1. Attitude control for the rigid spacecraft with the improved extended state observer
- Author
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Qi Liu, Yuteng Cao, Qiuling Zhao, Guiqin He, and Fang Liu
- Subjects
0209 industrial biotechnology ,General Computer Science ,Spacecraft ,business.industry ,Computer science ,Applied Mathematics ,02 engineering and technology ,01 natural sciences ,010305 fluids & plasmas ,Attitude control ,020901 industrial engineering & automation ,Control theory ,Modeling and Simulation ,Physics::Space Physics ,0103 physical sciences ,Astrophysics::Earth and Planetary Astrophysics ,State observer ,business ,Engineering (miscellaneous) - Abstract
In this article, a three-axis attitude manoeuvre spacecraft consisting of a central rigid body and a rotating solar array is studied. The rotating solar array is considered a disturbance to the spacecraft. In the design of the controller, the coupled terms and the rotating solar array are considered a disturbance. The improved extended state observer is proposed by combing the sliding mode observer with the originally extended state observer to estimate the disturbance. The sliding mode control method is adopted to adjust the attitude of the spacecraft. Numerical simulations are presented to demonstrate the outstanding performance of the present observer.
- Published
- 2023