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Patent Searching and Data


Title:
POWER SUPPLY SYSTEM FOR ELECTRIC MOTOR CAR
Document Type and Number:
WIPO Patent Application WO/2019/208383
Kind Code:
A1
Abstract:
A power supply system for an electric motor car according to an embodiment has a first terminal, a second terminal, and a conversion unit. The first terminal is electrically connected to an electricity-storage device provided in a train of electric motor cars or to an overhead contact line. The second terminal is electrically connected to a train line to which a plurality of electric motors and a self-power supply device in the train and an external power supply device are also electrically connected. The conversion unit, in a first operation state, takes from the second terminal a first electric power supplied from the plurality of electric motors and the external power supply device, generates a DC voltage at the first terminal by a regenerative operation of the conversion unit, and charges the electricity-storage device. The conversion unit, in a second operation state, takes from the first terminal a second electric power supplied from the electricity-storage device or the overhead contact line, converts part of the second electric power into a third electric power by a powering operation of the conversion unit, and outputs the third electric power from the second terminal, thereby performing electric power conversion.

Inventors:
FUJITA Tsunehito (72-34 Horikawa-cho, Saiwai-ku, Kawasaki-sh, Kanagawa 13, 〒2120013, JP)
SHIRASAWA Yuki (72-34 Horikawa-cho, Saiwai-ku, Kawasaki-sh, Kanagawa 13, 〒2120013, JP)
Application Number:
JP2019/016617
Publication Date:
October 31, 2019
Filing Date:
April 18, 2019
Export Citation:
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Assignee:
KABUSHIKI KAISHA TOSHIBA (1-1 Shibaura 1-chome, Minato-ku Tokyo, 23, 〒1050023, JP)
TOSHIBA INFRASTRUCTURE SYSTEMS & SOLUTIONS CORPORATION (72-34, Horikawa-cho Saiwai-ku, Kawasaki-sh, Kanagawa 13, 〒2120013, JP)
International Classes:
B60L9/18; B60L7/16; B60L13/00; B61C3/02; H02J7/00; H02J7/10
Domestic Patent References:
WO2015001621A12015-01-08
Foreign References:
JP2010252524A2010-11-04
JPH08251835A1996-09-27
JP2012037359A2012-02-23
JPH10174202A1998-06-26
JP2006174573A2006-06-29
JP2016226187A2016-12-28
JP2013211964A2013-10-10
Attorney, Agent or Firm:
SHIGA INTERNATIONAL PATENT OFFICE (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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