Minimum variance benchmark for performance assessment of decentralized controllers

The available minimum variance (MV) benchmarks do not take the controller structure into account and thus can lead to incorrect conclusions regarding the performance of decentralized controllers. In this paper, we present a method for computing a lower bound on the least output variance achievable u...

Full description

Saved in:
Bibliographic Details
Main Authors: Sendjaja, Antonius Yudi, Kariwala, Vinay
Other Authors: School of Chemical and Biomedical Engineering
Format: Article
Language:English
Published: 2013
Subjects:
Online Access:https://hdl.handle.net/10356/100984
http://hdl.handle.net/10220/16710
Tags: Add Tag
No Tags, Be the first to tag this record!
Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-100984
record_format dspace
spelling sg-ntu-dr.10356-1009842020-03-07T11:40:21Z Minimum variance benchmark for performance assessment of decentralized controllers Sendjaja, Antonius Yudi Kariwala, Vinay School of Chemical and Biomedical Engineering DRNTU::Engineering::Chemical engineering The available minimum variance (MV) benchmarks do not take the controller structure into account and thus can lead to incorrect conclusions regarding the performance of decentralized controllers. In this paper, we present a method for computing a lower bound on the least output variance achievable using decentralized controllers, where the nonconvexity of the optimization problem is handled using sums of squares programming. Though tight, the computation of this lower bound requires that the process model be known. As a more practical approach, we derive an MV benchmark for performance assessment of decentralized controllers on a loop by loop basis. The MV benchmark for loop by loop analysis can be estimated from the closed loop operating data with the knowledge of time delays between all the inputs and outputs. The usefulness of the proposed benchmarks is demonstrated using simulation examples. 2013-10-23T05:55:26Z 2019-12-06T20:31:44Z 2013-10-23T05:55:26Z 2019-12-06T20:31:44Z 2012 2012 Journal Article Sendjaja, A. Y., & Kariwala, V. (2012). Minimum variance benchmark for performance assessment of decentralized controllers. Industrial & Engineering Chemistry Research, 51(11), 4288-4298. 0888-5885 https://hdl.handle.net/10356/100984 http://hdl.handle.net/10220/16710 10.1021/ie201361d en Industrial & Engineering Chemistry Research © 2012 American Chemical Society
institution Nanyang Technological University
building NTU Library
country Singapore
collection DR-NTU
language English
topic DRNTU::Engineering::Chemical engineering
spellingShingle DRNTU::Engineering::Chemical engineering
Sendjaja, Antonius Yudi
Kariwala, Vinay
Minimum variance benchmark for performance assessment of decentralized controllers
description The available minimum variance (MV) benchmarks do not take the controller structure into account and thus can lead to incorrect conclusions regarding the performance of decentralized controllers. In this paper, we present a method for computing a lower bound on the least output variance achievable using decentralized controllers, where the nonconvexity of the optimization problem is handled using sums of squares programming. Though tight, the computation of this lower bound requires that the process model be known. As a more practical approach, we derive an MV benchmark for performance assessment of decentralized controllers on a loop by loop basis. The MV benchmark for loop by loop analysis can be estimated from the closed loop operating data with the knowledge of time delays between all the inputs and outputs. The usefulness of the proposed benchmarks is demonstrated using simulation examples.
author2 School of Chemical and Biomedical Engineering
author_facet School of Chemical and Biomedical Engineering
Sendjaja, Antonius Yudi
Kariwala, Vinay
format Article
author Sendjaja, Antonius Yudi
Kariwala, Vinay
author_sort Sendjaja, Antonius Yudi
title Minimum variance benchmark for performance assessment of decentralized controllers
title_short Minimum variance benchmark for performance assessment of decentralized controllers
title_full Minimum variance benchmark for performance assessment of decentralized controllers
title_fullStr Minimum variance benchmark for performance assessment of decentralized controllers
title_full_unstemmed Minimum variance benchmark for performance assessment of decentralized controllers
title_sort minimum variance benchmark for performance assessment of decentralized controllers
publishDate 2013
url https://hdl.handle.net/10356/100984
http://hdl.handle.net/10220/16710
_version_ 1681047468773474304