Fault diagnosis based on adaptive polytopic observer for LPV descriptor systems
Fault diagnosis based on adaptive polytopic observer for LPV descriptor systems
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DOI：
10.3182/20120829-3-mx-2028.00060
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
M. Rodrigues;H. Hamdi;D. Theilliol;C. Mechmeche;N. Braiek
中科院分区：
文献类型：
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作者：
M. Rodrigues;H. Hamdi;D. Theilliol;C. Mechmeche;N. Braiek
针对多面体线性变参数广义系统时变执行器故障，提出了一种自适应多面体观测器的故障检测与估计方法。本文将一种针对正则LTI系统的故障诊断方法推广到多面体LPV广义系统。给出了该APO的设计和稳定性条件。在等式约束下，通过LMI(线性矩阵不等式)技术进行设计。文中以电路为例说明了该故障检测与估计方案的性能。
This paper presents an Adaptive Polytopic Observer (APO) design in order to develop a fault detection and estimation method dedicated to polytopic Linear Parameter Varying (LPV) descriptor systems under time-varying actuator faults. This paper extends a Fault Diagnosis (FD) method developed for regular LTI systems to polytopic LPV descriptor systems. The design and stability conditions of this APO are provided. The design is formulated through LMI (Linear Matrix Inequalities) techniques under equality constraints. The performances of the proposed fault detection and estimation scheme are illustrated using an electrical circuit.