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Adaptive sensor-fault tolerant control for a class of multivariable uncertain nonlinear systems
- Source :
- ISA Transactions. 55:100-115
- Publication Year :
- 2015
- Publisher :
- Elsevier BV, 2015.
-
Abstract
- This paper deals with the active fault tolerant control (AFTC) problem for a class of multiple-input multiple-output (MIMO) uncertain nonlinear systems subject to sensor faults and external disturbances. The proposed AFTC method can tolerate three additive (bias, drift and loss of accuracy) and one multiplicative (loss of effectiveness) sensor faults. By employing backstepping technique, a novel adaptive backstepping-based AFTC scheme is developed using the fact that sensor faults and system uncertainties (including external disturbances and unexpected nonlinear functions caused by sensor faults) can be on-line estimated and compensated via robust adaptive schemes. The stability analysis of the closed-loop system is rigorously proven using a Lyapunov approach. The effectiveness of the proposed controller is illustrated by two simulation examples.
- Subjects :
- Engineering
Adaptive control
business.industry
Applied Mathematics
Multivariable calculus
MIMO
Stability (learning theory)
Control engineering
Fault tolerance
Computer Science Applications
Nonlinear system
Control and Systems Engineering
Control theory
Backstepping
Electrical and Electronic Engineering
business
Instrumentation
Subjects
Details
- ISSN :
- 00190578
- Volume :
- 55
- Database :
- OpenAIRE
- Journal :
- ISA Transactions
- Accession number :
- edsair.doi.dedup.....3041a446285b2d40302b11de7c7fe23a