Junwei Chen, Zhen Liu, Zhen Han, Kaimin Chang, Guorui Hu
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引用次数: 0
摘要
为了解决电力信息系统中大量报警信息的冗余、不相关和重复问题,提出了一种基于图论聚类和信息熵的报警降噪技术。基于设备的拓扑结构和告警之间的相关性,建立节点-边缘模型。CH index (Calinski-Harabasz)方法用于寻找合适的聚类数,将告警信息聚类。采用信息熵法进行优化和冗余。最后,各系统的平均输出告警占原始告警的36.63%。该方法能有效挖掘报警信息的相似性和差异性,对报警进行自动动态分类,减少误判,帮助电网企业网管人员筛选出核心报警信息,提高管理效率和质量。
Power Information System Alarm Noise Reduction Technology Based on Graph Theory and Information Entropy
In order to deal with the redundancy, irrelevance and repetition of massive alarm information in power information system, this paper proposes an alarm noise reduction technology based on graph theory clustering and information entropy. Based on the topological structure of the device and the correlation between the alarms, the node-edge model is established. The CH index (Calinski-Harabasz) method is used to find the appropriate number of clusters to cluster the alarm information. The information entropy method is used to optimize and redundancy. Finally, the average output alarm of each system accounts for 36.63% of the original alarm. The proposed method can effectively mine the similarity and difference of alarm information, automatically and dynamically classify alarms, reduce misjudgment, help network administrators of power grid enterprises to screen out core alarm information, and improve management efficiency and quality.