Attitude Control and Unloading for Spacecraft with Redundant Reaction Wheels under Nonstationary Angular Velocity Requirement / 冗長なRWを搭載した宇宙機の時変の角速度目標に対する 姿勢制御とアンローディング
- Resource Type
- Journal Article
- Authors
- Sayaka Kanata; Takashi Shimomura; Tatsuya Yamase; 下村 卓; 山瀬 達也; 金田 さやか
- Source
- 日本航空宇宙学会論文集 / JOURNAL OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES. 2019, 67(5):143
- Subject
- Attitude Control
LPV Control Theory
Redundant Raction Wheels
Unloading of Reaction Wheels
- Language
- Japanese
- ISSN
- 1344-6460
2432-3691
We applied the LPV (Linear Parameter-Varying) control theory to attitude control for spacecraft. With this method, control stability and control performance can be considered at the same time. This method was applied to attitude tracking problems. In this paper, a method to apply the LPV control theory to the tracking problem of the attitude as well as the angular velocity. We focus on spacecraft with multiple RWs (Reaction Wheels). Using the redundancy, an unloading method for the RWs is also described. Numerical simulations assumed a spacecraft with four RWs are conducted to compare the tracking error by the proposed method and by a Lyapunov-based control.