Results 21 to 30 of about 1,140 (275)
Energies, 2021 The design of every power supply system must guarantee the safety for human life even in the event of a fault. Due to the system change in the electrical power supply, the fault current contains more and more unknown shares of current harmonics ...
Benjamin Küchler +2 more
doaj +2 more sources
EnergiesTo address challenges in locating high-impedance grounding faults (HIGFs) and isolating fault areas in resonant grounding systems, this paper proposes a novel fault identification method based on coordinating a Peterson coil and a resistance grounding ...
Zhengyang Li +4 more
doaj +2 more sources
Simulation Analysis of Single-phase Grounding Fault of Resonant Grounding System
Gong-kuang zidonghua, 2012 For problem of difficult line selection caused by small current of fault line with uncertain direction when single-phase grounding fault happens in resonant grounding system, the paper theoretically analyzed change law of zero-sequence voltage and zero ...
LI Hui, TANG Yi, SUN Chang-qing
doaj +1 more source
电力工程技术When the earth faults occur in different phases of two feeders connected to the same bus in the resonant grounding system, the conventional fault line selection devices are inaccurate.
HAN Jie +5 more
doaj +2 more sources
EnergiesThis article is the authors’ last contribution to a trilogy of research papers submitted to Energies’ Special Issue on Electromagnetic Field Computation, aimed at the theoretical analysis and numerical computation of the frequency-dependent complex ...
José Brandão Faria +3 more
doaj +2 more sources
Faulty feeder selection based on improved Hough transform in resonant grounded distribution networks
International Journal of Electrical Power & Energy SystemsDue to the weak fault characteristics and inaccurate fault line selection during high impedance faults, this paper proposes a new method for fault line selection in resonant grounded distribution networks based on improved Hough transform.
Xiaowei Wang +5 more
doaj +2 more sources
Single-Line-to-Ground Fault Location in Resonant Grounded Systems Based on Fault Distortions [PDF]
IEEE Access, 2021 Under single-line-to-ground (SLG) faults, the voltages and currents in resonant grounded systems will inevitably be distorted. To locate the faults quickly and accurately, this paper proposes a location method based on fault distortions. The faulty phase is firstly detected according to the first SLG fault feature below, and then the faulty feeder and ...
Yougen Chen +3 more
openaire +2 more sources
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
doaj +1 more source
电力工程技术, 2023 With the improvement of the requirements for the safe operation of distribution network lines, the harmonics injected by distributed power generation make the existing line selection methods ineffective, and the fault line selection method with a single ...
LI Yan +4 more
doaj +1 more source
Harmonic Resonance Stability of Aeronautical Ground Lighting Systems [PDF]
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2018 Aeronautical ground lighting (AGL) systems assist aircraft pilots in airport operations. These systems are singlephase series circuits where constant current regulators (CCRs) feed luminaires with an adjustable rms current. CCRs are voltage source converters (VSCs) which may cause harmonic resonance instabilities when their control interacts with ...
Vidal, Daniel +2 more
openaire +4 more sources