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Evaluation of lightning return stroke current using measured electromagnetic fields
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
2012 (English)In: Progress In Electromagnetics Research (PIER), ISSN 1559-8985, Vol. 130, 581-600 p.Article in journal (Refereed) Published
Abstract [en]

The lightning return stroke current is an important parameter for considering the effect of lightning on power lines. In this study, a numerical method is proposed to evaluate the return stroke current based on measured electromagnetic fields at an observation point in the time domain. The proposed method considers all field components and the full wave shape of the current without the use of a special current model as a basic assumption compared to previous methods. Furthermore, the proposed algorithm is validated using measured fields obtained from a triggered lightning experiment. The results show a good agreement between the simulated field based on the evaluated currents from the proposed method and the corresponding measured field at a remote observation point. The proposed method can determine current wave shapes related to a greater number of lightning occurrences compared to the direct measurement of the current.

Place, publisher, year, edition, pages
2012. Vol. 130, 581-600 p.
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Science of Electricity
Identifiers
URN: urn:nbn:se:uu:diva-183251DOI: 10.2528/PIER12060712ISI: 000308582900029OAI: oai:DiVA.org:uu-183251DiVA: diva2:562395
Available from: 2012-10-24 Created: 2012-10-23 Last updated: 2013-03-04Bibliographically approved

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Cooray, Vernon

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