Results 11 to 20 of about 1,779 (134)

ANALIZA ZAKŁÓCEŃ W SIECIACH ELEKTROENERGETYCZNYCH WYWOŁANYCH WYŁADOWANIAMI PIORUNOWYMI

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2014
W artykule przedstawiono złożoność problematyki analizy stanów nieustalonych napięć pojawiających się w układzie elektroenergetycznym wskutek bezpośrednich wyładowań piorunowych do elementów konstrukcyjnych linii napowietrznej.
Mariusz Benesz, Rafał Tarko
doaj   +1 more source

Analysis of Very Fast Transients Using Black Box Macromodels in ATP-EMTP

open access: yesEnergies, 2020
Modelling for very fast transients (VFTs) requires good knowledge of the behaviour of gas insulated substation (GIS) components when subjected to high frequencies. Modelling usually takes the form of circuit-based insulation coordination type studies, in
Jonathan James   +4 more
doaj   +1 more source

Research on the arcing horn with active arc extinguishing function for HVDC grounding electrode line

open access: yesIET Generation, Transmission &Distribution, Volume 17, Issue 11, Page 2634-2643, June 2023., 2023
In this work, an active arc extinguishing method based on variable resistance for arcing horn was proposed. To design the arcing horn within active arc extinguishing function, the grounding electrode line and arcing horn model were established based on a ±800kV UHVDC transmission system. The electrical characteristics of the arcing horn were calculated
Yicen Liu   +6 more
wiley   +1 more source

Classification of voltage sags causes in industrial power networks using multivariate time‐series

open access: yesIET Generation, Transmission &Distribution, Volume 17, Issue 7, Page 1568-1584, April 2023., 2023
We propose a voltage sag cause classification method based on multivariate time series classification. The proposal offers easy implementation in industrial applications with no previous recorded data. The proposal has the benefit to use reduced size of the reference database, entirely composed of synthetic data.
Maria Veizaga   +4 more
wiley   +1 more source

Reclosing scheme using synchronism checking for utilization of BESS in distribution system

open access: yesJournal of Modern Power Systems and Clean Energy, 2017
This paper proposes a reclosing scheme using synchronism checking for utilization of battery energy storage system (BESS) in a distribution system. The algorithm disconnects the faulty phase and keeps the power supply from the BESS to the healthy phase ...
Hun-Chul SEO, Sang-Bong RHEE
doaj   +1 more source

The All-dq-domain Emtp [PDF]

open access: yes, 2011
This paper presents an improvement to dq-domain method of calculating electromagnetic transients. The proposed methodology works on dq-domain model for all components of the power system and during all time iterations.
Sianipar, G. H. (Gibson)
core   +2 more sources

Modulation Strategy for Multi-Phase Matrix Converter with Common Mode Voltage Elimination and Adjustment of the Input Displacement Angle

open access: yesEnergies, 2020
In the last several years, thanks to the development and continuous improvement of semiconductor switching elements, and the simultaneous increase in interest in multi-phase drives, the investigation into constructing multi-phase converters has been ...
Janina Rząsa
doaj   +1 more source

Proximity-Aware Calculation of Cable Series Impedance for Systems of Solid and Hollow Conductors [PDF]

open access: yes, 2014
Wide-band cable models for the prediction of electromagnetic transients in power systems require the accurate calculation of the cable series impedance as function of frequency.
Gustavsen, Bjorn   +2 more
core   +1 more source

Short Circuit Analysis of Power Distribution Network Including Distributed Generations [PDF]

open access: yesPort Said Engineering Research Journal, 2013
The crisis of traditional fuels in the world has become the main reason behind the search on renewable energy resources. Therefore, the researchers become interested with distributed generation (DG) and how to connect them with the main power network to ...
Doaa El-Hassanin   +2 more
doaj   +1 more source

Implementation of a non-conventional method to characterize voltage sags and swells

open access: yesDyna, 2016
Voltage sags and swells are among the power quality disturbances that represent the biggest economic losses for affected users. It is therefore necessary to undertake a suitable characterization of those events to conduct studies that permit the causes ...
Jorge Enrique Celis-Montero   +2 more
doaj   +1 more source

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