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Journal of Applied Mathematics
Volume 2012 (2012), Article ID 808327, 14 pages
http://dx.doi.org/10.1155/2012/808327
Research Article

Offset-Free Strategy by Double-Layered Linear Model Predictive Control

Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China

Received 29 March 2012; Revised 27 May 2012; Accepted 28 May 2012

Academic Editor: Xianxia Zhang

Copyright © 2012 Tao Zou. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In the real applications, the model predictive control (MPC) technology is separated into two layers, that is, a layer of conventional dynamic controller, based on which is an added layer of steady-state target calculation. In the literature, conditions for offset-free linear model predictive control are given for combined estimator (for both the artificial disturbance and system state), steady-state target calculation, and dynamic controller. Usually, the offset-free property of the double-layered MPC is obtained under the assumption that the system is asymptotically stable. This paper considers the dynamic stability property of the double-layered MPC.