In the solution of grounding parameters of a certain large-scale grounding grids by traditional boundary element method(BEM),the required memory space for this task far exceeds the memory space of the common computer,so that this problem cannot be solved.It is proposed to solve grounding parameters of grounding grid by fast multipole BEM,and quadtree memory structure is utilized to replace traditional storage schema based on coefficient matrix,thus the memory capacity for the calculation is reduced and the ...
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