Title :
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
fDate :
4/1/1995 12:00:00 AM
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;
Journal_Title :
Power Delivery, IEEE Transactions on
