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A fault line selection method for small current grounding system
Gong-kuang zidonghua, 2013 In view of problem that fault line selection method for small current grounding system is difficult to be suitable for different grounding modes, the paper proposed a fault line selection method for small current grounding system based on RBF neural ...
SHI Dan, SHAO Ru-ping, XU Ju
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A new approach to fault-line selection of small current neutral grounding system [PDF]
Systems 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
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Frontiers in Energy ResearchIn small-current grounding systems, the fault current during a single-phase grounding fault is small, and the transient process is complex, leading to challenges in line selection accuracy and reliability.
Guangfen Wan, Xuekun Xu
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Simulation and Experiment Analysis of 10 kV Flexible Grounding Device
Information, 2021 The traditional 10 kV distribution network grounding system has some disadvantages, such as small grounding current and poor arc extinguishing effect, thus, hindering the detection of high-resistance grounding fault.
Mengxuan Liu, Chi Zhang, Kangli Liu
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Energy Reports, 2022 In order to enhance the security of ±800 kV High-Voltage DC (HVDC) system, it is needed to consider and analyze the grounding mode of the neutral point of converter transformer.
Jiaqing Fu +4 more
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Zhejiang dianli, 2023 In order to use the existing hardware sources to improve the line selection performance of single-phase grounding fault of small resistance grounding systems， a method for line selection of single-phase grounding fault based on the global steady-state ...
LIU Jian +4 more
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Study on safety operation of medium voltage distribution network [PDF]
E3S Web of Conferences, 2021 Aiming at the problem of safe operation in the medium voltage distribution network with neutral point grounding through small resistance, the distribution network model was built, and on this basis, MW-level photovoltaic (PV) system, doubly fed Induction
Chen Xiaofang +3 more
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Research on Accurate Fault Location of Small Current Grounding System
Journal of Physics: Conference Series, 2023 Abstract Based on the principles of single-end fault ranging and signal injection method, a method of identifying fault distance parameters based on disturbance signal injection is proposed. The simulation calculation results verify that the method can effectively exclude the influence of line distribution capacitance on fault location ...
Denghui Liu, Cheng Hao
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A new active method for ground fault location in small current grounding system [PDF]
2018 18th International Conference on Harmonics and Quality of Power (ICHQP), 2018 A new method for single-phase grounding fault location in small current grounding system is proposed, in which thyristor-based signal generator (SG) and signal detectors (SD) are included. The thyristor-based SG is connected between the phase line and ground, and SDs are arrayed along the distribution lines. After a single-phase grounding fault occurs,
Xiaojing Wang +3 more
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Zhejiang dianli, 2023 With its connection to distribution networks， the inverter-interfaced distributed generators （IIDGs） affect single-phase grounding detection and jeopardize their safe and stable operation. Based on the characteristics of IIDGs and sequence network theory，
JIANG Miao +3 more
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