基于代码书的电力二次系统故障定位方法  

Codebook based fault localization in power secondary systems

作　　者：叶昊[1] 范牛军[1] 刘宝峰 李青志 

机构地区：[1]清华大学自动化系,北京100084 [2]深圳海联讯科技股份有限公司,深圳518057

出　　处：《清华大学学报（自然科学版）》2012年第12期1670-1676,共7页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金面上项目(60974059);国家自然科学基金重点项目(60736026);国家自然科学基金创新群体(61021063)

摘　　要：将通信网络故障诊断中常使用的基于代码书的故障定位技术应用于电力调度中心二次系统的运行维护中。针对典型的电力调度中心二次系统结构,根据其中故障和症状的因果关系,分别建立了网络通信层、业务应用层和各个物体实体的代码书,进而给出了基于这些代码书的故障定位方法。该方法根据二次系统内的告警信息生成症状向量,再计算此症状向量与相应代码书中各列向量的Hamming距离,将与其距离最小的列向量所代表的故障定位为故障根源。此方法不但考虑了二次系统中的网络设备和其他硬件设施,还将各种软件系统和业务应用包含在监管对象之中,提高了二次系统运行维护的效率和自动化程度。The codebook based fault localization technique, which is widely used in network fault diagnosis, is applied here to the secondary systems of power dispatching centers. Given a typical secondary system topology, eodehooks are generated for the network layer, application layer, and physical entities in accordance with the relationships between faults and symptoms. The fault localization method is then based on the codebooks. The system generates a symptom vector in light of the alarms and then computes the Hamming distance between the symptom vector and the codebook column vectors. The fault whose vector has the nearest distance to the symptom vector is considered to be the root fault. This method considers not only the networks and hardware in the secondary system, hut also the software and business applications, which improves the maintenance efficiency and automation in secondary systems.

关 键 词：故障定位 电力二次系统运行维护 代码书 二分图 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]