电网技术2016，Vol.40Issue(6)：1921-1925,5.DOI:10.13335/j.1000-3673.pst.2016.06.045
引外接地网参数优选研究
Research of Optimal Parameters of the External Grounding Grid
摘要
Abstract
External grounding grid is an effective measure to reduce grounding resistance of grounding grid.In order to meet the requirements of the grounding resistance in the most economical way, it is particularly critical to determine the parameters of the external grounding grid, such as the area, the distance of the external grounding grid, the sectional area of the external connection line.Generally speaking, when the area is larger, the distance is longer, and the sectional area of the connecting line is larger, the grounding resistance is smaller.So there is one of the most economical design schemes to make the grounding resistance meet the requirements, and the scheme is the least amount of material and the construction of the project.In this paper, the grounding resistance function is established, which is based on the area, the distance of the external grounding grid, the sectional area of the external connection line, based on the unequal potential model of the grounding grid.Establish the objective function of the cost of construction using the optimization method.Then the optimal parameters of the area, the distance, the sectional area are obtained by programming and genetic algorithm optimization under certain constraint conditions.Provide an important basis for the design of the grounding grid economically.关键词
接地电阻/引外接地网/最优化/引外距离/引外面积/遗传算法Key words
grounding resistance/external grounding grid/optimization/distance of external grounding grid/area of external grounding grid/genetic algorithm分类
信息技术与安全科学引用本文复制引用
潘文霞,柴守江,周建文..引外接地网参数优选研究[J].电网技术,2016,40(6):1921-1925,5.基金项目
国家自然科学基金项目(51377047)。 Project Supported by National Natural Science Foundation of China (51377047) （51377047）
