ATTITUDE CONTROLLING METHOD FOR SATELLITE

摘要

PROBLEM TO BE SOLVED: To provide an attitude controlling method for satellite in which an unstable thruster is controlled by a bias torque control signal having a separate frequency separated from a thruster control signal of a feed-back control system and stable attitude control eliminating external disturbance such as an offset of the center of gravity. SOLUTION: A control signal for a stable-side thruster 4 and a control signal for an unstable side thruster 5 are separated by independently applying a bias torque control signal having a bias torque signal modulated in a pulse width under an unstable frequency dynamically against an unstable-side thruster 5 where dynamic stability is deteriorated in a specified frequency range based on a flexible structure. Control by a control signal of a feedback control system in a frequency range where the flexible structure is made unstable is performed mainly by the stable-side thruster 4 and then stable attitude control for a satellite having calcelled external disturbance such as an offset of the center of gravity is carried out. COPYRIGHT: (C)2003,JPO