Fast Calculation of the Green Function of a Point Current Source in a Horizontal Layered Soil With a New Complex Path and Its Application in Grounding System

Author

Jun Zou ; Xuelong Du ; Chenglong Zhou

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

51

Issue

3

fYear

2015

fDate

Mar-15

Firstpage

1

Lastpage

4

Abstract

It is very important to efficiently evaluate the Green function of a point current for analyzing a large grounding system. In this paper, a very efficient approach to calculate the Green function of a point current source in a horizontal layered soil with a new complex integration path is presented. As can be found, the highly oscillatory integrand has been changed to be a quickly damped one that can be evaluated using the built-in quadrature routine in MATLAB. The numerical examples show that it is practical to evaluate the parameters of a large ground system within a reasonable computational time with the proposed approach.

Keywords

Green´s function methods; constant current sources; earthing; soil; Green function; built-in quadrature routine; complex integration path; grounding system; horizontal layered soil; point current source; Conductors; Green´s function methods; Grounding; Integrated circuit modeling; Method of moments; Resistance; Soil; Complex integration path; Green function; grounding system; moment method;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2014.2350486

Filename

7093447