Adaptive Disturbance-Based High-Order Sliding-Mode Control for Hypersonic-Entry Vehicles

作     者：Sagliano, Marco Mooij, Erwin Theil, Stephan 

作者机构：German Aerosp Ctr DLR Nav & Control Dept D-28359 Bremen Germany Delft Univ Technol Astrodynam & Space Miss Dept NL-2629 HS Delft Netherlands 

出 版 物：《JOURNAL OF GUIDANCE CONTROL AND DYNAMICS》 (制导、控制和动力学杂志)

年 卷 期：2017年第40卷第3期

页      面：521-536页

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 0804[工学-仪器科学与技术] 0825[工学-航空宇航科学与技术] 

主　　题：Model Reference Adaptive Control Atmospheric Density Lift Coefficient Aerodynamic Coefficients Flight Path Angle Sharp Edge Flight Experiment Nonlinear Feedback Thermal Protection System Dynamic Pressure German Aerospace Center 

摘      要：In this paper, an adaptive, disturbance-based sliding-mode controller for hypersonic-entry vehicles is proposed. The scheme is based on high-order sliding-mode theory, and is coupled to an extended sliding-mode observer, able to reconstruct online the disturbances. The result is a numerically stable control scheme, able to adapt online to reduce the error in the presence of multiple uncertainties. The transformation of a high-order sliding-mode technique into an adaptive law by using the extended sliding-mode observer is, together with the multi-input/multi-output formulation for hypersonic-entry vehicles, the main contribution of this paper. The robustness is verified with respect to perturbations in terms of initial conditions, atmospheric density variations, as well as mass and aerodynamic uncertainties. Results show that the approach is valid, leading to an accurate disturbance reconstruction, to a better transient, and to good tracking performance, improved of about 50% in terms of altitude and range errors with respect to the corresponding standard sliding-mode-control approach.