Modeling and flat control law for a fine pointing system based on semi active magnetic bearings
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In this paper aspects of non linear systems and flat control are studied for a specific application of a satellite fine pointing breadboard based on semi active magnetic bearings actuators. Authors propose a complete 6 degrees of freedom mechanical model which describes the system dynamics. A completely non linear and unstable system is obtained leading to implement non linear control laws. A combination of flat control, which ensures trajectory tracking and path planning, with a linear controller which rejects uncertainties and additive noise is implemented and simulated. Simulations proves the efficiency of control law, leading to a system which is stable and reaching the high precision performances desired for the application.
CitacióMahout, V.; Prats, X.; Mignot, J. Modeling and flat control law for a fine pointing system based on semi active magnetic bearings. A: IEEE International Conference on Control Applications. "IEEE international conference on control aplications". Glasgow: 2002, p. 156-161.