[특허]System and method for upwind speed based control of a wind turbine

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F03D-009/00 H02P-009/04
출원번호	US-0239792 (2005-09-30)
등록번호	US-7342323 (2008-03-11)
발명자 / 주소	Avagliano,Aaron Lyons,James Patrick Francis Barbu,Corneliu Suryanarayanan,Shashikanth
출원인 / 주소	General Electric Company
대리인 / 주소	Fletcher Yoder
인용정보	피인용 횟수 : 50 인용 특허 : 9

초록 ▼

A method for controlling power output of a wind turbine generator in response to an anticipated change in wind speed is provided. The method includes sensing wind speed at a desired distance from the wind turbine generator in a direction of the wind. The method further includes controlling pitch of

A method for controlling power output of a wind turbine generator in response to an anticipated change in wind speed is provided. The method includes sensing wind speed at a desired distance from the wind turbine generator in a direction of the wind. The method further includes controlling pitch of a blade of the wind turbine generator based upon sensed transient wind speed in advance of a change in wind speed at the wind turbine generator.

대표청구항 ▼

The invention claimed is: 1. A method for controlling power output of a wind turbine generator in response to an anticipated change in wind speed, comprising: sensing wind speed at a desired distance from the wind turbine generator in a direction of the wind; determining a blade pitch command signa

The invention claimed is: 1. A method for controlling power output of a wind turbine generator in response to an anticipated change in wind speed, comprising: sensing wind speed at a desired distance from the wind turbine generator in a direction of the wind; determining a blade pitch command signal based upon a difference between a reference generator speed and actual generator speed; determining a feed-forward signal based upon wind turbine tower dynamics, in response to the change in the sensed upwind wind speed, and coupling the feed-forward signal to the blade pitch command signal to obtain a collective blade pitch command signal; and controlling pitch of a blade of the wind turbine generator based upon sensed transient wind speed in advance of a change in wind speed at the wind turbine generator. 2. The method of claim 1, wherein sensing wind speed comprises sensing upwind wind speed via a light detection and ranging (LIDAR) device. 3. The method of claim 1, wherein sensing wind speed comprises sensing upwind wind speed ahead at least one specific portion of the blade based upon contribution of that section to aerodynamic torque on the blade. 4. The method of claim 1, comprising controlling generator speed via controlling of the pitch of the blade. 5. The method of claim 1, wherein the feed-forward signal is determined via a gain based upon tower dynamics and generator dynamics. 6. The method of claim 5, wherein the feed-forward signal is further based upon the sensed wind speed. 7. A method for controlling power output of a wind turbine generator in response to an anticipated change in wind speed, comprising: sensing upwind speed at a desired distance from the wind turbine generator in a direction of the wind; determining a feed-forward signal based upon wind turbine tower dynamics, in response to a change in the sensed upwind wind speed; and utilizing the feed-forward signal to determine a collective blade pitch command signal configured to control pitch of a wind turbine blade in advance of a change in upwind speed at the wind turbine generator. 8. The method of claim 7, wherein sensing upwind wind speed comprises sensing upwind wind speed via a light detection and ranging (LIDAR) device. 9. The method of claim 7, wherein sensing upwind wind speed comprises sensing upwind wind speed ahead at least one specific portion of the blade based upon contribution of that section to aerodynamic torque on the blade. 10. The method of claim 7, comprising controlling generator speed via controlling of the pitch of the blade. 11. The method of claim 7, wherein the feed-forward signal is determined via a gain based upon tower dynamics and generator dynamics. 12. The method of claim 7, wherein the feed-forward signal is further based upon the sensed wind speed. 13. A wind turbine generator, comprising: a plurality of blades mounted on a rotor drivingly coupled to an electrical generator; an upwind wind speed sensor configured to sense wind speed at a desired distance from the wind turbine generator in a direction of the wind; a feed-forward control system configured to determine a feed-forward signal based upon wind turbine tower dynamics, in response to the change in the sensed upwind wind speed, and coupling the feed-forward signal to a blade pitch command signal to obtain a collective blade pitch command signal; and a pitch control system configured to control pitch of a blade of the wind turbine generator based upon sensed transient wind speed in advance of a change in wind speed at the wind turbine generator, wherein the pitch control system is configured to control the pitch of the blade based upon a difference between a reference generator speed and actual generator speed. 14. The wind turbine of claim 13, wherein the upwind wind speed sensor comprises a light detection and ranging (LIDAR) device. 15. The wind turbine of claim 13, further comprising a feedback control system configured to determine a blade pitch command signal based upon the difference between the reference generator speed and actual generator speed. 16. The wind turbine of claim 13, wherein the feed-forward signal is determined via a gain based upon tower dynamics and generator dynamics. 17. The wind turbine of claim 13, wherein the feed-forward signal is further based upon the sensed wind speed.

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