Modeling and Fixed-time Prescribed Performance Control for Hypersonic Morphing Vehicle

被引：0
|
作者：
Cao C.-Y. [1 ]
Li F.-B. [1 ]
Liao Y.-X. [1 ]
Yin Z.-Y. [1 ]
Gui W.-H. [1 ]
机构：
[1] School of Automation, Central South University, Changsha
来源：
Zidonghua Xuebao/Acta Automatica Sinica | 2024年 / 50卷 / 03期
基金：
中国国家自然科学基金;
关键词：
disturbance observer; dynamic surface control; fixed-time; Hypersonic morphing vehicle; prescribed performance;
D O I：
10.16383/j.aas.c230240
中图分类号：
学科分类号：
摘要：
Taking a folding hypersonic morphing vehicle (HMV) as the research object, comprehensively considering dynamic changes caused by the deformation of aerodynamic characteristics and kinetics characteristics, as well as the influence of model uncertainties and external disturbances, the research on vehicle motion modeling and fixed-time prescribed performance control method is carried out. Firstly, the motion model and attitude control model of hypersonic morphing vehicle are established. Then, a fixed-time disturbance observer is established to accurately estimate the complex disturbance composed of model uncertainties and external disturbances, a novel fixed-time prescribed performance function is designed to quantitatively describe the expected performance constraints, the attitude controller is designed by integrating the dynamic surface control technique into the prescribed performance control framework, and the fixed-time stability of the closed-loop system is proved by Lyapunov stability theory. Finally, the numerical simulation is carried out to verify the effectiveness and robustness of the proposed method. © 2024 Science Press. All rights reserved.
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页码：486 / 504
页数：18
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