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Inverted decoupling 2DoF internal model control for mimo processes

Sutikno, Juwari P. and Azizah, Z. and Renanto, Handogo and Riza Aris, Hikmadiyar and Anwaruddin, Hisyam (2019) Inverted decoupling 2DoF internal model control for mimo processes. International Journal of Technology, 10 (3). pp. 502-511. ISSN 2086-9614

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Abstract

In general, the multiple-input-multiple-output (MIMO) system is the main method of process control in industry. However, the interaction between variables in the process is a challenge when designing controllers for the system. Strong interaction worsens system performance. Inverted decoupling plays an important role in reducing interaction in the process. Internal model control (IMC) is the controller used in this research. A one degree of freedom (1DoF) IMC controller is only able to provide a good response to set-point tracking, and has a slow response to disturbance rejection. Therefore, a controller that has a good response to set-point tracking and disturbance rejection is a two degrees of freedom (2DoF) IMC. The tuning method uses maximum peak gain margin (Mp-GM) stability criteria based on the uncertainty model. In this study, a reduction in interaction was realized by the addition of inverted decoupling to the 2DoF IMC control scheme. The Wardle & Wood and Wood & Berry column distillation models are given as illustrative examples to demonstrate the performance of the inverted decoupling 2DoF IMC control scheme. A comparison is made of the IAE values of 1DoF IMC, 2DoF IMC, decoupling 2DoF IMC, and inverted decoupling 2DoF IMC, with inverted decoupling 2DoF IMC showing the lowest IAE value.

Item Type: Article
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Interaction; Inverted decoupling; MIMO system; Mp-GM tuning; 2DoF IMC
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
T Technology > TP Chemical technology
T Technology > TS Manufactures
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 09 Dec 2019 02:02
Last Modified: 09 Dec 2019 02:02
URI: http://umpir.ump.edu.my/id/eprint/26281
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