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Finite-Time Reentry Attitude Control Using Time-Varying Sliding Mode and Disturbance Observer
Joint Authors
Wu, Xuzhong
Tang, Shengjing
Guo, Jie
Zhang, Yao
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-19, 19 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-20
Country of Publication
Egypt
No. of Pages
19
Main Subjects
Abstract EN
This paper presents the finite-time attitude control problem for reentry vehicle with redundant actuators in consideration of planet uncertainties and external disturbances.
Firstly, feedback linearization technique is used to cancel the nonlinearities of equations of motion to construct a basic mode for attitude controller.
Secondly, two kinds of time-varying sliding mode control methods with disturbance observer are integrated with the basic mode in order to enhance the control performance and system robustness.
One method is designed based on boundary layer technique and the other is a novel second-order sliding model control method.
The finite-time stability analyses of both resultant closed-loop systems are carried out.
Furthermore, after attitude controller produces the torque commands, an optimization control allocation approach is introduced to allocate them into aerodynamic surface deflections and on-off reaction control system thrusts.
Finally, the numerical simulation results demonstrate that both of the time-varying sliding mode control methods are robust to uncertainties and disturbances without chattering phenomenon.
Moreover, the proposed second-order sliding mode control method possesses better control accuracy.
American Psychological Association (APA)
Wu, Xuzhong& Tang, Shengjing& Guo, Jie& Zhang, Yao. 2015. Finite-Time Reentry Attitude Control Using Time-Varying Sliding Mode and Disturbance Observer. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-19.
https://search.emarefa.net/detail/BIM-1073347
Modern Language Association (MLA)
Wu, Xuzhong…[et al.]. Finite-Time Reentry Attitude Control Using Time-Varying Sliding Mode and Disturbance Observer. Mathematical Problems in Engineering No. 2015 (2015), pp.1-19.
https://search.emarefa.net/detail/BIM-1073347
American Medical Association (AMA)
Wu, Xuzhong& Tang, Shengjing& Guo, Jie& Zhang, Yao. Finite-Time Reentry Attitude Control Using Time-Varying Sliding Mode and Disturbance Observer. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-19.
https://search.emarefa.net/detail/BIM-1073347
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1073347