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Sba: Controle & Automação Sociedade Brasileira de Automatica
Print version ISSN 0103-1759
ALIPIO, Rafael Silva; AFONSO, Márcio Matias; OLIVEIRA, Tarcísio Antônio Santos de and SCHROEDER, Marco Aurélio de Oliveira. Electrical grounding modeling for high frequency phenomena and comparison with experimental results. Sba Controle & Automação [online]. 2011, vol.22, n.1, pp. 89-102. ISSN 0103-1759. http://dx.doi.org/10.1590/S0103-17592011000100008.
This paper presents the physical and mathematical basis of a methodology for electromagnetic transients' calculation in grounding systems, subjected to high frequency phenomena, for example, those associated to lightning. The derived equations arise from the direct application of the electromagnetic basic equations in the frequency domain, whose solution is obtained by the application of the Moment Methods numerical technique. The obtained results by this method are compared both with experimental results and with another model, which is assumed as a reference in the specialized literature. Based on such comparisons, the consistency of the proposed model is verified.
Keywords : Grounding; electromagnetic transients; lightning; electromagnetic modeling; comparison with measurements.