WO2024083294 - WIND TURBINE ROTOR BLADE PITCH CONTROL FOR TOWER FATIGUE REDUCTION
National phase entry:
Publication Number
WO/2024/083294
Publication Date
25.04.2024
International Application No.
PCT/DK2023/050245
International Filing Date
13.10.2023
Title **
[English]
WIND TURBINE ROTOR BLADE PITCH CONTROL FOR TOWER FATIGUE REDUCTION
[French]
COMMANDE DE PAS DE PALE DE ROTOR D'ÉOLIENNE POUR UNE RÉDUCTION DE LA FATIGUE DE LA TOUR
Applicants **
VESTAS WIND SYSTEMS A/S
Inventors
GILES, Alexander Duncan
THOMSEN, Jesper Sandberg
MARTINS CUNHA, Bruno
Priority Data
PA202270510
21.10.2022
DK
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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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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| * | |
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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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* The data is based on automatic recognition. Please verify and amend if necessary.
** IP-Coster compiles data from publicly available sources. If this data includes your personal information, you can contact us to request its removal.
Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2026 | |
| EPO | Filing, Examination, Granting | 8131 | |
| Japan | Filing, Examination, Granting | 2161 | |
| South Korea | Filing, Examination, Granting | 2056 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
19,114
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 collective pitch of the wind turbine rotor blades. A sensor signal is received, from wind turbine sensors, indicative of wind turbine rotor loading in a fore-aft direction. A first component is determined, based on the received sensor signal, in the fore-aft direction, the first component including high frequency collective content, greater than 2P frequency content, from the received sensor signal. A second component that is orthogonal to the first component is generated. The first and second components are rotated about a phase angle to obtain first and second phase-shifted components. A collective pitch reference offset value is determined for the three rotor blades based on the first or the second phase-shifted component. A control signal is transmitted to adjust collective pitch of the rotor blades based on the determined collective pitch reference offset value.[French]
L'invention concerne le réglage du pas collectif des pales de rotor d'éolienne. Un signal de capteur est reçu, à partir de capteurs d'éolienne, et indique une charge de rotor d'éolienne dans un sens avant-arrière. Un premier composant est déterminé, sur la base du signal de capteur reçu, dans le sens avant-arrière, et comprend un contenu collectif haute fréquence, supérieur à 2P le contenu de fréquence, à partir du signal de capteur reçu. Un second composant qui est orthogonal au premier composant est généré. Les premier et second composants tournent autour d'un angle de phase pour obtenir des premier et second composants déphasés. Une valeur de décalage de référence de pas collectif est déterminée pour les trois pales de rotor sur la base du premier ou du second composant déphasé. Un signal de commande est transmis pour ajuster le pas collectif des pales de rotor sur la base de la valeur de décalage de référence de pas collectif déterminée.