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Differences in voltage dip exposure depending upon phase-to-phase and phase-to-neutral monitoring connections

Roberto Chouhy Leborgne (Institutionen för energi och miljö, Elteknik) ; Gabriel Olguin ; José Maria Carvalho Filho ; Math H.J. Bollen
IEEE Vol. 22 (2007), 2, p. 1153-59.
[Artikel, refereegranskad vetenskaplig]

Voltage dip indices are estimated for a set of simulated and measured events. The simulated dips are obtained applying the method of fault positions on a large transmission network and the measured dips come from a one-year survey. The indices estimated to compare phase-to-phase and phase-to-neutral dips are SARFI-90, SARFI-70, SARFI-ITIC and average voltage dip amplitude. Furthermore, the results are analyzed in terms of the cumulative distribution frequency of the voltage dip amplitude. The comparison of phase-to-phase and phase-to-neutral indices indicates that, at transmission level, phase-to-neutral dips are more frequent and more severe than phase-to-phase ones. However, these differences are reduced at the load connection level, where the phase- and line-voltages show similar performance for the monitored system.

Nyckelord: Indices, method of fault positions, power quality, power system measurements and voltage dips (sags).



Denna post skapades 2007-04-20. Senast ändrad 2012-01-26.
CPL Pubid: 40756

 

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Institutioner (Chalmers)

Institutionen för energi och miljö, Elteknik (2005-2017)

Ämnesområden

Elektroteknik och elektronik
Elektroteknik
Elkraftteknik

Chalmers infrastruktur

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