Patents by Inventor John Godsk Nielen

John Godsk Nielen 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).

  • Publication number: 20180112647
    Abstract: A method, converter arrangement, and controller are disclosed for connecting an output of a converter with an electrical grid to control inrush currents into a grid filter assembly connected with the output of the converter, the electrical grid carrying an alternating current (AC) signal having one or more phases. The method includes determining a voltage of the AC signal and operating, after pre-charging a direct current (DC) link of the converter to a predetermined voltage, the converter using open-loop voltage control to produce an AC output signal that substantially matches the AC signal of the electrical grid. The open-loop voltage control is based on the determined voltage of the AC signal. The method further includes closing, after a predetermined amount of time of operating the converter using the open-loop voltage control, a switching device to thereby connect the output of the converter with the electrical grid.
    Type: Application
    Filed: June 8, 2016
    Publication date: April 26, 2018
    Inventors: Tusitha ABEYASEKERA, Duy Duc DOAN, Gert Karmisholt ANDERSEN, Lars HELLE, Søren ANDERSEN, Tune Pedersen, John Godsk Nielen