Robust Attitude Control and Compensation under Actuator Practical Restrictions
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- MENG Tao
- School of Aeronautics and Astronautics, Zhejiang University
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- MATUNAGA Saburo
- Department of Mechanical and Aerospace Engineering, Tokyo Institute of Technology
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説明
Rapid attitude maneuvering and high pointing accuracy are two keywords for advanced missions of next generation satellites. The single-gimbal control moment gyro (CMG) is regarded as an ideal torque generator for rapid maneuvering due to its torque amplification capability. However, singularities, unknown friction effects and its real steering resolution constrain its practical performance. This paper presents a robust attitude control approach based on variable-structure theory with a time-varying sliding surface. This approach guarantees minimum angular path maneuvering, global stability and asymptotic convergence in the presence of CMG practical restrictions, inertial uncertainties and various disturbances. By taking CMG gimbal friction as unmodeled disturbances, the approach is independent of the gimbal friction model. Furthermore, a magnetic compensation method with gimbal rate feedback is proposed to reduce torque-generated error caused by the CMG steering mechanism including singularity avoidance logic and steering resolution limits. This method also attenuates the frequent switching operation of the CMG during the stabilization phase. Numerical simulations demonstrate the validity and feasibility of the proposed approach. It is also shown that the magnetic compensation method does not only improve the tracking accuracy effectively, but also reduces the total power consumption, which is very desirable in practice.
収録刊行物
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- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES
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TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES 54 (185/186), 198-204, 2011
一般社団法人 日本航空宇宙学会
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詳細情報 詳細情報について
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- CRID
- 1390282679056894208
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- NII論文ID
- 10030274653
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- NII書誌ID
- AA0086707X
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- ISSN
- 21894205
- 05493811
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- NDL書誌ID
- 023372577
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 使用不可