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DOI: 10.14569/IJACSA.2022.0130434
PDF

Design of a Multiloop Controller for a Nonlinear Process

Author 1: S Anbu
Author 2: M Senthilkumar
Author 3: T S Murugesh

International Journal of Advanced Computer Science and Applications(IJACSA), Volume 13 Issue 4, 2022.

  • Abstract and Keywords
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Abstract: Among the category of nonlinear processes, the Continuous Stirred Tank Reactor (CSTR) is one popular unit that finds application in various verticals of chemical process industries. The process variables within the CSTR are highly interactive; hence developing control strategies become a laborious task as it can be viewed as a Multi Input Multi Output (MIMO) system. Often the CSTR is assumed as a Single Input Single Output (SISO) system and during the development of control strategies or algorithm, the main objective is on maintaining only a single process variable closer to its set point, even though many measured variables form part of it. On the contrary, when compared to a SISO system, the MIMO control includes sustaining different controlled variables at their appropriate set points concurrently; thereby achieving an improved efficiency. The components’ concentration and the temperature inside the CSTR are highly interactive in nature and exhibit reasonably high non-linear steady state behaviour. Both the interaction and non-linear behaviours pose challenges to the overall system stability. A stabilizing Proportional + Integral (PI) controller employing Stability Boundary Locus (SBL) concept is designed for a CSTR which eventually encapsulates both the stability and closed loop performance in its design procedure and analysed through simulation in MATLAB with the results presented.

Keywords: Nonlinear process; interaction; multi input multi output control; closed loop performance; stability

S Anbu, M Senthilkumar and T S Murugesh, “Design of a Multiloop Controller for a Nonlinear Process” International Journal of Advanced Computer Science and Applications(IJACSA), 13(4), 2022. http://dx.doi.org/10.14569/IJACSA.2022.0130434

@article{Anbu2022,
title = {Design of a Multiloop Controller for a Nonlinear Process},
journal = {International Journal of Advanced Computer Science and Applications},
doi = {10.14569/IJACSA.2022.0130434},
url = {http://dx.doi.org/10.14569/IJACSA.2022.0130434},
year = {2022},
publisher = {The Science and Information Organization},
volume = {13},
number = {4},
author = {S Anbu and M Senthilkumar and T S Murugesh}
}



Copyright Statement: This is an open access article licensed under a Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, even commercially as long as the original work is properly cited.

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