H − /H ∞ robust fault detection observer for uncertain switched systems

Ahmad Farhat (1) , Damien Koenig (1)

1 GIPSA-SLR - GIPSA - Systèmes linéaires et robustesse

This paper addresses a method for robust fault detection (RFD) by maximizing the fault to residual sensitivity. It uses the newly developed H− index properties and minimizing the well known H∞ norm for worst case uncertainties and disturbance attenuation. These objectives are coupled to a transient response specification expressed by eigen region assignment formulation. The 3-objective robust fault detection problem is formulated as LMI feasibility problem in which a cost function is minimized subject to LMI constraints.

Mots clés: H− index; H∞ norm; LMI; Residual generation; robust fault detection; uncertain switched systems

Domaines: Automatique / Robotique

Ahmad Farhat, Damien Koenig. H − /H ∞ robust fault detection observer for uncertain switched systems. ECC 2015 - 14th European Control Conference, Jul 2015, Linz, Austria. ⟨hal-01233676⟩