Active fault-tolerant control approach design for rigid spacecraft with multiple actuator faults

• DOI: 10.1177/0959651818782847
• Publication Date: 2018-06-28T10:33:02Z
• Authors: Zhifeng Gao; Peng Cheng; Moshu Qian; Guoping Jiang; Jinxing Lin
• Keywords: Observer (physics)

In this study, the active fault-tolerant control problem is investigated for a rigid spacecraft in presence of inertia uncertainty, external disturbance, multiple actuator faults and saturation. The attitude system model fault are first given. A sliding mode–based detection observer radial basis function neural networks–based estimation designed to detect time occurred estimate amplitude unknown fault, respectively. On that basis, an scheme proposed accommodate effects faults, it guarantees state trajectory systems without saturation converges neighborhood origin finite time. Another further constraint case; ensures all closed-loop signals convergence. Finally, simulation results given illustrate effectiveness approach.