Low voltage ride through for wind turbine generators

CAFC
  • US 6,921,985 B2
  • Filed: 01/24/2003
  • Issued: 07/26/2005
  • Est. Priority Date: 01/24/2003
  • Status: Active Grant
First Claim
Patent Images

1. A wind turbine generator comprising:

  • a blade pitch control system to vary a pitch of one or more blades;

    a turbine controller coupled with the blade pitch control system;

    a first power source coupled with the turbine controller and with the blade pitch control system to provide power during a first mode of operation; and

    an uninterruptible power supply coupled to the turbine controller and with the blade pitch control system to provide power during a low voltage event;

    wherein the turbine controller causes the blade pitch control system to vary the pitch of the one or more blades in response to the transition in response to detection of a transition from the first mode of operation.

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