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Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor

Plant model is one of the important aspects in the design and implementation of Model Predictive Controller (MPC). The performance of MPC depends on the accuracy and quality of plant model. However, dynamic behaviour of a plant may change with time. Hence, plant model that are used for the design wi...

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محفوظ في:
التفاصيل البيبلوغرافية
المؤلف الرئيسي: Azman, Nader Ashar Khan
التنسيق: Final Year Project
اللغة:English
منشور في: IRC 2015
الموضوعات:
TP Chemical technology
الوصول للمادة أونلاين:http://utpedia.utp.edu.my/15820/1/Dissertation-Nader-15013.pdf
http://utpedia.utp.edu.my/15820/
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id my-utp-utpedia.15820
record_format eprints
spelling my-utp-utpedia.158202017-01-25T09:35:19Z http://utpedia.utp.edu.my/15820/ Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor Azman, Nader Ashar Khan TP Chemical technology Plant model is one of the important aspects in the design and implementation of Model Predictive Controller (MPC). The performance of MPC depends on the accuracy and quality of plant model. However, dynamic behaviour of a plant may change with time. Hence, plant model that are used for the design will no longer represent the plant current state after some time. In this dissertation, the effect of model plant mismatch on MPC performance will be shown by the researcher. During the conduct of this research, the researcher has developed a non-linear CSTR model by using SIMULINK. Manipulated variable and controlled variable for the CSTR model has been set by the researcher. Besides that, the researcher developed 3 different linear transfer function model using 3 different ranges. By using this 3 different transfer function model, the researcher designed 3 different MPC. The researcher has tested the plant model with 2 different tests. First, to understand the dynamic model of this CSTR, the researcher has done an open loop test to this CSTR model by adding few percentages of increment in step change to the plant input. The changes in controlled variable inside the reactor is then measured and analyzed. For the second test, the researcher done a closed loop test to measure the performance of MPC between the accurate plant models and mismatch plant models. This test is done by using MPC with plant model to control to a limit which is out of its range to represent the mismatch plant model. In the open loop test, when step change is added to the plant input, all output changes from its set point which clearly shows the non-linearity behaviour of the plant. For the MPC performance test, when mismatch is added, the controller becomes less stable and it took a longer time to reach the steady state and the new set point. IRC 2015-05 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/15820/1/Dissertation-Nader-15013.pdf Azman, Nader Ashar Khan (2015) Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor. IRC, Universiti Teknologi PETRONAS. (Unpublished)
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Electronic and Digitized Intellectual Asset
url_provider http://utpedia.utp.edu.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Azman, Nader Ashar Khan
Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor
description Plant model is one of the important aspects in the design and implementation of Model Predictive Controller (MPC). The performance of MPC depends on the accuracy and quality of plant model. However, dynamic behaviour of a plant may change with time. Hence, plant model that are used for the design will no longer represent the plant current state after some time. In this dissertation, the effect of model plant mismatch on MPC performance will be shown by the researcher. During the conduct of this research, the researcher has developed a non-linear CSTR model by using SIMULINK. Manipulated variable and controlled variable for the CSTR model has been set by the researcher. Besides that, the researcher developed 3 different linear transfer function model using 3 different ranges. By using this 3 different transfer function model, the researcher designed 3 different MPC. The researcher has tested the plant model with 2 different tests. First, to understand the dynamic model of this CSTR, the researcher has done an open loop test to this CSTR model by adding few percentages of increment in step change to the plant input. The changes in controlled variable inside the reactor is then measured and analyzed. For the second test, the researcher done a closed loop test to measure the performance of MPC between the accurate plant models and mismatch plant models. This test is done by using MPC with plant model to control to a limit which is out of its range to represent the mismatch plant model. In the open loop test, when step change is added to the plant input, all output changes from its set point which clearly shows the non-linearity behaviour of the plant. For the MPC performance test, when mismatch is added, the controller becomes less stable and it took a longer time to reach the steady state and the new set point.
format Final Year Project
author Azman, Nader Ashar Khan
author_facet Azman, Nader Ashar Khan
author_sort Azman, Nader Ashar Khan
title Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor
title_short Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor
title_full Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor
title_fullStr Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor
title_full_unstemmed Effect of Model Plant Mismatch in Model Predictive Controller Performance: Continuous Stirred Tank Reactor
title_sort effect of model plant mismatch in model predictive controller performance: continuous stirred tank reactor
publisher IRC
publishDate 2015
url http://utpedia.utp.edu.my/15820/1/Dissertation-Nader-15013.pdf
http://utpedia.utp.edu.my/15820/
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score 13.250246

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