Early-time behavior of the ground transient resistance of overhead lines

Author

Loyka, S. ; Kouki, A.

Author_Institution

Dept. of Electr. Eng., Ecole de Technologie Superieure, Montreal, Que., Canada

Volume

1

fYear

2001

fDate

2001

Firstpage

222

Abstract

Ground resistance gives a substantial contribution to the transient response of overhead power transmission lines. While the late-time behaviour of the ground transient resistance has been understood quite well, the same cannot be said of early-time behaviour. In this paper, the authors investigate the early-time behaviour using a high-frequency expansion of the ground impedance in a Taylor series and derive a compact closed-form analytical expression for it. This expression can be used for the transient analysis of transmission lines in a computationally efficient way

Keywords

approximation theory; earthing; electric impedance; lightning protection; power overhead lines; power transmission protection; series (mathematics); transient analysis; transmission line theory; transmission network calculations; Taylor series; compact closed-form analytical expression; computational efficiency; early-time behaviour; ground transient resistance; high-frequency ground impedance expansion; overhead power transmission lines; transient analysis; transient response; Electric resistance; Frequency domain analysis; Impedance; Power system transients; Power transmission lines; Predictive models; Taylor series; Transient analysis; Transient response; Transmission lines;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-6569-0

Type

conf

DOI

10.1109/ISEMC.2001.950608

Filename

950608