Analysis of the toroidal HVDC grounding systems in horizontal multilayer soils

Author

Zou, J. ; Liu, Y.Q. ; Yuan, J.S. ; He, J.L. ; Cao, L. ; Lee, J. ; Chang, S.

Author_Institution

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

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

1435

Lastpage

1438

Abstract

A Fredholm integral equation of the first kind has been developed for analyzing the performance of the toroidal high-voltage direct current (HVDC) grounding system buried in the horizontal multilayer soil. The method of moment is used to solve the equations. The formulation of potential in the earth due to a circular current is proposed in closed form by means of conception of the complex resistivity and depth, which leads to the saving of the computational time greatly. The numerical results show the good agreements with those in other papers and the measured data

Keywords

Fredholm integral equations; Galerkin method; HVDC power transmission; earthing; electrodes; method of moments; Fredholm integral equation; Galerkin moment method; circular current; grounding electrodes; high-voltage direct current grounding system; horizontal multilayer soils; method of moment; toroidal HVDC grounding systems; Analytical models; Electrodes; Grounding; HVDC transmission; Integral equations; Moment methods; Nonhomogeneous media; Performance analysis; Power system simulation; Soil; Galerkin´s moment method; grounding electrodes; high-voltage direct current (HVDC); multilayer soil;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871456

Filename

1608486