Results 11 to 20 of about 14,817 (259)
Application of Convolutional Neural Network in Fault Line Selection of Distribution Network
Journal of Applied Science and Engineering, 2021 Aiming at the problem that the effect of the existing fault line selection methods is mainly determined by the fault features constructed by manual extraction, and the fault feature extraction process is complex and time-consuming, a new method based on ...
Jingjing Tian +4 more
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Research of Method of On-line Fault Line Selection and Location of Underground Cable
Gong-kuang zidonghua, 2011 In order to solve problems that it is hard to confirm fault position when single-phase grounding fault happens in underground power supply system and existing off-line distance measured methods are poor in precision, the paper analyzed characteristics of
SUN Quan-cai, JIN Li
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Grounding Fault Line Selection by EMD and LSSVM [PDF]
Advances in Economics, Business and Management Research, 2015 According to the characteristics of transient zero sequence components as well as the existing information fusion technology has the disadvantage of high sample dimension and computer overhead in fault line selection in small current grounding fault . First of all, by using the empirical mode decomposition (EMD) and the Fast Fu Liye transform (FFT) on ...
Xiaofang Cao, Tianyi Qu
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Single‐pole fault line selection method for MVDC distribution grid based on 0‐mode power
IET Generation, Transmission & Distribution, 2021 At present, the MVDC distribution grid is developing rapidly and relay protection is the key technology to ensure stable operation. Therefore, this paper focuses on the fault line selection method.
Shuping Gao +4 more
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Meikuang Anquan, 2022 When a single-phase grounding fault occurs in the coal mine 10 kV power supply system, due to the low sampling frequency of the system, the traditional transient line selection method is easy to lose the “line selection information”, and is greatly ...
GUO Runshou, CAO Jiyuan
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A line selection method of mine leakage protectio
Gong-kuang zidonghua, 2020 Aiming at problem of low accuracy of line selection when single-phase grounding fault occurs in mine power supply system at present, according to characteristics of obvious difference of zero-sequence current waveform between fault line and non-fault ...
YU Qun, SHANG Xueli
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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 +4 more
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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 +5 more
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Gong-kuang zidonghua, 2014 In view of problems of complex fault situation and unobvious characteristics of fault signal of fault line selection method of existing small current grounding system, a fault line selection method of small current grounding system based on wavelet ...
WANG Xiaowei +3 more
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Journal of Hebei University of Science and Technology, 2021 In order to solve the problem that the fault line cannot be accurately identified after single-phase grounding fault occurs in power grid,an intelligent sensing method of residual current grounding fault based on wavelet packet decomposition was proposed.
Bingyu LI +5 more
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