A control system for controlling an operation of a spacecraft. A model predictive controller (MPC) produces a solution for controlling thrusters of the spacecraft. The MPC optimizes a cost function over a finite receding horizon using a model of dynamics of the spacecraft effecting a pose of the spacecraft and a model of dynamics of momentum exchange devices of the spacecraft effecting an orientation of the spacecraft. The optimization is subject to hard and soft constraints on angles of thrusts generated by thrusters. Further, the hard constraints require the angles of thrusts in the solution to fall within a predetermined range defined by the hard constraints. The soft constraints penalize the solution for deviation of the angles of thrusts from nominal angles corresponding to a torque-free thrust passing through the center of the mass of the spacecraft. A thruster controller operates the thrusters according to the solution of the MPC.
SPACECRAFT, AND CONTROL SYSTEM AND METHOD FOR CONTROLLING OPERATION OF SPACECRAFT
RAUMFAHRZEUG UND STEUERUNGSSYSTEM UND VERFAHREN ZUR STEUERUNG DES BETRIEBS VON RAUMFAHRZEUGEN
ENGIN SPATIAL, ET SYSTÈME DE COMMANDE ET PROCÉDÉ DE COMMANDE DE FONCTIONNEMENT DE L'ENGIN SPATIAL
2021-12-22
Patent
Electronic Resource
English
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