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Type-1 and Type-2 effective Takagi-Sugeno fuzzy models for decentralized control of multi-input-multi-output processes
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore.
Department of Biomedical Engineering, National University of Singapore, Singapore. (Center of Apllied Autonomous Sensor System)ORCID iD: 0000-0002-0334-2554
School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore.
Department of Automation, Shanghai Jiao Tong University, Shanghai, PR China.
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2017 (English)In: Journal of Process Control, ISSN 0959-1524, E-ISSN 1873-2771, Vol. 52, p. 26-44Article in journal (Refereed) Published
Abstract [en]

tEffective model is a novel tool for decentralized controller design to handle the interconnected inter-actions in a multi-input-multi-output (MIMO) process. In this paper, Type-1 and Type-2 effectiveTakagi-Sugeno fuzzy models (ETSM) are investigated. By means of the loop pairing criterion, simple cal-culations are given to build Type-1/Type-2 ETSMs which are used to describe a group of non-interactingequivalent single-input-single-output (SISO) systems to represent an MIMO process, consequently thedecentralized controller design can be converted to multiple independent single-loop controller designs,and enjoy the well-developed linear control algorithms. The main contributions of this paper are: i)Compared to the existing T-S fuzzy model based decentralized control methods using extra terms tocharacterize interactions, ETSM is a simple feasible alternative; ii) Compared to the existing effectivemodel methods using linear transfer functions, ETSM can be carried out without requiring exact mathe-matical process functions, and lays a basis to develop robust controllers since fuzzy system is powerful tohandle uncertainties; iii) Type-1 and Type-2 ETSMs are presented under a unified framework to provideobjective comparisons. A nonlinear MIMO process is used to demonstrate the ETSMs’ superiority overthe effective transfer function (ETF) counterparts as well as the evident advantage of Type-2 ETSMs interms of robustness. A multi-evaporator refrigeration system is employed to validate the practicabilityof the proposed methods.

Place, publisher, year, edition, pages
Elsevier, 2017. Vol. 52, p. 26-44
Keyword [en]
Interactions, Loop pairing, effective Takagi-Sugeno (T-S) fuzzy model, Type-2 fuzzy system, Decentralized control
National Category
Control Engineering
Research subject
Automatic Control
Identifiers
URN: urn:nbn:se:oru:diva-64478DOI: 10.1016/j.jprocont.2017.01.004ISI: 000399849400004Scopus ID: 2-s2.0-85012973939OAI: oai:DiVA.org:oru-64478DiVA: diva2:1177022
Note

Funding Agencies:

National Research of Singapore 

School of Electrical & Electronic Engineering, Nanyang Technological University 

Available from: 2018-01-24 Created: 2018-01-24 Last updated: 2018-02-05Bibliographically approved

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