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Statements

Subject Item
n2:RIV%2F49777513%3A23220%2F13%3A43921812%21RIV14-MSM-23220___
rdf:type
skos:Concept n12:Vysledek
dcterms:description
Very fast transient phenomena on transmission overhead lines caused by lightning strokes generate very high peak value of voltage and current. It is necessary to know not only these values but their place on the line, too. That is why a complex analysis of surge phnenomena should provide the time-space distribution of voltage and current along the whole line. It enables an approach using model of transmission lines created as a circuit with distributed parameters which can be described by system of partial differential equations of hyperbolic type. Our algorithm for the numerical solution of these equation is based on FDTD methods (Wendroff's difference formulae) and enables to investigate many interesting practical poblems. It allows to take into account homogenous and non-homogenous lossy lines, time and space varying parameters, various shapes of lightning stroke surge waves and various manners of line ending (short-circuits, unloaded, matched or unmatched lines). Our algorithm can be used for an analysis of very fast transient phenomena caused by atmospheric discharges in various structures (overhead lines, cable line and their connection including arrester, line tower or communication towers). Very fast transient phenomena on transmission overhead lines caused by lightning strokes generate very high peak value of voltage and current. It is necessary to know not only these values but their place on the line, too. That is why a complex analysis of surge phnenomena should provide the time-space distribution of voltage and current along the whole line. It enables an approach using model of transmission lines created as a circuit with distributed parameters which can be described by system of partial differential equations of hyperbolic type. Our algorithm for the numerical solution of these equation is based on FDTD methods (Wendroff's difference formulae) and enables to investigate many interesting practical poblems. It allows to take into account homogenous and non-homogenous lossy lines, time and space varying parameters, various shapes of lightning stroke surge waves and various manners of line ending (short-circuits, unloaded, matched or unmatched lines). Our algorithm can be used for an analysis of very fast transient phenomena caused by atmospheric discharges in various structures (overhead lines, cable line and their connection including arrester, line tower or communication towers).
dcterms:title
New approach to lightning surge analysis on overhead lines New approach to lightning surge analysis on overhead lines
skos:prefLabel
New approach to lightning surge analysis on overhead lines New approach to lightning surge analysis on overhead lines
skos:notation
RIV/49777513:23220/13:43921812!RIV14-MSM-23220___
n12:predkladatel
n13:orjk%3A23220
n3:aktivita
n18:I
n3:aktivity
I
n3:dodaniDat
n6:2014
n3:domaciTvurceVysledku
n7:3081656 n7:7966334 n7:2633280
n3:druhVysledku
n20:D
n3:duvernostUdaju
n8:S
n3:entitaPredkladatele
n11:predkladatel
n3:idSjednocenehoVysledku
91521
n3:idVysledku
RIV/49777513:23220/13:43921812
n3:jazykVysledku
n21:eng
n3:klicovaSlova
FDTD method; overhead lines; surge analysis
n3:klicoveSlovo
n9:surge%20analysis n9:overhead%20lines n9:FDTD%20method
n3:kontrolniKodProRIV
[F7D2FA3061EA]
n3:mistoKonaniAkce
Seoul, Korea
n3:mistoVydani
Seoul
n3:nazevZdroje
ISH 2013 : proceedings : 18th International Symposium on High Voltage Engineering
n3:obor
n4:JA
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n6:2013
n3:tvurceVysledku
Haller, Rainer Kotlan, Václav Benešová, Zdeňka
n3:typAkce
n15:WRD
n3:zahajeniAkce
2013-08-25+02:00
s:numberOfPages
6
n16:hasPublisher
Hanyang University
n17:isbn
978-89-86510-18-8
n19:organizacniJednotka
23220