Adaptive observer for discrete time state affine systems

Alexandru Ticlea (1) , Gildas Besancon (2)

1 Automatics and Syst. Engineering
2 GIPSA-SYSCO - GIPSA - Systèmes non linéaires et complexité

In this paper, the discrete-time exponential forgetting factor observer for state affine systems is specialized for the joint estimation of state and parameters, leading to an adaptive observer in which the decay rates of the estimation errors for the two distinct objects to be estimated can be disjoined. Experimental results for the adaptive observation of rotor time constant and stator resistance of an induction motor are presented as example of application

Mots clés: System state estimation; System identification; Adaptive filters; Induction motors

Domaines: Automatique / Robotique

Alexandru Ticlea, Gildas Besancon. Adaptive observer for discrete time state affine systems. SYSID 2012 - 16th IFAC Symposium on System Identification, Jul 2012, Bruxelles, Belgium. pp.n/c, ⟨10.3182/20120711-3-BE-2027.00408⟩. ⟨hal-00741403⟩