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为解决故障信息数据庞大、信息不确定性以及故障诊断算法的选择性等问题,本文依据IEC61970的公共信息模型(CIM)以及IEC61968的CIM扩展模型,搭建故障诊断信息统一模型,并在扩展故障信息模型的基础上,提出基于拓扑搜索的配电网故障诊断算法。该算法是在故障发生后,诊断程序调用以CIM为模型的配电网拓扑结构及故障信息数据,采用简单的深度优先搜索方法实现故障诊断。文中给出实现算法的流程图,并用某配电网局部联接图验证该算法的正确性,结果表明本文提出的故障诊断算法具有一定的可行性和准确性。
In order to solve the problems such as large data of fault information, uncertainty of information and selectivity of fault diagnosis algorithm, this paper constructs a unified model of fault diagnosis information based on IEC61970 CIM and IEC61968 CIM extension model, Based on the model, a fault diagnosis algorithm for distribution network based on topological search is proposed. After the fault occurs, the diagnostic program calls the distribution network topology and fault information data based on CIM model, and uses a simple depth-first search method to achieve fault diagnosis. The flow chart of the algorithm is given in this paper. The correctness of this algorithm is verified by a local connection map of a distribution network. The results show that the proposed fault diagnosis algorithm has some feasibility and accuracy.