Wind direction and wind velocity measuring apparatus for wind turbine, and device and method for controlling yaw angle of wind turbine by using same
AssigneeKorea Aerospace Research Institute
InventorByeong Hee Chang
Life of this patent
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Abstract
A technical object of the present disclosure is to provide an anemometer for a wind turbine which is capable of precisely measuring a wind velocity and a wind direction. To this end, an anemometer for a wind turbine of the present disclosure is an anemometer for a wind turbine which is used for a wind turbine including a plurality of rotating blades and a hub which is equipped at a rotation center of the plurality of rotating blades and has a nosecone and is equipped in the nosecone.
Claims19
An anemometer for a wind turbine which is used for a wind turbine including a plurality of rotating blades and a hub which is equipped at a rotation center of the plurality of rotating blades and has a nosecone,
- wherein the anemometer is equipped in the nosecone;
- and
- wherein the anemometer comprises:
- a first ultrasonic sensor which oscillates a first ultrasonic wave and receives a second ultrasonic wave;
- a second ultrasonic sensor which oscillates the second ultrasonic wave and receives the first ultrasonic wave;
- a third ultrasonic sensor which oscillates a third ultrasonic wave in a first direction intersecting the first ultrasonic wave and receives a fourth ultrasonic wave in a second direction opposing to the first direction;
- and
- a fourth ultrasonic sensor which oscillates the fourth ultrasonic wave in the second direction and receives the third ultrasonic wave in the first direction,
- wherein the first and second ultrasonic sensors measure a first wind velocity in a same direction as a transmitting direction of the first ultrasonic wave and
- the third and fourth ultrasonic sensors measure a second wind velocity in a same direction as a transmitting direction of the third ultrasonic wave.
Dependencies are inferred from the claim text.