Numerical Simulation of Substation Grounding Grids Buried in Vertical Earth Model Based on the Thin-Wire Approximation with Linear Basis Functions
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Numerical Simulation of Substation Grounding Grids Buried in Vertical Earth Model Based on the Thin-Wire Approximation with Linear Basis FunctionsAbstract
In order to improve the precision of the numerical result, the fast convergent Galerkin's type of boundary element method (BEM) with one order basis function is developed to calculate the grounding system buried in the vertical multilayer earth model. In this paper, the method is taken to simulate and analyze a grounding system including a floating electrode with any complicated structure, which can be located anywhere in the vertical multilayer earth model. The quasi-static complex image method (QSCIM) and the closed form of Green's function for the vertical multilayer earth model are introduced; the QSCIM is implemented by the matrix pencil (MP) approach.
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LI, LI, FAN, YIN: NUMERICAL SIMULATION OF SUBSTATION GROUNDING GRIDS BURIED IN VERTICAL EARTH MODEL
