Differences in Voltage Dip Exposure Depending Upon Phase-to-Phase and Phase-to-Neutral Monitoring Connections

Author

Leborgne, Roberto Chouhy ; Olguin, Gabriel ; Filho, José Maria Carvalho ; Bollen, Math H J

Author_Institution

Chalmers Univ. of Technol., Goteborg

Volume

22

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1153

Lastpage

1159

Abstract

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

Keywords

fault diagnosis; power system measurement; transmission networks; SARFI-70; SARFI-90; SARFI-ITIC; average voltage dip amplitude; cumulative distribution frequency; load connection level; phase-to-neutral monitoring connections; phase-to-phase monitoring; transmission networks; Frequency; IEC standards; Monitoring; Phase estimation; Power quality; Power system measurements; Power system simulation; Threshold voltage; Voltage fluctuations; Voltage measurement; Indices; method of fault positions; power quality; power system measurements and voltage dips (sags);

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2007.893436

Filename

4141130