JP2020202702A - Demand control method, control device, program, and power system - Google Patents

Abstract

To provide a demand control method or the like capable of preferably utilizing surplus electric power.SOLUTION: A demand control method causes a computer to execute a process of acquiring supply information regarding power supplied to a power system S to which a power generation facility 4 using renewable energy is connected, determining whether the supplied power exceeds a predetermined upper limit on the basis of the supply information, supplying surplus power corresponding to a difference between the supplied power and the upper limit value to an arithmetic unit 5 that performs the calculation related to mining of a virtual currency when it is determined that the supplied power exceeds the upper limit.SELECTED DRAWING: Figure 1

Description

The present invention relates to demand control methods, control devices, programs and power systems.

In recent years, power generation facilities using renewable energy such as solar power, wind power, and hydraulic power have become widespread. However, when a large number of renewable energy power generation facilities are connected to the power system, the power supplied to the power system may become excessive, and there is a problem that the output needs to be suppressed.

For example, in Patent Document 1, in order to reduce variations in output suppression among consumers having a photovoltaic power generation system, target values for output suppression are set for individual consumers, and output suppression is distributed according to the target values. The operation control method of the photovoltaic power generation system to be performed is disclosed.

Japanese Unexamined Patent Publication No. 2012-196116

However, the invention according to Patent Document 1 only makes the output suppression imposed on each consumer who generates private power fair, and cannot be said to preferably utilize surplus power.

In one aspect, it is an object of the present invention to provide a demand control method or the like capable of suitably utilizing surplus electric power.

In the demand control method according to one aspect, the supply information regarding the power supply to be supplied to the power system to which the power generation equipment using renewable energy is connected is acquired, and the power supply is determined based on the supply information. A computing device that determines whether or not the upper limit value is exceeded, and if it is determined that the upper limit value is exceeded, calculates the surplus power corresponding to the difference between the supplied power and the upper limit value in relation to the mining of the virtual currency. It is characterized in that the computer executes the process of supplying to.

On one side, surplus power can be suitably used.

It is a schematic diagram which shows the structural example of the electric power system. It is a schematic diagram which shows the configuration example of a server. It is explanatory drawing which shows an example of the record layout of the power generation facility DB, the supply and demand DB, the system capacity DB, the mining machine DB, the power storage device DB, and the electric power price DB. It is explanatory drawing which shows the outline of Embodiment 1. FIG. It is explanatory drawing which shows an example of the report screen which a terminal displays. It is a flowchart which shows an example of the procedure of power supply control processing. It is a flowchart which shows an example of the procedure about a report display process. It is explanatory drawing which shows the structural example of the power generation facility which concerns on the modification. It is explanatory drawing which shows the outline of Embodiment 2. It is a flowchart which shows an example of the processing procedure executed by the server which concerns on Embodiment 2. It is explanatory drawing which shows the outline of Embodiment 3. It is a flowchart which shows an example of the processing procedure executed by the server which concerns on Embodiment 3.

Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments thereof.
(Embodiment 1)
FIG. 1 is a schematic diagram showing a configuration example of an electric power system. In the present embodiment, a mining machine (arithmetic unit) that mines virtual currency with surplus power supplied from a power generation facility 4 that is connected to a commercial power supply system and generates power using renewable energy. ) The power system supplied to 5 will be described. The electric power system includes an information processing device 1, a terminal 2, a substation 3, a monitoring device 31, a power generation facility 4, a mining machine 5, a power storage device 6, and the like. The information processing device 1 is configured to be able to communicate with various devices constituting the system S via the network N.

The information processing device 1 is a device that performs various information processing and information transmission / reception, and is, for example, a server device, a personal computer, or the like. In the present embodiment, the information processing device 1 is assumed to be a server device, and will be read as a server 1 below for the sake of brevity. The server 1 is a server device of an electric power company that manages the system S, and transmits and distributes electric power in the system S including a wide area upper system (core system) S1 to a lower system S2 in each region (for example, each prefecture). It functions as a central control device to control.

The terminal 2 is a terminal device operated by the administrator (electric power company) of this system, and is a personal computer or the like that functions as a client terminal of the server 1.

The substation 3 is a substation facility having a transformer or the like, for example, a distribution substation. The substation 3 may be an ultra-high voltage substation, a primary substation, a secondary substation (intermediate substation), or the like. The substation 3 steps down the power transmitted from the power source 8 via the upper system S1 and the lower system S2, and supplies the power to the demand facility 7. As shown in FIG. 1, the substation 3 is configured to be able to receive the power transmitted from the power generation facility 4.

The power generation facility 4 is a power generation facility that generates power using renewable energy, and is, for example, a solar power generation facility. The power generation method by the power generation facility 4 may be any one using renewable energy, and may be, for example, a wind power plant, a hydroelectric power plant, a geothermal power plant, or the like. Further, the power generation facility 4 may be, for example, a small-scale facility for private power generation installed by a small-lot consumer, or a large-scale facility installed for sale by a predetermined power generation company. .. The power generation facility 4 is connected so that the electric power generated by its own device can be supplied to the system S, and sells the electric power to the electric power company.

The connection (interconnection) location of the power generation facility 4 is not particularly limited. For example, as shown in FIG. 1, it may be connected to the power transmission / distribution network of the lower system S2, or the upper system S1 and the lower system S2. It may be connected to the power grid between them.

The mining machine 5 is an arithmetic unit equipped with a high-speed arithmetic processor such as an ASIC (Application Specific Integrated Circuit) and performing arithmetic related to the mining of virtual currencies such as Bitcoin (registered trademark) and Ethereum (registered trademark). The virtual currency is a cryptocurrency in which the transaction history is recorded in a distributed ledger called a blockchain, and the transaction history is verified by each node (minor) distributed on the network N. Is a cryptocurrency that has been difficult to tamper with. The type of virtual currency that the mining machine 5 mines is not particularly limited. Further, although only one mining machine 5 is shown in FIG. 1 for convenience, a plurality of mining machines 5, 5, 5, ... Are actually connected.

For example, many mining machines 5 are housed in a container or the like and are arranged in a substation 3. Although the mining machine 5 is connected to the low voltage side of the substation 3 in FIG. 1, it may be connected to the high voltage side.

Further, a power storage device 6 is arranged in the substation 3 in a form of being installed side by side with the mining machine 5. Although only one power storage device 6 is shown in FIG. 1, a plurality of power storage devices 6, 6, 6 ... Are actually connected. Similar to the mining machine 5, a large number of power storage devices 6 are housed in a container or the like and are arranged in a substation 3.

Although the mining machine 5 and the power storage device 6 will be described as being arranged in the substation 3 in the present embodiment, the connection points of the mining machine 5 and the power storage device 6 in the system S are not limited to the substation 3. , Each transmission line constituting the system S, the substation 3, the power plant corresponding to the power source 8, the demand facility 7, and other facilities may be connected. Further, as in the modified example described later, the mining machine 5 and the power storage device 6 may be arranged in the renewable energy power generation facility 4.

In the present embodiment, when the server 1 determines that the electric power supplied from various power sources including the power generation facility 4 of the renewable energy exceeds the predetermined output suppression value representing the upper limit value that can be transmitted and distributed, the server 1 exceeds the power supply. The surplus electric power for that amount is supplied to the mining machine 5 and controlled to be consumed. That is, the server 1 creates the demand by the mining machine 5 so as to eliminate the state of oversupply. Specifically, as will be described later, the server 1 controls the power supply to the mining machine 5 and / or the power storage device 6 via a monitoring device 31 (for example, a personal computer) installed in the substation 3, and each of them. Have the device perform mining and / or electricity storage.

In the present embodiment, it is assumed that the power storage device 6 (storage battery) is supplied with surplus electric power to store the power, but the server 1 is a fuel cell and a compressed air energy storage (CAES) system. The surplus power may be supplied to the above. That is, the server 1 may be able to supply surplus electric power to a predetermined energy storage device, and the device is not limited to the power storage device 6.

Further, in the present embodiment, the sales destination of the electric power from the power generation facility 4 is assumed to be an electric power company (general power transmission and distribution business operator), but the power sales destination is not limited to the electric power company, for example, the retail electricity business. It may be a person, a consumer, or an individual who is connected by P2P (Peer to Peer). In addition to the electric power company, the administrator of this system may be, for example, an operator of a virtual power plant (VPP), a renewable energy power generation company, or the like. That is, the administrator does not have to be an electric power company, and the system administrator and the electricity sales destination may be different.

FIG. 2 is a schematic diagram showing a configuration example of the server 1. The server 1 has a control unit 11, a main storage unit 12, a communication unit 13, and an auxiliary storage unit 14.
The control unit 11 has one or more CPUs (Central Processing Units), MPUs (Micro-Processing Units), GPUs (Graphics Processing Units) and other arithmetic processing units, and stores the program P stored in the auxiliary storage unit 14. By reading and executing, various information processing, control processing, etc. are performed. The main storage unit 12 is a temporary storage area for SRAM (Static Random Access Memory), DRAM (Dynamic Random Access Memory), flash memory, etc., and temporarily stores data necessary for the control unit 11 to execute arithmetic processing. Remember. The communication unit 13 is a communication module for performing processing related to communication, and transmits / receives information to / from the outside.

The auxiliary storage unit 14 is a non-volatile storage area such as a hard disk or a large-capacity memory, and stores a program P and other data necessary for the control unit 11 to execute processing. Further, the auxiliary storage unit 14 stores the power generation equipment DB 141, the supply / demand DB 142, the system capacity DB 143, the mining machine DB 144, the power storage device DB 145, and the electric power price DB 146. The power generation facility DB 141 is a database that stores information on each power generation facility 4. The supply and demand DB 142 is a database that stores power demand information and supply information. The system capacity DB 143 is a database for storing information on the system capacity of the system S. The mining machine DB 144 is a database that stores information on each mining machine 5. The power storage device DB 145 is a database that stores information of each power storage device 6. The electric power price DB 146 is a database that stores data on electric power prices in the electric power trading market (for example, wholesale electric power prices on the Japan Wholesale Electric Power Exchange).

The auxiliary storage unit 14 may be an external storage device connected to the server 1. Further, the server 1 may be a multi-computer composed of a plurality of computers, or may be a virtual machine virtually constructed by software.

Further, in the present embodiment, the server 1 is not limited to the above configuration, and may include, for example, an input unit that accepts operation input, a display unit that displays an image, and the like. Further, the server 1 is provided with a reading unit that reads a portable storage medium 1a such as a CD (Compact Disk) -ROM, a DVD (Digital Versatile Disc) -ROM, and reads and executes the program P from the portable storage medium 1a. You can do it. Alternatively, the server 1 may read the program P from the semiconductor memory 1b.

FIG. 3 is an explanatory diagram showing an example of a record layout of the power generation equipment DB 141, the supply / demand DB 142, the system capacity DB 143, the mining machine DB 144, the power storage device DB 145, and the electric power price DB 146.
The power generation facility DB 141 includes a power generation facility ID column, a type column, a connection column, and a power generation amount column. The power generation facility ID column stores the power generation facility ID for identifying each power generation facility 4. The type column, the connection column, and the power generation amount column correspond to the power generation equipment ID, respectively, and store the type (power generation method) of the power generation equipment 4, the connection (interconnection) location in the system S, and the power generation amount of the power generation equipment 4. doing.

The supply and demand DB 142 includes a power system column, a date and time column, a demand value column, and a supply value column. The power system column stores the system name of each power system in which the system S is classified by region. The date and time column, the demand value column, and the supply value column store the date and time, the power demand value at the date and time, and the supply value in association with the systematic name, respectively.

The grid capacity DB 143 includes a power grid row, a transmission line / substation row, an operating capacity row, and an empty capacity row. The power system column stores the system name of each power system in which the system S is classified by region. The transmission line / substation column, operating capacity column, and empty capacity column are associated with the system name, respectively, and the operating capacity and vacancy of the transmission line or substation 3 constituting the power system, and the transmission line or substation 3. I remember the capacity.

The mining machine DB 144 includes a machine ID column, a connection column, a power consumption column, a calculation column, and a mining column. The machine ID column stores a machine ID for identifying each mining machine 5. The connection column, power consumption column, calculation column, and mining column are associated with the machine ID, respectively, and the connection (arrangement) location of the mining machine 5 in the system S, the power consumption of the mining machine 5, the calculation amount per unit time, and so on. And the execution history of mining is stored.

The power storage device DB 145 includes a power storage device ID row, a connection row, a rated capacity row, and a remaining capacity row. The power storage device ID column stores the power storage device ID for identifying each power storage device 6. The connection row, the rated capacity row, and the remaining capacity row are associated with the power storage device ID, respectively, at the connection point on the power system to which the power storage device 6 is connected, the rated capacity of the power storage device 6, and the remaining capacity that can be currently stored. The capacity is memorized.

The electric power price DB 146 includes a time zone column and a price column. The time zone column stores the time zone when the transaction was made in the electric power trading market. The price column stores the transaction price of wholesale electric power in association with the time zone.

FIG. 4 is an explanatory diagram showing an outline of the first embodiment. FIG. 4A illustrates a graph showing daily fluctuations in the demand value and the supply value of electric power. FIG. 4B illustrates a conceptual diagram regarding the system capacity. An outline of the present embodiment will be described with reference to FIG.

In FIG. 4A, as an example, the power generation facility 4 is shown to generate solar power. As a matter of course, photovoltaic power generation is carried out during the daytime, and the power supply during the daytime increases. When a large number of power generation facilities 4, 4, 4, ... Are connected to the system S, the power supplied from each power generation facility 4 may become excessive during the daytime, and an oversupply state may occur in the system S. In order to respond to this, electric power companies control the amount of power generated at thermal power plants and the like so that the supplied power is in equilibrium with the demanded power. However, if the balance cannot be achieved due to the supply limitation on the electric power company side, it is necessary to request each power generation facility 4 to suppress the output, which is a problem.

Further, as shown in FIG. 4B, the problem that the system capacity capable of transmitting and distributing power in the system S is insufficient and the new power generation facility 4 cannot be connected to the system S has become apparent. Each transmission line that constitutes system S, or power transmission and distribution equipment such as substation 3, has a rated capacity that can be transmitted. For example, in Japan, it is stipulated that power transmission be performed within half of the rated capacity. However, due to the interconnection of a large number of power generation facilities 4, 4, 4, ..., The grid capacity is insufficient, and there are some areas where new entrants cannot interconnect to the grid S.

Therefore, in the present embodiment, in order to deal with the above-mentioned problems of power supply and demand or system capacity, excess power is supplied to the mining machine 5. Specifically, as described below, surplus electric power is supplied to the mining machine 5 for consumption while also using the power storage device 6.

For example, the server 1 can be connected to each location of the grid S from power meters (not shown) installed at each location of the power supply 8, transmission line, substation 3, demand facility 7, etc. constituting the grid S via the network N. The supply information indicating the power supply value and the demand information indicating the demand value in the above are continuously acquired and stored in the supply / demand DB 142. Further, the server 1 continuously acquires the power supply information from the renewable energy power generation facility 4 via the network N and stores it in the power generation facility DB 141.

The server 1 refers to the supply information and the demand information stored in the supply and demand DB 142, and determines whether or not the supply power exceeds the demand power. For example, the server 1 predicts the diurnal variation of each parameter from the past supply value and demand value in the system S, and estimates the oversupply location where the supply power exceeds the demand power, the time zone where the demand power is exceeded, and the like. When predicting daily fluctuations of the power supply value and the demand value, the server 1 may predict each parameter with reference to weather information (temperature, weather, etc.). Further, the server 1 may determine whether or not the supplied power exceeds the required power, and may determine, for example, the excess supply in real time from the current parameters.

Further, the server 1 refers to the supply information stored in the supply and demand DB 142 and the system capacity stored in the system capacity DB 143 to determine whether or not the supplied power exceeds the system capacity of the system S. For example, the server 1 predicts the daily fluctuation of the supplied power from the past power supply value, and compares the system capacity at each location of each transmission line, substation 3, etc. constituting the system S with the predicted value of the supplied power. , Estimate the oversupply location, time zone, etc. where the supplied power exceeds the system capacity. In this case as well, the diurnal variation of the supplied power may be predicted with reference to the weather information and the like as described above.

As described above, the server 1 compares the demand power or the system capacity as the upper limit value with the supplied power, and determines whether or not the supplied power exceeds the upper limit value. When it is determined that the supplied power exceeds the upper limit value, the server 1 supplies power to the mining machine 5 so as to consume the difference between the supplied power and the upper limit value, that is, the excess power.

For example, the server 1 refers to the mining machine DB 144 and identifies the mining machines 5, 5, 5, ... Arranged in the substation 3 corresponding to the oversupply location. The server 1 refers to the power consumption value of each mining machine 5, and supplies the surplus power to each mining machine 5 so that the above surplus power is consumed by the plurality of mining machines 5, 5, 5, ... And determine the allocation.

Further, in the present embodiment, not only the mining machine 5 but also the power storage device 6 is used in combination, and the surplus electric power is distributed and supplied to the mining machine 5 and the power storage device 6. The method of allocating the surplus power is not particularly limited, but for example, the server 1 preferentially supplies the surplus power to the mining machines 5, 5, 5, ..., And supplies the surplus power to all the mining machines 5 arranged in the substation 3. If the surplus power cannot be consumed, the power is further distributed so as to be supplied to the power storage devices 6, 6, 6 ...

The above supply method (distribution method) is an example, and may be preferentially supplied to the power storage device 6, for example. Further, for example, the server 1 may calculate the expected value of the profit from mining by referring to the current rate information (market price) of the virtual currency, the difficulty level of mining (Difficulty), etc., and determine the supply allocation of surplus power. Good.

Further, for example, the server 1 may determine the supply allocation of surplus electricity based on the electricity price in addition to the rate information of the virtual currency and the difficulty level of mining. For example, the server 1 stores the wholesale power price of each time zone in the power trading market in the power price DB 146, and predicts the price at the time of discharging the power stored in the power storage device 6 with reference to the wholesale power price. , Determine the supply allocation of surplus electricity. As described above, the server 1 may determine the supply distribution of surplus power to the mining machine 5 and the power storage device 6 based on the market price information of the virtual currency and the market price information of the electric power price.

As described above, the server 1 determines the supply amount and distribution of the surplus power to be supplied to the mining machine 5 and / or the power storage device 6, and supplies the surplus power to each mining machine 5 and / or the power storage device 6 by the distribution. To control. Each of the mining machine 5 and the power storage device 6 receives the supply of surplus electric power, performs arithmetic processing related to mining of virtual currency, and stores electricity.

The server 1 sequentially acquires data on the mining execution history in each mining machine 5 and the storage history in each power storage device 6 via the monitoring device 31, and stores the data in the mining machine DB 144 and the power storage device DB 145. The server 1 continues to supply surplus electric power to each device while referring to the execution history of the mining machine 5 and the storage history of the power storage device 6 stored in the mining machine DB 144 and the power storage device DB 145, respectively.

FIG. 5 is an explanatory diagram showing an example of a report screen displayed by the terminal 2. FIG. 5 illustrates an example of a report screen showing the execution history of mining by the mining machine 5. For example, the server 1 outputs the mining execution history in response to the request from the terminal 2, and displays the screen of FIG. 5 on the terminal 2.

For example, the server 1 receives the designated input of the power system (upper system S1 or lower system S2) to be displayed as the mining result in response to the operation input to the area designation field 51. When the specified power system input is received, the server 1 generates a report screen showing the execution history (for example, the execution history of the previous day) of each mining machine 5 connected to the specified power system and outputs it to the terminal 2. To do.

For example, the report screen includes a supply and demand graph 52, a mining graph 53, and a list 54. The supply and demand graph 52 is a graph showing the daily fluctuations of the demand value and the supply value of electric power in the designated electric power system and the daily fluctuations of the wholesale electric power price. The mining graph 53 is a graph showing daily fluctuations of the total amount of mining operations and the total amount of mining of virtual currency in the mining machines 5, 5, 5 ... Arranged in the system. The list 54 is a table showing data of each mining machine 5 (for example, mining execution history, connection points where the mining machine 5 is connected to the system S, etc.) in a list.

The server 1 generates the supply and demand graph 52 of the designated power system by referring to the supply and demand DB 142 and the electric power price DB 146, and also generates the mining graph 53 and the list 54 by referring to the mining machine DB 144 and outputs them to the terminal 2. To do. The terminal 2 displays a report screen showing the supply and demand graph 52, the mining graph 53, and the list 54, and can compare the power supply and demand history and transaction price history in the designated power system with the mining execution history. Present to the administrator. As a result, the manager (electric power company) can easily grasp the execution history of mining in each region (electric power system), and can easily grasp the relationship between the power supply and demand and the wholesale power price.

FIG. 6 is a flowchart showing an example of the procedure of the power supply control process. The contents of the power supply control process executed by the server 1 will be described with reference to FIG.
The control unit 11 of the server 1 acquires supply information regarding the power supplied from various power sources, including the power supplied from the power generation facility 4 using renewable energy, which is the power supplied to the system S (step). S11). The control unit 11 refers to the system capacity DB 143 and determines whether or not the supplied power exceeds the system capacity of the system S (step S12).

When it is determined that the system capacity is not exceeded (S12: NO), the control unit 11 acquires demand information regarding the demand power consumed by each demand facility 7 (step S13). The control unit 11 refers to the supply information and the demand information, and determines whether or not the supplied power exceeds the demand power (step S14). When it is determined that the demand power is not exceeded (S14: NO), the control unit 11 ends a series of processes.

When it is determined that the supplied power exceeds the system capacity (S12: YES), or when it is determined that the supplied power exceeds the required power (S14: YES), the control unit 11 calculates the excess power (step). S15). The control unit 11 determines the amount and distribution of the surplus power supplied from the power generation facility 4 to the mining machine 5 and / or the power storage device 6 (energy storage device) so as to consume the surplus power (step S16). In this case, the control unit 11 may determine the allocation by referring to, for example, the market value information of the virtual currency and the market value information of the wholesale electricity price. The control unit 11 controls the supplied power via the monitoring device 31 so as to supply the surplus power to the mining machine 5 and / or the power storage device 6 with the determined distribution (step S17). The control unit 11 ends a series of processes.

FIG. 7 is a flowchart showing an example of a procedure related to the report display process. Based on FIG. 7, the processing content when displaying the report screen showing the execution history of mining on the terminal 2 will be described.
The control unit 11 of the server 1 receives a designated input of the power system (upper system S1 or lower system S2) for displaying the mining history from the terminal 2 (step S31). For the designated power system, the control unit 11 reads data such as mining execution history in each mining machine 5 connected to the system and power supply and demand history in the system from each database (step S32).

The control unit 11 generates a report screen showing the execution history of mining in the designated power system and the supply and demand history of power in the system (step S33). For example, as illustrated in FIG. 5, the control unit 11 displays a graph showing the supply and demand value of electric power, the wholesale electric power price, and the mining amount of virtual currency in chronological order, and lists the execution history of each mining machine 5. Generate a report screen to show. The control unit 11 outputs the generated report screen to the terminal 2 (step S34), and ends a series of processes.

From the above, according to the first embodiment, the surplus electric power can be suitably used by supplying the surplus electric power to the mining machine 5.

Further, according to the first embodiment, by arranging the mining machine 5 in the substation 3 that receives the power supplied from the power generation facility 4, the surplus power can be more preferably consumed.

Further, according to the first embodiment, the surplus electric power can be more preferably consumed by using the power storage device 6 (energy storage device) together.

Further, according to the first embodiment, the generation of surplus power can be suitably detected from the demand power of the system S.

Further, according to the first embodiment, the generation of surplus power can be suitably detected from the system capacity of the system S.

Further, according to the first embodiment, the execution history of mining in each power system (upper system S1 and lower system S2) can be easily confirmed.

(Modification example)
In the first embodiment, a mode in which the mining machine 5 is arranged in the substation 3, that is, the equipment on the manager (electric power company) side has been described. However, the mining machine 5 may be arranged in each power generation facility 4, and mining may be performed for each power generation facility 4. Here, as a modification, a mode in which the mining machine 5 (and the power storage device 6) is arranged in each power generation facility 4 will be described.

FIG. 8 is an explanatory diagram showing a configuration example of the power generation facility 4 according to the modified example. The power generation facility 4 according to the modified example includes a controller 41, a power generation module 42, a PCS (Power Conditioner) 43, a mining machine 5, a power storage device 6, and the like. The controller 41 is a control device that manages power generation, power transmission, etc. in the power generation facility 4, and is connected to the network N. The power generation module 42 is a module including a solar panel and the like, and generates power using sunlight. The PCS 43 is a converter that performs DC / AC conversion of the electric power generated by the power generation module 42, and is connected to the transmission line of the system S via a switchboard or the like (not shown).

For example, the mining machine 5 and the power storage device 6 are connected to the PCS 43, and are configured to be able to supply generated power from the power generation module 42. For example, the controller 41 controls the PCS 43 according to a command from the server 1 and supplies the electric power generated by the power generation module 42 to the transmission line or supplies the mining machine 5 and / or the power storage device 6.

Similar to the first embodiment, the server 1 determines whether or not the supplied power exceeds the upper limit value in the system S. When it is determined that the upper limit value is exceeded, the server 1 controls the PCS 43 via the controller 41 of each power generation facility 4 to supply power to the mining machine 5 and / or the power storage device 6. As a result, the electric power output to the system S is suppressed, and the situation of oversupply is prevented.

Since it is almost the same as the first embodiment except that the arrangement of the mining machine 5 and the power storage device 6 is different, the flowchart and other detailed explanations will be omitted in the modified example.

(Embodiment 2)
In the present embodiment, a mode is described in which the optimum arrangement (arrangement information) of the mining machine 5 is proposed to the administrator so that the mining machine 5 is arranged at the oversupply location where the power supply becomes excessive in the system S. The contents overlapping with the first embodiment are designated by the same reference numerals and the description thereof will be omitted.
FIG. 9 is an explanatory diagram showing an outline of the second embodiment. FIG. 9 conceptually illustrates how the power transmission and distribution network of the system S is branched. An outline of the present embodiment will be described with reference to FIG.

The system S has a hierarchical and complicated power transmission and distribution network from the upper system S1 to the lower system S2. In the present embodiment, the server 1 estimates an oversupply location where the power supply exceeds the upper limit value and is expected to be in an oversupply state in the system S, and arranges the mining machine 5 (and the power storage device 6) at the location. Propose to the manager (electric power company, etc.) to do so.

For example, the server 1 refers to the past supply information and demand information stored in the supply and demand DB 142, the system capacity of each part of the system S stored in the system capacity DB 143, and the supply power exceeds the upper limit value. Estimate oversupply points. For example, the server 1 calculates the predicted values of the supplied power and the demanded power as in the first embodiment, and determines whether or not the supplied power exceeds the demanded power at each location. Further, the server 1 compares the predicted value of the supplied power with the system capacity, and determines whether or not the supplied power exceeds the system capacity. As a result, the server 1 estimates the oversupply location in the system S, as shown by the thick line in FIG.

When the oversupply location is estimated, the server 1 calculates the surplus power generated at the location and determines the number of mining machines 5 to be arranged at the location so that the calculated surplus power can be consumed. .. As in the first embodiment, it may be decided to connect the power storage device 6 in addition to the mining machine 5. The server 1 notifies the terminal 2 of the determined arrangement information indicating the arrangement location and the number of the mining machines 5, and displays the arrangement information. For example, the server 1 displays a wiring diagram of the system S indicating the location and the number of mining machines 5 to be connected to, and presents the optimum arrangement of the mining machines 5 to the administrator.

FIG. 10 is a flowchart showing an example of a processing procedure executed by the server 1 according to the second embodiment.
The control unit 11 of the server 1 uses supply information indicating the past power supply value in the system S, demand information indicating the past demand value, and each transmission line constituting the system S from each database such as the supply and demand DB 142 and the system capacity DB 143. , Read data such as system capacity of substation 3 etc. (step S201). Based on various acquired data, the control unit 11 estimates an oversupply location in the system S in which the supply power exceeds the upper limit value (step S202).

The control unit 11 calculates the excess power supply (surplus power) at the estimated excess supply location, and arranges the mining machine 5 (and the power storage device 6) and the number of mining machines 5 (and the power storage device 6) so that the calculated supply power can be consumed. Is determined (step S203). The control unit 11 outputs the determined arrangement information indicating the arrangement location and the number of mining machines 5 to the terminal 2 (step S204), and ends a series of processes.

From the above, according to the second embodiment, the optimum arrangement of the mining machine 5 can be presented to the administrator.

(Embodiment 3)
In the present embodiment, a supplier (customer, power generation company, etc.) who supplies the mined virtual currency to the system S by the power generation facility 4 and a manager (electric power company, etc.) who manages the system S The form of distribution between them will be described.
FIG. 11 is an explanatory diagram showing an outline of the third embodiment. FIG. 11 conceptually illustrates how the mined virtual currency is distributed to the supplier and the manager. An outline of the third embodiment will be described with reference to FIG.

As described in the first embodiment, the server 1 supplies the power supplied from the power generation facility 4 (surplus power) to the mining machine 5 to perform mining. In this case, the administrator (electric power company) may settle in the legal currency or the like and purchase the power from the supplier, but in the present embodiment, the purchase amount of the supplied power is mined in the virtual currency. Make a partial payment and allow the administrator to get the virtual currency equivalent to the remaining profit.

In order to realize the above processing on the blockchain, the server 1 generates a smart contract for distributing the mined virtual currency between the administrator and the supplier, and each node of the blockchain that verifies the transaction. Output (broadcast) to. A smart contract is a program that automatically executes a contract according to the contract conditions agreed in advance by the parties. The server 1 agrees on the contract contents in advance with the supplier, generates a smart contract (for example, a contract account in the case of Ethereum), broadcasts it to each node, and records it in the blockchain.

For example, the server 1 decides in advance the amount of electric power purchased per unit quantity when the administrator purchases electric power from the supplier with the supplier. Further, the server 1 determines whether or not the supplied power (predicted value) exceeds the upper limit value, as in the first embodiment, and determines the supply amount of surplus power supplied from the power generation facility 4 to the mining machine 5. decide. Then, the server 1 calculates the purchase amount when purchasing the surplus electric power of the supply amount determined above based on the purchase amount per unit quantity that has been arranged. The server 1 generates a smart contract that distributes the virtual currency to be mined according to the purchase amount.

For example, the server 1 compares the above purchase amount with the quantity of mined virtual currency at each node of the blockchain to determine whether or not a profit is generated by mining, and if a profit is generated, purchases. Generate a smart contract that sends the amount of virtual currency equivalent to the amount to the supplier and sends the amount of virtual currency equivalent to the profit amount to the administrator. In this case, each node needs rate information to convert virtual currency to legal tender, but for example, refer to the rate information from a reliable external API (third party), or multiple users agree. Various methods can be considered, such as preparing another smart contract (data field contract) that sequentially updates the rate information in the blockchain and referencing it.

The server 1 broadcasts the smart contract generated above to each node of the blockchain. Each node of the blockchain verifies the smart contract and records it on the blockchain if there is no problem.

After that, the server 1 supplies the surplus electric power to the mining machine 5 to execute mining. Then, the server 1 generates and broadcasts a transaction for transferring the mined virtual currency to the above smart contract. Each node that acquired the transaction calls and executes a pre-recorded smart contract, calculates the legal tender conversion amount of the mined virtual currency, and whether or not a profit is generated compared with the above purchase amount. Is determined. Then, each node remits the virtual currency equivalent to the purchase amount to the supplier according to the smart contract, generates a transaction to remit the virtual currency equivalent to the profit amount to the administrator, and records it in the blockchain.

Although not specifically explained above, there is a possibility that the value of the mined virtual currency will be less than the purchase amount and no profit will be generated. In this case, various measures can be considered as contract conditions for smart contracts, such as remittance of all mined virtual currency to the supplier and compensation (remittance) of virtual currency corresponding to the shortfall amount from the administrator's wallet. Be done.

FIG. 12 is a flowchart showing an example of a processing procedure executed by the server 1 according to the third embodiment. The control unit 11 of the server 1 determines that the supplied power exceeds the upper limit value according to the process of the first embodiment, and supplies the surplus power from the power generation facility 4 to the mining machine 5 to perform mining. Execute the following processing.
The control unit 11 purchases surplus electric power based on the amount of electric power purchased per unit quantity previously agreed with the supplier and the amount of surplus electric power supplied from the power generation facility 4 to the mining machine 5. Is calculated (step S301). The control unit 11 generates a smart contract for distributing the mined virtual currency with the supplier based on the calculated purchase amount, and outputs it to each node of the blockchain (step S302). For example, the control unit 11 remits a quantity of virtual currency equivalent to the power supplied from the supplier (power generation facility 4) to the supplier among the mined virtual currencies, and remits the remaining virtual currency to the administrator. To generate. The control unit 11 broadcasts the smart contract to each node for verification (mining) and records it on the blockchain.

The control unit 11 supplies the surplus electric power to the mining machine 5 to execute mining (step S303). The control unit 11 generates a transaction to transfer the mined virtual currency to the smart contract generated in step S304 and outputs it to each node (step S304). Each node that has acquired the transaction calls and executes the smart contract recorded in the blockchain in step S302, and generates a transaction that distributes the mined virtual currency to the administrator and the supplier and remits it. The control unit 11 ends a series of processes.

From the above, according to the third embodiment, it is possible to share profits on a blockchain that is difficult to falsify, and a series of systems can be suitably operated.

The embodiments disclosed this time should be considered to be exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of claims, not the above-mentioned meaning, and is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

1 Server (information processing device)
11 Control unit 12 Main storage unit 13 Communication unit 14 Auxiliary storage unit P program 141 Power generation equipment DB
142 Supply and Demand DB
143 system capacity DB
144 Mining Machine DB
145 Power storage device DB
146 Electricity price DB
2 Terminal 3 Substation 4 Power generation equipment 5 Mining machine (arithmetic unit)
6 Power storage device 7 Demand facility 8 Power supply S system S1 Upper system S2 Lower system

Claims (12)

Acquires supply information regarding the power supply to the power system to which power generation facilities using renewable energy are interconnected.
Based on the supply information, it is determined whether or not the supplied power exceeds a predetermined upper limit value.
When it is determined that the upper limit value is exceeded, the computer executes a process of supplying surplus power corresponding to the difference between the supplied power and the upper limit value to the arithmetic unit that performs the calculation related to the mining of the virtual currency. Demand control method. The demand control method according to claim 1, wherein when it is determined that the upper limit value is exceeded, the surplus power is supplied to the arithmetic unit arranged in the substation equipment that receives the power supplied from the power generation facility. .. The demand control method according to claim 1 or 2, wherein when it is determined that the upper limit value is exceeded, the surplus power generated by the power generation facility is supplied to the arithmetic unit arranged in the power generation facility. .. The demand control method according to any one of claims 1 to 3, wherein the surplus electric power is distributed and supplied to the arithmetic unit and the energy storage device. Acquire demand information indicating the demand power in the power system, and obtain
The demand control method according to any one of claims 1 to 4, wherein it is determined whether or not the supplied power exceeds the demand power based on the supply information and the demand information. The invention according to any one of claims 1 to 5, wherein it is determined whether or not the supplied power exceeds the system capacity with reference to a storage unit that stores the system capacity of the power system. Demand control method. The execution history of mining in the arithmetic unit is stored in the storage unit in association with the arrangement location of the power system in which the arithmetic unit is arranged.
Accepts the designated input of the power system
The demand control method according to any one of claims 1 to 6, wherein the execution history of mining in one or a plurality of the arithmetic units arranged in the designated power system is output. Based on the supply information, an excess supply point where the supplied power exceeds the upper limit value is estimated in the power system.
The demand control method according to any one of claims 1 to 7, wherein the arrangement information indicating that the arithmetic unit should be arranged is output to the excess supply location. It is characterized in that a smart contract that distributes the virtual currency mined by the arithmetic unit with a supplier corresponding to the power generation equipment is generated according to the surplus electric power supplied from the power generation facility to the arithmetic unit. The demand control method according to any one of claims 1 to 8. An acquisition unit that acquires supply information related to the power supplied to the power system to which power generation facilities using renewable energy are interconnected, and
A determination unit that determines whether or not the supplied power exceeds a predetermined upper limit value based on the supply information.
When it is determined that the upper limit value is exceeded, it is provided with a control unit that controls to supply surplus power corresponding to the difference between the supplied power and the upper limit value to the arithmetic unit that performs the calculation related to the mining of the virtual currency. A control device characterized by that. Acquires supply information regarding the power supply to the power system to which power generation facilities using renewable energy are interconnected.
Based on the supply information, it is determined whether or not the supplied power exceeds a predetermined upper limit value.
When it is determined that the upper limit value is exceeded, the computer is executed to control the surplus power corresponding to the difference between the supplied power and the upper limit value to be supplied to the arithmetic unit that performs the calculation related to the mining of the virtual currency. A program characterized by letting you do it. A control device that controls the transmission and distribution of electric power in the power system,
A power generation facility that is connected to the power system and uses renewable energy to generate power,
It is located in the power system and has an arithmetic unit that performs calculations related to virtual currency mining.
The control device is
An acquisition unit that acquires supply information regarding the supplied power supplied to the power system, and
A determination unit that determines whether or not the supplied power exceeds a predetermined upper limit value based on the supply information.
A power system including a control unit that controls to supply surplus power corresponding to a difference between the supplied power and the upper limit value to the arithmetic unit when it is determined that the upper limit value is exceeded.

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