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Title: Anti-windup for a class of partially linearisable non-linear systems with application to wave energy converter control
Authors: Lekka, Angeliki
Turner, Matthew C.
Menon, P. P.
First Published: 24-Aug-2016
Publisher: Institution of Engineering and Technology (IET)
Citation: IET Control Theory and Applications 2016
Abstract: This paper studies the anti-windup (AW) problem for a certain class of non-linear systems, in which the plant is globally quadratically stable and also partially linearisable by a suitably chosen non-linear feedback control law. Three types of AW compensators are proposed for this type of non-linear system: the first one is a non-linear extension of the popular linear internal model control (IMC) scheme; the second one has a similar structure to the IMC AW compensator yet is of reduced order and has entirely linear dynamics; and the third one is again a linear AW compensator, but can endow the closed-loop system with some sub-optimal performance properties. All three AW compensators are able to provide global exponential stability guarantees for the aforementioned class of systems. This work was inspired by a wave energy application whose dynamics fall into the class of systems studied in this study. Simulation results show the efficacy of the three AW compensators when applied to the wave energy application.
DOI Link: 10.1049/iet-cta.2016.0296
ISSN: 1751-8644
eISSN: 1751-8652
Version: Post-print
Status: Peer-reviewed
Type: Journal Article
Rights: Creative Commons “Attribution Non-Commercial No Derivatives” licence CC BY-NC-ND, further details of which can be found via the following link: Archived with reference to SHERPA/RoMEO and publisher website.
Appears in Collections:Reports, Dept. of Engineering

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