Title:
MODULAR MULTILEVEL CONVERTER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/124519
Kind Code:
A1
Abstract:
The present invention relates to an MMC converter system which can quickly cut off fault current by installing a plurality of disconnecting switch units on a line connected between two MMC converter devices. A modular multilevel converter (MMC) system according to the present invention comprises: a first MMC converter device including a plurality of serially connected sub modules; a second MMC converter device including a plurality of serially connected sub modules; a first disconnecting switch unit installed on a line between the first and second MMC converter devices; and a second disconnecting switch unit connected in series to the first disconnecting switch unit on the line, wherein each of the first and second disconnecting switch units comprises a mechanical switch installed on the line so as to open and close the line and a diode connected in parallel to the mechanical switch, and the two diodes are installed in opposite directions to each other.
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| JPS52140262 | THYRISTOR CIRCUIT |
Inventors:
KIM HEE JIN (KR)
HUR KYEON (KR)
LEE DONG SU (KR)
KANG JAE SIK (KR)
JUNG JU YONG (KR)
KIM SANG MIN (KR)
NA JONG SEO (KR)
HUR KYEON (KR)
LEE DONG SU (KR)
KANG JAE SIK (KR)
JUNG JU YONG (KR)
KIM SANG MIN (KR)
NA JONG SEO (KR)
Application Number:
PCT/KR2017/014161
Publication Date:
July 05, 2018
Filing Date:
December 05, 2017
Export Citation:
Assignee:
HYOSUNG CORP (KR)
KIM HEE JIN (KR)
HUR KYEON (KR)
KIM HEE JIN (KR)
HUR KYEON (KR)
International Classes:
H02M1/32; H02M1/00; H02M7/483
Foreign References:
| US20030183838A1 | 2003-10-02 | |||
| EP2525483A1 | 2012-11-21 | |||
| US20150357931A1 | 2015-12-10 |
Other References:
SON, GEUM TAE ET AL.: "Modular Multilevel Converter (MMC) for HVDC", THE KOREAN INSTITUTE OF ELECTRICAL ENGINEERS (KIEE) ELECTRICAL MACHINERY & ENERGY CONVERSION SYSTEM SOCIETY FALL CONFERENCE, October 2011 (2011-10-01), pages 8 - 10, Retrieved from the Internet
KHAN, TIMER AMIR ET AL.: "Feasibility Analysis of a Novel Hybrid-type Superconducting Circuit Breaker in Multi-terminal HVDC Networks", PHYSICA C: SUPERCONDUCTIVITY AND ITS APPLICATIONS, vol. 518, 15 November 2015 (2015-11-15), pages 154 - 158, XP055516966, Retrieved from the Internet
KHAN, TIMER AMIR ET AL.: "Feasibility Analysis of a Novel Hybrid-type Superconducting Circuit Breaker in Multi-terminal HVDC Networks", PHYSICA C: SUPERCONDUCTIVITY AND ITS APPLICATIONS, vol. 518, 15 November 2015 (2015-11-15), pages 154 - 158, XP055516966, Retrieved from the Internet
Attorney, Agent or Firm:
NAMCHON PATENT AND LAW FIRM (KR)
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