Results 11 to 20 of about 395,883 (248)

Single-phase grounding fault line selection method based on zero-sequence current increment

open access: yesEnergy Reports, 2022
To address single-phase grounding fault line selection problem in small current grounding distribution network, the paper proposes a fault line selection method based on zero-sequence current (ZSC) increment.
Bai Hao
doaj   +3 more sources

Single-phase grounding fault line selection method based on dynamic time warping algorithm

open access: yesEnergy 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
doaj   +3 more sources

A Combined Method for Line Selection of Single Phase to Ground Fault in Compensated Distributions Based on Evidence Theory

open access: yesIEEE 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
doaj   +3 more sources

Single-Phase Fault Line Selection in Distribution Network Based on Signal Injection Method

open access: yesIEEE Access, 2021
The distribution network with small current grounding mode can ensure high power supply reliability, but it is difficult to locate single-phase grounding fault line. Most of the faults in distribution network are single-phase to ground fault.
Lin Niu, Guiqing Wu, Zhangsheng Xu
doaj   +3 more sources

A new approach to fault-line selection of small current neutral grounding system

open access: yesSystems Science & Control Engineering, 2018
In this paper, a new approach combining BP neural network with fuzzy Petri net (FPN) is developed to deal with the issue of fault-line selection of the small current neutral grounding system.
Yujie Chen   +4 more
doaj   +2 more sources

Fast Fault Line Selection Technology of Distribution Network Based on MCECA-CloFormer

open access: yesApplied Sciences
When a single-phase grounding fault occurs in resonant ground distribution network, the fault characteristics are weak and it is difficult to detect the fault line.
Can Ding   +3 more
doaj   +3 more sources

A Fault Line Selection Method for DC Distribution Network Using Multiple Observers

open access: yesEnergies, 2019
This paper proposes a method of fault line selection for a DC distribution network. Firstly, the 1-mode current is calculated using the measured currents of the positive and the negative line.
Xipeng Zhang   +4 more
doaj   +3 more sources

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

open access: yesGong-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
doaj   +1 more source

Fault line selection method for coal mine power grid based on RCMDE and KFCM

open access: yesGong-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
doaj   +1 more source

Continuous comprehensive line selection technology based on D-S evidence theory

open access: yesEnergy 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
doaj   +1 more source

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