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高超声速变外形飞行器建模与固定时间预设性能控制

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以一种折叠式高超声速变外形飞行器(Hypersonic morphing vehicle,HMV)为研究对象,综合考虑变形引起的气动特性、动力学特性的动态变化和模型不确定性、外部干扰的影响,开展飞行器建模与固定时间预设性能控制方法研究.首先,建立高超声速变外形飞行器的运动模型和姿态控制模型;然后,采用固定时间干扰观测器实现对模型不确定性和外部干扰构成的复合总扰动的精确估计,并设计一种新型固定时间预设性能函数以定量描述期望性能约束,在此基础上,基于预设性能控制架构并结合动态面控制技术设计预设性能姿态控制器,利用Lyapunov稳定性理论证明闭环系统的固定时间稳定性;最后,通过数值仿真验证所提出方法的有效性和鲁棒性.
Modeling and Fixed-time Prescribed Performance Control for Hypersonic Morphing Vehicle
Taking a folding hypersonic morphing vehicle(HMV)as the research object,comprehensively consider-ing 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 es-timate the complex disturbance composed of model uncertainties and external disturbances,a novel fixed-time pre-scribed performance function is designed to quantitatively describe the expected performance constraints,the atti-tude 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.Fi-nally,the numerical simulation is carried out to verify the effectiveness and robustness of the proposed method.

Hypersonic morphing vehiclefixed-timeprescribed performancedisturbance observerdynamic sur-face control

曹承钰、李繁飙、廖宇新、殷泽阳、桂卫华

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中南大学自动化学院 长沙 410083

高超声速变外形飞行器 固定时间 预设性能 干扰观测器 动态面控制

国家优秀青年科学基金国家自然科学基金国家自然科学基金国家自然科学基金湖南省自然科学基金装备预研教育部联合基金湖南省科技重大专项湖南省重点研发计划中央高校基本科研业务费专项中南大学项目

622223176197331962003372621034462022JJ406338091B0321342021GK10302023GK20232023ZZTS0345

2024

10.16383/j.aas.c230240

自动化学报
中国自动化学会 中国科学院自动化研究所

自动化学报

CSTPCD北大核心
影响因子：1.762
ISSN：0254-4156
年,卷(期)：2024.50(3)
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