首页|A novel three-inflection-point sliding mode control framework for forward-tilting morphing aerospace vehicle with performance constraints and actuator faults

A novel three-inflection-point sliding mode control framework for forward-tilting morphing aerospace vehicle with performance constraints and actuator faults

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A prescribed performance control scheme based on the three-inflection-point hyperbolic function and predefined time performance function is proposed to solve the trajectory tracking problem of the forward-tilting morphing aerospace vehicle with time-varying actuator faults.To accurately estimate the loss degree of actuator faults,an immersion and invariance observer based on the predefined time dynamic scale factor is designed to estimate and compensate it.A composite dynamic sliding mode surface is designed using a three-inflection-point hyperbolic function,and a novel three-inflection-point sliding mode control framework is proposed.The convergent domain of the sliding manifold is adjusted by parameters,and the system error convergence is controllable.A transfer function is designed to eliminate the sensitivity of the three-inflection-point hyperbolic slid-ing mode to the unknown initial state,and combined with the barrier Lyapunov function,and the performance constraint of the system is realized.The global asymptotic stability of the system is demonstrated using a strict mathematical proof.The effectiveness and superiority of the proposed control scheme are proven by simulation experiments.

Morphing aerospace vehicleActuator faultsImmersion and invarianceThree-inflection-point sliding mode controlPrescribed performance control

Xinkai LI、Lei DOU、Hongli ZHANG、Yue MENG

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School of Electrical Engineering,Xinjiang University,Urumqi 830047,China

Xinjiang Uygur Autonomous Region Natural Science Foundation,ChinaNational Natural Science Foundation of ChinaOpen Research Fund Program of Beijing National Research Center for Information Science and Technology,China

2022D01C8662263030BR2023KF02011

2024

10.1016/j.cja.2024.03.050

中国航空学报(英文版)
中国航空学会

中国航空学报(英文版)

CSTPCDEI
影响因子：0.847
ISSN：1000-9361
年,卷(期)：2024.37(8)
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