A frequency domain procedure for locating switched capacitors in power distribution systems

Author

Kim, Jiseong ; Grady, W. Mack ; Arapostathis, Ari ; Soward, John C. ; Bhatt, Sid C.

Author_Institution

Texas Univ., Austin, TX, USA

Volume

2

fYear

2000

fDate

2000

Firstpage

945

Abstract

This paper addresses the problem of determining, from transient voltage and current measurements at the substation, which capacitor in a multi-capacitor feeder switched on to cause the measured transient. The procedure is based upon frequency-domain analysis, where the Fourier transform of the recorded response is compared to those of simulations for all possible combinations of on-off capacitor states. The result is an automated procedure that can help electric utilities determine if their capacitors are switching properly, and also help pinpoint the source of capacitor switching-related power quality problems

Keywords

Fourier transforms; capacitor switching; distribution networks; electric current measurement; frequency-domain analysis; power supply quality; power system measurement; switching transients; transient analysis; voltage measurement; Fourier transform; capacitor switching; frequency domain procedure; frequency-domain analysis; multi-capacitor feeder; on-off capacitor states; power distribution systems; power quality problems; substation; switched capacitors location; transient current measurements; transient voltage measurements; Circuit testing; Current measurement; Frequency domain analysis; Frequency estimation; IEEE members; Impedance; Power capacitors; Power distribution; Power quality; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Summer Meeting, 2000. IEEE

Conference_Location

Seattle, WA

Print_ISBN

0-7803-6420-1

Type

conf

DOI

10.1109/PESS.2000.867499

Filename

867499