CHARGE-DISCHARGE CONTROL DEVICE, CHARGE-DISCHARGE MONITORING DEVICE, CHARGE-DISCHARGE CONTROL SYSTEM, AND COMPUTER PROGRAM PRODUCT

• US 20130257351A1
• Filed: 12/26/2012
• Published: 10/03/2013
• Est. Priority Date: 03/29/2012
• Status: Active Grant

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Nishibayashi, Yasuyuki, Teramoto, Keiichi, Ise, Kotaro, Tanaka, Yasuyuki
• Granted Patent: US 9,184,601 B2
• Time in Patent Office: Days
• US Class Current: 320/107
• CPC Class Codes: H02J 3/28 Arrangements for balancing of the load in a network by storage of energy
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• 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

Abstract

According to an embodiment, a charge-discharge control device includes a receiving unit, a selecting unit, and a group controller. The receiving unit receives feasibility information. The selecting unit selects, of electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to a plurality of charging groups, one electric power device as a representative device of the charging group to which belongs that electric power device; and selects, of electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to a plurality of discharging groups, one electric power device as a representative device of the discharging group to which belongs that electric power device. Via the selected representative device, the group controller controls the other electric power devices belonging to the charging group or the discharging group to which belongs the selected representative device.

Claims

1. A charge-discharge control device comprising:

a receiving unit configured to receive schedule information that indicates a schedule time at which a plurality of electric power devices, each having measuring function of the electric flow and at least either a charging function or a discharging function, performs at least either charging or discharging; and

a group controller configured to, according to the schedule information, perform grouping in such a way that each of the electric power devices belongs to either one of a charging group for performing charging and a discharging group for performing discharging; and

a selecting unit configured to select the electric power device that has measurement function as a representative device of the charging and discharging group of electric power devices, and control on a group-by-group basis, via the selected representative device.

2. The device according to claim 1, wherein

from a plurality of measurement control devices each having no electric power function but having the measurement control function, the receiving unit further receives connection information indicating that the measurement control device is connected to a network, and

when the measurement control device belongs to the charging group or the discharging group, the selecting unit selects on a priority basis one of the measurement control devices as a representative device instead of selecting one of the electric power device as a representative device.

3. The device according to claim 1, wherein

from each of the plurality of electric power devices, the receiving unit receives at least either charge information indicating an amount of charge electric energy assigned to the charging group or discharge information indicating an amount of discharge electric energy assigned to the discharging group, and

when the receiving unit does not receive the feasibility information indicating disallowance of simultaneously belonging to the plurality of charging groups, the selecting unit selects the electric power device that has largest charge electric energy, from among a charge electric energy assigned to each charging group, as a representative device of the charging group to which belongs the electric power device having the largest charge electric energy, and when the receiving unit does not receive the feasibility information indicating disallowance of simultaneously belonging to the plurality of discharging groups, the selecting unit selects the electric power device that has largest discharge electric energy, from among a discharge electric energy assigned to each discharging group, as a representative device of the discharging group to which belongs the electric power device having the largest discharge electric energy.

4. The device according to claim 1, wherein, the group controller performs control in such a way that the selected electric power device gathers information received from the other electric power devices belonging to the charging group or the discharging group to which belongs the selected electric power device, and sends to the receiving unit the information that is gathered over a longer period of time than the period of time of receiving the information.

5. A charge-discharge control system comprising:

a plurality of electric power devices each having a measurement control function for measuring and controlling at least one of an electric power inflow and an electric power output as well as having an electric power function for performing at least one of charging and discharging; and

a charge-discharge control device that controls the plurality of electric power devices, wherein

the charge-discharge control device includes

a receiving unit configured to, from the plurality of electric power devices, receive feasibility information that at least either indicates whether or not it is allowed to simultaneously belong to a plurality of different charging groups that perform charging or indicates whether or not it is allowed to simultaneously belong to a plurality of different discharging groups that perform discharging;

a selecting unit configured to select, of the electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to the plurality of charging groups, one electric power device as a representative device of the charging group to which belongs the one electric power device, and to select, of the electric power devices that send the feasibility information indicating disallowance of simultaneously belonging to the plurality of discharging groups, one electric power device as a representative device of the discharging group to which belongs the one electric power device; and

a group controller configured to, via the selected representative device, control other electric power devices belonging to the charging group or the discharging group to which belongs the selected representative device.