Title :
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
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;
Conference_Titel :
Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6569-0
DOI :
10.1109/ISEMC.2001.950608
