Title :
Dynamic compensation of capacitive voltage transformers
Author :
Izykowski, J. ; Kasztenny, B. ; Rosolowski, E. ; Saha, M.M. ; Hillstrom, B.
Author_Institution :
Tech. Univ. Wroclaw, Poland
fDate :
1/1/1998 12:00:00 AM
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;
Journal_Title :
Power Delivery, IEEE Transactions on
