TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Dynamic Investigation, Identification and Decoupling of a Multivariable 2X2 Temperature Process
(Investigarea Dinamicii, Identificarea şi Decuplarea unui Proces Multivariabil de Temperatură 2X2)
Vol LXVI • No. 2/2014
Alin-Constantin Băieşu, Alina-Simona Băieşu
Honeywell România, Str. George Constantinescu 3, Bucureşti
e-mail: alin.baiesu@honeywell.com
Universitatea Petrol-Gaze din Ploiesti, Bd. Bucuresti 39, Ploiesti
e-mail: agutu@upg-ploiesti.ro

 Keywords   multivariable process, dynamic investigation, process identification, 2X2 decoupler design

 Abstract
Most of the real systems are multivariable, having in addition to the input-output direct interactions, unwanted input-output cross interactions. The objective of this paper is to find a simple and feasible mathematical model of a heat transfer multivariable 2X2 process using the results of the process dynamic investigation. A simple and accurate model is useful in the design of a 2X2 structure decoupler connected in series with the process, which aims to cancel the multivariable process natural cross interactions in order to obtain a process having only direct interactions, which can easily be controlled.

 Rezumat
Marea majoritate a sistemelor sunt multivariabile, caracterizate prin prezenţa canalelor încrucişate de interacţiune intrare-ieşire, în plus faţă de cele directe. Obiectivul acestei lucrări este găsirea unui model matematic simplu şi fezabil pentru un proces de transfer termic multivariabil cu strucutură 2X2, pe baza rezultatelor obţinute în urma analizei dinamicii procesului. Acest model este necesar în etapa de proiectare a unui decuplor având aceeaşi structură cu procesul, conectat prin înseriere în faţa acestuia, al cărui scop este diminuarea sau chiar anularea interacţiunilor naturale încrucişate din proces şi obţinerea unui sistem ce are numai interacţiuni directe, care să poată fi uşor reglat.



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