WO2023078519 - A METHOD FOR REDUCING BLADE VIBRATIONS IN A WIND TURBINE
National phase entry:
Publication Number
WO/2023/078519
Publication Date
11.05.2023
International Application No.
PCT/DK2022/050230
International Filing Date
03.11.2022
Title **
[English]
A METHOD FOR REDUCING BLADE VIBRATIONS IN A WIND TURBINE
[French]
PROCÉDÉ DE RÉDUCTION DE VIBRATIONS DE PALE DANS UNE ÉOLIENNE
Applicants **
VESTAS WIND SYSTEMS A/S
Hedeager 42
8200 Aarhus N, DK
Inventors
SØRENSEN, Kim Hylling
c/o Vestas Wind Systems A/S
Hedeager 42
8200 Aarhus N, DK
LARSEN, Torben Juul
c/o Vestas Wind Systems A/S
Hedeager 42
8200 Aarhus N, DK
NIELSEN, Thomas S. Bjertrup
c/o Vestas Wind Systems A/S
Hedeager 42
8200 Aarhus N, DK
Priority Data
PA202170540
04.11.2021
DK
Application details
| Total Number of Claims/PCT | * |
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| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
| Pages for Publication | * |
| Number of Pages with Drawings | * |
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International Searching Authority |
EPO
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing | 989 | |
| EPO | Filing, Examination | 4626 | |
| Japan | Filing | 596 | |
| South Korea | Filing | 575 | |
| USA | Filing, Examination | 2710 |
Total: 9496 USD
The term for entry into the National Phase has expired. This quotation is for informational purposes only
Abstract[English]
A method for controlling a wind turbine (1) is disclosed. The wind turbine (1) comprises three or more wind turbine blades (4), and blade connecting wires (7), each blade connecting wire (7) extending between a connection point (8) on one wind turbine blade (4) and a connection point (8) on a neighbouring wind turbine blade (4). The wind turbine further comprises pre-tension wires (9), each pre-tension wire (9) being connected to one of the blade connecting wires (7) and to a pre-tension adjustment mechanism (10). The method comprises measuring at least one parameter of the wind turbine blades (4) of the wind turbine (1), and deriving, from the at least one measured parameter, an estimate for blade vibrations within the rotor plane of each wind turbine blade (4) and/or coupled rotor vibrations originating from the wind turbine blades (4). The pre-tension adjustment mechanism (10) is controlled based on the estimated vibrations in order to counteract the blade vibrations and/or coupled rotor vibrations.[French]
L'invention concerne un procédé de commande d'une éolienne (1). L'éolienne (1) comprend au moins trois pales d'éolienne (4), et des fils de liaison de pale (7) dont chacun s'étend entre un point de liaison (8) sur une pale d'éolienne (4) et un point de liaison (8) sur une pale d'éolienne (4) voisine. L'éolienne comprend en outre des fils de pré-tension (9) dont chacun est relié à l'un des fils de liaison de pale (7) et à un mécanisme de réglage de pré-tension (10). Le procédé comprend la mesure d'au moins un paramètre des pales d'éolienne (4) de l'éolienne (1), et la dérivation, à partir du ou des paramètres mesurés, d'une estimation des vibrations de pale à l'intérieur du plan de rotor de chaque pale d'éolienne (4) et/ou des vibrations de rotor couplées provenant des pales d'éolienne (4). Le mécanisme de réglage de pré-tension (10) est commandé sur la base des vibrations estimées afin de contrebalancer les vibrations de pale et/ou les vibrations de rotor couplées.