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Statements

Subject Item
n2:RIV%2F49777513%3A23220%2F01%3A00064634%21RIV%2F2002%2FMSM%2F232202%2FN
rdf:type
n5:Vysledek skos:Concept
dcterms:description
Voltage dips (sags), mainly caused by remote short circuits, are generally considered the serious power quality problem. Their effect on an operation of sensitive equipment is the same like the effect of short supply interruptions. The knowledge about occurrence of a voltage dips in a network as a function of their magnitude and duration can be obtained through the use of power quality monitors or by means of prediction methods. This paper compares advantages and disadvantages of the voltage dips monitoring and the prediction methods, and limitations of their practical using for the prediction of the number of voltage dips in the power system. The principles of two prediction methods (the method of fault positions and the method of critical distances) are mentioned. The method of fault positions is applied to the real 110 kV grid. The accuracy of the prediction method is evaluated on the basis of the comparison with the outcome of the voltage dip monitoring. Voltage dips (sags), mainly caused by remote short circuits, are generally considered the serious power quality problem. Their effect on an operation of sensitive equipment is the same like the effect of short supply interruptions. The knowledge about occurrence of a voltage dips in a network as a function of their magnitude and duration can be obtained through the use of power quality monitors or by means of prediction methods. This paper compares advantages and disadvantages of the voltage dips monitoring and the prediction methods, and limitations of their practical using for the prediction of the number of voltage dips in the power system. The principles of two prediction methods (the method of fault positions and the method of critical distances) are mentioned. The method of fault positions is applied to the real 110 kV grid. The accuracy of the prediction method is evaluated on the basis of the comparison with the outcome of the voltage dip monitoring.
dcterms:title
Prediction of voltage dips in an electric power system Prediction of voltage dips in an electric power system
skos:prefLabel
Prediction of voltage dips in an electric power system Prediction of voltage dips in an electric power system
skos:notation
RIV/49777513:23220/01:00064634!RIV/2002/MSM/232202/N
n3:strany
S. 232-236
n3:aktivita
n17:Z
n3:aktivity
Z(MSM 232200008)
n3:dodaniDat
n18:2002
n3:domaciTvurceVysledku
n13:7305087
n3:druhVysledku
n12:D
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n16:predkladatel
n3:idSjednocenehoVysledku
692387
n3:idVysledku
RIV/49777513:23220/01:00064634
n3:jazykVysledku
n10:eng
n3:klicovaSlova
Dip; power quality; failure rate; electric grid; short circuit analysis;
n3:klicoveSlovo
n6:electric%20grid n6:failure%20rate n6:Dip n6:power%20quality n6:short%20circuit%20analysis
n3:kontrolniKodProRIV
[FC259FC27EA7]
n3:mistoKonaniAkce
Neuveden
n3:mistoVydani
Neuveden
n3:nazevZdroje
Prediction of voltage dips in an electric power system
n3:obor
n20:JE
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
1
n3:pocetUcastnikuAkce
0
n3:pocetZahranicnichUcastnikuAkce
0
n3:rokUplatneniVysledku
n18:2001
n3:tvurceVysledku
Tesařová, Miloslava
n3:typAkce
n11:CST
n3:zahajeniAkce
2001-01-01+01:00
n3:zamer
n14:MSM%20232200008
s:numberOfPages
5
n15:hasPublisher
Neuveden
n9:organizacniJednotka
23220