Robust attitude control and simulation of a Stewart spacecraft

The attitude control and simulation of a Stewart spacecraft using robust approach is studied in this paper. Firstly, the configuration of the Stewart platform is illustrated, which is composed of six voice-coil actuators. The Stewart spacecraft is mechanically separated, and the vibrations from the platform can be isolated. Then, the robust approach is implemented to design the attitude controller for the spacecraft, and the stability of the attitude control system is analyzed and proved using the small gain theorem. Finally, simulation results are illustrated to demonstrate the attitude performances of the proposed approach.