Title:
POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2020058113
Kind Code:
A
Abstract:
To provide a power supply system in which a fluctuation of a current in a capacity-type battery generated while the capacity-type battery and a power-type battery are connected with each other via a current wire can be minimized.SOLUTION: The power supply system includes a plurality of first storage batteries (e.g., power-type batteries), a plurality of motors that are provided so as to correspond to the plurality of first storage batteries, a plurality of inverters that are provided so as to correspond to the plurality of motors, a second storage battery (e.g., capacity-type battery) that is connected to the plurality of first storage batteries via switches and that has a capacity larger than that of each of the first storage batteries, and a control unit that controls an on/off state of each of the switches such that a fluctuation of a current regarding the second storage battery is reduced.SELECTED DRAWING: Figure 1
Inventors:
INOUE TAKESHI
KOMATSU DAIKI
MAKINO SHIGEKI
KOMATSU DAIKI
MAKINO SHIGEKI
Application Number:
JP2018185833A
Publication Date:
April 09, 2020
Filing Date:
September 28, 2018
Export Citation:
Assignee:
HITACHI LTD
International Classes:
H02J7/00; B60L3/00; B60L50/40; B60L50/50; B60L53/00; B60L55/00; B60L58/00; H02J1/00; H02J7/02; H02P5/46; H02P23/06
Attorney, Agent or Firm:
Patent Business Corporation Sunnext International Patent Office