Title :
Issues in the application of H∞ control to large space structures
Author :
King, James A. ; Irwin, Dennis
Author_Institution :
Dept. of Electr. & Comput. Eng., Ohio Univ., Athens, OH, USA
Abstract :
An H∞ controller is designed for a subsystem of a large, flexible space structure. Issues concerning the incorporation of robustness and performance criteria as frequency-dependent weights are addressed. Simulation results and closed-loop frequency responses are included. In addition, an analysis of the singular-value frequency response of the controller raises questions regarding the robustness of H∞ designs when faced with uncertainty in plant modal frequencies
Keywords :
aerospace control; closed loop systems; control system synthesis; frequency response; optimal control; stability; H∞ control; closed-loop frequency responses; frequency-dependent weights; large space structures; optimal control; performance criteria; plant modal frequencies; robustness; singular-value frequency response; stability; uncertainty; Control systems; Equations; Frequency dependence; Frequency response; H infinity control; Optimal control; Robustness; Size control; State-space methods; Transfer functions;
Conference_Titel :
System Theory, 1990., Twenty-Second Southeastern Symposium on
Conference_Location :
Cookeville, TN
Print_ISBN :
0-8186-2038-2
DOI :
10.1109/SSST.1990.138135
