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Anticipatory anti-windup: An alternative construction

Anticipatory anti-windup: An alternative construction
Anticipatory anti-windup: An alternative construction

Anticipatory anti-windup compensation involves activation of the anti-windup compensator before the physical saturation limits on the control signals are reached; the anti-windup compensator is activated in anticipation of actuator saturation occurring. Existing studies, which have used a pseudo-LPV representation for compensator synthesis, have proposed convex but somewhat complicated and opaque synthesis routines. This paper offers an alternative method of synthesising anticipatory anti-windup compensators, involving the exploitation of a 'non-square' sector condition associated with a combination of deadzone nonlinearities. This method leads to an anticipatory compensator synthesis routine which is close to that associated with standard immediately activated anti-windup compensators. A numerical example and comments on the use of anticipatory anti-windup are also given.

Anti-windup, nonlinear systems
2966-2971
Institute of Electrical and Electronics Engineers Inc.
Turner, Matthew C.
6befa01e-0045-4806-9c91-a107c53acba0
Sofrony, Jorge
20f54d8e-0d5f-4a8a-be1e-61f4052f30ff
Herrmann, Guido
b8e0df38-66f8-44c8-8e68-abcedd470ae3
Turner, Matthew C.
6befa01e-0045-4806-9c91-a107c53acba0
Sofrony, Jorge
20f54d8e-0d5f-4a8a-be1e-61f4052f30ff
Herrmann, Guido
b8e0df38-66f8-44c8-8e68-abcedd470ae3

Turner, Matthew C., Sofrony, Jorge and Herrmann, Guido (2014) Anticipatory anti-windup: An alternative construction. In 2014 American Control Conference, ACC 2014. Institute of Electrical and Electronics Engineers Inc. pp. 2966-2971 . (doi:10.1109/ACC.2014.6859031).

Record type: Conference or Workshop Item (Paper)

Abstract

Anticipatory anti-windup compensation involves activation of the anti-windup compensator before the physical saturation limits on the control signals are reached; the anti-windup compensator is activated in anticipation of actuator saturation occurring. Existing studies, which have used a pseudo-LPV representation for compensator synthesis, have proposed convex but somewhat complicated and opaque synthesis routines. This paper offers an alternative method of synthesising anticipatory anti-windup compensators, involving the exploitation of a 'non-square' sector condition associated with a combination of deadzone nonlinearities. This method leads to an anticipatory compensator synthesis routine which is close to that associated with standard immediately activated anti-windup compensators. A numerical example and comments on the use of anticipatory anti-windup are also given.

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More information

Published date: July 2014
Venue - Dates: 2014 American Control Conference, ACC 2014, , Portland, OR, United States, 2014-06-04 - 2014-06-06
Keywords: Anti-windup, nonlinear systems

Identifiers

Local EPrints ID: 441463
URI: http://eprints.soton.ac.uk/id/eprint/441463
PURE UUID: ab156d3e-0a77-4f62-8a40-334e7a7b3c6c

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Date deposited: 12 Jun 2020 16:40
Last modified: 18 Jan 2024 19:11

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Contributors

Author: Matthew C. Turner
Author: Jorge Sofrony
Author: Guido Herrmann

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