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1. WO2007045940 - WIND TURBINE BLADE WITH VARIABLE AERODYNAMIC PROFILE

Publication Number WO/2007/045940
Publication Date 26.04.2007
International Application No. PCT/IB2005/053397
International Filing Date 17.10.2005
Chapter 2 Demand Filed 06.08.2007
IPC
F03D 1/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
1Wind motors with rotation axis substantially parallel to the air flow entering the rotor
06Rotors
F03D 7/04 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
7Controlling wind motors
02the wind motors having rotation axis substantially parallel to the air flow entering the rotor
04Automatic control; Regulation
CPC
F03D 1/0641
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
1Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
06Rotors
0608characterised by their form
0633of the blades
0641of the section profile of the blades
F03D 7/022
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
7Controlling wind motors
02the wind motors having rotation axis substantially parallel to the air flow entering the rotor
022Adjusting aerodynamic properties of the blades
F03D 7/024
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
7Controlling wind motors
02the wind motors having rotation axis substantially parallel to the air flow entering the rotor
022Adjusting aerodynamic properties of the blades
024of individual blades
F03D 7/043
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
DWIND MOTORS
7Controlling wind motors
02the wind motors having rotation axis substantially parallel to the air flow entering the rotor
04Automatic control; Regulation
042by means of an electrical or electronic controller
043characterised by the type of control logic
F05B 2240/301
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
2240Components
20Rotors
30Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
301Cross-section characteristics
F05B 2240/311
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
2240Components
20Rotors
30Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
31of changeable form or shape
311flexible or elastic
Applicants
  • VESTAS WIND SYSTEMS A/S [DK]/[DK] (AllExceptUS)
  • GODSK, Kristian Balschmidt [DK]/[DK] (UsOnly)
  • NIELSEN, Thomas S. Bjertrup [DK]/[DK] (UsOnly)
Inventors
  • GODSK, Kristian Balschmidt
  • NIELSEN, Thomas S. Bjertrup
Agents
  • BUDDE, SCHOU & OSTENFELD A/S
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) WIND TURBINE BLADE WITH VARIABLE AERODYNAMIC PROFILE
(FR) PALE D’AÉROGÉNÉRATEUR À PROFIL AÉRODYNAMIQUE VARIABLE
Abstract
(EN)
A wind turbine blade comprising an active elastic member arranged with access to the surface of the wind turbine blade is provided. The active elastic member is deformable from a first shape to a second shape and the lift coefficient of the airfoil with the active elastic member in the first shape is larger than the lift coefficient of the airfoil with the active elastic member in the second shape. Furthermore, a wind turbine comprising such a wind turbine blade and a method of operating a wind turbine comprising such a wind turbine blade are provided.
(FR)
La présente invention concerne une pale d’aérogénérateur comprenant un organe élastique actif agencé pour donner accès à la surface de la pale d’aérogénérateur. L’organe élastique actif peut passer d’une première forme à une deuxième forme, le coefficient de portance du profil aérodynamique lorsque l’organe élastique actif a la première forme est supérieur au coefficient de portance du profil aérodynamique lorsque l’organe élastique actif a la deuxième forme. L’invention concerne en outre un aérogénérateur comprenant une telle pale d’aérogénérateur et un procédé pour exploiter un aérogénérateur doté de ladite pale d’aérogénérateur.
Also published as
CA2625070
Latest bibliographic data on file with the International Bureau