| 摘要 |
A shroud or fairing 21 for mounting around the tower 11 of a wind turbine generator 10, the shroud 21 extending from adjacent the top of the tower to adjacent ground level G and being so shaped as to cause approaching airflow to be deflected substantially equally to both sides thereof, the shroud 21 being mounted to the tower 11 by one or more bearing rings or slew rings 24, 25 to facilitate rotation about the tower. The tail area below the level of the blades 14 may be increased by addition of a fin 27. The cross section of the shroud may be consistent from top to bottom or alternatively may follow the taper of the cross section of the tower 11. The shroud 21 may be coupled to the rotation mechanism 16 of the nacelle 12, however in windy conditions the shroud 21 may be disengaged from the rotation mechanism. |
