Abstract: A distributed electricity storage system (1) includes a plurality of electricity storage apparatuses (110) which are connected to the same distribution line (50), a determination unit (310) that determines excess or deficit in the distribution line (50), an acquisition unit (320) that acquires, with respect to each of the plurality of electricity storage apparatuses, state information indicating a state of an electricity storage apparatus and direction information indicating an operating direction of a charging direction or a discharging direction, and a selection unit (330) that selects an electricity storage apparatus to be controlled in charging and discharging operations from the plurality of electricity storage apparatuses, using a determination result of the excess or deficient power, the state information, and the direction information.

Abstract: A distributed electricity storage system (1) includes a plurality of electricity storage apparatuses (110) which are connected to the same distribution line (50), a determination unit (310) that determines excess or deficit in the distribution line (50), an acquisition unit (320) that acquires, with respect to each of the plurality of electricity storage apparatuses, state information indicating a state of an electricity storage apparatus and direction information indicating an operating direction of a charging direction or a discharging direction, and a selection unit (330) that selects an electricity storage apparatus to be controlled in charging and discharging operations from the plurality of electricity storage apparatuses, using a determination result of the excess or deficient power, the state information, and the direction information.

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.

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.

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: communication characteristics detection means that detects characteristics of communication paths between the batteries and the battery control system for each of the plurality of batteries; selection means that, based on the detection results of the communication characteristics detection means, selects from among the plurality of batteries each battery that uses a communication path having characteristics within a predetermined range of communication characteristics as a candidate of a regulating battery that is to be used for regulating the electric power of the electric power system, and that selects regulating batteries from among candidates of regulating batteries based on predetermined conditions; and control means that supplies operation instructions that instruct the regulating batteries to charge or discharge.

Abstract: To provide a charging power control method which charges a storage battery and in which an “limit value” and a “requested power” are set in advance, the charging power control method including: a step of measuring an effective value of power used by the storage battery being charged; a step to determining whether or not the measured effective value monotonically decreases; a step of, when the effective value monotonically decreases, resetting the limit value and the value of the requested power to, for example, a value equal to the effective value; a step of storing the reset limit value and the reset requested power; a step of, thereafter, continuing the charging of the storage battery at the reset limit value; a step of performing the limited charging during charging of the storage battery; and a step of, after finish of the limited charging, resuming charging by setting the limit value to the stored value of the requested power.

Abstract: A charging state management method includes A1: information gathering step of gathering at least data of available power (for example, 100 kW) in a charging facility and data of minimum charging power (for example, 10 kW) for charging one electric vehicle, and A2: determining step of determining whether a standby-state charger is operable with the minimum charging power (for example, 10 kW) or more, assuming a case in which another electric vehicle is further added during charging of one or more electric vehicles, based on at least a value obtained by multiplying the number of all vehicles including the added vehicle (for example, n+1) by the minimum charging power (for example, 10 kW) and a value of the available power (for example, 100 kW).

Abstract: An object of the present invention is to effectively use an electric power without impairing the convenience for a user. A power management system 1 has a plurality of quick chargers 350 to which the electric power is supplied from the common electric power system, and a power management server 310 which manages electric power supplies to the quick chargers 350 from the electric power system. The quick charger 350 charges an electric vehicle with a constant-current/constant-voltage charging method.

Abstract: To optimize balance of supply and demand by making a demand amount of electric power as the whole of a plurality of charging apparatuses fluctuate while reflecting an idea of a manager of the charging apparatuses. A power supply/demand adjustment system 1 has a store information management server 220 configured to store information relating to power utilization at stores 300, power management servers 310 provided for each of the stores 300 and configured to manage operation of quick chargers 350, or the like, and an operation management server 210. The operation management server 210 receives a demand response, replaces the received demand response with a commit type demand response set for each of the stores 300 by utilizing at least one piece of information stored in the store information management server 220, and transmits the replaced commit type demand response to the power management server 310 of the respective stores 300.

Abstract: The present rapid charging method for electric vehicles includes the steps of A1: measuring charging power for an electric vehicle that is being charged, A2: determining whether the measured charging power decreases monotonically for a certain period of time, A3: determining whether a difference between a maximum value of the measured charging power and a value of the current charging power is equal to or higher than a certain value, A4: calculating a state of charge of the electric vehicle and determining whether a current state of charge is equal to or less than a predetermined value, and A5: stopping temporarily and restarting a charging if (a) the charging power does not decrease monotonically for the certain period of time, (b) the difference between the maximum value of the charging power and the current value of the charging power is equal to or higher than the certain value, and (c) the current state of charge is equal to or less than the predetermined value.

Abstract: A charging system control apparatus (2000) includes a control instruction transmission unit (2020), a charging characteristic information acquisition unit (2040), and an area information acquisition unit (2060). The area information acquisition unit (2060) acquires area information indicating the time dependency of electrical power being able to be supplied to the a charging system (3000) from an external power supply (5000), and the charging characteristic information acquisition unit (2040) acquires charging characteristic information having one or more charging characteristic functions indicating the time variation of electrical power required to charge an electric vehicle (6000). The area information is determined by an area where the external power supply (5000) is located. The control instruction transmission unit (2020) selects one charging characteristic function on the basis of the area information, and sends an instruction to the charging system (3000) on the basis of the selection.

Abstract: [Problems] To minimize an electric power loss of an entire charging system. [Means for solving the problems] An operation combination determination unit 145 selects a case of which a charger's electric power consumption is between a charger's maximum electric power consumption and a charger's minimum electric power consumption from a database 146, selects a table corresponding to a remaining amount of a storage battery for each case selected above, and determines a combination of operations of a charger 150, an AC/DC converter 110, and a DC/DC converter 120 in the selected table so that a loss level of an entire charging system 100 is minimum. An operation control unit 147 operates the charger 150, the AC/DC converter 110, and the DC/DC converter 120 based on the combination determined by the operation combination determination unit 145.

Abstract: An electric power control device includes an electric power control policy storage unit which stores an electric power control policy in which the maximum electric power consumption of a charger is determined according to a customer rank indicating a degree of priority of a customer and an electric power unit price specified by a time zone, a customer identification information acquisition unit which acquires customer identification information of the customer which requests the use of the charging service, a customer rank determination unit which determines the customer rank based on customer information of the customer, and an electric power control unit which controls the maximum electric power consumption of the charger when providing the charging service to the customer based on the electric power unit price in a time zone in which the charging service is provided to the customer, the customer rank, and the electric power control policy.

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: communication characteristics detection means that detects characteristics of communication paths between the batteries and the battery control system for each of the plurality of batteries; selection means that, based on the detection results of the communication characteristics detection means, selects from among the plurality of batteries each battery that uses a communication path having characteristics within a predetermined range of communication characteristics as a candidate of a regulating battery that is to be used for regulating the electric power of the electric power system, and that selects regulating batteries from among candidates of regulating batteries based on predetermined conditions; and control means that supplies operation instructions that instruct the regulating batteries to charge or discharge.

Abstract: Provided is a data supply apparatus including a transmission device that sends data to another data supply apparatus; a reception device that receives data from another data supply apparatus; a data storing device that stores data in a storage device; and a data storage determination device that determines whether or not the received data should be stored in the storage device, based on a predetermined supply probability. In a typical example, the reception device receives the data to which supply probability information which indicates the supply probability has been appended; and the data storage determination device determines whether or not the received data should be stored in the storage device, based on the supply probability indicated by the supply probability information.

Abstract: There is provided a distributed directory server to be used in a plurality of distributed directory servers connected to one another through a network and in a distributed directory system made up of a plurality of user devices, which includes a transmitting/receiving section to transmit or receive messages between user devices and other distributed directory servers, a use history notifying section to read a totalized information database and to provide notification for instructing the transmitting/receiving section to transmit data on the number of times of using Pushed data to the distributed directory server, and an evaluation function computing section to determine operation rules for Push distribution command and Pull search command to an index for every management unit.

Abstract: A port hopping flow detection system includes a storage section configured to store flow data for each of past flows of packets which have been transmitted from application programs and an application data for each of the application program. A receiving unit receives a new flow of packets. A detecting unit extracts a flow data for the new flow to store in the storage section, calculates an application data for the new flow from the extracted flow data for the new flow to compare the calculated application data with the application data stored in the storage section, and determines whether the new flow has been subjected to port hopping.

Abstract: An external network relay device measures group movement parameters that are used to determine whether the need exists to change the group affiliation of internal network relay devices. When the results of measuring the group movement parameters meet conditions that have been set in advance, the external network relay device transmits group movement notification messages instructing group movement to the internal network relay devices of its own group and causes the internal network relay devices to change to other groups.

Abstract: A port hopping flow detection system includes a storage section configured to store flow data for each of past flows of packets which have been transmitted from application programs and an application data for each of the application program. A receiving unit receives a new flow of packets. A detecting unit extracts a flow data for the new flow to store in the storage section, calculates an application data for the new flow from the extracted flow data for the new flow to compare the calculated application data with the application data stored in the storage section, and determines whether the new flow has been subjected to port hopping.

Abstract: An external network relay device measures group movement parameters that are used to determine whether the need exists to change the group affiliation of internal network relay devices. When the results of measuring the group movement parameters meet conditions that have been set in advance, the external network relay device transmits group movement notification messages instructing group movement to the internal network relay devices of its own group and causes the internal network relay devices to change to other groups.