NDLI: Dynamic surface tracking controller design for a constrained hypersonic vehicle based on disturbance observer

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Dynamic surface tracking controller design for a constrained hypersonic vehicle based on disturbance observer

Content Provider	SAGE Publishing
Author	Wang, Fang Zou, Qin Hua, Changchun Zong, Qun
Copyright Year	2017
Abstract	The tracking control problem of a flexible air-breathing hypersonic vehicle subjects to aerodynamic parameter uncertainty and input constraint is investigated by combining nonlinear disturbance observer and dynamic surface control. To design controller simply, a control-oriented model is firstly derived and divided into two subsystems, velocity subsystem and altitude subsystem based on the engineering backgrounds of flexible air-breathing hypersonic vehicle. In every subsystem, compounded disturbances are included to consider aerodynamic uncertainty and the effect of the flexible modes. Then, disturbance observer is not only used to handle the compounded disturbance but also to handle the input constraint, where the estimation error converges to a random small region through appropriately choosing the observer parameters. To sequel, the disturbance observer–based robust control scheme and the disturbance observer-based dynamic surface control scheme are developed for the velocity subsystem and altitude subsystem, respectively. Besides, novel filters are designed to alleviate the problem of “explosion of terms” induced by backstepping method. On the basis of Lyapunov stability theory, the presented control scheme can assure that tracking error converges to an arbitrarily small neighborhood around zero by rigorous theoretical analysis. At last, simulation result shows the effectiveness of the presented control method.
Related Links	https://journals.sagepub.com/doi/pdf/10.1177/1729881417703776?download=true
ISSN	17298806
Issue Number	3
Volume Number	14
Journal	International Journal of Advanced Robotic Systems (ARX)
e-ISSN	17298814
DOI	10.1177/1729881417703776
Language	English
Publisher	Sage Publications UK
Publisher Date	2017-05-18
Publisher Place	London
Access Restriction	Open
Rights Holder	© The Author(s) 2017
Subject Keyword	aerodynamic uncertainty DOB FAHV dynamic surface control input constraint
Content Type	Text
Resource Type	Article
Subject	Artificial Intelligence Computer Science Applications Software

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