Patents by Inventor Michael JONS

Michael JONS 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).

  • High voltage direct current, HVDC, converter and a method for handling a fault in such converter
    Patent number: 12726015
    Abstract: A method for handling a fault in a High Voltage Direct Current, HVDC, converter (1) is provided. The method comprises operating a switch arrangement (120) of a plurality of cells (100) operating in an active mode so as to convert High Voltage Alternating Current, HVAC, to HVDC or HVDC to HVAC, while arranging the switch arrangement of each of the cells operating in the inactive mode to bypass the energy storage of the cell, in response to an error indication for a cell operating in the active mode, switching the cell from operating in the active mode to operate in the inactive mode, and in response to a recovery indication for the cell operating in the inactive mode, switching the cell from operating in the inactive mode to operate in the active mode.
    Type: Grant
    Filed: October 28, 2021
    Date of Patent: September 1, 2026
    Assignee: HITACHI ENERGY LTD
    Inventors: Jimmy Öhman, Ying Jiang Häfner, Johan Österberg, Michael Jons
  • A HIGH VOLTAGE DIRECT CURRENT, HVDC, CONVERTER AND A METHOD FOR HANDLING A FAULT IN SUCH CONVERTER
    Publication number: 20260163355
    Abstract: A method for handling a fault in a High Voltage Direct Current, HVDC, converter (1) is provided. The method comprises operating a switch arrangement (120) of a plurality of cells (100) operating in an active mode so as to convert High Voltage Alternating Current, HVAC, to HVDC or HVDC to HVAC, while arranging the switch arrangement of each of the cells operating in the inactive mode to bypass the energy storage of the cell, in response to an error indication for a cell operating in the active mode, switching the cell from operating in the active mode to operate in the inactive mode, and in response to a recovery indication for the cell operating in the inactive mode, switching the cell from operating in the inactive mode to operate in the active mode.
    Type: Application
    Filed: October 28, 2021
    Publication date: June 11, 2026
    Inventors: Jimmy ÖHMAN, Ying-Jiang HAFNER, Johan OSTERBERG, Michael JONS