Model predictive tracking control for a linear system under time‐varying input constraints. (8th March 2012)

• Record Type: Journal Article
• Authors: Wada, N.; Tomosugi, H.; Saeki, M.
• Is Part Of: International journal of robust and nonlinear control. Volume 23:Number 9(2013)
• Page Start: 945
• Page End: 964
• Publication Date: 2012-03-08
• Subjects: Automatic control -- Periodicals; Control theory -- Periodicals; Nonlinear systems -- Periodicals; 629.836
• DOI: 10.1002/rnc.2806
• Languages: English
• ISSNs: 1049-8923

Abstract

<abstract abstract-type="main" id="rnc2806-abs-0001"> <title>SUMMARY</title> <p id="rnc2806-para-0001">In this paper, we propose a tracking control law for a linear dynamical system under time‐varying input constraints. The proposed control law consists of a dual‐mode model predictive control (MPC) law and a target recalculation mechanism. As the terminal controller of the dual‐mode MPC, we propose a saturation‐level‐dependent gain‐scheduled feedback control law that ensures closed‐loop stability against arbitrary change of the position limit of the actuators. We also present conditions that guarantee feasibility and stability of the control algorithm under time‐varying input constraints. The control algorithm is reduced to an online optimization problem under linear matrix inequality constraints. Copyright © 2012 John Wiley &amp; Sons, Ltd.</p> </abstract>