Calculation of electromagnetic transients in transmission cables and lines taking frequency dependent effects accurately into account

Author

Gustavsen, B. ; Sletbak, J. ; Henriksen, T.

Author_Institution

Norwegian Inst. of Technol., Trondheim, Norway

Volume

10

Issue

2

fYear

1995

fDate

4/1/1995 12:00:00 AM

Firstpage

1076

Lastpage

1084

Abstract

This paper presents a travelling wave model for power transmission cables and lines in which the frequency dependence of the modal transformation matrix is accurately taken into account. This is achieved by carrying out convolutions in the actual phase domain. The computational efficiency is increased by fitting the tail portion of the step responses with linear segments. The paper also discusses two versions of the inverse Fourier transform which are highly efficient when calculating the step responses needed for long observation times

Keywords

Fourier transforms; curve fitting; digital simulation; inverse problems; power cables; power system analysis computing; power system transients; power transmission lines; step response; transient analysis; transmission line matrix methods; computational efficiency; computer simulation; convolutions; curve fitting; electromagnetic transients; frequency dependent effects; inverse Fourier transform; modal transformation matrix; observation time; phase domain; power transmission cables; power transmission lines; step responses; tail portion; travelling wave model; Circuits; Computational efficiency; Electromagnetic modeling; Electromagnetic transients; Fourier transforms; Frequency dependence; Frequency domain analysis; Power cables; Tail; Transmission line matrix methods;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.400879

Filename

400879