Parameteric Analysis of Grounding Systems in Two-Layer Earth using Galerkin´s Moment Method´,´Sharma

Author

Sharma, Chandrabhan ; De Four, Shawnton

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of the West Indies, St. Augustine

fYear

2006

fDate

21-24 May 2006

Firstpage

541

Lastpage

547

Abstract

This paper describes the theoretical basis of the developed computer program, GAUMOM (grounding analysis using method of moments). The software calculates the resistance and maximum step and touch potentials for any complex electrode in a two-layer earth structure using Galerkin´s moment method. Validation was performed using the point matching moment method which yields accurate results provided that electrode segmentation is fine. From the results obtained, GAUMOM produces errors of 0.4% and 6.1%, in grid resistance and voltage respectively, for grids with rectangular meshes. However, for grids with triangular meshes, the errors in resistance and voltage are 3% and 21% respectively

Keywords

Galerkin method; earth electrodes; method of moments; power engineering computing; GAUMOM; Galerkin´s moment method; complex electrode; computer program,; electrode segmentation; grid resistance; grid voltage; grounding systems; method of moments; parametric analysis; point matching moment method; rectangular meshes; triangular meshes; two-layer earth; Conductivity; Current density; Electric resistance; Electrodes; Equations; Grounding; Moment methods; Soil; Surface resistance; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Transmission and Distribution Conference and Exhibition, 2005/2006 IEEE PES

Conference_Location

Dallas, TX

Print_ISBN

0-7803-9194-2

Type

conf

DOI

10.1109/TDC.2006.1668554

Filename

1668554