Adaptive compensation for infinite number of actuator failures/faults using output feedback control

Compensation for infinite number of actuator failures/faults using output feedback control is of both theoretical and practical importance. However, it is challenging and thus still remains open so far in the field of adaptive control. In this paper, we solve this problem by proposing a new tuning f...

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Bibliographic Details
Published inInformation sciences Vol. 399; pp. 1 - 12
Main Authors Lai, Guanyu, Wen, Changyun, Liu, Zhi, Zhang, Yun, Philip Chen, C.L., Xie, Shengli
Format Journal Article
LanguageEnglish
Published Elsevier Inc 01.08.2017
Subjects
Actuator failures
Adaptive control
Backstepping
Fault-tolerant control
Nonlinear systems
Backstepping
Fault-tolerant control
Adaptive control
Actuator failures
Nonlinear systems
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Summary:Compensation for infinite number of actuator failures/faults using output feedback control is of both theoretical and practical importance. However, it is challenging and thus still remains open so far in the field of adaptive control. In this paper, we solve this problem by proposing a new tuning function based control scheme. It is demonstrated that all the signals of the closed-loop system are globally bounded and the steady-state tracking error can be reduced as small as desired, regardless of a possibility that there are infinite number of actuator failures. Moreover, when the number of actuator failures becomes finite, our scheme further guarantees that both the tracking error and state estimation errors converge to zero asymptotically.
ISSN:0020-0255
1872-6291
DOI:10.1016/j.ins.2017.02.022