Robust Attitude Control Design for a Hypersonic Vehicle with Multi-Constraints

被引：0
|
作者：
Feng Z.-X. [1 ]
Guo J.-G. [1 ]
Zhou J. [1 ]
机构：
[1] Institute of Precision Guidance and Control, Northwestern Polytechnical University, Xi'an
来源：
Guo, Jian-Guo (guojianguo@nwpu.edu.cn) | 2017年 / China Spaceflight Society卷 / 38期
关键词：
Angle of attack constraint; Barrier function; Disturbance observer; Hypersonic vehicle; Input constraint;
D O I：
10.3873/j.issn.1000-1328.2017.08.008
中图分类号：
学科分类号：
摘要：
A constrained robust attitude control algorithm is addressed for a hypersonic vehicle with angle of attack constraint, input nonlinearities and uncertainties in this paper. First, the angle of attack constraint issue is properly handled by the integral barrier Lyapunov functions (IBLF) method integrating with the dynamic surface control technique. Moreover, the angle of attack is guaranteed in its constrained set while the “explosion of complexity” is properly avoided. Then, to eliminate the effectiveness of the actuator nonlinearities, a novel auxiliary error compensation design is employed based on the compensated tracking error. In addition, the uncertainties are estimated and compensated by utilizing the nonlinear disturbance observer. Finally, the uniform ultimately boundedness of the closed-loop control system is rigorously ensured by the Lyapunov theorems. The numerical simulation results demonstrate the effectiveness of the proposed method. © 2017, Editorial Dept. of JA. All right reserved.
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页码：839 / 846
页数：7
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