Damping of in-plane vibrations in multi-rotor structures

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11841005
APP PUB NO 20230035973A1
SERIAL NO

17758653

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Abstract

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Embodiments herein describe in-plane vibration damping techniques for MR turbines. The MR turbines can include arms that extend from a common tower and support multiple rotors. Because the rotors are disposed laterally away from the tower, side-to-side motion of the tower causes the rotors to have an angled trajectory that includes both lateral and vertical displacement. In addition, a rotor disposed on one side of the tower in MR turbine can have a very different trajectory than a rotor disposed on the opposite side of the tower. To account for the vertical displacement and the different trajectories, in one embodiment, a controller can use different phase offsets for each rotor when calculating pitch offsets for performing in-plane vibration damping. In another embodiment, the controller can use both the lateral and vertical accelerations of the rotors to identify the pitch offsets for the rotors to perform in-plane vibration damping.

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Patent Owner(s)

Patent OwnerAddress
VESTAS WIND SYSTEMS A/S8200 AARHUS N

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Couchman, Ian Horley, GB 17 142
Dalsgaard, Søren Hadsten, DK 29 236
Neto, Julio Xavier Vianna Aarhus N, DK 17 14
Sowman, Jon Aarhus N, DK 4 4

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