JP2012230441A - Electric power management server and electric power management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric power management server and an electric power management system capable of providing another incentive for a user to install a dispersed power source by offering the user a method for utilizing electricity other than electric power selling.SOLUTION: An electric power management server communicates with a user control device installed in a place of a user who owns a dispersed electric power source capable of reversing electric power flow to a power system and with a shop control device installed in a shop. The electric power management server has: a user side receiving section which receives, from the user control device, user information to identify the user as well as reverse power flow information about a reverse power flow amount reversed to the power system by the user; a management section which manages the user information in association with the reserve power flow information; and a shop side receiving section which receives the user information as well as power consumption information consumed by the shop from the shop control device. The management section updates the reverse power flow information in accordance with the consumption information received by the shop side receiving section.

Description

  The present invention relates to a power management server and a power management system that communicate between a customer control device provided in a customer having a distributed power source capable of reverse power flow in a power system and a store control device provided in a store.

  In recent years, from the viewpoint of environmental protection, interest in renewable energy has increased for the purpose of reducing CO2 emissions. Under such circumstances, instead of gasoline-powered vehicles, electric vehicles are becoming popular, and charging services for electric vehicles in stores are also starting.

  On the other hand, even among electric power consumers such as ordinary households, an increasing number of consumers are provided with distributed power sources such as solar cells. A consumer with such a distributed power source can connect the distributed power source and the power system, and if the power generated by the distributed power source exceeds the customer's power demand and becomes surplus, It is possible to reversely flow power to the grid and sell it to an electric power company (for example, see Patent Document 1).

  In this way, for customers, there is also an advantage that the cost at the time of installation of the distributed power supply can be recovered by selling the reverse power flow to the electric power company, so when installing the distributed power supply to the consumer, It has become one of the motivations.

JP 2003-259551 A

  However, in the consumer, when the power generated by the distributed power supply becomes surplus, there is no use method other than selling power. Accordingly, a consumer who does not have a distributed power supply cannot sufficiently increase the willingness to newly install a distributed power supply, and another utilization method that motivates the installation of the distributed power supply has been demanded.

  Therefore, the present invention has been made to solve the above-described problems, and it is possible to provide a new motivation to install a distributed power source in a consumer by providing a usage method other than power sale. An object of the present invention is to provide a power management server and a power management system.

  In order to solve the above-described problems, the present invention has the following features. First, the power management server according to the present invention is characterized by a customer control device (customer control device 110) provided in a customer (customer 100) having a distributed power source (solar cell 120) capable of reverse power flow in the power system. And a power management server (power management server 300) that communicates with a store control device (store control device 210) provided in the store (store 200), the customer information for identifying the consumer, A consumer-side receiving unit (customer-side receiving unit 311) that receives, from the consumer control device, reverse power flow information related to reverse power flow that has been reversely flowed to the power system in the consumer, and the customer information The store side which receives the management unit (reverse flow management unit 332) that associates and manages the reverse flow information, the consumer information, and consumption information consumed in the store from the store control device And a signal portion (shop side receiving unit 312), the management unit, on the basis of the consumption information received by the store-side receiving section, and summarized in that updating the backward flow information.

  A second feature of the power management server according to the present invention relates to the above feature, wherein the store-side receiving unit receives power consumption information indicating power consumed in the store as the consumption information, The gist of the management unit is to update the reverse flow information based on the power consumption information.

  A third feature of the power management server according to the present invention relates to the second feature, wherein the management unit is calculated according to the consumer information, the reverse flow power amount, and the reverse flow power amount. The store-side receiving unit receives consumption amount information indicating the amount consumed at the store as the consumption amount information, and the management unit receives the consumption amount information. The gist is to update the reverse flow power amount and the reverse flow amount based on the amount information.

  The power management system according to the present invention is characterized in that a consumer control device provided in a consumer having a distributed power source capable of reverse power flow in a power system, a store control device provided in a store, the consumer control device and the store control A power management system (power management system 1) including a power management server that communicates with a device, wherein the consumer control device measures a reverse power flow amount that is reverse power flow to the power system. A measurement unit (reverse flow measurement unit 113); and a transmission unit that transmits customer information for identifying the customer and reverse flow information regarding the reverse flow power amount to the power management server, and the store control device includes: The acquisition unit (store information acquisition unit 214) for acquiring the consumer information and the consumption information consumed in the store, and the transmission for transmitting the consumer information and the consumption information to the power management server The power management server associates the consumer information and the reverse flow information with the consumer side reception unit that receives the customer information and the reverse flow information from the consumer control device. A management unit that manages, and a store-side receiving unit that receives the customer information and consumption information from the store control device, the management unit based on the consumption information received by the store-side receiving unit The gist is to update the reverse power flow information.

  According to the present invention, it is possible to provide a power management server and a power management system that can provide a new motivation to install a distributed power source in a consumer by providing a usage method other than power sale.

FIG. 1 is a schematic configuration diagram showing the configuration of the power management system according to the first embodiment of the present invention. FIG. 2 is a diagram showing the configuration of the power management server according to the first embodiment of the present invention. FIG. 3 is a diagram illustrating an example of a table stored in the storage unit of the power management server according to the first embodiment of the present invention. FIG. 4 is a sequence diagram showing an operation of the power management system according to the first embodiment of the present invention. FIG. 5 is a sequence diagram showing the operation of the power management server according to the first embodiment of the present invention. FIG. 6 is a diagram illustrating an example of a table stored in the storage unit of the power management server according to the second embodiment of the present invention. FIG. 7 is a sequence diagram showing an operation of the power management system according to the second embodiment of the present invention. FIG. 8 is a sequence diagram showing the operation of the power management server according to the second embodiment of the present invention.

[First embodiment]
Next, a first embodiment of the present invention will be described with reference to the drawings. Specifically, (1) Configuration of power management system, (2) Configuration of customer control device, (3) Configuration of store control device, (4) Configuration of power management server, (5) Operation of power management system (6) Operation of the power management server, (7) Operation and effect will be described. In the description of the drawings in the following embodiments, the same or similar parts are denoted by the same or similar reference numerals.

(1) Configuration of Power Management System FIG. 1 is a schematic configuration diagram of a power management system 1 according to the present embodiment. The power management system 1 includes a customer control device 110 provided in a customer 100 including a solar battery 120, a store control device 210 provided in a store 200, and a power management that manages the customer control device 110 and the store control device 210. And a server 300.

  The customer control device 110, the store control device 210, and the power management server 300 communicate via the wide area network 50. Further, the consumer control device 110 is connected to the power system 20 and controls the power supplied from the power system 20 in the customer 100. The store control device 210 is also connected to the power system 20 and controls the power supplied from the power system 20 in the store 200.

  In addition, the consumer 100 according to the present embodiment is assumed to be a general household in which the solar battery 120 as a distributed power source capable of reverse power flow is provided in the power system 20.

  Further, the store 200 according to the present embodiment is assumed to be a store that has facilities capable of charging the electric vehicle 150 and provides a charging service for charging the electric vehicle 150 with electric power from the power system 20.

(2) Configuration of Customer Control Device Next, the configuration of the customer control device 110 will be described. The consumer control device 110 is provided in the consumer 100 having the solar battery 120 that can be reversely flowed in the power system 20, and can perform power control of devices in the consumer 100. The customer 100 is provided with an electric vehicle 150 as one of load devices. The customer 100 is provided with lighting, an air conditioner, a refrigerator, a heat accumulator, and the like as load equipment, but the description thereof is omitted here.

  The consumer control device 110 is connected to a solar battery 120 as a distributed power source provided in the consumer 100. The consumer control device 110 includes a communication unit 111, a customer control unit 112, and a reverse power flow measurement unit 113.

  The communication unit 111 communicates with the power management server 300 via the wide area communication network 50. In addition, the communication unit 111 transmits various information output from the customer control unit 112 and the reverse power flow measurement unit 113 to the power management server 300.

  The consumer control unit 112 can convert AC power supplied from the power system 20 into DC power, and supply this DC power to a storage battery of the electric vehicle 150 or the like. The customer control unit 112 can convert the DC power generated by the solar battery 120 into AC power and supply it to load equipment provided in the customer 100. The customer control unit 112 can convert the DC power generated by the solar battery 120 into AC power and cause the power grid 20 to flow backward.

  The reverse power flow measurement unit 113 measures the reverse power flow amount that is reversely flowed to the power system. Moreover, the reverse power flow measurement unit 113 transmits the measured reverse power flow amount and customer information for identifying the customer 100 to the power management server 300 via the communication unit 111. Note that the communication unit 111 configures a transmission unit that transmits customer information and reverse power flow information related to reverse power flow to the power management server 300.

  Here, the customer information is information for identifying the customer 100, may be information for identifying the individual of the user of the customer 100, or may be information for identifying the family of the customer 100. Good. By storing this customer information in a card that is a storage medium, the user can carry it to the store 200 or the like. In the present embodiment, the reverse power flow information will be described as reverse power flow energy information indicating reverse power flow energy.

(3) Configuration of Store Control Device The configuration of the store control device 210 will be described. The store control device 210 includes a communication unit 211, a store control unit 212, a store charging unit 213, and a store information acquisition unit 214.

  The communication unit 211 communicates with the power management server 300 via the wide area communication network 50. In addition, the communication unit 211 transmits various information output from the store control unit 212, the store charging unit 213, the store information acquisition unit 214, and the like to the power management server 300 via the wide area communication network 50.

  The store control unit 212 controls the electric power supplied from the power system 20 to the load device provided in the store 200. Further, the store control unit 212 performs power control supplied to the electric vehicle 150 connected to the store charging unit 213.

  The store charging unit 213 is connected to the power grid 20 and the storage battery of the electric vehicle 150 owned by the user who has visited the store 200. The store charging unit 213 can charge the storage battery of the electric vehicle 150 with electric power. The store charging unit 213 measures the power consumption consumed by the charging and outputs it to the store information acquiring unit 214.

  The store information acquisition unit 214 acquires customer information for identifying the customer 100 and consumption information consumed at the store. Here, in the present embodiment, customer information is stored in a card owned by a user who has visited the store 200. In the present embodiment, the consumption information is power consumption information indicating the power consumption measured by the store charging unit 213.

  Specifically, the store information acquisition unit 214 reads customer information stored in a card owned by a user who has visited the store 200 and acquires customer information. Further, the store information acquisition unit 214 acquires the power consumption amount output from the store charging unit 213 as the power consumption amount information.

  The store information acquisition unit 214 transmits the acquired customer information and power consumption information to the power management server 300 via the communication unit 211. The communication unit 211 configures a transmission unit that transmits customer information and consumption information to the power management server 300.

(4) Power Management Server Next, the configuration of the power management server 300 according to the present embodiment will be described. The power management server 300 according to the present embodiment includes a communication unit 310, a storage unit 320, and a processing unit 330.

  The communication unit 310 communicates between the customer control device 110 and the store control device 210 via the wide area communication network 50. In addition, the communication unit 310 includes a consumer side reception unit 311, a store side reception unit 312, and a transmission unit 313.

  The consumer side receiving unit 311 receives consumer information for identifying the consumer 100 and reverse flow information regarding the reverse flow power amount from the consumer control device 110. In addition, in this embodiment, the case where the consumer side receiving part 311 receives the reverse power flow energy information which shows the reverse power flow energy reversely flowed from the consumer 100 to the electric power grid | system 20 as reverse power flow information. I will give you a description.

  The store-side receiving unit 312 receives customer information and power consumption information from the store control device 210.

  The transmission unit 313 transmits various information output from the control unit 331 and the reverse power flow management unit 332 to the customer control device 110 or the store control device 210 via the wide area communication network 50.

  The storage unit 320 stores a program executed by the processing unit 330 and is used as a work area during execution of the program by the processing unit 330.

  As illustrated in FIG. 3, the storage unit 320 according to the present embodiment stores customer information for identifying the customer 100 and the reverse power flow amount that is reversely flowed to the power system 20 in association with each other. These pieces of information are stored by the processing unit 330 (reverse power flow management unit 332) described later.

  The processing unit 330 performs processing according to a program stored in the storage unit 320. The processing unit 330 includes a control unit 331 and a reverse power flow management unit 332. The control unit 331 performs various controls in the power management server 300.

  The reverse power flow management unit 332 manages the customer information and the reverse power flow amount in association with each other. Specifically, when the consumer side reception unit 311 receives the customer information and the reverse power flow energy information, the reverse power flow management unit 332 associates the customer information and the reverse power flow energy information, Store in the storage unit 320. After this, when the customer information and the reverse power flow energy information are received, the reverse power management unit 332 calculates the total value of each received reverse power flow energy information, and this total value. And stored in the storage unit 320 in association with customer information.

  Further, the reverse power flow management unit 332 updates the reverse power flow energy information based on the power consumption information received by the store side reception unit 312. Specifically, when the store side receiving unit 312 receives the customer information and the power consumption information, the reverse flow management unit 332 refers to the storage unit 320 and stores it in association with the customer information. Identify the reverse power flow energy information.

  Subsequently, the reverse power flow management unit 332 compares the identified reverse power flow energy information with the power consumption indicated in the power consumption information, and determines whether or not the reverse power flow information is greater than or equal to the power consumption. Determine. When the reverse power flow management unit 332 determines that the reverse power flow power amount information is greater than or equal to the power consumption amount, the reverse power flow management unit 332 subtracts the power consumption amount from the reverse power flow power amount information and stores the subtraction result in the storage unit 320.

  On the other hand, when it is determined that the reverse power flow amount information is not equal to or greater than the power consumption amount, the reverse flow management unit 332 calculates a difference between the reverse flow power amount information and the power consumption amount as a shortage power amount. The reverse power flow management unit 332 calculates the shortage amount by multiplying the shortage amount by a predetermined conversion rate. The reverse power flow management unit 332 notifies the store control device 210 of the shortage amount via the communication unit 310. If the reverse power flow management unit 332 determines that the reverse power flow energy information is not equal to or greater than the power consumption, the reverse power flow energy information is stored in the storage unit 320 as zero.

(5) Operation of Power Management System Next, the operation of the power management system 1 will be described. FIG. 4 is a sequence diagram showing the operation of the power management system 1.

  In step S <b> 10, the customer control device 110 measures the reverse flow power amount that is reversely flowed to the power system 20 among the power amount generated from the solar battery 120.

  In step S <b> 20, the consumer control device 110 transmits reverse power flow energy information indicating the reverse power flow energy and customer information for identifying the customer 100 to the power management server 300. In addition, the operation | movement of step S10 thru | or step S20 may be repeatedly performed whenever the reverse flow electric energy is measured in the consumer control apparatus 110. FIG.

  In step S30, when the power management server 300 receives the reverse flow power amount information and the customer information, the power management server 300 stores the information in association with each other. In addition, when the reverse flow power amount information and the customer information are repeatedly received from the customer 100 identified by the customer information, the power management server 300 calculates the total value of the received reverse flow power amounts as the demand. Store in association with house information.

  In step S40, for example, when power is consumed by charging the storage battery of the electric vehicle 150 owned by the user who visits the store 200, the store control device 210 indicates power consumption information indicating the consumed power amount at this time. Is acquired as consumption information. In addition, the store control device 210 acquires customer information from a card owned by the user.

  In step S <b> 50, the store control device 210 transmits customer information and power consumption information to the power management server 300.

  In step S60, the power management server 300 receives customer information and power consumption information. The power management server 300 specifies the reverse power flow energy stored in association with the received customer information. In addition, the power management server 300 updates the specified reverse flow power amount based on the power consumption amount indicated in the received power consumption amount information.

  In step S <b> 70, the power management server 300 reports the update result to the store control device 210. At this time, the power management server 300 reports the completion of processing to the store control device 210 if the reverse flow power amount is equal to or greater than the power consumption amount. On the other hand, if the reverse flow power amount is not equal to or greater than the power consumption amount, the power management server 300 calculates a shortage amount according to the shortage power amount and reports the calculated shortage amount to the store control device 210.

(6) Operation of Power Management Server Next, the operation of the power management server 300 in step S60 described above will be specifically described with reference to FIG. FIG. 6 is a sequence diagram showing the operation of the power management server 300.

  First, in step S601, in the power management server 300, the store-side receiving unit 312 receives power consumption amount information and customer information.

  In step S602, the reverse flow management unit 332 specifies the reverse flow power amount stored in association with the received customer information. Further, the reverse power flow management unit 332 determines whether or not the specified reverse power flow power amount is equal to or greater than the power consumption amount indicated in the power consumption amount information.

  In step S603, when the reverse power flow management unit 332 determines that the reverse power flow amount is greater than or equal to the power consumption amount, the power flow amount is subtracted from the reverse power flow amount, and the subtraction result is stored as a reverse power flow amount. Stored in 320.

  In step S <b> 604, the reverse power flow management unit 332 reports the update completion to the store control device 210 via the communication unit 310.

  On the other hand, when it is determined in step S605 that the reverse power flow amount is not equal to or greater than the power consumption amount, the reverse power flow management unit 332 calculates the difference between the reverse power flow amount and the power consumption amount as the insufficient power amount. The reverse power flow management unit 332 calculates the shortage amount by multiplying the shortage amount by a predetermined conversion rate. At this time, the reverse flow management unit 332 stores the reverse flow power amount in the storage unit 320 as zero.

  For example, when the reverse power flow amount is “100 kWh” and the power consumption amount is “120 kWh”, the reverse power flow management unit 332 calculates the insufficient power amount “20 kWh”. The reverse power flow management unit 332 multiplies the insufficient power amount “20 kWh” by the conversion rate “20 yen / kWh” to calculate a shortage amount “400 yen”.

  In step S606, the reverse power flow management unit 332 reports the shortage amount (for example, “400 yen”) to the store control device 210 via the communication unit 310. After that, the store control device 210 displays the insufficient amount on a display unit (not shown) or the like and notifies the user.

(7) Operation and Effect In the first embodiment described above, in the power management server 300, the reverse flow management unit 332 manages the customer information transmitted from the consumer control device 110 and the reverse flow electric energy in association with each other. . In addition, when the power management server 300 receives the customer information and the power consumption amount from the store control device 210, the power management server 300 specifies the reverse power flow amount stored in association with the customer information and based on the power consumption amount. Then, the reverse flow power amount stored in the storage unit 320 is updated.

  According to the power management server 300, when power is consumed in the store 200, the reverse power flow from the solar battery 120 in the customer 100 can be used. That is, according to the power management server 300, it is possible to provide a new usage method other than the power sale in which the reverse flow power that has been conventionally sold only can be used in the store 200. Therefore, according to the power management server 300, it is possible to provide new motivation for installing the solar cell 120 to the consumer 100 and contribute to the popularization of the solar cell 120.

  In the power management server 300, the reverse flow management unit 332 determines whether or not the reverse flow power amount indicated in the stored reverse flow power amount information is greater than or equal to the power consumption amount indicated in the power consumption amount information. If the reverse power flow management unit 332 determines that the reverse power flow amount is not equal to or greater than the power consumption amount, the reverse power flow management unit 332 calculates the shortage amount based on the difference between the reverse power flow amount and the power consumption amount, and the store control device 210 Send to.

  According to such a power management server 300, even when the reverse power flow amount of the customer 100 is not equal to or more than the power consumption amount in the store 200, the user pays the amount of money securely by paying the shortage amount. Is possible.

(8) Modification Example According to First Embodiment Next, a modification example according to the above-described first embodiment will be described. In the power management server 300 according to the above-described embodiment, when the customer information and the power consumption information are received, the power consumption is simply subtracted from the reverse power flow amount.

  The power management server 300 according to this modified example is configured to calculate, as an incentive to the store 200, a result obtained by adding a predetermined ratio to the power consumption amount as the power consumption amount. Specifically, when the store-side receiving unit 312 receives the customer information and the power consumption information, the reverse flow management unit 332 multiplies the power consumption indicated by the power consumption information by a predetermined ratio to generate an incentive. The power consumption amount including the power amount is calculated.

  For example, assuming that the power consumption is “50 kWh” and the predetermined ratio is “110%”, the reverse flow management unit 332 multiplies the power consumption “50 kWh” by the predetermined ratio “110%” to obtain the power consumption. As a result, “55 kWh” is calculated. In this case, the incentive power amount to the store 200 is “5 kWh”.

  The subsequent operation of the power management server 300 is the same as the operation of steps S602 to S606 shown in FIG. 5 described above. Note that the power management server 300 may report the update result including the incentive power amount in step S604 or S605 in which the update result is reported to the store control apparatus 210.

  According to the power management server 300 according to this modified example, the amount of power consumption is calculated in consideration of the incentive power amount of the store 200. Therefore, even in the store 200 provided with the store control device 210, the motive for providing the store control device 210 It can have additional advantages. In the above example, the incentive power amount is the incentive power amount for the store 200, but may be the incentive power amount for the operation of the power management server 300.

[Second Embodiment]
Next, a second embodiment of the present invention will be described with reference to the drawings. Specifically, (1) the configuration of the power management server, (2) the operation of the power management system, (3) the operation of the power management server 300, and (4) the actions and effects will be described.

(1) Configuration of Power Management Server In the power management server 300 according to the first embodiment described above, the information stored in the storage unit 320 by the reverse power flow management unit 332 based on the power consumption consumed in the store 200. Was configured to update. The power management server 300 according to the present embodiment is configured to update information stored in the storage unit 320 based on consumption amount information when a user purchases a product in the store 200.

  Specifically, in the power management server 300 according to the present embodiment, the reverse flow management unit 332 associates customer information, reverse flow power amount, and reverse flow amount information calculated according to the reverse flow power amount. Manage. Here, the reverse flow amount information is a value calculated by multiplying the reverse flow power amount by a predetermined conversion rate.

  The reverse power flow management unit 332 according to the present embodiment receives a customer information and reverse power flow energy information at the consumer side reception unit 311, and a predetermined conversion rate (for example, conversion rate “20 yen / kWh”). To calculate the reverse flow amount. Further, as shown in FIG. 6, the reverse flow management unit 332 associates the customer information, the reverse flow power amount, and the calculated reverse flow amount with each other and stores them in the storage unit 320.

  The store-side receiving unit 312 according to the present embodiment receives consumption amount information indicating the amount consumed at the store as the consumption amount information. Further, the reverse flow management unit 332 updates the reverse flow power amount and the reverse flow amount information based on the consumption amount information received by the store side reception unit 312.

  Specifically, when the store side receiving unit 312 receives customer information and consumption amount information, the reverse flow management unit 332 refers to the storage unit 320 and stores the reverse flow stored in association with the customer information. The tidal power amount information and the reverse tidal amount information are specified.

  Further, the reverse flow management unit 332 determines whether or not the reverse flow amount indicated in the specified reverse flow amount information is equal to or greater than the consumption amount indicated in the consumption amount information. When the reverse flow management unit 332 determines that the reverse flow amount is greater than or equal to the consumption amount, the reverse flow management unit 332 subtracts the consumption amount from the reverse flow amount and stores the subtraction result in the storage unit 320 as the reverse flow amount.

  On the other hand, if the reverse flow management unit 332 determines that the reverse flow amount is not equal to or greater than the consumption amount, it calculates the difference between the reverse flow amount and the consumption amount as a shortage amount, and notifies the store control device 210 of the shortage amount. . At this time, the reverse flow management unit 332 stores the reverse flow power amount in the storage unit 320 as zero.

(2) Operation of Power Management System Next, the operation of the power management system 1 according to the present embodiment will be described with reference to FIG. In addition, since the operation | movement of step S10 thru | or 20 is the same as that of 1st Embodiment mentioned above, description is abbreviate | omitted here.

    In step S31, when the power management server 300 receives the customer information and the reverse flow power amount information, the power management server 300 multiplies the reverse flow power amount indicated in the reverse flow power amount information by a predetermined conversion rate to obtain the reverse flow amount. calculate. The power management server 300 associates the customer information, the reverse flow power amount, and the reverse flow amount with each other and stores them in the storage unit 320.

  In step S <b> 41, the store control device 210 acquires consumption amount information indicating consumption amount that the user should pay when a product is purchased by a user who has visited the store 200 as consumption amount information. In addition, the store control device 210 acquires customer information from a card owned by the user.

  In step S <b> 51, the store control device 210 transmits consumption amount information and customer information to the power management server 300.

  In step S61, the power management server 300 receives the consumption amount information and the customer information. The power management server 300 identifies the reverse flow amount and the reverse flow power amount stored in association with the received customer information. Further, the power management server 300 updates the identified reverse flow amount and reverse flow power amount based on the consumption amount indicated in the received consumption amount information.

  In step S <b> 71, the power management server 300 reports the update result to the store control device 210. At this time, the power management server 300 reports the completion of processing to the store control device 210 if the reverse flow amount is equal to or greater than the consumption amount. On the other hand, the power management server 300 reports the shortage amount to the store control device 210 if the reverse flow amount is not greater than the consumption amount.

(3) Operation of Power Management Server Next, the operation of the power management server 300 according to the present embodiment will be described with reference to FIG. FIG. 8 shows an operation when the power management server 300 receives customer information and consumption amount information from the store control device 210 in step S61 described above.

  In step S <b> 611, in the power management server 300, the store-side receiving unit 312 receives consumption amount information and customer information from the store control device 210.

  In step S612, the reverse flow management unit 332 refers to the storage unit 320 and identifies the reverse flow power amount and the reverse flow amount stored in association with the received customer information. Further, the reverse flow management unit 332 determines whether or not the specified reverse flow amount is equal to or greater than the consumption amount indicated in the consumption amount information.

  If the reverse flow management unit 332 determines in step S613 that the reverse flow amount is greater than or equal to the consumption amount, the reverse flow amount is subtracted from the reverse flow amount and the subtraction result is stored in the storage unit 320 as the reverse flow amount. At this time, the reverse power flow management unit 332 divides a reverse flow amount of the subtraction result by a predetermined conversion rate (for example, the conversion rate “20 yen / kWh”) to calculate the reverse power flow amount. . The reverse power flow management unit 332 stores the reverse flow power amount of the division result in the storage unit 320.

  In step S614, the reverse power flow management unit 332 reports the completion of the update to the store control device 210 via the communication unit 310. Note that the reverse flow management unit 332 may also report the reverse flow amount subtraction result (balance) to the store control device 210.

  On the other hand, in step S615, when the reverse flow management unit 332 determines that the reverse flow amount is not equal to or greater than the consumption amount, the difference between the reverse flow amount and the consumption amount is calculated as a shortage amount. At this time, the reverse flow management unit 332 stores the reverse flow power amount in the storage unit 320 as zero.

  In step S616, the reverse power flow management unit 332 notifies the store control device 210 of the insufficient amount via the communication unit 310.

(4) Action and Effect The power management server 300 according to the present embodiment manages customer information, reverse flow power amount, and reverse flow amount in association with each other. In addition, when the power management server 300 receives the consumption amount consumed by purchasing the product in the store 200, the power management server 300 updates the reverse flow power amount and the reverse flow amount based on the consumption amount.

  As described above, according to the power management server 300 according to the present embodiment, the reverse flow power generated by the power generation of the solar cell 120 of the customer 100 even for the consumption amount consumed when purchasing the product in the store 200. You can use the reverse flow amount converted to the amount. That is, according to the power management server 300, a new utilization method other than the power sale in which the reverse power flow power that has been conventionally sold only can be used for payment when purchasing a product at the store 200 is provided. Can do. Therefore, according to the power management server 300, it is possible to provide new motivation for installing the solar cell 120 as a distributed power source to the customer 100 and contribute to the popularization of the solar cell 120.

[Other Embodiments]
As mentioned above, although this invention was described by embodiment, it should not be understood that the description and drawing which form a part of this indication limit this invention. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, in the above-described embodiment, the store information acquisition unit 214 of the store control device 210 is configured to acquire customer information from a card as a storage medium, but the electric vehicle 150 is connected to the store control device 210. When it is done, it may be configured to obtain from a storage unit (not shown) provided in the electric vehicle 150.

  In the above-described embodiment, the consumer is described as a general household, but the consumer may be an organization such as a company. Further, in the store control apparatus 210 according to the above-described embodiment, the electric power for charging the electric vehicle 150 is acquired as the power consumption amount. For example, any device that can be charged such as a mobile device can be used. Even with such a device, the power for charging can be acquired as the power consumption.

  Further, the power management server 300 according to the above-described embodiment may be provided in a device called CEMS (Community Energy Management System) in the smart grid technology. In the above-described embodiment, the function of the customer control device 110 may be provided in a device referred to as HEMS (Home Energy Management System) or in smart grid technology such as BEMS (Building and Energy Management System). It may be applied to various systems.

  The “reverse power flow information” in the present invention has been described as the reverse power flow amount in the above-described embodiment, but the reverse flow power amount converted into a monetary amount, or the power amount converted into other numerical values. There may be. Further, in the above-described embodiment, the “consumption information” in the present invention has been described as the amount of power consumed by the store and the amount of power consumed by converting the amount of power consumed, but the amount of power consumed is converted to other numerical values. Alternatively, it may be a purchase amount of goods purchased at a store.

  Further, the above-described embodiment and modification examples can be combined. Thus, it should be understood that the present invention includes various embodiments and the like not described herein. Therefore, the present invention is limited only by the invention specifying matters in the scope of claims reasonable from this disclosure.

DESCRIPTION OF SYMBOLS 1 ... Power management system, 20 ... Electric power system, 50 ... Wide area communication network, 110 ... Consumer control apparatus, 111 ... Communication part, 112 ... Consumer control part, 113 ... Reverse power flow measurement part, 121 ... Solar cell, 150 ... Electric vehicle 210 ... Store control device 211 ... Communication unit 212 ... Store control unit 213 ... Store charging unit 214 ... Store information acquisition unit 300 ... Power management server 310 ... Communication unit 311 ... Receiver side reception 312 ... store side receiving part, 313 ... transmitting part, 320 ... storage part, 330 ... processing part, 331 ... control part, 332 ... reverse power flow management part

Claims (4)

A power management server that communicates between a consumer control device provided in a consumer having a distributed power source capable of reverse power flow in the power system, and a store control device provided in the store,
A consumer side receiving unit that receives from the consumer control device consumer information for identifying the consumer, and reverse power flow information relating to a reverse power flow amount reversely flowed to the power system in the consumer;
A management unit that manages the customer information and the reverse flow information in association with each other;
A store-side receiving unit that receives the consumer information and consumption information consumed in the store from the store control device;
The said management part updates the said reverse power flow information based on the consumption information received by the said shop side receiving part, The power management server characterized by the above-mentioned. The store-side receiving unit receives power consumption information indicating the power consumed in the store as the consumption information,
The power management server according to claim 1, wherein the management unit updates the reverse power flow information based on the power consumption information. The management unit manages the consumer information, the reverse flow power amount, and the reverse flow amount calculated according to the reverse flow power amount in association with each other,
The store-side receiving unit receives consumption amount information indicating the amount of money consumed in the store as the consumption amount information,
The power management server according to claim 1, wherein the management unit updates the reverse flow power amount and the reverse flow amount based on the consumption amount information. A consumer control device provided in a consumer having a distributed power source capable of reverse power flow in the power system, a store control device provided in a store, and a power management server communicating between the consumer control device and the store control device; A power management system comprising:
The customer control device is:
A reverse power flow measuring unit for measuring a reverse power flow amount reversely flowed to the power system;
A transmission unit that transmits consumer information for identifying the consumer and reverse power flow information related to the reverse power flow amount to the power management server;
The store control device
An acquisition unit that acquires the consumer information and consumption information consumed in the store;
A transmission unit that transmits the consumer information and the consumption information to a power management server;
The power management server
A customer side receiving unit for receiving the customer information and the reverse flow information from the customer control device;
A management unit for managing the customer information and the reverse flow information in association with each other;
A store-side receiving unit that receives the customer information and consumption information from the store control device;
The said management part updates the said reverse power flow information based on the consumption information received by the said shop side receiving part, The power management system characterized by the above-mentioned.

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