Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
DC POWER INTERCONNECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/144839
Kind Code:
A1
Abstract:
[Problem] Although a secondary battery for use in a power grid having a DC power system is preferably adaptable to float charging, the float charging causes a vicious circle of an increase in battery temperature, a reduction in battery internal resistance, an increase in charging current, and a further increase in the battery temperature, leading to deterioration of battery performance. [Solution] This DC power interconnection system is provided with: a transformer that has a secondary wiring wire; a bidirectional inverter or a DC converter connected to the secondary wiring wire; and a hydrogen battery that is connected to the DC converter or the bidirectional inverter, that has hydrogen gas sealed therein, that uses hydrogen as a negative electrode active material, and that has equal voltage at the time of charging end and at the time of discharging start. This DC power interconnection system can prevent deterioration of battery performance caused by float charging.

Inventors:
TSUTSUMI KADUO (JP)
Application Number:
PCT/JP2019/000653
Publication Date:
July 16, 2020
Filing Date:
January 11, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
EXERGY POWER SYSTEMS INC (JP)
International Classes:
H02J3/32; H01M10/24; H02J3/38; H02J7/34
Foreign References:
JP2017182947A2017-10-05
JP2015225826A2015-12-14
US20100090532A12010-04-15
JPH06295746A1994-10-21
JP2015164378A2015-09-10
JP2017011855A2017-01-12
Attorney, Agent or Firm:
KAJIMA, Takashi (JP)
Download PDF: