Comparison between upwind and downwind designs of a 10 MW wind turbine rotor

Bortolotti, Pietro; Kapila, Abhinav; Bottasso, Carlo L.

The size of wind turbines has been steadily growing in the pursuit of a lower cost of energy by an increased wind capture. Within this trend, the vast majority of wind turbine rotors have been designed based on the conventional three-bladed upwind concept. This paper aims at assessing the optimality of this configuration with respect to a three-bladed downwind design, with and without an actively controlled variable coning used to reduce the cantilever loading of the blades. Results indicate that a conventional design appears difficult to beat even at these turbine sizes, although a downwind nonaligned configuration might be an interesting alternative.

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Bortolotti, Pietro / Kapila, Abhinav / Bottasso, Carlo L.: Comparison between upwind and downwind designs of a 10 MW wind turbine rotor. 2019. Copernicus Publications.

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Rechteinhaber: Pietro Bortolotti et al.

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