1. Combined Control for Quick Maneuver of Elastic Satellite.
- Author
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Rao Weidong and Xu Lijia
- Subjects
- *
ARTIFICIAL satellites , *COMPUTER simulation , *FEEDFORWARD control systems , *UNCERTAINTY (Information theory) , *ERROR analysis in mathematics , *DYNAMICAL systems - Abstract
A combined control method which consists of feedback control and feedforward control was presented. The feedback loop eliminates rigid body's attitude error around target attitude, while feedforward control prevents from elastic vibration. For feedback loop, the traditional PD control was adopted. For feedforward control, the suboptimal sinusoidal control was adopted. Suboptimal sinusoidal control consists of series of sinusoids exciting little vibration of elastic modes from low order to high order. Numerical simulation was carried out to verify the method. The results show that, by using the combined control, the maneuver task can be fulfilled effectively in the presence of dynamical uncertainties and disturbance. [ABSTRACT FROM AUTHOR] more...
- Published
- 2013
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