Modelling of the negative lightning discharge with an equivalent electrical network
Résumé
In the present work a simplified model of negative lightning discharge taking into account the different phases of the propagation (i.e., the initiation of the first corona, the negative and space leaders and the junction of leaders) is presented. This model uses LCR line electrical network parameters derived from electromagnetic field, physical laws and gas discharge theories. Assuming the discharge channel to a long conductor and taking into account criteria for instabilities and some atmospheric conditions, a mathematical model is derived that enables to determine the discharge main macroscopic parameters. The computed results are found to be in good agreement with data reported in the literature.
Domaines
Energie électrique
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