| 基于无记忆降阶观测器的网络化控制系统故障检测方法 |
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| 引用本文： | 郑英,方华京,王华,谢林柏.基于无记忆降阶观测器的网络化控制系统故障检测方法[J].自动化学报,2003,29(4):559-566. |
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| 作者姓名： | 郑英 方华京 王华 谢林柏 |
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| 作者单位： | 1.华中科技大学控制系,武汉 |
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| 基金项目： | NationalNaturalScienceFoundationofP .R .China (6 0 2 74 0 14 )，HubeiProvincialNaturalScienceFoundation (2 0 0 0J15 1)，DoctorFoundationofChinaEducationMinistryandIntelligentManufactureTechnologyKeyLabFoundationofEducationMinistryofP .R .Chin |
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| 摘 要： | 网络化控制系统(Networked Control System,简称NCS)研究的是如何通过网络实现闭
环控制,是涉及控制科学和计算机网络等多个学科知识的跨学科研究领域.本文将网络化控制系
统视为带有时延的采样控制系统,构造了一个无记忆的降阶状态观测器,通过比较观测器输出和
系统实际输出来产生残差,从而对网络化系统的控制故障进行了检测.仿真结果表明此方法是可
行的.
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| 关 键 词： | 故障检测 网络化控制系统 网络时延 降阶观测器 采样控制系统 |
| 收稿时间： | 2002-3-11 |
Fault Detection Approach for Networked Control System Based on a Memoryless Reduced-Order Observer |
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| ZHENG Ying,Fang Hua-jing,WANG Hua,XIE Lin-bo.Fault Detection Approach for Networked Control System Based on a Memoryless Reduced-Order Observer[J].Acta Automatica Sinica,2003,29(4):559-566. |
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| Authors: | ZHENG Ying Fang Hua-jing WANG Hua XIE Lin-bo |
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| Affiliation: | 1.Department of Control Sctence and Engineering,Huazhong University of Science and Technology,Wuhan |
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| Abstract: | The networked control system(NCS) deals with how to realize close loop control through network. It is a multi subject research region involving control science, computer network, etc. In this paper, the networked control system is regarded as a sampled data control system with time delay. A memoryless reduced order state observer is constructed. Then the residual is generated by comparing the output of the observer with the output of the practical system, and faults of the NCS is thus detected. Simulation result shows the approach is feasible. |
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| Keywords: | Fault detection networked control system network induced delay reduced order observer sampled data control system |
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