Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol Production

Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol Production

Control of ethylene glycol (EG) production involves highly interacting parameters which disrupts and degrades controllers’ performance. In this work, a validated model is used to attain and maintain the optimum EG flowrate and reactor temperature. Effective Relative Gain Analysis (ERGA) method is ap...

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Main Authors: M Syafiq Sulaiman, Fakhrony Sholahudin Rohman, Norashid Aziz
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2021-06-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/11585
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spelling doaj-c276ab7ac8cc4dbd9453435a0667bc702021-06-15T20:21:42ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162021-06-018610.3303/CET2186159Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol ProductionM Syafiq SulaimanFakhrony Sholahudin RohmanNorashid AzizControl of ethylene glycol (EG) production involves highly interacting parameters which disrupts and degrades controllers’ performance. In this work, a validated model is used to attain and maintain the optimum EG flowrate and reactor temperature. Effective Relative Gain Analysis (ERGA) method is applied in determining the pairing of each manipulated (MV) and controlled variables (CV). The best pairing is identified as MV1-CV1/MV2-CV2. Sensitivity analysis are performed to identify the stability and controllability of the closed loop systems. The conditioned number (C) and Morari Resilience Index (MRI) calculated are 1.47 and 0.679, respectively. Decoupling method within Simulink Matlab environment is used to reduce/eliminate loop interactions for increased quality of Proportional-Integral (PI) controllers in controlling EG production. The results show that the decoupled PI controller (with proper/tight control boundary) shows significant improvement in control performance. Keywords: Ethylene Glycol (EG), Multiple-Input-Multiple-Output (MIMO), Decoupler, Control, Effective Relative Gain Analysis (https://www.cetjournal.it/index.php/cet/article/view/11585
collection DOAJ
language English
format Article
sources DOAJ
author M Syafiq Sulaiman
Fakhrony Sholahudin Rohman
Norashid Aziz
spellingShingle M Syafiq Sulaiman
Fakhrony Sholahudin Rohman
Norashid Aziz
Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol Production
Chemical Engineering Transactions
author_facet M Syafiq Sulaiman
Fakhrony Sholahudin Rohman
Norashid Aziz
author_sort M Syafiq Sulaiman
title Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol Production
title_short Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol Production
title_full Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol Production
title_fullStr Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol Production
title_full_unstemmed Decoupled Pid Controllers for Tracking Optimum set Point in Multiple-input-multiple-output (mimo) System of Ethylene Glycol Production
title_sort decoupled pid controllers for tracking optimum set point in multiple-input-multiple-output (mimo) system of ethylene glycol production
publisher AIDIC Servizi S.r.l.
series Chemical Engineering Transactions
issn 2283-9216
publishDate 2021-06-01
description Control of ethylene glycol (EG) production involves highly interacting parameters which disrupts and degrades controllers’ performance. In this work, a validated model is used to attain and maintain the optimum EG flowrate and reactor temperature. Effective Relative Gain Analysis (ERGA) method is applied in determining the pairing of each manipulated (MV) and controlled variables (CV). The best pairing is identified as MV1-CV1/MV2-CV2. Sensitivity analysis are performed to identify the stability and controllability of the closed loop systems. The conditioned number (C) and Morari Resilience Index (MRI) calculated are 1.47 and 0.679, respectively. Decoupling method within Simulink Matlab environment is used to reduce/eliminate loop interactions for increased quality of Proportional-Integral (PI) controllers in controlling EG production. The results show that the decoupled PI controller (with proper/tight control boundary) shows significant improvement in control performance. Keywords: Ethylene Glycol (EG), Multiple-Input-Multiple-Output (MIMO), Decoupler, Control, Effective Relative Gain Analysis (
url https://www.cetjournal.it/index.php/cet/article/view/11585
work_keys_str_mv AT msyafiqsulaiman decoupledpidcontrollersfortrackingoptimumsetpointinmultipleinputmultipleoutputmimosystemofethyleneglycolproduction
AT fakhronysholahudinrohman decoupledpidcontrollersfortrackingoptimumsetpointinmultipleinputmultipleoutputmimosystemofethyleneglycolproduction
AT norashidaziz decoupledpidcontrollersfortrackingoptimumsetpointinmultipleinputmultipleoutputmimosystemofethyleneglycolproduction
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