The design of an optimal low-order dynamic controller with a-shift (alpha-shift) for attitude control is attempted for a flexible satellite which is a solar electric propulsion spacecraft. The satellite consists of a central rigid body to which two flexible solar panels are attached. The design of a third-order dynamic controller is accomplished using modified linear quadratic Gaussian theory. The improvement in the satellite attitude response with a small uniform a-shift is demonstrated by numerical simulation. A novel concept of block-shift is introduced to move different sets of closed-loop eigenvalues by different amounts. The advantages of this type of block-shift in the design of the controller are shown by simulation. The robustness of the controller with respect to parameter variations is shown to be ample.
Robust low order dynamic controller for flexible spacecraft
Robuste dynamische Regler niedriger Ordnung für flexible Raumfahrzeuge
IEE Proceedings, Part D (Control Theory and Applications) ; 138 , 5 ; 460-468
1991
9 Seiten, 23 Quellen
Article (Journal)
English
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