Detail publikace
Evaluating the Ground Impedance-A New Methodology Based on EM Reciprocity
ŠTUMPF, M.
Originální název
Evaluating the Ground Impedance-A New Methodology Based on EM Reciprocity
Anglický název
Evaluating the Ground Impedance-A New Methodology Based on EM Reciprocity
Jazyk
en
Originální abstrakt
The electromagnetic reciprocity theorem of the time-convolution type is applied to introduce a general methodology for constructing approximate expressions for the ground impedance parameter. The methodology is first illustrated on expressing the ground impedance concerning a thin conductive strip above a homogeneous, lossy half-space, which yields the classic ground-impedance approximate expressions due to Carson and Vance. Second, the proposed methodology is applied to the corresponding strip-ground configuration in which the effect of the ground is modeled via the surface impedance approximation. This leads to a new ground-impedance approximate expression given in terms of the exponential integral. The validity of the latter approximation is assessed numerically and its relation to the well-known approximations is briefly discussed. Finally, the corresponding two-layer ground problem configuration is analyzed. The result is a correction of the ground impedance accounting for the contrast in soil stratification.
Anglický abstrakt
The electromagnetic reciprocity theorem of the time-convolution type is applied to introduce a general methodology for constructing approximate expressions for the ground impedance parameter. The methodology is first illustrated on expressing the ground impedance concerning a thin conductive strip above a homogeneous, lossy half-space, which yields the classic ground-impedance approximate expressions due to Carson and Vance. Second, the proposed methodology is applied to the corresponding strip-ground configuration in which the effect of the ground is modeled via the surface impedance approximation. This leads to a new ground-impedance approximate expression given in terms of the exponential integral. The validity of the latter approximation is assessed numerically and its relation to the well-known approximations is briefly discussed. Finally, the corresponding two-layer ground problem configuration is analyzed. The result is a correction of the ground impedance accounting for the contrast in soil stratification.
Dokumenty
BibTex
@article{BUT149733,
author="Martin {Štumpf}",
title="Evaluating the Ground Impedance-A New Methodology Based on EM Reciprocity",
annote="The electromagnetic reciprocity theorem of the time-convolution type is applied to introduce a general methodology for constructing approximate expressions for the ground impedance parameter. The methodology is first illustrated on expressing the ground impedance concerning a thin conductive strip above a homogeneous, lossy half-space, which yields the classic ground-impedance approximate expressions due to Carson and Vance. Second, the proposed methodology is applied to the corresponding strip-ground configuration in which the effect of the ground is modeled via the surface impedance approximation. This leads to a new ground-impedance approximate expression given in terms of the exponential integral. The validity of the latter approximation is assessed numerically and its relation to the well-known approximations is briefly discussed. Finally, the corresponding two-layer ground problem configuration is analyzed. The result is a correction of the ground impedance accounting for the contrast in soil stratification.",
address="IEEE EMC Society",
chapter="149733",
doi="10.1109/TEMC.2018.2833285",
howpublished="online",
institution="IEEE EMC Society",
number="3",
volume="61",
year="2019",
month="june",
pages="928--934",
publisher="IEEE EMC Society",
type="journal article in Web of Science"
}