리액션휠 기반 고기동 위성 자세제어 기법 연구 Attitude Control for Agile Spacecraft Installed with Reaction Wheels

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In these days, demand for agile spacecraft is gradually increasing, due to the fact that agile spacecraft can improve mission capability. In this paper, an attitude control logic based on reaction wheels that can enhance agility of spacecraft is proposed. Three methods are suggested, and all three or part of them can be integrated to the existing attitude control system. First, a feedforward/feedback controller is introduced, and its pros and cons are provided, compared to the conventional feedback controller. Second, an attitude command generation method that fully utilizes torque/momentum capacities of reaction wheels is proposed. Third, a torque (current) control mode for internal wheel control is introduced. Numerical results verify that the settling time can be significantly reduced by employing the feedforward/feedback control method, especially for large angle maneuver.
Publisher
한국항공우주학회
Issue Date
2018-11
Language
Korean
Article Type
Article
Citation

한국항공우주학회지, v.46, no.11, pp.934 - 943

ISSN
1225-1348
DOI
10.5139/JKSAS.2018.46.11.934
URI
http://hdl.handle.net/10203/246976
Appears in Collection
AE-Journal Papers(저널논문)
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