Adaptive Robust Actuator Fault Accommodation for a Class of Uncertain Nonlinear Systems with Unknown Control Gains
Joint Authors
Mu, Zhenxing
Wu, Yuefei
Yao, Jianyong
Yang, Fan
Ma, Dawei
Le, Guigao
Source
Mathematical Problems in Engineering
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-04-08
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
An adaptive robust fault tolerant control approach is proposed for a class of uncertain nonlinear systems with unknown signs of high-frequency gain and unmeasured states.
In the recursive design, neural networks are employed to approximate the unknown nonlinear functions, K-filters are designed to estimate the unmeasured states, and a dynamical signal and Nussbaum gain functions are introduced to handle the unknown sign of the virtual control direction.
By incorporating the switching function σ algorithm, the adaptive backstepping scheme developed in this paper does not require the real value of the actuator failure.
It is mathematically proved that the proposed adaptive robust fault tolerant control approach can guarantee that all the signals of the closed-loop system are bounded, and the output converges to a small neighborhood of the origin.
The effectiveness of the proposed approach is illustrated by the simulation examples.
American Psychological Association (APA)
Wu, Yuefei& Ma, Dawei& Yao, Jianyong& Le, Guigao& Mu, Zhenxing& Yang, Fan. 2014. Adaptive Robust Actuator Fault Accommodation for a Class of Uncertain Nonlinear Systems with Unknown Control Gains. Mathematical Problems in Engineering،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-455407
Modern Language Association (MLA)
Wu, Yuefei…[et al.]. Adaptive Robust Actuator Fault Accommodation for a Class of Uncertain Nonlinear Systems with Unknown Control Gains. Mathematical Problems in Engineering No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-455407
American Medical Association (AMA)
Wu, Yuefei& Ma, Dawei& Yao, Jianyong& Le, Guigao& Mu, Zhenxing& Yang, Fan. Adaptive Robust Actuator Fault Accommodation for a Class of Uncertain Nonlinear Systems with Unknown Control Gains. Mathematical Problems in Engineering. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-455407
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-455407