Strategies for enhancing geometric nonlinear control of an industrial evaporator system

Kam, Kiew M., Tade, Moses O., Rangaiah, Gade P., & Tian, Yu-Chu (2001) Strategies for enhancing geometric nonlinear control of an industrial evaporator system. Industrial and Engineering Chemistry Research, 40(2), pp. 656-667.

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Two strategies, adaptive input-output internal model control (AdIOIMC) and augmented input-output internal model control (AuIOIMC), for enhancing the nonlinear control of an industrial multistage evaporator system are proposed. Each strategy consists of a nonlinear state feedback control law, designed by the input-output linearization technique, to linearize feedback and stabilize the open-loop unstable evaporator and the internal model control (IMC) structure for the feedback-linearized system. The combination of the nonlinear state feedback control law and the IMC structure is referred to as input-output internal model control (IOIMC). The AuIOIMC is composed of an IOIMC structure and an additional loop through which the model error is fed back and added to the input of the IMC. For AdIOIMC, the model error is fed to an adaptation loop that adjusts the model parameter within the IMC structure of IOIMC. The advantages of the proposed AdIOIMC and AuIOIMC strategies on the industrial evaporator system were evaluated through simulation studies. The results show that both strategies provide improved regulatory control performance when compared to the MIMO GLC.

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ID Code: 1531
Item Type: Journal Article
Refereed: Yes
Additional Information: This article is freely available from the American Chemical Society website 12 months after the publication date. See links to publisher website in this record.
DOI: 10.1021/ie000205g
ISSN: 0888-5885
Divisions: Past > QUT Faculties & Divisions > Faculty of Science and Technology
Copyright Owner: Copyright 2001 American Chemical Society
Deposited On: 09 Jun 2005 00:00
Last Modified: 19 Dec 2014 01:08

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