","url":null,"abstract":"The UAV aerial images of transmission towers are characterized by high resolution, significant target scale variations, and specific component distribution relationships among components, challenging multi-target detection precision and speed. To address these issues, this paper combines convolutional neural network (CNN) and graph convolutional network (GCN) characteristics, proposing the globally optimized feature pyramid network (GO-FPN). First, we design the multi-branch dilated convolution (MDC) to enhance information extraction and adapt to different receptive field scales. Second, we introduce the graph-based global reasoning module (GRLite) to strengthen feature interactions between regions and improve small object detection through relational reasoning. Additionally, we propose the low information loss downsampling module (LILD), employing dense connections and space-to-depth transformations to reduce feature scales and prevent information loss, decreasing hardware consumption and accelerating inference. Finally, validation on two datasets shows that our approach achieves state-of-the-art performance in detection precision and speed.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 4","pages":"2391-2401"},"PeriodicalIF":3.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252325","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

Fast Frequency Response Analysis for Grid- Following and Grid-Forming Controlled BESS Considering Voltage Coupling Effect 考虑电压耦合效应的电网跟随与成网控制BESS快速频响分析

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-09 DOI: 10.1109/TPWRD.2025.3578036

Kaiyuan Su;Xiaorong Xie;Zhen Gong;Hui Liu;Dawei Sun;Yaohan Wang

{"title":"Fast Frequency Response Analysis for Grid- Following and Grid-Forming Controlled BESS Considering Voltage Coupling Effect","authors":"Kaiyuan Su;Xiaorong Xie;Zhen Gong;Hui Liu;Dawei Sun;Yaohan Wang","doi":"10.1109/TPWRD.2025.3578036","DOIUrl":"10.1109/TPWRD.2025.3578036","url":null,"abstract":"The fast frequency response (FFR) provided by the battery energy storage system (BESS) is essential for maintaining the frequency stability of a power system. However, the voltage coupling effect (VCE) may negatively affect the FFR of the BESS in weak grids. The VCE, particularly when comparing grid-following (GFL) and grid-forming (GFM) control strategies, remains inadequately explored. This paper proposes a novel FFR modeling approach for the GFL & GFM BESS considering the VCE. The impacts of BESS converter parameters and system characteristics on the VCE are investigated. Comparative analyses between GFL & GFM control are performed to quantify the VCE differences and identify critical parameters affecting the VCE on the FFR. The proposed models and analyses are validated through electromagnetic transient simulations and control-hardware-in-the-loop (CHIL) experiments. It is revealed that the VCE emerges from the instantaneous voltage drop during step disturbances, leading to reduced active power support and delayed frequency recovery. The VCE increases significantly as the short circuit ratio (SCR) approaches 2, but can be mitigated through increased voltage droop coefficients or, in GFM control, through adjusting virtual impedance. With appropriately selected parameters, the GFM BESS demonstrates superior performance in weak grids with reduced capacity requirements compared to GFL BESS.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 4","pages":"2412-2425"},"PeriodicalIF":3.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252329","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

The Inverse Carson’s Equations Problem: Definition, Implementation and Numerical Experiments 逆卡森方程问题：定义、实现和数值实验

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-09 DOI: 10.1109/TPWRD.2025.3578065

C. H. Tam;F. Geth;N. Mithulananthan

引用次数: 0

Advanced YOLO-Based Real-Time Power Line Detection for Vegetation Management 基于yolo的植被管理电力线实时检测

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-09 DOI: 10.1109/TPWRD.2025.3578274

Shuaiang Rong;Lina He;Salih Furkan Atici;Ahmet Enis Cetin

{"title":"Advanced YOLO-Based Real-Time Power Line Detection for Vegetation Management","authors":"Shuaiang Rong;Lina He;Salih Furkan Atici;Ahmet Enis Cetin","doi":"10.1109/TPWRD.2025.3578274","DOIUrl":"10.1109/TPWRD.2025.3578274","url":null,"abstract":"Power line infrastructure is a key component of the power system, and it is rapidly expanding to meet growing energy demands. Vegetation encroachment is a significant threat to the safe operation of power lines, requiring reliable and timely management to enhance the resilience and reliability of the power network. Integrating smart grid technology, especially aerial drones (AD), provides substantial potential to revolutionize the management of extensive power line networks with advanced imaging techniques. However, processing the vast quantity of images captured by ADpatrols remains a significant challenge. This paper introduces an intelligent real-time monitoring framework for detecting power lines and adjacent vegetation. It is developed based on the deep-learning Convolutional Neural Network (CNN), You Only Look Once (YOLO), renowned for its high-speed object detection capabilities. Unlike existing deep learning-based methods, this framework enhances accuracy by integrating YOLOv8 with directional filters. They can extract directional features and textures of power lines and their vicinity, generating Oriented Bounding Boxes (OBB) for more precise localization. Additionally, a post-processing algorithm is developed to create a vegetation encroachment metric for power lines, allowing for a quantitative assessment of the surrounding vegetation distribution. The effectiveness of the proposed framework is demonstrated using a widely used power line dataset.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 4","pages":"2142-2153"},"PeriodicalIF":3.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144252326","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

Oscillation Risks of Grid-Following and Grid-Forming Inverter-Based Resources in Series-Compensated Networks 串联补偿网络中随网和成网逆变器资源的振荡风险

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-06 DOI: 10.1109/TPWRD.2025.3577947

Ratik Mittal;Zhixin Miao;Lingling Fan;Deepak Ramasubramanian

{"title":"Oscillation Risks of Grid-Following and Grid-Forming Inverter-Based Resources in Series-Compensated Networks","authors":"Ratik Mittal;Zhixin Miao;Lingling Fan;Deepak Ramasubramanian","doi":"10.1109/TPWRD.2025.3577947","DOIUrl":"10.1109/TPWRD.2025.3577947","url":null,"abstract":"This paper investigates the dynamic behavior of a grid-connected inverter-based resource (IBR) when connected radially to a series compensated line. Potential interactions between the series compensation and the IBR have been identified for both types: grid-following (GFL) or grid-forming (GFM). The study begins with electromagnetic transient (EMT) simulations to demonstrate stability issues. Subsequently, nonlinear analytical models are formulated in the <inline-formula><tex-math>$dq$</tex-math></inline-formula> frame, validated against the EMT simulation, and leveraged to assess eigenvalues and participation factors. Influencing factors of the dominant oscillation modes have been identified. The analysis results show that series compensation may make a mode associated with the synchronization unit unstable. Furthermore, customized feedback systems are built for the synchronizing loop. Series compensation can increase the sensitivity of the voltage phase angle towards the synchronizing angle, and introduce phase lag in the real power response towards the synchronizing angle. These factors may cause interactions with the phase-locked loop in GFL-IBR systems and with power-based synchronization in GFM-IBR systems, potentially leading to instability.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 4","pages":"2426-2438"},"PeriodicalIF":3.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237068","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 Interaction Analysis of Weak Grid-Tied VSC System in Current Control Timescale 电流控制时间尺度下弱并网VSC系统的动态相互作用分析

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-06 DOI: 10.1109/TPWRD.2025.3577654

Chaohang Zheng;Xi Wu;Xi Chen;Jing Lu

{"title":"Dynamic Interaction Analysis of Weak Grid-Tied VSC System in Current Control Timescale","authors":"Chaohang Zheng;Xi Wu;Xi Chen;Jing Lu","doi":"10.1109/TPWRD.2025.3577654","DOIUrl":"10.1109/TPWRD.2025.3577654","url":null,"abstract":"The dynamic interaction among internal components of the grid-tied VSC system can significantly induce instability and endanger the power system. However, the interaction mechanisms within the VSC internal control loops remain obscure, resulting in an unclear identification of the instability evolution process and the dominant element causing system instability. In this paper, a novel model that accurately characterizes the inherent energy evolution of the VSC system is proposed to determine the interaction path and provide clear insights into the vulnerabilities in the system dynamics. First, the Euler-Lagrange dynamic equation of the grid-tied VSC system is established to yield insights into the interaction path from a novel perspective on energy evolution properties. Then, a contribution intensity indicator is proposed for quantifying the contribution of the current control, PLL and grid to VSC system interactions, as well as explaining the interaction process. On this basis, two types of instability in the VSC system are identified, and the effects of various factors on these instabilities are thoroughly analyzed. Furthermore, a data-driven approach is proposed to evaluate the interaction intensity of the VSC system and the participation degree of its subsystems. Finally, the effectiveness of the theoretical analysis results is validated through simulations.","PeriodicalId":13498,"journal":{"name":"IEEE Transactions on Power Delivery","volume":"40 4","pages":"2327-2340"},"PeriodicalIF":3.8,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144237223","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

Backflashover Rate Estimation for Overhead Transmission Lines via Unscented Transform Method 无气味变换法估算架空输电线路反闪率

IF 3.8 2区工程技术

IEEE Transactions on Power Delivery Pub Date : 2025-06-06 DOI: 10.1109/TPWRD.2025.3577479

Alex J. C. Coelho;Rodolfo A. R. Moura;Fernando A. Assis

引用次数: 0