Control Allocation Based Plantwide Control Structure Design for Heat Exchange Networks

In this work, a novel design methodology based on the control allocation (CA) approach is presented. The CA structure allows to explicitly handle the input constraints (e.g. actuator position limits) as well as the secondary control objectives (e.g. minimization of the control energy). In addition,...

Full description

Saved in:
Bibliographic Details
Published inComputer Aided Chemical Engineering Vol. 44; pp. 607 - 612
Main Authors Luppi, Patricio, Braccia, Lautaro, Marchetti, Pablo A., Zumoffen, David
Format Book Chapter
LanguageEnglish
Published 2018
Subjects
control allocation
heat exchange networks
plantwide control design
heat exchange networks
plantwide control design
control allocation
Online AccessGet full text
ISBN9780444642417
0444642412
ISSN1570-7946
DOI10.1016/B978-0-444-64241-7.50096-3

Cover

More Information
Summary:In this work, a novel design methodology based on the control allocation (CA) approach is presented. The CA structure allows to explicitly handle the input constraints (e.g. actuator position limits) as well as the secondary control objectives (e.g. minimization of the control energy). In addition, it can manage actuator saturations (and faults) without performing a reconfiguration of the control structure. The proposed architecture involves two levels: (i) a high-level decentralized structure implemented with conventional PI controllers and (ii) a CA module based on a weighted least-squares formulation which utilizes an active set method algorithm. The complete procedure only requires a steady-state model of the process for the structure design. Several dynamic simulations demonstrate the performance of the suggested strategy.
ISBN:9780444642417
0444642412
ISSN:1570-7946
DOI:10.1016/B978-0-444-64241-7.50096-3