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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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, Physics and Electrical Engineering
Depositing User:	Sarah Howells
Date Deposited:	17 Oct 2012 14:27
Last Modified:	13 Oct 2019 00:30
URI:	http://nrl.northumbria.ac.uk/id/eprint/9735

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