山东电力技术2025，Vol.52Issue(1)：72-80,9.DOI:10.20097/j.cnki.issn1007-9904.2025.01.008
邻近变电站终端塔级联接地降阻策略研究
Research on Resistance Reduction Strategy of Terminal Tower-level Connection Ground in Adjacent Substation
摘要
Abstract
In the terminal tower grounding grid near the substation,the grounding area of the terminal tower grounding grid is limited,the grounding resistance is high,and the metal grounding material is easy to corrode,so the terminal tower cannot be effectively grounded.In order to solve the above problems,the application of flexible graphite grounding material in terminal tower grounding grids is studied by using finite element software,and the strategy of cascade grounding resistance reduction under a limited area is proposed,and the grounding characteristics are compared with other grounding resistance reduction types.The simulation results show that the flexible graphite grounding grid can reduce the grounding resistance slightly under the traditional grounding structure.Under the same conditions,with the increase of soil resistivity,the resistance reduction efficiency and shunt coefficient of the cascade grid increase gradually,while the other resistance reduction types of the grid basically do not change.With the increase of the length of the grounding pole,the resistance reduction efficiency and shunt coefficient of the three types of grounding grids are gradually increased,and the resistance reduction efficiency of the cascade grounding grid is always higher than that of other grounding grids.It can be seen that the cascade grounding grid can effectively reduce the grounding resistance and improve the scattering efficiency of the grounding grid.关键词
柔性石墨/级联接地/接地降阻/有限元Key words
flexible graphite/level connection ground/grounding resistance reduction/finite element分类
信息技术与安全科学引用本文复制引用
毛惠卿,高涛,张建伟,张凯,穆明亮,田海鹏..邻近变电站终端塔级联接地降阻策略研究[J].山东电力技术,2025,52(1):72-80,9.基金项目
国家自然科学基金项目(52304068) （52304068）
国网山东省电力公司科技项目(520615220001).National Natural Science Foundation of China(52304068) （520615220001）
Science and Technology Project of State Grid Shandong Electric Power Company(520615220001). （520615220001）
