Title :
Modelling and parameter estimation of power transformers for the study of high frequency system transients
Author :
Keyhani, A. ; Tsai, H. ; Sebo, S.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
A multistage transformer model for high-frequency transient operation is established, and its time-domain and frequency-domain mathematical formulations are given. Techniques to estimate the equivalent circuit parameters are introduced based on their mathematical formulation. The emphasis is on the identification of the parameters through the instrumental variable method in time domain and the maximum neighborhood method in frequency domain. Detailed models are formulated for the estimation. The estimation results for the single-stage lumped parameter model are given
Keywords :
equivalent circuits; frequency-domain analysis; parameter estimation; power transformers; time-domain analysis; transients; equivalent circuit parameters; frequency-domain mathematical formulations; high frequency system transients; identification; instrumental variable method; mathematical formulation; maximum neighborhood method; multistage transformer model; parameter estimation; power transformers; single-stage lumped parameter model; time-domain formulations; Core loss; Economic indicators; Frequency domain analysis; Frequency estimation; Least squares approximation; Mathematical model; Parameter estimation; Power system modeling; Power transformers; Resonance;
Conference_Titel :
Circuits and Systems, 1989., Proceedings of the 32nd Midwest Symposium on
Conference_Location :
Champaign, IL
DOI :
10.1109/MWSCAS.1989.101842
