Title :
Design of infinite horizon predictive LQ controller
Author :
Fikar, M. ; Engell, S. ; Dostal, P.
Author_Institution :
Dept. of Process Control, CMTF STU, Bratislava, Slovakia
Abstract :
A singlevariable controller is developed in the predictive control framework based upon minimization of the LQ criterion with infinite output and control horizons. The infinite version of the predictive cost function results in better stability properties of the controller and still enables to incorporate contraints into the control design. The constrained LQ controller (CLQ) consists of two parts: time-invariant nominal LQ controller and time-variant part given by Youla-Kucera parametrization of all stabilizing controllers that takes care of constraints.
Keywords :
constraint theory; control system synthesis; infinite horizon; linear quadratic control; minimisation; predictive control; stability; time-varying systems; CLQ; LQ criterion; Youla-Kucera parametrization; constrained LQ controller; control horizons; infinite horizon predictive LQ controller design; infinite output; linear quadratic control; minimization; predictive cost function; single variable controller; stability properties; stabilizing controllers; time-invariant nominal LQ controller; time-variant part; Closed loop systems; Cost function; Mathematical model; Polynomials; Predictive control; Standards; Discrete time; Optimal control; Predictive control;
Conference_Titel :
Control Conference (ECC), 1997 European
Conference_Location :
Brussels
Print_ISBN :
978-3-9524269-0-6
