Title:
DC FEEDING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/145999
Kind Code:
A1
Abstract:
The purpose of the present invention is to increase the lifetime of a plurality of storage batteries as a whole. This DC feeding system is provided with: power conditioners 4a, 4b which supply generated power from power-generating devices 3a, 3b onto a DC bus 2; storage batteries 111 to 11k; high cycle-characteristics storage batteries 11k+1 to 11n; bi-directional DC/DC converters 141 to 14k which perform power conversion between the generated power being supplied onto the DC bus 2 and charged power of the storage batteries 111 to 11k; bi-directional DC/DC converters 14k+1 to 14n which perform power conversion between the generated power and charged power of second storage batteries 11k+1 to 11n; DC/DC converters 5a, 5b which supply the generated power and the charged power to load apparatus 71a, 71b; and a power management device 9 which causes the converters 14k+1 to 14n to operate when the absolute value of a differential power between the generated power and a load power to the load apparatus 71a, 71b is greater than or equal to a power threshold value, and which causes the converters 141 to 14k to operate when the absolute value of the differential power is less than the power threshold value.
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Inventors:
MITSUNAGA TAKUMA (JP)
NAOI KATSUO (JP)
NAOI KATSUO (JP)
Application Number:
PCT/JP2018/001975
Publication Date:
August 01, 2019
Filing Date:
January 23, 2018
Export Citation:
Assignee:
TDK CORP (JP)
International Classes:
H02J7/34; H01M10/44; H01M10/48; H01M16/00; H02J1/00; H02J3/32; H02J7/35
Domestic Patent References:
| WO2014118903A1 | 2014-08-07 |
Foreign References:
| JP2011222427A | 2011-11-04 | |||
| JP2017529647A | 2017-10-05 | |||
| JP2000295784A | 2000-10-20 | |||
| JP2017212803A | 2017-11-30 | |||
| JP2014209821A | 2014-11-06 | |||
| JP2008182810A | 2008-08-07 |
Attorney, Agent or Firm:
SAKAI Shinji (JP)
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