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The trend toward Microgrids (MGs) is significantly increasing by employing Distributed Generators (DGs) which leads to new challenges, especially in the fault detection. This paper proposes an algorithm based on the Total Harmonic…

系统与控制 · 电气工程与系统科学 2023-03-29 Wael Al Hanaineh , Jose Matas , Jorge. El mariachet , Josep. M. Guerrero

This paper proposes a time-domain fault location identification method for mixed overhead-underground power distribution systems that can handle challenging fault scenarios such as sub-cycle faults, arcing faults and evolving faults. The…

系统与控制 · 电气工程与系统科学 2025-10-23 Ali Shakeri Kahnamouei , Saeed Lotfifard

Protection against dc faults is one of the main technical hurdles faced when operating converter-based HVdc systems. Protection becomes even more challenging for multi-terminal dc (MTdc) systems with more than two terminals/converter…

系统与控制 · 电气工程与系统科学 2020-06-30 Jingfan Sun , Suman Debnath , Matthieu Bloch , Maryam Saeedifard

Network or physical attacks on industrial equipment or computer systems may cause massive losses. Therefore, a quick and accurate anomaly detection (AD) based on monitoring data, especially the multivariate time-series (MTS) data, is of…

机器学习 · 计算机科学 2022-11-03 Jun Zhan , Chengkun Wu , Canqun Yang , Qiucheng Miao , Xiandong Ma

Precise location of faults for large distance power transmission networks is essential for faster repair and restoration process. High Voltage direct current (HVdc) networks using modular multi-level converter (MMC) technology has found its…

信号处理 · 电气工程与系统科学 2022-01-21 Timothy Flavin , Bhaskar Mitra , Vidhyashree Nagaraju , Rounak Meyur

The prompt and accurate detection of faults and abnormalities in electric transmission lines is a critical challenge in smart grid systems. Existing methods mostly rely on model-based approaches, which may not capture all the aspects of…

机器学习 · 计算机科学 2020-09-16 Peyman Tehrani , Marco Levorato

Graph Neural Networks (GNNs) have achieved state-of-the-art performance in recommender systems. Nevertheless, the process of searching and ranking from a large item corpus usually requires high latency, which limits the widespread…

信息检索 · 计算机科学 2023-09-06 Huiyuan Chen , Kaixiong Zhou , Kwei-Herng Lai , Chin-Chia Michael Yeh , Yan Zheng , Xia Hu , Hao Yang

Fault diagnosis plays an essential role in reducing the maintenance costs of rotating machinery manufacturing systems. In many real applications of fault detection and diagnosis, data tend to be imbalanced, meaning that the number of…

机器学习 · 计算机科学 2022-03-30 Masoud Jalayer , Amin Kaboli , Carlotta Orsenigo , Carlo Vercellis

High impedance fault (HIF) has been a challenging task to detect in distribution networks. On one hand, although several types of HIF models are available for HIF study, they are still not exhibiting satisfactory fault waveforms. On the…

信号处理 · 电气工程与系统科学 2018-08-15 Qiushi Cui , Khalil El-Arroudi , Yang Weng

Ensuring a stable power supply in rural areas relies heavily on effective inspection of power equipment, particularly transmission lines (TLs). However, detecting TLs from aerial imagery can be challenging when dealing with misalignments…

计算机视觉与模式识别 · 计算机科学 2025-01-28 Shengdong Zhang , Xiaoqin Zhang , Wenqi Ren , Linlin Shen , Shaohua Wan , Jun Zhang , Yujing M Jiang

Electricity theft detection issue has drawn lots of attention during last decades. Timely identification of the electricity theft in the power system is crucial for the safety and availability of the system. Although sustainable efforts…

计算机视觉与模式识别 · 计算机科学 2018-05-25 Bo Li , Kele Xu , Xiaoyan Cui , Yiheng Wang , Xinbo Ai , Yanbo Wang

To enhance the intelligence degree in operation and maintenance, a novel method for fault detection in power grids is proposed. The proposed GNN-based approach first identifies fault nodes through a specialized feature extraction method…

机器学习 · 计算机科学 2024-01-30 Hao Pei , Si Lin , Chuanfu Li , Che Wang , Haoming Chen , Sizhe Li

This paper presents a systematic approach to detecting High Impedance Faults (HIFs) in medium voltage distribution networks using recurrence plots and machine learning. We first simulate 1150 internal faults, including 300 HIFs, 1000…

信号处理 · 电气工程与系统科学 2025-03-06 Pallav Kumar Bera , Samita Rani Pani , Rajesh Kumar

The problem of Hybrid Linear Modeling (HLM) is to model and segment data using a mixture of affine subspaces. Different strategies have been proposed to solve this problem, however, rigorous analysis justifying their performance is missing.…

机器学习 · 统计学 2009-08-27 Guangliang Chen , Gilad Lerman

Software-Defined Networking (SDN) is a novel networking paradigm that provides enhanced programming abilities, which can be used to solve traditional security challenges on the basis of more efficient approaches. The most important element…

密码学与安全 · 计算机科学 2018-06-12 Majd Latah , Levent Toker

This research aims to develop a dynamic and scalable framework to facilitate harmonization of Common Data Elements (CDEs) across heterogeneous biomedical datasets by addressing challenges such as semantic heterogeneity, structural…

信息检索 · 计算机科学 2025-06-04 Madan Krishnamurthy , Daniel Korn , Melissa A Haendel , Christopher J Mungall , Anne E Thessen

A cornerstone of numerical homogenization is the equivalence of the microscopic and the macroscopic energy densities, which is referred to as Hill-Mandel condition. Among these coupling conditions, the cases of periodic, linear displacement…

数值分析 · 数学 2019-06-26 Andreas Fischer , Bernhard Eidel

District Heating (DH) systems are essential for energy-efficient urban heating. However, despite the advancements in automated fault detection and diagnosis (FDD), DH still faces challenges in operational faults that impact efficiency. This…

机器学习 · 计算机科学 2024-08-28 Jonne van Dreven , Abbas Cheddad , Sadi Alawadi , Ahmad Nauman Ghazi , Jad Al Koussa , Dirk Vanhoudt

This paper proposes a robust method for fault detection and severity estimation in multivariate time-series data to enhance predictive maintenance of mechanical systems. We use the Temporal Graph Convolutional Network (T-GCN) model to…

系统与控制 · 电气工程与系统科学 2025-04-07 Youngjae Jeon , Eunho Heo , Jinmo Lee , Taewon Uhm , Dongjin Lee

Diverse fault types, fast re-closures, and complicated transient states after a fault event make real-time fault location in power grids challenging. Existing localization techniques in this area rely on simplistic assumptions, such as…

系统与控制 · 计算机科学 2019-05-20 Wenting Li , Deepjyoti Deka , Michael Chertkov , Meng Wang