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Title:
DC POWER FEEDING SYSTEM
Document Type and Number:
Japanese Patent JP2019193438
Kind Code:
A
Abstract:
To provide a DC power feeding system which makes a power source with the highest priority output power preferentially among power sources which can output power while keeping a voltage of a DC bus at a predetermined stable voltage.SOLUTION: A DC power feeding system 1 has a plurality of power sources 10, 20 and 30 connected to a DC bus from one end of a DC bus 100 to the other end in the higher order of the priority, and outputting DC power to the DC bus. The power sources 20 and 30 whose priorities are second and lower have power supply devices 21 and 31 supplying power, converters 22 and 32 converting power outputted by the power supply devices into DC power of a predetermined voltage, voltage sensors 26 and 36 detecting voltage of the DC bus, current sensors 27 and 37 detecting presence/absence of current flowing from the power source with higher priority in the DC bus, and power output portions 23 and 33 outputting the DC power converted by the converters to the DC bus.SELECTED DRAWING: Figure 1

Inventors:
HANEDA SHOJI
Application Number:
JP2018083963A
Publication Date:
October 31, 2019
Filing Date:
April 25, 2018
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD
International Classes:
H02J1/00; H02J7/00; H02J7/10
Attorney, Agent or Firm:
Takashiro Kojima
Noriko Kawai
Toshihiro Minami