垂直层状介质中接地网接地参数的计算

THE PARAMETER CALCULATION OF GROUNDING NETS IN VERTICAL MEDIUM DEMARCATION

本文将边界元方法用于垂直层状介质中矩形接地网接地参数的计算，详细介绍了此方法的原理及实现技术，讨论了影响接地网接地电阻的各种因素。通过采用等比加密节点划分、远场影响考虑、系数矩阵快速形成等计算技术，编制了精度高、速度快、存储省接地网参数计算软件。实例计算表明，利用此方法计算垂直层状介质中接地网参数可得到满意的结果。

It is introduced in this paper the applica-tion of the boundary element method to parameter cal-culation of rectangular grounding nets in vertical medi-um demarcation. By means of some computationaltechniques,such as double division,far field trunca-tion, high-speed formation of the coefficient matrix,etc,the programmed computation softvvare has theadvantages of high accuracy and speed,and occupiesless memory space. The calculation results for practi-cal example show that this method is effective and canbe utilized in practice.