A general hybrid semi-parametric process control framework

• Tipo: Artigo em Revista Científica Internacional
• Data: 2012

Autores

Moritz von Stosch (Autor) FEUP; Rui Oliveira (Autor) Outra; Joana Peres (Autor) FEUP; Sebastião Feyo de Azevedo (Autor) FEUP

Revista

Título: Journal of Process Control

Vol. 22 Nº 7

Páginas: 1171-1181

ISSN: 0959-1524

Editora: Elsevier

Indexação

ISI Web of Knowledge - 6 Citações

ISI Web of Science

Scopus - 12 Citações

INSPEC

Classificação Científica

FOS: Ciências da engenharia e tecnologias > Engenharia química

Projetos Associados

PEst-C/EQB/UI0511/2011 - PROJECTO ESTRATÉGICO - UI 511 - 2011-2012

Outras Informações

ID Authenticus: P-002-75C

DOI: 10.1016/j.jprocont.2012.05.004

Abstract (EN): A general hybrid semi-parametric process control framework is proposed in this study. The motivation was the integration of different levels of knowledge systems into a general hybrid semi-parametric control structure, of which the general linear controller or the PID controller are, for instance, particular cases. Several hybrid semi-parametric control structure variants and tuning methods are benchmarked in relation to a simulated bioprocess control problem, namely closed-loop control of the biomass concentration through manipulation of the substrate feeding rate, coupled with the closed-loop control of the dissolved oxygen concentration through the stirring velocity. The results demonstrate that (i) due to the hybrid approach the control loop can be closed without any additional identification experiments; (ii) the incorporation of different types of knowledge can enhance the controller performance, when compared to structures without a priori knowledge; (iii) knowledge incorporation seems to facilitate the tuning of the controller; and (iv) the control action can be analyzed in relation to structural information incorporated into the hybrid controller.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 11