New method of determining the mean curve of lightning impulses according to IEC 60060-1

authored by

Arne P. Brede, Peter Werle, Ernst Gockenbach, H. Borsi

Abstract

In this contribution a new method for the determination of mean curves of lightning impulses is presented. The method is in accordance with the actual standard IEC 60060-1 and based on mathematical curve fitting using the Least Mean Square (LMS) error as quality criterion and the Gauss-Newton or the Levenberg-Marquardt algorithms in order to solve the nonlinear equations. The presented procedure reproduces measured lightning impulses in a more suitable way than conventional functions and is therefore able to determine mean curves of standard lightning impulses as well as of lightning impulses superimposed by oscillations or overshoots. A comparison of results obtained with the described method and other curve fittings by using the IEC-TDG and measured data produced by a special generating circuit shows that the new method is more favourable.

Organisation(s)

High Voltage Engineering and Asset Management Section (Schering Institute)

External Organisation(s)

SINTEF Energy Research AS

Type

Conference contribution

Pages

1.74.S29-1.77.S21

Publication date

1999

Publication status

Published

Peer reviewed

Yes

ASJC Scopus subject areas

Electrical and Electronic Engineering