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Methods and apparatuses for wind turbine fatigue load measurement and assessment

  • US 7,822,560 B2
  • Filed: 12/23/2004
  • Issued: 10/26/2010
  • Est. Priority Date: 12/23/2004
  • Status: Expired due to Fees
First Claim
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1. A method comprising:

  • determining position of a wind turbine generator component within a nacelle with respect to a reference location also within the nacelle with one or more sensors coupled with the wind turbine generator component;

    receiving output signals from the one or more sensors with a turbine controller communicatively coupled with the one or more sensors;

    performing tower fatigue analysis with the turbine controller based on the output signals from the one or more sensors wherein results from the tower fatigue analysis comprise a spectral frequency analysis and further wherein the spectral frequency analysis is used to predict fatigue of a lower portion of the tower; and

    generating, with the turbine controller, a graphical user-readable output based on the fatigue analysis indicating fatigue life information.

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