DocumentCode :
3475161
Title :
Two formulations of exponentially weighted enhanced LQ controllers
Author :
Pierre, D.A. ; Trudnowski, D.J.
Author_Institution :
Dept. of Electr. Eng., Montana State Univ., Bozeman, MT, USA
fYear :
1991
fDate :
11-13 Dec 1991
Firstpage :
2313
Abstract :
Properties of a class of multi-input multi-output digital controllers are examined. The controllers incorporate three features: (1) optimal gains associated with known exogenous inputs; (2) penalties imposed both on squares of first backward differences in control actions and on control actions squared: and (3) exponential weighting to insure bounds on closed-loop eigenvalues. Two versions of exponential weighting are treated. Results are given both for the finite-horizon versions of the problems and for the infinite-horizon versions of the problems. The results include expressions for optimal feedback gains and for optimal preview gains. For the infinite-horizon versions of the problems, relationships are derived between the optimal closed-loop eigenvalues and the eigenvalues associated with the preview gains. Two examples are given to illustrate properties of these conditions
Keywords :
closed loop systems; digital control; eigenvalues and eigenfunctions; feedback; multivariable control systems; optimal control; MIMO digital controllers; closed-loop eigenvalues; exponentially weighted enhanced LQ controllers; finite-horizon versions; infinite-horizon versions; optimal control; optimal feedback gains; optimal preview gains; Bandwidth; Books; Digital control; Eigenvalues and eigenfunctions; Feedback; Laboratories; Optimal control; Time measurement; Weight control; Weight measurement;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 1991., Proceedings of the 30th IEEE Conference on
Conference_Location :
Brighton
Print_ISBN :
0-7803-0450-0
Type :
conf
DOI :
10.1109/CDC.1991.261578
Filename :
261578
Link To Document :
بازگشت