Invention Grant
- Patent Title: Method for balancing a wind turbine
- Patent Title (中): 风力发电机平衡方法
-
Application No.: US13321803Application Date: 2010-05-13
-
Publication No.: US08683688B2Publication Date: 2014-04-01
- Inventor: Ulf Axelsson , Mikael Bjork , Christian Haag
- Applicant: Ulf Axelsson , Mikael Bjork , Christian Haag
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Global Patent Operation
- Agent Douglas D. Zhang
- Priority: SE0950359 20090520
- International Application: PCT/EP2010/056634 WO 20100513
- International Announcement: WO2010/133512 WO 20101125
- Main IPC: F03D7/00
- IPC: F03D7/00

Abstract:
The present invention relates to a method for balancing a wind turbine. The method includes the steps of a) measuring at least one property that is dependent on a motor workload of at least one yaw motor 52 of a soft yaw system 5 during a period of time, b) calculating an unbalance based on the measurement of step a), c) determining a pitch offset angle for at least one turbine blade 41 based on the calculation of step b), and d) changing the pitch of the at least one turbine blade according to the pitch offset angle of step c) for decreasing the unbalance. The present invention also relates to a system for balancing a wind turbine.
Public/Granted literature
- US20120180314A1 COMPOSITE SHROUD AND METHODS FOR ATTACHING THE SHROUD TO PLURAL BLADES Public/Granted day:2012-07-19
Information query