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1. (WO2018138710) DC POWER SUPPLY SYSTEM

Pub. No.:    WO/2018/138710    International Application No.:    PCT/IB2018/050994
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Tue Feb 20 00:59:59 CET 2018
IPC: H02J 1/00
H01M 10/44
H02J 7/00
H02J 7/32
H02J 7/34
H02J 7/35
Applicants: MURATA MANUFACTURING CO., LTD.
株式会社村田製作所
Inventors: ISHIKURA, Yuki
石倉祐樹
TAGAWA, Shuichi
田川修市
Title: DC POWER SUPPLY SYSTEM
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.