Creator:
Moodi, Hoda ; Farrokhi, Mohammad
Contributor:
Korbicz, Józef - red. ; Uciński, Dariusz - red.
Title:
Robust observer design for Sugeno systems with incremental quadratic nonlinearity in the consequent
Group publication title:
Subject and Keywords:
nonlinear Sugeno model ; incremental quadratic constraint ; robust observer
Abstract:
This paper is concerned with observer design for nonlinear systems that are modeled by T-S fuzzy systems containing parametric and nonparametric uncertainties. Unlike most Sugeno models, the proposed method contains nonlinear functions in the consequent part of the fuzzy IF-THEN rules. This will allow modeling a wider class of systems with smaller modelling errors. ; The consequent part of each rule contains a linear part plus a nonlinear term, which has an incremental quadratic constraint. This constraint relaxes the conservativeness introduced by other regular constraints for nonlinearities such as the Lipschitz conditions. To further reduce the conservativeness, a nonlinear injection term is added to the observer dynamics. Simulation examples show the effectiveness of the proposed method compared with the existing techniques reported in well-established journals.
Publisher:
Zielona Góra: Uniwersytet Zielonogórski
Date:
Resource Type:
DOI:
Pages:
Source:
AMCS, volume 23, number 4 (2013) ; click here to follow the link