输电线路杆塔接地装置腐蚀程度诊断研究  

Research ondiagnosis of corrosion degree of grounding device of transmission line tower

作　　者：姚茂顺 詹乐贵 杨清河 覃杨 孙绍珩 刘子轩 鲁彩江 YAO Maoshun;ZHAN Legui;YANG Qinghe;QIN Yang;SUN Shaoheng;LIU Zixuan;LU Caijiang(Tongren power supply bureau,Guizhou power grid co.,LTD.Tongren 554300,China;Department of mechanical and electrical measurement and control,School of mechanical engineering,Southwest Jiaotong University,Chengdu 610031,China)

机构地区：[1]贵州电网有限责任公司铜仁供电局,铜仁554300 [2]西南交通大学机械工程学院机电测控系,成都610031

出　　处：《自动化与仪器仪表》2020年第10期133-136,共4页Automation & Instrumentation

基　　金：国家自然科学基金(No.61801402);中国南方电网有限责任公司科技项目(No.GZKJXM20180344)。

摘　　要：用磁感应方法研究了输电线路杆塔接地装置导体的内部损伤情况。通过改变接地网模型某段的截面积大小模拟接地导体的损伤情况,分析了伤病长直导体内部的磁场响应特征,形成了导体段上磁场模的分布曲线与云图。计算得到的磁场模曲线能清晰显示出接地导体在不同模拟腐蚀程度下的磁场模大小差异。仿真结果表明,该方法能准确判断出导体内部产生腐蚀故障的位置。In this paper,the internal damage of the conductor of the grounding device of the transmission line tower is studied by using magnetic induction method.By changing the cross-sectional area of a certain section of the grounding grid model to simulate the damage of the grounding conductor,the magnetic response characteristics of the damaged long straight conductor are analyzed,and the distribution curve and cloud diagram of the magnetic field mode on the conductor section are formed.The curve of the calculated magnetic field mode clearly shows the difference of the ground conductor at different simulated corrosion levels.The simulation results show that the method can accurately determine the location of corrosion faults inside the conductor.

关 键 词：输电线路 接地 磁场响应 腐蚀判断 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]