| 摘要 |
The present invention relates to an arrangement and a method to control the yawing of a wind turbine. The wind-turbine shows a nacelle and a hub. The nacelle is mounted rotatable around a first axis by an adjustable yaw-angle. The hub is connected with the nacelle and the hub is mounted rotatable around a rotational axis. The rotational axis is inclined by a certain angle to the first axis. The hub carries at least one blade, which rotates around the rotational axis due to an incoming wind. The rotating blade defines a rotor-plane, which is perpendicular to the rotational-axis. The wind-turbine comprises a channel with at least one opening, while the opening is located at a predefined distance to the rotor-plane. The opening is arranged in a way, that at least one component of the incoming wind is guided through the opening and into the channel as an air-flow. The channel comprises a measuring-device, which is arranged to measure the air-flow through the channel. The measuring-device is connected with a controller, which is arranged to use the measured air-flow to detect an yaw-angle-error between the direction of the incoming wind and the rotational axis, while the yaw-angle-error is used to adjust the yaw-angle of the nacelle. |
