接地网故障诊断平台的功能与构建研究  

Research on the Construction and Function of Grounding Grid Fault Diagnosis Platform

作　　者：刘渝根[1] 肖磊石[1] 李谦[2] 冷迪[1] 柴艳丽[1] 张竞[1] 

机构地区：[1]重庆大学输配电装备及系统安全与新技术国家重点实验室.重庆400044 [2]广东电网公司电力科学研究院,广州510080

出　　处：《高压电器》2011年第9期78-83,共6页High Voltage Apparatus

基　　金：国家自然科学基金资助项目(59677016)~~

摘　　要：为解决工程上变电站接地网故障诊断中建模耗时长、现场工作量大等实际问题,基于特勒根定理及最小二乘法编写可视化接地网故障诊断软件,实现接地网拓扑结构自动生成,并通过串行通讯接口RS-232将现场测量接地引下线端口电阻值自动传输至诊断软件,在输出界面中依据各支路导体电阻增量判断接地网状态。该诊断平台大大提高了接地网故障诊断效率,具有较好工程实用性。To solve some practical problems existing in fault diagnosis of substation grounding grid, such as time-consuming modeling, heavy workload in field test, etc, basing on Tellegen theorem and least square method, a visual fault diagnosis of grounding grid platform is developed. The automatic generation of grounding grid network topology is realized, the measured port resistance between two grounding down lines is transfered automatically to diagnosis software by RS-232 serial communication interface, and the condition of grounding grid is determined by the incremental resistance of each branch conductor in output interface. The diagnosis platform greatly improve the efficiency of the grounding grid fault diagnosis, and has good engineering practicability

关 键 词：接地网 故障诊断 软件 腐蚀 

分 类 号：TM862[电气工程—高电压与绝缘技术]