Coprime factor based anti-windup synthesis for parameter-dependent systems

Prempain, Emmanuel, Turner, Matthew and Postlethwaite, Ian (2009) Coprime factor based anti-windup synthesis for parameter-dependent systems. Systems & Control Letters, 58 (12). pp. 810-817. ISSN 0167-6911

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Official URL: http://dx.doi.org/10.1016/j.sysconle.2009.09.002

Abstract

This paper presents a novel anti-windup compensator synthesis for linear parameter-varying (LPV) systems that have linear fractional transformation (LFT) representations. The LPV anti-windup synthesis is based on a right coprime factor description of the LPV plant to be controlled. It is shown that the anti-windup compensator synthesis reduces to solving a robust gain state-feedback control problem for the LPV/LFT system subject to input saturations. The synthesis takes advantage of unstructured multipliers (that is, multipliers that do not commute with the parameter structure) and exploits a detailed description of the parameter trajectory polytope. The anti-windup compensator is given in an explicit LPV/LFT form, sharing with the plant the same order and same parameter structure.

Item Type: Article
Uncontrolled Keywords: Gain-scheduled control, LPV/LFT systems, coprime factorizations, L2L2 state-feedback synthesis, anti-windup synthesis
Subjects: H600 Electronic and Electrical Engineering
H900 Others in Engineering
Department: Faculties > Engineering and Environment > Mathematics and Information Sciences
Depositing User: Sarah Howells
Date Deposited: 17 Oct 2012 14:27
Last Modified: 10 Aug 2015 11:25
URI: http://nrl.northumbria.ac.uk/id/eprint/9735

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