Articles | Volume 3, issue 2
https://doi.org/10.5194/wes-3-791-2018
https://doi.org/10.5194/wes-3-791-2018
Research article
 | 
25 Oct 2018
Research article |  | 25 Oct 2018

Automatic detection and correction of pitch misalignment in wind turbine rotors

Marta Bertelè, Carlo L. Bottasso, and Stefano Cacciola

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Cited articles

Axelsson, U., Bjork, M., and Haag, C.: Method for Balancing a Wind Turbine, US Patent No. 8683688 B2, 2014. a
Bertelè, M., Cacciola, S., Bottasso, C. L., and Domestici M.: Automatic track and balance of wind turbine rotors, in: WCCM 2017 – 1st World Congress on Condition Monitoring, 13–16 June 2017, London, UK, 2017. a
Bossanyi, E. A.: Wind turbine control for load reduction, Wind Energy, 6, 229–244, https://doi.org/10.1002/we.95, 2003. a
Bottasso, C. L. and Croce, A.: Cp-Lambda: User's Manual, 2006. a
Cacciola, S., and Riboldi, C. E. D.: Equalizing aerodynamic blade loads through individual pitch control via multiblade multilag transformation, J. Sol. Energ., 139, 061008, https://doi.org/10.1115/1.4037744, 2017. a
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Short summary
This work presents a new fully automated method to correct for pitch misalignment imbalances of wind turbine rotors. The method has minimal requirements, as it only assumes the availability of a sensor of sufficient accuracy and bandwidth to detect the 1P harmonic to the desired precision and the ability to command the pitch setting of each blade independently from the others. Extensive numerical simulations are used to demonstrate the new procedure.
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