接地网故障诊断技术研究(英文)

The Research of the Grounding Grid Diagnosis

在理论分析与研究的基础上,采用灵敏度分析法建立了寻求地网腐蚀和断点的故障方程,从而对接地网的故障情况做出判断,并用仿真计算和电阻网络实际模拟试验结果,验证诊断的正确性、可行性及实用性。

According to the theory analysis and research, the fault equation to find out the abruption and corrosion of the grounding gr/d is built by sensibility analysis method. And the fault equation is solved by optimization theory and lowest ener- gy principle. The increased value of each branch resistance is calculated according to constraint condition, objection function and fault equation. The fuzzy method is used to deal with several group data in order to increase the accuracy. This method is verified by the simulation and analog experiment.