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Control system for a wind turbine

  • US 9,028,214 B2
  • Filed: 08/20/2010
  • Issued: 05/12/2015
  • Est. Priority Date: 08/24/2009
  • Status: Active Grant
First Claim
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1. A control system for a wind turbine, comprising:

  • an electrical device that is arranged for being used during normal operation of a wind turbine; and

    a power source that is arranged to be used as an emergency power supply to said electrical device,wherein the electrical device is a blade pitch motor for adjusting a pitch of a rotor blade of the wind turbine,wherein the power source is configured to supply a current to the blade pitch motor so that the blade pitch motor tests at least one property of the power source, the current being insufficient to cause a pitch movement of the rotor blade.

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