Results 21 to 30 of about 114,797 (301)

A New Theory for Locating Line Fault in Power System: Simulation Part

open access: yesIEEE Access, 2019
Three time-reversal-based fault location methods are derived from the theoretical part of this paper, which is named currents-in-time-domain method, forward-currents-in-frequency-domain method, and forward-currents-in-frequency-domain-with-compensation ...
Xipeng Zhang   +5 more
doaj   +1 more source

A steady‐state analysis method for pole‐to‐pole faults under different transition resistances in voltage source converter‐based DC systems

open access: yesIET Generation, Transmission & Distribution, 2021
Fault analysis is an essential prerequisite for fault detection, location and isolation. A detailed fault analysis method on the steady state of the pole‐to‐pole fault for voltage source converter (VSC) based DC systems is presented in this paper ...
Zhengguang Xiao   +4 more
doaj   +1 more source

Fault Indicators of Partial Discharges in Medium-Voltage Systems

open access: yesAdvances in Electrical and Electronic Engineering, 2013
The safety and reliability of the electricity system, these are the two basic keywords present in the energy sector. One of the ways to improve the overall security of the electricity system is to reduce the failure rate of transmission lines.
Stefan Hamacek, Stanislav Misak
doaj   +1 more source

Superconducting fault current limiter application in a power-dense marine electrical system [PDF]

open access: yes, 2011
Power-dense, low-voltage marine electrical systems have the potential for extremely high fault currents. Superconducting fault current limiters (SFCLs) have been of interest for many years and offer an effective method for reducing fault currents.
Blair, Steven Macpherson   +5 more
core   +1 more source

Analysis on characteristic of DC short-circuit fault in multi-terminal AC/DC hybrid distribution network

open access: yesThe Journal of Engineering, 2019
The AC/DC hybrid distribution network takes advantage of both AC and DC technologies. It is one of the most important forms of future distribution systems.
Xiaomin Qi   +5 more
doaj   +1 more source

Analytical Optimal Currents for Multiphase PMSMs Under Fault Conditions and Saturation [PDF]

open access: yes, 2014
An original analytical expression is presented in this paper to obtain optimal currents minimizing the copper losses of a multi-phase Permanent Magnet Synchronous Motor (PMSM) under fault conditions.
FLIELLER, Damien   +3 more
core   +5 more sources

Wavelet-based EMTR method for fault location of VSC-HVDC transmission lines

open access: yesThe Journal of Engineering, 2018
A wavelet-based electromagnetic time reversal method for locating faults in voltage source converter-high-voltage direct current (VSC-HVDC) transmission lines is proposed in this study.
Xipeng Zhang   +4 more
doaj   +1 more source

Using Matlab/Simulink Software Package to Investigate Fault Behaviors in HVDC System

open access: yesMathematics, 2022
Existing studies show that several performance issues will arise in the HVDC link during the three phase-to-ground fault at the side of the inverter and that the DC voltage will oscillate around zero and will not affect the rectifier of the AC system ...
Olumoroti Ikotun   +3 more
doaj   +1 more source

An equivalent circuit for the evaluation of cross-country fault currents in medium voltage (MV) distribution networks [PDF]

open access: yes, 2018
A Cross-Country Fault (CCF) is the simultaneous occurrence of a couple of Line-to-Ground Faults (LGFs), affecting different phases of same feeder or of two distinct ones, at different fault locations.
Gatta, Fabio Massimo   +3 more
core   +1 more source

The Applicability of Traditional Protection Methods to Lines Emanating from VSC-HVDC Interconnectors and a Novel Protection Principle

open access: yesEnergies, 2016
Voltage source converter (VSC)-based high voltage direct current (VSC-HVDC) interconnectors can realize accurate and fast control of power transmission among AC networks, and provide emergency power support for AC networks. VSC-HVDC interconnectors bring
Shimin Xue   +6 more
doaj   +1 more source

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