Original scientific paper
https://doi.org/10.7305/automatika.53-1.139
Comparison of Image and Transmission Line Models of Energized Horizontal Wire Above Two-Layer Soil
Vesna Arnautovski-Toseva
; Institute Pascal, Blaise Pascal University, Avenue des Landais 24, 63177 Aubiere, France
Khalil El Khamlichi Drissi
; Vesna.ARNAUTOVSKI@lasmea.univ-bpclermont.fr
Kamal Kerroum
; Vesna.ARNAUTOVSKI@lasmea.univ-bpclermont.fr
Solza Grceva
; Faculty of Information and Communication Technologies, FON University, Vojvodina bb, 1000 Skopje, Republic of Macedonia
Leonid Grcev
; Faculty of Electrical Engineering and Information Technologies, Ss. Cyril and Methodius University, Rugjer Boshkovik bb, 1000 Skopje, Republic of Macedonia
Abstract
The paper presents comparison between two approximate models of energized horizontal thin-wire conductors above two-layer soil. The formulation is posed in frequency domain by using two approaches. The first one is based on quasi-static image theory within Mixed Potential Integral Equation. The second one is based on transmission line theory with approximation of per unit length parameters. The authors compare currents computed by the both approximate models of a center fed wire to establish the computation errors over a wide frequency range. The main objective is to validate the proposed image and transmission line models for various lengths of wire conductors, and various cases of low and high conductivities of two-layer soil. The verification of the results is done by comparison with exact model based on full-wave theory. Detailed parametric analysis clearly illustrate validity domain and problems when using both approximate models with respect to their use in practical EMC studies.
Keywords
Full-wave theory; transmission line theory; quasi-static image approximation; two-layer soil
Hrčak ID:
81298
URI
Publication date:
18.4.2012.
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