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Journal article

A scale model for the study of the LEMP response of complex power distribution networks

This paper deals with scale models of power distribution systems for the study of lightning induced voltages on overhead lines. The scale model technique is useful for the investigation of situations which are prohibitively complex to be treated theoretically. For instance, urban distribution networks are usually characterized not only by complex topologies but also by the presence of nearby buildings, whose influence on the lightning induced effects can be successfully evaluated by means of reduced models. The paper first describes the scale model implemented for such a purpose at the University of Sao Paulo, Sao Paulo, Brazil. It then presents a comparison between the experimental data obtained with the scale model and the computer simulations obtained by using the LIOV-EMTP code, a software tool able of calculating lightning-induced electromagnetic transients in distribution systems having complex configurations. Finally, the paper shows an application of the scale model in the evaluation of lightning induced voltages on distribution networks considering the presence of nearby buildings. © 2007 IEEE.

    Keywords: Electromagnetic induction ; Lightning ; Lightning-induced voltages ; LIOV-Electromagnetic Transients Program (EMTP) code ; Power distribution lines ; Power system lightning effects ; Reduced-scale model ; Electric lines ; Electric potential ; Electric power distribution ; Mathematical models ; Electromagnetic transients program (EMTP) code ; Electric power systems

    Note:

    Institute of Electrotechnics and Energy, University of São Paulo, São Paulo 05508-010, Brazil Polytechnic School of the University of São Paulo, São Paulo 05508-010, Brazil Mauá Institute of Technology, São Paulo LO 09580-900, Brazil Faculty of Engineering, University of Bologna, Bologna 40136, Italy, Cited By (since 1996): 23, Export Date: 25 April 2012, Source: Scopus, CODEN: ITPDE, doi: 10.1109/TPWRD.2006.881410, Language of Original Document: English, Correspondence Address: Piantini, A.; Institute of Electrotechnics and Energy, University of São Paulo, São Paulo 05508-010, Brazil; email: piantini@iee.usp.br, References: Abetti, P.A., Transformer models for the determination of transient voltages (1953) AIEE Trans, 76, pp. 468-480. , Jun; Sinclair, G., Theory of models of electromagnetic systems (1948) Proc. 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