Patents by Inventor Radoslaw JEZ

Radoslaw JEZ 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).

  • Power electronic tap changer module for transformer
    Patent number: 10861642
    Abstract: The subject of the application is a power electronic tap changer module for transformer using power electronic elements connected to sections of a primary winding of the transformer. The power electronic tap changer module is equipped with valves having a pair of a thyristor or transistors connected with a controller and the valves are connected in series with the fuses, respectively. The module is equipped with an additional oversized tap line having an oversized valve rated for short circuit current, which valve is connected with an overvoltage triggering circuit. The oversized valve is equipped with a pair of thyristor or transistors connected with a thermally protected voltage suppressing device.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: December 8, 2020
    Assignee: ABB Schweiz AG
    Inventors: Pawel Aloszko, Filip Grecki, Radoslaw Jez, Krzysztof Obrebski, Marcin Czopek, Magdalena Ostrogorska
  • Power transmission arrangement and method for operating a power transmission arrangement
    Patent number: 10097002
    Abstract: Embodiments are generally based on employing a power transmission line in a HVDC link to provide auxiliary power to one of the ends of the HVDC link for facilitating a black start thereof when the HVDC link is de-energized, i.e. when at least one of the HVDC converter stations is de-energized and there is no transmission of power between inverter and rectifier HVDC converter stations on each side of the HVDC link. A relatively small amount of power can be conveyed towards one of the HVDC converter stations via the power transmission line so as to provide power to any auxiliary system(s) of the converter station, for example prior to a black start of the converter station being carried out.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: October 9, 2018
    Assignee: ABB SCHWEIZ AG
    Inventors: Göran Brorsson, Hongbo Jiang, Marcin Szewczyk, Mats Hyttinen, Michal Lazarczyk, Pawel Dawidowski, Radoslaw Jez, Wojciech Piasecki
  • POWER TRANSMISSION ARRANGEMENT AND METHOD FOR OPERATING A POWER TRANSMISSION ARRANGEMENT
    Publication number: 20180175622
    Abstract: Embodiments are generally based on employing a power transmission line in a HVDC link to provide auxiliary power to one of the ends of the HVDC link for facilitating a black start thereof when the HVDC link is de-energized, i.e. when at least one of the HVDC converter stations is de-energized and there is no transmission of power between inverter and rectifier HVDC converter stations on each side of the HVDC link. A relatively small amount of power can be conveyed towards one of the HVDC converter stations via the power transmission line so as to provide power to any auxiliary system(s) of the converter station, for example prior to a black start of the converter station being carried out.
    Type: Application
    Filed: June 30, 2015
    Publication date: June 21, 2018
    Applicant: ABB SCHWEIZ AG
    Inventors: Göran BRORSSON, Hongbo JIANG, Marcin SZEWCZYK, Mats HYTTINEN, Michal LAZARCZYK, Pawel DAWIDOWSKI, Radoslaw JEZ, Wojciech PIASECKI