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An anti-windup scheme for an adaptive hamilt vibration controller: Development and simulations

An anti-windup scheme for an adaptive hamilt vibration controller: Development and simulations
An anti-windup scheme for an adaptive hamilt vibration controller: Development and simulations

This paper presents a simple nonlinear anti-windup strategy for use in conjunction with a novel type of adaptive robust controller. In the absence of saturation constraints, the adaptive robust controller can provide highly effective disturbance rejection, but this ability is gradually lost as the saturation level is increased. In order to improve the performance of the controller during saturated periods, it is complemented with both a linear anti-windup compensator and a nonlinear modification of this compensator. Simulation results show that both anti-windup compensators are able to assist the adaptive robust controller in preserving vibration reduction levels when saturation is present, but that the nonlinear compensator is able to offer a higher level of vibration attenuation during periods of severe control signal saturation.

5306-5311
Institute of Electrical and Electronics Engineers Inc.
Turner, Matthew C.
6befa01e-0045-4806-9c91-a107c53acba0
O'Brien, Richard T.
25ee17bb-4e0c-488a-83ac-a67870fc6441
Turner, Matthew C.
6befa01e-0045-4806-9c91-a107c53acba0
O'Brien, Richard T.
25ee17bb-4e0c-488a-83ac-a67870fc6441

Turner, Matthew C. and O'Brien, Richard T. (2015) An anti-windup scheme for an adaptive hamilt vibration controller: Development and simulations. In ACC 2015 - 2015 American Control Conference. vol. 2015-July, Institute of Electrical and Electronics Engineers Inc. pp. 5306-5311 . (doi:10.1109/ACC.2015.7172168).

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents a simple nonlinear anti-windup strategy for use in conjunction with a novel type of adaptive robust controller. In the absence of saturation constraints, the adaptive robust controller can provide highly effective disturbance rejection, but this ability is gradually lost as the saturation level is increased. In order to improve the performance of the controller during saturated periods, it is complemented with both a linear anti-windup compensator and a nonlinear modification of this compensator. Simulation results show that both anti-windup compensators are able to assist the adaptive robust controller in preserving vibration reduction levels when saturation is present, but that the nonlinear compensator is able to offer a higher level of vibration attenuation during periods of severe control signal saturation.

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More information

Published date: 28 July 2015
Venue - Dates: 2015 American Control Conference, ACC 2015, United States, 2015-06-30 - 2015-07-02

Identifiers

Local EPrints ID: 439221
URI: http://eprints.soton.ac.uk/id/eprint/439221
PURE UUID: 081cf2ad-e34a-4c9e-b57b-d9acb25d73bd

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Date deposited: 07 Apr 2020 16:30
Last modified: 09 Sep 2020 16:33

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Contributors

Author: Matthew C. Turner
Author: Richard T. O'Brien

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