大中型接地网腐蚀优化诊断实用化分析  

Practicality analysis for optimized erosion diagnosis of large and grid medium-scale grounding grid

作　　者：刘渝根[1] 吴立香[1] 王硕[2] 

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400030 [2]北京电力公司,北京100031

出　　处：《重庆大学学报（自然科学版）》2008年第4期417-420,共4页Journal of Chongqing University

基　　金：国家自然科学基金资助项目(59677016)

摘　　要：为实现大中型变电站接地网腐蚀优化诊断方法实用化,用拟牛顿法求解故障方程,ATPDraw软件对接地网的各种腐蚀情况进行真实模拟,C++与MATLAB结合编写了接地网腐蚀诊断应用程序。求解方程速度提高,总结出大中型变电站最优化的诊断方案,解决了地网诊断问题。在220、500 kV变电站分别进行了现场试验,用腐蚀诊断软件对接地网进行了诊断;对诊断为严重腐蚀的接地网导体进行了开挖,开挖结果与诊断结果几乎吻合,表明该诊断方法具有工程实用性。To implement the practicality for optimized corrosion diagnosis methods of large and mediumscale grounding grids, a failure equation was solved with the quasi-Newton method, various corrosion situations were simulated using ATP-Draw software, and a corrosion diagnosis application procedure was compiled with C＋＋ and MATLAB. This method increased equation solution speed and generated optimized schemes for grounding grid diagnosis problems. Field tests were carried out at 220 kV and 500 kV electrical substations using the corrosion diagnosis software. The conductors diagnosed as severely corroded were excavated. The results were identical to the diagnosis results, indicating that this diagnosis method has engineering practicality.

关 键 词：接地网 腐蚀 优化诊断 模拟 

分 类 号：TM862[电气工程—高电压与绝缘技术]