Adaptive Backstepping Sliding Mode Fault Tolerant Control for Satellite Attitude under Actuator Faults

3rd International Conference on Aeronautical Materials and Aerospace Engineering

航空航天工程

Huo, Junhai^1 ; Meng, Tao^1 ; Jin, Zhonghe^1

School of Aeronautics and Astronautics, Zhejiang University, Hangzhou

310027, China^1

关键词: Adaptive back-stepping;    Adaptive fault-tolerant control;    Fault tolerant control;    Fault-tolerant capability;    Globally asymptotically stable;    Performance requirements;    Reliability and stability;    Spacecraft attitude control;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/608/1/012040/pdf
DOI  :  10.1088/1757-899X/608/1/012040

学科分类：航空航天科学

来源: IOP

【 摘 要 】

Modern spacecraft missions place stringent performance requirements on the reliability and stability of spacecraft attitude control system. However, during long-term in-orbit mission, actuators may suffer faults. In this paper, we proposed an adaptive fault tolerant control law for attitude control under actuator failures and external disturbances. Firstly, the attitude dynamic model under actuator faults and attitude kinematics are described. Then, in order to solve the attitude control problem under actuator faults and external disturbances, an adaptive backstepping sliding mode fault tolerant control scheme is designed. According to Lyapunov theory, the closed-loop system is proved to be globally asymptotically stable. Finally, the numerical simulation results demonstrate that the proposed adaptive controller can achieve anticipative attitude control performance, fault information estimation and well fault-tolerant capability.