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Title:
DC POWER SUPPLY AND POWER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/157922
Kind Code:
A1
Abstract:
The present invention transforms an unstable DC power generated by such as the renewable energy of, for example, solar power generation and having a fluctuating output and a DC power obtained from system AC power to a stable DC power using a storage battery and supplies the stable DC power to a load using an already-existing AC wiring system, thereby making it possible to obtain an inexpensive and highly efficient power system that can be safely used without the occurrence of arc discharge. The DC power supply according to the present invention smooths, by connecting a storage battery in parallel with each single circuit or a composite circuit, the DC voltages of an unstable DC power generated by such as the renewable energy of, for example, solar power generation and having a fluctuating output and a DC power obtained by rectifying system AC power by a rectifier or the like and having an unstable voltage, thereby supplying a stable DC power.

Inventors:
TOHJI KAZUYUKI (JP)
UMEKI SENSHIN (JP)
Application Number:
JP2019/003408
Publication Date:
August 06, 2020
Filing Date:
January 31, 2019
Export Citation:
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Assignee:
UNIV TOHOKU (JP)
ENAGIA INC (JP)
International Classes:
H02J1/00; H02J7/35
Foreign References:
JP2006254694A2006-09-21
JPH04308431A1992-10-30
JP2002153067A2002-05-24
JP2018050457A2018-03-29
JP2014171309A2014-09-18
Attorney, Agent or Firm:
HARADA, Masaaki (JP)
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