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A nonlinear modification for improving dynamic anti-windup compensation

A nonlinear modification for improving dynamic anti-windup compensation
A nonlinear modification for improving dynamic anti-windup compensation

This paper presents a simple modification which can be made to a pre-designed dynamic anti-windup scheme in order to improve its performance. Roughly speaking, the modification enables the dynamic anti-windup compensator to act more like a static anti-windup compensator in certain circumstances. In particular, the modification enables the output of the compensator to decay more quickly than if it were absent, thereby effecting a swifter recovery of linear behaviour. The modification is therefore suitable for – and indeed motivated by – applications where the original anti-windup compensator contains slow poles, resulting in a potentially lengthy recovery of linear behaviour. The paper describes in detail the modification and presents conditions under which it is able to preserve stability.

Anti-windup, Saturation, Sector-bounds
0947-3580
44-52
Turner, Matthew C.
6befa01e-0045-4806-9c91-a107c53acba0
Kerr, Murray
76b8a9fa-3b7a-433d-90c8-61a3570f3475
Turner, Matthew C.
6befa01e-0045-4806-9c91-a107c53acba0
Kerr, Murray
76b8a9fa-3b7a-433d-90c8-61a3570f3475

Turner, Matthew C. and Kerr, Murray (2018) A nonlinear modification for improving dynamic anti-windup compensation. European Journal of Control, 41, 44-52. (doi:10.1016/j.ejcon.2018.02.001).

Record type: Article

Abstract

This paper presents a simple modification which can be made to a pre-designed dynamic anti-windup scheme in order to improve its performance. Roughly speaking, the modification enables the dynamic anti-windup compensator to act more like a static anti-windup compensator in certain circumstances. In particular, the modification enables the output of the compensator to decay more quickly than if it were absent, thereby effecting a swifter recovery of linear behaviour. The modification is therefore suitable for – and indeed motivated by – applications where the original anti-windup compensator contains slow poles, resulting in a potentially lengthy recovery of linear behaviour. The paper describes in detail the modification and presents conditions under which it is able to preserve stability.

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More information

Accepted/In Press date: 5 February 2018
e-pub ahead of print date: 10 February 2018
Published date: 1 May 2018
Keywords: Anti-windup, Saturation, Sector-bounds

Identifiers

Local EPrints ID: 439037
URI: http://eprints.soton.ac.uk/id/eprint/439037
ISSN: 0947-3580
PURE UUID: c4725a8a-96d0-4f81-b336-d2d9723f51ee

Catalogue record

Date deposited: 01 Apr 2020 16:36
Last modified: 25 Nov 2021 21:51

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Contributors

Author: Matthew C. Turner
Author: Murray Kerr

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