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SYSTEM AND METHOD FOR BRAKING A WIND TURBINE ROTOR AT AN OVERSPEED CONDITION

  • US 20140050579A1
  • Filed: 08/16/2012
  • Published: 02/20/2014
  • Est. Priority Date: 08/16/2012
  • Status: Active Grant
First Claim
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1. A wind turbine, comprising:

  • a hub with a plurality or rotor blades configured thereon, said hub connected to a generator rotor via a drive train;

    a sensor disposed to monitor rotation of said rotor;

    a brake configured to reduce the rotational speed of said rotor;

    a brake control system operatively coupled to said brake and said sensor, said brake control system configured to apply a braking torque to said rotor via said brake at a first setpoint rotational speed and to proportionally increase the braking torque as the detected rotational speed of said rotor increases beyond the first detected setpoint rotational speed.

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