LabVIEW Application for Monitoring of Voltage Events in Supply System

LabVIEW Application for Monitoring of Voltage Events in Supply System

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The paper deals with problems about precise detection of voltage events occured in public supply networks. Voltage events (voltage dips, short interruptions and voltage swells) are disturbing phenomena which have a negative influence to proper operation of all connected electric appliances. Voltage events are considered as two dimensional phenomena whereas residual voltage and time duration of voltage event are their description parameters. For their detection voltage event monitors and analyzers are used. Each voltage event monitor operates along with used detection algorithm which is implemented onto it. Although several types of detection algorithms are known most of actually used voltage event monitors and analyzers have implemented detection algorithm based on computation of root mean square value of voltage over a cycle of voltage signal period - algorithm is known and signed as RMS (1/2) method. The paper presents a virtual LabVIEW application of voltage event monitor which has implemented also others detection algorithms than only RMS method.

The paper deals with problems about precise detection of voltage events occured in public supply networks. Voltage events (voltage dips, short interruptions and voltage swells) are disturbing phenomena which have a negative influence to proper operation of all connected electric appliances. Voltage events are considered as two dimensional phenomena whereas residual voltage and time duration of voltage event are their description parameters. For their detection voltage event monitors and analyzers are used. Each voltage event monitor operates along with used detection algorithm which is implemented onto it. Although several types of detection algorithms are known most of actually used voltage event monitors and analyzers have implemented detection algorithm based on computation of root mean square value of voltage over a cycle of voltage signal period - algorithm is known and signed as RMS (1/2) method. The paper presents a virtual LabVIEW application of voltage event monitor which has implemented also others detection algorithms than only RMS method.

voltage event, voltage event monitor, rms method

voltage event, voltage event monitor, rms method

BOK, J.

2011

28.04.2011

NOVPRESS s.r.o., nám. Republiky 15, 614 00 Brno

VUT v Brně, FEKT a FIT

978-80-214-4273-3

Proceedings of the 17th conference Student EEICT 2011, Volume 3

3

1

5

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