Modeling the Frequency Dependence of Electrical Parameters of Soil

Author

Alipio, Rafael ; Visacro, Silverio

Author_Institution

Dept. of Electr. Eng., Fed. Center of Technol. Educ. of Minas Gerais, Belo Horizonte, Brazil

Volume

56

Issue

5

fYear

2014

fDate

Oct. 2014

Firstpage

1163

Lastpage

1171

Abstract

An original semitheoretical causal model was developed to describe the frequency dependence of electrical parameters of soil in the representative frequency range of lightning currents. The expressions of such model, based simply on the measured low-frequency soil resistivity, can be promptly applied to general soils in practical problems. The model allows the user to adopt different levels of conservativeness to take the dispersion of the frequency dependence of soil and eventual uncertainties into account. The comparison of experimental results and those provided by this model denoted its consistency.

Keywords

earth electrodes; electric current measurement; electrical resistivity; lightning protection; permittivity; frequency dependence dispersion; frequency dependence modeling; grounding electrodes; lightning currents; lightning response; representative frequency range; semitheoretical causal model; soil electrical parameters; soil permittivity; soil resistivity; Conductivity; Frequency dependence; Frequency measurement; Permittivity; Permittivity measurement; Soil; Soil measurements; Frequency dependence of soil resistivity and permittivity; lightning response of grounding electrodes; modeling the behavior of electrical parameters of soil;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/TEMC.2014.2313977

Filename

6813640