Interaction between grounding systems and nearby lightning for the calculation of overvoltages in overhead distribution lines

The aim of the paper is to analyze overvoltages in overhead distribution lines induced by nearby lightning return stroke currents taking into account also the conductive coupling between the lightning current injected into the soil and the line's grounding system. Experimental results obtained in 2003 at the International Center for Lightning Research and Testing (ICLRT) in Florida have shown that significant currents were coupled with an overhead experimental line through its grounding system by nearby rocket-triggered lightning. The paper first proposes a conductive coupling model between the lightning current injected into the soil and the nearby line grounding system, then presents the incorporation of such a model into the LIOV-EMTP computer code. The paper finally presents an experimental validation of the proposed models by making reference to results obtained during the above-mentioned triggered-lightning campaign. © 2011 IEEE.

Published in:
2011 IEEE PES Trondheim PowerTech: The Power of Technology for a Sustainable Society, POWERTECH 2011, null, null, null
Department of Electrical Engineering, University of Bologna, Bologna, Italy Swiss Federal Institute of Technology of Lausanne, Switzerland University of Florida, Gainesville, FL, United States EnerNex Corporation, Knoxville, TN 37922, United States
Conference code: 86744
Export Date: 25 April 2012
Source: Scopus
Art. No.: 6019438
doi: 10.1109/PTC.2011.6019438
Language of Original Document: English
Correspondence Address: Napolitano, F.; Department of Electrical Engineering, University of Bologna, Bologna, Italy; email:
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Sponsors: IEEE; IEEE Power and Energy Society (PES)
Other identifiers:
Scopus: 2-s2.0-80053381766

 Record created 2012-05-01, last modified 2018-03-17

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