Control Allocation of a GEO Satellite for Station-Keeping and Momentum Management by Using Thrusters and Reaction Wheels

This paper presents a control allocation method for simultaneous station-keeping and momentum management maneuvers. The considered satellite model is equipped with internal external actuators to the satellite’s orbit attitude and, concurrently, unload angular stored in reaction wheels. Our allocates achieve objectives. Internal such as wheels generate torque based on conservation of momentum. In this study, two different controllers are utilized wheel speeds. To manage three axes, at least needed. four used ensure case failure wheel. addition, six chemical thrusters, east-west north-south correction maneuvers performed. For serve throughout its service life, fuel optimization required. proposed will enforce constraints that maintain orbital accuracy nadir pointing configuration while minimizing use significantly reducing consumption. combines generally separated objectives through determined by propulsion system. Numerical simulations performed validate method. show using can increase life geostationary satellites.