公开(公告)号：US20220373611A1

公开(公告)日：2022-11-24

申请号：US17881779

申请日：2022-08-05

Applicant: FURUKAWA ELECTRIC CO., LTD. ,  THE FURUKAWA BATTERY CO., LTD.

Inventor： Hideto NAKAMURA ,  Akira TANAKA ,  Masanobu ARAGAKI ,  Hideaki YOSHIDA ,  Wataru TEZUKA ,  Akihiro SATO

IPC: G01R31/392 ,  H01M10/44 ,  H01M10/48 ,  G01R31/3828 ,  H02J7/02

Abstract: A deterioration determination device for a storage battery system includes: a current sensor configured to, at a time of stopping charging or stopping discharging of storage batteries, measure circulation current generated among storage battery arrays in each of storage battery array blocks; a measurement control unit configured to collect a value of the circulation current measured by the current sensor; and a storage battery state determining unit configured to, from the collected value of the circulation current, determine whether or not there is deterioration of the storage batteries in the storage battery array blocks.

公开(公告)号：US20220294214A1

公开(公告)日：2022-09-15

申请号：US17804703

申请日：2022-05-31

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Masahiro RIKISO ,  Sumio KACHI ,  Hideto NAKAMURA ,  Kengo NAKAO

IPC: H02J1/10 ,  H02J7/34 ,  H02J7/00

Abstract: An electric power network includes: a plurality of power routers each including a plurality of power ports; a plurality of interconnection lines configured to connect the power routers in a grid manner via the power ports; and an electric power apparatus configured to consume or supply electric power, the electric power apparatus being connected to a power port that is included in at least one of the power routers and that is not connected to any of the interconnection lines. At least one of the power ports of each of the power routers is set as a dependent port for which characteristics of direct-current power to be input or output are not controlled.