Improvements relating to wind turbines
AssigneeVestas Wind Systems A/S
InventorIb Svend Olesen
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method and to a wind turbine for determining the tip angle of a blade of a wind turbine rotor during rotation of the rotor. The method comprising: (a) transmitting a light signal from a first blade of the wind turbine rotor towards a second blade of the rotor; (b) receiving the light signal at the second blade of the rotor; and (c) calculating the tip angle of the first or second blade based upon characteristics of the received light signal.
Claims41
A method of determining the tip angle of a blade of a wind turbine rotor during rotation of the rotor, the method comprising:
- (a) transmitting a light signal from a first blade of the wind turbine rotor towards a second blade of the rotor;
- (b) receiving the light signal at the second blade of the rotor;
- and
- (c) calculating the tip angle of the first or second blade based upon characteristics of the received light signal.
A wind turbine comprising:
- a rotor having a plurality of blades;
- a light source;
- a transmitter provided on a first blade of the rotor, the transmitter being arranged to transmit a light signal from the light source towards a second blade of the rotor;
- a receiver provided on the second blade, the receiver being arranged to receive the light signal transmitted from the first blade;
- a detector for detecting the received light signal;
- and
- a processor in communication with the detector and arranged to calculate the tip angle of the first or second blade based upon characteristics of the detected light signal.
Dependencies are inferred from the claim text.