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Traveling waves based fault line selection using sparse representation
2019 IEEE 8th International Conference on Advanced Power System Automation and Protection (APAP), 2019Traveling wave method has been proved to be effective in fault line selection of power distribution system with the neutral non-effectively grounded. However, it can be easily disturbed by non-faulty traveling wave when selecting the line. For this reason, this paper proposes a new traveling wave line selection method based on sparse representation, in
Wen Xu +3 more
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Automatic fault line selection technology for small current grounding system
2017 2nd International Conference on Power and Renewable Energy (ICPRE), 2017The low voltage distribution network in our country widely adopts non-direct grounding system, called as small current grounding system. Single-phase ground fault is the most common occurrence for this system. Now, some power supply departments in our country still recognize fault lines by traditional artificial method, meaning low efficiency and ...
Ge Beichang +5 more
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A New Method for Fault line Selection of Four-Parallel Transmission Lines
2010 Asia-Pacific Power and Energy Engineering Conference, 2010Based on the theory of twelve sequence components, this paper analyzes the single circuit line fault characteristics of four-parallel transmission lines on the same tower. By use of the relationship of different amplitudes and phases between each sequence components, a new method is proposed for fault line selection of four-parallel transmission lines.
Peng Xu +4 more
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Fault Line Selection with Parallel Supply Lines in Mine Power Systems
Advanced Materials Research, 2012In mine power systems, false operation and failure operation of relays in parallel supply lines often take place when single phase grounding fault occurs. A novel method based on phase-to-phase current difference is proposed as line selection criterion in this paper.
Chong Lin Wang, Jian Xin
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Research on Ground Fault Line Selection Method Based on Zero Sequence Admittance
2020 IEEE International Conference on Information Technology,Big Data and Artificial Intelligence (ICIBA), 2020In this paper, a small current ground fault line selection system model is established under Matlab/Simulink environment. By setting the line parameters and simulation parameters, the fault simulation of the neutral point through the arc suppression coil grounding mode is completed. The characteristics of the single-phase grounding fault of the neutral
Yu Chai, Xin Chen, Kun Zhang
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Fast S-transform for fault line selection in distribution network system
2018 13th IEEE Conference on Industrial Electronics and Applications (ICIEA), 2018The current of the distribution networks under 66kV is widely operating in small current grounding mode. The problem of extracting the fault feature in each line would be quite difficult due to the short duration of the transient zero sequence current with the non-stationary and non-linear characteristics when the single-phase-to-ground fault occurs in
Jiao Shang-bin +4 more
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A Fault Line Selection Method by Resistive Current for Single-Phase Earth Fault in Network
Proceedings of the 2nd International Conference on Information Technologies and Electrical Engineering, 2019Aiming at the question of selecting fault line when single-phase grounded in neutral "point" ineffective ground system, according to resistive current, a criterion of line selection is proposed, and its feasibility is analyzed in depth. When the system detects zero-sequence voltage, the medium resistance is put into the neutral point of the system, and
Ning Wang, Jian Liu, Miaomiao Song
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The Application of Improved D-S Evidence Theory to Single-Phase Fault Line Selection
2009 Second International Symposium on Computational Intelligence and Design, 2009To overcome the poor accuracy of fault line selection in small current grounded system, which induced by the reliability of symptom and the correlation symptom terms, a novel fault line selection method is proposed based on improved D-S evidence theory in the paper.
Jianjun Zhao +4 more
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A fault line selection algorithm using neural network based on S-transform energy
2010 Sixth International Conference on Natural Computation, 2010An approach to detect fault line in distribution network using neural network based on S-transform energy is proposed und after analyzing the variance of fault characteristic frequency of zero sequence current in each feeder line of overhead line and underground cable mixed lines.
Hongchun Shu +3 more
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Convolutional Neural Network and Low Current Fault Line Selection
2023 IEEE Sustainable Power and Energy Conference (iSPEC), 2023Li Rong +6 more
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