Prediction of voltage dips in an electric power system

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Prediction of voltage dips in an electric power system

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Prediction of voltage dips in an electric power system

Popis výsledku anglicky

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.

Druh

D - Stať ve sborníku

CEP obor

JE - Nejaderná energetika, spotřeba a užití energie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2001

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Prediction of voltage dips in an electric power system

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

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Název nakladatele

Neuveden

Místo vydání

Neuveden

Místo konání akce

Neuveden

Datum konání akce

1. 1. 2001

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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