电网技术2013，Vol.37Issue(3)：753-758,6.
应用快速多极子边界元法的接地网接地参数计算方法
Numerical Calculation of Grounding Parameters of Grounding Grid by Fast Multipole Boundary Method
摘要
Abstract
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 computational efficiency is improved.Taking the solution of grounding parameters of grounding grid with relatively small scale by traditional BEM and fast multipole BEM respectively as example,the computational results comparison shows that the maximum error of grounding resistance calculated by fast multipole BEM and that by CDEGS software are less than 2％,so it shows that the proposed method is effective.Applying the proposed method to engineering case,which cannot be solved by both CDEGS software and traditional BEM,the obtained related grounding parameters can preliminarily meet the engineering requirement.关键词
传统边界元法/快速多极子边界元法/接地参数/地网/存储量Key words
traditional boundary element method/ fast multi-pole boundary element method/ grounding parameter/grounding grid/ memory分类
信息技术与安全科学引用本文复制引用
郭卫,文习山,谭进,蓝磊,李晓萍,唐程..应用快速多极子边界元法的接地网接地参数计算方法[J].电网技术,2013,37(3):753-758,6.基金项目
国家重点基础研究发展计划项目(973项目)(2009CB724500). （973项目）
The National Basic Research Program of China (973 Program)(2009CB724500). （973 Program）
