| LMI Approach to Mixed H_｜H∞ Fault Detection Observer Design |
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| 引用本文： | 张迎春,吴丽娜,李璟璟,陈雪芹.LMI Approach to Mixed H_｜H∞ Fault Detection Observer Design[J].天津大学学报(英文版),2012,18(5):343-349. |
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| 作者姓名： | 张迎春 吴丽娜 李璟璟 陈雪芹 |
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| 作者单位： | Research Center of Satellite Technology,Harbin Institute of Technology |
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| 基金项目： | Supported by National Natural Science Foundation of China (No. 61104026);Open Fund for National Defense Key Subject Laboratory ofSmall Spacecraft Technology (No. HIT. KLOF. 2009092) |
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| 摘 要： | To investigate the robust fault detection(RFD) observer design for linear uncertain systems,the H_ index and H ∞ norm are used to describe this observer design as optimization problems.Conditions for the existence of such a fault detection observer are given in terms of matrix inequalities.The solution is obtained by new iterative linear matrix inequality(ILMI) algorithms.The RFD observer design over finite frequency range in which D f does not have full column rank for a system is also considered.Numerical example demonstrates that the designed fault detection observer has high sensitivity to the fault and strong robustness to the unknown input.
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| 关 键 词： | 鲁棒故障检测 观测器设计 线性不确定系统 线性矩阵不等式 优化问题 ILMI 频率范围 高灵敏度 |
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