Reduced order transmission line modeling for improved efficiency in the calculation of electromagnetic transients

Author

Soysal, A. Oguz ; Semlyen, Adam

Author_Institution

Dept. of Electr. Eng., Toronto Univ., Ont., Canada

Volume

9

Issue

3

fYear

1994

fDate

8/1/1994 12:00:00 AM

Firstpage

1494

Lastpage

1498

Abstract

A direct method based on the linear least squares approach is applied for obtaining reduced order approximations of the propagation and characteristic admittance transfer functions of transmission lines for use in calculation of transients. The practical level of the acceptable error is discussed in terms of the precision of the frequency domain input data. The proposed approach provides satisfactory accuracy with a small number of real and/or complex poles. The low order approximation could improve the efficiency of the EMTP by reducing the computation time

Keywords

electric admittance; electromagnetic interference; frequency-domain analysis; least squares approximations; power system analysis computing; power system transients; power transmission lines; transfer functions; transmission network calculations; EMTP; acceptable error; admittance transfer functions propagation; efficiency improvement; electromagnetic transients calculation; frequency domain input data; poles; reduced order transmission line modeling; Admittance; EMTP; Electromagnetic modeling; Electromagnets; Frequency domain analysis; Least squares approximation; Power system modeling; Power transmission lines; Transfer functions; Transmission lines;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.336112

Filename

336112