Disturbance Observer–Based Backstepping Control for Hypersonic Vehicles with Input Constraints
Publication: Journal of Aerospace Engineering
Volume 37, Issue 1
Abstract
A super-twisting disturbance observer–based adaptive fixed-time antisaturation backstepping control algorithm is designed for hypersonic vehicles with input constraints. First, super-twisting disturbance observers are developed to estimate the lumped disturbances comprising model uncertainties, aerodynamic uncertainties, and external disturbances, which will enhance the robustness of the backstepping controller. To address the problem of explosion of complexity in the backstepping approach, hyperbolic sine tracking differentiators are used and which can achieve a higher tracking accuracy than that of the command filtered backstepping control algorithm. Furthermore, an adaptive fixed-time antisaturation compensator (AFAC) is used to suppress the influence of actuator saturation. AFAC can shorten the saturation duration, and the auxiliary variable of AFAC rapidly converges to zero after the saturation disappears. In this case, the controller degenerates to the former backstepping controller. Finally, the effectiveness of the proposed controller is verified by numerical simulation results.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are proprietary or confidential in nature and may only be provided with restrictions. Restriction: All data may be provided on request, but codes are proprietary or confidential in nature.
Acknowledgments
This work is supported by the Fundamental Research Funds for the Central Universities (Program No. XJS221306).
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Information & Authors
Information
Published In
Journal of Aerospace Engineering
Volume 37 • Issue 1 • January 2024
Copyright
© 2023 American Society of Civil Engineers.
History
Received: Dec 31, 2022
Accepted: Jul 5, 2023
Published online: Sep 28, 2023
Published in print: Jan 1, 2024
Discussion open until: Feb 28, 2024
ASCE Technical Topics:
- Adaptive systems
- Aerodynamics
- Algorithms
- Continuum mechanics
- Detection methods
- Disaster risk management
- Disasters and hazards
- Dynamics (solid mechanics)
- Engineering fundamentals
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- Explosions
- Highway transportation
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- Man-made disasters
- Mathematics
- Methodology (by type)
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- Motion (dynamics)
- Numerical models
- Solid mechanics
- Systems engineering
- Systems management
- Tracking
- Transportation engineering
- Uncertainty principles
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