公开(公告)号：US12092075B2

公开(公告)日：2024-09-17

申请号：US18267802

申请日：2021-07-13

申请人： Vestas Wind Systems A/S

发明人： Jens Bredal Nielsen ,  Mads Broelsmand Hansen ,  Alexander Dierking ,  Lasse Godballe Andersen

IPC分类号： F03D1/06 ,  F03D13/10 ,  F03D80/70 ,  F03D80/50

CPC分类号： F03D13/104 ,  F03D1/066 ,  F03D80/701 ,  F03D80/502 ,  F05B2230/80

摘要： The invention relates to a method of prolonging pitch bearing lifetime for a wind turbine as well as the pitch bearing itself. The method comprises the steps of: —stopping the rotor (4) from rotating; —removing a plurality of first fastening means used for mounting the blade (5) to the outer bearing ring (24); —mounting a strengthening arc structure (10) on said outer bearing ring (24), opposite the blade (5); —installing a plurality of second fastening means, thereby connecting said blade (5) and said strengthening arc structure (10) to said outer bearing ring (24).

公开(公告)号：US12012930B2

公开(公告)日：2024-06-18

申请号：US17772685

申请日：2019-10-30

申请人： General Electric Company

发明人： Ameet Shridhar Deshpande ,  John Joseph Mihok ,  Ashley Simone Wilford ,  Michael James Rizzo ,  Santiago Murcia

IPC分类号： F03D7/02 ,  F03D7/04 ,  F03D80/70

CPC分类号： F03D7/0224 ,  F03D7/04 ,  F03D7/045 ,  F03D80/701 ,  F05B2260/79 ,  F05B2260/902

摘要： A method for preventing a pitch bearing failure of a pitch system of a wind turbine includes monitoring, via at least one sensor, one or more electrical signals of a pitch motor of a pitch drive mechanism of the pitch system that drives a pitch bearing of the pitch system. The method also includes analyzing, via the controller, the one or more electrical signals of the pitch motor so as to remove noise and amplify outliers. Moreover, the method includes estimating bearing friction of the pitch bearing using the analyzed one or more electrical signals of the pitch motor. As such, the method includes implementing, via the controller, a control action when the estimated bearing friction of the pitch bearing indicates an anomaly in the pitch bearing.

公开(公告)号：US20240287968A1

公开(公告)日：2024-08-29

申请号：US18574154

申请日：2022-03-28

申请人： BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.

发明人： Pengfei ZHANG ,  Huili SU ,  Wei HAN ,  Shipei ZHAO

IPC分类号： F03D17/00 ,  F03D80/70

CPC分类号： F03D17/032 ,  F03D17/006 ,  F03D17/011 ,  F03D80/701 ,  F05B2260/80 ,  F05B2270/404 ,  F05B2270/808

摘要： A service life evaluation method and device for a pitch bearing of a wind turbine are provided. The method includes: acquiring a probability density of a pitch driving torque in M historical periods, wherein M is a positive integer; acquiring an angle cumulative value of a pitch angle in each of the M historical periods; determining an equivalent load of the pitch bearing based on the pitch driving torque, the probability density of the pitch driving torque in the M historical periods, and angle cumulative values in the M historical periods; and determining a consumed service life of the pitch bearing based on the equivalent load of the pitch bearing

公开(公告)号：US20240068447A1

公开(公告)日：2024-02-29

申请号：US18267802

申请日：2021-07-13

申请人： Vestas Wind Systems A/S

发明人： Jens Bredal Nielsen ,  Mads Broelsmand Hansen ,  Alexander Dierking ,  Lasse Godballe Andersen

IPC分类号： F03D13/10 ,  F03D1/06 ,  F03D80/70

CPC分类号： F03D13/104 ,  F03D1/066 ,  F03D80/701 ,  F03D80/502

摘要： The invention relates to a method of prolonging pitch bearing lifetime for a wind turbine as well as the pitch bearing itself. The method comprises the steps of: —stopping the rotor (4) from rotating; —removing a plurality of first fastening means used for mounting the blade (5) to the outer bearing ring (24); —mounting a strengthening arc structure (10) on said outer bearing ring (24), opposite the blade (5); —installing a plurality of second fastening means, thereby connecting said blade (5) and said strengthening arc structure (10) to said outer bearing ring (24).