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International comparison of software for calculation of lightning impulse parameters based on a new processing algorithm
Helsinki University of Technology (TKK), Finland.
RISE - Research Institutes of Sweden, Safety and Transport, Measurement Science and Technology.ORCID iD: 0000-0002-5121-8152
Beijing Hua Tian Mechanical-Electrical Institute (BHT), China.
Electrotechnical Official Central Laboratory (LCOE), Spain.
Show others and affiliations
2007 (English)Conference paper, Published paper (Refereed)
Abstract [en]

A new algorithm has been proposed to calculate the parameters of full lightning voltage impulses. The new algorithm enables the application of the test voltage factor (also referred to as k-factor in some literatures) for calculation of the equivalent test voltage of impulses with superimposed oscillations/overshoots. The new algorithm at the same time provides a robust procedure for obtaining time parameters of the impulses from not only smooth waveforms but also waveforms with varying degrees of distortions in the front part of the impulses. These distortions include oscillations on the impulse front and overshoots in the peak region. A critical part of the new algorithm is a 4-parameter fitting procedure to obtain the base curve, which is used for calculation of the test voltage curve. Another important part of the algorithm is applying a filtering procedure in the calculation of the test voltage curve.

 

The new algorithm was tested in different laboratories using different programming languages and different techniques for realising the fitting and filtering routines. The paper reports the results obtained from the participating laboratories using the proposed algorithm. The results obtained by the participating laboratories using existing software based on the requirement of IEC 60060-1: 1989 were also compared. It is anticipated that the results can serve as a part of the basis for a new procedure for determination of lightning impulse parameters in the revised IEC 60060-1.

Place, publisher, year, edition, pages
2007.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-33396OAI: oai:DiVA.org:ri-33396DiVA, id: diva2:1188736
Conference
XVth International Symposium of High Voltage Engineering. Ljubljana, Slovenia. August 27-31, 2007 2007
Funder
European Metrology Programme for Innovation and Research (EMPIR)Available from: 2018-03-08 Created: 2018-03-08 Last updated: 2018-08-13

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CiteExportLink to record
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