Patents by Inventor JUN BUM KWON

JUN BUM KWON 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).

  • Test circuit for thyristor valve in HVDC system
    Patent number: 9500696
    Abstract: Provided is a synthetic test circuit for synthetic-testing a thyristor valve in high voltage direct current (HVDC). A resonant circuit applies forward DC current, a reverse DC voltage, and a forward DC voltage to synthetic-test the thyristor valve. A current generation unit generates DC current that is above a reference current value to supply the generated DC current into the resonant circuit. A voltage generates unit generating a DC voltage that is above a reference voltage value to supply the generated DC voltage into the resonant circuit. The resonant circuit includes a charging auxiliary valve for charging a gate driver of the thyristor valve.
    Type: Grant
    Filed: July 3, 2014
    Date of Patent: November 22, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Jun Bum Kwon, Teag Sun Jung, Seung Taek Baek, Wook Hwa Lee, Yong Ho Chung
  • HVDC valve tower
    Patent number: 9331485
    Abstract: Disclosed is a HVDC valve tower. The HVDC valve tower includes cylindrical valve module loading part, a valve module loaded on the valve module loading part, and a crane disposed at a center of the valve module loading part to be rotatable.
    Type: Grant
    Filed: April 17, 2014
    Date of Patent: May 3, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Young Woo Kim, Yong Ho Chung, Wook Hwa Lee, Seung Taek Baek, Teag Sun Jung, Jun Bum Kwon
  • SYNTHETIC TEST CIRCUIT FOR THYRISTOR VALVE IN HVDC TRANSMISSION
    Publication number: 20150102834
    Abstract: Provided is a synthetic test circuit for synthetic-testing a thyristor valve in high voltage direct current (HVDC). A resonant circuit applies forward DC current, a reverse DC voltage, and a forward DC voltage to synthetic-test the thyristor valve. A current generation unit generates DC current that is above a reference current value to supply the generated DC current into the resonant circuit. A voltage generates unit generating a DC voltage that is above a reference voltage value to supply the generated DC voltage into the resonant circuit. The resonant circuit includes a charging auxiliary valve for charging a gate driver of the thyristor valve.
    Type: Application
    Filed: July 3, 2014
    Publication date: April 16, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Jun Bum KWON, Teag Sun JUNG, Seung Taek BAEK, Wook Hwa LEE, Yong Ho CHUNG
  • HVDC VALVE TOWER
    Publication number: 20140321095
    Abstract: Disclosed is a HVDC valve tower. The HVDC valve tower includes cylindrical valve module loading part, a valve module loaded on the valve module loading part, and a crane disposed at a center of the valve module loading part to be rotatable.
    Type: Application
    Filed: April 17, 2014
    Publication date: October 30, 2014
    Applicant: LSIS CO., LTD.
    Inventors: Young Woo KIM, YONG HO CHUNG, WOOK HWA LEE, SEUNG TAEK BAEK, TEAG SUN JUNG, JUN BUM KWON