Title:
DC CURRENT BREAKER
Document Type and Number:
WIPO Patent Application WO/2024/084643
Kind Code:
A1
Abstract:
A DC current breaker according to the embodiment includes a plurality of DC transmission lines, a first DC bus, a second DC bus, an interruption and consumption unit, a commutation circuit, and a control unit. Each of DC transmission lines branches, at a predetermined branch point, to a first auxiliary line provided with a first mechanical contact and a second auxiliary line provided with a second mechanical contact. The plurality of first auxiliary lines are connected to the first DC bus. The plurality of second auxiliary lines are connected to the second DC bus. The interruption and consumption unit has a semiconductor breaker capable of interrupting a current flowing through the DC transmission line and an energy-consuming element that consumes energy at least between the two ends of the semiconductor breaker. The commutation circuit commutates the current flowing through the DC transmission line to the interruption and consumption unit. The control unit controls the first mechanical contact, the second mechanical contact, the semiconductor breaker, and the commutation circuit.
Inventors:
HAMAJIMA SHINNOSUKE (JP)
KOYAMA YUSHI (JP)
ISHIGURO TAKAHIRO (JP)
KOYAMA YUSHI (JP)
ISHIGURO TAKAHIRO (JP)
Application Number:
PCT/JP2022/039054
Publication Date:
April 25, 2024
Filing Date:
October 20, 2022
Export Citation:
Assignee:
KK TOSHIBA (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
H01H9/54; H01H33/59
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (JP)
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