Reduced-order output feedback controllers for discrete-time systems Trinh, Hieu, Nahavandi, Saeid and Fernando, T. 2001, Reduced-order output feedback controllers for discrete-time systems, Control and intelligent systems, vol. 29, no. 2, pp. 40-47. Attached Files Name Description MIMEType Size Downloads Title Reduced-order output feedback controllers for discrete-time systems Author(s) Trinh, Hieu orcid.org/0000-0003-3438-9969 Nahavandi, Saeid orcid.org/0000-0002-0360-5270 Fernando, T. Journal name Control and intelligent systems Volume number 29 Issue number 2 Start page 40 End page 47 Publisher ACTA Press Place of publication Anaheim, Calif. Publication date 2001 ISSN 1480-1752 1925-5810 Keyword(s) Discrete-time systems output feedback controllers reduced-order controllers Summary This article considers the stabilization by output feedback controllers for discrete-time systems. The controller can place all of the closed-loop poles within a specified disk D(-α, 1/β), centred at (-α,0) with radius 1/β, where | - α|  + 1/β < 1. The design method involves the decomposition of the system into two portions. The first portion comprises of all of the poles that are lying outside of the specified disk. A reduced-order model is constructed for this portion. The second portion comprises of all of the remaining poles of the system and is characterized by an H∞-norm bound. The controller design is then accomplished by using H∞-control theory. It is shown that, subject to the solvability of an algebraic Riccati equation, output feedback controllers can be systematically derived. The order of the controller is low, and can be as low as the number of the open-loop poles that are lying outside of the specified disk. A step-by-step design algorithm is provided. Numerical examples are given to illustrate the attractiveness of the design method. Language eng Field of Research 091302 Automation and Control Engineering HERDC Research category C1 Refereed article in a scholarly journal Persistent URL http://hdl.handle.net/10536/DRO/DU:30001382 Document type: Journal Article Collections: Faculty of Science, Engineering and Built Environment School of Engineering and Technology   Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Sat, 06 Mar 2021, 20:09:13 EST Fri, 13 Jun 2014, 21:05:34 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 1017 Abstract Views, 0 File Downloads  -  Detailed Statistics Created: Mon, 07 Jul 2008, 07:55:23 EST

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