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首页> 外文期刊>Science, Measurement & Technology, IET >Numerical simulation of a grounding grid buried in horizontal multilayered earth based on ‘T’ typical basic elements in the frequency domain
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Numerical simulation of a grounding grid buried in horizontal multilayered earth based on ‘T’ typical basic elements in the frequency domain

机译：基于频域中“ T”典型基本元素的水平多层地埋地网的数值模拟

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摘要

In this study, the authors propose a new mathematical model that allows the accurate computation of currents flowing through a substation's grounding grid buried in horizontal multilayered earth, which is a hybrid of Galerkin's method of moment and the conventional nodal analysis method based on ‘T’ typical basic elements. The dynamic state complex image method and the closed form of Green's function of a horizontal dipole or monopole in the earth model are introduced into this mathematical model to enhance its efficiency. In addition, an analytical formula for mutual induction and impedance coefficient calculations are used to accelerate the application of this method. Finally, some numerical results related to a practical grounding problem are discussed and some conclusions are given.
机译：在这项研究中，作者提出了一个新的数学模型，该模型可以准确计算流经水平多层土埋入的变电站接地网的电流，这是Galerkin矩方法与基于“ T”的常规节点分析方法的混合体典型的基本元素。在地球模型中引入了动态状态复合图像方法和水平偶极子或单极子的格林函数的封闭形式，以提高其效率。此外，用于互感和阻抗系数计算的解析公式可加快该方法的应用。最后，讨论了与实际接地问题有关的一些数值结果，并给出了一些结论。

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