Results 51 to 60 of about 134,025 (154)

Quantifying cyber risk: A model for evaluating safety impacts of cyber threats on NPPs

Nuclear Engineering and Technology
The quantitative cyber risk assessment approach presented in this paper is specifically tailored to meet the operational and safety needs of Nuclear Power Plants (NPPs).
Kwang-Seop Son, Jae-Gu Song, Inhye Hahm, Jung-Woon Lee   +3 more
doaj   +1 more source

Pilot Protection for Converter-interconnected Lines Based on Multi-stage Mutation of Fault Current

Zhongguo dianli
The introduction of power electronic converters has altered the fault characteristics of the traditional power grids. Traditional differential protection is inadequate to meet protection requirements when AC lines experience faults, leading to reduced ...
Zhaoyi SHA, Congbo WANG, Rongrong ZHAN, Yue YU, Jianfeng WANG   +4 more
doaj   +1 more source

VisGCL: Visibility Graph Convolutional Learning on Time Series Data for Arc Fault Detection in Low‐Voltage Distribution Networks

IET Science, Measurement & Technology
Arc faults in low‐voltage distribution networks significantly threaten power system safety due to their randomness and concealment. Traditional arc fault detection methods, which rely on time‐domain and frequency‐domain features, often struggle with ...
Junfeng Yang, Nawaraj Kumar Mahato, Jiaxuan Yang, Gangjun Gong, Li Liu, Ren Qiang, Luyao Wang, Xue Liu   +7 more
doaj   +1 more source

Malicious Attack Correlation Analysis Method of Source-Grid-Load System under Specific Attack Scenarios

Zhongguo dianli, 2019
The key for the power grid to deal with cyber security threats is to make full use of cyber and electrical information to improve the self-adaptation ability and automation for identification of malicious attack event.
Rui ZHANG, Jiaxuan FEI, Congcong SHI, Xiaojian ZHANG, Xiuli HUANG, Qi WANG   +5 more
doaj   +1 more source

Research on Short-Term Load Prediction Based on Seq2seq Model

Energies, 2019
Electricity load prediction is the primary basis on which power-related departments to make logical and effective generation plans and scientific scheduling plans for the most effective power utilization.
Gangjun Gong, Xiaonan An, Nawaraj Kumar Mahato, Shuyan Sun, Si Chen, Yafeng Wen   +5 more
doaj   +1 more source

Performance comparison of passive series R and shunt R-C damped LCL filter for grid-connected inverters

The Journal of Engineering, 2019
LCL filters are widely used in distributed power-generation systems to attenuate high-frequency harmonics caused by pulse-width modulation switching of grid-connected inverters. A resonance occurs due to the series-connected reactive components. In order
Hakan Temiz, Erhan Demirok, Ozan Keysan, Ali Türkay, Burak Çetinkaya   +4 more
doaj   +1 more source

Virtual radioactive source system for exercises modeling high doses

Nukleonika
This article presents the possibilities of working in a virtual high-dose rate field following a procedure developed at the Nuclear Security Department of the Centre for Energy Research (EK NSD) in Budapest. Real-life simulation of a radiation survey and
Bodor Károly, Csalótzky Zsolt, Pető János, Völgyesi Péter, Gulyás Attila, Kaposy Nándor, Zagyvai Péter   +6 more
doaj   +1 more source

An ultra-fast MMC-HVDC fault location algorithm based on transient voltage features and regression neural network

International Journal of Electrical Power & Energy Systems
An ultra-fast fault location algorithm based on the single-ended transient voltage features and regression neural network (RNN) is proposed, which utilizes 2.5 ms postfualt data window and is suitable for modular multilevel converter-based high-voltage ...
Yunqi Zhang, Yue Yu, Guosheng Yang
doaj   +1 more source

Generalizable image segmentation for microstructure characterization through integrated SEM and EBSD analysis

npj Computational Materials
We demonstrate generalizable semantic segmentation using minimal ground truth data. Correlated scanning electron microscopy (SEM) images and electron backscatter diffraction (EBSD) measurements of friction-stir processed 316L stainless steel plates were ...
M. F. N. Taufique, Julia Nguyen, Julian D. Escobar, Mayur Pole, David Garcia, Tianhao Wang, Hrishikesh Das, Kathy Nwe, David Brown, Kenneth Ross, Donald R. Todd, Erin Barker, Eric Smith, Keerti S. Kappagantula, Jenna A. Bilbrey   +14 more
doaj   +1 more source

Research Progress on Power Visual Detection of Overhead Line Bolt Defects Based on UAV Images

Drones
In natural environments, the connecting bolts of overhead lines and power towers are prone to loosening and missing, posing potential risks to the safe and stable operation of the power system.
Xinlan Deng, Min He, Jingwen Zheng, Liang Qin, Kaipei Liu   +4 more
doaj   +1 more source