REGULATING DEVICE CONTROL SYSTEM, REGULATING DEVICE CONTROL METHOD, AND RECORDING MEDIUM

• US 20150012150A1
• Filed: 11/15/2012
• Published: 01/08/2015
• Est. Priority Date: 02/28/2012
• Status: Active Grant

• Current Assignee: NEC Corporation
• Original Assignee: NEC Corporation
• Inventors: Sakuma, Hisato, Kudo, Koji, Yano, Hitoshi, Iwasaki, Yuma
• Granted Patent: US 9,812,871 B2
• Time in Patent Office: Days
• US Class Current: 700/297
• CPC Class Codes: H01M 10/48 Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals, H01M50/569
• CPC Class Codes: H02J 3/32 using batteries with converting means
• CPC Class Codes: H02J 3/46 Controlling of the sharing of output between the generators, converters, or transformers
• CPC Class Codes: H02J 7/34 Parallel operation in networks using both storage and other dc sources, e.g. providing buffering H02J7/14 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A regulating-device-control system for controlling the operation of regulating devices for regulating the balance between electric power supply and demand includes: memory means storing, for each regulating device, correlation information expressing correlation of a state of the regulating device, an amount of power allotted to the regulating device, and an amount of variability in performance of the regulating device; determination means receiving state information that expresses the state of each regulating device and electric power information that expresses an amount of regulated power required for regulating the balance between electric power supply and demand, and, based on the correlation information, the state information, and the electric power information, determining the amount of electric power to be allotted to each regulating device such that the total value of the amount of variability in performance of each of the regulating devices is minimized under conditions in which the state of each regulating device is the state expressed by the state information and the total value of the amount of power to be allotted to the regulating devices is the amount of regulated power; and control means controlling the operation of each regulating device based on the determination result of the determination means.

Claims

1. A regulating device control system that controls the operation of a plurality of regulating devices for regulating a balance between electric power supply and demand in an electric power system, comprising:

a memory unit that stores, for each of said regulating devices, correlation information that represents correlation of a state of the regulating device, an amount of electric power to be allotted to the regulating device, and an amount of variability in performance of the regulating device;

a determination unit that receives state information that indicates the state of each regulating device and electric power information that indicates an amount of regulated power that is necessary for the regulation of said balance between electric power supply and demand and, based on said correlation information, said state information, and said electric power information, determines the amount of electric power to be allotted to each of said regulating devices such that a total value of the amount of variability in the performance of each of said regulating devices is minimized under conditions in which the state of each of said regulating devices is the state indicated in said state information and the total value of the amount of electric power allotted to each of said regulating devices is said amount of regulated power; and

a control unit that controls the operation of each of said regulating devices based on the determination results of said determination unit.

2. The regulating device control system as set forth in claim 1, wherein the amount of variability in performance of said regulating devices is an amount of variability in deterioration of said regulating devices.

3. The regulating device control system as set forth in claim 2, wherein:

said regulating devices are storage cells; and

the states of said regulating devices include a temperature of said storage cells, an ambient temperature of said storage cells, and an amount of reduction of capacity from the initialization of said storage cells.

4. The regulating device control system as set forth in claim 2, wherein:

said regulating devices are storage cells; and

the states of said regulating devices include SoC of said storage cells, a capacity of said storage cells, and an amount of reduction of capacity after initialization of said storage cells.

5. A regulating device control method in a regulating device control system that controls the operation of a plurality of regulating devices for regulating a balance between electric power supply and demand in an electric power system, comprising:

for each of said regulating devices, storing in memory means;

correlation information that indicates correlation of a state of the regulating device, an amount of electric power to be allotted to the regulating device, and an amount of variability in performance of the regulating device;

receiving state information that indicates the state of each regulating device and electric power information that indicates an amount of regulated power that is required for the regulation of said balance between the electric power supply and demand, and, based on said correlation information, said state information, and said electric power information, determining the amount of electric power to be allotted to each of said regulating devices such that a total value of the amount of variability in performance of each of said regulating devices is minimized under conditions in which the state of each of said regulating devices is the state indicated in said state information and the total value of the amount of electric power allotted to each of said regulating devices is said amount of regulated power; and

controlling the operation of each of said regulating devices based on the results of said determination.

6. A non-transitory recording medium that is readable by a computer and on which a program is recorded for causing a computer to execute:

a storage procedure of storing in a memory unit, for each of a plurality of regulating devices for regulating a balance between electric power supply and demand in an electric power system, correlation information that indicates correlation of a state of the regulating device, an amount of electric power to be allotted to the regulating device, and an amount of variability in performance of the regulating device;

a determination procedure of receiving state information that indicates the state of each regulating device and electric power information that indicates an amount of regulated power that is required for regulating said balance between said electric power supply and demand, and, based on said correlation information, said state information, and said electric power information, determining the amount of electric power to be allotted to each of said regulating devices such that a total value of the amount of variability in performance of each of said regulating devices is minimized under conditions in which the state of each of said regulating devices is the state indicated in said state information and the total value of the amount of electric power allotted to each of said regulating devices is said amount of regulated power; and

a control procedure of controlling the operation of each of said regulating devices based on the results of said determination.

7. A storage cell system comprising:

storage cells that regulates a balance between electric power supply and demand in an electric power system; and

a cell management unit that transmits a state of said storage cells to an outside device, that receives operation instructions from said outside device indicating an amount of electric power to be allotted to said storage cells, and that controls the operation of said storage cells in accordance with said operation instructions.