A boundary element formulation for the substation grounding design

被引：11

作者：

Colominas, I ^{[1
]}

Navarrina, F ^{[1
]}

Casteleiro, M ^{[1
]}

机构：

[1] Univ A Coruna, Dpto Metodos Matemat & Representac, ETS Ingenieros Caminos Canales & Puertos, La Coruna 15192, Spain

来源：

ADVANCES IN ENGINEERING SOFTWARE | 1999年 / 30卷 / 9-11期

关键词：

earthing computation; boundary element methods; grounding grid design;

D O I：

10.1016/S0965-9978(98)00096-9

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A Boundary Element approach for the numerical computation of substation grounding systems is presented. In this general formulation, several widespread intuitive methods (such as Average Potential Method (APM)) can be identified as the result of specific choices for the test and trial functions and suitable assumptions introduced in the Boundary Element Method (BEM) formulation to reduce computational cost. While linear and parabolic leakage current elements allow to increase accuracy, computing time is drastically reduced by means of new completely analytical integration techniques and semi-iterative methods for solving linear equations systems. This BEM formulation has been implemented in a specific Computer Aided Design system for grounding analysis developed in the last years. The feasibility of this new approach is demonstrated with its application to a real problem. (C) 1999 Elsevier Science Ltd and Civil-Comp Ltd. All rights reserved.

引用

页码：693 / 700

页数：8

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[12]

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[13]

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[14]

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