JP2013021798A - Power management system, energy management device, information management device, and control device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power management system for managing means and incentive for distributing surplus power under the situation where measures against the surplus power is necessary with increase in power generation means on the consumer side such as introduction of distribution type power supplies on a large scale.SOLUTION: A power management system comprises: power generation means 101 installed on the consumer side for supplying generated power; an end device 102 installed on the consumer side for consuming at least one of the generated power and external power; power storage means 113 installed on the servicer side for storing surplus power that is surplus generated power having not been consumed by the end device 102; a distribution network A109 for supplying a consumer with the external power; a distribution network B110 for the consumer to supply the power storage means 113 with the surplus power; and a control device 115 that controls a connection state of the consumer with the distribution network A109 and the distribution network B110 on the basis of information on the consumer side.

Description

  The present invention relates to a power management system, an energy management device, an information management device, and a control device, and more particularly to utilization of generated surplus power on a customer side of a smart grid.

  In recent years, the spread of distributed power sources such as solar power generation and wind power generation has increased due to the increase in environmental awareness. The distributed power source is system-linked to the power distribution system of the power company, and surplus power when the generated power exceeds the power consumption can be sold to the power company.

  In the future, although further increases in distributed power sources are expected, power adjustment becomes difficult due to problems such as voltage rise in the distribution network caused by unstable output fluctuations of distributed power sources and frequency fluctuations, etc. There is a concern that the reliability of power supply will decrease. Many distributed power sources are installed on the consumer side, and it is necessary to perform power adjustment functions such as output control for voltage stabilization of the distribution network on a community basis.

A microgrid is attracting attention as a system for adjusting power in units of communities. The microgrid can control supply and demand in a small-scale system composed of distributed power sources, power storage devices, demand facilities, etc., in cooperation with the commercial system or isolated from the commercial system. This system can be expected to reduce CO ₂ , maintain power supply reliability, and reduce energy costs.

JP 2008-125290 A JP 2007-287021 A

  As a microgrid that supplies power in units of communities, a high-voltage system customer is separated in order to maintain power supply when a high-voltage system is abnormal, as disclosed in Patent Document 1, and distributed in the low-voltage system. There is a microgrid that enables autonomous operation by a power source.

  Here, in a distribution system in which a large number of distributed power sources are connected to the customer side, voltage stabilization due to the occurrence of reverse power flow is particularly difficult.

  On the other hand, in the microgrid disclosed in Patent Document 1, autonomous operation is possible in the low-voltage system only when the high-voltage system is abnormal, but no countermeasures are taken against reverse power flow in normal times. In addition, since there is only one point of cooperation between the high-voltage system and the low-voltage system, if it takes time to link the systems again, the recovery time of the entire microgrid system is affected.

  In terms of power utilization, servicers (service providers, power providers, etc.) provide incentives that lead to reductions in electricity charges to consumers, and as a service that allows consumers to enjoy benefits, the database A system that provides a more economical power usage plan using the converted power usage information of consumers has been disclosed (see Patent Document 2).

  When measures are taken on the power system side to generate surplus power, it is necessary to install a large-scale storage battery on the system side, to monitor the power network over a wide area, and to take measures to suppress the output of distributed power sources. In order to realize complicated supply and demand adjustment, a large amount of capital investment is required on the electric power company side, and the cost effectiveness of the electric power company is low.

  Moreover, although there is no merit of the output suppression of a distributed power supply also for a consumer side and there exists a need to use up so that surplus electric power is not wasted, the distribution means becomes a subject. In addition, security measures should be taken into account when handling consumer equipment.

  Note that there are two patterns for purchasing power generated on the consumer side: a method of purchasing surplus power that has been reversed by the power company and a method of purchasing all of the power generated by the customer. In the future, surcharge may be added to the electricity bill as the above-mentioned surplus power countermeasure cost, so there is a concern that consumers who do not have distributed power supply facilities will be burdened, what will happen to the power trading scheme in the future Is unclear.

  In addition, in situations where there is a need for surplus power measures due to an increase in power generation means on the consumer side, surplus power is used effectively, and the consumer balances power quality and cost to meet the lifestyle. However, a power management system that integrates customers and servicers has not been established yet.

  The present invention has been made to solve the above-described problems, and appropriately uses reverse power flow to appropriately distribute surplus power, an energy management device, an information management device, An object is to provide a control device.

  The power management system according to the present invention is provided on the consumer side, generates power and generates power and supplies the generated power, and is provided on the consumer side and consumes at least one of the generated power and external power. A power storage means provided on a servicer side for storing surplus power that is not consumed in the consuming device but surplus, and a first wiring network for supplying the external power to the consumer A second wiring network for supplying the surplus power from the consumer to the power storage means, and the first wiring network and the second wiring network of the consumer based on information on the consumer side And a control means for controlling a connection state with respect to.

  According to the power management system of the present invention, a power generation unit that is provided on the consumer side, generates power and supplies the generated power, and is provided on the consumer side and consumes at least one of the generated power and the external power. A consumption device that is provided on a servicer side, stores power that is not consumed in the consumption device, and is stored in surplus power, and first power for supplying the external power to the consumer. Based on the wiring network, the second wiring network for supplying the surplus power from the consumer to the power storage means, and the information on the consumer side, the first wiring network and the second of the consumer By providing the control means for controlling the connection state with respect to the wiring network, it is possible to appropriately distribute the reverse power flow through the second wiring network different from the first wiring network and appropriately use the surplus power.

It is the schematic which shows the whole structure of this invention. It is the schematic which shows the whole structure of the power management system to which a distributed power supply is applied as a premise technique of this invention. It is a conceptual diagram which shows the state transition of a customer's distribution network connection form. It is a schematic block diagram which shows the whole operation | movement flow of the switching method. It is a figure which shows the example of a consumer's electric energy relational expression. It is an example flowchart in the case of performing switching control by comparing a power generation ratio of a consumer with a threshold value. It is an example flowchart of switching control. It is an example flowchart in the case of performing switching control by comparing the power storage ratio of the power storage means and a threshold value. It is an example flowchart which determines the switching priority of a consumer. It is a figure which shows the example of the table which manages the customer information in an information database. It is a figure which shows the example of the table which manages the measurement information in an information database. It is a figure which shows the example of the table which manages the switching state in an information database. It is a figure which shows the example of the table which manages the switching log | history in an information database. It is a figure which shows the example of the table which manages the accounting information in an information database. It is a figure which shows the example of the table which manages the installation information in an energy management apparatus. It is a figure which shows the example of the table which manages the switching parameter in an energy management apparatus. It is a figure which shows the example of the table which manages the contract information in an energy management apparatus. It is a figure which shows the example of the business model by this invention. It is a figure which shows the example of the contract relationship in FIG. It is the schematic which shows the example of the system which expanded the structure of this invention. It is a schematic block diagram which shows the whole operation | movement flow of the switching system of an extended system. It is a figure which shows the example of a business model at the time of adding a distributed power supply company to FIG. It is a figure which shows the example of the contract relationship in FIG. It is a figure which shows the operation | movement flow of switch switching control.

<A. Embodiment 1>
<A-1. Configuration>
FIG. 1 is a diagram conceptually showing the configuration of a power management system according to the present invention.

  The customer-side equipment includes an energy management apparatus 103 that can communicate with the communication network 108, an end device 102 as a consumption device, a power generation means 101, a switch 105, a measurement means A106, and a measurement means B107. Each of the switch 105, the measuring unit A106, and the measuring unit B107 is a configuration for switching a power distribution network to be described later, but is not limited to the configuration as long as the power distribution network can be switched.

  The energy management apparatus 103, the end device 102, and the power generation means 101 are connected to the switch 105 via the distribution board 104, and connected to either the measurement means A106 or the measurement means B107 according to the switching of the switch 105. Is done. The end device 102 consumes at least one of the generated power supplied from the power generation means 101 or the external power supplied from the backbone / power transmission system.

  The measuring means A106 is further connected to the power distribution network A109, and the measuring means B107 is connected to the power distribution network B110. Consumers can receive power or be supplied with power through their respective distribution networks. Note that it is sufficient that a plurality of wiring networks are provided, and the number of wiring networks is not limited to two.

  A distribution network A 109 as a first distribution network is a distribution network for supplying external power to, for example, the end device 102 on the customer side, and is connected to a backbone / power transmission system higher than the transformer 112. The distribution network B110 as the second distribution network is not linked to the distribution network A109 and is connected to the power storage means 113 on the servicer side. The power storage unit 113 stores the surplus power that is not consumed in the customer-side equipment including the end device 102 out of the generated power in the power generation unit 101.

  Measuring means A106 and measuring means B107 are each installed at the power receiving end of the consumer and measure the amount of power.

  The power generation means 101 is a distributed power source owned by a consumer, and corresponds to, for example, solar power generation or wind power generation.

  The end device 102 is a terminal that consumes electric power such as information home appliances and residential equipment owned by consumers.

  The energy management apparatus 103 is energy management means on the customer side.

  The communication network 108 is connected to the power storage means 113, the information database 114, and the control device 115 on the servicer side via the access communication network 111.

  Here, the solid line in FIG. 1 conceptually shows the circuit and power flow, and the dotted line conceptually shows the communication flow.

  FIG. 2 is a schematic diagram showing an overall configuration of a power management system to which a distributed power source that is a prerequisite technology of the present invention is applied.

  The control device 215 is a device that monitors the amount of power measured by the measuring unit 206. A difference from FIG. 1 is that the switch 105 is not particularly provided. For this reason, for example, when a large amount of power generation means is introduced into the power management system, the generation of surplus power adversely affects the power quality and supply reliability of only one distribution network 209. Separate measures are required.

  For example, as shown in FIG. 3, the state transition state in the customer's distribution network connection includes a distribution network A connection state 301 in which the customer's distribution network connection value places importance on power quality, and a distribution in which importance is placed on power cost. The network B connection state 302 and the independent operation state 303 that is not connected to any of them can transit to each other.

  The power management system 304 performs control as control means based on information (parameters) on the customer side, such as the amount of power generated and consumed by the customer and the amount of stored electricity on the servicer side, collected via the communication network 305. The distribution network connected to the consumer can be switched using the device 115 and further the energy management device 103. Note that the switching includes switching to a connection state in which no connection is made to any power distribution network.

  For example, in the distribution network A connection state 301, when the amount of power generated by the consumer increases or the amount of power consumption decreases, the state transits to the independent operation state 303 or the distribution network B connection state 302. The transition to the connection state of the independent operation state 303 or the distribution network B connection state 302 is caused by an increase in the amount of generated power or a decrease in the amount of power consumption.

  In the distribution network B connection state 302, when the power generation amount of the consumer decreases, the power consumption amount increases, or the stored power amount decreases, the state transits to the distribution network A connection state 301 or the independent operation state 303. It shall be. The transition to the connection state of the independent operation state 303 or the distribution network A connection state 301 is caused by a decrease in the amount of generated power, an increase in the amount of power consumption, or a decrease in the amount of stored power.

  In the independent operation state 303, when the power consumption amount of the consumer increases or the generated power amount decreases, the state transits to the distribution network A connection state 301. In addition, when the power consumption amount of the consumer decreases or the power generation amount increases, the state transits to the distribution network B connection state 302.

<A-2. Operation>
FIG. 4 is a diagram illustrating the overall operation of the switching method.

  The information database 114 accesses the energy management apparatus 103 by monitoring means such as polling and traps, and provides switching control, switching incentives, content information, and the like, and generates generated power, consumed power, stored power, and billing information. Receive switching management information and the like.

  The information database 114 also receives power information such as the amount of generated power and the amount of stored power in the distribution network B connection state 302.

  The control device 115 receives processing information such as the amount of generated power and the amount of power consumption in the information database 114 and uses the switching algorithm 401 to execute switching control. Information related to switching control (switching control, switching incentive, content information, etc.) is given to the information database 114.

  The energy management apparatus 103 operates the switch 105 based on information related to switching control.

  In addition, the above switching incentives give consumers incentives for switching by showing fluctuations in the amount of generated power and power consumption and the amount of power stored in the distribution network to the customers, and switching the demands from customers to switching control. It is possible to contribute.

As shown in the example of Fig.5,
Power purchase amount = power consumption amount-generated power amount + surplus power amount The relational expression is established, and the surplus power amount can be regarded as the power sale amount. That is, the surplus power stored in the power storage means 113 is sold to the servicer side and becomes a consumer's income. For example, when the power consumption is 30 kWh, the generated power is 12 kWh, and the breakdown of the generated power is 3 kWh, the surplus power is
Purchased power = 30-12 + 3
= 21 (kWh)
It becomes.

  In the case of FIG. 4 as an example, when receiving power supply in the distribution network A connection state 301, before surplus power is generated, switch to the distribution network B connection state 302 and switch to 2 kWh to the independent operation state 303. 1 kWh is sold.

  Moreover, it is necessary to buy back the portion sold as surplus power. The power purchase destination is selected according to the situation of the customer. FIG. 4 shows that 10 kWh is purchased in the distribution network A connection state 301, 10 kWh in the distribution network B connection state 302, and 1 kWh in the independent operation state 303. It shows that.

  Hereinafter, as an embodiment of the basic pattern of the switching algorithm 401, a case where the switching control is performed by comparing the power generation ratio of the consumer and the threshold value, and a case where the switching control is performed by comparing the storage ratio of the servicer and the threshold value. Two examples are shown. Note that these switching control methods may be used independently or may be used in combination.

  FIG. 6 shows a flowchart when switching control is performed by comparing the power generation ratio of the consumer with a threshold value.

  First, the power generation ratio is calculated in the switching algorithm 401 of the control device 115 (step S101). The power generation ratio is indicated by the amount of generated power divided by the amount of power consumed, and is an instantaneous value that changes from moment to moment.

  Prior to the switching control, a threshold value of a switching condition for performing switching determination is set between the servicer and the consumer. For example, it is set to switch to the power distribution network B110 with the upper limit threshold set to 80% and switch to the power distribution network A109 with the lower limit threshold set to 20%.

  Next, it is confirmed whether the power generation ratio is greater than or equal to the upper threshold or less than the lower threshold (step S102). If it is equal to or greater than the upper limit threshold value, the process proceeds to step S103, and if it is less than the lower limit threshold value, the process proceeds to step S107. In other cases, that is, when the power generation ratio is less than the upper threshold and greater than or equal to the lower threshold, the operation is terminated.

  When the power generation ratio is equal to or greater than the upper limit threshold value, for example, before switching to the distribution network B110, it is determined whether the distribution network is different before and after switching (step S103). If the distribution networks are different before and after switching, that is, if the state before the switching is a distribution network state other than the distribution network B110, the process proceeds to step S104. If the distribution network is not different before and after switching, the operation is terminated.

  If the distribution network is different before and after switching, the power generation ratio is remeasured and / or recalculated (step S104). Recalculation is performed in order to reduce false detections in consideration of fluctuations near the threshold value of the instantaneous value. The polling count N and the remeasurement period T can be changed by parameter setting.

  Next, it is determined whether or not the re-measured and / or re-calculated power generation ratio is equal to or greater than the upper limit threshold (step S105). If it is greater than or equal to the upper threshold, the process proceeds to step S106. If it is less than the upper threshold, the operation is terminated.

  Next, a distribution network switching flow is executed (step S106). Here, a switching flow to the distribution network B110 is executed (the detailed flow is shown in FIG. 7).

  On the other hand, when the power generation ratio is less than the lower limit threshold value, for example, before switching to the distribution network A109, it is determined whether the distribution network is different before and after switching (step S107). If the distribution networks are different before and after switching, that is, if the state before the switching is a distribution network state other than the distribution network A 109, the process proceeds to step S108. If the distribution network is not different before and after switching, the operation is terminated.

  If the distribution network is different before and after switching, the power generation ratio is remeasured and / or recalculated (step S108). Recalculation is performed in order to reduce false detections in consideration of fluctuations near the threshold value of the instantaneous value.

  Next, it is determined whether the remeasured and / or recalculated power generation ratio is less than the lower limit threshold (step S109). If it is less than the lower threshold, the process proceeds to step S110. If it is equal to or higher than the lower threshold, the operation is terminated.

  Next, a distribution network switching flow is executed (step S110). Here, a switching flow to the distribution network A 109 is executed (the detailed flow is shown in FIG. 7).

  FIG. 7 shows a flowchart of the above switching control. Here, both the case of switching to the power distribution network A109 and the case of switching to the power distribution network B110 will be described using a common flow.

  First, a switch flag for the type of distribution network to be switched is set (step S201), and a switch control confirmation message is transmitted to the energy management apparatus 103 via the information database 114 (step S202).

  If the customer response setting is set to manual (step S203), after the switching determination is made on the consumer side, the system waits until a switching permission response message is received from the customer side (step S204). On the other hand, if the customer response setting is not manual (step S203), the process proceeds to step S206.

  If there is a switching permission response message within a certain time (step S205), the process proceeds to step S206. If there is no switching permission response message within a certain time (step S205), the process proceeds to step S207.

  In step S206, the consumer switch 105 is switched to change the distribution network state in the information database 114 to the distribution network type after switching. Then, the process proceeds to step S207.

  In step S207, the switch flag is cleared and the operation is terminated.

  FIG. 8 shows a flowchart when the switching control is performed by comparing the storage ratio of the storage unit 113 of the servicer with a threshold value.

  First, the storage ratio is calculated in the switching algorithm 401 of the control device 115 (step S301). The power storage ratio is stored power amount / power storage capacity.

  Note that a threshold value for the switching condition is set prior to the switching control. For example, it is set so that the upper limit threshold is set to 70% and switched to the distribution network B110, and the lower limit threshold is set to 20% to switch to other than the distribution network B110.

  Next, it is confirmed whether the power storage ratio is greater than or equal to the upper threshold or less than the lower threshold (step S302). If it is equal to or greater than the upper limit threshold value, the process proceeds to step S303, and if it is less than the lower limit threshold value, the process proceeds to step S307. In other cases, that is, when the power generation ratio is less than the upper threshold and greater than or equal to the lower threshold, the operation is terminated.

  In step S303 and step S307, the switching priority determination process flowchart shown in FIG. 9 is executed.

  After the switching priority is determined, in step S304, a switching incentive message is transmitted from the servicer side, and switching control is executed for the customer who has accepted the switching incentive message. At this time, instead of simply sending the switching incentive message to an unspecified number of consumers, according to the switching priority of the distribution network B, by multicast transmission in order from the customer group that easily accepts the switching incentive message, It is possible to make the customer response more efficient and speed up the start of switching.

  After the switching priority is determined, in step S308, a switching incentive message is transmitted from the servicer side, and switching control is executed for the customer who has accepted the switching incentive message. At this time, instead of simply transmitting a switching incentive message to an unspecified number of consumers, multicast transmission is performed in order from a consumer group having a high switching priority other than the distribution network B and easily accepting the switching incentive message. Thus, it is possible to make the customer response more efficient and speed up the start of switching.

  Next, in step S305 and step S309, if there is an acceptance response from the customer within a certain time, the process proceeds to step S306 and step S310. If there is no acceptance response within a certain time, the operation is terminated.

  Next, in step S306, the switching control flow is executed in the order of acceptance (see FIG. 7).

  In step S310, it is determined whether the distribution network A priority is higher than the independent operation priority. If the distribution network A priority is high, the process proceeds to step S311. If the independent operation priority is high, step S312 is performed. Proceed to

  Next, in step S311 and step S312, the switching control flow is executed in the order of acceptance (see FIG. 7).

  FIG. 9 shows a flowchart for determining the switching priority of the consumer registered in the information database 114.

  First, the customer number X = 1, the priority value is initialized, and the priority of the number of customers Y registered in the information database 114 is calculated (step S401).

  Next, it is determined whether the number of customers Y is greater than the customer number X (step S402). If the number of customers Y is large, the process proceeds to step S403. If the customer number X is greater than or equal to the number of customers Y, the operation is terminated.

  Next, the distribution network is checked (step S403). If the distribution network state is A (distribution network A109), the distribution network B priority is incremented by 1, and the independent operation priority is incremented by 1 (step S404). When the distribution network state is B (distribution network B110), the distribution network A priority is incremented by 1, and the independent operation priority is incremented by 1 (step S405). When the distribution network state is other than those, the distribution network A priority is incremented by 1, and the distribution network B priority is incremented by 1 (step S406).

  Next, the power generation ratio is checked (step S407). If the power generation ratio is equal to or greater than the upper limit threshold value, 1 is added to the distribution network B priority, and 1 is added to the independent operation priority (step S408). If the power generation ratio is less than the lower limit threshold, 1 is added to the priority of the power distribution network A (step S409). When the power generation ratio is a value other than those, the process proceeds to step S410 as it is.

  Next, the switching request state is checked (step S410). If the switching request is the distribution network B, 1 is added to the priority of the distribution network B (step S411). When the switching request is the distribution network A, the distribution network A priority is incremented by 1 (step S412). When the switching request is an independent operation, 1 is added to the independent operation priority (step S413). If the switching request is other than those, the process proceeds to step S414 as it is.

  Next, in step S414, 1 is added to the customer number X, and the process returns to step S402. In this way, the switching priority parameter for the consumer registered in the information database 114 is updated.

  In the above flow, for example, in the state of the distribution network A109, the power generation ratio is between the upper limit threshold and the lower limit threshold, and the user who has issued a switch request to the distribution network B110 has the distribution network B switching priority = 2.

  10 to 14 show an embodiment of the data table in the information database 114, and FIGS. 15 to 17 show an embodiment of the data table in the energy management apparatus 103.

  As data in the information database 114, a table D101 for managing customer information in FIG. 10 holds data such as various IDs (equipment configuration), power generation capacity and storage capacity (equipment capacity), and contract plans for each customer. Each of the service provider ID, the control device ID, and the energy management device ID indicates which provider the customer is receiving the service under, and the encrypted user ID is an ID used to conceal the service provider. It is.

  A table D201 for managing measurement information for each customer in FIG. 11 holds data such as an instantaneous value of electric power, an integrated value of electric energy, an amount of electric power purchased for each distribution network connection, and an electric power sales amount.

  The table D301 for managing the switching state in FIG. 12 holds data such as a distribution network connection state, a switching request state, and a switching priority that is referred to when the switching incentive of the control device 115 is transmitted for each customer.

  The table D401 for managing the switching history in FIG. 13 holds data such as past switching, a history of power purchase amount and power sale amount at the time of switching, and the like. By comparing this history information with the amount of power measured by the energy management apparatus 103, the measuring means A106, and the measuring means B107, it is possible to trace the charging information by both the customer and the service provider.

  The table D501 for managing charging information in FIG. 14 holds data such as the unit price of electricity charges for each distribution network type.

  On the other hand, as data in the energy management apparatus 103, a table D601 for managing facility information in FIG. 15 holds data such as instantaneous values of electric power of all the facilities to be monitored by the energy management apparatus 103, integrated values of electric energy, and the like.

  The table D701 for setting switching parameters in FIG. 16 holds data such as response settings, contract plans, and power generation ratio threshold values at the time of switching, which are parameters required by the energy management apparatus 103 during switching control of the control apparatus 115.

  The table D801 for registering the contract plan information in FIG. 17 holds data such as parameters to be referred between the servicer and the customer as to what is used to provide the switching incentive.

  FIG. 18 shows an example of a business model using the power management system according to the present invention. Assume that the business players are a service provider 501, an information management provider 502, a customer 503, and a power provider 504. For example, the service provider 501 performs switching control using the control device 115, and at this time, the information database 114 managed by the information management provider 502 is used.

  The customer 503 provides user information to the information management business operator 502 and uses information held by the information management business operator 502. Receive high-quality power supply from the power company 504 and buy it. User information includes customer information (user ID, encrypted user ID, service provider ID, control device ID, energy management device ID, power generation capacity, power storage capacity), measurement information (integrated power amount, instantaneous power), switching management Information (switching state, switching history), billing information (power purchase data, power sales data, amount of tradeable power), and the like are included.

  The customer 503 is provided with a low-cost power supply service and a distribution network switching control service from the service provider 501, and uses the service. Specifically, it receives services such as switching control, content information, power sales (low quality), power purchase (low quality), demand forecast data, and mediation of power storage means transactions. Furthermore, it is possible to buy and sell power between the consumers 503.

  As described above, it is possible to obtain merits by selling surplus power that should originally be discarded and purchasing power at a price according to the required power quality.

  The service provider 501 obtains processing information that is a part of user information permitted to be disclosed by the consumer 503 from the information management provider 502, and provides a switching service using this information. Fee revenue can be obtained by providing a switching service. Further, by purchasing or borrowing power distribution equipment from the electric power company 504, capital investment costs can be reduced.

  The information management company 502 can obtain fee revenue from providing the information management service from the service company 501 and the customer 503.

  The power company 504 does not require any capital investment due to the introduction of this system, and can ensure the power quality of its power distribution network by having the service company 501 take measures against reverse power flow. In addition, although the revenue of the electricity bill is reduced, it is possible to realize revenue and peak cuts by selling and lending equipment to the service provider 501.

  FIG. 19 shows an example of the contract relationship in FIG.

  The customer 503 concludes a power usage contract with the power provider 504, concludes a user information provision contract with the information management provider 502 that operates the information database 114, and is a service provider that operates the control device 115. A service use contract and a distributed power supply use and use contract are made for 501.

  The information management company 502 concludes a processing information provision and usage contract excluding privacy information with the service company 501, and the service company 501 signs a service provision contract with the customer 503. Information indicating these contract contents can be stored in the information database 114.

  By following the contents of the contract, it is possible to collect a service fee when controlling the connection state of the power distribution network so that the players can benefit from each other.

  In the above relationship, a detailed operation flow of the switch switching control is shown in FIG.

  First, the energy management apparatus 103 in the customer 503 includes an energy management apparatus random number generation unit 801 that generates a random number, a random number, a user ID that the information management company 502 identifies a user, user information, and an information management business. The energy management device storage means 802 for storing the provider encryption key, the service provider verification key, and the encrypted user ID, the random number, and the user ID are encrypted using the information management provider encryption key and encrypted. Energy management device encryption means 803 for generating a user ID, energy management device user information transmission means 804 for sending the encrypted user ID and user information to the information management business operator 502, and an energy management device for acquiring the current time Switching control information for the energy management device that receives the switching control information from the time management means 806 and the information management provider 502 A receiving unit 807, an energy management device encrypted user ID comparison unit 805 that compares the encrypted user ID included in the switching control information with the encrypted user ID generated by the energy management device encryption unit 803; The time comparison means 808 for energy management device that compares the processing time included in the control information with the current time, the encrypted user ID, the processing time, and the signed switching control instruction included in the switching control information An energy management device verification unit 809 that verifies using the operator verification key and an energy management device switch switching control unit 810 that switches the switch 105 are provided.

  In addition, the information management provider 502 provides information using the information database 114, but the configuration shown in FIG. 24 is used to process the information transmitted from the energy management apparatus 103 and provide it to the service provider 501. Manage information management devices.

  Specifically, user information receiving means 811 for information management business that receives an encrypted user ID and user information from the energy management apparatus 103, and processing information obtained by removing privacy information from the encrypted user ID and user information. Processing information generation means 812 for information management business to be generated, processing information transmission means 813 for information management business that sends the encrypted user ID and processing information to the service business 501, and an information management business decryption key are stored Information management provider storage means 814, switching management information receiving means 815 for receiving switching control information from the service provider 501, and the received switching control information using the information management provider decryption key. Information management provider decryption means 816 for decrypting the random number and the user ID from the encrypted user ID included, and the decrypted user ID It determines et destination user, and an information management company for switching control information sending means 817 for sending to the energy management unit 103 the switching control information.

  In addition, the control device of the service provider 501 specifically includes a service provider processing information receiving unit 818 that receives an encrypted user ID and processing information from the information management provider 502, and a service that acquires the current time. Service provider time acquisition means 819, service provider switching control determination means 820 for determining switching control based on the processing information and generating a switching control instruction, and service provider signature key for service provider storage A service provider signing unit that signs a storage unit 822, a processing time, an encrypted user ID, and a switching control command using a service provider signature key and generates a signed switching control instruction. 821, the encrypted user ID, the processing time, and the switching control instruction with signature are managed as switching control information. 'S 502 send to, and a service provider for switching control information sending means 823.

  Subsequently, an operation flow of the switch switching control will be described.

  In advance, the energy management apparatus 103 stores the user ID, the information management provider encryption key, and the service provider verification key in the energy management apparatus storage unit 802.

  Further, the information management business operator 502 stores the information management business operator decryption key in the information management business operator storage means 814.

  Further, the service provider 501 stores the service provider signature key in the service provider storage unit 822.

  Furthermore, the energy management apparatus 103 stores user information as power information in the energy management apparatus storage unit 802.

  First, when providing user information from the energy management apparatus 103 to the information management business operator 502, a random number is generated by the energy management apparatus random number generation means 801 and stored in the energy management apparatus storage means 802.

  Then, the energy management device encryption unit 803 generates an encrypted user ID by encrypting the random number and the user ID stored in the energy management device storage unit 802 using the information management company encryption key, The data is stored in the energy management device storage unit 802. Further, the energy management apparatus user information transmission means 804 sends the encrypted user ID and user information to the information management business operator 502.

  Next, the information management business operator 502 receives the encrypted user ID and user information from the energy management apparatus 103 at the information management business user information receiving means 811, and the information management business operator processing information generation means 812 receives the encrypted user ID and user information. Then, the processing information excluding the privacy information is generated from the encrypted user ID and the user information, and the encrypted user ID and the processing information are sent to the service provider 501 by the information management provider processing information transmission means 813.

  Next, the service provider 501 receives the encrypted user ID and the processing information from the information management provider 502 in the service provider processing information receiving unit 818, and the service provider switching control determination unit 820 processes the processing information. A switching control instruction is generated by determining switching control based on the information. Also, the service provider time acquisition means 819 acquires the current time as the processing time. Signature-added switching that is signed by the service provider signing means 821 using the service provider signature key stored in the service provider storage means 822 for the processing time, the encrypted user ID, and the switching control command. A control instruction is generated, and the service provider switching control information sending means 823 sends the encrypted user ID, processing time, and signed switching control instruction to the information management company 502 as switching control information.

  Next, the information management business operator 502 receives the switching control information from the service business operator 501 by the information management business operator switching control information receiving unit 815 and the information management business operator decryption unit 816 adds the switching control information to the received switching control information. The random number and the user ID are decrypted from the included encrypted user ID using the information management company decryption key stored in the information management company storage unit 814, and the information management company switching control information sending unit 817 is used. Thus, the destination user is determined from the decrypted user ID, and the switching control information is sent to the energy management apparatus 103.

  Next, the energy management apparatus 103 receives the switching control information from the information management company 502 by the energy management apparatus switching control information receiving means 807, acquires the current time by the energy management apparatus time acquisition means 806, and manages the energy management. The apparatus time comparing means 808 compares the processing time included in the switching control information with the current time, and determines that the time is valid if it is within a certain time. Then, the encrypted user ID comparison unit 805 for energy management apparatus compares the encrypted user ID included in the switching control information with the encrypted user ID generated by the encryption unit 803 for energy management apparatus. Judged as valid. Further, the energy management device verification means 809 verifies the encrypted user ID, the processing time, and the signed switching control instruction included in the switching control information using the service provider verification key, and the verification result is valid. In such a case, the switch 105 is switched by the switch switching control means 810 for the energy management device.

  In the present embodiment, by encrypting the user ID that identifies the user with the information management provider encryption key, the privacy information of the user is based on the contractual relationship between the information consumer, the information management provider, and the service provider. Only the information management company can know, and privacy information can be protected.

  Diversification of power purchase and sale methods can further improve power utilization efficiency and save energy, and reduce the cost of surplus power measures and improve facility utilization efficiency for power companies. For servicers, this system can be used to provide benefits such as mediation of power trading, provision of demand control services, improved service reliability through security measures, and protection of privacy information.

  In addition, the service provider signs the switching control instruction with the service provider signature key, and the energy management device verifies with the service provider verification key, so that the contract relationship between the information consumer, the information management provider, and the service provider Therefore, only the service provider can instruct switching control, and the reliability of the service by the security measures can be improved.

<A-3. Effect>
According to the embodiment of the present invention, in the power management system, the power generation unit 101 provided on the consumer side, generates power, and supplies the generated power, and the power generation system and the external power provided on the consumer side. End device 102 as a consuming device that consumes at least one of the above, power storage means 113 that is provided on the servicer side and stores surplus power that is not consumed in end device 102 among generated power, and demands for external power Based on the distribution network A109 as the first wiring network for supplying to the house, the distribution network B110 as the second wiring network for supplying surplus power from the consumer to the power storage means 113, and information on the customer side And a control device 115 as control means for controlling the connection state of the consumer to the distribution network A109 and the distribution network B110. It is, to dynamically control the flow of reverse power flow, and the first wiring network is properly distributed through the different second wiring network, it is possible to properly utilize the surplus electricity.

  In addition, since the amount of power distribution is dispersed, surplus power can be relatively reduced, power utilization efficiency can be improved, and surplus power countermeasure cost can be suppressed.

  Further, according to the embodiment of the present invention, in the power management system, the control device 115 as the control means is provided on the servicer side, so that the servicer side controls the connection state of the wiring network via the network or the like. can do.

  Moreover, according to the embodiment of the present invention, in the power management system, the control unit further includes the energy management device 103 provided on the consumer side, so that the control device 115 and the energy management device 103 can mutually interact. Communicate and control the connection status of the distribution network.

  Further, according to the embodiment of the present invention, in the power management system, the control information generated in the energy management apparatus 103 is encrypted and notified to the servicer side, and the control apparatus 115 as the control means signs on the servicer side. The information management device decrypts and notifies the energy management device 103 again, thereby controlling the connection state of the distribution network, thereby interposing between the control device 115 and the energy management device 103, for example, a servicer information Only management companies can access privacy information and protect privacy information.

  In addition, the service provider, which is a servicer that operates the control device 115, signs the switching control instruction with the certification key of the service provider, and verifies it with the verification key of the service provider in the energy management device 103, so that the service provider Only the switch control can be instructed, and the reliability of the service by the security measure is improved.

  Further, according to the embodiment of the present invention, in the power management system, the control device 115 as the control unit causes the generated power amount supplied from the power generation unit 101 and the power consumption in the end device 102 as the consumption device. By controlling the connection state based on the amount, the distribution network can be switched so that the surplus power that is the surplus of the generated power can be efficiently used.

  Further, according to the embodiment of the present invention, in the power management system, the control device 115 as the control unit controls the connection state based on the stored power amount of surplus power and the storage capacity of the power storage unit 113. Thus, the distribution network can be switched so that the stored power can be used efficiently.

  Further, according to the embodiment of the present invention, in the power management system, the end device 102 as a consumption device includes the amount of generated power supplied from the power generation means 101, the amount of power consumption in the end device 102, and the storage of surplus power. Based on at least one of the electric energy, it is possible to make a request to the control device 115 as a control means regarding the connection state, and the control device 115 controls the connection state according to the request, so that the demand of the consumer can be obtained. It is possible to dynamically control the flow of reverse power flow in normal times while taking into consideration, and to use surplus power appropriately.

  Further, according to the embodiment of the present invention, the power management system includes a plurality of end devices 102 as consumption devices, and a control device 115 as a control unit is set in advance among the plurality of end devices 102. By controlling the connection state in order from the end device 102 with the highest priority, it is possible to perform multicast transmission in order from the consumer group that easily accepts the switching incentive message, thereby making the customer response more efficient.

<B. Second Embodiment>
<B-1. Configuration>
FIG. 20 is a schematic diagram showing a power management system obtained by extending the first embodiment. Detailed description of the same configuration as in the first embodiment will be omitted.

  The power management system shown in the figure has a plurality of consumers, each of which is additionally provided with a power storage means 901 and an outlet 902 with an authentication function. Each consumer can connect to the distribution network A 109 and the distribution network B 110, and is connected to the access communication network 111.

  The access communication network 111 is also connected to the mobile terminal 905, and the control device 115 (which belongs to the service provider) connected in the first embodiment corresponds to the presence of a plurality of service providers, Multiple connected. Each control device 115 is provided with a switching algorithm 401, and the connection state of the distribution network can be controlled using any one of the control devices. Note that the control can be performed based on the amount of generated power and the amount of power consumed by the power generation unit 903, which will be described later, and the amount of stored power and the storage capacity of the storage unit 1001.

  Further, the access communication network 111 is connected to an information database 114 belonging to an information management company, and in the information database, the control unit 1000 can control customer information, measurement information, switching management information, and billing information. Yes.

  The power distribution network B110 is connected to a plurality of power storage means 1001 respectively belonging to a plurality of distributed power supply operators. Similarly, the power generation means 903 belonging to the respective distributed power supply operators are also connected, and the power storage means 1001 and the power generation means 903 are controlled by the control terminals 904 belonging to the respective distributed power supply operators.

  In this power management system, a plurality of consumers and a plurality of servicers intervene, so that, for example, the consumer can reduce the equipment cost by sharing the energy management apparatus 103, or can make a switching determination according to the power supply / demand situation other than itself. In addition, a plurality of control devices 115 and a service menu can be selected. In addition, the servicer can expand the service range by increasing operational efficiency due to the statistical multiplexing effect and increasing power interchange means.

  For example, the power storage unit 901 on the customer side can reduce the electricity bill by preferentially using its own surplus power in the distribution network B connection state 302, and in the independent operation state 303, it can be backed up at the time of disaster. It can be used as a power source.

  The outlet 902 with authentication function on the consumer side is a service outlet installed on the consumer side as a power selling means in the independent operation state 303, and subscribes to the service as a hot spot power supply service without being limited to the consumer. Users are available. The user can access the outlet 902 with an authentication function by using his authentication means and the information database 114.

  For example, when the surplus power supply from the customer is small in the distribution network B connection state 302, the power generation means 903 on the servicer side solves the shortage of power supply of the distribution network B110 by preferentially using the generated power. Is possible.

  The mobile terminal 905 is a terminal that can remotely confirm the content information provided in the control device 115 and can send a switching control request.

<B-2. Operation>
FIG. 21 is a diagram illustrating the overall operation of the switching method.

  A plurality of energy management apparatuses 103 are distinguished from each other, for example, as energy management apparatus A707 and energy management apparatus B708.

  Each of power generation means A 701, power storage means A 702, and end device A 703 is connected under the energy management apparatus A 707, and each of power generation means B 704, power storage means B 705, and end device B 706 is connected under the energy management apparatus B 708. Yes.

  The information database 114 collects data such as power generation amount, power consumption amount, stored power amount, billing information, switching management information from the energy management device A707 and energy management device B708 by monitoring means such as polling and traps. And accumulate.

  The control device A 711 and the control device B 712 can determine the execution of the switching control using the switching algorithm 401 based on the processing information such as the generated power amount and the consumed power amount in the information database 114. It is also possible to accept switching requests from consumers and execute switching control by providing fluctuation in power consumption of other consumers and the amount of stored power in the distribution network B110 to the consumers as a switching incentive. It is.

  The customer can connect to each of the control device A711 that distributes the content information A713 and the control device B712 that distributes the content information B714 by contract with a plurality of service providers. The mobile terminal 715 can receive a switching incentive message and content information from the energy management apparatus 103, and can transmit switching management information to the information database 114.

  In FIG. 21, the switch A709 is connected to the power distribution network A109 and the switch B710 is connected to the power distribution network B110. For example, the consumption of consumers under the energy management device B708 increases, and the switch to the power distribution network A is performed. When it is necessary, when a switching incentive message is transmitted to the mobile terminal 715 of the consumer who has a surplus in consumption under the energy management device A707 and it is determined that the switching control can be accepted by both consumers, The switch A709 can be switched to the distribution network B110, and the switch B710 can be switched to the distribution network A109.

  FIG. 22 shows a case where a distributed power supply company 605 is added as a business player to FIG. Detailed description of the same configuration as in FIG. 18 is omitted.

  The distributed power supply company 605 is provided with services such as power sales (low quality), power purchase (low quality), supply / demand prediction data, power storage data, and the like from the service company 501, and uses the services.

  Also, the distributed power supply company 605 obtains processing information that is a part of user information based on a contract between the distributed power supply company 605 and the service company 501 from the information management company 502, and uses this information. In addition, the distributed power supply company 605 sells or lends the power storage means to the customer 503.

  The distributed power supply operator 605 is a player who operates the power storage means 113 of the power distribution network B110, and a plurality of distributed power supply operators 605 are obtained by monitoring and control information from the service operator 501 obtained from the control terminal 904 (see FIG. 20). Can mutually expand the distribution means of the power distribution network B110 by mutually accommodating the generated power amount obtained from the power generation means 903 and the stored power amount obtained from the power storage means 1001.

  FIG. 23 shows an example of the contract relationship in FIG.

  The customer 503 concludes a power usage contract with the power provider 504, concludes a user information provision contract with the information management provider 502 that operates the information database 114, and is a service provider that operates the control device 115. A service use contract and a distributed power supply use and use contract are made for 501.

  The information management company 502 concludes a processing information provision and usage contract excluding privacy information with the service company 501, and the service company 501 signs a service provision contract with the customer 503.

  The distributed power supply company 605 concludes a service information provision contract and a distributed power supply provision contract with the service provider 501, and a processing information use contract excluding privacy information with respect to the information management company 502 that operates the information database 114. The service charge is collected by concluding the purchase and sale of the power storage means and the rental contract with the customer 503.

  A service provider 501 concludes an equipment rental and sales contract with an electric power provider 504.

  In the present embodiment, a plurality of consumers participate to form a community, which leads to individual level power interchange to community level power interchange.

  In addition, the participation of a plurality of service providers can promote the diversification of services and the activation of the power distribution market.

<B-3. Effect>
According to the embodiment of the present invention, in the power management system, at least one of the plurality of power generation means 903 is provided on the servicer side, so that when the surplus power supply from the consumer is small, the generated power By preferentially using, it is possible to solve the power supply shortage of the distribution network B110.

  Further, according to the embodiment of the present invention, in the power management system, at least one of the plurality of power storage units 901 is provided on the consumer side, so that its own surplus power is used preferentially. This makes it possible to reduce electricity charges and can be used as a backup power source in the event of a disaster.

  In addition, this invention is not limited to the said embodiment, In the implementation stage, it can change in the range which does not change a summary.

  101,903 Power generation means, 102 End device, 103 Energy management device, 104 Distribution board, 105 Switch, 106 Measurement means A, 107 Measurement means B, 108 Communication network, 109 Distribution network A, 110 Distribution network B, 111 Access system Communication network, 112 transformer, 113, 901, 1001 power storage means, 114 information database, 115, 215 control device, 206 measuring means, 209 distribution network, 301 distribution network A connection state, 302 distribution network B connection state, 303 independent operation state , 304 power management system, 305 information communication network, 401 switching algorithm, 501 service provider, 502 information management provider, 503 consumer, 504 power provider, 605 distributed power supply provider, 701 power generation means A, 702 Stage A, 703 End device A, 704 Power generation means B, 705 Power storage means B, 706 End device B, 707 Energy management device A, 708 Energy management device B, 709 Switch A, 710 Switch B, 711 Control device A, 712 Control Device B, 713 Content information A, 714 Content information B, 715 Mobile terminal, 801 Energy management device random number generation means, 802 Energy management device storage means, 803 Energy management device encryption means, 804 Energy management device user information transmission Means 805 energy management device encrypted user ID comparison means 806 energy management device time acquisition means 807 energy management device switching control information reception means 808 energy management device time comparison means 809 energy Verification means for energy management equipment, 810 switch control control means for energy management equipment, 811 user information reception means for information management business operators, 812 processing information generation means for information management business operators, 813 processing information transmission means for information management business operators, 814 Information management company storage means, 815 Information management company switching control information receiving means, 816 Information management company decoding means, 817 Information management company switching control information sending means, 818 Service company processing information reception Means, 819 service provider time acquisition means, 820 service provider switching control determination means, 821 service provider signature means, 822 service provider storage means, 823 service provider switching control information sending means, 902 authentication Functional outlet, 904 control terminal, 905 mobile terminal, 1 000 control unit, D101-D801 table.

Claims (24)

A power generation means provided on the consumer side for generating electric power and supplying the generated electric power;
A consumer device provided on the consumer side and consuming at least one of the generated power and external power;
A power storage means provided on a servicer side, for storing surplus power that is not consumed in the consumer device but surplus among the generated power; and
A first wiring network for supplying the external power to the consumer;
A second wiring network for supplying the surplus power from the consumer to the power storage means;
Control means for controlling a connection state of the consumer with respect to the first wiring network and the second wiring network based on the information on the customer side,
Power management system. The control means comprises a control device provided on the servicer side,
The power management system according to claim 1. The control means controls the connection state by remote operation via a communication network,
The power management system according to claim 1 or 2. The control means further comprises an energy management device provided on the consumer side,
The power management system according to claim 1. The connection state includes a connection state that places importance on power quality and a connection state that places importance on power cost,
The power management system according to claim 1. The control means controls the connection state based on the amount of power generated by the power generation means and the amount of power consumed in the consumption device.
The power management system according to claim 1. The control means controls the connection state in accordance with a ratio between the amount of generated power supplied from the power generation means and the amount of power consumed by the consuming device.
The power management system according to claim 6. The control means controls the connection state based on a stored power amount of the surplus power and a storage capacity of the power storage means,
The power management system according to claim 1. The control means controls the connection state according to a ratio between a stored power amount of the surplus power and a storage capacity of the power storage means,
The power management system according to claim 8. The consumption device can request the control means regarding the connection state based on at least one of the amount of generated power supplied from the power generation means, the amount of power consumption in the consumption device, and the amount of stored power of the surplus power. And
The control means controls the connection state in response to the request,
The power management system according to claim 1. The information on the customer side is determined based on at least one of the information indicating the equipment configuration and the capacity, the information indicating the integrated power amount, the information indicating the connection state, and the instantaneous power information in the consumption device. It is characterized by
The power management system according to claim 1. A plurality of the power generation means,
The control means controls the connection state based on the amount of generated power supplied from each of the power generating means and the amount of power consumed in the consuming device.
The power management system according to claim 1. At least one of the plurality of power generation means is provided on the servicer side,
The power management system according to claim 12. A plurality of the storage means,
The control means controls the connection state on the basis of a stored power amount and a storage capacity of the surplus power in each of the power storage means,
The power management system according to claim 1. At least one of the plurality of power storage means is provided on the consumer side,
The power management system according to claim 14. Comprising a plurality of the consumption devices;
The control means controls the connection state in order from the consumption device having a preset priority among the plurality of consumption devices,
The power management system according to claim 1. A plurality of the control means,
At least one of the plurality of control means controls the connection state,
The power management system according to claim 1. Provided on the servicer side, further comprising an information database for storing the contents of a contract concluded between the consumer and the servicer, and between the servicers;
The control means controls the connection state based on the content of the contract in the information database,
The power management system according to claim 1. The servicer includes a power provider that supplies power, an information management provider that manages the information database, and a service provider that manages the control means,
The contract includes a power usage contract with the power provider for the consumer to use power, and user information provision with the information management provider with which the consumer provides user information. A contract, a service usage contract with the service provider for the customer to use the service by paying a service fee, and for the service provider to receive processing information excluding privacy information And a processing information provision contract with the information management company,
The power management system according to claim 18. A service outlet provided on the consumer side for supplying power;
The service outlet can be used only by users who subscribe to the service.
The power management system according to claim 1. The control means controls the connection state by encrypting control information generated in the energy management device and notifying the servicer side, signing and decrypting on the servicer side, and notifying the energy management device again. It is characterized by
The power management system according to claim 4. The power management system according to claim 21, wherein
The servicer includes a power provider that supplies power, an information management provider that manages an information database, and a service provider that manages the control means,
Random number generating means for energy management device for generating a random number;
For the energy management apparatus that stores the random number, a user ID for identifying the user by the information management provider, user information, an information management provider encryption key, a service provider verification key, and an encrypted user ID Storage means;
An encryption unit for energy management device that encrypts the random number and the user ID using the information management provider encryption key, and generates the encrypted user ID;
Energy management device user information transmission means for transmitting the encrypted user ID and the user information to the information management business operator;
Time acquisition means for energy management device for acquiring the current time;
Switching control information receiving means for energy management device that receives switching control information from the information management company;
Comparing the encrypted user ID included in the switching control information with the encrypted user ID generated by the energy management apparatus encryption means; and an energy management apparatus encrypted user ID comparison means;
Time comparison means for energy management device for comparing the processing time included in the switching control information with the current time;
Energy management device verification means for verifying the encrypted user ID, the processing time, and the signed switching control instruction included in the switching control information using the service provider verification key;
It is characterized by comprising a switch switching control means for energy management device for switching the switch,
Energy management device. The power management system according to claim 21, wherein
The servicer includes a power provider that supplies power, an information management provider that manages an information database, and a service provider that manages the control means,
User information receiving means for information management business that receives the encrypted user ID and user information from the energy management device;
Processing information generating means for an information management company that generates processing information excluding privacy information from the encrypted user ID and the user information;
Processing information transmission means for information management business that sends the encrypted user ID and the processing information to a service business,
Storage means for information management business that stores the information management business operator decryption key;
Switching control information receiving means for information management company that receives switching control information from the service company;
Information management provider decryption means for decrypting a random number and a user ID from the encrypted user ID included in the received switching control information using the information management provider decryption key;
It is characterized by comprising a switching control information sending means for an information management company that determines a destination user from the decrypted user ID and sends the switching control information to the energy management device,
Information management device. The power management system according to claim 21, wherein
The servicer includes a power provider that supplies power, an information management provider that manages an information database, and a service provider that manages the control means,
In the control means, provided on the service provider side,
Processing information receiving means for a service provider that receives an encrypted user ID and processing information from the information management provider,
A service provider time acquisition means for acquiring the current time;
Switching control determination means for a service provider that determines switching control based on the processing information and generates a switching control instruction;
Service provider storage means for storing a service provider signature key;
A signature means for a service provider that signs the encrypted user ID and the switching control instruction using the service provider signature key, and generates a signed switching control instruction;
Service provider switching control information sending means for sending the encrypted user ID, processing time, and signed switching control instruction to the information management company as switching control information,
Control device.

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