公开(公告)号：US20200025170A1

公开(公告)日：2020-01-23

申请号：US16037256

申请日：2018-07-17

Applicant: General Electric Company

Inventor： Hubert Oing ,  Robert Peter Slack ,  Darren John Danielsen ,  Santiago Tomas

IPC: F03D7/02 ,  F03D7/04 ,  F03D17/00

Abstract: A method for reducing loads of a wind turbine includes determining a wind speed at the wind turbine. Further, the method includes determining an operational state of the wind turbine. The method also includes determining whether a rotor of the wind turbine is imbalanced beyond a predetermined threshold when the operational state corresponds to a predetermined operational state as a rotor imbalance beyond the predetermined threshold is indicative of a pitch fault in one or more of the rotor blades. In addition, the method includes yawing a nacelle of the wind turbine to a predetermined angular position when the wind speed exceeds a predetermined speed threshold and the rotor is imbalanced beyond the predetermined threshold.

公开(公告)号：US20190383266A1

公开(公告)日：2019-12-19

申请号：US16008145

申请日：2018-06-14

Applicant: General Electric Company

Inventor： Clovis Dillon Vaughn ,  Robert Peter Slack ,  Michael James Rizzo

IPC: F03D7/04 ,  F03D17/00 ,  F03D7/02

Abstract: A method for monitoring and controlling a wind turbine to minimize rotor blade damage includes receiving sensor data from one or more sensors indicative of at least one blade parameter of the rotor blade over a predetermined time period. The method also includes trending the sensor data for the predetermined time period with respect to at least one wind parameter. Further, the method includes determining at least one characteristic of the trended sensor data. Moreover, the method includes comparing the at least one characteristic of the trended sensor data to an operating threshold. In addition, the method includes implementing a control action if the comparison of the at least one characteristic of the trended sensor data and the operating threshold indicates blade damage is occurring or is likely to occur.

公开(公告)号：US20190113021A1

公开(公告)日：2019-04-18

申请号：US16133019

申请日：2018-09-17

Applicant: General Electric Company

Inventor： Santiago Tomas ,  Raveendra Penmatsa ,  Soeren Georg ,  Ramy Michael Souri ,  Ryan Michael Sunyak ,  Darren John Danielsen ,  Robert Peter Slack

IPC: F03D7/02 ,  F03D7/04 ,  F03D17/00

CPC classification number: F03D7/0224 ,  F03D7/043 ,  F03D17/00 ,  F05B2260/70 ,  F05B2260/80 ,  F05B2270/107 ,  F05B2270/327 ,  F05B2270/328 ,  F05B2270/8042 ,  F05B2270/807

Abstract: A method for identifying a blade run-away condition in the event of a pitch system failure of a rotor blade of a wind turbine includes determining, via one or more sensors, an actual rotor loading of the wind turbine. The method also includes determining, via a turbine controller, an estimated rotor loading of the wind turbine based on at least one of one or more operating conditions of the wind turbine or one or more wind conditions of the wind turbine. Further, the method includes determining a difference between the actual rotor loading and the estimated rotor loading. The method also includes determining whether the blade run-away condition is present based on the difference. The method may also include implementing a corrective action that mitigates loads caused by the blade run-away condition.