Towards robust fault detection for Takagi-Sugeno nonlinear systems.
ISA Trans
; 2024 May 15.
Article
in En
| MEDLINE
| ID: mdl-38772803
ABSTRACT
This paper addresses robust fault detection observer design for a class of discrete-time Takagi-Sugeno nonlinear systems. A novel design method is presented based on finite-frequency H-/H∞ indices and peak-to-peak analysis. The finite-frequency H- and H∞ indices are utilized to characterize fault sensitivity and disturbance robustness, respectively. The peak-to-peak analysis is used to derive a dynamic threshold. An iterative algorithm is further developed to reduce conservatism. Theoretical proof shows that the performance of the proposed method is not worse than some existing works. Simulation results demonstrate the validity and viability of the proposed method.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
ISA Trans
Year:
2024
Document type:
Article