Unknown input observer: a physical approach

Christophe Sueur (1) , Dapeng Yang

1 LAGIS-MOCIS

The object of this paper is the study of a new unknown input observer for linear models. This new observer has some classical restrictive conditions proposed for other ones: infinite structure condition and Hurwitz conditions for invariant zeros. The main contribution are twofold: this new observer has the same state space representation as the initial state model and it is shown to be very accurate. Simulation results are proposed for a DC motor example with analysis of two other classical methodologies.

Mots clés: Unknown input observers; Bond graph; linear models; invariant zeros.; invariant zeros

Domaines: Automatique / Robotique

Christophe Sueur, Dapeng Yang. Unknown input observer: a physical approach. 6th International Conference on "Integrated Modeling and Analysis in Applied Control and Automation" IMAACA'12, part of I3M2012 "International Multidisciplinary Modeling and Simulation Multiconference, Sep 2012, Vienne, Austria. pp.cd-rom. ⟨hal-00749584⟩