高电压技术2012，Vol.38Issue(10)：2721-2727,7.
均匀土壤中矩形接地网的优化方法
Optimization Method to Rectangular Grounding Grid in Uniform Soil
摘要
Abstract
With the premise of ensuring the safety of equipment and people,the unequally spacing of grounding grid can economize metal material.We established an optimization formula for designing grounding grid in uniform soil and find out an optimization method to design rectangular grounding grid.Based on the simulation models of square grounding grid built by CDEGS,optimal location of each conductor was gained.The relationship between the number and the location of each conductor was analyzed by variable substitution method.Moreover,the optimizing effect of the unequally spacing on rectangular grounding grids was also investigated.It is concluded that there is a functional relationship between the number and the space not relating to the quantity of the conductor.It is also concluded that the touch voltage and step-voltage is affected by the divided quantity of the adjacent side of rectangle.Finally,a new optimization formula is derived,and a new optimization method for rectangular ground grid in uniform soil is presented.The optimization method works when the quantity of parallel conductors is more than 20,and the touch-voltage and step-voltage of grounding grid optimized by this method both fulfill the requirements of STD DL/T 621-1997.关键词
接地网/不等间距布置/接地导体/均匀土壤/优化方法/变电站Key words
grounding grid/unequally spaced/grid conductor/uniform soil/optimization method/substation分类
信息技术与安全科学引用本文复制引用
曹晓斌,胡劲松,吴广宁,黄晓明,李瑞芳..均匀土壤中矩形接地网的优化方法[J].高电压技术,2012,38(10):2721-2727,7.基金项目
铁道部重大专项课题 （）
教育部中央高校基本科研业务费专项资金 （）
