Title:
DC POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/138710
Kind Code:
A1
Abstract:
The present invention provides a DC power supply system which does not increase the number of times of charging/discharging of a battery, even when a DC load is connected to a DC bus line. The present invention is provided with: a DC bus line 5 which can be connected to a DC load 6; a power generation device 1 for supplying power to the DC bus line 5; a secondary battery 3 which can supply power to the DC bus line 5; a DC-AC inverter 8 which is connected between the DC bus line 5 and a power system 10, inverts, to an AC output, a DC output supplied from the DC bus line 5, and converts, to a DC output, an AC output supplied from the power system 10; and a control unit 7 which controls power to be supplied to the DC bus line 5 from each of the power generation device 1, the secondary battery 3, and the DC to AC inverter 8, wherein when the power supplied from the power generation device 1 does not satisfy a power supply requirement for the DC load, the control unit 7 controls, in priority to the secondary battery 3, the DC-AC inverter 8 to allow the power system to supply the power to the DC load 6 through the DC bus line 5.
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Inventors:
ISHIKURA YUKI (JP)
TAGAWA SHUICHI (JP)
TAGAWA SHUICHI (JP)
Application Number:
PCT/IB2018/050994
Publication Date:
August 02, 2018
Filing Date:
February 19, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02J1/00; H01M10/44; H02J7/00; H02J7/32; H02J7/34; H02J7/35
Domestic Patent References:
| WO2011152512A1 | 2011-12-08 |
Foreign References:
| JP2013138539A | 2013-07-11 | |||
| JP2018019577A | 2018-02-01 | |||
| JP2016015803A | 2016-01-28 | |||
| JP2012115115A | 2012-06-14 |
Attorney, Agent or Firm:
SAMEJIMA, Mutsumi et al. (JP)
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