A boundary element formulation for the substation grounding design
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A boundary element formulation for the substation grounding designDate
1999Citation
Advances in engineering software, vol. 30, n. 9-11 (11 Sep. 1999), p. 603-700
Abstract
[Abstract] 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) can be identified as the result of specific choices for the test and trial functions and suitable assumptions introduced in the 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.
Keywords
Earthing computation
Boundary element method
Grounding grid design
Boundary element method
Grounding grid design
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ISSN
0965-9978