Event-triggered adaptive fuzzy attitude takeover control of spacecraft. Issue 6 (15th March 2021)

• Record Type: Journal Article
• Authors: Ning, Kai; Wu, Baolin; Xu, Chuang
• Is Part Of: Advances in space research. Volume 67:Issue 6(2021)
• Page Start: 1761
• Page End: 1772
• Publication Date: 2021-03-15
• Subjects: Attitude takeover control -- Fuzzy control -- Event-triggered control -- Fault-tolerant control -- Control input saturation -- Attitude tracking control -- Spacecraft; Space sciences -- Periodicals; Astronautics -- Periodicals; Geophysics -- Periodicals; 500.505
• DOI: 10.1016/j.asr.2020.12.027
• Languages: English
• ISSNs: 0273-1177

Abstract

Abstract: The problem of attitude takeover control of spacecraft by using cellular satellites with limited communication, actuator faults and input saturation is investigated. In order to lighten the communication burden of cellular satellites, an event-triggered control strategy is adopted. The filtered attitude information needs to be transmitted only when the defined measurement error reaches the event-triggered threshold in this strategy. Then, to deal with the unknown inertia matrix, actuator faults, external disturbances and the errors caused by event-triggered scheme, fuzzy logic systems is introduced to estimate the uncertainties directly. Combining fuzzy logic control strategy and the event-triggered method, the first event-triggered adaptive fuzzy control law is developed. Then, torque saturation of cellular satellites is further considered in the second control law, where the upper bound of the uncertainties is estimated by fuzzy logic systems. The resulting closed-loop systems under the two control laws are guaranteed to be bounded. Finally, the effectiveness of two proposed control laws is verified by the numerical simulations.