利用Apriori算法实现变电站二次系统故障诊断

Realization of Fault Diagnosis of Substation Secondary System Using Apriori Algorithm

在智能变电站中,二次回路的故障原因难以被迅速诊断。为了提高二次系统故障诊断的速度和准确性,提出了一种基于Apriori算法的二次系统故障诊断方法。首先通过解析SCD文件实现对虚回路到物理回路的映射关系的建立,构建变电站的二次系统回路。其次借助二次系统故障历史数据,利用Apriori算法求出故障报警信息与二次回路中的故障装置的关联规则,实现故障诊断。与传统故障诊断方法相比,基于Apriori算法的诊断方法节约了人力成本,且简单高效。

In an intelligent substation,the reason of fault in the secondary circuit is difficult to diagnose rapidly.In order to improve the speed and accuracy of secondary system fault diagnosis,a secondary system fault diagnosis method based on the Apriori algorithm is proposed in this paper.First,the mapping relationship between a virtual circuit and the corresponding physical circuit is established by analyzing the substation configuration description(SCD)file,and the circuit diagram of the secondary system in the substation is established.Second,with the help of the fault historical data of the secondary system,the rules for the association between fault alarm information and fault device in the secondary circuit are obtained using the Apriori algorithm,thus realizing the fault diagnosis.Compared with the traditional fault diagnosis methods,the diagnosis method based on the Apriori algorithm saves labor cost.In addition,it is simple and efficient.