An active fault tolerant control approach to an offshore wind turbine model

Shi, Fengming; Patton, Ron, 1949-

School of Engineering
Wind turbine control; Active fault tolerant control; Fault estimation; Linear parameter varying systems; Closed-loop robustness
2015

Journal article


Rights
© 2015, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Abstract

The paper proposes an observer based active fault tolerant control (AFTC) approach to a non-linear large rotor wind turbine benchmark model. A sensor fault hiding and actuator fault compensation strategy is adopted in the design. The adapted observer based AFTC system retains the well-accepted industrial controller as the baseline controller, while an extended state observer (ESO) is designed to provide estimates of system states and fault signals within a linear parameter varying (LPV) descriptor system context using linear matrix inequality (LMI). In the design, pole-placement is used as a time-domain performance specification while H∞ optimization is used to improve the closed-loop system robustness to exogenous disturbances or modelling uncertainty. Simulation results show that the proposed scheme can easily be viewed as an extension of currently used control technology, with the AFTC proving clear “added value” as a fault tolerant system, to enhance the sustainability of the wind turbine in the offshore environment.

Publisher
The University of Hull
Peer reviewed
Yes
Language
English
Extent
1 MB
Identifier
hull:11586

Journal

Journal title
Renewable energy
Publication date
2015
Publisher
Elsevier
DOI
10.1016/j.renene.2014.10.061
ISSN (Print)
0960-1481
ISSN (Electronic)
1879-0682
Volume
75
Issue
March
Start page
788
End page
798
Notes

Author's accepted manuscript of article published in: Renewable energy, 2015, v.15, March.

Link
Published article
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