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Robust inversion based fault estimation for discrete-time LPV systems

Balazs Kulcsar (Institutionen för signaler och system, Reglerteknik) ; Michel Verhaegen
IEEE Transactions on Automatic Control (0018-9286). Vol. 57 (2012), 6, p. 1581-1586.
[Artikel, refereegranskad vetenskaplig]

The article presents a state-space based Fault Diagnosis (FD) method for discrete-time, affine Linear Parameter Varying (LPV) systems. The goal of the technical note is to develop a robust and dynamic inversion based technique for systems with parameter varying representations when an additive, exogenous disturbance signal perturbs the system. After applying geometric concepts for explicit fault inversion, a robust strategy is proposed to attenuate the effect of the unknown disturbance input signal on the fault estimation error. The proposed robust observer is derived as a solution of off-line Linear Matrix Inequality (LMI) conditions. The technical note demonstrates the viability of the novel methodology through a numerical example.

Nyckelord: Discrete-time linear parameter varying (LPV) systems, dynamic inversion, fault detection and isolation, fault diagnosis (FD), robust observers



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Denna post skapades 2012-06-15. Senast ändrad 2013-05-31.
CPL Pubid: 159060

 

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