Dynamic compensation of capacitive voltage transformers

Author

Izykowski, J. ; Kasztenny, B. ; Rosolowski, E. ; Saha, M.M. ; Hillstrom, B.

Author_Institution

Tech. Univ. Wroclaw, Poland

Volume

13

Issue

1

fYear

1998

fDate

1/1/1998 12:00:00 AM

Firstpage

116

Lastpage

122

Abstract

This paper presents the digital algorithm for on-line dynamic compensation of the secondary voltage of a capacitive voltage transformer (CVT). The adopted CVT model together with the assumed simplifications is given first. Next, the compensating algorithm based on digital inversion of the CVT transfer function is derived. Frequency domain analysis and quantitative evaluation of the compensation follow. The ATP-EMTP simulations are included that show the improvement of the measurement of protective criteria quantities as a result of dynamic compensation of a CVT

Keywords

compensation; digital simulation; frequency-domain analysis; potential transformers; power engineering computing; power transformer protection; relay protection; simulation; ATP-EMTP simulations; CVT transfer function; capacitive voltage transformers; digital algorithm; frequency domain analysis; on-line dynamic compensation; relay protection; secondary voltage compensation; Current transformers; Frequency domain analysis; Nonlinear distortion; Power system dynamics; Power system protection; Power system relaying; Power system transients; Protective relaying; Transfer functions; Voltage transformers;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.660865

Filename

660865