[en] This paper is devoted to the design of an H1 discrete-time nonlinear state observer
for an anaerobic digestion model. Indeed, the designed observer can be used for di erent
class of systems, mainly linear systems, LPV systems with known and bounded parameters,
and nonlinear Lipschitz systems. We use an LMI approach to guarantee the H1 asymptotic
stability of the estimation error despite the disturbances a ecting the system dynamics and
measurements. The synthesised LMI is relaxed due to the inclusion of additional decision
variables which enhance its feasibility. This was possible due to the use of a suitable reformulation
of the Young's inequality. Simulation results are given to show the robustness of the designed
observer.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Chaib Draa, Khadidja ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit
Voos, Holger ; University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit ; University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT)
External co-authors :
yes
Language :
English
Title :
An LMI-Based H_infty Discrete-Time Nonlinear State Observer Design for an Anaerobic Digestion Model
Publication date :
July 2017
Event name :
World Congress of the International Federation of Automatic Control (IFAC 2017)
Event place :
Toulouse, France
Event date :
from 09-07-2017 to 14-07-2017
Main work title :
World Congress of the International Federation of Automatic Control, Toulouse 9-14 July 2017
