Combining with the backstepping technique, a robust fault-tolerant control (FTC) scheme is proposed for the satellite attitude system. Because the actuator fault and external disturbance are unknown, an auxiliary system is constructed firstly. Then, by means of the projection function, the adaptive fault observer is presented to tackle the actuator fault. Meanwhile, the negative effect of external disturbance is compensated by the adaptive estimation. In view of Lyapunov analysis, a robust FTC law is developed to guarantee the desired tracking properties. Numerical simulations elucidate the efficiency of the presented controller.
Backstepping-based Adaptive Fault-Tolerant Control Design for Satellite Attitude System
2020-09-01
765420 byte
Conference paper
Electronic Resource
English
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