新型解析冗余关系法在传感器故障诊断中的应用  

Application of new type method of analytical redundancy relation in sensor fault diagnosis

作　　者：帕孜来.马合木提 董小亮[1] 杨莲[1] 廖俊勃 

机构地区：[1]新疆大学电气工程学院,新疆乌鲁木齐830049

出　　处：《传感器与微系统》2014年第7期157-160,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(61364010)

摘　　要：介绍了多容水箱系统所有可能出现的故障类型,并分析了多容水箱系统的结构与特点。利用基于键合图模型的新型解析冗余关系(ARR)方法对多容系统中传感器故障进行了研究。根据键合图理论给出了多容水箱系统键合图模型,通过在系统键合图中加入观测信号和虚拟传感器的方法建立系统的诊断键合,根据诊断键合图模型得到系统的ARR。通过分析诊断键合图的因果关系构建系统的故障特征矩阵。利用20-sim键合图仿真软件对各类故障进行仿真分析,验证了基于键合图模型的新型ARR方法在传感器故障检测与隔离方面的可行性。All the possible fault types of multi-tank system are introduced,and the structure and characteristics of multi-tank system are analyzed.The sensor fault of multi-tank system is researched through new type of method of analytical redundancy relationship（ ARR） based on bond graph model.Firstly,the multi-tank system bond graph model is proposed by he theory of bond graph.Diagnostic bond graph through adding virtual sensor in the bond graph of the system is set up,and obtain ARR.To build the system fault feature matrix by analyzing the causal relation of diagnostic bond graph model.Finally,all kinds of fault are analyzed by simulation with 20-sim bond graph simulation software,and feasibility of the new type of method of ARR based on bond graph model in sensor fault detection and isolation is verified.

关 键 词：三容水箱 键合图 故障特征 解析冗余关系 传感器 2-sim 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]