A fractal model for the lightning induced current on a transmissionline

摘要

This article presents a model of a tortuous lightning channel, anda study of the consequent electromagnetic coupling to a transmissionline. We analyse the fractal dimension of the induced current on theline, compared with the fractal dimension of the lightning channel andthe impinging electromagnetic field on the line. This comparisonconfirms our previous studies pointing out that the channel fractaldimension and the electromagnetic field fractal dimension are related(in particular, for typical lightning parameters they are the same). Acomparison of simulated fields and line currents with experimentalmeasurements is also attempted