| 摘要 |
An upwind wind turbine (1) of the present invention includes a tilting coupling mechanism (15), a tilting drive means (40) and a rotation stop means (18). The tilting coupling mechanism (15) is configured to couple base end portions of blades (6) to a hub (5) such that the blades (6) can tilt between a normal position and a retracted position in which the blades (6) are tilted in a downwind direction relative to the normal position, and the tilting drive means (4) operates in association with the tilting coupling mechanism (15) to switch the positions of the blades (6). The rotation stop means (18) stops the rotation of the rotor (4). When the blades (6) are switched to the retraced position, the rotation stop means (18) is actuated to stop the rotor (4) in a predetermined rotational position in which the blades (6) can tilt without interference with the tower (2), and the tilting drive means (15) is actuated to tilt the blades (6) to the retracted position after stop of the rotation of the rotor (4).
|
