Chen, C;
Duffour, P;
Fromme, P;
(2019)
Novel Aerodynamic Damping Identification Method for Operating Wind Turbines.
Journal of Physics: Conference Series
, 1222
(1)
, Article 012008. 10.1088/1742-6596/1222/1/012008.
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Abstract
This contribution introduces a novel method to determine the aerodynamic damping for operating wind turbines. Previous research typically estimated the modal damping ratios in the fore-aft and side-side directions as two decoupled degrees of freedom. This can result in misleading results, as the two directions are closely and unconventionally coupled through the wind-rotor interaction. This study proposes the identification of a novel type of aerodynamic damping matrix. This matrix arises from the linearization of the aerodynamic force resultant obtained from blade element momentum theory (blade modes not included). This linearized force is then applied to a beam finite element model of the tower with a lumped mass representing the rotor-nacelle assembly. This decoupled strategy efficiently describes the physics of the system including the coupling between the fore-aft and side-side motions. The identification of the damping matrix is shown to work for simulated wind time data.
| Type: | Article |
|---|---|
| Title: | Novel Aerodynamic Damping Identification Method for Operating Wind Turbines |
| Event: | WindEurope Conference and Exhibition 2019 |
| Location: | Bilbao, Spain |
| Dates: | 2nd-4th April 2019 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1088/1742-6596/1222/1/012008 |
| Publisher version: | https://doi.org/10.1088/1742-6596/1222/1/012008 |
| Language: | English |
| Additional information: | © 2019 IOP Publishing. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Mechanical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10076282 |
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