Event-triggered fast finite time control for hypersonic morphing vehicles

被引：0

作者：

Zhang H. ^{[1
]}

Wang P. ^{[1
]}

Tang G. ^{[1
]}

Bao W. ^{[2
]}

机构：

[1] College of Aerospace Science and Engineering, National University of Defense Technology, Changsha

[2] China Aerospace Science & Technology Corporation, Beijing

来源：

Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2023年 / 44卷 / 15期

关键词：

attitude control; dynamic event-triggering mechanism; finite time control; hypersonic morphing vehicle; sliding mode control; switching event-triggering mechanism;

D O I：

10.7527/S1000-6893.2023.28494

中图分类号：

学科分类号：

摘要：

This paper proposes a novel event-triggered fast finite time sliding mode control for the hypersonic vehicle with frequent actuator deflection in the morphing phase. The original model of the hypersonic morphing vehicle is transformed into the control-oriented model，which is employed in the controller design. The fast finite time control theory is adopted to develop a control system for the hypersonic morphing phase. The switching dynamic event-triggering mechanism is introduced to reduce the frequency of actuator deflection. Meanwhile，the possible performance loss is fully considered in the procedure. The Lyapunov theory is utilized to prove the stability of the closed-loop system and the convergence of the tracking error. Compared with conventional finite-time control methods，fast finite-time control enhances the convergence rate when the system state is far from the equilibrium point. Furthermore，the event-triggering mechanism effectively reduces the frequency of actuating the actuator without obvious performance loss. Simulation verifies the effectiveness and excellent performance of the controller proposed. © 2023 AAAS Press of Chinese Society of Aeronautics and Astronautics. All rights reserved.

引用

共 28 条

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