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Power management during grid faults

  • US 8,742,609 B2
  • Filed: 06/30/2010
  • Issued: 06/03/2014
  • Est. Priority Date: 06/30/2009
  • Status: Active Grant
First Claim
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1. A wind turbine facility adapted to deliver electrical energy to an associated power supply grid, the wind turbine facility comprising:

  • a generator for converting mechanical energy to electrical energy, the generator being mechanically coupled to a set of rotor blades via a gearing arrangement;

    an electric power converter electrically coupled to the generator and the associated power supply grid via a grid transformer;

    power dissipation/storage means being configured to dissipate or store an amount of electrical energy from the generator; and

    a controller that;

    determines a maximum dissipation level or energy storage capacity of the power dissipation/storage means, andoperates the wind turbine facility such that a total amount of electrical energy generated by the wind turbine facility does not exceed a sum of (i) the maximum dissipation level or energy storage capacity and (ii) an amount of electrical energy to be delivered to the power supply grid.

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