Patents by Inventor WOONG HYUB SONG

WOONG HYUB SONG 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).

  • Modular multi-level converter controlling plurality of sub-modules
    Patent number: 9748856
    Abstract: Provided is a modular multi-level converter including a plurality of sub-modules including switching elements, a plurality of sub-control units respectively controlling the plurality of switching elements included in the plurality of sub-modules, and a central control unit which determines switching operation conditions of the plurality of sub-modules, and transmits control signals corresponding to the determined switching operation conditions to the plurality of sub-control units. Each of the plurality of sub-control units acquires state information on the sub-module controlled thereby and transmits the acquired state information to the central control unit.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: August 29, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Young Woo Kim, Woong Hyub Song
  • Modular multi-level converter
    Patent number: 9680392
    Abstract: Provided is a modular multi-level converter (MMC) including a plurality of sub-modules including switching elements, and a central control unit which assigns an address to each of the plurality of sub-modules for distinguishing each of the plurality of sub-modules, determines switching operation conditions of the plurality of sub-modules based on the assigned addresses, and outputs switching signals corresponding to the determined switching operation conditions. The central control unit determines a switching sequence of the plurality of the sub-modules according to the sequence of the assigned addresses.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: June 13, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Woong Hyub Song, Young Woo Kim
  • MODULAR MULTI-LEVEL CONVERTER
    Publication number: 20150333649
    Abstract: Provided is a modular multi-level converter including a plurality of sub-modules including switching elements, a plurality of sub-control units respectively controlling the plurality of switching elements included in the plurality of sub-modules, and a central control unit which determines switching operation conditions of the plurality of sub-modules, and transmits control signals corresponding to the determined switching operation conditions to the plurality of sub-control units. Each of the plurality of sub-control units acquires state information on the sub-module controlled thereby and transmits the acquired state information to the central control unit.
    Type: Application
    Filed: April 27, 2015
    Publication date: November 19, 2015
    Applicant: LSIS CO., LTD.
    Inventors: YOUNG WOO KIM, WOONG HYUB SONG
  • MODULAR MULTI-LEVEL CONVERTER
    Publication number: 20150333654
    Abstract: Provided is a modular multi-level converter (MMC) including a plurality of sub-modules including switching elements, and a central control unit which assigns an address to each of the plurality of sub-modules for distinguishing each of the plurality of sub-modules, determines switching operation conditions of the plurality of sub-modules based on the assigned addresses, and outputs switching signals corresponding to the determined switching operation conditions. The central control unit determines a switching sequence of the plurality of the sub-modules according to the sequence of the assigned addresses.
    Type: Application
    Filed: April 24, 2015
    Publication date: November 19, 2015
    Applicant: LSIS CO., LTD.
    Inventors: WOONG HYUB SONG, YOUNG WOO KIM