Patents by Inventor Jan GRAUGAARD-JENSEN

Jan GRAUGAARD-JENSEN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Control of a wind turbine during recovery after a grid fault
    Patent number: 10677218
    Abstract: Embodiments of the present invention relate to control of a wind turbine during a recovery period after a grid fault. It is disclosed to operate a wind turbine during the recovery period to determine the actual pitch angle of the rotor blades and the actual wind speed, and based on that determining a desired pitch angle of the rotor blades, as well as a pitch ramp rate so that the actual pitch angle can be brought to match the desired pitch angle before the end of the recovery period. In embodiments, the steps performed in the recovery mode are repeated at intervals during the recovery period.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: June 9, 2020
    Assignee: VESTAS WIND SYSTEMS A/S
    Inventors: Martin Ansbjerg Kjær, Kasper Zinck Ostergaard, Jan Graugaard-Jensen
  • CONTROL OF A WIND TURBINE DURING RECOVERY AFTER A GRID FAULT
    Publication number: 20180320663
    Abstract: Embodiments of the present invention relate to control of a wind turbine during a recovery period after a grid fault. It is disclosed to operate a wind turbine during the recovery period to determine the actual pitch angle of the rotor blades and the actual wind speed, and based on that determining a desired pitch angle of the rotor blades, as well as a pitch ramp rate so that the actual pitch angle can be brought to match the desired pitch angle before the end of the recovery period. In embodiments, the steps performed in the recovery mode are repeated at intervals during the recovery period.
    Type: Application
    Filed: November 17, 2016
    Publication date: November 8, 2018
    Inventors: Martin Ansbjerg KJÆR, Kasper Zinck OSTERGAARD, Jan GRAUGAARD-JENSEN