Vibration Control of an Axially Moving System with Restricted Input

In this study, we consider the global stabilization of an axially moving system under the condition of input saturation nonlinearity and external perturbation. Based on Lyapunov redesign method, observer backstepping, and high-gain observers, an output feedback control strategy with an auxiliary sys...

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Bibliographic Details
Published inComplexity (New York, N.Y.) Vol. 2019; no. 2019; pp. 1 - 10
Main Authors Zhu, Dachang, Liu, Guiyun, Ma, Yonghao, Zhao, Zhijia, Wen, Guilin
Format Journal Article
LanguageEnglish
Published Cairo, Egypt Hindawi Publishing Corporation 01.01.2019
Hindawi
Hindawi Limited
Hindawi-Wiley
Subjects
Control stability
Control systems
Cybernetics
Dimensional stability
Disturbance observers
Dynamic stability
Feedback control
Neural networks
Output feedback
Redesign
Robust control
Saturation
Sensors
Stability analysis
Vibration control
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Summary:In this study, we consider the global stabilization of an axially moving system under the condition of input saturation nonlinearity and external perturbation. Based on Lyapunov redesign method, observer backstepping, and high-gain observers, an output feedback control strategy with an auxiliary system is constructed to eliminate the input saturation constraint effect and suppress the string system vibration, and a boundary disturbance observer is exploited to cope with the external disturbance. The stability of the controlled system is analyzed and proven based on Lyapunov stability without simplifying or discretizing the infinite dimensional dynamics. The presented simulation results show the effectiveness of the derived control.
ISSN:1076-2787
1099-0526
DOI:10.1155/2019/2386435