Computer Engineering and Applications ›› 2018, Vol. 54 ›› Issue (16): 260-265.

Attitude tracking fault-tolerant control for spacecraft with unknown time-varying inertia

GAO Zhi, CHEN Wei, SHAO Xing

1. College of Information Engineering, Yancheng Institute of Technology, Yancheng, Jiangsu 224051, China
• Online:2018-08-15 Published:2018-08-09

未知时变惯量航天器自适应姿态跟踪容错控制

1. 盐城工学院 信息工程学院，江苏 盐城 224051

Abstract: This paper investigates an adaptive attitude tracking fault-tolerant control problem for non-rigid spacecraft with unknown time-varying inertia, actuator fading and external disturbance. Based on nonlinear robust control, adaptive approach, fault-tolerant control theory and parameter estimation method, a novel robust adaptive attitude tracking fault-tolerant control law is proposed. The proposed controller overcomes the influence of actuator fault, inertia uncertainty and external disturbance. And, it can regulate the attitude and angular velocity to the desired states and guarantee that the ultimately uniform and bounded stability of the error system is achieved. Simulation results validate the effectiveness of the presented control algorithm and demonstrate the better performance of designed control approach compared with other method.
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