Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DC POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/155507
Kind Code:
A1
Abstract:
The present invention reduces variation in lifetimes of a plurality of storage batteries. The present invention is provided with: a power conditioner 4b that supplies generated power W2 of a power generation apparatus 3b to a DC bus 2; DC/DC converters 5a, 5b that perform voltage conversion for a bus voltage Vbs and supply load power (WLa+WLb) to load devices 71a, 71b; bidirectional DC/DC converters 142-14n that supply DC constant current from the DC bus 2 to storage batteries 112-11n or from the storage batteries 112-11n to the DC bus 2; and a power management apparatus 9. When the generated power W2 is higher than the load power (WLa+WLb), the power management apparatus 9 causes the converters 142-14n to supply DC constant current to the storage batteries 112-11n at a common charge rate for performing charging thereon. When the generated power W2 is lower than the load power (WLa+WLb), the power management apparatus 9 causes the converters 142-14n to supply DC constant current from the storage batteries 112-11n to the DC bus 2 at a common discharge rate for performing discharging therefrom.

Inventors:
UTO HISAKAZU (JP)
Application Number:
JP2018/003920
Publication Date:
August 15, 2019
Filing Date:
February 06, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TDK CORP (JP)
International Classes:
H02J1/00; H02J7/34
Domestic Patent References:
WO2015147171A12015-10-01
Foreign References:
JP2014207790A2014-10-30
JP2017189005A2017-10-12
JP2012205488A2012-10-22
JP2014045625A2014-03-13
JP2009131143A2009-06-11
Attorney, Agent or Firm:
SAKAI Shinji (JP)
Download PDF: