电测与仪表2017，Vol.54Issue(2)：109-113,120,6.
非均匀土壤矩形接地网优化设计
Optimization design of rectangular grounding grid in non-uniform soil
李慧奇 1王璐 1陈明 2邢琳 2张大雨1
作者信息
- 1. 华北电力大学河北省输变电设备安全防御重点实验室,河北保定071003
- 2. 国网河北省电力公司经济技术研究院,石家庄050021
- 折叠
摘要
Abstract
When the soil environment around the grid is determined,the optimal design of grounding grid is equalized the potential,so as to reduce the touch voltage and step voltage,and as far as possible to save materials,reduce the cost of construction.In order to get the optimal layout scheme of rectangular grounding grid under the condition of non-uniform soil,based on the simulation models of square grounding grid built by CDEGS,firstly,the optimal design of grounding grid is obtained by changing each equalizing belts,and optimization function is obtained from fitting function.The change of the optimization function in different soil reflection coefficients,soil thickness and the area of the grounding grid is studied,and the effect of the rectangular grounding grid is analyzed.The research shows that the design of the grounding grid is related to the soil environment,but also with the rectangular shape.Compare with other methods,this proposed method can reduce maximum touch voltage about 12％.This method can be applied to uniform and non-uniform soil,which can optimize the rectangular and square grounding grids,and the optimization effect is in accordance with the basic standards of the power industry.关键词
接地网/优化设计/不等间距布置/非均匀土壤/接触电压Key words
grounding grid/optimization design/unequally spaced/non-uniform soil/touch voltage分类
信息技术与安全科学引用本文复制引用
李慧奇,王璐,陈明,邢琳,张大雨..非均匀土壤矩形接地网优化设计[J].电测与仪表,2017,54(2):109-113,120,6.
