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Wind Energy Science The interactive open-access journal of the European Academy of Wind Energy
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CiteScore value: 0.6
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h5-index value: 13
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Floating wind is the key technology to harvest the abundant wind energy resource of deep waters. This research introduces a new way of controlling the wind turbine to better deal with the action of waves. The turbine is made aware of the incoming waves and the information is exploited to enhance power production.
Preprints
https://doi.org/10.5194/wes-2021-9
https://doi.org/10.5194/wes-2021-9

  01 Mar 2021

01 Mar 2021

Review status: this preprint is currently under review for the journal WES.

Model-based design of a wave-feedforward control strategy in floating wind turbines

Alessandro Fontanella1, Mees Al2, Jan-Willem van Wingerden3, and Marco Belloli1 Alessandro Fontanella et al.
  • 1Mechanical Engineering Department, Politecnico di Milano, Milano, Via La Masa 1, 20156, Italy
  • 2Sowento GmbH, Donizettistraat 1A, 70195 Stuttgart, Germany
  • 3Delft Center for Systems and Control, Delft University of Technology, Delft, 2628 CD, The Netherlands

Abstract. Floating wind turbines rely on feedback-only control strategies to mitigate the effects of wave excitation. Improved power generation and lower fatigue loads can be achieved by including information about the incoming waves into the wind turbine controller. In this paper, a wave-feedforward control strategy is developed and implemented in a 10 MW floating wind turbine. A linear model of the floating wind turbine is established and utilized to show how wave excitation affects the wind turbine rotor speed output, and that collective-pitch is an effective control input to reject the wave disturbance. Based on the inversion of the same model, a feedforward controller is designed, and its performance is examined by means of linear analysis. A gain-scheduling algorithm is proposed to adapt the feedforward action as the wind speed changes. Non-linear time-domain simulations prove that the proposed feedforward control strategy is an effective way of reducing rotor speed oscillations and structural fatigue loads caused by waves.

Alessandro Fontanella et al.

Status: open (until 27 Apr 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on wes-2021-9', Anonymous Referee #1, 15 Mar 2021 reply
    • AC1: 'Reply on RC1', Alessandro Fontanella, 20 Mar 2021 reply

Alessandro Fontanella et al.

Alessandro Fontanella et al.

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Short summary
Floating wind is the key technology to harvest the abundant wind energy resource of deep waters. This research introduces a new way of controlling the wind turbine to better deal with the action of waves. The turbine is made aware of the incoming waves and the information is exploited to enhance power production.
Citation