METHOD AND SYSTEM FOR OPTIMIZING TORQUE IN A CMG ARRAY

摘要

A momentum-control system (100) for a spacecraft is disclosed. The momentum-control system (100) comprises an attitude-control system (102). The attitude-control system (102) receives data concerning a desired spacecraft maneuver and determines a torque command to complete the desired spacecraft maneuver (302). A momentum actuator control processor (104) coupled to the attitude-control system (102) receives the torque command. The momentum actuator control processor (1040 calculates a gimbal rate command comprising a range-space gimbal rate required to produce the torque command (304) and a null-space gimbal rate required to maximize the ability to provide torque in the direction of a current torque (312). At least four control-moment gyros (106) are coupled to the momentum control actuator control processor. Each of the control-moment gyros (106) receives and executes the gimbal rate to produce the desired maneuver.