INSTALLING BLADES IN A WIND TURBINE AND WIND TURBINE LIFTING SYSTEMS

摘要

Methods for installing blades of a wind turbine are provided. The method comprises: providing a blade holder, wherein the blade holder comprises a connection element adapted to be attached to a mounting surfaces and a lifting equipment attachment, the blade holder being provided with a steering mechanism. Then, the blade holder is attached to the blade. The blade holder is hoisted with the blade towards the rotor hub with lifting equipment. The blade holder is attached to the mounting surface of the hub using the connection element. The rotor hub is rotated using the weight of the blade holder and the blade to a first desired position for mounting the blade to the rotor hub. The blade holder is detached from the hub. Then, the blade may be mounted to the rotor hub. A wind turbine blade holder for holding a blade and for use in lifting the blade is also provided.

主权项

1. A method for installing a blade of a wind turbine, the wind turbine comprising a rotor hub positioned on a wind turbine tower such that the rotor hub is configured to rotate around an axis, the rotor hub comprising a mounting surface, the method comprising:
providing a blade holder for holding a blade, wherein the blade holder comprises a connection element adapted to attach to the mounting surface and a lifting equipment attachment, the blade holder being provided with a first steering mechanism adapted to control an orientation of the blade holder with respect to the lifting equipment attachment; providing lifting equipment for lifting the blade holder; attaching the blade holder to the blade; connecting the lifting equipment to the blade holder using the lifting equipment attachment; hoisting the blade holder with the blade towards the rotor hub using the lifting equipment; attaching the blade holder to the mounting surface of the hub using the connection element; using the weight of the blade holder and the blade, rotating the rotor hub to a first desired position for mounting the blade to the rotor hub; detaching the blade holder from the hub; and mounting the blade to the rotor hub.