Relaxed Fault Estimation of Discrete-Time Nonlinear System Based on a New Multi-Instant Real-Time Scheduling Fuzzy Observer

Relaxed fault estimation (FE) criteria of a class of discrete-time nonlinear plants are proposed based on a new multi-instant real-time scheduling fuzzy FE observer. Compared with the existing methods given in the recent literature, the newly developed fuzzy observer is capable of providing much fre...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on systems, man, and cybernetics. Systems man, and cybernetics. Systems, 2022-09, Vol.52 (9), p.5556-5566
Main Authors: Xie, Xiang-Peng, Yue, Dong, Ahn, Choon Ki
Format: Article
Language:English
Subjects:
Actuators
Criteria
Discrete time systems
Estimation
Fault estimation (FE)
fault system
fuzzy system
Iron
Job shop scheduling
Linear matrix inequalities
Lyapunov methods
multi-instant scheduling
Nonlinear systems
Observers
Real time
Real-time systems
Scheduling
switching observer
Weighting functions
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Relaxed fault estimation (FE) criteria of a class of discrete-time nonlinear plants are proposed based on a new multi-instant real-time scheduling fuzzy FE observer. Compared with the existing methods given in the recent literature, the newly developed fuzzy observer is capable of providing much freedom for reducing the conservatism of designing feasible FE criteria. At each sampling point, the information of adjacent groups of normalized fuzzy weighting functions can be updated and utilized for deciding the activated mode of our developed fuzzy FE observer. Based on this, an exclusive pair of gain matrices can be given by introducing a set of well-designed free matrices into the designed FE criteria for every activated mode. Moreover, it can be found that the proposed result will include the previous one as a special case if all of those free matrices are removed. Finally, the well-known nonlinear truck-trailer plant with actuator fault is utilized to validate the superiority of our approach over the existing ones reported in the literature.
ISSN:2168-2216
2168-2232
DOI:10.1109/TSMC.2021.3129522