Scherer, Carsten, Bernussou, Jacques, Arzelier, Denis and Postlethwaite, Ian (2006) Robust control applications. In: 5th IFAC SYmposium on Robust Control Design, 5-7 July 2006, Toulouse, France.
Full text not available from this repository. (Request a copy)Abstract
This plenary presentation will demonstrate the growing importance of robust control theory by describing its application to some non-trivial practical control problems. The talk will begin with a description of the design and flight test of a new batch of Hȡ controllers for the Bell 205 helicopter. At the heart of each controller is an Hȡ loop-shaping controller, augmented with a hand-tuned reference filter to improve tracking performance and to reduce a perceived phase lag which pilots had complained of previously. Flight testing revealed that, with such an architecture, it was relatively easy to get Level 1 handling qualities ratings in low aggression manoeuvres. Further fine tuning resulted in Level 1 qualities for high aggression manoeuvres and one controller performed to Level 1 standard in all manoeuvres tested. The second half of the talk will consider how robust control techniques can be used to design anti-windup compensators to counter problems associated with saturating actuators, such as pilot-induced oscillations in aircraft and stability/robust performance problems in state-of-the-art hard-disk drive servo systems. The paper is written in two parts: Part 1 considers helicopter control and Part 2 addresses saturation problems in high-performance head-positioning servo systems in high-density hard-disk drives.
Item Type: | Conference or Workshop Item (Paper) |
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Subjects: | H600 Electronic and Electrical Engineering |
Department: | Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering |
Depositing User: | Sarah Howells |
Date Deposited: | 19 Nov 2012 14:42 |
Last Modified: | 13 Oct 2019 00:23 |
URI: | http://nrl.northumbria.ac.uk/id/eprint/10304 |
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