Calculation of overhead transmission line impedances a finite element approach

Author

Triantafyllidis, D.G. ; Papagiannis, G.K. ; Labridis, D.P.

Author_Institution

Dept. of Electr. & Comput. Eng., Aristotelian Univ. of Thessaloniki, Greece

Volume

14

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

287

Lastpage

293

Abstract

In this paper, the finite element method (FEM) is used to calculate the frequency dependent series impedance matrix of an overhead transmission line. A novel approach is proposed, leading from FEM results to the direct computation of the symmetrical components impedance matrix of any single or double circuit transmission line. Results show excellent agreement with those obtained by classical computation methods. Test cases examined include impedance calculations in the presence of certain terrain irregularities in the line neighborhood, such as a line by a mountain side of variable slope, a line inside a canyon or a line near a water region

Keywords

finite element analysis; impedance matrix; power overhead lines; transmission line matrix methods; FEM; canyon; double circuit transmission line; finite element approach; frequency dependent series impedance matrix; overhead transmission line; overhead transmission line impedances; single circuit transmission line; symmetrical components impedance matrix; terrain irregularities; variable slope mountain side; water region; Conductors; EMTP; Earth; Electromagnetic fields; Finite element methods; Frequency dependence; Impedance; Power transmission lines; Symmetric matrices; Transmission line matrix methods;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.736740

Filename

736740