JP6554785B2 - Power management apparatus, power system, customer apparatus, power management method, and power management program - Google Patents

Description

  The present invention relates to a power management device, a power system, a customer device, a power management method, and a power management program, and in particular, a power management device, a power system, a customer device, a power management method, and a power management method used for trading surplus power. It relates to a power management program.

  The number of power retailers is increasing due to the liberalization of power retailing through the reform of the power system. The retailer purchases power from the power generation company at the power exchange and distributes the power supplied from the power generation company to the power demanding facilities of a plurality of consumers who have a contract relationship with the retailer.

  Further, for example, in a period when power supply and demand is tight, a retailer can sell surplus power generated by the above-mentioned consumer by saving power or generating power at a power exchange.

  On the other hand, a consumer generally sells generated power at a power exchange if the power generation scale of the power generation device is small even if the power generation facility itself generates power using the power generation device. I can't.

  Even in such a case, Patent Document 1 (Japanese Patent No. 5363653) discloses the following as an electric power supply and demand system for enabling electric power generated by a power generation device of a consumer to be sold at an electric power exchange. Such a technique is disclosed. That is, the power supply and demand system can procure power from its own power generation equipment and other business operators, and can sell the power generated by the power generation equipment at a power exchange, and a plurality of power consumers Including at least one of the plurality of power consumers, the at least one of the plurality of power consumers is a power generation power consumer having a power generation device, and the power generation by the power generation power consumer The electric power generated by the apparatus is consumed only by the power generation-capable electric power consumer, and the control device of the electric power company is configured so that the total cost required to supply electric power to the plurality of electric power consumers is minimized. Deriving the amount of power generated by the power generation device possessed by the power generation power demander, the amount of power generated by the power generation facility, the amount of power procured from the other operators, and the amount of power purchased and sold at a power exchange, The output device of the power company is the amount of power generated by the power generation device of the power generator that can be generated by the control device, the amount of power generated by the power generation facility, the amount of power procured from the other business, and According to the result of derivation of the amount of electric power purchased and sold at the power exchange, a power generation request to the power generator that can generate power, a power generation request to the power generation facility, a power transmission request to the other business operator, and a request to the power exchange You can bid for power trading.

Japanese Patent No. 53637553

  By the way, the transaction unit prescribed | regulated by the electric energy is defined for the electric power transaction in an electric power exchange, and the electric power exchange cannot buy and sell the quantity of electric power which is less than a transaction unit.

  For this reason, the retailer may not be able to effectively use surplus power generated by power saving or the like in the power demand facility.

  In addition, since the surplus power generated by power saving at the power demand facility is not stable, for example, as in the technique described in Patent Document 1, the power generation apparatus provided at each power demand facility is indirectly controlled. Even in this case, it is difficult to make the amount of surplus power into a transaction unit.

  This invention was made in order to solve the above-mentioned subject, The objective is a power management apparatus, a power system, and a consumer which can raise the economical effect of power saving by utilizing surplus power effectively. An apparatus, a power management method, and a power management program are provided.

  (1) In order to solve the above-described problem, a power management apparatus according to an aspect of the present invention is used by a business capable of providing power to a business partner and obtaining a price, and includes a power storage unit. A power management apparatus used in the system, comprising: a power information acquisition unit that acquires information on supply power and suppression amount information on power consumption suppression amount in one or a plurality of power demand facilities that are power consumption destinations; In the power system, for the surplus power obtained by subtracting the power consumption at each power demand facility from the supplied power, a part of the surplus power is stored in the power storage unit or the remaining power charged in the power storage unit A part or all of the power and the surplus power are provided to the business partner, and further, the amount of power provided to the business partner based on the suppression amount information A control unit for performing adjustment control for adjusting a remaining power amount of the power storage unit to a predetermined transaction units.

  (7) In order to solve the above-described problem, an electric power system according to an aspect of the present invention includes an electric power management device used by an operator that can provide electric power to a business partner and obtain a price, and electric power consumption. One or a plurality of consumer devices respectively used in one or a plurality of power demand facilities and a power storage unit, and the surplus power obtained by subtracting the power consumption in each power demand facility from the supplied power Part of the power stored in the power storage unit, or part or all of the power stored in the power storage unit and the surplus power are provided to the supplier, and the consumer device Before transmitting the suppression amount information on the power consumption suppression amount in the demand facility to the power management device, the power management device receiving the suppression amount information from the consumer device Based on the restraint amount information, adjustment control is performed to adjust the remaining amount of power stored in the power storage unit so that the amount of power provided to the supplier is a predetermined transaction unit. Suppression result information indicating the result of the power consumption suppression amount is transmitted to the power management apparatus.

  (8) Moreover, the electric power system which concerns on another situation of this invention is equipped with the electric power management apparatus used by the provider which can provide electric power to a business partner, and can obtain a price, and an electrical storage part, from supply electric power. With respect to surplus power obtained by subtracting the power consumption of one or more power demanding facilities that are power consumption destinations, the remaining power in which a part of the surplus power is charged in the power storage unit, or the power stored in the power storage unit Part or all of the power and the surplus power are provided to the business partner, and the power management device adjusts the remaining amount of power stored in the power storage unit so that the amount of power provided to the business partner is a predetermined transaction unit. Perform adjustment control.

  (9) In order to solve the above-described problem, a consumer device according to an aspect of the present invention is a consumer device used in a power system including a power storage unit. In the power system, power is supplied from supplied power. With respect to surplus power obtained by subtracting the power consumption of one or more power demanding facilities that are consumers, a part of the surplus power that is charged in the power storage unit or one of the power stored in the power storage unit A request receiving unit that receives power saving request information from a power management device used by a business operator that can provide a part of or all of the surplus power and the surplus power to the business partner, and that can provide the business with the power And, when the power saving request information is received by the request receiving unit, the suppression amount information regarding the power consumption suppression amount in the power demand facility is transmitted to the power management apparatus. And the power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the amount of power provided to the customer is a predetermined transaction unit. Adjustment control for adjusting the remaining amount of electricity stored in the electricity storage unit is performed.

  (10) In order to solve the above-described problem, a power management method according to an aspect of the present invention is a power management method that is used by a business that can provide power to a business partner and obtain compensation, and includes a power storage unit. A power management method in a power management device used in a system, comprising: obtaining information about power supply and suppression amount information about a power consumption suppression amount at one or more power demand facilities that are power consumption destinations; In the power system, with respect to surplus power obtained by subtracting power consumption at each power demand facility from the supplied power, a part of the surplus power is stored in the power storage unit or the remaining power charged in the power storage unit. A part or all of the generated power and the surplus power are provided to the supplier, and further, based on the suppression amount information, the supplier Comprising the step of performing adjustment control amount of power provided to adjust the remaining power amount of the power storage unit to a predetermined transaction units.

  (11) A power management method according to another aspect of the present invention includes a power management device used by a business capable of providing power to a business partner and obtaining compensation, and 1 or a power consumption destination A power management method in a power system comprising one or a plurality of consumer devices respectively used in a plurality of power demand facilities and a power storage unit, wherein in the power system, power consumption in each power demand facility is determined from supply power For the surplus power obtained by subtracting the power, a part of the surplus power is charged to the power storage unit, or a part or all of the power stored in the power storage unit and the surplus power are provided to the supplier. The consumer device transmitting to the power management device suppression amount information relating to a power consumption suppression amount in the power demand facility; and the power management. Device receives the suppression amount information from the consumer device and, based on the received suppression amount information, stores the remaining power storage in the power storage unit so that the amount of power provided to the supplier is a predetermined transaction unit. And a step of performing adjustment control for adjusting the amount, and a step of transmitting, to the power management device, suppression result information indicating a result of a power consumption suppression amount in the power demand facility.

  (12) A power management method according to another aspect of the present invention is a power management method in a consumer device used in a power system including a power storage unit, and in the power system, power consumption from supply power For the surplus power obtained by subtracting the power consumption of one or a plurality of power demand facilities, a part of the surplus power is charged to the power storage unit, or a part of the power stored in the power storage unit or Receiving power saving request information from a power management device used by an operator that provides all of the power and the surplus power to the business partner, and can provide power to the business partner to obtain compensation; and After receiving the information, transmitting to the power management device suppression amount information regarding the power consumption suppression amount in the power demand facility, and The storage unit receives the suppression amount information from the consumer device and, based on the received suppression amount information, stores the remaining power storage in the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit. Perform adjustment control to adjust the amount.

  (13) In order to solve the above-described problem, a power management program according to an aspect of the present invention is used by a business that can provide power to a business partner and obtain compensation, and includes a power storage unit. A power management program used in a power management apparatus used in a system, wherein information relating to power supply and restraint amount information relating to power consumption restraint amount in one or a plurality of power demanding facilities serving as power consumption destinations are stored in a computer. In the power system, a part of the surplus power is charged in the power storage unit with respect to surplus power obtained by subtracting power consumption at each power demand facility from the supplied power. Remaining power, or a part or all of the power stored in the power storage unit and the surplus power Adjustment control that is provided to the supplier and further adjusts the remaining amount of electricity stored in the electricity storage unit based on the suppression amount information so that the amount of power provided to the supplier is a predetermined transaction unit. This is a program for executing the steps to be performed.

  (14) A power management program according to another aspect of the present invention is a power management program used in a consumer device used in a power system including a power storage unit. In the power system, power is supplied from supplied power. The surplus power obtained by subtracting the power consumption of one or a plurality of power demanding facilities that are the consumption destinations of the power consumption unit is the remaining power that is charged in the power storage unit, or the power stored in the power storage unit. Part or all of the surplus power and the surplus power are provided to the business partner, and the computer receives power saving request information from a power management device used by a business operator that can provide power to the business partner and obtain compensation. And, after receiving the power-saving request information, information on the amount of power consumption restraint in the power demand facility The power management device receives the suppression amount information from the consumer device, and provides power to the supplier based on the received suppression amount information. Adjustment control is performed to adjust the remaining amount of electricity stored in the electricity storage unit so that the amount becomes a predetermined transaction unit.

  The present invention can be realized not only as a power management apparatus including such a characteristic processing unit, but also as a semiconductor integrated circuit that realizes part or all of the power management apparatus.

  According to the present invention, it is possible to increase the economic effect of power saving by effectively utilizing surplus power.

FIG. 1 is a diagram for explaining an outline of a power system according to an embodiment of the present invention. FIG. 2 is a diagram for explaining an example of the power supply / demand relationship before the start of the power saving period in the power system according to the embodiment of the present invention. FIG. 3 is a diagram for explaining an example of a power supply / demand relationship in the power saving period in the comparative example of the power system according to the embodiment of the present invention. FIG. 4 is a diagram for explaining another example of the power supply / demand relationship in the power saving period in the comparative example of the power system according to the embodiment of the present invention. FIG. 5 is a diagram for explaining an example of a power supply / demand relationship in the power saving period in the power system according to the embodiment of the present invention. FIG. 6 is a diagram for explaining another example of the power supply / demand relationship in the power saving period in the power system according to the embodiment of the present invention. FIG. 7 is a diagram showing a configuration of the power system according to the embodiment of the present invention. FIG. 8 is a diagram showing a configuration of the power management apparatus according to the embodiment of the present invention. FIG. 9 is a flowchart defining the procedure of adjustment control plan creation processing by the power management apparatus according to the embodiment of the present invention. FIG. 10 is a diagram for explaining an example of the relationship between the timings in the power system according to the embodiment of the present invention. FIG. 11 is a diagram showing a configuration of a customer device according to the embodiment of the present invention. FIG. 12 is a diagram showing an example of a sequence of power management processing in the power system according to the embodiment of the present invention.

  First, the contents of the embodiment of the present invention will be listed and described.

  (1) A power management apparatus according to an embodiment of the present invention is used by a business capable of providing power to a business partner to obtain a price, and used in a power system including a power storage unit The power system includes a power information acquisition unit that acquires information on supply power and suppression amount information on the power consumption suppression amount in one or more power demand facilities that are power consumption destinations. With respect to surplus power obtained by subtracting power consumption at each power demand facility from power, the remaining power in which part of the surplus power is charged in the power storage unit, or a part or all of the power stored in the power storage unit The surplus power is provided to the supplier, and further, based on the restraint amount information, the amount of power provided to the supplier is a predetermined transaction unit. A control unit for performing adjustment control for adjusting a remaining power amount of the power storage unit.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

  (2) Preferably, in the power system, power is provided to the business partner in a power saving period, and the control unit performs the adjustment control before the start timing of the power saving period.

  With this configuration, when it is determined that a part of surplus power needs to be charged to the power storage unit in order to make the amount of power provided to the supplier a predetermined transaction unit, power is supplied to the supplier. By the start of the power saving period, which is a period to be performed, it is possible to reduce the remaining amount of power stored in the power storage unit and secure a necessary free capacity. On the other hand, if it is determined that it is necessary to match the surplus power with the power in the power storage unit in order to make the amount of power provided to the supplier a predetermined transaction unit, the remaining power storage in the power storage unit is started before the start of the power saving period. The amount of power can be secured by increasing the amount.

  (3) More preferably, the control unit determines whether to charge or discharge the power storage unit in the adjustment control in accordance with the length of time until the start timing of the power saving period.

  With such a configuration, for example, when it is determined that a required amount of power can be charged before the start of the power saving period, adjustment control for charging the power storage unit is performed, and the required amount of power is saved. When it is determined that charging cannot be performed before the start of the period, it is possible to perform adjustment control for discharging the power storage unit in order to secure the free capacity of the power storage unit.

  (4) Preferably, the said control part adjusts the said electrical storage residual quantity in the said adjustment control so that the electrical storage residual quantity of the said electrical storage part in the state in which electric power is provided to the said supplier becomes more than predetermined value.

  With such a configuration, for example, the amount of surplus power predicted based on the suppression information could not be obtained, so that the remaining amount of power stored in the power storage unit becomes zero while power is being supplied to the business partner during the power saving period. In order to prevent this from happening, the power storage unit can be charged more by the start of the power saving period to give a margin to the remaining power storage.

  (5) Preferably, the power management apparatus further includes a consideration information acquisition unit that acquires consideration information indicating the consideration given from the supplier to the supplied power, and the consideration and the suppression indicated by the consideration information. And a consideration calculating unit for calculating a consideration to be given to a consumer of each power demand facility based on the quantity information.

  With such a configuration, since the consumer can receive compensation based on surplus power, for example, the customer can be given an incentive to save power during the power saving period, and more surplus power can be generated.

  (6) Preferably, in the power system, power is provided to the business partner during a power saving period, and the power information acquisition unit indicates a power consumption suppression amount reported from the power demand facility during the power saving period. The control unit acquires power suppression information, and the control unit adjusts the power provided to the supplier by controlling charging or discharging of the power storage unit based on the power control period information in the power saving period.

  With such a configuration, for example, the charge amount or the discharge amount of the power storage unit can be adjusted so that the amount of electric power provided to the supplier is a transaction unit. In addition, for example, stable power with little fluctuation can be provided to a supplier.

(7) The power system according to the embodiment of the present invention includes a power management device used by a business capable of obtaining power by providing power to a business partner, and one or a plurality of power consumption destinations One or a plurality of consumer devices respectively used in a power demand facility and a power storage unit, and with respect to surplus power obtained by subtracting power consumption in each power demand facility from supply power, a part of the surplus power is the power storage unit The remaining power charged in the battery, or part or all of the power stored in the power storage unit and the surplus power are provided to the supplier,
The consumer device transmits suppression amount information related to a power consumption suppression amount in the power demand facility to the power management device,
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit Adjustment control to adjust the remaining power of
The consumer device transmits suppression result information indicating a record of power consumption suppression amount in the power demand facility to the power management device.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

  (8) An electric power system according to an embodiment of the present invention includes an electric power management device used by a business capable of providing electric power to a business partner and obtaining a price, and a power storage unit. The surplus power obtained by subtracting the power consumption of one or a plurality of power demanding facilities that are the consumption destinations of the power consumption unit is the remaining power that is charged in the power storage unit, or the power stored in the power storage unit. Part or all of the power and the surplus power are provided to the business partner, and the power management device adjusts the remaining amount of power stored in the power storage unit so that the amount of power provided to the business partner is a predetermined transaction unit. Perform adjustment control.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

  (9) A consumer device according to an embodiment of the present invention is a consumer device used in an electric power system including a power storage unit, and in the electric power system, one or a plurality of electric power consumption destinations from supplied power For the surplus power obtained by subtracting the power consumption of the power demand facility, the remaining power in which part of the surplus power is charged in the power storage unit, or part or all of the power stored in the power storage unit and the surplus power And a request receiving unit that receives power saving request information from a power management device used by a business operator that can provide power to the business partner and obtain compensation. A suppression information transmitting unit that transmits suppression amount information related to a power consumption suppression amount in the power demand facility to the power management device when power saving request information is received; The management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, stores the power stored in the power storage unit so that the amount of power provided to the supplier is a predetermined transaction unit. Performs adjustment control to adjust the remaining amount.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

  (10) A power management method according to an embodiment of the present invention is used by a business capable of providing power to a business partner to obtain a price, and used in a power system including a power storage unit. The power management method in the method, including the step of obtaining information on the supplied power and suppression amount information on the power consumption suppression amount in one or a plurality of power demanding facilities that are power consumption destinations. For surplus power obtained by subtracting power consumption at each power demand facility from supply power, a part of the surplus power is charged to the power storage unit, or a part or all of the power stored in the power storage unit And the surplus power are provided to the business partner, and the power amount provided to the business partner is determined based on the suppression amount information. Comprising the step of performing adjustment control for adjusting a remaining power amount of the power storage unit such that the unit.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

  (11) The power management method according to the embodiment of the present invention includes a power management device used by a business capable of providing power to a business partner and obtaining a price, and one or a plurality of power consumption destinations. A power management method in an electric power system including one or a plurality of consumer devices respectively used in an electric power demand facility and a power storage unit, wherein the electric power system calculates power consumption in each electric power demand facility from supplied power For the surplus power subtracted, the remaining power in which part of the surplus power is charged in the power storage unit or part or all of the power stored in the power storage unit and the surplus power are provided to the supplier. The consumer apparatus transmits to the power management apparatus suppression amount information related to a power consumption suppression amount in the power demand facility; and the power management apparatus , Receiving the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage remaining amount of the power storage unit is set so that the amount of power provided to the customer is a predetermined transaction unit. The step of performing adjustment control to adjust, and the step of transmitting the suppression result information which shows the track record of the power consumption suppression amount in the power demand facility to the power management device.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

(12) A power management method according to an embodiment of the present invention is a power management method in a consumer device used in a power system including a power storage unit. In the power system, a power consumption destination and a power consumption destination For surplus power obtained by subtracting the power consumption of one or more power demanding facilities, a part of the surplus power is charged to the power storage unit, or part or all of the power stored in the power storage unit And the surplus power are provided to the supplier,
Receiving power saving request information from a power management device used by a provider capable of providing power to a business partner and obtaining compensation; and, after receiving the power saving request information, suppressing power consumption in the power demand facility Transmitting the suppression amount information regarding the amount to the power management device, the power management device receiving the suppression amount information from the consumer device, and based on the received suppression amount information, the transaction Adjustment control is performed to adjust the remaining amount of power stored in the power storage unit so that the amount of power provided first becomes a predetermined transaction unit.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

  (13) A power management program according to an embodiment of the present invention is used by a business capable of providing power to a business partner and obtaining a price, and used in a power system including a power storage unit In order to cause the computer to execute the step of acquiring information relating to the supplied power and the amount of restraint information relating to the amount of restraint of power consumption at one or more power demanding facilities that are the power consumption destinations. In the power system, for the surplus power obtained by subtracting the power consumption at each power demand facility from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit, or the A part or all of the power stored in the power storage unit and the surplus power are provided to the supplier. And causing the computer to execute a step of performing adjustment control for adjusting the remaining amount of power stored in the power storage unit so that the amount of power provided to the supplier is a predetermined transaction unit based on the suppression amount information. It is a program.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

  (14) A power management program according to an embodiment of the present invention is a power management program used in a consumer device used in a power system including a power storage unit. With respect to surplus power obtained by subtracting the power consumption of one or more power demanding facilities that are consumers, a part of the surplus power that is charged in the power storage unit or one of the power stored in the power storage unit Receiving power-saving request information from a power management device used by a business operator that can provide a part of or all of the surplus power and the surplus power to the business partner, and can provide the business with power and obtain compensation. And, after receiving the power saving request information, sending suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device. The power management device receives the suppression amount information from the consumer device, and supplies the amount of power to the supplier based on the received suppression amount information. Is adjusted to adjust the remaining amount of electricity stored in the electricity storage unit so that becomes a predetermined transaction unit.

  With such a configuration, for example, out of the surplus power in the power demand facility, an amount of power that satisfies the transaction unit can be provided to the business partner, and the remaining power can be charged in the power storage unit. As a result, it is possible to receive the value of the provided power from the business partner, to charge and hold the power that is not the object of the transaction in the power storage unit, and then supply it to, for example, a power demand facility as necessary. The surplus power can be utilized without waste. For example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit can be combined to make the amount of power that satisfies the transaction unit. It is possible to receive the price of power provided from a business partner. Therefore, the surplus power can be effectively used to enhance the economic effect of power saving.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated. Moreover, you may combine arbitrarily at least one part of embodiment described below.

[Configuration and basic operation]
FIG. 1 is a diagram for explaining an outline of a power system according to an embodiment of the present invention.

  Referring to FIG. 1, a power generation company 10, which is a power generation company such as an electric power company, can sell power generated by itself on the power exchange 20.

  The retailer (business) 30 receives power supply from the power generation company 10 by purchasing power from the power generation company 10 at the power exchange 20. The retailer 30 purchases, for example, power supplied from the power generation company 10 on the next day.

  The retailer 30 uses the power supplied from the power generation company 10 as a power demand facility of a plurality of customers 50 who have a contractual relationship with itself, specifically, a power consumption destination shown in FIG. It distributes to a plurality of power demand facilities 52.

  The consumer 50 is an organization or an individual such as a company, and operates equipment in its own power demand facility 52 using, for example, power received from the retailer 30.

  The trading participant 70 is a business capable of purchasing power at the power exchange 20, and is an organization or an individual such as a company.

  The delivery of power between business operators is performed using a power system (not shown).

  Here, for example, if the retailer 30 predicts that the power price will rise due to tight supply and demand of power during a certain period, the retailer 30 designates the period as a period for power saving (hereinafter also referred to as a power saving period). Then, each customer 50 is requested to save power.

  When the consumer 50 receives a power saving request from the retailer 30, the consumer 50 suppresses the consumption of power supplied from the retailer 30 during the power saving period.

  The retailer 30 may be able to provide the customer with surplus power, which is power obtained by subtracting the power consumption in the power demand facility 52 from the power supplied to itself.

  Specifically, the retailer 30 predicts the surplus power generated in the power saving period in advance, and the predicted surplus power, that is, surplus power expected to be generated in the power saving period, as power that can be provided in the power saving period as a power exchange. Sell at 20.

  For example, when the trading participant 70 purchases surplus power from the retailer 30, the retailer 30 provides the trading participant 70 with surplus power generated during the power saving period.

  The retailer 30 can obtain the provided power price by supplying power to the trading participant 70 who is a business partner. Specifically, for example, the transaction participant 70 pays the provided power consideration, that is, the purchase price of power, to the retailer 30.

  The retailer 30 gives a price for power saving to the customer 50 who has made power saving. Specifically, for example, the retailer 30 distributes the consideration for the provided power given from the trading participant 70 to the consumer 50 as the consideration for power saving.

  Note that the consideration of power provided by the trading participant 70 to the retailer 30 and the consideration of power saving given to the consumer 50 by the retailer 30 are not limited to money but may be gift certificates or coupons.

  Here, a transaction unit defined by the amount of electric power is determined for the electric power transaction at the electric power exchange. For this reason, in an electric power exchange, the electric power of the integral multiple of a transaction unit can be bought and sold, but the electric power of the quantity which is less than a transaction unit cannot be bought and sold.

  For example, if the amount of surplus power, that is, the surplus power amount is less than the transaction unit, the retailer 30 cannot sell surplus power at the power exchange 20.

  The surplus power amount is electric energy obtained by integrating the surplus power with time. Hereinafter, description will be made assuming that the transaction unit in the power exchange 20 is 1000 kWh.

  FIG. 2 is a diagram for explaining an example of the power supply / demand relationship before the start of the power saving period in the power system according to the embodiment of the present invention.

  With reference to FIG. 2, the power generation company 10 supplies a power amount of 2000 kWh to the retailer 30 in accordance with the contents of a transaction established in advance with the retailer 30.

  The retailer 30 supplies the customer 50 with the amount of power of 2000 kWh received from the power generator 10.

[Power supply and demand during the power-saving period]
(Comparative example of the embodiment of the present invention)
FIG. 3 is a diagram for explaining an example of a power supply / demand relationship in the power saving period in the comparative example of the power system according to the embodiment of the present invention.

  FIG. 3 shows the supply and demand of electric power when a consumer 50 who consumes 2000 kWh of electric power in a normal time receives a power saving request from the retailer 30 and saves 1200 kWh, that is, reduces power consumption. .

  With reference to FIG. 3, the power generation company 10 supplies a power amount of 2000 kWh to the retailer 30.

  The consumer 50 normally consumes an amount of power of 2000 kWh. Here, by saving power, the consumer 50 consumes an amount of power of 800 kWh.

  For this reason, the retailer 30 supplies the customer 50 with the amount of power of 800 kWh consumed by the customer 50 out of the amount of power of 2000 kWh received from the power generator 10.

  The retailer 30 provides the trading participant 70 with an electric energy of 1000 kWh that satisfies the transaction unit in the electric power exchange 20 among the electric power of 1200 kWh that is surplus without being supplied to the customer 50.

  Here, the amount of power that the retailer 30 provides to the trading participant 70 is the amount of power that the retailer 30 previously sold to the trading participant 70 at the power exchange 20.

  On the other hand, the retailer 30 obtains the power amount obtained by subtracting the power amount to be provided to the trading participant 70 from the surplus power amount of 1200 kWh, that is, the power amount of 200 kWh which is less than the transaction unit in the power exchange 20. To hand over.

  Specifically, for example, according to an agreement regarding stable power supply, out of the 200 kWh power amount, the power amount corresponding to 3% of the power amount supplied from the power generation company 10, that is, 60 kWh power corresponding to 3% of the 2000 kWh power amount The amount is collected by the power company 80 for a fee. However, of the 200 kWh electric energy, the remaining 140 kW electric energy is collected free of charge by the electric power company 80.

  FIG. 4 is a diagram for explaining another example of the power supply / demand relationship in the power saving period in the comparative example of the power system according to the embodiment of the present invention.

  FIG. 4 shows the supply and demand of electric power when a consumer 50 who consumes 2000 kWh of electric power in a normal state receives a power saving request from the retailer 30 and saves 800 kWh.

  With reference to FIG. 4, the power generation company 10 supplies a power amount of 2000 kWh to the retailer 30. The consumer 50 normally consumes an electric energy of 2000 kWh. Here, the electric energy of 1200 kWh is consumed by saving power.

  Therefore, the retailer 30 supplies the customer 50 with 1200 kWh of electric power consumed by the customer 50 out of the 2000 kWh of electric energy received from the power generation company 10. Therefore, the remaining power of 800 kWh is surplus.

  Since the surplus power of 800 kWh is less than the transaction unit in the power exchange 20, it cannot be provided to the trading participant 70.

  Here, the retailer 30 delivers the surplus power of 800 kWh to the power company 80 in accordance with an agreement regarding stable power supply. Specifically, for example, of the amount of power of 800 kWh, the amount of power of 60 kWh, which is 3% of the amount of power of 2000 kWh, which is the amount of power supplied from the power generation company 10, is purchased by the power company 80. On the other hand, the remaining 740 kW of the 800 kWh is collected free of charge by the power company 80.

  As described above, in the comparative example of the power system according to the embodiment of the present invention, the surplus power is delivered to the power company 80 at a low price with an amount of power less than the transaction unit in the power exchange 20, Surplus power cannot be used effectively.

  Therefore, in the power system according to the embodiment of the present invention, such a problem is solved by the following method.

(About embodiment of this invention)
FIG. 5 is a diagram for explaining an example of a power supply / demand relationship in the power saving period in the power system according to the embodiment of the present invention.

  FIG. 5 shows the supply and demand of electric power when a consumer 50 who consumes 2000 kWh of electric power in the normal time saves 1200 kWh in response to a power saving request from the retailer 30, similarly to FIG. 3. In the power system 101, the retailer 30 installs the power storage unit 31 in his / her facility, for example.

  Here, a part of the surplus power is charged in the power storage unit 31, and the remaining power is provided to the trading participant 70.

  Specifically, for example, with reference to FIG. 5, the power generation operator 10 supplies the retailer 30 with a power amount of 2000 kWh. The consumer 50 normally consumes a power amount of 2000 kWh. Here, the consumer 50 consumes a power amount of 800 kWh by performing power saving.

  For this reason, the retailer 30 supplies the customer 50 with the amount of power of 800 kWh consumed by the customer 50 out of the amount of power of 2000 kWh received from the power generator 10. Therefore, the remaining 1200 kWh of electric power is surplus.

  The retailer 30 provides the trading participant 70 with an electric energy of 1000 kWh that satisfies a transaction unit in the electric power exchange 20 out of the surplus electric energy of 1200 kWh. The amount of power that the retailer 30 provides to the trading participant 70 is the amount of power that the retailer 30 sold to the trading participant 70 in advance at the power exchange 20.

  On the other hand, the retailer 30 charges the power storage unit 31 with a power amount of 200 kWh, which is a power amount obtained by subtracting the power amount provided to the trading participant 70 from the surplus power amount of 1200 kWh.

  In other words, the retailer 30 charges the power storage unit 31 without passing the power amount that is less than the transaction unit out of the surplus power amount to the power company 80.

  Thereby, since the retailer 30 can use the electric power charged in the power storage unit 31 as needed after that, the surplus electric power can be used effectively.

  FIG. 6 is a diagram for explaining another example of the power supply / demand relationship in the power saving period in the power system according to the embodiment of the present invention.

  FIG. 6 shows the supply and demand of electric power when the consumer 50 who consumes an amount of electric power of 2000 kWh in the normal time saves 800 kWh in response to a power saving request from the retailer 30 as in FIG. .

  Here, part or all of the power stored in the power storage unit 31 and surplus power are provided to the trading participant 70.

  Specifically, for example, referring to FIG. 6, retailer 30 charges power storage unit 31 with a certain amount of power in advance. The power generation company 10 supplies a power amount of 2000 kWh to the retailer 30.

  The consumer 50 normally consumes an electric energy of 2000 kWh. Here, the electric energy of 1200 kWh is consumed by saving power.

  Therefore, the retailer 30 supplies the customer 50 with 1200 kWh of electric power consumed by the customer 50 out of the 2000 kWh of electric energy received from the power generation company 10. Therefore, the remaining power of 800 kWh is surplus.

  The surplus power of 800 kWh cannot be provided to the trading participant 70 because it is less than the trading unit in the power exchange 20.

  Therefore, the retailer 30 takes out the power amount of 200 kWh from the power storage unit 31 and sets it to 1000 kWh that satisfies the transaction unit together with the surplus power amount of 800 kWh.

  Specifically, the retailer 30 takes out the amount of power of 200 kWh from the power storage unit 31 and plans in advance to secure the amount of power of 1000 kWh together with the surplus amount of power of 800 kWh, and power to be secured The quantity is sold on the power exchange 20. Then, the retailer 30 provides the trading participant 70 with the amount of power of 1000 kWh during the power saving period.

  Thereby, the retailer 30 can provide the trading participant 70 with the surplus power even if the surplus power is small.

  FIG. 7 is a diagram showing a configuration of the power system according to the embodiment of the present invention.

  Referring to FIG. 7, the power system 101 includes a power generator device 11, an exchange device 21, a power storage unit 31, a power management device 32, a plurality of customer devices 51, a plurality of loads 61, A plurality of storage batteries 62 and a plurality of power generation devices 63 are provided.

  The power storage unit 31 includes, for example, a battery such as a lithium ion battery, a redox flow battery, a molten salt battery, a sodium sulfur battery, or a lead battery, and can store a large amount of electric power, that is, large electric energy.

  The power generation company apparatus 11 is a server operated by the power generation company 10, for example. The exchange apparatus 21 is a server operated by the power exchange 20, for example. The power management device 32 is, for example, a server operated by the retailer 30. Participant device 71 is a server operated by transaction participant 70, for example.

  The consumer device 51 is, for example, a BEMS (Building Energy Management System) or a HEMS (Home Energy Management System) for reducing power consumption by controlling the operation of electrical equipment in the power demand facility 52 of the consumer 50. This device is used in this system. The customer apparatus 51 is provided in the power demand facility 52, for example.

  The load 61, the storage battery 62, and the power generation device 63 are provided in the power demand facility 52 and controlled by the customer device 51. The load 61 is an electrical device such as a lighting device and an air conditioning device. The storage battery 62 is a storage battery that is provided for the purpose of, for example, charging inexpensive midnight power and using the charged power during the day to reduce electricity charges. The power generation device 63 is a power generation device such as a cogeneration system, a fuel cell, or a solar power generation device.

  A network is established between the power generator device 11 and the exchange device 21, between the exchange device 21 and the power management device 32, between the exchange device 21 and the participant device 71, and between the power management device 32 and each customer device 51. Connected through.

  The power transaction between the power generation company 10 and the retail business 30 performed in the power exchange 20 is performed using the power generation company device 11, the exchange device 21, and the power management device 32.

  In addition, power trading between the retailer 30 and the trading participant 70 performed at the power exchange 20 is performed using the power management device 32, the exchange device 21, and the participant device 71.

  The retailer 30 receives supply of electric power from the power generation company 10 according to the content of the transaction with the power generation company 10 established at the power exchange 20.

  The power management device 32 acquires supply power information regarding the power supplied from the power generation company 10 to the retail business 30 from the exchange device 21. The power supply information indicates, for example, the amount of power purchased by the retailer 30 from the power generator 10 and the period during which the power is supplied.

[Operation before starting power saving period]
The power management device 32 transmits power saving request information to each consumer device 51 when, for example, a tight power supply and demand is expected. The power saving request information is information for requesting the customer 50 to perform power saving in the power demand facility 52, and indicates, for example, a power saving period in which power saving should be performed, and an amount of power to be saved, that is, a power saving target. . The power saving target is set for each power demand facility 52, for example.

  When there is a power saving request from the retailer 30, the customer 50 determines whether or not to save power in response to the power saving request, that is, whether or not to participate in power saving. Specifically, the customer device 51 receives the power saving request information from the power management device 32 and presents the content of the received power saving request information to the customer 50.

  The consumer 50 confirms the content of the power saving request information and transmits, for example, power saving response information (suppression amount information) indicating whether or not the power demand facility 52 participates in power saving to the power management apparatus 32.

  For example, when the customer 50 confirms the content of the power saving request information and determines that the power saving target can be achieved during the power saving period, the customer 50 transmits the power saving response information indicating that he / she participates in power saving from the customer device 51 to the power management device 32. To do.

  That is, the power saving response information indicating participation in power saving indicates that, in the power demand facility 52, consumption of the electric energy indicated by the power saving target is scheduled to be suppressed during the power saving period.

  When the power saving response information indicating participation in power saving is transmitted to the power management device 32, the customer device 51 controls the load 61, the storage battery 62, and the power generation device 63 so that the power saving target is achieved in the power saving period.

  When the power management device 32 receives the power saving response information indicating that it participates in power saving from the customer device 51, the power management device 32 checks the power saving target of the power demand facility 52 stored by itself, thereby suppressing the consumption of the customer 50. Recognize the amount of power you plan to do.

  Then, the charge / discharge control unit 40 predicts the amount of surplus power by summing the amounts of power suppressed in each power demand facility 52.

  Here, for example, as described with reference to FIG. 5, the retailer 30 may charge the power storage unit 31 with an amount of electric power that is less than the transaction unit in the power saving period. In addition, as described with reference to FIG. 6, the retailer 30 may take out the power charged in the power storage unit 31 in advance from the power storage unit 31 during the power saving period.

  For this reason, when the power storage unit 31 is charged in the power saving period, the power storage unit 31 needs to have a sufficient free capacity before the start of the power saving period, and when power is taken out in the power saving period, It is necessary to have a sufficient amount of electric power, that is, the remaining amount of electricity stored until the start of the operation.

  For example, from an economical viewpoint, the power management device 32 determines whether to charge the power storage unit 31 or take out power from the power storage unit 31 during the power saving period, and stores the remaining amount of power stored in the power storage unit 31 before the start of the power saving period. Adjust.

  Specifically, the power management apparatus 32 predicts the amount of surplus power in the power saving period before the start of the power saving period, based on the remaining amount of power stored in the power storage unit 31, the remaining time until the power saving period starts, and the like. Then, it is determined whether to charge the power storage unit 31 or to extract power from the power storage unit 31.

  When the power management device 32 determines to charge the power storage unit 31 during the power saving period, the power management unit 32 can charge the power storage unit 31 with an amount of power that is less than the transaction unit among the surplus power amount during the power saving period. Sufficient free capacity is secured in the power storage unit 31 by the start of the power saving period.

  Specifically, for example, when the power management device 32 predicts that the amount of surplus power in the power saving period, that is, the surplus power amount is 1200 kWh, and the free capacity of the power storage unit 31 is less than 200 kWh Before the start of the power saving period, electric power is taken out from the power storage unit 31 so that the free capacity of the power storage unit 31 is 200 kWh or more, that is, the power storage unit 31 is discharged to reduce the remaining power storage.

  In addition, for example, when the power management device 32 predicts that the surplus power amount in the power saving period is 1200 kWh, and the free capacity of the power storage unit 31 is 200 kWh or more, the power management apparatus 32 has a period until the start of the power saving period. The power storage unit 31 is operated so that the free capacity does not fall below 200 kWh.

  For example, the retailer 30 supplies the electric power extracted from the power storage unit 31 to the power demand facility 52 and consumes it. The retailer 30 may use the power extracted from the power storage unit 31 for other purposes such as providing the power generator 10 with power.

  On the other hand, when the power management device 32 determines to extract power from the power storage unit 31 during the power saving period, the power amount that is less than the transaction unit of the surplus power amount during the power saving period and the remaining power storage amount of the power storage unit 31 The power storage unit 31 is charged before the start of the power saving period so that the sum (hereinafter also referred to as the total amount of power storage surplus) is an integral multiple of the transaction unit.

  Specifically, for example, when the power management device 32 predicts that the surplus power amount in the power saving period is 800 kWh, and the remaining power storage amount of the power storage unit 31 is less than 200 kWh, The power storage unit 31 is charged so that the remaining power storage is 200 kWh or more before the start.

  In addition, for example, when the power management device 32 predicts that the surplus power amount in the power saving period is 800 kWh, and the free capacity of the power storage unit 31 is 200 kWh or more, the power management apparatus 32 has a period until the start of the power saving period. The power storage unit 31 is operated so that the remaining power storage does not fall below 200 kWh.

[Operation during power saving period]
The power management device 32 transmits a suppression report request for requesting a report of the suppressed power consumption to each customer device 51 regularly or irregularly during the power saving period.

  When receiving the suppression report request from the power management device 32, the customer device 51 transmits suppression result information indicating the actual value of the suppression amount of power consumption in its own power demand facility 52 to the power management device 32.

  The power management device 32 calculates surplus power based on the suppression performance information received from each consumer device 51. Specifically, the power management apparatus 32 calculates surplus power by adding together the actual values of the power consumption suppression amounts indicated by the respective suppression performance information. Then, the power management device 32 controls charging or discharging of the power storage unit 31 based on the calculated surplus power.

  Specifically, for example, when the power storage unit 31 is discharged before the start of the power saving period, that is, when a predetermined free capacity is secured in the power storage unit 31, a part of the surplus power is saved in the power saving period. The power storage unit 31 is charged. At this time, the power management apparatus 32 charges the power storage unit 31 so that the remaining power amount of the surplus power charged in the power storage unit 31 is an integral multiple of the transaction unit.

  On the other hand, for example, when the power storage unit 31 is charged before the start of the power saving period, that is, when a predetermined remaining power storage amount is secured in the power storage unit 31, the power management device 32 discharges the power storage unit 31 in the power saving period. At this time, the power management apparatus 32 adjusts the electric power extracted from the power storage unit 31 so that the total amount of power storage surplus is an integral multiple of the transaction unit.

[Power management device]
FIG. 8 is a diagram showing a configuration of the power management apparatus according to the embodiment of the present invention.

  Referring to FIG. 8, the power management device 32 includes a consideration information acquisition unit 33, a consideration calculation unit 34, a demand prediction unit 35, a power information acquisition unit 36, a storage unit 37, a request creation unit 38, A charge / discharge control unit (control unit) 40 and a power saving request transmission unit 41 are provided.

  For example, the demand prediction unit 35 acquires information on power supply and demand from the exchange apparatus 21, and predicts a period in which power supply and demand is tight based on the acquired information.

  The request creation unit 38 sets a power saving period based on the period predicted by the demand prediction unit 35, and sets a power saving target for each power demand facility 52. Then, the request creation unit 38 creates power saving request information indicating a power saving period and a corresponding power saving target for each power demand facility 52, and outputs the power saving request information to the power saving request transmission unit 41. In addition, the request creation unit 38 stores the power saving period and the power saving target of each power demand facility 52 in the storage unit 37.

  The power saving request transmitting unit 41 transmits each power saving request information received from the request creating unit 38 to the corresponding customer device 51.

  The power information acquisition unit 36 acquires, for example, supply power information, which is information related to supply power, from the exchange device 21 and stores it in the storage unit 37, for example. Based on the supply power information acquired by the power information acquisition unit 36, the power management device 32 recognizes, for example, a period for receiving power supply from the power generation company 10 and the amount of power supplied from the power generation company 10.

  The power information acquisition unit 36 acquires the power saving response information transmitted from each customer device 51 after the power saving request transmission unit 41 transmits the power saving request information to each customer device 51, Output to the charge / discharge control unit 40.

  The power saving response information is information on the planned power consumption suppression amount indicating whether or not the power saving target is scheduled to be achieved in the power saving period, that is, whether or not the power consumption target indicated by the power saving target is planned to be suppressed. is there.

  The charge / discharge control unit 40 creates an adjustment control plan for adjusting the remaining amount of power stored in the power storage unit 31 based on each power saving response information acquired by the power information acquisition unit 36, and the power saving period is determined according to the generated plan. Perform adjustment control before starting.

  Next, the operation when the power management apparatus 32 according to the embodiment of the present invention executes the adjustment control plan creation processing will be described.

  Each device in the power system 101 includes a computer, and an arithmetic processing unit such as a CPU in the computer reads and executes a program including a part or all of each step of the following flowcharts and sequences from a memory (not shown). Each of the programs of the plurality of apparatuses can be installed from the outside. The programs of the plurality of apparatuses are distributed while being stored in a recording medium.

  FIG. 9 is a flowchart defining the procedure of adjustment control plan creation processing by the power management apparatus according to the embodiment of the present invention.

  With reference to FIG. 9, first, the charge / discharge control unit 40 in the power management device 32 determines the remaining amount of power stored in the power storage unit 31 when, for example, the power saving request transmission unit 41 transmits the power saving request information to each consumer device 51. Confirm (step S11).

  Next, the charge / discharge control unit 40 confirms the power saving period stored in the storage unit 37, and confirms the ready time that is the time from the current time to the start time of the power saving period (step S12). Here, for example, the clock used by the charge / discharge control unit 40 to confirm the time is synchronized with the clock used for each process in the power exchange 20 regularly or irregularly.

  Next, the charge / discharge control unit 40, for example, based on the power saving period stored in the storage unit 37, the power saving target of each power demand facility 52, and each power saving response information acquired by the power information acquisition unit 36, for example. The surplus power amount in the period is predicted (step S13).

  Specifically, for example, the charge / discharge control unit 40 confirms the power demand facility 52 that is the transmission source of the power saving response information indicating that it participates in power saving. The charge / discharge control unit 40 searches for the power saving target in the power demand facility 52 of the transmission source from the power saving targets of each power demand facility 52 stored in the storage unit 37. The charge / discharge control unit 40 recognizes that the amount of power indicated by the power saving target acquired as a result of the search is the amount of power that is saved in the power saving period in the power demand facility 52 of the transmission source, that is, the amount of power whose consumption is suppressed. To do.

  And the charging / discharging control part 40 estimates the electric energy which becomes surplus in a power saving period by totaling the electric energy in which consumption is suppressed in each electric power demand facility 52.

  Next, for example, the charge / discharge control unit 40 predicts the price of power during the power saving period based on various information stored in advance in the storage unit 37 (step S14).

  Specifically, for example, the storage unit 37 stores in advance the price of power when a power transaction has been established in the past, weather information, power supply and demand data, a predicted value of surplus power at other operators, and the like. ing. The charge / discharge control unit 40 predicts the price of electric power based on weather information, past supply and demand data, and the like using, for example, an algorithm unique to the retailer 30.

  More specifically, for example, the charge / discharge control unit 40 creates a price function using weather information, supply and demand data, etc. as parameters, based on various information stored in the storage unit 37. Then, the charge / discharge control unit 40 calculates the predicted price by inputting current weather information, supply and demand data, and the like to the function.

  Note that the charge / discharge control unit 40 may use a predicted value of surplus power of another company, weather forecast information during a power saving period, and the like as parameters.

  Further, the charge / discharge control unit 40 may predict the price of power using multiple regression analysis, time series analysis technology, machine learning technology, or the like.

  Next, the charge / discharge control unit 40 is based on the remaining power storage amount of the power storage unit 31, the ready time, the predicted value of the surplus power amount, and the predicted price of the power amount acquired by the operations shown in steps S <b> 11 to S <b> 14. Then, the amount of power sold at the power exchange 20 and the amount of power to be charged or discharged in the adjustment control are determined (step S15).

  For example, the charge / discharge control unit 40 determines whether to charge or discharge the power storage unit 31 in the adjustment control according to the length of the ready time.

  Specifically, for example, the charge / discharge control unit 40 has determined that the remaining power storage amount can be increased to an integral multiple of the transaction unit by increasing the remaining power storage before the start of the power saving period. In this case, it is determined to charge the power storage unit 31 in the adjustment control.

  In this case, the charge / discharge control unit 40 further determines the amount of power to be charged in the adjustment control so that the total amount of power storage surplus during the power saving period can be an integral multiple of the transaction unit.

  At this time, the charge / discharge control unit 40 sets the amount of power to be charged so that the remaining amount of power stored in the power storage unit 31 is equal to or greater than a predetermined value in a state where power is provided to the business partner.

  Specifically, the charge / discharge control unit 40 determines that the remaining amount of power stored in the power storage unit 31 is less than or equal to a predetermined value in a state where surplus power and power extracted from the power storage unit 31 are provided to the supplier, that is, in a power saving period. In order to avoid this, the amount of power to be charged in the power storage unit 31 is set.

  More specifically, for example, the charging / discharging control unit 40 determines that the power storage unit 31 is in the middle of supplying power to the transaction participant 70 because the amount of surplus power predicted in advance is not obtained in the power saving period. In order to prevent the remaining amount of power storage from becoming zero, a larger amount of power to be charged in the power storage unit 31 is set.

  On the other hand, for example, when the charge / discharge control unit 40 determines that the power storage surplus total amount during the power saving period cannot be an integral multiple of the transaction unit even if the power storage unit 31 is charged until the start of the power saving period. Then, it is determined that the power storage unit 31 is discharged in the adjustment control.

  In this case, the charge / discharge control unit 40 further discharges in the adjustment control so that the amount of the remaining power charged in the power storage unit 31 among the surplus power in the power saving period can be an integral multiple of the transaction unit. Determine the amount of power to be used.

  At this time, for example, the charge / discharge control unit 40 is configured to prevent the amount of power surplus in the power saving period from being larger than expected, and charging cannot be continued due to the power storage unit 31 being fully charged in the middle of the power saving period. The amount of power to be discharged from the power storage unit 31 is set to be large.

  Here, in general, during the period when power supply and demand is tight, the price of power at the power exchange 20 increases. The charge / discharge control unit 40 takes this into consideration, and from the power amount sold at the power exchange 20 and the power amount charged in the power storage unit 31 or the power storage unit 31 in the adjustment control so as to maximize the profit. Determine the amount of power to be discharged. At this time, the charging / discharging control unit 40 may consider the power saving consideration given to the consumer 50 by the retailer 30.

  Next, the charge / discharge control unit 40 creates a specific plan for adjustment control (step S16). For example, the charge / discharge control unit 40 determines the detailed content of the adjustment control so that the amount of power provided to the trading participant 70 who is a business partner during the power saving period can be an integral multiple of the trading unit.

  Specifically, for example, when the charge / discharge control unit 40 determines to charge the power storage unit 31 and adjust the amount of power to be charged in the adjustment control by the operation shown in step S15, the charge / discharge control unit 40 is provided to the business partner during the power saving period. The charging start time, the charging speed, and the like of the power storage unit 31 in the adjustment control are determined so that the amount of power to be obtained can be an integral multiple of the transaction unit.

  Alternatively, when the charge / discharge control unit 40 determines the amount of power to be discharged and the amount of power to be discharged in the adjustment control by the operation shown in step S15, the charge / discharge control unit 40 trades the amount of power provided to the customer during the power saving period The discharge start time, the discharge speed, and the like of the power storage unit 31 in the adjustment control are determined so as to be an integral multiple of the unit.

  Referring to FIG. 8 again, charge / discharge control unit 40 performs adjustment control based on the suppression information and the like so that the amount of power provided to the supplier is an integral multiple of a predetermined transaction unit. In addition, for example, at this time, the charge / discharge control unit 40 performs the adjustment control so that the remaining amount of power stored in the power storage unit 31 in a state where power is provided to the supplier is equal to or greater than a predetermined value. Adjust the amount.

  Specifically, for example, the charge / discharge control unit 40 performs the adjustment control according to the adjustment control plan created based on the suppression information and the like. The charge / discharge control unit 40 performs adjustment control before the start timing of the power saving period.

  Here, the electric power for charging the power storage unit 31 in the adjustment control may be, for example, electric power that has not been consumed by each customer 50 among the electric power supplied from the electric power generation company 10, or the electric power generation company 10 or electric power procured separately from the electric power company 80, or electric power generated by a power generation device (not shown).

  Moreover, the electric power discharged from the electrical storage part 31 in adjustment control may be supplied to the consumer 50, may be delivered to the electric power generation company 10, and may be consumed in the load which is not shown in figure, for example.

  The power management device 32 sells, at the power exchange 20, power that can be provided to the business partner during the power saving period before the start timing of the power saving period. Here, the transaction participant 70 purchases power from the power management device 32.

  For example, in the power saving period, the retailer 30 provides power to the transaction participant 70 according to the transaction details with the transaction participant 70.

  The power information acquisition unit 36 in the power management apparatus 32 transmits the suppression report request for requesting the report of the power consumption suppression amount to each power demand facility 52 during the power saving period, so that the suppression results from each power demand facility 52 are recorded. Get information. The suppression result information indicates an amount of suppression of power consumption in the power demand facility 52.

  In the power saving period, the charge / discharge control unit 40 controls the charging or discharging of the power storage unit 31 based on the respective suppression record information acquired by the power information acquisition unit 36, thereby providing the power provided to the transaction participant 70. Adjust.

  Specifically, for example, the charge / discharge control unit 40 recognizes surplus power based on the respective suppression record information. The charge / discharge control unit 40 then matches the amount of power provided to the transaction participant 70 with the amount of power sold to the transaction participant 70, that is, the amount of power provided to the transaction participant 70 is a transaction unit. The charging or discharging of the power storage unit 31 is controlled so as to be an integer multiple.

  More specifically, when the power storage unit 31 is charged in the adjustment control, the charge / discharge control unit 40 determines that the total of the amount of surplus power and the amount of power discharged from the power storage unit 31 is the transaction participant 70 during the power saving period. The discharge of the power storage unit 31 is controlled so as to coincide with the amount of electric power sold to.

  On the other hand, when the power storage unit 31 is discharged in the adjustment control, the charge / discharge control unit 40 is the amount of power that the remaining power charged in the power storage unit 31 in the surplus power is sold to the trading participant 70 during the power saving period. The charging of the power storage unit 31 is controlled so as to match.

  Hereinafter, the process of controlling the charging or discharging of the power storage unit 31 so that the amount of power provided to the trading participant 70 matches the amount of power sold to the trading participant 70 in advance is also referred to as providing time control.

  The consideration information acquisition unit 33 acquires the consideration information from the exchange device 21 when, for example, a transaction between the retailer 30 and the transaction participant 70 is performed, and outputs the acquired consideration information to the consideration calculation unit 34.

  The consideration information indicates a consideration given from the trading participant 70 to the provided power. The consideration information indicates, for example, the content of the consideration given from the transaction participant 70 to the retailer 30 when the retailer 30 supplies power to the transaction participant 70 in accordance with the established transaction.

  The consideration information is not limited to the configuration indicating the contents of the consideration given to the retailer 30 by the trading participant 70, but the consideration requested by the retailer 30 when the retailer 30 and the trading participant 70 make a transaction. It may be indicated that the transaction participant 70 accepts the contents of.

  The consideration calculation unit 34 should give the consumer 50 of each power demand facility 52 based on the consideration indicated by the consideration information acquired by the consideration information acquisition unit 33 and the power saving response information acquired by the power information acquisition unit 36. Calculate the power saving consideration.

  Specifically, for example, the value calculation unit 34 uses the power saving response information and the power saving target of each power demanding facility 52 stored in the storage unit 37, in the power demanding facility 52 that is the transmission source of the power saving response information. Check the amount of power saved.

  The consideration calculation unit 34 distributes the consideration indicated by the consideration information to each power demand facility 52 according to the amount of power scheduled to be saved in each power demand facility 52.

  The consideration calculating unit 34 may consider the cost generated by the adjustment control when calculating the consideration to be given to the customer 50. In addition, for example, when the electricity storage unit 31 is charged with a part of surplus power during the power saving period, the consideration calculation unit 34 may consider the profit obtained by using the charged power thereafter.

  For example, when the power saving target is achieved in the power demand facility 52, the retailer 30 gives the power saving price calculated by the price calculation unit 34 to the consumer 50 of the power demand facility 52.

  FIG. 10 is a diagram for explaining an example of the relationship between the timings in the power system according to the embodiment of the present invention.

  Referring to FIG. 10, power management device 32 first predicts that power supply and demand will be tight (timing T <b> 1), and then obtains power saving response information from each customer device 51, etc. A plan is created (timing T2). The power management apparatus 32 starts adjustment control of the power storage unit 31 according to the created plan (timing T3).

  The power management apparatus 32 generates the amount of power determined when the plan is created after the adjustment control plan is created (timing T2) and before the start of the power saving period (timing T6). The sale is made at 20 and the transaction is concluded (timing T4). Here, the transaction participant 70 purchases the electric power.

  The power management apparatus 32 ends the adjustment control of the power storage unit 31 (timing T5) before the start of the power saving period (timing T6) according to the prepared adjustment control plan.

  The power management apparatus 32 starts providing control in accordance with the time when the retailer 30 starts supplying power to the transaction participant 70 after the power saving period starts (timing T6) (timing T7).

  Then, before the power saving period ends (timing T9), the power management apparatus 32 ends the provision time control in accordance with the time when the retailer 30 ends the power supply to the transaction participant 70 (timing T8). .

  The retailer 30 may end the power supply to the trading participant 70 after the power saving period ends.

  FIG. 11 is a diagram showing a configuration of a customer device according to the embodiment of the present invention.

  Referring to FIG. 11, customer device 51 includes customer receiver (request receiver) 54, processor 55, equipment controller 56, customer transmitter (suppression information transmitter) 57, and consumption. And a measurement unit 58.

  The customer receiving unit 54 receives the power saving request information transmitted from the power management device 32 and outputs it to the processing unit 55.

  The processing unit 55 receives the power saving request information from the consumer receiving unit 54 and notifies the presentation unit 53 of the content of the power saving request information, specifically, the power saving period and the power saving target.

  The presentation unit 53 displays the content of the power saving request information notified from the processing unit 55 on, for example, a screen provided in the customer device 51.

  The consumer 50 confirms the content of the power saving request information displayed on the screen and determines whether or not the power demand facility 52 participates in power saving. Then, the consumer 50 inputs the determination result to the presentation unit 53 by operating the presentation unit 53.

  The presentation unit 53 notifies the processing unit 55 of the determination result by the customer 50. In response to the notification from the presentation unit 53, the processing unit 55 creates power saving response information indicating whether or not the power demand facility 52 participates in power saving.

  The customer transmission unit 57 transmits the power saving response information created by the processing unit 55 to the power management apparatus 32.

  In addition, when the power saving response information indicating participation in power saving is created, the processing unit 55 creates a power saving plan that can achieve the power saving target in the power saving period. The power saving plan is, for example, a control plan for equipment provided in the power demand facility 52, specifically, the load 61, the storage battery 62, and the power generation device 63.

  The equipment control unit 56 controls the load 61, the storage battery 62, and the power generation device 63 according to the control plan created by the processing unit 55.

  The consumption measuring unit 58 measures, for example, the power consumption of the load 61, the charging power or discharging power of the storage battery 62, and the generated power of the power generation device 63, and outputs the measurement result to the processing unit 55.

  The customer receiving unit 54 receives the suppression report request transmitted from the power management device 32 and outputs the request to the processing unit 55.

  When the processing unit 55 receives a suppression report request from the consumer reception unit 54, based on the measurement result by the consumption measurement unit 58, the processing unit 55 reports the suppression amount for reporting the power consumption suppression amount in the power demand facility 52 to the power management device 32. Create achievement information. The suppression performance information indicates, for example, the amount of power suppressed due to power saving performed at the power demand facility 52. In addition, the suppression performance information may indicate the power suppressed by power saving, may indicate the amount of power consumed in the power demand facility 52, or indicates the power consumed in the power demand facility 52 Also good.

  The customer transmission unit 57 transmits the suppression record information created by the processing unit 55 to the power management apparatus 32.

  Next, an operation when the power system 101 according to the embodiment of the present invention executes power management processing will be described.

  FIG. 12 is a diagram showing an example of a sequence of power management processing in the power system according to the embodiment of the present invention.

  Referring to FIG. 12, the power management apparatus 32 first performs a process for the retailer 30 to purchase power from the power generator 10. Specifically, the power generator company 11 performs processing for the power generator 10 to sell power to the retailer 30 by communicating with the power management apparatus 32 via the exchange device 21 (not shown). (Step S52). The power management apparatus 32 performs processing for the retailer 30 to purchase power from the power generation company 10 by communicating with the power generation company apparatus 11 via the exchange apparatus 21 (step S52).

  When the retailer 30 purchases power from the power generation company 10, the power is supplied from the power generation company 10 to the retailer 30.

  Next, when the power management device 32 predicts the tightness of power supply and demand based on the information acquired from the exchange device 21 (step S52), the power management device 32 transmits the power saving request information to the customer device 51 in each power demand facility 52. (Step S53).

  Next, the consumer device 51 receives the power saving request information from the power management device 32 and transmits power saving response information indicating whether or not the power demand facility 52 participates in power saving to the power management device 32. Here, the power demand facility 52 transmits power saving response information indicating that it participates in power saving (step S54).

  Next, the power management apparatus 32 performs a plan creation process for adjustment control of the remaining amount of power stored in the power storage unit 31 based on the power saving response information received from each power demand facility 52 (step S55). Specifically, for example, the power management apparatus 32 creates an adjustment control plan according to the procedure described in FIG.

  Next, the power management apparatus 32 performs adjustment control according to the created adjustment control plan (step S56).

  Next, the retailer 30 sells the power that can be provided in the power saving period to the trading participant 70 in the power exchange 20.

  Specifically, the power management apparatus 32 communicates with the participant apparatus 71 via the exchange apparatus 21, thereby performing processing for selling the power to the transaction participant 70 (step S57). At this time, the power management apparatus 32 acquires price information indicating the price for providing power from the transaction participant 70. Moreover, the participant apparatus 71 performs the process for purchasing the said electric power from the electric power generation company 10 by communicating with the power management apparatus 32 via the exchange apparatus 21 (step S58).

  Next, when the power saving period starts, the power demand facility 52 controls power consumption at the power demand facility 52 by controlling the load 61, the storage battery 62, and the power generation device 63 in the power demand facility 52 (step S59). .

  Next, the power management apparatus 32 transmits a suppression report request for requesting a report of the amount of suppression of power consumption to each power demand facility 52 (step S60).

  Next, the consumer device 51 receives a suppression report request from the power management device 32 and transmits suppression result information indicating the amount of suppression of power consumption in its own power demand facility 52 to the power management device 32.

  Next, the retailer 30 provides the trading participant 70 with the amount of power sold to the trading participant 70. The power management apparatus 32 performs the provision time control in accordance with the period during which the retailer 30 provides power to the transaction participant 70 (step S62).

  Moreover, the power management apparatus 32 transmits the suppression report request to each customer apparatus 51 regularly or irregularly until the period when the retailer 30 provides power to the transaction participant 70 ends, for example, Monitor surplus power. Then, the power management apparatus 32 performs provision-time control based on the surplus power monitoring result.

  Next, the power management apparatus 32 calculates the power saving consideration given to the power demanding facility 52 based on the consideration information acquired in the operation shown in step S57, for example (step S63).

  Note that, in the power system 101 according to the embodiment of the present invention, the consumer device 51 is configured to receive power saving request information from the power management device 32 and transmit power saving response information to the power management device 32. However, it is not limited to this.

  For example, the consumer device 51 may be configured to receive power saving request information from the power management device 32 and to transmit suppression amount notification information (suppression amount information) to the power management device 32. The suppression amount notification information is information regarding the planned amount of power consumption suppression, and indicates, for example, a planned value of the power amount that the power demand facility 52 suppresses consumption during the power saving period.

  Specifically, for example, in the power demand facility 52, the presentation unit 53 receives an operation by the consumer 50 and acquires a planned value of the amount of power that is saved in the power saving period in the power demand facility 52. The customer transmission unit 57 transmits suppression amount notification information indicating the scheduled value acquired by the presentation unit 53 to the power management apparatus 32.

  In the power management device 32, information indicating the types of equipment such as the load 61, the storage battery 62, and the power generation device 63 provided in each power demand facility 52 is stored in the storage unit 37 in advance. The power information acquisition unit 36 receives the suppression amount notification information transmitted from the power demand facility 52.

  The charge / discharge control unit 40 uses the information stored in the storage unit 37 to check the type of equipment in the power demand facility 52 that is the transmission source of the suppression amount notification information received by the power information acquisition unit 36. Then, the charge / discharge control unit 40 determines whether or not the scheduled value indicated by the suppression amount notification information is appropriate.

  When the power management device 32 determines that the scheduled value is appropriate, the power management device 32 acquires the scheduled value as the amount of power saved in the power demand facility 52 of the transmission source. On the other hand, when the power management apparatus 32 determines that the scheduled value is not appropriate, the power management device 32 corrects the scheduled value and acquires the corrected scheduled value as the amount of power saved in the power demand facility 52 of the transmission source.

  The charge / discharge control unit 40 predicts the surplus power amount in the power saving period by summing the power amount saved in each power demand facility 52.

  Further, in the power system 101 according to the embodiment of the present invention, the power saving request information transmitted by the power management apparatus 32 is configured to indicate the power saving period and the power saving target. However, the present invention is not limited to this. The power saving request information may indicate a power saving target and may not indicate a power saving period. In this case, for example, the consumer device 51 recognizes a time after a predetermined time from the time when the power saving request information is received as the start time of the power saving period.

  Further, in the power system 101 according to the embodiment of the present invention, the power saving request information transmitted by the power management device 32 is configured to indicate the amount of power to be saved in the power demand facility 52 as a power saving target. However, the present invention is not limited to this, and a target value of power consumption in the power demand facility 52 may be indicated as a power saving target.

  By the way, the transaction unit prescribed | regulated by the electric energy is defined for the electric power transaction in an electric power exchange, and the electric power exchange cannot buy and sell the quantity of electric power which is less than a transaction unit.

  For this reason, the retailer may not be able to effectively use surplus power generated by power saving or the like in the power demand facility.

  In addition, since the surplus power generated by power saving at the power demand facility is not stable, for example, as in the technique described in Patent Document 1, the power generation apparatus provided at each power demand facility is indirectly controlled. Even in this case, it is difficult to make the amount of surplus power into a transaction unit.

  On the other hand, in the power management apparatus according to the embodiment of the present invention, the power information acquisition unit 36 includes supply power information that is information relating to supply power, and one or more power demanding facilities 52 that are power consumption destinations. The power saving response information (suppression amount information) regarding the power consumption suppression amount is acquired. Based on the power saving response information, the charge / discharge control unit 40 performs adjustment control for adjusting the remaining amount of power stored in the power storage unit 31 so that the amount of power provided to the transaction participant 70 becomes a transaction unit in the power exchange 20. In the power system used by the power management apparatus, with respect to surplus power obtained by subtracting the power consumption at each power demand facility 52 from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit 31, or the power storage unit Part or all of the power stored in 31 and the surplus power are provided to the trading participant 70.

  With such a configuration, for example, of the surplus power in the power demand facility 52, an amount of power that satisfies the transaction unit can be provided to the transaction participant 70, and the remaining power can be charged in the power storage unit 31. Thereby, the consideration of the provided power can be received from the trading participant 70, and the power not subject to the transaction is charged and held in the power storage unit 31, and then supplied to, for example, the power demand facility 52 as necessary. Therefore, surplus power can be utilized without waste. In addition, for example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit 31 can be combined to make the amount of power that satisfies the transaction unit. It can be provided to the participant 70 and the consideration of the provided power can be received from the transaction participant 70.

  Therefore, in the power management apparatus according to the embodiment of the present invention, it is possible to effectively use surplus power and enhance the economic effect of power saving.

  In the power management apparatus according to the embodiment of the present invention, the charge / discharge control unit 40 performs adjustment control before the start timing of the power saving period. In the power system, power is provided to the trading participant 70 during the power saving period.

  With such a configuration, when it is determined that a part of surplus power needs to be charged in the power storage unit 31 in order to make the amount of power provided to the transaction participant 70 a predetermined transaction unit, the transaction participant By the start of a power saving period, which is a period during which power is supplied to 70, the remaining power storage capacity of the power storage unit 31 can be reduced to ensure the necessary free capacity. On the other hand, when it is determined that it is necessary to match the surplus power with the power in the power storage unit 31 in order to make the amount of power provided to the trading participant 70 a predetermined transaction unit, the power storage unit It is possible to secure the necessary amount of power by increasing the remaining power storage capacity of 31.

  In the power management apparatus according to the embodiment of the present invention, the charge / discharge control unit 40 determines whether to charge or discharge the power storage unit 31 in the adjustment control according to the length of time until the start timing of the power saving period. decide.

  With such a configuration, for example, when it is determined that a necessary amount of power can be charged by the start of the power saving period, adjustment control for charging the power storage unit 31 is performed, and the necessary amount of power is reduced. When it is determined that charging cannot be performed before the start of the power saving period, it is possible to perform adjustment control for discharging the power storage unit 31 in order to secure the free capacity of the power storage unit 31.

  Moreover, in the power management apparatus according to the embodiment of the present invention, the charge / discharge control unit 40 is configured such that the remaining amount of power stored in the power storage unit 31 in a state where power is provided to the transaction participant 70 is equal to or greater than a predetermined value. In the adjustment control, the remaining power amount is adjusted.

  With such a configuration, for example, the remaining amount of power stored in the power storage unit 31 during supply of power to the transaction participant 70 during the power saving period because the amount of surplus power predicted based on the suppression information has not been obtained. In order to prevent the battery from becoming zero, it is possible to charge the power storage unit 31 more by the start of the power saving period so as to give a margin to the remaining power storage.

  Moreover, in the power management apparatus according to the embodiment of the present invention, the consideration information acquisition unit 33 acquires consideration information indicating the consideration given from the trading participant 70 to the provided power. The price calculation unit 34 calculates the price to be given to the customer 50 of each power demand facility 52 based on the price indicated by the price information and the power saving response information.

  With such a configuration, since the consumer can receive compensation based on surplus power, for example, the customer can be given an incentive to save power during the power saving period, and more surplus power can be generated.

  Moreover, in the power management apparatus according to the embodiment of the present invention, the power information acquisition unit 36 acquires suppression performance information indicating the power consumption suppression amount reported from the power demand facility 52 during the power saving period. The charge / discharge control part 40 adjusts the electric power provided to the transaction participant 70 by controlling charging or discharging of the power storage part 31 based on the suppression record information during the power saving period.

  With such a configuration, for example, the charge amount or the discharge amount of the power storage unit 31 can be adjusted such that the amount of power provided to the transaction participant 70 is a transaction unit. Further, for example, stable power with little fluctuation can be provided to the trading participant 70.

  Further, in the power system according to the embodiment of the present invention, the customer apparatus 51 transmits power saving response information regarding the power consumption suppression amount in the power demand facility 52 to the power management apparatus 32. The power management device 32 receives the power saving response information from the consumer device 51 and stores the power so that the amount of power provided to the trading participant 70 becomes a transaction unit in the power exchange 20 based on the received power saving response information. Adjustment control for adjusting the remaining amount of electricity stored in the unit 31 is performed. The customer apparatus 51 transmits suppression result information indicating the result of the power consumption suppression amount in the power demand facility 52 to the power management apparatus 32. Moreover, about the surplus power obtained by subtracting the power consumption at each power demand facility 52 from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit 31, or a part of the power stored in the power storage unit 31 or All and surplus power is provided to trading participant 70.

  With such a configuration, for example, of the surplus power in the power demand facility 52, an amount of power that satisfies the transaction unit can be provided to the transaction participant 70, and the remaining power can be charged in the power storage unit 31. Thereby, the consideration of the provided power can be received from the trading participant 70, and the power not subject to the transaction is charged and held in the power storage unit 31, and then supplied to, for example, the power demand facility 52 as necessary. Therefore, surplus power can be utilized without waste. In addition, for example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit 31 can be combined to make the amount of power that satisfies the transaction unit. It can be provided to the participant 70 and the consideration of the provided power can be received from the transaction participant 70.

  Therefore, in the power system according to the embodiment of the present invention, it is possible to effectively use surplus power and enhance the economic effect of power saving.

  Moreover, in the consumer apparatus which concerns on embodiment of this invention, the consumer receiving part 54 provides the electric power to the transaction participant 70, and the power management apparatus 32 used by the retailer 30 which can obtain a price. Receive power saving request information from. The consumer transmission unit 57 transmits, to the power management apparatus 32, the power saving response information regarding the power consumption suppression amount in the power demand facility 52 when the power saving request information is received by the customer receiving unit 54. The power management device 32 receives the power saving response information from the consumer device, and stores the power so that the amount of power provided to the trading participant 70 becomes a transaction unit in the power exchange 20 based on the received power saving response information. Adjustment control for adjusting the remaining amount of electricity stored in the unit 31 is performed. In the power system used by the consumer device, with respect to the surplus power obtained by subtracting the power consumption at each power demand facility 52 from the supplied power, the remaining power in which the power storage unit 31 is partially charged or the power storage unit Part or all of the power stored in 31 and the surplus power are provided to the trading participant 70.

  With such a configuration, for example, of the surplus power in the power demand facility 52, an amount of power that satisfies the transaction unit can be provided to the transaction participant 70, and the remaining power can be charged in the power storage unit 31. Thereby, the consideration of the provided power can be received from the trading participant 70, and the power not subject to the transaction is charged and held in the power storage unit 31, and then supplied to, for example, the power demand facility 52 as necessary. Therefore, surplus power can be utilized without waste. In addition, for example, when the amount of surplus power is less than the transaction unit, the surplus power and the power in the power storage unit 31 can be combined to make the amount of power that satisfies the transaction unit. It can be provided to the participant 70 and the consideration of the provided power can be received from the transaction participant 70.

  Therefore, in the consumer apparatus which concerns on embodiment of this invention, the economical effect of power saving can be heightened by utilizing surplus electric power effectively.

  The above embodiment should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The above description includes the following features.

[Appendix 1]
A power management device used in a power system provided with a power storage unit that is used by a business capable of providing power to a business partner and obtaining compensation,
A power information acquisition unit that acquires information on supply power, and suppression amount information on power consumption suppression amount in one or a plurality of power demand facilities that are power consumption destinations;
In the power system, with respect to surplus power obtained by subtracting power consumption at each power demand facility from the supplied power, a part of the surplus power is stored in the power storage unit or the remaining power charged in the power storage unit. A part or all of the generated power and the surplus power are provided to the supplier,
further,
A control unit that performs adjustment control to adjust the remaining amount of power stored in the power storage unit based on the suppression amount information so that the amount of power provided to the supplier is a predetermined transaction unit,
The control unit is configured to determine the contents of the adjustment control, the remaining amount of power storage, the time until power is provided to the business partner, and the predicted value of the amount of power that is surplus in the period during which power is provided to the business partner. , And at least one of a predicted price of power during a period when power is provided to the business partner,
The power storage unit is a power management device including at least one of a lithium ion battery, a redox flow battery, a molten salt battery, a sodium sulfur battery, and a lead battery.

[Appendix 2]
A power management device used by a business that can provide power to a business partner and obtain compensation; and
One or a plurality of customer devices respectively used in one or a plurality of power demanding facilities that are power consumption destinations;
A power storage unit,
For surplus power obtained by subtracting power consumption at each power demand facility from supply power, a part of the surplus power is charged to the power storage unit, or a part or all of the power stored in the power storage unit And the surplus power are provided to the supplier,
The consumer device transmits suppression amount information related to a power consumption suppression amount in the power demand facility to the power management device,
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit Adjustment control to adjust the remaining power of
The consumer device transmits suppression result information indicating a result of a power consumption suppression amount in the power demand facility to the power management device,
The power management device predicts the amount of power to be surplus in the period when power is provided to the business partner, the amount of time until the power is provided to the business partner, the time until power is provided to the business partner, the content of the adjustment control A value and at least one of a predicted price of power during a period when power is provided to the business partner,
The power storage unit is an electric power system including at least one of a lithium ion battery, a redox flow battery, a molten salt battery, a sodium sulfur battery, and a lead battery.

[Appendix 3]
A consumer device used in an electric power system including a power storage unit,
In the power system, for the surplus power obtained by subtracting the power consumption of one or more power demanding facilities that are the power consumption destination from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit, Alternatively, a part or all of the power stored in the power storage unit and the surplus power are provided to the supplier,
A request receiving unit for receiving power saving request information from a power management device used by a business capable of providing power to a business partner and obtaining compensation;
When the power saving request information is received by the request receiving unit, a suppression information transmitting unit that transmits suppression amount information related to a power consumption suppression amount in the power demand facility to the power management device,
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit Adjustment control to adjust the remaining power of
The power management device predicts the amount of power to be surplus in the period when power is provided to the business partner, the amount of time until the power is provided to the business partner, the time until power is provided to the business partner, the content of the adjustment control A value and at least one of a predicted price of power during a period when power is provided to the business partner,
The power storage unit is a consumer device including at least one of a lithium ion battery, a redox flow battery, a molten salt battery, a sodium sulfur battery, and a lead battery.

DESCRIPTION OF SYMBOLS 10 Power generation company 11 Power generation company apparatus 20 Power exchange 21 Exchange apparatus 30 Retail company 31 Power storage part 32 Power management apparatus 33 Consideration information acquisition part 34 Consideration calculation part 35 Demand prediction part 36 Power information acquisition part 37 Storage part 38 Request creation unit 40 Charging / discharging control unit 41 Power saving request transmission unit 50 Customer 51 Customer device 52 Power demand facility 53 Presentation unit 54 Customer reception unit 55 Processing unit 56 Equipment control unit 57 Customer transmission unit 58 Consumption measurement unit 61 Load 62 Storage Battery 63 Power Generation Device 70 Trading Participant 71 Participant Device 80 Electric Power Company 101 Electric Power System

Claims (12)

A power management device used in a power system provided with a power storage unit that is used by a business capable of providing power to a business partner and obtaining compensation,
A power information acquisition unit that acquires information on supply power, and suppression amount information on power consumption suppression amount in one or a plurality of power demand facilities that are power consumption destinations;
In the power system, with respect to surplus power obtained by subtracting power consumption at each power demand facility from the supplied power, a part of the surplus power is stored in the power storage unit or the remaining power charged in the power storage unit. A part or all of the generated power and the surplus power are provided to the supplier,
further,
Based on the suppression amount information, e Bei control unit amount of power provided to the partner performs adjustment control for adjusting a remaining power amount of the power storage unit to a predetermined transaction units,
In the power system, power is provided to the business partner during a power saving period,
The control unit performs the adjustment control before the start timing of the power saving period,
The control unit sets a power storage surplus total amount that is a sum of a power amount that is less than a transaction unit of a surplus power amount in the power saving period and a remaining power storage amount of the power storage unit by the start of the power saving period. A power management device that determines to charge the power storage unit in the adjustment control when it is determined that the power storage unit can be made an integral multiple of the transaction unit by increasing a remaining power storage amount of the power storage unit . Wherein the control section adjusts the remaining power amount in the adjustment control as the remaining power amount of the power storage unit in a state in which power is provided to the partner it is greater than or equal to a predetermined value, according to claim 1 Power management device. The power management device further includes:
A consideration information acquisition unit for acquiring consideration information indicating the consideration given from the supplier to the supplied power;
3. A power management apparatus according to claim 1 , further comprising: a price calculation unit that calculates a price to be given to a consumer of each power demand facility based on the price indicated by the price information and the suppression amount information. . In the power system, power is provided to the business partner during a power saving period,
The power information acquisition unit acquires suppression result information indicating a power consumption suppression amount reported from the power demand facility in the power saving period,
Wherein, in the power saving period, based on the suppression performance information, by controlling the charging or discharging of the power storage unit, for adjusting the power provided to the suppliers, claims 1 to 3 The power management apparatus according to any one of the above. A power system,
A power management device used by a business that can provide power to a business partner and obtain compensation; and
One or a plurality of customer devices respectively used in one or a plurality of power demanding facilities that are power consumption destinations;
A power storage unit,
For surplus power obtained by subtracting power consumption at each power demand facility from supply power, a part of the surplus power is charged to the power storage unit, or a part or all of the power stored in the power storage unit And the surplus power are provided to the supplier,
The consumer device transmits suppression amount information related to a power consumption suppression amount in the power demand facility to the power management device,
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit Adjustment control to adjust the remaining power of
The consumer device transmits suppression result information indicating a result of a power consumption suppression amount in the power demand facility to the power management device ,
In the power system, power is provided to the business partner during a power saving period,
The power management device performs the adjustment control before the start timing of the power saving period,
The power management device is configured to calculate a power storage surplus total amount that is a sum of a power amount that is less than a transaction unit of a surplus power amount in the power saving period and a remaining power storage amount of the power storage unit until the start of the power saving period. If it is determined that an integral multiple of the transaction unit can be obtained by increasing the remaining amount of power stored in the power storage unit, the power control unit determines to charge the power storage unit in the adjustment control . A power system,
A power management device used by a business that can provide power to a business partner and obtain compensation; and
A power storage unit,
With respect to surplus power obtained by subtracting the power consumption of one or more power demanding facilities that are power consumption destinations from the supplied power, a part of the surplus power is stored in the power storage unit or the remaining power charged in the power storage unit A part or all of the generated power and the surplus power are provided to the supplier,
Wherein the power management device, have rows adjustment control amount of power provided to the suppliers to adjust the remaining power amount of the power storage unit to a predetermined transaction units,
In the power system, power is provided to the business partner during a power saving period,
The power management device performs the adjustment control before the start timing of the power saving period,
The power management device is configured to calculate a power storage surplus total amount that is a sum of a power amount that is less than a transaction unit of a surplus power amount in the power saving period and a remaining power storage amount of the power storage unit until the start of the power saving period. If it is determined that an integral multiple of the transaction unit can be obtained by increasing the remaining amount of power stored in the power storage unit, the power control unit determines to charge the power storage unit in the adjustment control . A consumer device used in an electric power system including a power storage unit,
In the power system, for the surplus power obtained by subtracting the power consumption of one or more power demanding facilities that are the power consumption destination from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit, Alternatively, a part or all of the power stored in the power storage unit and the surplus power are provided to a business partner,
A request receiving unit for receiving power saving request information from a power management device used by a business capable of providing power to the business partner and obtaining compensation;
When the power saving request information is received by the request receiving unit, a suppression information transmitting unit that transmits suppression amount information related to a power consumption suppression amount in the power demand facility to the power management device,
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit There line adjustment control for adjusting the storage residual amount,
In the power system, power is provided to the business partner during a power saving period,
The power management device performs the adjustment control before the start timing of the power saving period,
The power management device is configured to calculate a power storage surplus total amount that is a sum of a power amount that is less than a transaction unit of a surplus power amount in the power saving period and a remaining power storage amount of the power storage unit until the start of the power saving period. A consumer device that determines to charge the power storage unit in the adjustment control when it is determined that the power storage unit can be made an integral multiple of the transaction unit by increasing the remaining power storage amount of the power storage unit . A power management method in a power management device used in a power system provided with a power storage unit and used by a business capable of providing power to a business partner and obtaining compensation,
Including the step of obtaining information on power supply, and information on the amount of power consumption in one or more power demanding facilities that are the power consumption destinations.
In the power system, with respect to surplus power obtained by subtracting power consumption at each power demand facility from the supplied power, a part of the surplus power is stored in the power storage unit or the remaining power charged in the power storage unit. A part or all of the generated power and the surplus power are provided to the supplier,
further,
Based on the suppression amount information, see contains the step of adjusting control amount of power provided to the suppliers to adjust the remaining power amount of the power storage unit to a predetermined transaction units,
In the power system, power is provided to the business partner during a power saving period,
In the step of performing the adjustment control, the adjustment control is performed before the start timing of the power saving period,
The power management method further includes:
The power storage surplus amount that is the sum of the amount of power that does not exceed the transaction unit of the power amount that is surplus in the power saving period and the remaining amount of power stored in the power storage unit is stored in the power storage unit before the start of the power saving period. A power management method including a step of determining to charge the power storage unit in the adjustment control when it is determined that an integral multiple of the transaction unit can be obtained by increasing a remaining amount . A power management device used by a business capable of providing power to a business partner to obtain a price, and one or a plurality of customer devices respectively used in one or a plurality of power demand facilities serving as a power consumption destination A power management method in a power system comprising a power storage unit,
In the power system, for the surplus power obtained by subtracting the power consumption at each power demand facility from the supplied power, a part of the surplus power is stored in the power storage unit or the remaining power charged in the power storage unit. A part or all of the power and the surplus power are provided to the supplier,
The consumer device transmitting to the power management device suppression amount information related to a power consumption suppression amount in the power demand facility;
The power storage device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit Performing adjustment control to adjust the remaining amount of electricity stored,
The consumer device, viewed contains and transmitting suppression record information indicating the results of power consumption inhibiting amount in the power demanding facility to the power management device,
In the power system, power is provided to the business partner during a power saving period,
In the step of performing the adjustment control, the power management device performs the adjustment control before the start timing of the power saving period,
The power management method further includes:
The power management device is configured to calculate a power storage surplus total amount that is a sum of a power amount that is less than a transaction unit of a surplus power amount in the power saving period and a remaining power storage amount of the power storage unit until the start of the power saving period. The power management method includes a step of determining to charge the power storage unit in the adjustment control when it is determined that the power can be made an integral multiple of the transaction unit by increasing a remaining power storage amount of the power storage unit . A power management method in a consumer device used in a power system including a power storage unit,
In the power system, for the surplus power obtained by subtracting the power consumption of one or more power demanding facilities that are the power consumption destination from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit, Alternatively, a part or all of the power stored in the power storage unit and the surplus power are provided to a business partner,
Receiving power saving request information from a power management device used by a business capable of providing power to the business partner and obtaining compensation; and
After receiving the power saving request information, transmitting suppression amount information regarding the power consumption suppression amount in the power demand facility to the power management device,
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit There line adjustment control for adjusting the storage residual amount,
In the power system, power is provided to the business partner during a power saving period,
The power management device performs the adjustment control before the start timing of the power saving period,
The power management device is configured to calculate a power storage surplus total amount that is a sum of a power amount that is less than a transaction unit of a surplus power amount in the power saving period and a remaining power storage amount of the power storage unit until the start of the power saving period. The power management method of determining to charge the power storage unit in the adjustment control when it is determined that an integral multiple of the transaction unit can be obtained by increasing a remaining power storage amount of the power storage unit . A power management program used in a power management device used in a power system provided with a power storage unit and used by a business capable of providing power to a business partner and obtaining compensation,
It is a program for executing the step of acquiring information related to power supply and information on the amount of power consumption restraint in one or more power demanding facilities that are power consumption destinations.
In the power system, with respect to surplus power obtained by subtracting power consumption at each power demand facility from the supplied power, a part of the surplus power is stored in the power storage unit or the remaining power charged in the power storage unit. A part or all of the generated power and the surplus power are provided to the supplier,
In addition,
A program for executing a step of performing adjustment control for adjusting the remaining amount of electricity stored in the electricity storage unit so that the amount of power provided to the supplier is a predetermined transaction unit based on the suppression amount information ,
In the power system, power is provided to the business partner during a power saving period,
In the step of performing the adjustment control, the adjustment control is performed before the start timing of the power saving period,
In addition,
The power storage surplus amount that is the sum of the amount of power that does not exceed the transaction unit of the power amount that is surplus in the power saving period and the remaining amount of power stored in the power storage unit is stored in the power storage unit before the start of the power saving period. A power management program for executing a step of determining that the power storage unit is charged in the adjustment control when it is determined that the transaction unit can be made an integral multiple by increasing the remaining amount . A power management program used in a consumer device used in a power system including a power storage unit,
In the power system, for the surplus power obtained by subtracting the power consumption of one or more power demanding facilities that are the power consumption destination from the supplied power, the remaining power in which a part of the surplus power is charged in the power storage unit, Alternatively, a part or all of the power stored in the power storage unit and the surplus power are provided to a business partner,
On the computer,
Receiving power saving request information from a power management device used by a business capable of providing power to the business partner and obtaining compensation; and
After receiving the power saving request information, a program for executing a step of transmitting to the power management device suppression amount information related to a power consumption suppression amount in the power demand facility,
The power management device receives the suppression amount information from the consumer device, and based on the received suppression amount information, the power storage unit so that the amount of power provided to the customer is a predetermined transaction unit There line adjustment control for adjusting the storage residual amount,
In the power system, power is provided to the business partner during a power saving period,
The power management device performs the adjustment control before the start timing of the power saving period,
The power management device is configured to calculate a power storage surplus total amount that is a sum of a power amount that is less than a transaction unit of a surplus power amount in the power saving period and a remaining power storage amount of the power storage unit until the start of the power saving period. A power management program that determines that the power storage unit is charged in the adjustment control when it is determined that an integral multiple of the transaction unit can be obtained by increasing the power storage amount of the power storage unit .

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