Wind Energy Science
Wind Energy Science
WES
Articles | Volume 11, issue 7
Articles | Volume 11, issue 7
https://doi.org/10.5194/wes-11-2405-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/wes-11-2405-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 11, issue 7
Research article
 | 
08 Jul 2026
Research article |  | 08 Jul 2026

Wind speed estimation using second-order sliding-mode observers: simulation and experimental validation on a floating offshore wind turbine

Moein Sarbandi, Matis Viozelange, Mohamed Assaad Hamida, and Franck Plestan
Publisher's note: On 14 July 2026, errors in Eqs. (33) and (34) were corrected.

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Short summary
Floating offshore wind turbines unlock vast wind resources in deep waters, but platform motion makes wind speed hard to measure directly. This study develops an estimation method that infers wind speed from rotor rotation alone, using sliding-mode observer theory. Tested in a high-fidelity simulator and validated in a wave-tank experiment, the proposed method achieves comparable or superior accuracy to the Kalman filter, with simpler tuning, faster computation, and greater robustness.
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