公开(公告)号：EP3597905A1

公开(公告)日：2020-01-22

申请号：EP19186805.8

申请日：2019-07-17

申请人： General Electric Company

发明人： Danielsen, Darren John ,  Verzella, Philip James

IPC分类号： F03D7/02 ,  F03D17/00

摘要： A method (100) for reducing loads of a wind turbine (10) includes determining an operational state of the wind turbine (10). The method (100) also includes commanding a predetermined pitch event. Further, the method (100) includes monitoring at least one operating condition of a pitch drive mechanism (32) of a rotor blade (22) of the wind turbine (10) during the predetermined pitch event. If the operational state corresponds to a predetermined operational state and the operating condition(s) follows a pitch fault pattern during the predetermined pitch event, the method (100) also include yawing a nacelle (16) of the wind turbine (10) away from an incoming wind direction.

公开(公告)号：EP3597910A1

公开(公告)日：2020-01-22

申请号：EP19186802.5

申请日：2019-07-17

申请人： General Electric Company

发明人： Danielsen, Darren John ,  Verzella, Philip James ,  Gandhi, Jignesh Govindlal ,  Souri, Ramy Michael ,  Davidson, James Paul ,  Tschappatt, Christopher Lee

IPC分类号： F03D17/00 ,  F03D7/02

摘要： A method (100) for reducing loads of a wind turbine (10) includes determining an angular pitch speed parameter of the rotor blade (22) of the wind turbine (10). The method (100) also includes determining an operational state of the wind turbine (10). Further, the method (100) includes comparing the angular pitch speed parameter to a predetermined parameter threshold during turbine shutdown and/or a commanded pitch event. If the operational state corresponds to a predetermined operational state, the method (100) includes yawing a nacelle (16) of the wind turbine (10) away from an incoming wind direction when the angular pitch speed parameter is below the predetermined parameter threshold during the turbine shutdown and/or the commanded pitch event.