接地网腐蚀和断点的诊断理论分析  

Analysis of Theory and Method about the Corrosion as well as the Broken Point of the Grounding Grid

作　　者：肖新华[1] 刘华[2] 陈先禄[1] 张晓玲[3] 

机构地区：[1]重庆大学电气工程学院,重庆400044 [2]重庆医科大学基建处,重庆400046 [3]福州大学电气工程系,福州350002

出　　处：《重庆大学学报（自然科学版）》2001年第3期72-75,共4页Journal of Chongqing University

基　　金：国家自然科学基金资助项目! (5 96 770 16 )

摘　　要：对发、变电站接地网腐蚀和断点的诊断理论进行了研究。通过严谨的理论分析 ,采用灵敏度分析法建立了故障诊断方程 ,并将能量最低原理及优化技术引入地网的故障诊断方程的求解中 ,讨论了目标函数为线性和非线性两种情况下 ,故障诊断方程结合一定的约束条件及目标函数的求解问题。仿真计算和模拟试验结果验证了该诊断理论与方法的正确性、可行性及实用性。The paper studies the theory about the corrosion as well as the broken point of the grounding grid in power plants and substations. By using sensitivity analysis, failure diagnosis equation is put up through rigorous theoretical analysis. Meanwhile the problem of morbid equation is solved by introducing lowest energy theory and technique of optimiation to diagnosis equation solution of grounding grid combined with definite constraint condition and linear or non-linear objective function, the fault diagnosis equation is discussed. The results of emulation calculation and analogous experiments verify the correctness,feasibility and practicality of the theory and method.

关 键 词：发电站 变电站 接地网 地网腐蚀 故障诊断 断点 

分 类 号：TM862[电气工程—高电压与绝缘技术]