| 基于观测器的网络控制系统故障检测 |
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| 引用本文： | 刘云霞,陈静.基于观测器的网络控制系统故障检测[J].临沂师范学院学报,2009,31(3):125-130. |
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| 作者姓名： | 刘云霞 陈静 |
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| 作者单位： | 1. 深圳信息职业技术学院,广东深圳,518029
2. 日照职业技术学院,山东,日照,276826 |
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| 基金项目： | 国家自然科学基金，教育部高等学校博士学科点专项科研基金，山东省博士基金 |
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| 摘 要： | 对于网络时滞小于一个采样周期的网络控制系统，建立了系统的离散化模型，并在此基础上研究了基于观测嚣的故障检测问题．把不确定时滞对残差系统产生的影响描述为未知输入，将残差产生器设计归结为后置滤波器和观测器增益矩阵的求解，给出了网络控制系统巩故障检测的矩阵Ricatti方程方法，进一步通过算例进行MATLAB仿真研究，验证提出算法的有效性．
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| 关 键 词： | H∞故障检测 网络控制系统 网络时滞 Ricatti方程 |
Observer-Based Fault Detection for Network Control Systems |
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| LIU Yun-xia,CHEN Jing.Observer-Based Fault Detection for Network Control Systems[J].Journal of Linyi Teachers' College,2009,31(3):125-130. |
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| Authors: | LIU Yun-xia CHEN Jing |
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| Institution: | 1. Shenzhen Institute of Information Technology, Shenzhen Guangdong 518029, China; 2. Rizhao Polytechnic, Rizhao Shandong 276826, China) |
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| Abstract: | For network control system with unknown network-induced time delay of less than one sampling period, a discrete-time system model is firstly established and the influence of the unknown network-induced time delay is handled as an unknown input. Then the problem of observer-based fault detection for NCS can be solved by applying an H to optimization approach. Both the observer gain matrix and the post-filter have been obtained by solving a matrix Riccati equation, and furthermore a numerical example is given to show the effectiveness of the proposed method by using MATLAB tool. |
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| Keywords: | Hot fault detection network control system network-induced time delay Ricatti equation |
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