Patents by Inventor EPAMEINONDAS KONTOS

EPAMEINONDAS KONTOS 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).

  • Method for the fault management of a fault in a DC voltage line and converter assembly for carrying out the method
    Patent number: 11456592
    Abstract: A method manages a fault on a DC voltage side of a converter assembly including a modular multistage converter with switching modules having semiconductor switches and an energy store. Some switching modules are a first type and others are a second type. During operation, a positive switching module voltage, negative switching module voltage or zero voltage are generated at terminals of switching modules of the first type, and a positive switching module voltage or zero voltage are generated at terminals of switching modules of the second type. Upon detecting a DC voltage side fault, switching modules of the first type are actuated such that the polarity of their energy store voltages corresponds to the polarity of a fault current, and energy stores of switching modules of the first type are charged to a voltage exceeding their rated voltage. A converter assembly carrying out the method is also provided.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: September 27, 2022
    Assignee: Siemens Energy Global GmbH & Co. KG
    Inventors: Epameinondas Kontos, Kilian Dallmer-Zerbe, Dominik Ergin, Ilhom Gafur, Sebastian Semmler
  • METHOD FOR THE FAULT MANAGEMENT OF A FAULT IN A DC VOLTAGE LINE AND CONVERTER ASSEMBLY FOR CARRYING OUT THE METHOD
    Publication number: 20200343717
    Abstract: A method manages a fault on a DC voltage side of a converter assembly including a modular multistage converter with switching modules having semiconductor switches and an energy store. Some switching modules are a first type and others are a second type. During operation, a positive switching module voltage, negative switching module voltage or zero voltage are generated at terminals of switching modules of the first type, and a positive switching module voltage or zero voltage are generated at terminals of switching modules of the second type. Upon detecting a DC voltage side fault, switching modules of the first type are actuated such that the polarity of their energy store voltages corresponds to the polarity of a fault current, and energy stores of switching modules of the first type are charged to a voltage exceeding their rated voltage. A converter assembly carrying out the method is also provided.
    Type: Application
    Filed: April 29, 2020
    Publication date: October 29, 2020
    Inventors: EPAMEINONDAS KONTOS, KILIAN DALLMER-ZERBE, DOMINIK ERGIN, ILHOM GAFUR, SEBASTIAN SEMMLER