Application of meshless methods to the analysis and design of grounding systems
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Application of meshless methods to the analysis and design of grounding systemsData
1998Cita bibliográfica
Computational mechanics: new trends and applications (CD-ROM)
Resumo
[Abstract] Analysis and design of grounding systems of electrical installations involves computing
the potential distribution in the earth and the equivalent resistance of the system.
Several numerical formulations based on the Boundary Element Method have recently
been derived for grounding grids embedded in uniform soils and in stratified soils,
which feasibility has been demonstrated with its application to large earthing systems in
a two-layer soil.
In cases of the analysis of grounding systems buried in more stratified soils or heterogeneous,
the application of Boundary Element approaches can require a considerable
computational effort. On the other hand, the specific geometry of earthing systems in
practice (a grid of interconnected buried conductors) precludes the use of standard numerical
techniques (such as finite elements or finite differences), since discretization
of the domain (the earth) is required and the obtention of suffciently accurate results
should imply unacceptable computing efforts.
For these reasons, we have turned our attention to investigate the applicability of numerical
formulations based on meshless methods for the grounding analysis. In this paper,
a meshless technique based on the Moving Least Square method with a point collocation
approach is proposed.
Palabras chave
Meshless methods
MLS interpolants
Electromagnetics
Grounding
MLS interpolants
Electromagnetics
Grounding
Descrición
4th World Congress on Computational Mechanics, 1998, Buenos Aires
ISBN
84-89925-15-1