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Title:
POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/139714
Kind Code:
A1
Abstract:
This power supply system supplies electric power to an external load.　The power supply system comprises: a DC power supply unit for generating DC electric power; an AC power supply unit for generating AC electric power; a power storage unit including a first power storage device and a second power storage device; and a switching unit connected to the DC power supply unit, the AC power supply unit, the first power storage device, the second power storage device, and the load.　The connection state of the switching unit switches between a first state in which the AC power supply unit and the load are connected, a second state in which the second power storage device and the load are connected, a third state in which the DC power supply unit and the load are connected, and a fourth state in which the first power storage device and the load are connected.　When the switching unit is in the first and/or second state, electric power is supplied from the DC power supply unit to the first power storage device. When the switching unit is in the third and/or fourth state, the connection state of the DC power supply unit, the AC power supply unit, the first power storage device, the second power storage device, and the switching unit is switched such that electric power is supplied from the AC power supply unit to the second power storage device.

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Inventors:
KONDO TOYOSHI (JP)
Application Number:
PCT/JP2022/001933
Publication Date:
July 27, 2023
Filing Date:
January 20, 2022
Export Citation:
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Assignee:
TATSUMI RYOKI CO LTD (JP)
International Classes:
H02J7/00; H02J3/38; H02J7/34
Foreign References:
JP2016541229A2016-12-28
US20080102329A12008-05-01
US20210104764A12021-04-08
Attorney, Agent or Firm:
NONAKA, Takeshi (JP)
Download PDF:
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