Battery control device, battery control support device, battery control system, battery control method, battery control support method, and recording medium

Patent metadata

Field	Value
Publication number	US-2016274607-A1
Application number	US-201414375870-A
Country	US
Kind code	A1
Filing date	Feb 6, 2014
Priority date	Feb 8, 2013
Publication date	Sep 22, 2016
Grant date	—

Abstract

A battery control device controlling an operation of a battery connected to a power system includes detection means that detects battery-related information that shows a state of the battery, or a voltage of an interconnection point of the power system and the battery, first communication means that transmits a detection result of the detection means to an external device, and receives operation control information to control the operation of the battery from the external device, and control means that controls the operation of the battery, based on a state of the power system and the operation control information received by the first communication means.

First claim

1 . (canceled)

2 . A battery control device controlling an operation of a battery that is connected to a power system, the device comprising:
a detection unit that detects state information that shows a state of said battery; a first communication unit that transmits a detection result of said detection unit to an external device, and receives from the external device the operation control information to control the operation of said battery that is generated based on;
the detection result of said detection unit, and
a power amount that is allotted to all batteries that are controlled by N (N is a number that is 1 or larger) battery control devices in order to adjust a power amount in said power system; and
a control unit that controls the operation of said battery, based on a state of said power system, and based on the operation control information received by said first communication unit.

3 . The battery control device according to claim 2 ,
wherein said control unit further controls the operation of said battery based on the state information.

4 . The battery control device according to claim 2 ,
wherein said detection unit detects battery information for determining a chargeable and dischargeable capacity of said battery, as the state information, the operation control information is a ratio of a total amount of chargeable and dischargeable capacities of the batteries controlled by the N battery control devices, and the power amount allotted to all the batteries, and said control unit determines an adjustment power amount that is obtained by adjusting the power amount, which is determined in accordance with the state of said power system, based on the ratio, and executes charge or discharge with the adjustment power amount for said battery.

5 . The battery control device according to claim 2 ,
wherein said detection unit detects battery information for determining a chargeable and dischargeable capacity of said battery, as the state information, the operation control information is a ratio of a total amount of chargeable and dischargeable capacities of the batteries controlled by the N battery control devices, and the power amount allotted to all the batteries, and said control unit determines a correction power amount that is obtained by adjusting the power amount, which is determined in accordance with the state of said power system, based on the ratio and the state information, and executes charge or discharge with the correction power amount for said battery.

6 . The battery control device according to claim 3 ,
wherein said first communication unit receives from the external device correction information, which is generated based on the state information, that shows a charge amount or a discharge amount that brings the state of said battery close to a reference state, and said control unit controls the operation of said battery based on the correction information received by said first communication unit.

7 . The battery control device according to claim 6 ,
wherein, in a case that, with respect to the charge amounts or the discharge amounts shown in respective pieces of correction information that are transmitted to M (M is a number that is two or more) battery control devices, the charge amount is a positive value and the discharge amount is a negative value, said first communication unit receives a piece of correction information that corresponds to its own device, from among the respective pieces of correction information in each of which a total sum of a charge amount and a discharge amount is zero.

8 . The battery control device according to claim 6 ,
wherein, in a case that, with respect to the charge amounts or the discharge amounts shown in respective pieces of correction information that are transmitted to M (M is a number that is two or more) battery control devices, the charge amount is a positive value and the discharge amount is a negative value, said first communication unit receives a piece of correction information that corresponds to its own device, from among the respective pieces of correction information each of which is generated so that a speed of a change of a total sum of the charge amount and the discharge amount as time elapses becomes an upper limit of a response speed of a power stabilizing operation that is performed by an external power stabilizing device connected to said power system, or becomes lower.

9 . The battery control device according to claim 3 ,
wherein said first communication unit receives operation information, which shows a relation of the state of said power system and an operation content of said battery, from the external device, said control unit controls the operation of said battery based on the operation information received by said first communication unit, the state of said power system is expressed in a numeric value, the operation information is generated by using charge amounts or discharge amounts after correction, which are obtained by correcting the charge amounts or the discharge amounts, which bring states of respective batteries controlled by M (M is a number that is two or larger) battery control devices to target states, so that a total sum of the charge amounts or the discharge amounts of the respective batteries is in a linear relation with respect to the numeric value that shows the state of said power system in a situation in which the numeric value is within a predetermined range, and the charge amounts or the discharge amounts before correction of the respective batteries are determined based on the state information of the batteries.

10 . The battery control device according to claim 3 ,
wherein said first communication unit receives a reference state of said battery from the external device, and said control unit controls the operation of said battery based on a difference between the reference state of said battery received by said first communication unit, and the state of said battery shown by the state information.

11 . The battery control device according to claim 10 ,
wherein said first communication unit receives a speed-related state for determining a correction speed, at which the state of said battery is corrected, from the external device, and said control unit corrects the difference with the speed-related information received by said first communication unit, and controls the operation of said battery based on a result of the correction.

12 . The battery control device according to claim 2 ,
wherein said detection unit detects battery information for determining a chargeable and dischargeable capacity of said battery as the state information.

13 . The battery control device according to claim 2 ,
wherein said control unit controls the operation of said battery based on a difference of the state of said power system with respect to a reference state of said power system.

14 . A battery control device controlling an operation of a battery that is connected to a power system, the device comprising:
a detection unit that detects a state of an interconnection point of said power system and said battery; a first communication unit that transmits a detection result of said detection unit to an external device, and receives from the external device operation control information to control the operation of said battery that is generated based on;
the detection result of said detection unit, and
an adjustment target voltage that is a voltage of a voltage adjustment target spot in said power system; and
a control unit that controls the operation of said battery, based on the state of the interco

Assignees

• Nec Corp

Inventors

• Kudo Koji
• Sakuma Hisato
• Yano Hitoshi
• Aoki Kazuhiko
• Yanagita Yoshiho
• Iwasaki Yuma
• Hashimoto Ryo
• Saneyoshi Eisuke
• TOIZUMI Takahiro

Classifications

• Y04S10/14

  Energy storage units · CPC title

• Y04S10/123

  the energy generation units being or involving renewable energy sources · CPC title

• G05F1/66 Primary

  Regulating electric power · CPC title

• G05F1/625

  wherein it is irrelevant whether the variable actually regulated is AC or DC · CPC title

• Y02E70/30

  Systems combining energy storage with energy generation of non-fossil origin · CPC title