Título Optimal control analysis and Practical NMPC applied to refrigeration systems
Autores BEJARANO PELLICER, GUILLERMO, Ortega, M. G. , Normey-Rico, J. E. , Rubio, F. R.
Publicación externa No
Medio ISA Trans
Alcance Article
Naturaleza Científica
Cuartil JCR 1
Cuartil SJR 1
Impacto JCR 5.468
Impacto SJR 1.147
Web https://www.scopus.com/inward/record.uri?eid=2-s2.0-85089443447&doi=10.1016%2fj.isatra.2020.07.041&partnerID=40&md5=1a78d05e6e33d303c00f0af2743952f3
Fecha de publicacion 01/12/2020
ISI 000598662400008
Scopus Id 2-s2.0-85089443447
DOI 10.1016/j.isatra.2020.07.041
Abstract This work is focused on optimal control of mechanical compression refrigeration systems. A reduced order state-space model based on the moving boundary approach is proposed for the canonical cycle, which eases the controller design. The optimal cycle (that satisfying the cooling demand while maximizing efficiency) is defined by three variables, but only two inputs are available, therefore the controllability of the proposed model is studied. It is shown through optimization simulations how optimal cycles for a range of the cooling demand turn out not to be achieved by keeping the degree of superheating to a minimum. The Practical NMPC and a well-known feedback-plus-feedforward strategy from the literature are compared in simulation, both showing trouble in reaching the optimal cycle, which agrees with the controllability study. (C) 2020 ISA. Published by Elsevier Ltd. All rights reserved.
Palabras clave Refrigeration system; Process control; Global optimization; Controllability study; Model predictive control
Miembros de la Universidad Loyola

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