Electric power control system, battery control system, battery control device, battery control method, and recording medium

• US 9,941,727 B2
• Filed: 01/27/2017
• Issued: 04/10/2018
• Est. Priority Date: 09/21/2011
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Kudo, Koji, Yano, Hitoshi, Sakuma, Hisato, Shizuno, Takayuki, Okabe, Toshiya
• Primary Examiner(s): Ngo, Brian
• Application Number:
  US15/418,212
• Publication Number:
  US 20170141587A1
• Time in Patent Office: 438 Days
• Field of Search: 320125, 320132, 320134, 320136
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H02J 13/00016 using a wired telecommunication network or a data transmission bus
• CPC Class Codes: H02J 13/00034 the elements or equipment being or involving an electric power substation
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H02J 3/466 Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
• CPC Class Codes: H02J 7/0048 Detection of remaining charge capacity or state of charge [SOC]
• CPC Class Codes: H04B 17/391 Modelling the propagation channel
• CPC Class Codes: Y02E 60/00 Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y04S 10/14 Energy storage units
• CPC Class Codes: Y04S 40/124 using wired telecommunication networks or data transmission busses

Abstract

A battery control system that communicates by way of a communication network with a plurality of batteries that are connected to an electric power system includes a communication characteristics detection unit that, for each of the plurality of batteries, detects characteristics of communication paths between the batteries and the battery control system within the communication network. The battery control system includes a selection unit which selects, from among the plurality of batteries, each battery that has characteristics of communication paths within a predetermined communication characteristics range, as a regulating battery that is to be used for regulating electric power of the electric power system. The battery control system includes a control unit that supplies operation instructions that instructs the regulating batteries that were selected in the selection unit to perform a charging or discharging operation.

Claims

1. A battery control system that communicates by way of a communication network with a plurality of batteries that are connected to an electric power system, comprising:

a communication characteristics detection unit that, for each of said plurality of batteries, detects characteristics of communication paths between said batteries and said battery control system within said communication network;

a selection unit which selects, from among said plurality of batteries, each battery that has characteristics of communication paths within a predetermined communication characteristics range, as a regulating battery that is to be used for regulating electric power of said electric power system; and

a control unit that supplies operation instructions that instructs the regulating batteries that were selected in said selection unit to perform a charging or discharging operation, wherein;

said selection unit selects said regulating battery based on communication delay times of said communication paths.

2. The battery control system as set forth in claim 1, wherein:

said communication characteristics detection unit detects as characteristics of said communication paths at least one from among;

the communication delay times, packet error rate on said communication paths and bit error rate on said communication paths.

3. The battery control system as set forth in claim 1, wherein:

said selection unit selects said regulating battery in the order of regulating batteries having shorter communication delay times to regulating batteries having longer communication delay times.

4. The battery control system as set forth in claim 1, further comprising:

a battery characteristics detection unit that detects, for each of said plurality of batteries, characteristics of the battery;

wherein;

said selection unit selects said regulating battery having the characteristics of the battery within a predetermined conditions range.

5. The battery control system as set forth in claim 4, wherein:

said battery characteristics detection unit detects at least characteristics relating to charging or discharging of said batteries as characteristics of said batteries.

6. The battery control system as set forth in claim 5, wherein characteristics relating to charging or discharging of said batteries are stipulated by at least one from among:

delay time that is the time interval from reception of said operation instruction by said battery until the execution of an operation that corresponds to said operation instruction, maximum continuous charge/discharge time of said batteries, charge/discharge output of said batteries, residual capacity of said batteries, residual space capacity of said batteries, SOC of said batteries and voltage at the connection point with said electric power system of said batteries.

12. The battery control system as set forth in claim 1, further comprising:

a display unit that displays said predetermined communication characteristics range, selection results of candidates of said regulating batteries, and selection results of said regulating batteries.

13. The battery control system as set forth in claim 4, further comprising a display unit that displays said predetermined communication characteristics range, said predetermined battery characteristics range, and selection results of said regulating batteries.

7. A battery control system that communicates by way of a communication network with a plurality of batteries that are connected to an electric power system, comprising:

a communication characteristics detection unit that, for each of said plurality of batteries, detects characteristics of communication paths between said batteries and said battery control system within said communication network;

a selection unit which selects, from among said plurality of batteries, each battery that has characteristics of communication paths within a predetermined communication characteristics range, as a regulating battery that is to be used for regulating electric power of said electric power system; and

a control unit that supplies operation instructions that instruct the regulating batteries that were selected in said selection unit to perform a charging or discharging operation, wherein

a battery characteristics detection unit that detects, for each of said plurality of batteries, characteristics of the battery;

wherein;

said selection unit selects said regulating battery having the characteristics of the battery within a predetermined conditions range, wherein;

said battery characteristics detection unit detects at least characteristics relating to charging or discharging of said batteries as characteristics of said batteries, wherein

characteristics relating to charging or discharging of said batteries are provided with at least one from among;

delay time that is the time interval from reception of said operation instruction by said battery until the execution of an operation that corresponds to said operation instruction, maximum continuous charge/discharge time of said batteries, charge/discharge output of said batteries, residual capacity of said batteries, residual space capacity of said batteries, SOC of said batteries and voltage at the connection point with said electric power system of said batteries, wherein

said selection unit selects said regulating battery based on the maximum continuous charge/discharge time.

8. The battery control system as set forth in claim 7, wherein:

said selection unit selects said regulating battery in the order of regulating batteries having longer maximum continuous charge/discharge times to regulating batteries having shorter maximum continuous charge/discharge times.

9. A battery control system that communicates by way of a communication network with a plurality of batteries that are connected to an electric power system, comprising:

a communication characteristics detection unit that, for each of said plurality of batteries, detects characteristics of communication paths between said batteries and said battery control system within said communication network;

a selection unit which selects, from among said plurality of batteries, each battery that has characteristics of communication paths within a predetermined communication characteristics range, as a regulating battery that is to be used for regulating electric power of said electric power system; and

a control unit that supplies operation instructions that instruct the regulating batteries that were selected in said selection unit to perform a charging or discharging operation, wherein

said communication characteristics detection unit detects as characteristics of said communication paths at least one from among;

communication delay times on said communication paths, packet error rate on said communication paths and bit error rate on said communication paths, wherein

said selection unit selects said regulating battery based on a charge/discharge delay time which is obtained by adding the communication delay time and delay time that is the time interval from reception of said operation instruction by said battery until the execution of an operation that corresponds to said operation instruction.

10. The battery control system as set forth in claim 9, wherein:

said selection unit selects said regulating battery based on the charge/discharge delay time.

11. The battery control system as set forth in claim 10, wherein:

said selection unit selects said regulating battery in the order of regulating batteries having shorter charge/discharge delay times to regulating batteries having longer charge/discharge delay times.

14. A battery control method of a battery control system that communicates by way of a communication network with a plurality of batteries that are connected to an electric power system, said battery control method comprising:

for each of said plurality of batteries, detecting characteristics of communication paths between said batteries and said battery control system within said communication network;

selecting, from among said plurality of batteries based on communication delay times on said communication paths, a regulating battery that is to be used for regulating electric power of said electric power system; and

supplying, to said regulating batteries, operation instructions that instruct charging or discharging.

15. A non-transitory computer readable recording medium on which a program is recorded that causes a computer to execute:

a communication characteristic detection procedure of detecting, for each of a plurality of batteries that are connected to an electric power system, characteristics of communication paths between the batteries and said computer;

a selection procedure of selecting, from among said plurality of batteries based on communication delay times on said communication paths, a regulating battery that is to be used for regulating electric power of said electric power system; and

a control procedure of supplying to said regulating batteries operation instructions that instruct charging or discharging.