METHOD FOR CONTROLLING SPACE CRAFT ACTION, CONTROL SYSTEM, AND SPACE CRAFT

摘要

PROBLEM TO BE SOLVED: To provide a system and a method for the simultaneous control thrusters of orbital positions of a spacecraft using a single set of accumulated loaded momenta, a method for attaining the simultaneous control by using model prediction control ranging over a regression horizon, and an autonomous control for obtaining accurate orbital holding and momentum unload.SOLUTION: A command 104 to a thruster and a momentum exchange device is obtained so that a spacecraft may unload excessive momenta accumulated and simultaneously reserved in a predetermined region. This process is performed by executing an automatic control system 101 that uses a spacecraft model 112. The optimization of a cost function 116 ranging over a regression horizon (receding horizon) under the condition of restrictions 115 to the attitude of the spacecraft and inputs to the thruster is used to obtain control inputs for simultaneously controlling spacecraft thruster and a spacecraft momentum exchange device, and thereby a suitable control input command 104 is generated.SELECTED DRAWING: Figure 2