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Robust anti-windup design for active trailing edge flaps in active rotor applications

Robust anti-windup design for active trailing edge flaps in active rotor applications
Robust anti-windup design for active trailing edge flaps in active rotor applications

Active trailing edge flap actuators play a significant role in active rotor applications whereby certain performance aspects, such as reduction of vibratory hub loads, are able to be improved in more economical ways in comparison to other active approaches. Feedback control systems are expected to be required in order to offer a desired actuator performance in the face of air loads and actuator uncertainty. However the operation of feedback controllers under significant air loads and varying RPM conditions may cause the controller to make demands beyond those achievable with the physical device, resulting in significant performance degradation. For this reason, this paper explore the use of more advanced control tools, known as anti-windup systems, to deal with these control signal constraints and hence offer graceful performance degradation when operating in such a demanding regime. One specific anti-windup technique is explored in this work for vibration reduction applications. The benefits of this approach are shown to be significant and clearly exposed through a simulation example.

2475-2481
American Helicopter Society
Morales, Rafael M.
abe4cfe5-5e40-4e5f-bd6a-bf0f9ca4a434
Turner, Matthew C.
6befa01e-0045-4806-9c91-a107c53acba0
Morales, Rafael M.
abe4cfe5-5e40-4e5f-bd6a-bf0f9ca4a434
Turner, Matthew C.
6befa01e-0045-4806-9c91-a107c53acba0

Morales, Rafael M. and Turner, Matthew C. (2014) Robust anti-windup design for active trailing edge flaps in active rotor applications. In 70th American Helicopter Society International Annual Forum 2014. vol. 4, American Helicopter Society. pp. 2475-2481 .

Record type: Conference or Workshop Item (Paper)

Abstract

Active trailing edge flap actuators play a significant role in active rotor applications whereby certain performance aspects, such as reduction of vibratory hub loads, are able to be improved in more economical ways in comparison to other active approaches. Feedback control systems are expected to be required in order to offer a desired actuator performance in the face of air loads and actuator uncertainty. However the operation of feedback controllers under significant air loads and varying RPM conditions may cause the controller to make demands beyond those achievable with the physical device, resulting in significant performance degradation. For this reason, this paper explore the use of more advanced control tools, known as anti-windup systems, to deal with these control signal constraints and hence offer graceful performance degradation when operating in such a demanding regime. One specific anti-windup technique is explored in this work for vibration reduction applications. The benefits of this approach are shown to be significant and clearly exposed through a simulation example.

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More information

Published date: 2014
Venue - Dates: 70th American Helicopter Society International Annual Forum 2014, , Montreal, QC, Canada, 2014-05-20 - 2014-05-22

Identifiers

Local EPrints ID: 439237
URI: http://eprints.soton.ac.uk/id/eprint/439237
PURE UUID: e5304cec-45eb-444a-878e-c6c74897b9ab

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Date deposited: 07 Apr 2020 16:31
Last modified: 05 Jun 2024 19:57

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Contributors

Author: Rafael M. Morales
Author: Matthew C. Turner

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