JP2023062823A - Power transaction system - Google Patents

Abstract

An object of the present invention is to increase the chances of charging an electric vehicle.
A broker server (8) acquires the current position of an electric vehicle (5) from an agent (2) of the electric vehicle (5), and based on the acquired current position, a direct trading market where a contract execution place is near the electric vehicle (5). identify. The broker server 8 then transmits to the agent 2 a signal (proposal signal) proposing power trading in the identified direct market. When the agent 2 adopts the proposal signal, the agent 2 prepares an electric power trading plan and makes a bid to the trading market server 3 based on the prepared electric power trading plan.
[Selection drawing] Fig. 8

Description

The present disclosure relates to power trading systems.

Japanese Patent Application Laid-Open No. 2020-150726 (Patent Document 1) discloses an energy management system that performs power management of facilities that are power consumers, and a power supply and demand management device that performs power bidding on the Japan Electric Power Exchange. A power supply and demand management system is disclosed. The power demand-supply management device generates electricity within the bid unit time based on the bid amount of power, the power value currently used by the facility, and the power value expected to be used by the facility after the bid unit time. Calculate the amount of imbalance to be obtained. Then, the power supply and demand management device calculates the control amount required to make the imbalance amount zero, and transmits this control amount to the energy management system. Control variables are transmitted from the energy management system to the facility's battery and loads, and the batteries and loads are controlled according to the control variables.

Japanese Patent Application Laid-Open No. 2020-150726

By the way, in recent years, electric vehicles using batteries as a power source have become popular, and users are becoming more and more interested in electric vehicles. From the viewpoint of environmental problems, etc., it is desirable that electric vehicles become more widespread.

However, the current situation is that the number of charging facilities for charging the batteries of electric vehicles is still small compared to gas stations. Therefore, there are many users who feel uneasy about not being able to obtain a charging opportunity. There is a demand for a measure that alleviates users' anxiety about the lack of charging opportunities and promotes further popularization of electric vehicles.

The present disclosure has been made to solve the above problems, and its purpose is to increase the charging opportunities of electric vehicles.

A power trading system according to an aspect of this disclosure includes an information processing device that creates a power trading plan for electric vehicles to trade power through a power trading market, a first server that manages the power trading market, and a power trading market. and a second server for distributing information about. The second server transmits a signal proposing an electric power trade to the information processing device when the electric vehicle is located within a predetermined distance from the execution place of the contract in the electric power trading market. When the information processing device adopts the above proposal, the information processing device makes a bid for the first server.

According to the above configuration, for example, when the electric vehicle moves within a predetermined distance from the place where the contract is executed in the power trading market while the vehicle is running, the second server transmits a signal proposing a power trading (proposal signal) to the information processing device. be done. By receiving the proposal signal, the information processing device can recognize that power trading is possible in the neighborhood. Accordingly, the information processing device can adopt the above proposal and bid for the first server that manages the power trading market. If the bid is successful, the electric vehicle can receive power through the power exchange market. In this way, the power trading system can increase the charging opportunities for electric vehicles.

According to the present disclosure, it is possible to increase charging opportunities for electric vehicles.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure for demonstrating an example of the power trading system which concerns on embodiment. 1 is a diagram schematically showing an example of a P2P power trading market; FIG. FIG. 2 is a diagram illustrating an example of bidding in a general trading market for P2P power trading; FIG. 2 is a diagram illustrating an example of bidding in a direct market for P2P power trading; FIG. 2 is a diagram showing an example of hardware configurations of agents, marketplace servers, and broker servers; It is a figure which shows an example of resource information. It is a figure which shows an example of agent information. 2 is a block diagram functionally showing the configuration of an agent, a marketplace server and a broker server; FIG. FIG. 10 is a flow chart showing a procedure of processing related to transmission of a proposal signal, which is executed in a broker server; FIG. 4 is a flow chart showing a procedure for processing a proposal signal, which is executed in an agent; FIG. 10 is a flow chart showing the procedure of contract-related processing executed in the trading market server; FIG.

Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The same or corresponding parts in the drawings are denoted by the same reference numerals, and the description thereof will not be repeated.

<Configuration of power trading system>
FIG. 1 is a diagram for explaining an example of a power trading system 1 according to an embodiment. Referring to FIG. 1, electricity trading system 1 includes trading market server 3, electric vehicles 5A to 5E, charging/discharging facilities 6A to 6H, factory 7A, company 7B, commercial facility 7C, and residence 7D. , a store 7E, a broker server 8, an electric power company 9, and a power transmission line PL. The electric vehicles 5A to 5E, the factory 7A, the company 7B, the commercial facility 7C, the residence 7D, and the store 7E are power resources in the power trading system 1 and function as so-called prosumers. Each power resource is configured to be able to exchange power with other power resources through the power grid PL or directly.

Note that the number of electric vehicles and the number of charging/discharging facilities are not limited to the illustrated numbers. Also, the facilities such as the factory 7A are not limited to those shown in the drawings. In the following, the electric vehicles 5A to 5E may be referred to as "electric vehicles 5" without distinction, and the charging/discharging facilities 6A to 6H may be referred to as "charging/discharging facilities 6" without distinction. There is Also, the factory 7A, the company 7B, the commercial facility 7C, the residence 7D, and the store 7E may be referred to as "facility 7" without distinction.

The electric vehicle 5 is an electric vehicle that can run using electric power stored in a battery. The electric vehicle 5 is electrically connected to a charging/discharging facility 6 and is configured such that the battery can be charged/discharged through the charging/discharging facility 6 . The electric vehicle 5 is an electric vehicle (BEV: Battery Electric Vehicle). The electric vehicle 5 is configured to be electrically connectable to the charging/discharging equipment 6 , and can transmit/receive electric power to/from the power transmission line PL or the facility 7 through the charging/discharging equipment 6 .

The facility 7 is electrically connected to the power grid PL and can transmit and receive electric power to and from the power grid PL. The facility 7 is also electrically connected to the charging/discharging equipment 6 , and can exchange electric power with the electric vehicle 5 connected to the charging/discharging equipment 6 . The facility 7 is equipped with a battery that stores electric power, and is configured so that the battery can be charged and discharged through the power transmission line PL or the charging/discharging facility 6 .

The charging/discharging equipment 6 is electrically connected to the power transmission line PL or facility 7 . The charging/discharging equipment 6 includes a power cable. The charging/discharging equipment 6 can be electrically connected to the electric vehicle 5 through a power cable, and the electric vehicle 5 can transmit/receive electric power to/from the power transmission line PL or the facility 7 through the charging/discharging equipment 6 to which it is connected.

The electric power company 9 manages power plants (not shown). Electric power generated by the power plant is supplied to each facility 7 through a transmission line PL (system power network), and can also be supplied to the electric vehicle 5A connected to the charging/discharging equipment 6A-6C.

Conventionally, electric power has been supplied to the facility 7 and the electric vehicle 5 from the power plant of the electric power company 9 through the transmission line PL. Due to the liberalization of electric power and the spread of renewable energy generation technology in recent years, not only the electric power company 9 but also electric power sales transactions between individuals or corporations having electric power resources are being considered. In power trading system 1 according to the present embodiment, power trading between individuals or corporations (each facility 7 or each electric vehicle 5), that is, P2P (Peer to Peer) power trading can be performed.

The trading market server 3 provides a platform for conducting P2P power trading. The trading market server 3 is configured to be able to communicate with the electric vehicle 5, the charging/discharging facility 6, the facility 7, and the broker server 8 through the communication network. Although the details will be described later, a plurality of power trading markets are formed in the trading market server 3 . When the electric vehicle 5 or the facility 7 desires P2P power trading, the electric vehicle 5 or the facility 7 (more specifically, an agent (described later) that executes the electric power trading of the electric vehicle 5 or the facility 7) accepts the electric power trading. After designating the desired power trading market, a bid is made to the trading market server 3 using, for example, the time zone in which the power is to be traded, the amount of power to be traded for each unit time period, and the transaction price as bidding conditions. The trading market server 3 uses an arbitrary algorithm to execute a contract for power trading between a seller and a buyer who meet the bid conditions, and treats bids for which a partner who meets the conditions cannot be found as uncontracted. Note that "bidding" means the act of placing an order for power trading (buying or selling) or the order itself. "Commitment" means the act of deciding to enter into a tendered power transaction, or the decision itself. Note that the marketplace server 3 according to the present embodiment corresponds to an example of the "first server" according to the present disclosure.

FIG. 2 is a diagram schematically showing an example of the P2P power trading market. Referring to FIG. 2, in the P2P power trading market, an "agent" executing a bid for the P2P power trading market plans and executes bidding, manages agreements, and creates charge/discharge plans based on agreements. be An agent is provided for each electric vehicle 5 or facility 7 . In this embodiment, there are a plurality of mobile agent agents 2A to 2D corresponding to the electric vehicle 5, a plurality of business agent agents 4A to 4D corresponding to the factory 7A, etc., and a plurality of housing agents 4E and 4F corresponding to the housing. . For example, in the case of the electric vehicle 5, the mobile agent of the electric vehicle 5 creates an electric power trading plan (bidding plan) for the P2P electric power trading market, and the mobile agent sends the bid to the P2P electric power trading market (trading market server 3). A bid is made for If it is a house 7D, the housing agent of the house 7D creates a power trading plan (bidding plan) for the P2P power trading market, and the housing agent executes a bid for the P2P power trading market (trading market server 3). be.

In the following description, each of the mobile agents 2A to 2D may be referred to as "agent 2" without distinction. The agent 2 is an "information processing device" that creates a power trading plan for the corresponding power resource to conduct power trading through the P2P power trading market. Further, the business agent agents 4A to 4D and housing agents 4E and 4F may be referred to as "agent 4" without distinguishing between them.

The P2P power trading market includes a “general trading market” and a “direct trading market”. In this embodiment, the general trading market and the direct trading market are formed in the trading market server 3 . The general trading market is a market that handles trading of power transmitted through the power grid PL, and an unspecified number of agents 2 can participate in power trading. In the general trading market, power trading is contracted (matching) according to arbitrary rules determined by the operator who manages the P2P power trading market. As a matching rule, for example, there is a method of establishing a transaction on a first-come, first-served basis when the offered price of the seller matches the offered price of the buyer within a predetermined unit time period. As another matching rule, a method is also possible in which the bids (orders) of the seller and the buyer conducted in a unit time period are arranged once and then the transaction is concluded at an appropriate price.

FIG. 3 is a diagram illustrating an example of bidding in the general trading market for P2P power trading. Referring to FIG. 3, in the general trading market, an unspecified number of sellers bid on a set (p, q) of selling price and power amount for each predetermined unit time period (1, 2, . . . n). On the other hand, an unspecified number of buyers bid on the set (P, Q) of purchase price and power amount. Note that the unit time period is a time width (for example, 30 minutes) set in the general trading market. Transactions of power amount are performed for each power amount (power×unit time period length) transmitted in a unit time period.

Referring to FIG. 2 again, the direct trading market is a market that deals with trading of electric power that is transmitted without going through the transmission line PL after the electric vehicle 5 moves to the location of the facility 7. The ID of the direct trading market is can participate in electricity trading. In the direct trading market, one market is constructed for facility 7 in which charging/discharging equipment 6 is installed. In the direct trading market, power trading is contracted (matching) according to arbitrary rules independently determined by the operator of each market. As a matching rule, the above method described in the general trading market can be adopted. In the present embodiment, the trading market server 3 manages the general trading market and the direct trading market according to matching rules for each P2P power trading market (general trading market and direct trading market). A server corresponding to the trading market server 3 may be provided for each.

FIG. 4 is a diagram illustrating an example of bidding in a direct market for P2P power trading. Referring to FIG. 4, in the direct trading market, for each predetermined unit time period (1, 2, . , multiple buyers with direct market IDs bid on purchase price and quantity pairs (P, Q). A unit time period is a time period individually set in the direct trading market. Transactions of power amount are performed for each power amount (power×unit time period length) transmitted in a unit time period.

Referring to FIG. 1 again, the broker server 8 proposes to the electric vehicle 5 power trading on the direct market. Broker server 8 is configured to communicate with trading market server 3 and agents 2 and 4 through a communication network. Although the details will be described later, the broker server 8 stores the contract execution place (the location of the facility 7 or a predetermined place described later) in each direct trading market. The broker server 8 transmits to the agent 2 of the electric vehicle 5 a signal (hereinafter also referred to as a “proposal signal”) that proposes power trading on the direct market near the current position of the electric vehicle 5 . Note that the broker server 8 according to the present embodiment corresponds to an example of the "second server" according to the present disclosure.

Currently, the number of charging facilities for charging the battery of the electric vehicle 5 is still small compared to gas stations. Therefore, not a few users feel uneasy about not being able to get an opportunity to charge the electric vehicle 5 . As described above, the broker server 8 transmits the proposal signal to the agent 2, so that the agent 2 of the electric vehicle 5 running near the direct trading market, for example, knows that it is possible to trade electric power in the neighborhood. can recognize. For example, the agent 2 can take the offer from the broker server 8 and make a direct market bid on the offer to the trading market server 3 . If this bid is concluded, the charging opportunity of the electric vehicle 5 can be obtained. In the power trading system 1 according to the present embodiment, the broker server 8 outputs the proposal signal, so that the chances of charging the electric vehicle 5 can be increased.

<Hardware configuration>
FIG. 5 is a diagram showing an example of the hardware configuration of the agent 2, trading market server 3 and broker server 8. As shown in FIG. With reference to FIG. 5, agent 2 includes processor 21 , memory 22 and communication device 23 . An agent 2 is provided for each electric vehicle 5 (power resource). The agent 2 may be provided in the corresponding electric vehicle 5 or may be provided in a cloud capable of communicating with the corresponding electric vehicle 5 .

The processor 21 is a computing entity (computer) that executes various processes by executing various programs. The processor 21 includes a CPU (Central Processing Unit), FPGA (Field-Programmable Gate Array), GPU (Graphics Processing Unit), and the like. Processor 21 may be configured with processing circuitry.

Memory 22 stores programs and data for processor 21 to execute various processes. The memory 22 is composed of storage media such as ROM (Read Only Memory) and RAM (Random Access Memory). The memory 22 stores an arithmetic program 25 and resource information 26 .

The arithmetic program 25 specifies the processing executed by the processor 21 . For example, the computing program 25 includes a program for executing a bid for the power trading on the P2P power trading market managed by the trading market server 3 to the trading market server 3 .

The resource information 26 includes information on the power resource (electric vehicle 5) corresponding to the agent 2, and particularly includes information on bids and contracts for power transactions.

FIG. 6 is a diagram showing an example of the resource information 26. As shown in FIG. In FIG. 6, resource information 26 in the agent 2 (mobile agent) of the electric vehicle 5 is shown. Referring to FIG. 6, resource information 26 includes an ID, type information, trip information, SOC (State Of Charge) information, connection information, bid information, contract information, charging/discharging plan, and charging/discharging plan. including discharge performance.

The ID includes identification information for specifying the electric vehicle 5 . The type information includes information on the type of power resource. The information about the type of power resource includes, for example, information for specifying electric vehicles, businesses, houses, and the like. Since FIG. 6 shows an example of agent 2, the type information includes information for specifying an electric vehicle. For example, the type information of the resource information held by the agent 4 includes, for example, information for specifying a business operator or a house. The trip information includes information about travel history such as past travel routes and travel times. The SOC information includes information on the amount of electric power (charge amount) currently stored in the battery. The connection information includes information for specifying whether or not the charging/discharging equipment 6 is currently connected. Bid information includes information about past bidding history and information about current bidding. The contract information includes information on past contract history and information for specifying whether a currently executed bid has been contracted. The charging/discharging plan includes information on the contracted charging/discharging plan for the power resource. The charge/discharge record includes information on the charge/discharge result for the charge/discharge plan.

The trip information is replaced with history information in the agent 4 (business agent or housing agent) of the facility 7 (factory 7A, housing 7D, etc.). The history information includes information about past power usage history in the facility 7 . The information on the usage history may be divided, for example, by day of the week or time zone. The connection information is information used by the agent 2 (mobile agent) of the electric vehicle 5 and is blank for the agent 4 of the facility 7 .

Referring to FIG. 5 again, the communication device 23 transmits and receives various data to and from the trading market server 3 through the communication network.

The exchange market server 3 includes a processor 31 , a memory 32 and a communication device 33 . The trading market server 3 is a device that manages P2P power trading between power resources in the P2P power trading market (general trading market and direct trading market), and executes processing related to power trading.

The processor 31 is a computing entity (computer) that executes various processes by executing various programs. The processor 31 is composed of a CPU, FPGA, GPU, and the like. The processor 31 may be configured by an arithmetic circuit.

Memory 32 stores programs and data for processor 31 to execute various processes. The memory 32 is composed of storage media such as ROM and RAM. The memory 32 stores an arithmetic program 35, agent information 36, system information 37, and market information 38. FIG.

The arithmetic program 35 specifies the processing executed by the processor 31 . For example, the computing program 35 includes a program for executing bid processing for accepting bids from a plurality of agents 2 and 4 and contract processing based on the bids. In contract processing, a power transaction contract is executed between a seller and a buyer who meet the bidding conditions, and bids for which a counterparty who meets the conditions cannot be found are processed as uncontracted.

The agent information 36 includes information on the agents 2 and 4 participating in the P2P power trading market managed by the trading market server 3, and particularly includes information on bids and contracts for power trading for each agent 2 and 4.

FIG. 7 is a diagram showing an example of the agent information 36. As shown in FIG. Referring to FIG. 7, agent information 36 includes an ID, type information, bid information, and agreement information.

The ID includes identification information for identifying the agent 2 participating in the P2P power trading market managed by the trading market server 3 . The type information includes information about the type of power resource, such as information for specifying an electric vehicle, a business operator, a house, and the like. The bidding information includes information on past bidding history and information on current bidding in each agent 2,4. The contract information includes information on past contract history in each agent 2, 4, and information for specifying whether or not the current bid has been contracted.

Referring to FIG. 5 again, the grid information 37 includes grid power supply and demand information provided by the power company 9 . The grid information 37 may include grid power prices provided by the power company 9 . The system information 37 may also include information about renewable energy power generation equipment (solar power generation equipment, wind power generation equipment, hydraulic power generation equipment, etc.) that transmits power to the power transmission line PL.

Market information 38 is generated by processor 31 and provided to broker server 8 . The market information 38 is prepared for each direct trading market, and includes, for example, the grid information 37 and information on the quoted price of power in each P2P power trading market. The market information 38 is used by the broker server 8 to predict the market price of electricity in the direct market. In addition to the above, the market information 38 may include various other information used to predict the market price of electricity. Market information 38 is stored in memory 82 at broker server 8 as market information 88 .

The communication device 33 transmits and receives various data to and from the agents 2 and 4 and the broker server 8 through the communication network.

Broker server 8 includes processor 81 , memory 82 and communication device 83 . The broker server 8 proposes to the agent 2 of the electric vehicle 5 a power transaction on the direct market.

The processor 81 is a computing entity (computer) that executes various processes by executing various programs. The processor 81 is composed of a CPU, FPGA, GPU, and the like. The processor 81 may be configured by an arithmetic circuit.

Memory 82 stores programs and data for processor 81 to execute various processes. The memory 82 is composed of storage media such as ROM and RAM. Memory 82 stores calculation program 85 , location information 87 , and market information 88 .

The arithmetic program 85 specifies the processing executed by the processor 81 . For example, the computing program 85 includes a program for executing processing for creating a proposal signal and transmitting it to the target agent 2 .

Location information 87 includes information on the execution location of the deal in the direct market. The contract execution place is the location of the facility 7 corresponding to the direct market. Further, the contract execution place also includes a predetermined place. Some facilities 7 have power supply vehicles (hereinafter also referred to as "battery pallets") for supplying power to other vehicles. For example, in FIG. 1, commercial establishment 7C owns battery pallet 10. In FIG. A facility 7 that owns the battery pallet 10 provides a service of delivering power to a predetermined location. For example, in the direct trading market, when a power transaction is contracted with the commercial facility 7C, the battery pallet 10 delivers the power to a predetermined location, and the electric vehicle 5 and the battery pallet 10 at the predetermined location Power is transferred and received. For example, the information on the contract execution locations at the factory 7A, the company 7B, the residence 7D, and the shop 7E includes the information on the locations of the factory 7A, the company 7B, the residence 7D, and the shop 7E, respectively. The information on the contract execution place in the commercial facility 7C includes the information on the location of the commercial facility 7C and the information on the predetermined place. The predetermined location is, for example, a location within a certain distance range (distributable range) from the location of the commercial facility 7C. Further, the predetermined location is not limited to a predetermined location, and may be a location that the agent 2 can arbitrarily designate within the power distribution range.

The market information 88 is the market information 38 received from the trading market server 3 through the communication device 83 .

The communication device 83 transmits and receives various data to and from the trading market server 3 and the agent 2 through the communication network.

The processor 81 predicts the power trading price in each of the direct trading markets at predetermined intervals. Also, the processor 81 receives the position information of the electric vehicle 5 from the agent 2 at a predetermined cycle, and identifies a direct trading market (for example, the commercial facility 7C) where the contract execution place is within a predetermined distance from the current position of the electric vehicle 5. do. The processor 81 creates a proposal signal including the location information 87 of the specified direct trading market and the predicted value of the electricity trading price (hereinafter also referred to as "predicted electricity price"), and transmits the proposal signal through the communication device 83 to the agent. 2. The predetermined distance may be, for example, a straight distance on a map from the current position of the electric vehicle 5 to the contract execution place, or a distance on the route from the current position of the electric car 5 to the contract execution place. may be The predetermined distance is set to a distance, such as 10 km or 20 km, that can be moved between the contracted time and the contracted time. In setting the predetermined distance, traffic conditions in each region (information on traffic volume in each time zone, etc.) may be taken into consideration.

FIG. 8 is a block diagram functionally showing the configurations of the agent 2, the trading market server 3 and the broker server 8. As shown in FIG. The trading market server 3 includes a system information acquiring section 310 , a market information creating section 320 , a bid accepting section 330 and a contracting section 340 . Processor 31 functions as system information acquisition unit 310 , market information creation unit 320 , bid reception unit 330 , and agreement unit 340 by executing operation program 35 stored in memory 32 , for example. The system information acquiring unit 310, the market information creating unit 320, the bid receiving unit 330, and the contracting unit 340 may be implemented by dedicated hardware (electronic circuits), for example.

The system information acquisition unit 310 acquires system information 37 from the electric power company 9 . The system information acquisition unit 310 outputs the acquired system information 37 to the market information creation unit 320 .

The market information creation unit 320 creates market information 38 including at least the system information 37 and the information on the quoted price of power for each of the P2P power trading markets. The market information creating unit 320 transmits the created market information 38 to the broker server 8 .

Bid acceptance unit 330 and agreement unit 340 function as a trading platform. The bid receiving unit 330 receives bids from the agents 2 and 4. The contracting unit 340 contracts electricity trading according to arbitrary rules determined by the operator managing the general trading market or arbitrary rules uniquely defined by each operator of the direct trading market. Further functions of the bid accepting unit 330 and the contracting unit 340 will be described later.

The broker server 8 includes an information acquisition section 810 , a market information acquisition section 820 , a market electricity price prediction section 830 , an identification section 840 and a proposal section 850 . Processor 81 functions as information acquisition unit 810, market information acquisition unit 820, market electricity price prediction unit 830, identification unit 840, and proposal unit 850 by executing operation program 85 stored in memory 82, for example. . Information acquisition unit 810, market information acquisition unit 820, market electricity price prediction unit 830, identification unit 840, and proposal unit 850 may be realized by dedicated hardware (electronic circuit), for example.

The information acquisition unit 810 acquires position information of the electric vehicle 5 from the agent 2 at predetermined intervals. Information acquisition section 810 may, for example, output a position information transmission request to agent 2 at a predetermined cycle, and obtain a response from agent 2 . The information acquisition unit 810 outputs the position information of the electric vehicle 5 acquired from the agent 2 to the identification unit 840 .

The market information acquisition unit 820 acquires market information 38 from the trading market server 3 . The market information 38 includes information on each market of the P2P power trading market. Market information acquisition section 820 outputs the acquired market information to market electricity price prediction section 830 .

The market electricity price prediction unit 830 predicts the price (unit price) of electricity (purchased electricity and sold electricity) in each market of the P2P electricity trading market. The market electricity price prediction unit 830 calculates the predicted price of electricity (predicted electricity price) in each market of the P2P electricity trading market using the system information and the quote information included in the market information. Market electricity price prediction unit 830 outputs the expected electricity price to proposal unit 850 .

Based on the position information of electric vehicle 5 received from information acquisition unit 810 and location information 87, identification unit 840 identifies a direct trading market (for example, commercial facility 7C) where the contract execution place is a predetermined distance from electric vehicle 5. Identify. The identification unit 840 outputs information indicating the identified direct trading market to the proposal unit 850 . Here, it is assumed that the direct trading market corresponding to commercial facility 7C has been specified.

The proposal unit 850 extracts the location information corresponding to the commercial facility 7C from the location information 87 based on the information indicating the commercial facility 7C (specified direct trading market) received from the specifying unit 840 . In addition, the proposal unit 850 selects the direct trading market corresponding to the commercial facility 7C from the expected power prices in each market of the P2P power trading market predicted by the market power price prediction unit 830 based on the information indicating the commercial facility 7C. Extract the expected electricity price of Then, the proposal unit 850 creates a proposal signal including the location information corresponding to the commercial facility 7C and the expected electricity price corresponding to the commercial facility 7C, and transmits the created proposal signal to the agent 2 .

Agent 2 includes a responder 210 , a proposal acquirer 220 , a power trading plan generator 230 and a bidder 240 . Processor 21 functions as response unit 210 , proposal acquisition unit 220 , power trading plan creation unit 230 , and bidding unit 240 by executing operation program 25 stored in memory 22 , for example. Responding unit 210, proposal acquiring unit 220, power trading plan creating unit 230, and bidding unit 240 may be realized, for example, by dedicated hardware (electronic circuits).

The response unit 210 transmits the current position information of the electric vehicle 5 to the broker server 8 in response to the transmission request of the position information of the electric vehicle 5 from the broker server 8 . Note that the response unit 210 may be configured to transmit the current position information of the electric vehicle 5 to the broker server 8 at predetermined intervals regardless of whether or not the transmission request is received.

The proposal obtaining unit 220 is configured to obtain a proposal signal from the broker server 8 through the communication device 23 . Proposal acquisition unit 220 outputs the acquired proposal signal to power trading plan creation unit 230 .

Power trading plan creating unit 230 creates a power trading plan (charging/discharging plan) based on the proposal signal received from proposal acquiring unit 220 . Specifically, first, using the route to the destination of the electric vehicle 5 and the contract execution place (the location of the commercial facility 7C or a predetermined location), the predict increasing distance and time over time. The power trading plan creation unit 230 estimates the amount of power consumption required to reach the destination, taking into account this increase. Based on the predicted value of power consumption and the current SOC (storage amount) of electric vehicle 5, power trading plan creation unit 230 determines whether to conduct a buy bid or a sell bid. Then, the power trading plan creation unit 230 creates a cost-optimal power trading plan based on the predicted value of the power trading price. Power trading plan creation unit 230 outputs the power trading plan to bidding unit 240 . Note that the power trading plan creation unit 230 does not create a power trading plan when the charging/discharging facility 6 is at the destination and the destination can be reached with a storage amount equal to or greater than the reference amount, and the proposal is made without creating the power trading plan. Discard the signal. The reference amount is, for example, the amount of electricity stored in the battery that is expected to allow the electric vehicle 5 to travel a reference distance (eg, 50 km).

The bidding unit 240 executes bidding to the market server 3 based on the power trading plan. Furthermore, the bidding unit 240 transmits information on the electric vehicle 5 to the market server 3 together with the bidding described above. The information on the electric vehicle 5 includes, for example, trip information included in the resource information 26, information on the license plate of the electric vehicle 5, information on the capacity of the battery mounted on the electric vehicle 5, and the like.

The bid reception unit 330 of the marketplace server 3 determines whether or not the electric vehicle 5 is traveling along the route on the itinerary based on the information regarding the electric vehicle 5 . Specifically, the bid receiving unit 330 determines that the electric vehicle 5 is traveling along the route on the itinerary based on the information about the travel history of the electric vehicle 5 included in the trip information and the current position information of the electric vehicle 5. or not. When the bid receiving unit 330 determines that the electric vehicle 5 is traveling on a route different from the route that is normally traveled, it determines that the electric vehicle 5 is traveling on the route on the itinerary. When the bid accepting unit 330 determines that the electric vehicle 5 is traveling the same route as the route that is normally traveled, the bid reception unit 330 determines that the electric vehicle 5 is not traveling the route on the itinerary. When the bid accepting unit 330 determines that the electric vehicle 5 is traveling along the route on the itinerary, the contracting unit 340 sends a signal (hereinafter also referred to as a “traveler signal”) indicating that the electric vehicle 5 is traveling on the route on the itinerary. output to

The agreement unit 340 may give incentives to bids from the corresponding agent 2 when a traveler signal is received. The incentive may be, for example, a reduction from the contracted electricity unit price. This reduced amount may be borne by the operator of the direct trading market (the operator of facility 7). Alternatively, the incentive may be the right to preferentially use the charging/discharging equipment 6 within a contracted execution time (unit time slot). The charge/discharge equipment 6 in the facility 7 is limited. For example, when a contract is executed for each unit time period, if a contract cannot be executed for all electric vehicles 5 at the same time (when the number of electric vehicles 5 is large for the charging/discharging facility 6), the unit Waiting for a turn within the time zone is performed. In such a case, the electric vehicle 5 that is traveling the route on the itinerary is given the right to use the charging/discharging facility 6 preferentially to the electric vehicle 5 that is not traveling on the route on the itinerary. Further, when a contract is executed with the battery pallet 10 at a predetermined place, the incentive may be the right to preferentially execute the contract with the battery pallet 10 . When the number of electric vehicles 5 is large with respect to the battery pallet 10, the contracts cannot be executed at the same time, so a waiting is performed. In such a case, the electric vehicle 5 that is traveling on the route on the itinerary has the right to execute a contract with the battery pallet 10 preferentially over the electric vehicle 5 that is not traveling on the route on the itinerary. to give

FIG. 9 is a flow chart showing a procedure of processing related to transmission of a proposal signal, which is executed in the broker server 8. As shown in FIG. The processing of this flowchart is started, for example, when the broker server 8 is activated, and is repeatedly executed in each predetermined control cycle. In addition, below, each step of a flowchart is abbreviated as "S."

At S<b>1 , the broker server 8 acquires market information from the trading market server 3 . As described above, market information 38 includes information for each market in the P2P power trading market.

In S2, the broker server 8 predicts the price (unit price) of power (purchased power and sold power) in each of the P2P power trading markets.

In S<b>3 , the broker server 8 requests the agent 2 to transmit the location information of the electric vehicle 5 .

In S<b>4 , the broker server 8 acquires the position information of the electric vehicle 5 from the agent 2 .

At S5, the broker server 8 selects a direct trading market where the contract execution place is at a predetermined distance from the electric vehicle 5 based on the location information of the electric vehicle 5 received at S4 and the location information 87 stored in the memory 82. Identify. Here, it is assumed that a direct trading market corresponding to commercial facility 7C has been identified.

At S6, the broker server 8 extracts the location information corresponding to the commercial facility 7C from the location information 87. FIG. Also, the broker server 8 extracts the expected power price in the direct trading market corresponding to the commercial facility 7C from the expected power prices in each of the P2P power trading markets predicted in S2. The broker server 8 then creates a proposal signal including the location information corresponding to the commercial facility 7C and the expected electricity price corresponding to the commercial facility 7C, and transmits the created proposal signal to the agent 2 .

FIG. 10 is a flow chart showing the procedure for processing the proposal signal, which is executed in the agent 2. As shown in FIG. The processing of this flow chart is started, for example, when the agent 2 is activated, and is repeatedly executed in each predetermined control period.

At S<b>10 , the agent 2 determines whether or not a proposal signal has been received from the broker server 8 . When the agent 2 determines that the proposal signal has not been received from the broker server 8 (NO in S10), the process returns. When the agent 2 determines that the proposal signal has been received from the broker server 8 (YES in S10), the process proceeds to S11.

At S11, the agent 2 determines whether or not to create an electricity trading plan. Specifically, the agent 2 determines whether or not the condition that the electric vehicle 5 has the charge/discharge facility 6 at the destination and that the vehicle can arrive at the destination with a storage amount equal to or greater than the reference amount is satisfied. . When the agent 2 determines that the conditions are satisfied, the agent 2 decides not to adopt the proposal signal and not create the power trading plan (NO in S11), and advances the process to S12. When the agent 2 determines that the conditions are not satisfied, the agent 2 decides to adopt the proposal signal and prepare the power trading plan (YES in S11), and advances the process to S13.

At S12, the agent 2 discards the proposal signal received at S10 and returns the process to return.

In S13, the agent 2 uses the route to the destination of the electric vehicle 5 and the contract execution place (the location of the commercial facility 7C or a predetermined location) to predict the incremented distance and time. The agent 2 estimates the amount of power consumption required to reach the destination, taking into account this increase. It should be noted that the agent 2 may determine, for example, the current position of the electric vehicle 5 to determine whether the execution place of the agreement is the location of the commercial facility 7C or a predetermined place. For example, the agent 2 may determine whichever is closer to the current position of the electric vehicle 5 as the contract execution place.

At S14, the agent 2 determines whether to place a buy bid or a sell bid based on the predicted value of the power consumption predicted at S13 and the current SOC (storage amount) of the electric vehicle 5, A cost-optimal power trading plan is created based on the predicted value of the power trading price.

In S<b>15 , the agent 2 executes a bid based on the power trading plan to the market server 3 and transmits information on the electric vehicle 5 to the market server 3 .

FIG. 11 is a flow chart showing the procedure of contract-related processing executed in the trading market server 3 . The processing of this flow chart is started, for example, when the agent 2 is activated, and is repeatedly executed in each predetermined control period.

At S20, the trading market server 3 accepts bids from the agents 2,4.
At S21, the marketplace server 3 determines whether the bid at S20 is from the agent 2 (mobile agent). If the bid in S20 is from the agent 2 (YES in S21), the market server 3 advances the process to S22. If the bid in S20 is not from the agent 2 (NO in S21), the trading market server 3 advances the process to S24.

In S22, the marketplace server 3 determines whether or not the electric vehicle 5 corresponding to the agent 2 who has made a bid is traveling along the route on the itinerary. In other words, the marketplace server 3 determines whether the user of the electric vehicle 5 is a traveler. When the market server 3 determines that the electric vehicle 5 is traveling along the route on the itinerary (YES in S22), the process proceeds to S23. When the market server 3 determines that the electric vehicle 5 is not traveling along the route on the itinerary (NO in S22), the process proceeds to S24.

At S23, the marketplace server 3 decides to give an incentive to the agent 2's bid. The incentive is, for example, a reduction from the contracted electricity unit price.

At S24, the trading market server 3 decides not to give incentives to bids from agents 2 or 4.

In S25, the trading market server 3, taking into account the results of S23 or S24, applies arbitrary rules determined by operators managing the general trading market or arbitrary rules independently determined by each operator of the direct trading market. Power trading is executed according to the rules of

As described above, in the power trading system 1 according to the present embodiment, the broker server 8 transmits to the agent 2 a proposal signal that proposes power trading in the direct market. As a result, for example, when the electric vehicle 5 is traveling along the route on the itinerary, it is possible to recognize that it is possible to trade electric power for charging the on-vehicle battery. have the opportunity to participate. Therefore, the chances of charging the electric vehicle 5 can be increased.

Also, the power transaction proposed by the broker server 8 is a power transaction in the direct market where the contract execution place is within a predetermined distance from the current position of the electric vehicle 5 . Therefore, the agent 2 and the electric vehicle 5 can efficiently know only the charging locations relatively close to the current position of the electric vehicle 5 .

Furthermore, the trading market server 3 gives incentives to bids from the electric vehicles 5 traveling on the route on the itinerary. As a result, the number of users who want to use the electric vehicle 5 for travel can be increased. Therefore, the popularization of electric vehicles can be promoted.

The battery pallet 10 may be accompanied by an automatic charging robot arm. The automatic charging robot arm includes, for example, a connector that can be connected to the inlet of the electric vehicle 5, a mechanism that recognizes the inlet and connects the connector to the inlet, and a reading device that can read the license plate of the electric vehicle 5. have. The automatic charging robot arm identifies the contracted electric vehicle 5 based on the license plate read by the reader. Then, a connector is connected to the inlet of the identified electric vehicle 5 to electrically connect the battery pallet 10 and the electric vehicle 5 . Electric power is exchanged between the battery pallet 10 and the electric vehicle 5, and the contract is executed. In this way, by attaching an automatic charging robot arm to the battery pallet 10, a contract can be executed without requiring user's operation.

The embodiments disclosed this time should be considered as examples and not restrictive in all respects. The scope of the present disclosure is indicated by the scope of claims rather than the description of the above-described embodiments, and is intended to include all modifications within the scope and meaning equivalent to the scope of the claims.

1 electricity trading system, 2 agents, 2A-2D mobile agents, 3 trading market servers, 4 agents, 4A-4D business operator agents, 4E, 4F housing agents, 5, 5A-5E electric vehicles, 6, 6A-6H charging Discharge facility, 7 facility, 7A factory, 7B company, 7C commercial facility, 7D house, 7E store, 8 broker server, 9 electric power company, 10 battery pallet, 21 processor, 22 memory, 23 communication device, 25 arithmetic program, 26 resource information, 31 processor, 32 memory, 33 communication device, 35 operation program, 36 agent information, 37 system information, 38 market information, 81 processor, 82 memory, 83 communication device, 85 operation program, 87 location information, 88 market information, 210 response unit 220 proposal acquisition unit 230 power trading plan creation unit 240 bidding unit 310 system information acquisition unit 320 market information creation unit 330 bid reception unit 340 agreement unit 810 information acquisition unit 820 market information acquisition Part, 830 Market Power Price Prediction Part, 840 Identification Part, 850 Proposal Part, PL Grid.

Claims (1)

an information processing device that creates a power trading plan for electric vehicles to trade power through the power trading market;
a first server that manages the power trading market;
a second server that distributes information about the power trading market;
The second server transmits a signal proposing a power transaction to the information processing device when the electric vehicle is located within a predetermined distance from a contract execution place in the power trading market,
The power trading system, wherein the information processing device makes a bid for the first server when adopting the proposal.

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