Yan, Kun (Nanjing University of Aeronautics and Astronautics), Wu, Qingxian (NUAA), Yang, Chenguang (University of the West of England), Chen, Mou (Nanjing University Of Aeronautics And Astronautics)

Backstepping-Based Adaptive Fault-Tolerant Control Design for Satellite Attitude System

Scheduled for presentation during the Regular Session "Autonomy II" (WeB1), Wednesday, September 2, 2020, 15:00−15:20, Macedonia Hall

2020 International Conference on Unmanned Aircraft Systems (ICUAS), September 1-4, 2020 (Postponed from June 9-12, 2020), Athens, Greece

This information is tentative and subject to change. Compiled on April 26, 2024

Abstract

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.