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Nonlinear predictive control of a solar plant based on reduced complexity models

Authors:Igreja José, INESC-ID/ISEL, Portugal
Lemos João, INESC-ID/IST, Portugal
Neves-Silva Rui, Univ Nova Lisboa, Portugal
Topic:2.3 Non-Linear Control Systems
Session:Nonlinear Observers and Output Feedback
Keywords: Process control, Predictive Control, Nonlinear Systems, Nonlinearity measure, Reduced Complexity Models, Solar plants.

Abstract

This paper is concerned with predictive controller design for the outlet oil temperature in distributed collector solar fields. The design method proposed combines feedback linearization cascade with an outer loop consisting of a predictive controller incorporating constraints. A relevant feature is the use of a reduced complexity model, selected according to a nonlinearity measure.