The need to explore outer and deep space and make it more beneficial for mankind is emphasized in the space industry. But such exploration missions demand intensive attitude control even under a harsh and challenging environment. Due to these external interruptions, the actuators installed at the spacecraft may suffer degradation in its performance with time and may cause partial or complete mission failure. This paper presents a fixed-time robust, yet simple, passive fault-tolerant control for a class of rigid spacecraft with partial loss of actuator effectiveness, external disturbance, and inertial uncertainties. A quaternion presents the spacecraft's attitude dynamics. The error trajectories of angular velocity and attitude are made to converge rapidly to a smaller region around the equilibrium in a fixed time. The trajectories then asymptotically converge to equilibrium. Simulation results endorse the effectiveness of the presented robust fixed-time passive fault-tolerant controller.
Simple Robust Fixed-Time Fault-Tolerant Attitude Control for a class of Rigid Spacecrafts
2020-10-20
438816 byte
Conference paper
Electronic Resource
English
Distributed Adaptive Attitude Consensus Control for Multiple Rigid Spacecrafts
British Library Conference Proceedings | 2022
|Distributed Adaptive Attitude Consensus Control for Multiple Rigid Spacecrafts
Springer Verlag | 2021
|