Patents by Inventor Bong Eon Kho

Bong Eon Kho 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).

  • Multi-pulse HVDC system using auxiliary circuit
    Patent number: 7061743
    Abstract: The present invention relates to a multi-pulse HVDC system which is capable of minimizing the number of thyristors by providing a thyristor auxiliary circuit in a conventional 12-pulse thyristor HVDC(High Voltage Direct Current), not using an additional stack of a thyristor and which is implemented based on an auxiliary circuit having a multi-pulse thyristor HVDC system like 24-pulse/36-pulse/48-pulse converters. The multi-pulse HVDC system is characterized in that an upper side thyristor converter 12 and a lower side thyristor converter 13 are installed in a ?-?-Y transformer 11, and two current smoothing reactor 39 and a direct voltage dividing condenser 38 are installed between the upper side thyristor converter 12 and the lower side thyristor converter 13, and two thyristors 32, 33: T2 and T1 are connected to one double winding transformer 31.
    Type: Grant
    Filed: January 15, 2003
    Date of Patent: June 13, 2006
    Assignee: Korea Electric Power Corporation
    Inventors: Chan Ki Kim, Gil Jo Jung, Bong Eon Kho, Yong Ho An, Se Hwan Choi, Jong Ki Choi, Byeong Mo Yang
  • Multi-pulse HVDC system using auxiliary circuit
    Publication number: 20040085703
    Abstract: The present invention relates to a multi-pulse HVDC system which is capable of minimizing the number of thyristors by providing a thyristor auxiliary circuit in a conventional 12-pulse thyristor HVDC(High Voltage Direct Current), not using an additional stack of a thyristor and which is implemented based on an auxiliary circuit having a multi-pulse thyristor HVDC system like 24-pulse/36-pulse/48-pulse converters. The multi-pulse HVDC system is characterized in that an upper side thyristor converter 12 and a lower side thyristor converter 13 are installed in a &Dgr;-&Dgr;-Y transformer 11, and two current smoothing reactor 39 and a direct voltage dividing condenser 38 are installed between the upper side thyristor converter 12 and the lower side thyristor converter 13, and two thyristors 32, 33: T2 and T1 are connected to one double winding transformer 31.
    Type: Application
    Filed: January 15, 2003
    Publication date: May 6, 2004
    Inventors: Chan Ki Kim, Gil Jo Jung, Bong Eon Kho, Yong Ho An, Se Hwan Choi, Jong Ki Choi, Byeong Mo Yang