基于矩量法的接地网接地电阻计算

An algorithm for grounding resistance based onthe Galerkin's moment method

矩量法是一种适用于任意结构接地网接地参数精确计算的方法,但是在应用矩量法计算接地网接地电阻及其他参数时,特别是在计算非均匀土壤接地参数时,由于需要使用格林公式进行互阻计算,往往计算量十分巨大,不便于使用计算机进行软件实现.基于此提出一种新的优化算法,将矩量法与MATLAB算法结合,从而节省了计算时间,并提高了计算精度,适用于多层土壤和不规则接地网参数的数值计算.

Galerkin＇s moment method is used to calculate accurately grounding parameter of grounding systems with any form in non-homogeneous soil. However, when applying such method to the calculation of grounding grids resistance or other parameters, especially in non-homogeneous soil, the process time is enormous and therefore, there is great difficult to calculate the parameter using computer, In this paper, we present a new approach which makes it practical to calculate the grounding grid resistance by synchronizing the two approaching between moment method and algorithm of MATL.AB. So making use of this approach greatly enhance the precision of calculation and speed in non-homogeneous soil.