Fuzzy Adaptive Fault-Tolerant Output Feedback Attitude-Tracking Control of Rigid Spacecraft

• Published in: IEEE transactions on systems, man, and cybernetics. Systems Vol. 47; no. 8; pp. 1898 - 1908
• Main Authors: Huo, Baoyu, Xia, Yuanqing, Yin, Lijian, Fu, Mengyin
• Format: Journal Article
• Language: English
• Published: New York IEEE 01-08-2017; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Actuator faults; actuator saturation; Actuators; Adaptive control; adaptive fuzzy control; Adaptive systems; Attitude control; attitude tracking; Fault tolerance; Fault tolerant systems; fault-tolerant control (FTC); Faults; Fuzzy control; Fuzzy logic; Fuzzy systems; Materials requirements planning; Output feedback; Rigid-body dynamics; Space vehicles; Spacecraft tracking; Tracking control
• ISSN: 2168-2216; 2168-2232
• DOI: 10.1109/TSMC.2016.2564918

This paper proposes a stable adaptive fuzzy fault-tolerant attitude-tracking controller for a rigid spacecraft in the presence of unavailable velocities, external disturbance, actuator faults, and actuator saturation. Fuzzy logic systems are applied to approximate the unknown nonlinear function vector, and a fuzzy adaptive observer is designed to estimate the unmeasured velocity of the rigid body. By using the backstepping technique, a novel adaptive fuzzy attitude-tracking fault-tolerant control scheme is developed. It has been testified that this control approach guarantees that all signals of the rigid spacecraft are bounded and the tracking error between the system output and the reference signal converges to a small neighborhood of zero. Simulation examples with constant faults and time-variant faults are provided to show the fault-tolerant effectiveness of the control method.