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특허 상세정보

MyON담기
내보내기 페이스북 공유 카카오톡 공유

Method and apparatus for wind turbine rotor load control

특허상세정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) B63H-003/01   
미국특허분류(USC) 416/061; 416/043; 415/026; 415/048; 415/118
출원번호 US-0357522 (2003-02-03)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Blakely, Sokoloff, Taylor & Zafman LLP
인용정보 피인용 횟수 : 65  인용 특허 : 9
초록
▼

Vertical and horizontal wind shears, yaw misalignment and/or turbulence act together to produce asymmetric loading across a wind turbine rotor. The resultant load produces bending moments in the blades that are reacted through the hub and subsequently to the low-speed shaft. As a result, the main shaft and main shaft flange are displaced from their at rest or non-aerodynamic load positions. The amount of shaft flange displacement is measured using one or more sensors. The output signals from the sensors are used to determine the magnitude and/or the orie...

대표
청구항
▼

What is claimed is: 1. A wind turbine comprising: one or more sensors connected to directly detect deflection of a main shaft flange of the wind turbine from one or more predetermined positions and to generate signals corresponding to the detected deflection; and a control circuit coupled with the one or more sensors to receive the signals and to mitigate a load causing the deflection of the main shaft flange in response to the signals. 2. The wind turbine of claim 1 wherein the control circuit mitigates the load on the main shaft flange by controlli...

이 특허에 인용된 특허 (9)

  1. Hohenemser Kurt H. (2421 Remington La. Brentwood MO 63144). Horizontal axis wind generator having adaptive cyclic pitch control. USP1981114298313.
  2. Larsen Orla W. (Palm Springs CA). In situ balancing of wind turbines. USP1992085140856.
  3. Kos Joseph M. (Holyoke MA) Patrick John P. (South Windsor CT) Harner Kermit I. (Windsor CT). Motion responsive wind turbine tower damping. USP1983124420692.
  4. Soderholm Leo H. (Ames IA). Output responsive field control for wind-driven alternators and generators. USP1986094613762.
  5. Harner Kermit I. (Windsor CT) Patrick John P. (South Windsor CT) Kos Joseph M. (Holyoke MA). Predicted motion wind turbine tower damping. USP1984034435647.
  6. Erdman William L. (Brentwood CA). Variable speed wind turbine with reduced power fluctuation and a static VAR mode of operation. USP1993075225712.
  7. Rogers Ernest E. (Lake Geneva WI). Wind energy conversion system. USP1985014495423.
  8. Aloys Wobben DE. Wind energy installation. USP2002036361275.
  9. Weitkamp, Roland. Wind turbine having sensor elements mounted on rotor blades. USP2005096940186.

이 특허를 인용한 특허 피인용횟수: 65

  1. Perley, Thomas Franklin; Gerber, Brandon Shane. Asymmetric load control for torsion fatigue reduction in a wind turbine tower. USP2017019551320.
  2. Ide,Kazunari; Hayashi,Yoshiyuki; Shibata,Masaaki. Blade-pitch-angle control device and wind power generator. USP2008117452185.
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  4. Fricke, Werner; Sartorius, Florian; Baumgaertel, Christian; Hildebrand, Arno; Gudewer, Wilko; Geiken, Peter; Roer, Jochen. Components of a wind power plant. USP2016049316204.
  5. Molins Garralda, Carlos; Garcia Barace, Alberto; Laborda Rubio, Jose Luis; Arlaban Gabeiras, Teresa; Gonzalez Murua, Alejandro; Aristegui Lantero, Jose Luis; Garcia Sayes, Jose Miguel; Nunez Polo, Miguel. Control method for a wind turbine. USP2018029903341.
  6. Nies, Jacob. Device for driving a first part of a wind energy turbine with respect to a second part of the wind energy turbine. USP2010077762771.
  7. Baker, Myles L.; Arendt, Cory P.. Lightweight composite truss wind turbine blade. USP2011027891948.
  8. Baker, Myles L.; Arendt, Cory P.. Lightweight composite truss wind turbine blade. USP2011027891950.
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  11. Sihler, Christof Martin; Hemmelmann, Jan Erich; Schramm, Simon. Magnetostrictive sensing systems and methods for encoding. USP2011098020455.
  12. Hoffmann, Till. Method and apparatus for load measurement in a wind turbine. USP2012098262354.
  13. Agarwal, Pranav; Shah, Jigar Jayesh. Method and system for managing loads on a wind turbine. USP2018059970415.
  14. Boerlage, Matthijs Leonardus Gerardus; Kammer, Leonardo Cesar. Method and system for operating a wind turbine. USP2012088240991.
  15. Benito, Pedro L.; Wang, Jing. Method and system for operating a wind turbine generator. USP2011087988414.
  16. Hoffmann, Till; Torbohm, Gert; Gandhi, Jignesh; Slack, Robert Peter. Method and system for validating wind turbine. USP2013018360722.
  17. Kühlmeier, Lennart. Method for condition monitoring a rotor of a wind energy plant. USP2011027887292.
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  24. Bagepalli, Bharat Sampathkumaran; Jansen, Patrick Lee; Barnes, Gary R.; Fric, Thomas Frank; Lyons, James Patrick Francis; Pierce, Kirk Gee; Holley, William Edwin; Barbu, Corneliu. Methods and apparatus for controlling rotary machines. USP2009097581921.
  25. Slack, Robert Peter. Methods and apparatus for error reduction in rotor loading measurements. USP2012078215905.
  26. LeMieux, David Lawrence. Methods and apparatuses for wind turbine fatigue load measurement and assessment. USP2010107822560.
  27. Delport, Sara Simonne L.; Honhoff, Saskia Gerarda. Methods and systems for reducing amplitude modulation in wind turbines. USP2017039593668.
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