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Patent Searching and Data


Title:
SYSTEM FOR SEAMLESS POWER CONVERSION IN DC POWER DISTRIBUTION
Document Type and Number:
WIPO Patent Application WO/2019/156346
Kind Code:
A1
Abstract:
The present invention relates to a system for seamless power conversion in DC power distribution, in which a slave power conversion device is quickly switched to a master power conversion device when a fault occurs in the master power conversion device for DC power distribution so as to perform seamless voltage control. A system for seamless power conversion in DC power distribution according to an embodiment of the present invention is a power conversion system comprising a plurality of power conversion devices connected in parallel to convert an AC voltage into a DC voltage between an AC power distribution network and a DC power distribution network, wherein a master power conversion device among the plurality of power conversion devices converts an AC voltage supplied from the AC power distribution network into a DC voltage including a predetermined magnitude of AC voltage, and supplies the converted DC voltage to a DC power distribution line of the DC distribution network; and the remaining devices functioning as slave power conversion devices among the plurality of power conversion devices detect the DC voltage of the DC power distribution line in real time, and when an AC voltage is not detected from the detected DC voltage, one of the remaining slave power conversion devices switches to the master power conversion device.

Inventors:
KIM, Hyun Jun (1110-1802, 17 Seochangnam-ro,Namdong-gu, Incheon, 21618, KR)
BAEK, Yo Han (102-601, 54 Dongnimmun-ro 8-gil,Seodaemun-gu, Seoul, 03743, KR)
Application Number:
KR2018/016414
Publication Date:
August 15, 2019
Filing Date:
December 21, 2018
Export Citation:
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Assignee:
HYOSUNG HEAVY INDUSTRIES CORPORATION (Mapo-daero 119, Mapo-gu, Seoul, 04144, KR)
International Classes:
H02M7/23; H02J9/06
Foreign References:
KR101650010B12016-09-08
JP2015006014A2015-01-08
JPH06327147A1994-11-25
JP2007228666A2007-09-06
KR20120005801A2012-01-17
Attorney, Agent or Firm:
NAMCHON PATENT AND LAW FIRM (#406, Doryeom Bldg37, Saemunanro5-,gil,Jongno-gu, Seoul, 03173, KR)
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