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PIM-based Digital Controller for System with Process Delay

Discretization of a controller in a process plant is a norm through a variety of means. A typical approach of industry involves converting an analog time controller to discrete time controller using PID adjustment method. Delayed system however, suffers degradation in its transient performance at ce...

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Bibliographic Details
Main Author: Norhisam, Muhammad Zuhair
Format: Final Year Project
Language:English
Published: IRC 2014
Subjects:
TK Electrical engineering. Electronics Nuclear engineering
Online Access:http://utpedia.utp.edu.my/14826/1/Muhammad_Zuhair_Dissertation.pdf
http://utpedia.utp.edu.my/14826/
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spelling my-utp-utpedia.148262017-01-25T09:36:30Z http://utpedia.utp.edu.my/14826/ PIM-based Digital Controller for System with Process Delay Norhisam, Muhammad Zuhair TK Electrical engineering. Electronics Nuclear engineering Discretization of a controller in a process plant is a norm through a variety of means. A typical approach of industry involves converting an analog time controller to discrete time controller using PID adjustment method. Delayed system however, suffers degradation in its transient performance at certain level and form including but not limited to; higher overshoot and slower settling time. As such, process’ tuning is always mandatory as a means of compensation. Plant Input Mapping (PIM) based method aims to reduce the performance’s degradation with minimal tuning involved. In this project, an epsilon operator is used and preferred compared to z operator. Both the plant and the controller will be discretized using Step Invariant Model (SIM) and Matched Pole Zero (MPZ) technique respectively. Experiment has been done to compare the performance of discrete PID and PIM method. First order dead time (FODT) transfer function of the plant is calculated using statistical modelling method and thus, the values for continuous time (CT) PID is calculated using the open loop tuning method. Simulation of all process are generated through Simulink’s model. It is observed that the performance of PIM could rival the DT PID’s however, there is some limitation in PIM technique that makes the technique undesirable. Further modification of technique is done and proven to be significantly better than DT PID and closely simulates its continuous system counterpart. IRC 2014-09 Final Year Project NonPeerReviewed application/pdf en http://utpedia.utp.edu.my/14826/1/Muhammad_Zuhair_Dissertation.pdf Norhisam, Muhammad Zuhair (2014) PIM-based Digital Controller for System with Process Delay. IRC, Universiti Teknologi PETRONAS. (Submitted)
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 TK Electrical engineering. Electronics Nuclear engineering
spellingShingle TK Electrical engineering. Electronics Nuclear engineering
Norhisam, Muhammad Zuhair
PIM-based Digital Controller for System with Process Delay
description Discretization of a controller in a process plant is a norm through a variety of means. A typical approach of industry involves converting an analog time controller to discrete time controller using PID adjustment method. Delayed system however, suffers degradation in its transient performance at certain level and form including but not limited to; higher overshoot and slower settling time. As such, process’ tuning is always mandatory as a means of compensation. Plant Input Mapping (PIM) based method aims to reduce the performance’s degradation with minimal tuning involved. In this project, an epsilon operator is used and preferred compared to z operator. Both the plant and the controller will be discretized using Step Invariant Model (SIM) and Matched Pole Zero (MPZ) technique respectively. Experiment has been done to compare the performance of discrete PID and PIM method. First order dead time (FODT) transfer function of the plant is calculated using statistical modelling method and thus, the values for continuous time (CT) PID is calculated using the open loop tuning method. Simulation of all process are generated through Simulink’s model. It is observed that the performance of PIM could rival the DT PID’s however, there is some limitation in PIM technique that makes the technique undesirable. Further modification of technique is done and proven to be significantly better than DT PID and closely simulates its continuous system counterpart.
format Final Year Project
author Norhisam, Muhammad Zuhair
author_facet Norhisam, Muhammad Zuhair
author_sort Norhisam, Muhammad Zuhair
title PIM-based Digital Controller for System with Process Delay
title_short PIM-based Digital Controller for System with Process Delay
title_full PIM-based Digital Controller for System with Process Delay
title_fullStr PIM-based Digital Controller for System with Process Delay
title_full_unstemmed PIM-based Digital Controller for System with Process Delay
title_sort pim-based digital controller for system with process delay
publisher IRC
publishDate 2014
url http://utpedia.utp.edu.my/14826/1/Muhammad_Zuhair_Dissertation.pdf
http://utpedia.utp.edu.my/14826/
_version_ 1739832051111034880
score 13.211869

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