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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 +5 more
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Fault line selection method for coal mine power grid based on RCMDE and KFCM
Gong-kuang zidonghua, 2022 It is difficult to accurately select the fault line when the single-phase ground fault occurs in the coal mine power grid with the widely used resonant grounding system.
HAN Guoguo +4 more
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Continuous comprehensive line selection technology based on D-S evidence theory
Energy Reports, 2022 Aiming at the single-phase grounding fault in 380 V three-phase AC power system with ungrounded neutral, a fault line selection method considering zero sequence current ratio method, zero sequence current phase ratio method and dual frequency method is ...
Kechang Dai, Zhihao Ye, Liang Chen
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Frontiers in Energy Research, 2022 It is important to select the fault line rapidly when single-phase grounding fault occurs in the small current grounding system. The fault information acquisition of existing methods generally need hardware modification, so the high cost makes it ...
Junyang Tian +4 more
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IEEE Access, 2023 In order to improve reliability of distributions, the neutrals are usually insulated or compensated with Peterson coil. Thus, the currents of single-phase to ground fault are weak, leading to difficulty in fault line selection problem.
Jie Sun +5 more
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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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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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Single-phase grounding fault line selection method based on dynamic time warping algorithm
Energy Reports, 2022 Aiming at the problems of the complex line selection process and slow line selection speed of the existing intelligent classification line selection methods, a single-phase grounding fault line selection method based on the dynamic time warping (DTW ...
Kongxian Wang +3 more
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