TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Multivariable Feedback Control of a Binary Fractionation Column
(Reglarea multivariabilă a unei coloane de fracţionare binară)
Vol LXII • No. 4B/2010
Marian Popescu
Petroleum-Gas University of Ploiesti, Romania
e-mail: mpopescu@upg-ploiesti.ro

 Keywords   multivariable control, feedback control, decoupling, fractionation column.

 Abstract
This paper addresses a problem regarding multivariable feedback control system for a binary fractionation column. First, a multivariable fractionation process is analyzed from input-output point of view using Simulink. The results of this analysis concluded that the commands of the process influence the compositions on the crossed channels too, so there is a need for a decoupler. Thus, the next step is the design of the decoupler for this process. The system consisting of the process and the decoupler is also analyzed through simulation. Finally, a multivariable control system with monovariable controllers is proposed.

 Rezumat
În această lucrare este studiată problema reglării multivariabile a unei coloane de fracţionare binară. Mai întâi, este analizat un proces de fracţionare multivariabil din punct de vedere intrare-ieşire utilizând Simulink. Rezultatele acestei analize au condus la concluzia că cei doi agenţi de reglare ai procesului influenţează compoziţiile şi pe canalele încrucişate, fiind nevoie în acest caz de un decuplor. Astfel, următorul pas este proiectarea decuplorului asociat acestui proces. Sistemul format din proces şi decuplor a fost de asemenea analizat prin simulare. În final, este propus un sistem de reglare multivariabil cu regulatoare monovariabile.



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