Electricity trading system and electricity trading method

Abstract

This invention provides a power trading system and method that enable the revitalization of power trading in the integration of EVs and smart grids. [Solution] When the electricity demand situation meets predetermined conditions, the management device 1 transmits first information indicating the electricity purchase price to each of the multiple electricity trading devices. When an electricity trading device receives the first information, it determines whether or not to supply the available electricity to the electricity recipient based on the available electricity and the purchase price indicated by the first information. If it determines to supply the available electricity, it transmits second information indicating the available electricity to the management device. The management device identifies specific electricity trading devices from the multiple electricity trading devices in order of the amount of available electricity indicated by the second information, until the total amount of available electricity indicated by the second information received from the electricity trading devices reaches the amount of electricity requested. The management device then transmits third information to the identified electricity trading devices indicating that it is requesting the supply of available electricity.

Description

[Technical Field]

[0001] The present invention relates to a power trading system and a power trading method. [Background technology]

[0002] In recent years, electric vehicles (EVs) and smart grids have been By linking these systems, it will be useful for power management, such as adjusting the supply balance of renewable energy. It has been proposed that they be erected. Specifically, in this case, for example, during peak power consumption, EVs would be... By becoming a supplier of electrical energy, the peak demand for electrical energy is mitigated (patent). See references 1 and 2. [Prior art documents] [Non-patent literature]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-018608 [Patent Document 2] Japanese Patent Publication No. 2021-157450 [Overview of the project] [Problems that the invention aims to solve]

[0004] Here, in the integration of EVs and smart grids as described above, the smart grid The energy management device (hereinafter also simply referred to as the management device) in each EV is, for example, Based on information about surplus power, send a request to each EV to supply power. And each EV, in this case, for example, based on information transmitted from the management device, A decision is made on whether or not to supply electricity to the grid (i.e., sell electricity). Therefore, smart grids provide the necessary power at the necessary times (for example, during peak power consumption). It becomes possible to receive power supply from the EV.

[0005] However, each EV may not have specific criteria for determining whether to supply power to, for example, a smart grid. Therefore, each EV cannot, for example, independently determine whether to supply power, and cannot spontaneously supply power to the smart grid. Thus, in the cooperation between the EV and the smart grid as described above, there is a possibility that power transactions between the EV and the smart grid may not be activated. Therefore, there is a possibility that each EV may not have specific criteria for determining whether to supply power to, for example, a smart grid. Therefore, each EV cannot, for example, independently determine whether to supply power, and cannot spontaneously supply power to the smart grid. Thus, in the cooperation between the EV and the smart grid as described above, there is a possibility that power transactions between the EV and the smart grid may not be activated. Therefore, each EV cannot, for example, independently determine whether to supply power, and cannot spontaneously supply power to the smart grid. Thus, in the cooperation between the EV and the smart grid as described above, there is a possibility that power transactions between the EV and the smart grid may not be activated. Therefore, in the cooperation between the EV and the smart grid as described above, there is a possibility that power transactions between the EV and the smart grid may not be activated. Therefore, in the cooperation between the EV and the smart grid as described above, there is a possibility that power transactions between the EV and the smart grid may not be activated. Therefore, in the cooperation between the EV and the smart grid as described above, there is a possibility that power transactions between the EV and the smart grid may not be activated. <​​​​​​​​​​​​​​​​​​​​​​​​​​​Request a specific power trading device to supply the available power until the power demand is reached Identify from the plurality of power trading devices in descending order of the available power indicated by the second information For each of the identified specific power trading devices, request the supply of the available power Transmit third information indicating this

Advantages of the Invention

[0008] [[ID=​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​ [Figure 10] Figure 10 illustrates a specific example of the power trading system 10 in this embodiment. [Figure 11] Figure 11 is a diagram illustrating a specific example of the power trading system 10 in this embodiment. [Modes for carrying out the invention]

[0010] Embodiments of the present invention will be described below with reference to the drawings. However, in practice The examples of application do not limit the technical scope of the present invention.

[0011] [Example configuration of a conventional electricity trading system 10] First, we will explain a specific example of a conventional electricity trading system 100. Figure 1 shows a conventional system. This is a diagram illustrating a specific example of the electricity trading system 100.

[0012] The electricity trading system 100 shown in Figure 1, for example, uses non-renewable or renewable resources. A power supplier 101 that converts and supplies electricity, a power grid 102 that transmits electricity, and a power supply The power companies that perform the transactions, the power market, the power exchange, and other power trading entities 103, and the power consumers Includes power consumers 104. Hereinafter, power suppliers 101 include, for example, non-renewable resources or Various equipment for supplying electricity from renewable resources, and computers for controlling the power supply. The explanation will assume that such control devices are included. Furthermore, the power grid 102 includes, for example, power This explanation will include control devices such as computers that control the transmission of electricity. The power trader 103 includes, for example, a control device such as a computer that controls the trading of electricity. The explanation will be given assuming that electricity consumers 104 receive electricity. This includes various necessary equipment and control devices such as computers that control the power supply. We will explain it as follows.

[0013] In the example shown in Figure 1, region R1 represents a configuration for power trading. Also, region R Figure 2 shows the configuration for supplying electricity. Specifically, in region R1, electricity consumers 10 4, for example, enters into a contract with electricity trader 103 regarding electricity trading, and The power supply request is transmitted to the power supplier 101 via [this method]. Subsequently, in area R2, The power network 102, for example, provides electricity to electricity consumers 104, and electricity traders 103 and electricity consumers 10 Power transmission will be carried out in accordance with the contract with 4.

[0014] Here, for example, the amount of electricity supplied from electricity supplier 101 to electricity consumer 104 is the amount of electricity If the amount of electricity supplied exceeds the amount available from supplier 101, power outages will occur in homes, factories, etc. There is a possibility that this will happen. And in such a case, the power supplier 101 will restore power as quickly as possible. It is necessary to resolve this issue.

[0015] However, in the conventional power trading system 100 shown in Figure 1, the above-mentioned shutdown There may be a lack of flexibility in responding to emergency measures such as power outages, and restoration may take a long time.

[0016] [Example configuration of the electricity trading system 10 implemented in this project] Next, a specific example of the power trading system 10 in this embodiment will be described. Figure 2 Figure 12 illustrates a specific example of the power trading system 10 in this embodiment. That is the case.

[0017] The electricity trading system 10 shown in Figure 2 is included in the electricity trading system 100 described in Figure 1. In addition to the above configurations, there is a management device 1, EV2 (hereinafter also referred to as the power trading device 2), and solar It has panel 3. Hereafter, multiple EV2s will be collectively referred to as an EV fleet. Also, This section explains the case where the management device 1, EV2, and solar panel 3 are installed within the university's facilities. The lighting will be performed, but the management device 1, EV2 and solar panel 3 will be installed, for example, in a location other than the university. It may also be something that can be kicked. Furthermore, below, electricity consumer 104 within the university facilities (for example) We will explain the case where it exists in research buildings, student apartments, and gymnasiums, etc., but regarding power consumption Person 104 may, for example, be located in a place other than a university.

[0018] Specifically, EV2, for example, by connecting to solar panel 3, Charging is performed. Then, EV2 is charged by, for example, the power consumed by power consumer 104. During the work period, surplus power from EV2 (hereinafter referred to as available power) is supplied to electricity consumer 104. To supply.

[0019] More specifically, as shown in Figure 3, the management device 1 is, for example, a power trading company such as a power company. Information showing the electricity charges (hereinafter also referred to as purchase charges) notified by 103, and the university campus Information including power supply requests received from power consumers 104 such as Pass 4 (hereinafter referred to as "supply requests") The information (also called the first information) is sent to each EV2 (S21). The supply request information is, for example, For example, the current electricity rate, information indicating the electricity consumer 104 who sent the supply request, and the supply request The amount of electricity that the electricity consumer 104 who sent the request wants to be supplied (hereinafter also referred to as the requested amount) is included. This is important information. Specifically, the management device 1, for example, at regular intervals (for example, every hour). Once per instance, supply request information is sent to each EV2. Note that the supply request information includes Electricity charges may vary, for example, depending on the destination EV2.

[0020] Next, for example, if each EV2 has the intention to conduct electricity trading, and electricity trading When the market is open, each EV2, for example, receives supply request information from the management device 1. Based on this, a decision will be made on whether or not to supply (sell) surplus electricity (YES in S11). (YES in S12, S13).

[0021] Specifically, each EV2, for example, depending on whether each EV2 has stopped within Campus 4, Each piece of information included in the supply request information received from the management device 1, and the surplus power in each EV2 Information for receiving designations regarding whether or not to supply is provided inside each EV2 vehicle. The display is shown on a display device (not shown). Then, the driver for each EV2 displays, for example, The device will be designated to supply (sell) surplus power from each EV2. The system designates electricity consumers 104 who will supply surplus electricity to each EV2.

[0022] In other words, the driver of each EV2, for example in this case, the surplus power in each EV2 By considering the quantity and future usage plans for each EV2, the surplus power in each EV2 is A decision will be made regarding whether or not to supply the product.

[0023] Each EV2, for example, includes each piece of information contained in the supply request information and the surplus in each EV2. Information to accept designation regarding whether or not to supply (sell) electricity, for each EV2 It may also be displayed on a mobile device owned by the driver.

[0024] Furthermore, if the driver of each EV2 designates that they will supply surplus power, each EV 2 is, for example, information indicating a desire for the supply of surplus electricity from each EV2 (hereinafter referred to as "supply desire"). The desired information (also called the second information) is transmitted to the management device 1 (S14). For example, this information includes details about the amount of surplus power in each EV2.

[0025] In response to this, the management device 1, for example, when it receives supply request information from multiple EV2s, At least some of the EV2s that have submitted supply request information will be EV2s that supply surplus power. Select this as the supplier EV2a (hereinafter also referred to as EV2a) (S23).

[0026] Specifically, the management device 1 displays, for example, a list showing multiple EV2s that have sent supply request information. It generates an offer list (hereinafter also referred to as an offer list). Then, the management device 1, for example, - Select at least some of the EV2s listed as source EV2a. .

[0027] Subsequently, the management device 1, for example, for each of the EV2 that transmitted the supply request information, Information indicating whether or not it was selected as a supplier EV2a (hereinafter referred to as selection result information or third information) Send (also called) (S24).

[0028] Specifically, the management device 1, for example, will inform the EV2 identified as the source EV2a of the remaining It transmits information indicating that it has been selected as EV2 to supply surplus power. 1 is, for example, supplying surplus power to EV2 that was not identified as source EV2a. Send information indicating that it was not selected as EV2 to perform the task.

[0029] Next, when each EV2 receives selection result information from the management device 1, the received selection result Based on the information, it is determined whether each EV2 has been selected as the source EV2a (S15 ).

[0030] As a result, if it is determined that each EV2 was not selected as the source EV2a (S16 For NO), each EV2 repeats the processing from S12 onwards, for example.

[0031] In other words, each EV2 is, in this case, for example, the power consumer 104 determined in the processing of S13. Information regarding the supply requests for other electricity consumers 104 is transmitted to the management device 1. Then, each EV For example, step 2 continues the search for electricity consumers 104 who can supply surplus electricity to each EV2. do.

[0032] On the other hand, if it is determined that each EV2 has been selected as the source EV2a (YES in S16) Each EV2 (each supplier EV2a) is, for example, determined in the processing of S13 by the power consumer 104 The supply (discharge) of surplus power to the system is initiated (S17).

[0033] Subsequently, the management device 1, for example, will contact the power source EV2a that supplied the surplus power, S The amount of surplus electricity supplied to the electricity consumer 104 determined in process 13, and the current electricity A fee is paid in accordance with the charges (S25). Specifically, the control device 1 is, for example, a supplier E The V2a driver will make the payment to the designated recipient.

[0034] [Details of processing S23 (1)] Next, we will explain the details of the S23 process (1). Figure 4 shows the details of the S23 process ( This is an algorithm that explains 1). In the example shown in Figure 4, "Demand" is power. Consumer 104 indicates the amount of electricity they wish to be supplied, and "Power_Company_Tar "iff" refers to the current electricity rate (the electricity rate notified by electricity trading companies, etc. 103). This indicates, "EV i " indicates the i-th EV2 that submitted the supply request information, and "Offer i This indicates the amount of surplus power indicated by the supply request information transmitted from the i-th EV2. In the example shown in Figure 4, "Winner[]" was identified as the supplier EV2a. This shows a list of EV2s, and "Offer_Selection[]" indicates whether the supplier is an EV2a or This indicates the amount of surplus electricity indicated by the supply request information that was sent.

[0035] Management device 1 first sets, for example, "Demand" and "Power_Company_ Tariff and "EV2" corresponding to each EV2 i " and "Offer" corresponding to each EV2 i " Obtain (S31).

[0036] Then, the management device 1, for example, "Winner[]" and "Offer_Select Initialization is performed with "ion[]" (S32).

[0037] Next, the management device 1, for example, arranges each EV2 in descending order of the amount of surplus power. "Offer" i The order of " is rearranged (S33). Note that in this case, the management device 1 is, for example For example, the "Offer" corresponding to each EV2 i Along with the rearrangement of "E V i We will also rearrange the order of the characters.

[0038] Subsequently, the control device 1 sets "i" to 0, for example (S34). Then, the control device For example, 1 is added to the value set for "i" (S35).

[0039] Subsequently, the management device 1 determines, for example, whether "Demand" exceeds "Offer" i (S36).

[0040] If the result is that "Demand" is determined to exceed "Offer" (YES in S36), the management device 1, for example, stores "i" in "Winner[i]" and i also stores "Offer" in "Offer_Selection[i]" (S37). i

[0041] On the other hand, if it is determined that "Demand" does not exceed "Offer" (NO in S36), the management device 1, for example, stores "i" in "Winner[i]" and i also stores "Demand" in "Offer_Selection[i]" (S38).

[0042]

[0043]

[0044] After that, the management device 1 determines, for example, whether "Demand" exceeds 0 (S40).

[0044] If the result is that "Demand" is determined to exceed 0 (YES in S40), the management device 1 outputs, for example, the information stored in "Winner[]" and the information stored in "Offer_Selection[]" (S41).

[0045] ​​ On the other hand, if it is determined that "Demand" is not greater than 0 (NO in S40), management Device 1, for example, repeats the processing from S35 onwards.

[0046] In other words, if the management device 1 receives supply request information from multiple EV2s, for example, Select a supplier EV2a from a number of EV2s. Specifically, the control device 1 selects, for example, the most numerous EV2 that sent supply request information indicating surplus power is supplied by EV2a (hereinafter referred to as a specific supplier E Identify it as V2 (also known as V2).

[0047] Then, the management device 1 receives, for example, supply request information transmitted from a specific supplier EV2a. The amount of surplus electricity indicated is the amount of electricity consumers 104 (hereinafter referred to as "specific electricity consumers") who wish to receive surplus electricity. It determines whether the amount of electricity supplied is equal to or greater than the amount requested by the user (also called user 104).

[0048] As a result, the amount of surplus power indicated by the supply request information transmitted from a specific supplier EV2a is If it is determined that a specific electricity consumer 104 has more electricity than the amount requested, the management device 1 is, for example, a specific power supply from a specific power source EV2a to a specific power consumer 104. The system decides to supply the amount of electricity that consumer 104 requests.

[0049] On the other hand, the amount of surplus power indicated by the supply request information transmitted from a specific supplier EV2a is specific If the power consumer 104 determines that the amount of electricity supplied is not equal to or greater than the amount of electricity that the consumer desires, the control device 1 will For example, from a specific supplier EV2 to a specific electricity consumer 104, a specific supplier EV The system decides to supply the amount of surplus power indicated by the supply request information transmitted from 2a.

[0050] Subsequently, the management device 1, for example, provides information indicating a specific supplier EV2a and a specific supplier E Information indicating the amount of surplus electricity supplied from V2a to a specific electricity consumer 104, Send to the supplier EV2a.

[0051] Furthermore, the amount of surplus power indicated by the supply request information transmitted from a specific supplier EV2a is If it is determined that the amount of electricity supplied to a specific electricity consumer 104 has not reached the amount requested by that consumer, management Device 1, for example, receives information on the supply request from all source EV2a indicating the surplus power. The total amount reaches the amount of electricity that a specific electricity consumer 104 wishes to be supplied with, until the supplying EV The selection of 2a is repeated. Specifically, in this case, the control device 1 selects, for example, the source EV2. The decision for 'a' is made starting with EV2, which has the most surplus power.

[0052] As a result, the management device 1 will, for example, supply power to a specific power consumer 104. This makes it possible to reduce the number of supply source EV2a. Therefore, the management device 1, for example, This makes it possible to reduce the computational cost required for selecting the power source EV2a. Also, the management device 1 For example, the communication costs required to supply electricity to a specific electricity consumer 104 It becomes possible to suppress it.

[0053] Furthermore, each EV2 will, for example, specify whether or not it will supply electricity to electricity consumer 104. This makes it possible to obtain the necessary information for making decisions. Therefore, each EV2 can, for example, supply power This will enable them to make independent decisions about whether or not to do so, and to voluntarily supply electricity. This makes it possible. Therefore, the power trading system 10 will stimulate power trading. This will become possible.

[0054] [Specific example of processing in S23 (1)] Next, we will explain a specific example (1) of the S23 process. Figure 5 shows a specific example of the S23 process. This is a diagram illustrating example (1).

[0055] In the example shown in Figure 5, the amount of electricity that electricity consumer 104 wishes to be supplied is "30 (kWh)". Therefore, the amount of surplus power in EV21 is "15 (kWh)", and in EV22 The amount of surplus power is "15 (kWh)", and the amount of surplus power in EV23 is "10 (kWh)". The amount of surplus power in EV24 is "5 (kWh)". In other words, The example shown in Figure 5 is that the amount of surplus power in EV21 and the amount of surplus power in EV22 are the most... This indicates that there are many of them.

[0056] Therefore, the management device 1 first directs the EV21, which has the largest amount of surplus power, to the power source EV2a. After selecting it, EV22, which has the largest amount of surplus power, will be supplied by EV2a along with EV21. Select as follows. And in this case, the surplus power corresponding to the selected EV21 and EV22 The total amount reached "30 (kWh)", which is the amount of electricity that electricity consumer 104 wants to be supplied with. Therefore, the control device 1 terminates the selection of the supplier EV2a.

[0057] [Details of processing S23 (2)] Next, we will explain the details of the S23 process (2). Figure 6 shows the details of the S23 process ( This is the algorithm that explains (2). In the example shown in Figure 6, "Demand" is power. Consumer 104 indicated the amount of electricity they wanted supplied, and "EV i "Sent supply request information" The i-th EV2 is shown, "Offer i This indicates the supply request information from the i-th EV2. This indicates the amount of surplus power, and is called "EV_Tariff". i " is the electricity rate set by the i-th EV2 This indicates that. Also, in the example shown in Figure 6, "Winner[]" is the supplier EV2a This shows a list of EV2s identified as such, and "Offer_Selection[]" is, This indicates the amount of surplus electricity indicated by the supply request information from the EV2 identified as the supplier EV2a. Yes, they are.

[0058] In other words, the algorithm shown in Figure 6 differs from the algorithm shown in Figure 4 in that the electricity charges This is determined on the EV2 side. Therefore, if the algorithm shown in Figure 6 is followed, the management device 1 is, for example, in the processing of S21, supply request information that does not include electricity charges (i.e., The information requesting the transmission of electricity charges is sent to each EV2. Then, each EV2, in this case For example, whether or not to supply surplus electricity based on supply request information that does not include electricity charges. A decision is made regarding this. Furthermore, each EV2, in this case, for example, in the processing of S14 Each EV2 then transmits the requested electricity charges and other supply information to the management device 1. In the following, the electricity charges determined by the EV2 will also be referred to as the sales charges.

[0059] The management device 1 first sets, for example, "Demand" and "EV2" corresponding to each EV2. i "and "Offer" corresponding to each EV2 i " and "EV_Tariff" corresponding to each EV2 i "and Obtain (S51).

[0060] Then, the management device 1, for example, "Winner[]" and "Offer_Select Initialize with "ion[]" (S52).

[0061] Next, the management device 1 will, for example, sort each EV2 in order of lowest electricity cost. "EV_Tariff" i The order of " is rearranged (S53). Note that in this case, the management device 1 For example, the "Offer" corresponding to each EV2 i Depending on the amount of surplus power indicated by ", each EV2 The corresponding "EV_Tariff" i Further rearrangement is performed. Specifically, control device 1 In this case, for example, "Offer i In order of the amount of surplus power indicated by "[ ]", each EV2 is given the following: Corresponding "EV_Tariff" i Further rearrangement of ". Also, the management device 1 in this place For example, the "EV_Tariff" corresponding to each EV2. i As a result of rearranging the order of each EV2 "EV" which corresponds to i " and "Offer" corresponding to each EV2 i Regarding rearranging the order of the characters, cormorant.

[0062] Subsequently, the control device 1 sets "i" to 0, for example (S54). Then, the control device For example, 1 is added to the value set for "i" (S55).

[0063] Next, the management device 1, for example, if "Demand" is "Offer i It surpasses " A determination is made as to whether or not this is the case (S56).

[0064] As a result, "Demand" becomes "Offer i If it is determined that it exceeds " (S5 6) YES), Management device 1, for example, stores "i" in "Winner[i]" Moni, "Offer i Store "" in "Offer_Selection[i]" (S5 7).

[0065] On the other hand, "Demand" is "Offer i If it is determined that it does not exceed " (S56 NO), the management device 1 stores, for example, "i" in "Winner[i]", Store "Demand" in "Offer_Selection[i]" (S58).

[0066] Then, after processing S57 or S58, the management device 1, for example, "Demand" Then, the value obtained by subtracting "Offer_Selection[i]" is stored in "Demand". Ru (S59).

[0067] Subsequently, the management device 1 checks, for example, whether "Demand" is greater than 0. The determination is made (S60).

[0068] As a result, if it is determined that "Demand" is greater than 0 (YES in S60), The management device 1, for example, stores information in "Winner[]" and "Offer_Se The information stored in "lection[]" is output (S61).

[0069] On the other hand, if it is determined that "Demand" is not greater than 0 (NO in S60), management Device 1, for example, repeats the processing from S55 onwards.

[0070] In other words, if the management device 1 receives supply request information from multiple EV2s, for example, Select a supplier EV2a from a number of EV2s. Specifically, the management device 1 selects, for example, the cheapest one. The EV2 that sent supply request information indicating electricity rates is identified as a specific supplier EV2a.

[0071] Then, the management device 1 receives, for example, supply request information transmitted from a specific supplier EV2a. The electricity rates shown apply to electricity from a specific supplier EV2a to a specific electricity consumer 104. Identify it as the electricity charge.

[0072] Subsequently, the management device 1 receives, for example, supply request information transmitted from a specific supplier EV2a. Whether the amount of surplus electricity shown is greater than or equal to the amount of electricity that a specific electricity consumer 104 wishes to be supplied with. Determine whether it is true.

[0073] As a result, the amount of surplus power indicated by the supply request information transmitted from a specific supplier EV2a is If it is determined that a specific electricity consumer 104 has more electricity than the amount requested, the management device 1 is, for example, a specific power supply from a specific power source EV2a to a specific power consumer 104. The system decides to supply the amount of electricity that consumer 104 requests.

[0074] On the other hand, the amount of surplus power indicated by the supply request information transmitted from a specific supplier EV2a is specific If the power consumer 104 determines that the amount of electricity supplied is not equal to or greater than the amount of electricity that the consumer desires, the control device 1 will From a specific supplier EV2 to a specific electricity consumer 104, from a specific supplier EV2a We will decide to supply the amount of surplus electricity indicated by the submitted supply request information.

[0075] Subsequently, the management device 1, for example, provides information indicating a specific supplier EV2a and a specific supplier E Information indicating the amount of surplus electricity supplied from V2a to a specific electricity consumer 104, and specific The electricity rates applied to electricity from supplier EV2a to a specific electricity consumer 104, Send to the supplier EV2a.

[0076] Furthermore, the amount of surplus power indicated by the supply request information transmitted from a specific supplier EV2a is If it is determined that the amount of electricity supplied to a specific electricity consumer 104 has not reached the amount requested by that consumer, management Device 1, for example, receives information on the supply request from all source EV2a indicating the surplus power. The total amount reaches the amount of electricity that a specific electricity consumer 104 wishes to be supplied with, until the supplying EV The selection of 2a is repeated. Specifically, in this case, the control device 1 selects, for example, the source EV2. The decision for 'a' is made in order, starting with EV2, which sent the cheapest electricity rate.

[0077] As a result, the management device 1 receives power from, for example, a specific power consumer 104. This makes it possible to reduce the financial costs required for this.

[0078] Furthermore, each EV2 will, for example, specify whether or not it will supply electricity to electricity consumer 104. It becomes possible to generate the necessary decision-making information for each EV2, for example, the power supply This will allow for independent decision-making regarding whether or not to supply electricity, enabling voluntary power supply. This becomes possible. Therefore, the electricity trading system 10 will stimulate electricity trading. This becomes possible.

[0079] [Specific example of processing in S23 (2)] Next, we will explain a specific example (2) of the S23 process. Figure 7 shows a specific example of the S23 process. This is a diagram illustrating example (2).

[0080] In the example shown in Figure 7, the amount of electricity that electricity consumer 104 wishes to be supplied is "30 (kWh)". Therefore, the amount of surplus power in EV25 is "15 (kWh)", and in EV26 The amount of surplus power is "15 (kWh)", and the amount of surplus power in EV27 is "10 (kWh)". The amount of surplus power in EV28 is "5 (kWh)". Also, see Figure 7. In the example shown, the electricity rate determined on the EV25 side is "20 (yen / kWh)". The electricity rate determined on the EV26 side was "30 (yen / kWh)", and the EV27 side The electricity rate determined in this case was "40 (yen / kWh)", and was determined by EV28. The electricity rate is "20 (yen / kWh)". In other words, the example shown in Figure 7 is EV25 The electricity rates corresponding to and the electricity rates corresponding to EV28 are the cheapest, and the electricity rates corresponding to EV26 are the cheapest. This indicates that the airfare is the next cheapest.

[0081] Therefore, the control device 1 initially sets EV25, which has the lowest electricity rate, as the power source EV2a. After making your selection, choose EV28, which has the lowest electricity rates, as the supplier, along with EV25. Then, we select EV26, which has the next lowest electricity rates, as the supplier, EV2a. In this case, the total amount of surplus power corresponding to the selected EV25, EV26, and EV28 is the power In order to reach the amount of electricity that consumer 104 desires to be supplied, "30 (kWh)", management Device 1 finishes selecting the source EV2a.

[0082] [Details of processing S23 (3)] Next, we will explain the details of the S23 process (3).

[0083] For example, when the management device 1 receives power supply request information from multiple power consumers 104 In total, the amount of electricity to be processed is selected from the amount of electricity that multiple electricity consumers 104 wish to be supplied with. Specifically, the management device 1 will, for example, receive the power that multiple power consumers 104 wish to be supplied with. It is acceptable to identify the amount of electricity to be processed as the largest amount of electricity among the various quantities.

[0084] Then, the management device 1, for example, determines the amount of power to be processed, which each power source EV2a can supply. Determine whether the amount is greater than or equal to the total amount of surplus electricity.

[0085] As a result, the amount of electricity to be processed exceeds the total amount of surplus electricity that each EV2a supplier can supply. If it determines that this is the case, the control device 1 will, for example, determine a specific amount of electricity corresponding to the amount of electricity to be processed. To supply the total amount of surplus electricity that each power source EV2a can supply to power consumers 104. To decide.

[0086] On the other hand, the amount of electricity to be processed is not greater than the total amount of surplus electricity that each EV2a supplier can supply. If it determines that, the control device 1 will, for example, determine a specific power consumption corresponding to the amount of power to be processed. It was decided that each supplier EV2a would supply the total amount of surplus electricity it could provide to consumer 104. To determine.

[0087] Subsequently, the management device 1, for example, displays information indicating a specific power consumer 104 and each source EV. Information from 2a indicating the total amount of electricity to be supplied to a specific electricity consumer 104, Send to consumer 104.

[0088] [Example screen for electricity trading] Next, we will explain examples of screens (screen transition examples) in electricity trading. Figures 8 to 11 are This is a diagram illustrating an example screen for electricity trading.

[0089] First, when the process described in Figure 4 is executed, the EV2's display device (not shown) will display... We will now explain an example of the screen that will be displayed. Figure 8 shows the EV when the process described in Figure 4 is executed. We will now explain an example of the screen output to the display device 2.

[0090] Each EV2, as shown in Figure 8, for example, when it receives supply request information from the management device 1... In addition, the contents of the received supply request information are displayed on the display device. Then, each EV2, for example, When the driver of each EV2 inputs the amount of surplus power, the driver of each EV2 inputs The amount of surplus power is displayed on the display device.

[0091] Specifically, each EV2, in this case, for example, is notified by a power trading entity 103 such as a power company. The "Power Company Tariff," which indicates the electricity rate, is "28.13 (p "Peak" is the amount of electricity that electricity consumer 104 wishes to be supplied with (104 kWh). "Demand" is "35 (kWh)", and "Off" indicates the amount of surplus power for each EV2. "er" is "10 (kWh)", and "States", which indicates the processing status, is "Prepar Display screen IM11, which indicates that it is "ed".

[0092] And, for example, each EV2 driver will send supply request information to the management device 1. If powered, each EV2 manages the supply preference information entered by the driver of each EV2. Send to device 1.

[0093] Specifically, for example, each EV2 driver is "Proceed" in screen IM11 When pressed, each EV2 manages the supply preference information entered by the driver of each EV2. The data is sent to the control device 1, and screen I is updated with "Status" changed to "Waiting". Display M12.

[0094] Subsequently, for example, selection result information indicating that each EV2 was identified as a source EV2a. When a signal is received from the management device 1, each EV2 is identified as the source EV2a. Information indicating this is done will be displayed on the display device.

[0095] Specifically, each EV2, in this case for example, each EV2 is identified as a source EV2a. Upon receiving selection result information indicating that the selection was made, the "Status" will be changed to "Selected". Display the updated screen IM13.

[0096] Next, here is an example of the screen displayed on the EV2's display device when the process described in Figure 6 is executed. Let's explain this further. Figure 9 shows the EV2's display device when the process described in Figure 6 is executed. This section will explain an example of the output screen.

[0097] Each EV2, as shown in Figure 9, for example, when it receives supply request information from the management device 1, In addition, the contents of the received supply request information are displayed on the display device. Then, each EV2, for example, When the driver of each EV2 inputs the amount of surplus power and the electricity cost, the driver of each EV2 The bar displays the amount of surplus power entered and the electricity cost on the display device.

[0098] Specifically, each EV2, in this case, for example, is notified by a power trading entity 103 such as a power company. The "Power Company Tariff," which indicates the electricity rate, is "28.13 (p "Peak" is the amount of electricity that electricity consumer 104 wishes to be supplied with (104 kWh). "Demand" is "35 (kWh)", and "Off" indicates the amount of surplus power for each EV2. "er" is "10 (kWh)", and "EV" indicates the electricity rate set for each EV2. The "Tariff" is "27.3 (per kWh)", and the "Status" indicates the processing status. Screen IM21 is displayed, indicating that "es" is "Prepared".

[0099] And, for example, each EV2 driver will send supply request information to the management device 1. If powered, each EV2 manages the supply preference information entered by the driver of each EV2. Send to device 1.

[0100] Specifically, for example, each EV2 driver is "Proceed" on screen IM21 When pressed, each EV2 manages the supply preference information entered by the driver of each EV2. The data is sent to the control device 1, and screen I is updated with "Status" changed to "Waiting". Display M22.

[0101] Subsequently, for example, selection result information indicating that each EV2 was identified as a source EV2a. When a signal is received from the management device 1, each EV2 is identified as the source EV2a. Information indicating this is done will be displayed on the display device.

[0102] Specifically, each EV2, in this case for example, each EV2 is identified as a source EV2a. Upon receiving selection result information indicating that the selection was made, the "Status" will be changed to "Selected". Display the updated screen IM23.

[0103] Next, when the process described in Figure 4 is executed, the display device (not shown) of the management device 1 will display... Let's explain the example screen shown. Figure 10 shows what happens when the process described in Figure 4 is executed. An example of the screen output to the display device of management device 1 will be explained.

[0104] The management device 1 first displays, for example, the contents of the supply request information sent to each EV2. Display it on the device.

[0105] Specifically, as shown in Figure 10, the management device 1 is, for example, a power trading company 10 The "Power Company Tariff" that shows the electricity charges notified by 3 is "2 This is "8.13 (per kWh)," indicating the amount of electricity that electricity consumers 104 wish to be supplied with. Screen IM31 shows that "Peak Demand" is "35 (kWh)". To show.

[0106] For example, if the management device 1 receives supply request information from multiple EV2s, the management device 1 will receive The contents of each of the requested supply information items are displayed on the display device.

[0107] Specifically, the management device 1, for example, will turn off EV2, where "EV No." is "1". "er" and "Status" are "10(kWh)" and "Unselected" respectively. For EV2 with "EV No." "2", the "Offer" and "Status" are "5". (kWh) and "Unselected", and the "EV No." is "3" V2's "Offer" and "Status" are "15 (kWh)" and "Unselected The EV2's "Offer" and "Sta" are both "ted" and "EV No." are "4". Screen IM showing that "tus" is "10(kWh)" and "Unselected" Display 32.

[0108] Subsequently, for example, once the identification of the supplier EV2a is complete, the management device 1 will determine the identified supply The display device shows information indicating that the original vehicle was an EV2a.

[0109] Specifically, the management device 1, for example, if "EV No." is "1", if "EV No." is " For EV2 where "2" and "EV No." are "4", set "Status" to "Selected Display screen IM33, which has been updated to "d".

[0110] Next, the screen displayed on the display device of the management device 1 when the process described in Figure 6 is executed. Let's explain with an example. Figure 11 shows the management device 1 when the process described in Figure 6 is executed. This section will explain examples of screens displayed on a display device.

[0111] The management device 1 first displays, for example, the contents of the supply request information sent to each EV2. Display it on the device.

[0112] Specifically, as shown in Figure 11, the management device 1 is, for example, a power trading company 10 The "Power Company Tariff" that shows the electricity charges notified by 3 is "2 This is "8.13 (per kWh)," indicating the amount of electricity that electricity consumers 104 wish to be supplied with. Screen IM41 shows that "Peak Demand" is "35 (kWh)". To show.

[0113] For example, if the management device 1 receives supply request information from multiple EV2s, the management device 1 will receive The contents of each of the requested supply information items are displayed on the display device.

[0114] Specifically, the management device 1, for example, will turn off EV2, where "EV No." is "1". "er", "EV Tariff", and "Status" are "10 (kWh)", "27. 3 (per kWh) and "Unselected", and "EV No." is "2 The EV2's "Offer," "EV Tariff," and "Status" are all "5 The options are "(kWh)", "25.8 (per kWh)", and "Unselected". The "Offer," "EV Tariff," and "EV No." of EV2 with "3" "Status" is "15 (kWh)", "28.2 (per kWh)", and "Uns "elected" and "EV No." is "4" for EV2's "Offer", EV Tariff and Status are "10 (kWh)" and "28.9 (per Screen IM42 is displayed, showing "kWh)" and "Unselected".

[0115] Subsequently, for example, once the identification of the supplier EV2a is complete, the management device 1 will determine the identified supply The display device shows information indicating that the original vehicle was an EV2a.

[0116] Specifically, management device 1, for example, sets all "Status" to "Selected". Display the updated screen IM43. [Explanation of Symbols]

[0117] 1: Management device 2:EV 101:Electricity supplier 102: Power grid 103: Electricity traders 104:Electricity consumer

Claims

1. A power trading system including a management device and multiple power trading devices, The management device, when the electricity demand situation meets predetermined conditions, transmits first information indicating a request to transmit electricity sales prices to each of the multiple electricity trading devices. Each of the aforementioned multiple power trading devices is: Upon receiving the above-mentioned first information, a determination is made based on the available power supply at each power trading device as to whether or not to supply the available power supply to the power recipient. If it is determined that the available power will be supplied, second information including the available power and the sales price of the available power is transmitted to the management device. The aforementioned control device is Until the total amount of available power as indicated by the second information received from the plurality of power trading devices reaches the amount of power requested, a specific power trading device to request the supply of the available power is identified from the plurality of power trading devices in order of the lowest selling price indicated by the second information. A third piece of information indicating a request for the supply of the available electricity is transmitted to each of the identified specific power trading devices. A power trading system characterized by the following features.

2. In claim 1, When the management device receives information indicating the requested amount from the power supply destination, it transmits the first information to each of the plurality of power trading devices. A power trading system characterized by the following features.

3. In claim 1, Each of the aforementioned specific power trading devices, upon receiving the third information, supplies the available power to the recipient. A power trading system characterized by the following features.

4. A method for trading electricity in an electricity trading system that includes a management device and multiple electricity trading devices, The management device, when the electricity demand situation meets predetermined conditions, transmits first information indicating a request to transmit electricity sales prices to each of the multiple electricity trading devices. Each of the aforementioned multiple power trading devices is: Upon receiving the above-mentioned first information, a determination is made based on the available power supply at each power trading device as to whether or not to supply the available power supply to the power recipient. If it is determined that the available power will be supplied, second information including the available power and the sales price of the available power is transmitted to the management device. The aforementioned control device is Until the total amount of available power as indicated by the second information received from the plurality of power trading devices reaches the amount of power requested, a specific power trading device to request the supply of the available power is identified from the plurality of power trading devices in order of the lowest selling price indicated by the second information. A third piece of information indicating a request for the supply of the available electricity is transmitted to each of the identified specific power trading devices. A method for trading electricity characterized by the following features.

Images