公开(公告)号：US20150252782A1

公开(公告)日：2015-09-10

申请号：US14424023

申请日：2013-09-05

Applicant: ALSTOM RENEWABLE TECHNOLOGIES

Inventor： Thomas Picard

IPC: F03D7/02 ,  F03D7/04

CPC classification number: F03D7/024 ,  F03D7/0204 ,  F03D7/0224 ,  F03D7/042 ,  F03D15/00 ,  F03D15/20 ,  F03D80/70 ,  F03D80/80 ,  F05B2240/14 ,  F05B2270/33 ,  Y02E10/723

Abstract: Method of operating a wind turbine comprising detecting when a first blade substantially approaches the shadow of the tower, and pitching at least one other blade, which is in or approaching a position above the tower, to increase the angle of attack and wind load on said at least one other blade in such a way that an increase of the tilt angle of the rotor is caused. The method further comprises detecting when the first blade is substantially close to leaving the shadow of the tower, and pitching the at least one other blade to decrease the angle of attack and wind load on said at least one other blade in such a way that the previously caused increase of the tilt angle of the rotor is cancelled.

Abstract translation: 操作风力涡轮机的方法包括：检测何时第一叶片基本上接近塔的阴影，以及俯仰位于或接近塔的上方的至少一个其他叶片，以增加所述塔架上的迎角和风荷载 至少一个其它叶片，使得转子的倾斜角度增加。 该方法还包括检测第一叶片何时基本上接近离开塔的阴影，以及俯仰至少一个其它叶片以减小所述至少一个其它叶片上的迎角和风荷载，使得 先前引起的转子倾斜角的增加被取消。