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POWER DISSIPATING ARRANGEMENT IN A WIND TURBINE

  • US 20140217730A1
  • Filed: 07/24/2012
  • Published: 08/07/2014
  • Est. Priority Date: 07/27/2011
  • Status: Active Grant
First Claim
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1. A power dissipating arrangement for dissipating power from a generator in a wind turbine, wherein the generator comprises a plurality of output terminals corresponding to a multi-phase output, the power dissipating arrangement comprises:

  • a plurality of dissipating units, each dissipating unit having a first terminal and a second terminal, wherein the first terminal of each dissipating unit is coupled to each output terminal of the generator;

    a plurality of semiconductor switches, each semiconductor switch having a first terminal, a second terminal and a gate terminal, wherein the first terminal of each semiconductor switch is coupled to the second terminal of each dissipating unit and the second terminal of the semiconductor switch is coupled to the second terminal of another dissipating unit, such that the second terminal of each dissipating unit is coupled to the first terminal of one semiconductor switch and the second terminal of another semiconductor switch;

    a trigger circuit coupled to the gate terminals of the plurality of the semiconductor switches for switching the semiconductor switches; and

    a control unit for controlling the operation of the trigger circuit, thereby controlling the switching of the semiconductor switches.

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