<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The paper addresses the problem of the robust output feedback PI controller design for complex large-scale stable systems with a state decentralized control structure. A decentralized control design procedure is proposed for static output feedback control which is based on solving robust control design problems of subsystems' size. The presented approach is based <italic>on the Generalized Gershgorin Theorem</italic> and uses the so-called equivalent subsystems approach to consider the interactions in the local robust controller design. The resulting decentralized control scheme has been successfully tested on two examples: a linearized model of three interconnected boiler-turbine subsystems and a linear model of four cooperating DC motors where the problem is to design four local PI controllers for a large scale system which will guarantee robust stability and performance of the closed-loop uncertain system.</p></abstract>

The paper addresses the problem of the robust output feedback PI controller design for complex large-scale stable systems with a state decentralized control structure. A decentralized control design procedure is proposed for static output feedback control which is based on solving robust control design problems of subsystems' size. The presented approach is based on the Generalized Gershgorin Theorem and uses the so-called equivalent subsystems approach to consider the interactions in the local robust controller design. The resulting decentralized control scheme has been successfully tested on two examples: a linearized model of three interconnected boiler-turbine subsystems and a linear model of four cooperating DC motors where the problem is to design four local PI controllers for a large scale system which will guarantee robust stability and performance of the closed-loop uncertain system.

Robust Decentralized Controller Design: Subsystem Approach

Institute of Control and Industrial Informatics, Slovak University of Technology Faculty of Electrical Engineering and Information Technology, Bratislava, Slovakia

Institute of Computer Science and Matematics, Slovak University of Technology Faculty of Electrical Engineering and Information Technology, Bratislava, Slovakia

Journal of Electrical Engineering

{"article-title":"Robust Decentralized Controller Design: Subsystem Approach"}

The paper addresses the problem of the robust output feedback PI controller design for complex large-scale stable systems with a state decentralized control...

Robust Decentralized Controller Design: Subsystem Approach

Published Online: Feb 22, 2012

Page range: 28 - 34

DOI: https://doi.org/10.2478/v10187-012-0004-z

Keywords
decentralized control, robust stability, bilinear matrix inequalities

This content is open access.

Robust Decentralized Controller Design: Subsystem Approach

Published Online: Feb 22, 2012

Page range: 28 - 34

DOI: https://doi.org/10.2478/v10187-012-0004-z

Keywordsdecentralized control, robust stability, bilinear matrix inequalities

This content is open access.

Keywords
decentralized control, robust stability, bilinear matrix inequalities