Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2014.2350486
