A dynamic compensator for active rejection of persistent disturbances in flexible space structures is designed on the principle of the H(infinity)-optimization of the sensitivity transfer function matrix. A general state space solution is formulated to the multiinput multioutput H(infinity)-optimal control problem, allowing the use of the H(infinity)-optimal synthesis algorithm for the state-space models of space structures that result from model order reduction. Disturbances encountered in flexible space structures, such as shuttle docking, are investigated using the high-mode and the reduced-order models of a cantilevered two-bay truss, demonstrating the applicability of the H(infinity)-optimal approach.
Active rejection of persistent disturbances in flexible space structures
AIAA Guidance, Navigation and Control Conference ; 1990 ; Portland, OR, United States
1990-01-01
Conference paper
No indication
English
An active disturbances rejection controller for hysteretic systems
Automotive engineering | 2009
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