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公开(公告)号：US20240072528A1
公开(公告)日：2024-02-29
申请号：US18272574
申请日：2021-02-05
Inventor： Tatsuo KOGA , Keita KANAMORI , Kazunori KIDERA , Yoshio MITSUTAKE
CPC classification number: H02H1/0015 , G01R31/12 , H02H7/20 , H02S50/10
Abstract: An arc detection device that detects an arc fault that occurs in a transmission line connecting a DC power supply that generates DC power and a power converter that converts the DC power to AC power, includes: a first determination unit that determines whether or not there is a possibility of an arc fault occurrence according to current flowing in the transmission line; a shutoff unit that temporarily stops the flow of current in the transmission line when the first determination unit determines there is a possibility of an arc fault occurrence; and a second determination unit that determines whether or not an arc fault has occurred according to an input voltage, of the power converter supplied from the DC power supply, after lifting temporary stoppage of the flow of current in the transmission line.
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公开(公告)号：US20230099131A1
公开(公告)日：2023-03-30
申请号：US17908987
申请日：2021-03-03
Inventor： Tatsuo KOGA , Yoshio MITSUTAKE , Keita KANAMORI
Abstract: An arc detection device includes a voltage detector connected between a first wire and a second wire to detect a voltage between the first wire and the second wire, the first wire connecting a positive electrode of a DC/DC converter and a plurality of DC/DC converters and branching from the positive electrode of the DC power source into the plurality of DC/DC converters, the second wire connecting a negative electrode of the DC/DC converter and the plurality of DC/DC converters and branching from the negative electrode of the DC/DC converter into the plurality of DC/DC converters; and an arc determiner that determines an occurrence of an arc based on the voltage detected by the voltage detector.
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