An improved chattering-free sliding mode control with finite time convergence for reentry vehicle

被引：0
|
作者：
Shen Chong [1 ]
Sheng Yongzhi [1 ]
Zeng Xiangyuan [1 ]
Liu Xiangdong [1 ]
机构：
[1] BIT, Sch Automat, Beijing 100081, Peoples R China
来源：
2016 IEEE CHINESE GUIDANCE, NAVIGATION AND CONTROL CONFERENCE (CGNCC) | 2016年
基金：
中国国家自然科学基金;
关键词：
Attitude Control; Time-varying Sliding Mode Control; Chattering Free; High-order Sliding Mode Observe; ORDER;
D O I：
暂无
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A nonlinear robust flight control strategy is proposed to solve the robust attitude control problem for the reentry vehicle. Firstly, a time-varying sliding surface with finite time convergence and the corresponding chattering-free sliding mode control are designed respectively. The time-varying function can guarantee global robustness, and the chattering phenomena can be eliminated by using the low pass filter(LPF). Then, a high-order sliding mode observer is adopted to estimates the system disturbances and the attitude rate. Thus, an observer based control scheme is achieved. Finally, some simulations are shown to illustrate the effectiveness of the proposed strategy as well as the system robustness.
引用
收藏
页码：69 / 74
页数：6
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