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Patent Searching and Data


Title:
POWER CONVERSION SYSTEM, HOIST SYSTEM, AND POWER CONVERSION METHOD
Document Type and Number:
WIPO Patent Application WO/2019/159263
Kind Code:
A1
Abstract:
A power conversion system 20 comprising: a power conversion unit 30 having a matrix converter circuit 111 for AC–AC conversion and an inverter circuit 214 for DC–AC conversion and converting power in both directions between a primary side and a secondary side; a power supply switching unit 40 that switches between a normal state and an emergency state, said normal state having a power grid 2 connected to the primary side of the power conversion unit 30 and said emergency state having an uninterruptible power supply device 3, that is different from the power grid 2, connected to the primary side of the power conversion unit 30; and an output switching unit 31 that, in accordance with the switching between the normal state and the emergency state, switches between an AC–AC conversion state in which the matrix converter circuit 111 is connected between the primary side and the secondary side and a DC–AC conversion state in which the inverter circuit 214 is connected between the primary side and the secondary side.

Inventors:
HANADA Toshihiro (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
SATO Mitsunori (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
AKIMOTO Shinichi (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
INOKI Keisei (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
MORIHARA Takayuki (2-1 Kurosaki-Shiroishi, Yahatanishi-ku, Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
Application Number:
JP2018/005110
Publication Date:
August 22, 2019
Filing Date:
February 14, 2018
Export Citation:
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Assignee:
KABUSHIKI KAISHA YASKAWA DENKI (2-1 Kurosaki-Shiroishi, Yahatanishi-ku Kitakyushu-sh, Fukuoka 04, 〒8060004, JP)
International Classes:
H02M5/02; H02J9/06; H02M5/27; H02M5/293; H02M5/297
Domestic Patent References:
WO2016157391A12016-10-06
Foreign References:
JP2006129614A2006-05-18
JP2007221844A2007-08-30
JP2005218199A2005-08-11
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl. 1-1, Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
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