Paper Info
Title
Fault Detection And Isolation Of T-S Fuzzy Systems With Time-Delay Using Geometric Approach
Abstract
This paper investigates the fault detection and isolation problem for Takagi-Sugeno fuzzy time-delay systems under the framework of geometric method. First, the geometric concept of unobservability subspace is introduced and the algorithm for constructing the subspace is presented. Then, based on the above algorithm, the faults are divided into the different unobservability subspaces, and the reduced-order subsystems set corresponding to the fault set is constructed according to the geometrical properties of factor space and canonical projection. Finally, a set of structured residuals which are sensitive to a single fault and decoupled from other faults is established by designing an observer for the subsystems. In addition, H-infinity performance is introduced to attenuate the effects of disturbances and error signals caused by a time-varying delay on the residual. Simulation example verifies the effectiveness of the proposed method.
Year
DOI
Venue
2021
10.1007/s40815-020-01023-4
INTERNATIONAL JOURNAL OF FUZZY SYSTEMS
Keywords
DocType
Volume
Takagi-Sugeno (T-S) fuzzy systems, Time-delay, Fault detection and isolation (FDI), Geometric method
Journal
23
Issue
ISSN
Citations 
4
1562-2479
0
PageRank 
References 
Authors
0.34
0
2
Name
Order
Citations
PageRank
P. Liu1508.37
Xiao-Jian Li200.68