高速变体飞行器预定时间再入姿态控制  

Prescribed-time reentry attitude control for high-speed morphing vehicles

作　　者：李梦龙 张秀云 张睿隆 宗群 Menglong LI;Xiuyun ZHANG;Ruilong ZHANG;Qun ZONG(School of Electrical Automation and Information Engineering,Tianjin University,Tianjin 300072,China;Beijing Aerospace Automatic Control Institute,Beijing 100854,China)

机构地区：[1]天津大学电气自动化与信息工程学院,天津300072 [2]北京航天自动控制研究所,北京100854

出　　处：《中国科学:信息科学》2025年第4期918-930,共13页Scientia Sinica(Informationis)

基　　金：国家自然科学基金(批准号:62373273,62073234)资助项目。

摘　　要：高速变体飞行器(high-speed morphing vehicle,HMV)作为一种具有变形能力的飞行器,可以通过调整气动外形适应飞行任务,在航空航天领域具有广泛的应用前景.然而,气动外形变化会导致气动模型不确定,对控制器稳定性和鲁棒性提出了更高的要求.针对HMV再入变体过程中的姿态跟踪需求,为提高姿态跟踪系统收敛速度和鲁棒性能,本文基于预定时间技术设计了一种多变量鲁棒预定时间滑模控制器,并基于李雅普诺夫(Lyapunov)方法给出了闭环稳定性证明.通过数值仿真和实验验证,证明了所提出的控制方法能够有效地实现HMV再入变体过程中的稳定控制,实现姿态跟踪误差在预定时间内收敛至零.High-speed morphing vehicles(HMVs)are deformable aircraft with the capability to adjust their aerodynamic shape to adapt to different flight missions,presenting extensive application prospects in the aerospace field.However,the aerodynamic shape variation of HMVs introduces uncertainties to the aerodynamic model,imposing higher requirements on the stability and robustness of the controller.Addressing the attitude tracking demands of HMVs during reentry variants,this paper proposes a multivariable robust prescribed-time sliding mode controller based on the prescribed-time technique to enhance the convergence speed and robust performance of the attitude tracking system.The closed-loop stability is proven using the Lyapunov method.Through numerical simulations and experimental verification,the effectiveness of the proposed control method is demonstrated in achieving stable control during the reentry variant process of HMVs,ensuring the convergence of attitude tracking errors to zero within the prescribed time.

关 键 词：高速变体飞行器 预定时间控制 再入段姿态控制 跟踪控制 

分 类 号：V448.2[航空宇航科学与技术—飞行器设计]