Fuzzy Disturbance Observer-Based Fixed-Time Sliding Mode Control for Hypersonic Morphing Vehicles With Uncertainties

被引：19

作者：

Chen, Haolan ^{[1
]}

Wang, Peng ^{[1
]}

Tang, Guojian ^{[1
]}

机构：

[1] Natl Univ Def Technol, Coll Aerosp Sci & Engn, Changsha 410073, Peoples R China

来源：

IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS | 2023年 / 59卷 / 04期

关键词：

Aerodynamics; Disturbance observers; Vehicle dynamics; Uncertainty; Control systems; Convergence; Stability criteria; Fixed-time stability; fuzzy disturbance observer (FDO); homogeneity theory; hypersonic morphing vehicles (HMVs); sliding mode control (SMC); CONVERGENCE TIME; AIRCRAFT; SYSTEMS; DESIGN;

D O I：

10.1109/TAES.2022.3227886

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

This work focuses on the attitude control problem for hypersonic morphing vehicles (HMVs) with uncertainties. A span-morphing HMV model is first established with lumped disturbances. Based on fixed-time technique, a disturbance observer with fuzzy logic system (FLS) is proposed to enhance the robustness by estimating the unmodeled dynamics and external disturbances in fixed settling time. The multivariable fixed-time sliding mode manifold is applied to the transformed control system, which guarantees a direct control input design from attitude command and decent tracking performance. Then, the control system degenerates into an autonomous system, and the closed-loop fixed-time stability is ensured via Lyapunov synthesis and homogeneity theory. Finally, simulation results are presented to demonstrate the effectiveness of the proposed control scheme.

引用

页码：3521 / 3530

页数：10

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