基于仿真技术的在线接地装置阻抗值确定  

Determination of grounding impedance of on-line grounding device based on simulation technology

作　　者：何驰 曹晓斌[2] 付龙海[1] HE Chi;CAO Xiaobin;FU Longhai(Department of Intelligent Control,Yantai Vocational College,Yantai 264670,Shandong China;School of Electrical Engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]烟台职业学院智能控制系,山东烟台264670 [2]西南交通大学电气工程学院,四川成都610031

出　　处：《粘接》2024年第4期157-160,164,共5页Adhesion

基　　金：国家自然科学基金项目(项目编号:51777175);山东省青创人才引育计划团队项目(项目编号:鲁教人字[2019]号-23);烟台职业学院科研项目(项目编号:2022XBZD001)。

摘　　要：为了获得运行中变电站接地装置准确接地阻抗值,提出一种基于现场测量数据与CDEGS软件计算模拟结果对比验证,确定接地阻抗值的方法。通过现场测量获得所在地区视在土壤电阻率曲线和运行中接地装置视在接地阻抗值测量曲线。使用CDEGS软件建立包含接地系统及周边构筑物等系统在内的计算模拟模型,基于CDEGS仿真模型,重现现场接地阻抗值测量过程,并计算得到接地阻抗值仿真计算曲线。在仿真计算曲线与现场测量曲线对比吻合后,最终确定接地装置在线接地阻抗实际值。通过实际应用验证了此方法有效性。In order to obtain the grounding impedance value of on-line grounding device in substation,a method to finally determine the grounding impedance value based on the comparison and verification of field measurement data and computer simulation results was proposes.Through on-site measurements,the apparent soil resistivity curve of the area and the measurement curve of the apparent grounding impedance value of the grounding device in operation were obtained.The CDEGS software was used to establish a calculation simulation model including the grounding system and surrounding structures,and based on the CDEGS simulation model,the measurement process of the grounding impedance value was reproduced,and the simulation calculation curve of the grounding impedance value was calculated.After the simulation calculation curve was consistent with the field measurement curve,the actual value of the online grounding impedance of the grounding device was finally determined.The effectiveness of this method was verified by practical application.

关 键 词：接地阻抗 计算模拟 CDEGS软件 变电站 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术] TM631[自动化与计算机技术—计算机科学与技术]