公开(公告)号：US09890763B2

公开(公告)日：2018-02-13

申请号：US14666232

申请日：2015-03-23

Applicant: ALSTOM RENEWABLE TECHNOLOGIES

Inventor： Santiago Canedo Pardo ,  Javier Bescos

IPC: F03D1/00 ,  F03D80/00 ,  F03D80/80 ,  F03D13/10

CPC classification number: F03D13/10 ,  F03D80/00 ,  F03D80/88 ,  F05B2230/60 ,  F05B2230/608 ,  Y02E10/72 ,  Y02P70/523 ,  Y10T29/49316 ,  Y10T29/49321

Abstract: Counterweight system for a wind turbine comprising a hub mounted to a nacelle such that the hub is rotatable around a rotation axis with respect to the nacelle. The counterweight system comprises: a mechanical unit comprising a fixed part and a rotatable part, the fixed part being mountable to the hub in such a way that the rotatable part is rotatable with respect to the hub substantially around the rotation axis of the hub; a drive unit for causing rotation of the rotatable part; a beam coupled to the rotatable part at a first point of the beam in such a way that the beam is arranged substantially perpendicular to the rotation axis of the hub; and a counterweight mass coupled to the beam at a second point of the beam. A method of mounting a blade to a hub by using said counterweight system is also provided.