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Evaluation of lightning current and velocity profiles along lightning channel using measured magnetic flux density
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Electricity.
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2012 (English)In: Progress In Electromagnetics Research (PIER), ISSN 1559-8985, Vol. 130, 473-492 p.Article in journal (Refereed) Published
Abstract [en]

In this paper, an inverse procedure algorithm is proposed in the time domain to evaluate lightning return stroke currents along a lightning channel using measured magnetic flux density at an observation point while the current velocity along a lightning channel is assumed to be a height dependent variable. The proposed method considers all field components and it can evaluate the full shape of currents and the current velocity at different heights along a lightning channel. Moreover, a sample of measured magnetic flux density from a triggered lightning experiment is applied to the proposed algorithm and the evaluated currents and current velocities are validated using a measured channel base current and magnetic flux density at another observation point.

Place, publisher, year, edition, pages
2012. Vol. 130, 473-492 p.
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Science of Electricity
Identifiers
URN: urn:nbn:se:uu:diva-183250DOI: 10.2528/PIER12060612ISI: 000308582900023OAI: oai:DiVA.org:uu-183250DiVA: diva2:562396
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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