Title :
On the role of disturbance estimation in H∞ control systems
Author :
Kawatani, R. ; Fuji, T. ; Kimura, H.
Author_Institution :
Dept. of Mech. Eng. for Comput.-Controlled Machinery, Osaka Univ., Japan
Abstract :
In this paper, based on the analysis of H∞ controllers, an interesting and crucial observation concerning the structure of H∞ control systems is obtained. Due to this observation, closed-loop H∞ control systems can be clearly described as a disturbance estimator which is used to diminish the effect of exogenous input on the output. A clear representation of the feedforward-feedback structure of the H∞ controller is established
Keywords :
closed loop systems; control system analysis; optimal control; closed loop systems; control system analysis; disturbance estimation; feedforward-feedback; observation; optimal control; Automatic control; Bismuth; Centralized control; Control systems; H infinity control; Machinery; Measurement standards; Mechanical engineering; Riccati equations; State-space methods;
Conference_Titel :
Decision and Control, 1990., Proceedings of the 29th IEEE Conference on
Conference_Location :
Honolulu, HI
DOI :
10.1109/CDC.1990.203576
