Results 11 to 20 of about 262,158 (170)
Single-ended differential protection in MTDC networks using optical sensors [PDF]
, 2017 This paper presents a method for rapid detection of faults on VSC multi-terminal HVDC transmission networks using multi-point optical current sensing.
Booth, Campbell David +8 more
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Frontiers in Energy Research, 2021 Flexible direct current (DC) grid can realize large-scale renewable energy, wide-area coordinated complementation, and reliable power transmission. It is an important development that can be used to support high-voltage and large-capacity flexible DC ...
Yinfeng Sun +6 more
doaj +1 more source
Известия высших учебных заведений: Проблемы энергетики, 2019 . A method is proposed for calculating the initial value of the periodic term of the short- circuit strength of a dual-circuit overhead transmission line using multiphase replacement circuits. The method takes into account the electromagnetic connections
R. U. Galeeva +2 more
doaj +1 more source
IET Generation, Transmission & Distribution, 2021 Due to the low impedance of DC (Direct Current) power transmission line, short‐circuit current has a very high increment speed, which causes problems as difficulty in current limitation method.
Chaoran Zhuo +3 more
doaj +1 more source
A novel fault location method for a cross-bonded hv cable system based on sheath current monitoring [PDF]
, 2018 In order to improve the practice in the operation and maintenance of high voltage (HV) cables, this paper proposes a fault location method based on the monitoring of cable sheath currents for use in cross-bonded HV cable systems.
Huang, Xiaojun +6 more
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International Journal of Electrical Power & Energy Systems, 2016 Abstract In power system, there are partial coupling lines under different voltage level because of the development of power system. When faults occur on these lines, zero-sequence mutual impedances bring difficulty to short-circuit calculation. To solve the problem, a new method is proposed in this paper.
Chunju Fan, Kan Xu, Qi Liu
openaire +1 more source
IEEE Access, 2021 Accurate and fast fault detection in transmission lines is of high importance to maintain the reliability of power systems. Most of the existing methods suffer from false detection of high-impedance faults.
Hamid Teimourzadeh +4 more
doaj +1 more source
An Effective EMTR-Based High-Impedance Fault Location Method for Transmission Lines
, 2020 This paper summarizes the electromagnetic time reversal (EMTR) technique for fault location, and further numerically validates its effectiveness when the fault impedance is negligible. In addition, a specific EMTR model considering the fault impedance is
An, Jianwei +3 more
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Influence Mechanism and Suppression Control of the MMC on Short-Circuit Current Under AC Faults
IEEE Access, 2020 Modular multilevel converter based high voltage direct current (MMC-HVDC) transmission systems may increase the short-circuit current and affect the AC fault clearing of circuit breakers.
Jian Yang +3 more
doaj +1 more source
Efficient transient simulation of transmission lines [PDF]
, 2002 The paper focuses on revealing the salient structural aspects of a new transmission-line model with a view to exploiting them for gains in efficiency and accuracy. The new transmission-line model has as its basis the Telegraphers Equations but the manner
Condon, Marissa
core +1 more source