Research on Fault Element Diagnosis in Power System Based on Hierarchical Model and Switch Temporal Logic
When a fault occurs in the power system it is difficult to precisely diagnose the fault elements owning to the missing and false alarm information.Aiming at this,an expert system diagnosis method based on knowledge network technology is proposed in this paper.In the process of establishing the knowledge network,this paper puts forward a hierarchical scheduling information classification model,an initialization of arcs in the knowledge network and a calculation method of knowledge node confidence factors,weights which are based on switching action sequence and protection action logic.At last take Shanghai power grid as an example to verify this method.
power systemfault diagnosisknowledge gridcredibilityhierarchical modeltemporal logic
NETL
NSTL
万方数据
维普
