Title:
DC POWER DISTRIBUTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/205801
Kind Code:
A1
Abstract:
The present invention suppresses the rise of device cost in a DC power distribution system capable of disconnecting, from an output path, a power distribution line in which a ground fault accident has occurred. This DC power distribution system is provided with: a plurality of power conversion devices (41, 42); one DC bus line (60); a plurality of power distribution lines; a plurality of first current breaking units (11, 12) respectively connected to the input sides of the plurality of power conversion devices; a plurality of second current breaking units (21, 22) respectively connected between the plurality of power conversion devices and the DC bus line; and a plurality of third current breaking units (31, 32, 33) with which the plurality of power distribution lines are respectively provided. The breaking current value of the plurality of third current breaking units is set to a smaller value than the maximum allowable current value of a power conversion device in which short-circuit current reaches the maximum allowable current value in the shortest time.
Inventors:
FUKUNO KENICHI (JP)
TAKEUCHI HAYATO (JP)
ISHIBASHI TAKAHARU (JP)
JIMICHI TAKUSHI (JP)
TAKEUCHI HAYATO (JP)
ISHIBASHI TAKAHARU (JP)
JIMICHI TAKUSHI (JP)
Application Number:
PCT/JP2021/009210
Publication Date:
October 14, 2021
Filing Date:
March 09, 2021
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
H02H3/00; H02H3/16; H02J1/00; H02J1/12; H02M3/155; H02M3/28; H02M7/06; H02M7/08; H02M7/12
Foreign References:
| JP2008029044A | 2008-02-07 | |||
| JP2015164374A | 2015-09-10 | |||
| JP2015163032A | 2015-09-07 | |||
| JP2018046642A | 2018-03-22 |
Attorney, Agent or Firm:
PALMO PATENT FIRM, P.C. (JP)
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