计算机工程与应用2012,Vol.48Issue(19):220-224,5.DOI:10.3778/j.issn.1002-8331.2012.19.050
反步自适应滑模变结构的小卫星姿态鲁棒容错控制
Robust adaptive sliding-mode fault-tolerant attitude control via backstepping for small satellite
摘要
Abstract
In order to solve the question of attitude tracking problem of a small satellite with external disturbances, input saturation and actuator failures, this paper proposes an adaptive backstepping fault-tolerant control law. The method combines backstepping and adaptive sliding mode control schemes, such that the bound of disturbances are not required. An adaptive scheme is designed to estimate the minimum of actuators' fault and the maximum of control action produced by the actuator that is out of control, and thus the fault detection and isolation algorithm is avoided. Lyapunov stability analysis shows that the closed-loop system is proved to be asymptotically stable. The simulation results show that the method can achieve expected tracking performance, great fault-tolerant capability and robustness.关键词
小卫星/姿态跟踪/反步/滑模/容错控制/鲁棒控制Key words
small satellite/ attitude tracking/ backstepping/ sliding mode/ fault-tolerant control/ robust control分类
信息技术与安全科学引用本文复制引用
赵学民..反步自适应滑模变结构的小卫星姿态鲁棒容错控制[J].计算机工程与应用,2012,48(19):220-224,5.基金项目
国家自然科学基金(No.41171341) (No.41171341)
河南省科技厅科技攻关项目(No.102102210453). (No.102102210453)