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MONITORING DEVICE FOR PITCH SYSTEMS OF WIND ENERGY SYSTEMS

  • US 20110181045A1
  • Filed: 05/29/2009
  • Published: 07/28/2011
  • Est. Priority Date: 05/30/2008
  • Status: Active Grant
First Claim
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1. A wind energy installation, comprising:

  • a rotor including at least one blade;

    a generator configured to be driven by the rotor to produce electrical energy;

    a pitch device configured to vary the at least one blade of the rotor, the pitch device including a power supply unit with a battery and an actuating drive; and

    a monitoring unit including a load module configured to switch the actuating drive between an operating mode and a test mode, wherein, in the test mode, the actuating drive forms a preselectable defined load for the battery.

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