变电站接地网腐蚀诊断研究进展及其应用  

Research Progress and Application of Grounding Network Corrosion Diagnosis in Substations

作　　者：韦瑞尧 王熙俊 吴华成 张胜寒[1] WEI Ruiyao;WANG Xijun;WU Huacheng;ZHANG Shenghan(College of Environmental Science and Engineering,North China Electric Power University,Baoding,Hebei 071003,China;Electric Power Research Institute of State Grid Jibei Electric Power Co.,Ltd.,(North China Electric Power Research Institute Co.,Ltd.),Beijing 100045,China)

机构地区：[1]华北电力大学环境科学与工程系,河北保定071003 [2]国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司),北京100045

出　　处：《东北电力技术》2024年第5期16-21,25,共7页Northeast Electric Power Technology

基　　金：国网冀北电力有限公司科技项目(52018K22001A)。

摘　　要：接地网是变电站的重要组成部分,是变电站稳定运行和人员安全的保证。由于接地网埋设于地下,因此检修难度较大,近年来接地网腐蚀诊断成为该领域的研究重点。首先,分析接地网腐蚀诊断研究现状,介绍了各类腐蚀诊断方法,包括工频大电流法、电化学分析法、电网络分析法、电磁场分析法、瞬变电磁法、电阻抗成像法、杂散电流腐蚀与监测及其他方法;其次,简要介绍腐蚀诊断技术在变电站的应用;最后,提出未来接地网腐蚀诊断领域的发展趋势。Grounding network is an important part of substation,which is the guarantee of stable operation and personnel safety.Because the grounding network is buried underground,it is difficult to repair it.In recent years,the corrosion diagnosis of grounding network has become the focus of research in this field.Firstly,it analyzes the research status of grounding grid corrosion diagnosis,and introduces various corrosion diagnosis methods including power frequency high current method,electrochemical analysis method,electric network analysis method,electromagnetic field analysis method,transient electromagnetic method,electrical impedance imaging method,stray current corrosion and monitoring and other methods.Then it briefly introduces the application of corrosion diagnosis technology in a substation.Finally,it proposes the future development trend in the field of grounding grid corrosion diagnosis.

关 键 词：接地网 检修 腐蚀诊断 应用 发展趋势 

分 类 号：TG178[金属学及工艺—金属表面处理]