WO2023072355 - WHIRLING MODE CONTROL OF A WIND TURBINE BASED ON TOWER MEASUREMENTS
National phase entry:
Publication Number
WO/2023/072355
Publication Date
04.05.2023
International Application No.
PCT/DK2022/050223
International Filing Date
28.10.2022
Title **
[English]
WHIRLING MODE CONTROL OF A WIND TURBINE BASED ON TOWER MEASUREMENTS
[French]
COMMANDE DE MODE DE TOURBILLONNEMENT D'UNE ÉOLIENNE SUR LA BASE DE MESURES DE TOUR
Applicants **
VESTAS WIND SYSTEMS A/S
Inventors
GILES, Alexander Duncan
THOMSEN, Jesper Sandberg
Priority Data
PA202170523
28.10.2021
DK
Application details
| Total Number of Claims/PCT | * |
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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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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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2003 | |
| EPO | Filing, Examination, Granting | 8245 | |
| Japan | Filing, Examination, Granting | 2201 | |
| South Korea | Filing, Examination, Granting | 2045 | |
| USA | Filing, Examination, Granting | 5340 |
Total:
19,834
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
The invention relates to adjusting pitch of rotor blades of a wind turbine. An acceleration signal is received from a wind turbine acceleration sensor and is indicative of side-to-side motion of the wind turbine tower. A first component in a fixed coordinate frame of the wind turbine is determined based on the received acceleration signal. The first component is indicative of a whirling mode of the wind turbine caused by edgewise vibrations of the rotor blades. A second component is generated based on the first component and is orthogonal to the first component. A control action is applied to obtain first and second control components for mitigating the whirling mode. An inverse m-blade coordinate transformation is applied to the first and second control components to obtain pitch reference offset values in a rotor coordinate frame of the wind turbine, which are used to adjust pitch of the rotor blades.[French]
L'invention se rapporte au réglage du pas des pales de rotor d'une éolienne. Un signal d'accélération est reçu en provenance d'un capteur d'accélération d'éolienne et indique un mouvement côte à côte de la tour d'éolienne. Une première composante dans une base de coordonnées fixes de l'éolienne est déterminée sur la base du signal d'accélération reçu. La première composante indique un mode de tourbillonnement de l'éolienne provoqué par des vibrations dans le sens de la traînée des pales de rotor. Une seconde composante est généré sur la base de la première composante et est orthogonale à la première composante. Une action de commande est appliquée pour obtenir des première et seconde composantes de commande pour atténuer le mode de tourbillonnement. Une transformation de coordonnées de pale m inverse est appliquée aux première et seconde composantes de commande pour obtenir des valeurs de décalage de référence de pas dans un cadre de coordonnées de rotor de l'éolienne, qui sont utilisées pour ajuster le pas des pales de rotor.