Discrete-time integral sliding-mode fault-tolerant controller for satellite control system

被引：1
作者：
Duan, Wen-Jie [1 ,2 ]
Wang, Da-Yi [1 ,2 ]
Liu, Cheng-Rui [1 ,2 ]
机构：
[1] Beijing Institute of Control Engineering, Beijing
[2] Science and Technology on Space Intelligent Control Laboratory, Beijing
来源：
Kongzhi Lilun Yu Yingyong/Control Theory and Applications | 2015年 / 32卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Efficiency factor; Fault-tolerant control; Satellite; Sliding-mode; Uncertainties;
D O I：
10.7641/CTA.2015.40662
中图分类号：
学科分类号：
摘要：
Satellite control systems are sample-data control systems, to which the method for designing the discretetime fault-tolerant controller with uncertainties is of great significance. A discrete-time integral sliding-mode fault-tolerant control approach is proposed for regulating the attitude of a satellite with reaction wheel faults. The major portion of this approach includes the controller design and the control allocation. A discrete-time integral sliding-mode controller is thus developed for discrete-time MIMO linear time-invariant (LTI) systems, in which the matched and unmatched uncertainties are considered for closed-loop stability, and the final boundaries of system states are determined. In determining the control allocation based on the attainable moment space (AMS), the facets of the AMS is rearranged for reducing the calculation. This approach is applied to the simulation of a five-wheel satellite with multi-faults, inaccurate efficiency factors, matched and unmatched uncertainties. Simulation and analysis results are almost in coincidence with each other. ©, 2015, South China University of Technology. All right reserved.
引用
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页码：133 / 141
页数：8
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