Practical approaches to low-order anti-windup compensator design: a flight control comparison

Kerr, Murray, Turner, Matthew and Postlethwaite, Ian (2008) Practical approaches to low-order anti-windup compensator design: a flight control comparison. In: 17th IFAC World Congress, 6-11 July 2008, South Korea.

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Official URL: http://dx.doi.org/10.3182/20080706-5-KR-1001.02401

Abstract

This paper considers three different methods for low-order anti-windup (AW) compensator design and compares their application to a realistic flight control problem, where the dominant actuator nonlinearity is aileron rate saturation. The compensator design methods all rigorously enforce at least local exponential stability via absolute stability results, but differ in both the construction of the AW compensator itself and the performance requirements used in the design. In particular, the paper compares a low order AW ``optimal'' design method in which the compensator poles and zeros are chosen by the designer and the accompanying gains synthesised optimally; a new low order method in which the optimisation procedure optimally chooses both the zeros and the gains; and a recently introduced classical design method where loopshaping is used to completely determine the gains and dynamics of the compensator. The methods are compared using a high-order nonlinear model of the lateral dynamics of an experimental aircraft, on which similar compensators have recently been flight tested.

Item Type: Conference or Workshop Item (Paper)
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics and Information Sciences
Depositing User: Sarah Howells
Date Deposited: 26 Oct 2012 15:10
Last Modified: 10 Aug 2015 11:31
URI: http://nrl.northumbria.ac.uk/id/eprint/10066

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