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不确定线性时滞系统的鲁棒故障诊断
引用本文:尤富强,田作华,施颂椒. 不确定线性时滞系统的鲁棒故障诊断[J]. 上海大学学报(英文版), 2006, 10(4): 339-345. DOI: 10.1007/s11741-006-0011-z
作者姓名:尤富强  田作华  施颂椒
作者单位:1. 东北大学
2. 上海交通大学
基金项目:Project supported by National Natural Science Foundation ofChina (Grant No .60274058)
摘    要:1 Introduction Owing to the increasing demand for high reliabilityin manyindustrial processes , much attention has beenpaid to the problem of fault detection and diagnosis(FDD) in dynamic systems over the past two decades .Fruitful results can be found in a survey paper[1]andbooks[2 ,3]. It is well known that faults in a dynamic systemcantake many forms .They can be actuator faults ,sensorfaults ,unexpected abrupt changes of some parametersor even unexpected structure changes[4 ,5]. The pur-…

关 键 词:探伤 诊断 粗集 线性系统 时延 不确定度
文章编号:1007-6417(2006)04-0339-07
收稿时间:2004-10-28
修稿时间:2004-12-22

Robust fault diagnosis for linear time-delay systems with uncertainty
Fu-qiang You Ph. D.,Zuo-hua Tian,Song-jiao Shi. Robust fault diagnosis for linear time-delay systems with uncertainty[J]. Journal of Shanghai University(English Edition), 2006, 10(4): 339-345. DOI: 10.1007/s11741-006-0011-z
Authors:Fu-qiang You Ph. D.  Zuo-hua Tian  Song-jiao Shi
Affiliation:(1) School of Information Science and Engineering, Northeastern University, 110004 Shenyang, P.R. China;(2) Department of Automation, Shanghai Jiaotong University, 200030 Shanghai, P.R. China
Abstract:This paper deals with the problem of fault diagnosis problem for a class of linear systems with delayed state and uncertainty. The systems are transformed into two different subsystems. One is not affected by actuator faults so that a robust observer can be designed under certain conditions. The other whose states can be measured is affected by the faults. The proposed observer is utilized in an analytical-redundancy-based approach for actuator and sensor fault detection and diagnosis in time-delay systems. Finally, the applicability and effectiveness of the proposed method is illustrated through numerical examples.
Keywords:fault detection and diagnosis   robust observer   linear systems   time delay   uncertainty
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