Results 11 to 20 of about 11,373,640 (309)

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

An intelligent protection scheme to deal with extreme fault currents in smart power systems

open access: yes, 2020
In modern power systems, the generation capacity is increasing significantly for responding to high electric energy demands. This generation expansion directly affects the level of short circuit in transmission systems and increases the fault current ...
M. M. Esfahani, O. Mohammed
semanticscholar   +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

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

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

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

An ANN-based protection technique for MTDC systems with multiple configurations

open access: yesAlexandria Engineering Journal, 2023
A unified protection technique for different configurations of Multi-Terminal high voltage Direct Current (MTDC) systems is presented in this paper. The technique is based on using positive and negative poles’ currents of one end for each line.
Ahmed E.B. Abu-Elanien, M.M.A. Salama
doaj   +1 more source

An SMMBG-Based Relaying Technique for Detection and Categorization of Faults in TCSC-Compensated Transmission Lines [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2020
This paper presents a relaying technique for detection and categorization of various types of faults such as intermittent faults (IFs), bus faults (BFs), and multi-position faults (MPFs) in transmission lines with TCSC-compensation including faults under
KAPOOR Gaurav
doaj  

ДОСЛІДЖЕННЯ ВПЛИВУ ВЕУ НА ВЕЛИЧИНУ СТРУМУ МІЖФАЗНОГО КОРОТКОГО ЗАМИКАННЯ ЧЕРЕЗ ЕКРАНИ КАБЕЛІВ МЕРЕЖІ ВЕС НАПРУГОЮ 1035 кВ

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2020
Shown the principle for calculation of double-fault ground current on a branch of electric power network with two sources (one of the sources can be a wind electric plant while the other source can be a power line).
Р.О.Буйний   +3 more
doaj   +1 more source

Thruster Fault Diagnostics and Fault Tolerant Control for Autonomous Underwater Vehicle with Ocean Currents

open access: yesMachines, 2022
Autonomous underwater vehicle (AUV) is one of the most important exploration tools in the ocean underwater environment, whose movement is realized by the underwater thrusters, however, the thruster fault happens frequently in engineering practice.
Qunhong Tian   +3 more
doaj   +1 more source

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