| 边界元法在接地网数值计算中的应用 |
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| 引用本文： | 孟奇,鲁志伟.边界元法在接地网数值计算中的应用[J].东北电力学院学报,1998,18(1):28-37. |
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| 作者姓名： | 孟奇 鲁志伟 |
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| 作者单位： | Meng Qi (Postgraduate Department，Northeast China Institute of Electric Power Engineering，Jilin City 132012) Lu Zhiwei (Department of Electric Power Engineering，Northeast China Institute of Electric Power Engineering，Jilin City 132012) |
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| 摘 要： | 从恒定电流场的理论出发，运用边界元法（ＢＥＭ）将大型接地网电磁场计算的控制微分方程变换为边界上的积分方程，然后把积分方程离散对以导体流散电流为变量的线性方程组，从而求解出电流场出发，详细介绍了该方法的原理及处理技术，并编程计算了复杂接地网的接地电阻，接触电势和跨步电势，经大量实例计算表明，该方法计算精度高，适合于接地研究及工程实际的应用。
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| 关 键 词： | 边界元 接地网 接地电阻 接触电势 跨步电势 |
Application of Boundary Element Method in Numerical Calculation of Grounding Grids |
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| Meng,Qi.Application of Boundary Element Method in Numerical Calculation of Grounding Grids[J].Journal of Northeast China Institute of Electric Power Engineering,1998,18(1):28-37. |
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| Authors: | Meng Qi |
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| Abstract: | Based on the theory of constant current field,Boundary Element Method(BEM) is applied to convert the field controlling differential equation for the calculation of the large grounding grids into integral equation on the boundary,then to separate the integral equation into a linear equation set,in which conductor leakage currents are taken as variables and then it obtains the current field distribrtion by further calculation. The article introduces BEM and its process technique,and furthermore a program is developed to calculate grounding resistance,touch voltage and step voltage. The result of computational examples indicates that the method has high accuracy and is suitable to be used in the practical engineering and ground research. |
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| Keywords: | Boundary Element Method grounding grid grounding resistance touch voltage step voltage |
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