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Type: Artigo de evento
Title: Time Optimal Control Of Distillation Columns: A Mixed Idp-sqp Approach
Author: Schroder A.
Mendes M.J.
Abstract: The optimization of the transition time of product changing processes in distillation columns is a Time Optimal Control (TOC) problem. This problem can be solved using a robust but slow Iterative Dynamic Programming (IDP) algorithm or a faster but not robust Sequential Quadratic Programming (SQP) algorithm. The performance of both algorithms is highly influenced by the order of the process model used. A mixed algorithm is proposed as an alternative way to overcome the slowness of the IDP and the poor robustness of the SQP algorithms for this type of problems. This mixed algorithm combines a simplified version of the IDP algorithm, that is use to start the optimization problem, leading to a better convergence region where the SQP algorithm can successfully be started. © 1999 Elsevier Science Ltd.
Rights: fechado
Identifier DOI: 10.1016/S0098-1354(99)80121-5
Date Issue: 1999
Appears in Collections:Unicamp - Artigos e Outros Documentos

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