Articulated blade tip devices for load alleviation on wind turbines
This paper investigates the load alleviation capabilities of an articulated tip device, where the outermost portion of the blade can rotate with respect to the rest of the blade. Passive, semi-passive and active solutions are developed for the tip rotation. In the passive and semi-passive config...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2016-12-01
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| Series: | Wind Energy Science |
| Online Access: | https://www.wind-energ-sci.net/1/297/2016/wes-1-297-2016.pdf |
| Summary: | This paper investigates the load alleviation capabilities of an articulated
tip device, where the outermost portion of the blade can rotate with respect
to the rest of the blade. Passive, semi-passive and active solutions are
developed for the tip rotation. In the passive and semi-passive
configurations tip pitching is mainly driven by aerodynamic loads, while for
the active case the rotation is obtained with an actuator commanded by a
feedback control law. Each configuration is analyzed and tested using a
high-fidelity aeroservoelastic simulation environment, by considering
standard operative conditions as well as fault situations. The potential
benefits of the proposed blade tip concepts are discussed in terms of
performance and robustness. |
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| ISSN: | 2366-7443 2366-7451 |