| 不确定线性时滞系统的鲁棒故障诊断 |
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| 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. |
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| 作者姓名： | 尤富强 田作华 施颂椒 |
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| 作者单位： | 1. 东北大学
2. 上海交通大学 |
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| 基金项目： | Project supported by National Natural Science Foundation ofChina (Grant No .60274058) |
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| 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 paper1]andbooks2 ,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 changes4 ,5]. The pur-…
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| 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 |
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| 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. |
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| Authors: | Fu-qiang You Ph D Zuo-hua Tian Song-jiao Shi |
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| Institution: | (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 |
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| 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. |
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| Keywords: | fault detection and diagnosis robust observer linear systems time delay uncertainty |
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