Research on Fault Diagnosis for Distribution Network Using Extended CIM

To deal with abundance and uncertainty of fault information data,and the choice of diagnostic algorithms,a unified information model for fault diagnosis according to IEC61970 common information model(CIM) and IEC61968 extended CIM is built in this paper.Therefore,a fault diagnosis method for distribution network is put forward based on topology search.If fault occurs,fault detection program calls for distribution network topology and fault information of the CIM,and the fault can be diagnosed by simple depth-first search method.In this paper,flow chart of algorithm is given,and the correctness of the algorithm is verified by using of a local connection diagram for distribution network.Calculation results show that this algorithm is feasible and accurate.