Results 21 to 30 of about 10,146,497 (282)

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

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, Hai-Feng Li, G. Wang
semanticscholar   +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

Research on Arc Grounding Fault Selection Method of Distribution Network Based on Wavelet Analysis [PDF]

Zhengzhou Daxue xuebao. Gongxue ban, 2023
Chinese urban low-voltage distribution network capacitance current rose sharply, single-phase ground fault arc was difficult to self-extinguish and easy to produce arc light ground overvoltage and lead to accidents.
LI Jingli, REN Junyue, YUAN Hao, WANG Zijian, LEI Hong, ZHAO Zijing   +5 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.
Hong-Bo Wei, Hua Wei, Zhongliang Lyu, Xiaoqing Bai, Jun-Yang Tian   +4 more
semanticscholar   +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

Analysis of single phase ground fault characteristics of low resistance ground active distribution network

Journal of Physics: Conference Series, 2021
A large number of distributed generators access to low resistance grounding system may have great influence on the fault characteristics of single phase ground. In view of low resistance ground active distribution network, the connection mode of Inverter-
Na Wu, Zi-Hui Liu, Shu-Xian Fan, Long-chang Dong, Zheng-Xiang Yang, Chengxiang Zhou   +5 more
semanticscholar   +1 more source

A novel superimposed voltage energy‐based approach for single phase to ground fault detection and location in distribution networks

IET Generation, Transmission & Distribution, 2023
The structure complexity and the extended geographical area are among the factors that create challenges in accurate fault location and detection in distribution networks.
Sajjad Miralizadeh Jalalt, Sepideh Miralizadeh, V. Talavat, Tohid Ghanizadeh Boalndi   +3 more
semanticscholar   +1 more source

Vectorial Approach Based Control of a Seven-Phase Axial Flux Machine Designed for Fault Operation [PDF]

, 2008
Version éditeur disponible à l'adresse suivante : http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4519973&isnumber=4636792This paper deals with easy-to-implement control strategies when a seven-phase axial flux permanent magnet machine supplied ...
LOCMENT, Fabrice, E. Semail, KESTELYN, Xavier, F. Locment, SEMAIL, Eric, X. Kestelyn   +5 more
core   +2 more sources

Single phase to ground fault location method of overhead line based on magnetic field detection and multi-criteria fusion

International Journal of Electrical Power & Energy Systems, 2023
—The distribution network has many branches and complex structure, and the existing protection is difficult to achieve accurate fault section location.
Xiaowei Wang, Hua Du, Zhenfeng Liang, Liang Guo, Jie Ying Gao, M. Kheshti, Weibo Liu   +6 more
semanticscholar   +1 more source