Dynamic model predictive control

Details Dynamic model predictive control Dynamic model predictive control

2007-12-04

2010-11-02

DeCady, Albert (Department: 2121)

Data processing: generic control systems or specific application

Generic control system, apparatus or process

Optimization or adaptive control

Reexamination Certificate

active

07826909

ABSTRACT:
A method of dynamic model predictive control is presented in which both steady state optimization and dynamic moves calculation of the manipulated variables are determined together as part of one optimization solution (211). The method combines steady state optimization and dynamic move calculation such that the steady state optimal targets are determined consistent with the dynamic moves and the resulting dynamic response of the process so that the controlled variables do not violate their low/high limits in both steady state and dynamically. The method utilizes what is described as high limit dynamic violation variables and low limit dynamic violation variables corresponding to each of the controlled variables. The method offers a unique capability of mixing a part dynamic optimization with a part steady state optimization as it relates to application of a large model predictive control under varying situations, in particular at or near constraints violations that can be done dynamically in real time for improved and robust control performance without having to change the controller tuning.

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Muske et al.; “Model Predictive Control with Linear Models”; Feb. 1993; vol. 39, No. 2, AIChE Journal; pp. 262-287.

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