Naslov
Antenna model of the horizontal grounding electrode for transient impedance calculation: Analytical versus Boundary Element Method

Autori
Šesnić, Silvestar ; Poljak, Dragan

Izvornik
Engineering analysis with boundary elements (0955-7997) 37 (2013), 6; 909-913

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Horizontal grounding electrode; Transient impedance; Antenna model; Boundary element solution; Analytical solution; Inverse Fourier transform

Sažetak
The paper deals with a simple and efficient procedure for the calculation of the transient impedance of the horizontal grounding electrode. This work represents an extension of a previous paper, published by the authors, on the antenna modeling of the grounding electrode with corresponding Pocklington integro-differential equation. The governing equation is solved in the frequency domain, both numerically and analytically, thus obtaining the solution for the current induced along the electrode. The numerical solution is undertaken via Galerkin-Bubnov scheme of the Indirect Boundary Element Method. Scattered voltage along the electrode is then calculated using Generalized Telegrapher’s equation. Time domain scattered voltage is evaluated via the Inverse Fast Fourier Transform. Subsequently, transient impedance is determined as a ratio of time domain voltage and current at the feeding point. Results obtained via different methods seem to agree satisfactorily.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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