Title :
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
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;
Conference_Titel :
Transmission and Distribution Conference and Exhibition, 2005/2006 IEEE PES
Conference_Location :
Dallas, TX
Print_ISBN :
0-7803-9194-2
DOI :
10.1109/TDC.2006.1668554
