Results 11 to 20 of about 288,989 (348)

The classification model for identifying single-phase earth ground faults in the distribution network jointly driven by physical model and machine learning

Frontiers in Energy Research, 2023
Single-phase earth ground faults are the most frequent faults likely to occur but hard to identify in a distribution system, especially in a neutral ineffectively grounded system.
Su Xueneng, Zhang Hua, Gao Yiwen, Huang Yan, Long Cheng, Li Shilong, Zhang Weiwei, Zheng Qin   +7 more
doaj   +1 more source

Phase Selection and Location Method of Generator Stator Winding Ground Fault Based on BP Neural Network

Energies, 2023
The phase selection and fault location methods of generator stator winding single-phase grounding fault are greatly affected by the transition resistance.
Qinwei Li, Wenchao Jia
doaj   +1 more source

A Single-Phase-to-Ground Fault Detection Method Based on the Ratio Fluctuation Coefficient of the Zero-Sequence Current and Voltage Differential in a Distribution Network

IEEE Access, 2023
Because the traditional zero-sequence overcurrent protection method is not effective in detecting single-phase-to-ground faults (SPGF) in a low-resistance grounded system (LRGS), this paper analyzes the fault characteristics of a 10-kV LRGS in detail ...
Huamin Liang, Haifeng Li, G. Wang
semanticscholar   +1 more source

Analysis of the Influence of the Insulation Parameters of Medium Voltage Electrical Networks and of the Petersen Coil on the Single-Phase-to-Ground Fault Current

Energies, 2021
Settings of protection are essential to ensure the sensitivity and selectivity needed to detect defects. Making the correct settings requires the calculation of the fault currents with as little error as possible.
Dumitru Toader, Marian Greconici, Daniela Vesa, Maria Vintan, Claudiu Solea   +4 more
doaj   +1 more source

Deep Belief Network Based Faulty Feeder Detection of Single-Phase Ground Fault

IEEE Access, 2021
This paper proposes a faulty feeder detection method based on Deep Belief Network (DBN) of deep learning theory for the neutral non-effectively grounded systems.
Hongbo Wei, Hua Wei, Zhongliang Lyu, Xiaoqing Bai, Junyang Tian   +4 more
semanticscholar   +1 more source

Modelling and control of current full compensation system‐based controllable voltage source

IET Generation, Transmission & Distribution, 2023
Current active suppression technology of arc overvoltage in distribution network has small capacity of controllable voltage source and complex control and cannot flexibly adjust the zero‐sequence voltage of neutral point.
Hongwen Liu, Xiangjun Zeng, Qing yang, Chenchao Chai   +3 more
doaj   +1 more source

Fault Line Selection of Single Phase Grounding Based on Wavelet Packet Full Frequency Analysis and OS-ELM

Journal of Harbin University of Science and Technology, 2021
In order to enhance effectiveness of single-phase ground fault feature extraction and to achieve exactly identification of fault line selection，a new fault line selection method of single phase grounding fault based on wavelet packet and online ...
JI Wen-lu, ZHAO Xiao-long, ZHANG Ming, YANG Hong-lei, WENG Jia-ming   +4 more
doaj   +1 more source

Fusion fault line selection method of small current grounding fault based on VMD

Gong-kuang zidonghua, 2023
At present, the fault line selection method of coal mine distribution network has the problem of fault line selection failure when the relevant fault features are not obvious.
SUN Kongming, LI Yudun, FAN Rongqi, XUE Yongduan, PANG Qingle, XU Xianze   +5 more
doaj   +1 more source

Research on Single-Phase Grounding Fault Location Technology

Journal of Physics: Conference Series, 2019
Abstract In view of the complex structure, large scale and high failure rate of distribution network, as well as many branch lines, large transition resistance, difficult to detect fault signals and difficult to locate accurately., A single-phase grounding fault location method based on single-terminal measurement for distribution ...
Zhang Xiping, Wang Zhiqiang, Dai Zehui, Hu Yutao, Hui Songshan, Si Danfeng, Mei Suzhen   +6 more
openaire   +1 more source

Modeling the operation of a medium voltage power grid with a compensated neutral at single-phase ground fault [PDF]

, 2018
В статье разработана расчетная модель сети среднего напряжения с тремя фидерами в среде Matlab, которая позволяет моделировать работу сети в режиме однофазного замыкания на землю.
Зорин, Евгений Юрьевич, Чепелюк, Александр Александрович   +1 more
core   +1 more source