Please use this identifier to cite or link to this item: https://scidar.kg.ac.rs/handle/123456789/8623
Title: Design of an H<inf>∞</inf> PI controller with given relative stability and its application to the CSTR problem
Authors: Dubonjic, Ljubisa
Filipovic, Vojislav
Nedić, Novak
Đorđević V.
Journal: Hemijska Industrija
Issue Date: 1-Jan-2018
Abstract: © 2018, Association of Chemists and Chemical Engineers of Serbia. All rights reserved. H∞ control theory has achieved a very high level, which is not followed by appropriate applications in industry. Some reasons are: synthesis of H∞ controllers is complex and based on the numerical Nevanlinna-Pick procedure, high order of controllers (higher than the order of the process) and sensitivity to deviation of controller coefficients (fragile controller). On the other hand, PI (PID) controllers are still dominant in industry, which places the problem of design of fixed structure controllers at the forefront. The mentioned problem is very difficult. This paper proposes a simple interactive procedure for design of H? PI controllers with the presence of constraints (given the relative stability) based on D-decomposition. The catalogue of responses to references, suppression of disturbances and minimum of H∞ criteria of control is created. Selection of controllers, based on the catalogue, is left to the user. The application of H∞ PI controllers to a CSTR (continuous stirred-tank reactor) is demonstrated.
URI: https://scidar.kg.ac.rs/handle/123456789/8623
Type: journal article
DOI: 10.2298/HEMIND170529007D
ISSN: 0367598X
SCOPUS: 85048489543
Appears in Collections:Faculty of Mechanical and Civil Engineering, Kraljevo

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