A Decentralized Optimal LQ State Observer Based On An Augmented Lagrangian Approach

Didier Georges (1) , Gildas Besancon (1) , Jean-François Dulhoste (2)

1 GIPSA-SYSCO - GIPSA - Systèmes non linéaires et complexité
2 ULA - Universidad de Los Andes [Mérida, Venezuela]

This paper is devoted to the design of a decentralized optimal batch LQ state observer for state estimation of large-scale interconnected systems, well suited for implementation on a sensor network. The here-proposed approach relies on both the use of an augmented Lagrangian formulation and a price-decomposition-coordination algorithm. The state estimation of an open-channel hydraulic system illustrates the effectiveness of this approach and is used to provide a comparison with alternative methods.

Domaines: Automatique / Robotique

Didier Georges, Gildas Besancon, Jean-François Dulhoste. A Decentralized Optimal LQ State Observer Based On An Augmented Lagrangian Approach. Automatica, 2014, 50 (5), pp.1451-1458. ⟨10.1016/j.automatica.2014.03.006⟩. ⟨hal-00938789⟩