接地网腐蚀的诊断方法研究

A METHOD FOR CORROSION DIAGNOSIS OF GROUNDING GRID

为研究变电站接地网腐蚀的诊断方法 ,将接地网等效为纯电阻网络 ,运用电网络理论、模拟电路故障诊断理论及最优化技术建立接地网故障诊断方程组 ,用MATLAB求解方程组 ,分析接地网腐蚀前后的情况变化 ,判断出接地网腐蚀的情况。仿真计算表明 。

THIS PAPER PRESENTS THE METHOD, BY WHICH THE CORROSION OF THE GROUNDING GRID CAN BE DIAGNOSED. A GROUNDING GRID CAN BE HANDLED AS A CIRCUIT NETWORK. WITH APPLICATION OF CIRCUIT NETWORK GRAPH THEORY AND THE FAULT DIAGNOSIS THEORY OF ANALOG CIRCUIT AND OPTIMIZATION, THE FAULT DIAGNOSIS EQUATIONS CAN BE SET UP. THIS EQUATIONS ARE FIGURED OUT BY MATLAB, AND THE RESULT CAN DEDUCE THE CORROSION STATUS OF THE GROUNDING GRID.