公开(公告)号：US11158888B2

公开(公告)日：2021-10-26

申请号：US15752702

申请日：2017-01-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jun Yamasaki ,  Etsushi Aga

IPC: H01M10/44 ,  G01R31/392 ,  H02J7/02 ,  G01R31/3842 ,  H01M10/48 ,  H02J7/00 ,  G01R19/165 ,  H02J5/00 ,  H01M10/42

Abstract: A management device manages a plurality of power storage devices interconnected in parallel. In the management device, a halt controller halts an operation of at least one of the plurality of power storage devices during a period in which charged/discharged power between the plurality of power storage devices and a load is less than a set value. During the period in which the charged/discharged power is less than the set value, for example, the halt controller, by turns, halts an operation of one of the plurality of power storage devices at a set time interval.

公开(公告)号：US11056886B2

公开(公告)日：2021-07-06

申请号：US16615523

申请日：2018-04-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Masaki Kato ,  Naohisa Morimoto ,  Masaaki Kuranuki ,  Jun Yamasaki ,  Yohei Ishii ,  Koichi Sawada

IPC: H02J3/32 ,  H02J7/00 ,  H02J7/02 ,  H02J7/34 ,  H02M1/12 ,  H02M7/5387 ,  H01M10/42 ,  H01M10/48

Abstract: In a power storage system, a three-phase AC wire is connected to a three-phase AC power system. Power storage blocks, each of which includes a power storage module and a power conditioner, are connected in parallel to the three-phase AC wire. A system controller individually controls power storage blocks. The power storage modules each includes: a power storage unit; and a management unit that manages the power storage unit. The power conditioner includes a power converter and a controller. The power converter converts DC power discharged into single-phase AC power and outputs the converted AC power to two lines of the three-phase AC wire, or converts single-phase AC power received from the two lines of the three-phase AC wire into DC power and charges the power storage unit. The controller is connected to the system controller via a communication line and the management unit via a communication line.

公开(公告)号：US12071026B2

公开(公告)日：2024-08-27

申请号：US17145302

申请日：2021-01-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Jun Yamasaki ,  Changhui Yang ,  Masaharu Amaike ,  Takashi Iida

IPC: B60L15/20 ,  B60L3/00 ,  B60L50/50 ,  B60L58/12 ,  G01R31/36 ,  G01R31/374 ,  G01R31/3842 ,  G01R31/392 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J7/00

CPC classification number: B60L15/2081 ,  B60L3/0046 ,  B60L15/2045 ,  B60L50/50 ,  G01R31/3842 ,  G01R31/392 ,  H01M10/425 ,  H01M10/48 ,  H01M10/482 ,  H01M10/486 ,  H02J7/0063 ,  B60L2240/549 ,  B60L2240/642 ,  H01M2010/4271

Abstract: Controller determines an output limit value that defines an upper limit of a current or power recommended for suppressing cell deterioration based on a voltage, a current, and a temperature of each cell, and notifies host controller in electric vehicle of the determined output limit value. When electric vehicle climbs a hill, controller calculates a current value or power value to be discharged from power storage unit, the current value or power value being required for electric vehicle to climb the hill at a speed not less than a set minimum speed, while suppressing an amount of deterioration of cells within an allowable range, and when the calculated current value or power value is larger than the output limit value, replaces the output limit value with the calculated current value or power value.