Journal
NEUROCOMPUTING
Volume 157, Issue -, Pages 22-32Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.neucom.2015.01.042
Keywords
T-S fuzzy system; Interval type-2 systems; Actuator faults; H infinity performance
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Funding
- National Natural Science Foundation of China [61304003, 61203002, 61304002]
- Program for Liaoning Excellent Talents in University [LJQ20141126]
- Key Laboratory of Integrated Automation for the Process Industry, Northeast University
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This paper is concerned with the problem of fault-tolerant control for discrete-time interval type-2 (IT2) fuzzy time delay system with actuator faults under imperfect premise matching. The time-varying delay and actuator fault are first taken into account for the IT2 fuzzy discrete-time systems. The novel IT2 state-feedback controller and the IT2 fuzzy model share different lower and upper membership functions. The fault-tolerant controller is designed to compensate for the effect of faults by stabilizing the closed-loop system under the actuator failures. Furthermore, the standard 112 state-feedback controller is designed such that the closed-loop system is asymptotically stable and has an H infinity performance. The obtained conditions of the fault-tolerant controller and the standard IT2 controller can be expressed by the convex optimization problems. A numerical example is presented to show the effectiveness of the proposed results. (C) 2015 Elsevier B.V. All rights reserved.
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