CDEGS在城市变电站接地网安全评估中的应用  

Application of CDEGS Software in Safety Evaluation of Grounding Grid in Urban Substation

作　　者：蒋益进 谭惠尹 梁雄 JIANG Yijin;TAN Huiyin;LIANG Xiong(Guangxi Electrical Polytechnic Institute,Nanning 530004,China;China Energy Engineering Group Guangxi Elctric Power Design Institute Co,Ltd,Nanning 530007,China)

机构地区：[1]广西电力职业技术学院,广西南宁530004 [2]中国能源建设集团广西电力设计研究院有限公司,广西南宁530007

出　　处：《电工技术》2023年第3期198-201,206,共5页Electric Engineering

基　　金：2021年度广西高校中青年教师基础能力提升项目(编号2021KY1319)。

摘　　要：城市变电站的接地网参数难以测量,使其安全性评估难以开展。为了解决这一问题,可基于土壤电阻率和接地网尺寸数据,通过CDEGS软件仿真计算出城市变电站接地网的接地电阻、跨步电势、接触电势、GPR和GPD等参数,进而开展变电站接地网安全性评估。案例应用分析表明,通过CDEGS软件可仿真计算出城市变电站完整的接地网参数,克服城市变电站接地网参数测试存在的困难,适用于城市变电站接地网安全性评估。The grounding grid parameters of urban substations are difficult to measure,making it difficult to carry out.safety assessments.In order to solve this problem,based on the soil resistivity and grounding grid size data,the grounding resistance,step potential,contact potential,GPR and GPD parameters of the urban substation grounding network are calculated by CDEGS software simulation,and then the safety evaluation of the substation grounding network is carried out.The case application analysis shows that the complete grounding grid parameters of urban substations can be simulated and calculated by CDEGS software,which overcomes the difficulties in testing the grounding grid parameters of urban substations.This method is applicable to the safety assessment of urban substation grounding grid.

关 键 词：城市变电站 仿真 接地网参数 安全评估 CDEGS软件 

分 类 号：TM862[电气工程—高电压与绝缘技术] TM63