A Super-Twisting Fault-Tolerant Control Based on Dual-Quaternion Formalism for Spacecraft Rendezvous

Abstract:

This paper addresses the design of a sliding mode fault-tolerant control scheme for a particular class of actuator faults, for Rendezvous space missions with a passive target. The technique is based on a Super-Twisting controller, scheduled by a fault estimator. The core element of the proposed design technique is that it is based on the Dual-Quaternion formalism that enables to take into account the coupling between relative position and attitude motions. It is proved that the control law converges to the sliding surface in finite time. Stability on it is too proved by means of the Lyapunov theory. Finally, simulations results from a high-fidelity simulator that considers solar arrays flexible modes, propellant sloshing, and the most dimensioning space disturbances (i.e. gravity gradient, magnetic field, solar pressure, and aerodynamic drag), demonstrate the potential of the proposed solution.

Año de publicación:

2022

Keywords:

Fuente:

google