JP7118266B2 - Power trading coordination device, power trading coordination system, and power trading coordination method - Google Patents

Description

TECHNICAL FIELD The present invention relates to an electric power transaction adjustment device, an electric power transaction adjustment system, and an electric power transaction adjustment method for adjusting a planned value of electric power traded under a bilateral contract.

Electric power companies, such as electric power retailers and power generators, need to submit a plan regarding the supply and demand of electric power to the Organization for Cross-regional Coordination of Electric Power Operations (hereinafter referred to as OCCTO). Based on these plans, the OCCTO manages the free capacity of interconnection lines that connect areas under jurisdiction control by each electric power company. There are two types of plans to be submitted to OCCTO: the next day's plan and the current day's plan. The deadline for submission of the next day's plan is 12:00 on the day before the day when the actual demand and supply occurs, and the deadline for submission of the plan for the current day is one hour before the start time of the time zone in units of 30 minutes. The deadline for submitting the plan for the day is called gate close.

The power consumed by consumers may fluctuate from the next day's plan. Patent Literature 1 discloses an electric power retail system that adjusts a supply and demand plan so as to cope with unexpected fluctuations in demand. The power retail system described in Patent Literature 1 corrects the power generation plan created the previous day and notifies the power generation company of the plan according to the amount of power demanded and the amount of power generated on the day.

JP-A-2002-123578

As a contract related to electricity trading, there is a bilateral contract in which an electric power company concludes a one-to-one contract between parties. In a bilateral contract, the parties coordinate the planned amount of power to be exchanged. For example, since it is necessary for a business operator that has concluded a bilateral contract to submit a plan for the next day to the OCCTO, by 12:00, the plan values for the next day are once decided upon agreement between the parties. A business operator who has entered into a bilateral contract has a problem that when changing the plan values that have once been fixed, it is necessary to make manual adjustments such as telephone calls between the parties each time, which is time-consuming.

In the technology described in Patent Document 1, an electric power retailer who owns an electric power retail system unilaterally modifies the power generation plan and notifies it to the power generation company. In the technology described in Patent Document 1, Inability to make adjustments to the planned values agreed between the parties to the bilateral contract. For example, even if an electric power retailer tries to change the planned value in the next day's plan, the power producer may not allow the change. In addition, with the technology described in Patent Literature 1, the power generation company cannot change the planned value. In this way, the technology described in Patent Document 1 has not been modified so that both parties who have entered into a bilateral contract can accept the technology described in Patent Document 1. It cannot be applied to the adjustment of the planned value after the next day's plan is submitted by the operator who has

SUMMARY OF THE INVENTION The present invention has been made in view of the above, and provides an electric power transaction coordinating apparatus capable of adjusting the planned value of supply and demand of a business operator who has entered into a bilateral contract with less effort. The purpose is to

In order to solve the above-described problems and achieve the object, the power transaction coordinator according to the present invention supplies power based on each bilateral contract for power supply concluded between two business operators. a storage unit that stores adjustment condition information indicating adjustment conditions for adjusting the planned value of the electric energy from the tentative fixed value agreed between the two business operators. Also, the power trading coordinator receives a plan adjustment request indicating that one of the two business operators requests adjustment for changing the planned value from the tentative fixed value, and receives the received plan adjustment request. and the adjustment condition information, a plan adjustment unit that performs an adjustment process for determining a relative contract to be adjusted for the planned value and an adjustment amount that is an amount by which the planned value is changed. The plan adjustment request includes a desired adjustment amount indicating the amount of change in the plan value desired by one of the operators.

Advantageous Effects of Invention The power transaction coordinating apparatus according to the present invention has the effect of being able to reduce time and effort and adjust the planned value of supply and demand of a business operator who has concluded a bilateral contract.

A diagram showing a configuration example of the power trading coordination system according to the first embodiment A diagram showing a configuration example of a business operator device according to the first embodiment A diagram showing a configuration example of a computer system that realizes the bilateral contract adjustment device of the first embodiment. A diagram showing the relationship between each process performed in the power trading coordination system of Embodiment 1 and the period 4 is a chart diagram showing operations up to provisional determination of planned values for the next day in the power trading coordination system of Embodiment 1. FIG. A diagram showing an example of basic contract information stored in the storage unit of the bilateral contract adjustment device of Embodiment 1 A diagram showing an example of plan value information stored in the storage unit of the bilateral contract adjustment device of Embodiment 1 A diagram showing an example of adjustment condition information stored in the storage unit of the bilateral contract adjustment apparatus of Embodiment 1 A diagram showing an example of adjustment amount information stored in the storage unit of the bilateral contract adjustment apparatus of Embodiment 1 Flowchart showing an example of a planned value adjustment processing procedure by the bilateral contract adjustment device of Embodiment 1 A diagram showing a configuration example of a plan adjustment request according to the first embodiment A diagram showing an example of the planned value adjustment process of the first embodiment when a plan change request of the first specific example is received. A diagram showing an example of the planned value adjustment process of the first embodiment when a plan change request of the second specific example is received FIG. 4 is a diagram for explaining the change operation of the variable amount performed by the transaction monitoring unit according to the first embodiment; A diagram showing the state after the adjustment of the planned values shown in FIG. 14 A diagram showing an example of change of the variable amount by the transaction monitoring unit according to the first embodiment. A diagram showing a configuration example of an electricity trading coordination system according to a second embodiment A diagram showing a configuration example of a provider device according to the second embodiment

EMBODIMENT OF THE INVENTION Below, the power market coordination apparatus, power market coordination system, and power market coordination method concerning embodiment of this invention are demonstrated in detail based on drawing. In addition, this invention is not limited by this embodiment.

Embodiment 1.
FIG. 1 is a diagram showing a configuration example of an electricity trading coordination system according to Embodiment 1 of the present invention. The power transaction coordination system of the present embodiment includes a bilateral contract coordination device 1, which is the power trade coordination device according to the present invention, and business operator devices 2-1 to 2-3 connected to the bilateral contract coordination device 1. . The operator devices 2-1 to 2-3 are devices managed by different electric power operators (hereinafter also referred to as operators). The operator's devices 2-1 to 2-3 have the same configuration, and are hereinafter referred to as operator's device 2 when the operator's devices 2-1 to 2-3 are not distinguished individually. Although FIG. 1 shows three operator devices 2 connected to the bilateral contract adjustment device 1, the number of the operator devices 2 connected to the bilateral contract adjustment device 1 is shown in the example shown in FIG. Not limited.

The bilateral contract adjusting device 1 adjusts the planned value of the amount of power traded by the bilateral contract (hereinafter also referred to as the bilateral contract planned value). A bilateral contract in the present embodiment is a contract concerning power supply concluded between two business operators. A bilateral contract is a contract concluded on a one-to-one basis, and the contents of the contract are agreed between the parties, that is, between the business operators. When participating in the power transaction coordination system of the present embodiment, the business operator connects the business operator device 2 to the bilateral contract adjustment device 1, and transfers the planned value to the bilateral contract adjustment device 1 via the business operator device 2. provide the information necessary for the adjustment of As a result, the business operator can receive the service of adjusting the planned value of the bilateral contract. The bilateral contract adjustment device 1 may be a device jointly managed by a plurality of electric power companies, may be a device managed by a third party other than the electric power companies, or may be a device managed by a third party other than the electric power companies. It may be a device managed by a person. The process of adjusting the planned value of the bilateral contract will be described later.

The operator's device 2-1 is connected to the supply and demand management system 3-1, and the operator's device 2-2 is connected to the supply and demand management system 3-2. The supply and demand management system 3-1 is managed by the operator who manages the operator device 2-1, and the demand and supply management system 3-2 is managed by the operator who manages the operator device 2-2. The demand-supply management systems 3-1 and 3-2 manage at least one of the amount of supply and demand, for example, the amount of electricity demanded and the amount of electricity generated, by facilities managed by the corresponding business operator. The supply and demand management systems 3-1 and 3-2 may have different configurations and functions. For example, if the business operator that manages the supply and demand management system 3-1 is an electric power retailer, the supply and demand management system 3-1 manages the demand amount of consumers who have contracts with the business operator. If the business operator managing the supply and demand management system 3-1 is an electric power retailer and this electric power retailer has a generator, the supply and demand management system 3-1 further includes Manage power generation. Further, when the business operator managing the supply and demand management system 3-2 is a power generation business operator, the supply and demand management system 3-2 manages the amount of power generated by the generator.

The supply and demand management systems 3-1 and 3-2 generate supply and demand plans based on the managed supply and demand amounts and transmit them to the cross-regional organization system 4. FIG. The cross-regional organization system 4 is a system managed by the cross-regional organization, receives supply and demand plans submitted by business operators, and manages the demand and supply plans of each business operator. Specifically, the supply and demand plan submitted by the business operator to the OCCTO includes the next-day plan, which indicates the plan for the next day, and the current-day plan, which indicates the plan for the current day. In these plans, planned values of supply and demand for each time period are shown with 30 minutes as one frame. The deadline for submission of the next day's plan is 12:00 on the day before the day when the actual demand and supply occurs, and the deadline for submission of the plan for the current day is one hour before the start time of the time zone in units of 30 minutes. The next day's plan shows planned values for one day of the next day, that is, for 48 frames. In addition, these submission deadlines are shown as an example of the values stipulated in Japan at present, and the submission deadlines for each plan are not limited to this example. , the power trading coordination system of the present embodiment can perform similar processing using the changed deadline.

Also, in this embodiment, an example in which the OCCTO manages the plans of each business operator will be explained, but instead of the OCCTO, other organizations, countries, business operators, etc. may manage the plans of each business operator. good. In this case, instead of the cross-regional organization system 4, a plan management system for managing the plans of each operator is used. Also, here, an example in which the power trading coordination system is operated in Japan will be described, but the power trading coordination system of the present embodiment may be operated in a country other than Japan. When the power trading coordination system of the present embodiment is operated in another country, instead of the cross-regional organization system 4, a management system for managing business operators' plans is used in each country in the same manner as the cross-regional organization. Examples of organizations similar to regional organizations include PJM (Pennsylvania-New Jersey-Maryland) in the United States, NGESO (National Grid Electricity System Operator) in the United Kingdom, and POSOCO (POwer System Operation COrporation Limited) in India. Also, as for the deadline for submission of each plan, the deadline determined by each management system may be used.

In the example shown in FIG. 1, the operator devices 2-1 and 2-2 are connected to the supply and demand management systems 3-1 and 3-2, respectively, and the operator device 2-3 is not connected to the supply and demand management system. In this way, the bilateral contract adjustment device 1 of the present embodiment can be used not only for business operators having a supply and demand management system, but also for business operators without a supply and demand management system to increase the planned value of the bilateral contract. Coordination services can be provided. Hereinafter, the supply and demand management systems 3-1 and 3-2 will be referred to as the supply and demand management system 3 when they are indicated without distinction. The number of operator devices 2 connected to the supply and demand management system 3 and the number of operator devices 2 not connected to the supply and demand management system 3 are not limited to the example shown in FIG.

Business operators participating in the power trading coordination system of the present embodiment conclude bilateral contracts with other business operators, as described above. A business operator who concludes a bilateral contract must submit plans for the next day and the same day to the OCCTO, as well as agree on planned values for each plan with the business operator of the contract partner. Therefore, even if the business operator wants to change the planned value due to changes in demand or power generation from the previous day's forecast, he or she cannot change it freely. Conventionally, for example, a business operator who has concluded a bilateral contract adjusts the planned value in the following procedure. First, by 12:00 noon, both operators who have concluded a bilateral contract agreed on the planned values for the next day, and each of them reflected the agreed planned values to the OCCTO. Submit a plan for the next day. After that, if there is a need to change the planned values, the operator will manually adjust the planned values by telephone or other means between the parties each time, and send the plan for the day that reflects the adjusted planned values to the OCCTO. have submitted. Thus, conventionally, it took time and effort to change the agreed planned values. Manual adjustments are troublesome not only for the business operator requesting the change, but also for the contracting business operator. In particular, operators who have entered into bilateral contracts with multiple operators will have to make the above adjustments for each contract, making it difficult to flexibly change planned values according to the situation on the day.

In the present embodiment, conditions for adjustment are registered in advance in the mutual contract adjustment device 1 for each mutual contract, and the mutual contract adjustment device 1, based on these adjustment conditions, plans after submitting the plan for the next day Automatically adjust the value. As a result, it is possible to reduce the time and effort and adjust the planned value of the supply and demand amount of the business operator who has concluded the bilateral contract.

Next, configuration examples of the bilateral contract adjustment device 1 and the business operator device 2 will be described. As shown in FIG. 1, the bilateral contract adjustment device 1 includes a communication unit 11, a planned value registration unit 12, an adjustment condition registration unit 13, a storage unit 14, a check result reflection unit 15, a plan adjustment unit 16, a transaction monitoring unit 17, A result output unit 18 and a wide area device related unit 19 are provided.

The communication unit 11 communicates with other devices such as the provider device 2 . When the planned value registration unit 12 receives the planned value information, which is the information indicating the planned value, from the business operator device 2 via the communication unit 11, the planned value registration unit 12 stores the received planned value information in the storage unit 14 to obtain the planned value. to register. When adjustment condition information, which is information indicating adjustment conditions for adjustment of planned values, is received from the operator device 2 via the communication unit 11, the adjustment conditions are registered by storing the received adjustment condition information in the storage unit 14. do.

The storage unit 14 stores contract basic information, planned value information, adjustment condition information, and adjustment amount information. The basic contract information is information related to a contract for each bilateral contract, and the adjustment amount information is information used for adjustment of planned values in the present embodiment. Details of the basic contract information, the planned value information, the adjustment condition information, and the adjustment amount information will be described later.

The check result reflecting unit 15 , upon receiving the check result from the operator device 2 of the plan checker via the communication unit 11 , reflects the check result in the plan value information of the storage unit 14 . The plan adjustment unit 16 receives the plan adjustment request via the communication unit 11, and based on the plan adjustment request and the adjustment condition information, makes an adjustment that is an amount to change the bilateral contract to which the planned value is to be adjusted and the planned value. A reconciliation process is performed to determine the amount and The plan adjustment request is a request indicating that one of the two companies that are parties to the bilateral contract requests an adjustment to change the planned value from the tentative fixed value described later. will be described later. The transaction monitoring unit 17 changes the changeable amount of the plan value of the corresponding business operator in order to prevent the plan adjustment unit 16 from looping the adjustment of the plan value. The variable amount will be described later. Details of operations of the check result reflecting unit 15, the plan adjusting unit 16, and the transaction monitoring unit 17 will be described later.

The result output unit 18 outputs the result of adjustment by the plan adjustment unit 16. FIG. A method of outputting the result of adjustment by the result output unit 18 may be a method of transmitting the result of adjustment to the provider device 2 or a method of displaying the result of adjustment on the screen. In the former case, the operator device 2 can notify the operator of the adjustment result by displaying the adjustment result on the screen.

The wide-area aircraft related section 19 reflects the result of the adjustment by the plan adjustment section 16 in the plan value information, and transmits the plan value information reflecting the adjustment result via the communication section 11 when the plan value is changed by the adjustment. It is transmitted to the supply and demand management system 3 of the business operator. As a result, the operator device 2 can reflect the adjusted plan value in the plan for the day, and transmit the plan for the day reflecting the adjustment to the cross-regional organization system 4 . When the business operator's device 2 is connected to the supply and demand management system 3 , the supply and demand management system 3 transmits the plan for the day to the cross-regional organization system 4 . In this case, the operator device 2 transmits the result of the next day reflecting the adjusted plan value to the cross-regional agency system 4 via the supply and demand management system 3 .

Here, the plan registrant and the plan checker in the bilateral contract will be explained. In a bilateral contract, one of the two companies that have concluded the bilateral contract is the plan registrant, and the other is the plan checker. The plan registrant is a company that registers the next day's planned values submitted as the next day's plan, and the plan checker is a company that checks the registered planned values. In the present embodiment, plan values are registered by being transmitted from business operator apparatus 2 to bilateral contract adjustment apparatus 1 . A plan checker checks the registered plan values, and if there is a problem with the registered plan values, corrects the plan values after coordinating with the plan registrant. Also, if there is no problem with the registered plan values, the plan checker approves the plan values without correcting them. The plan checker uses, for example, the operator's device 2 to transmit the amount of correction of the registered plan value to the bilateral contract adjustment device 1 as a check result. If the registered plan value is approved, the correction amount becomes zero. When the check result reflection unit 15 of the bilateral contract adjustment device 1 receives the check result from the business operator device 2 of the check planner via the communication unit 11, the check result is transferred to the corresponding plan registered in the storage unit 14. Reflected in value information. Note that the check result notification method is not limited to this example.

FIG. 2 is a diagram showing a configuration example of the business operator apparatus 2 of this embodiment. The provider device 2 includes a communication section 21 , a plan creating section 22 , a plan checking section 23 , an adjustment condition management section 24 , an adjustment request generation section 25 and a display section 26 . The communication unit 21 communicates with other devices including the bilateral contract adjustment device 1 . The plan creating unit 22 creates planned values of supply and demand for every 30 minutes for the next day, and transmits each planned value for every 30 minutes to the bilateral contract adjusting device 1 via the communication unit 21 as planned value information. When the provider device 2 is connected to the supply and demand management system 3, the plan creation unit 22 acquires the next day's plan from the supply and demand management system 3, and based on the acquired next day plan, supplies and demand for every 30 minutes of the next day. A planned value for the amount may be created. The plan check unit 23 acquires plan value information indicating the plan value of the other party from the bilateral contract adjustment device 1 or from the business operator device 2 of the other party to the bilateral contract via the communication unit 21, Check the planned value of the counterparty operator. The processing of the plan creation unit 22 is performed when the business operator managing the business device 2 including the plan creation unit 22 is the plan creator, and the processing of the plan check unit 23 is performed when the business operator including the plan check unit 23 This is done when the operator who manages the device 2 is the plan checker.

The adjustment condition management unit 24 determines adjustment conditions when the business operator managing the business operator device 2 equipped with the plan check unit 23 is the fluctuation absorber, and transmits the determined adjustment conditions to the bilateral contract adjustment device 1 as the communication unit. 11. Variation absorbers and adjustment conditions will be described later. The adjustment request generation unit 25 creates a plan adjustment request for requesting a change in the plan value when the plan value is to be changed after the next day's plan submission deadline, and sends it to the bilateral contract adjustment device 1 via the communication unit 21. Send. Details of the plan adjustment request will be described later. The display unit 26 displays the planned value information created by the plan creating unit 22, the planned value information registered by the other party of the contract, the adjustment result received from the bilateral contract adjustment device 1, and the like.

In FIG. 2, an example in which the business operator device 2 includes the plan checking unit 23 for checking the planned values has been described, but the bilateral contract adjustment device 1 may include a plan checking unit for checking the planned values. good. In this case, for example, each business operator logs into the bilateral contract adjustment device 1 using the business operator device 2 to access and instruct the execution of the plan check, so that the bilateral contract adjustment device 1 Executes the planned value information registered by In this case, the planned value information stored in the bilateral contract adjusting device 1 is configured so that only the planned value information corresponding to each bilateral contract among the bilateral contract among the bilateral contract can be browsed and edited. be done.

In the above example, one of the companies that has concluded a bilateral contract is the plan registrant and the other is the plan checker. The method is not limited to this example as long as the planned value is agreed upon.

Next, hardware of each device constituting the power trading coordination system of the present embodiment will be described. In the bilateral contract adjustment device 1 of the present embodiment, the computer system executes the power transaction adjustment program, which is a program describing the processing in the bilateral contract adjustment device 1, on the computer system. function as FIG. 3 is a diagram showing a configuration example of a computer system that realizes the bilateral contract adjusting apparatus 1 of the present embodiment. As shown in FIG. 3, this computer system comprises a control section 101, an input section 102, a storage section 103, a display section 104, a communication section 105 and an output section 106, which are connected via a system bus 107. there is

In FIG. 3, the control unit 101 is a processor such as a CPU (Central Processing Unit), for example, and executes an electric power transaction adjustment program in which processes in the bilateral contract adjustment apparatus 1 of the present embodiment are described. The input unit 102 is composed of, for example, a keyboard and a mouse, and is used by the user of the computer system to input various information. The storage unit 103 includes various memories such as RAM (Random Access Memory) and ROM (Read Only Memory), and storage devices such as hard disks, and stores programs to be executed by the control unit 101 and necessary data obtained in the course of processing. store data, etc. The storage unit 103 is also used as a temporary storage area for programs. A display unit 104 is composed of an LCD (liquid crystal display panel) or the like, and displays various screens to the user of the computer system. A communication unit 105 is a receiver and a transmitter that perform communication processing. The output unit 106 is a printer or the like. Note that FIG. 3 is an example, and the configuration of the computer system is not limited to the example in FIG.

Here, an operation example of the computer system until the power transaction adjustment program of the present embodiment becomes executable will be described. The computer system configured as described above stores an electric power transaction coordination program from a CD (Compact Disc)-ROM or DVD (Digital Versatile Disc)-ROM set in a CD-ROM or DVD-ROM drive (not shown), for example. installed in the unit 103 . Then, when the power transaction adjustment program is executed, the power transaction adjustment program read from storage unit 103 is stored in storage unit 103 . In this state, control unit 101 executes processing as bilateral contract adjusting apparatus 1 of the present embodiment according to the program stored in storage unit 103 .

In the above description, a program describing the processing in the bilateral contract adjustment apparatus 1 is provided using a CD-ROM or DVD-ROM as a recording medium, but the configuration of the computer system is not limited to this. For example, a program provided via a transmission medium such as the Internet via the communication unit 105 may be used depending on the capacity of the program.

The planned value registration unit 12, the adjustment condition registration unit 13, the check result reflection unit 15, the plan adjustment unit 16, the transaction monitoring unit 17, the result output unit 18, and the wide area machine related unit 19 shown in FIG. 101. A storage unit 103 is also used to implement the adjustment condition registration unit 13, the check result reflection unit 15, the plan adjustment unit 16, the transaction monitoring unit 17, the result output unit 18, and the wide area machine related unit 19. FIG. Storage unit 14 shown in FIG. 1 is implemented by storage unit 103 shown in FIG. The communication unit 11 shown in FIG. 1 is implemented by the communication unit 105 shown in FIG. The result output unit 18 is implemented by the output unit 106 in addition to the control unit 101 .

The business operator device 2 shown in FIG. 2 is also implemented by a computer system. The business operator device 2 is realized by, for example, the computer system shown in FIG. 3, like the bilateral contract adjusting device 1. Business operator device 2 of the present embodiment functions as business operator device 2 by executing a program describing processing in business operator device 2 on the computer system. The operation of the computer system until the program becomes executable is the same as that of the bilateral contract adjustment device 1 .

The plan creation unit 22, the plan check unit 23, and the adjustment request generation unit 25 shown in FIG. 2 are implemented by the control unit 101 shown in FIG. A storage unit 103 is also used to implement the plan creation unit 22 , the plan check unit 23 and the adjustment request generation unit 25 . The communication unit 11 shown in FIG. 2 is implemented by the communication unit 105 shown in FIG. The display unit 26 shown in FIG. 2 is implemented by the output unit 106 shown in FIG.

Next, the operation of the power trading coordination system of this embodiment will be described. First, the period during which each process is performed in this embodiment will be described. FIG. 4 is a diagram showing the relationship between each process performed in the power trading coordination system of the present embodiment and the period. In FIG. 4, the day when supply and demand actually occur is the current day, and the day before the current day is the previous day. As described above, on the previous day, each operator is required to submit a plan for supply and demand on the day of the next day, that is, the current day in FIG. In the example shown in FIG. 4, the next-day plan submission deadline, which is the final submission deadline for the next-day plan, is 12:00 on the previous day. The next-day plan submission deadline is a deadline to be observed by all business operators, regardless of whether there is a bilateral contract.

In the example shown in FIG. 4, the plan registration deadline is set to 11:00 on the previous day, one hour before 12:00 on the previous day, which is the next-day plan submission deadline. The plan registration deadline is a deadline set for each bilateral contract. The plan registrant registers the plan values for the next day in the bilateral contract adjustment device 1 by the plan registration deadline. As shown in FIG. 4, the plan registration period during which the plan registrant can register the plan values for the next day is the period before the plan registration deadline. The starting point of the plan registration period can be arbitrarily determined as long as it is before the plan registration deadline. The period from the plan registration deadline to the next day's plan submission deadline is a plan check period during which the plan registrant can check the plan.

As described above, in the present embodiment, the bilateral contract adjustment device 1 automatically adjusts the plan values according to the adjustment conditions for each bilateral contract after the next day's plan submission deadline. A period during which the bilateral contract adjustment device 1 can adjust the planned value is called an adjustment period. The starting point of the adjustment period is the next day plan submission deadline, and the plan adjustment deadline (hereinafter referred to as the adjustment deadline in the figure), which is the end point of the adjustment period, is determined for each bilateral contract. The schedule adjustment deadline is set to be before the gate closes. Gate closing is the deadline for submitting the plan for the day to the OCCTO, and in the example shown in FIG. Gate closing is the deadline that all operators must adhere to regardless of whether they have a bilateral contract or not. In the present embodiment, during the adjustment period, only adjustment by the bilateral contract adjustment device 1 is performed, and the plan value cannot be changed by the business operator. Note that FIG. 4 shows an example of the deadline for submission of the plan for the next day and the gate closing currently determined by the OCCTO, but as described above, these specific times are not limited to this example.

Next, in the power trading coordination system of the present embodiment, processing up to provisional determination of planned values for the next day will be described. In the present embodiment, as described with reference to FIG. 4, registration of planned values for the next day and checking of the planned values are performed before the next day's plan submission deadline. Planned values that have undergone checking are tentatively determined as planned values for the next day. This tentatively determined plan value corresponds to the plan value in the next-day plan submitted to the OCCTO.

FIG. 5 is a chart showing the operation up to provisional determination of the planned value for the next day in the power trading coordination system of the present embodiment. First, the business operator device 2 of the plan registrant prepares a demand amount plan for the next day for each bilateral contract (step S1), and uses the planned value for each time slot in the prepared plan as planned value information as a bilateral contract coordinating device. 1 (step S2). As described above, the provider device 2 connected to the supply and demand management system 3 may acquire the next day's plan created by the supply and demand management system 3 and create the next day's plan based on the next day's plan.

The bilateral contract adjustment device 1 registers the plan value received from the business operator device 2 of the plan registrant (step S3). Specifically, the bilateral contract adjustment device 1 registers the planned value by storing the planned value information received from the business operator device 2 in the storage unit 14 . Steps S1 to S3 described above are performed during the plan registration period.

Next, during the plan check period, the operator device 2 of the plan checker receives the plan values registered by the operator device 2 of the plan registrant from the bilateral contract adjustment device 1 (step S4). For example, the business operator device 2 of the plan checker requests the bilateral contract adjustment device 1 to read out the plan value information corresponding to the relevant business operator device 2, thereby registering it with the business operator device 2 of the plan registrant receive planned values. As described above, the plan checker's operator device 2 may receive plan values from the plan registrant's operator device 2 . Next, the operator device 2 of the plan checker checks the plan values registered by the operator device 2 of the plan registrant (step S5), and transmits the check result to the bilateral contract adjustment device 1 (step S6). . As described above, the operator device 2 of the plan checker transmits the amount of correction to the bilateral contract adjustment device 1 as a check result when the plan value registered by the operator device 2 of the plan registrant needs to be corrected. do. Upon receiving the check result from the operator's device 2 of the plan checker, the bilateral contract adjustment device 1 reflects the check result in the stored plan value information (step S7). By the above processing, the planned values for the next day are tentatively determined. In step S7, the planned value after the check result is reflected becomes the provisional fixed value. The provisional fixed value is the planned value agreed between the two businesses corresponding to the bilateral contract, as described above.

Next, the adjustment processing of the planned values performed by the bilateral contract adjusting apparatus 1 of the present embodiment after the planned values for the next day are tentatively determined will be described. Here, first, information used for adjustment processing of planned values will be described. FIG. 6 is a diagram showing an example of basic contract information stored in the storage unit 14 of the bilateral contract adjustment apparatus 1 of the present embodiment. The contract basic information is one of the information on which adjustment amount information, which will be described later, is based. The contract basic information is registered by a business operator when the business operator who has concluded a bilateral contract participates in the power trading coordination system of the present embodiment, or when he/she newly concludes a bilateral contract. For example, the business operator registers the basic contract information by operating the business operator device 2 to transmit the basic contract information from the business operator device 2 to the bilateral contract adjustment device 1 . Since the contract basic information is information agreed between the parties to the bilateral contract, the registration of the contract basic information in the bilateral contract adjustment apparatus 1 may be performed by either party to the bilateral contract. Further, when the contract basic information that has been registered is changed by agreement between the parties, the business operator changes the content registered in the bilateral contract adjustment device 1 via the business operator device 2 .

As shown in FIG. 6, the contract basic information includes information identifying the contract, upper limit of power supply amount, lower limit of power supply amount, plan registrant, plan registration deadline, plan It consists of an adjustment deadline. The upper and lower limit values are the upper and lower limit values stipulated in the contract, such as on a yearly basis, and are used to confirm whether the adjusted values are within these values in the planned value adjustment processing described later. may Since bilateral contracts are targeted here, information identifying a contract means information identifying a bilateral contract. In FIG. 6, in order to make it easier to understand the business operator that is the target of the bilateral contract and the direction of power supply, the information that identifies the bilateral contract is divided into the following: Although shown in the form of information, the form of information is not limited to this example. In addition, in FIG. 6, the identification information of the businesses is represented by the abbreviations of the types of businesses and the identification characters, such as the power generation business A being described as Hori A, and the retail business business A being described as Small a. ing. In the example shown in FIG. 6, at least power generators A, B, and C and retailers a, b, c, d, e, and f participate in the power trading coordination system of the present embodiment. .

For example, in the example shown in FIG. 6, "Generator A-Small b" written at the top indicates a bilateral contract in which power is supplied from power generator A to retailer b. In this contract, the power producer A is set as the plan registrant. Therefore, the retailer b, who is the other party of this bilateral contract, becomes the plan checker. Also, in this contract, the plan registration deadline is set to 60 minutes before the submission deadline, that is, the deadline for submitting the next day's plan. Therefore, if the submission deadline for the plan for the next day is 12:00, the plan registration deadline is 11:00. Also, in this contract, the schedule adjustment deadline is set to 60 minutes before gate closing (GC). In the example shown in FIG. 6, the plan registration deadline and the plan adjustment deadline are all the same values, but they are set for each bilateral contract and do not have to be the same value. .

Since it is not preferable for anyone other than the parties to the bilateral contract to be able to view information related to other bilateral contracts, the bilateral contract adjustment device 1 allows only the corresponding parties to view and edit the contract basic information corresponding to each bilateral contract. Set the access rights for basic contract information as possible. For example, access rights related to viewing and editing may be set for each piece of information stored in the storage unit 14 for each identification information of the business operator device 2 , or the business operator may The configuration may be such that a login is made to the bilateral contract adjustment device 1, and access rights relating to viewing and editing may be set for each piece of information stored in the storage unit 14 for each login ID (IDentifier) assigned to the business operator. .

For example, in the example shown in FIG. 6, since the first to third contracts from the top are bilateral contracts in which power generation company A is a party, power generation company A has the contract basic information shown in FIG. The information in area 201 can be viewed and edited.

FIG. 7 is a diagram showing an example of planned value information stored in the storage unit 14 of the bilateral contract adjustment apparatus 1 of the present embodiment. The planned value information is not used in the process of adjusting planned values in this embodiment, but is used in the process of cooperation with the OCCTO. As shown in FIG. 7, the plan value information is composed of information indicating the time period of each 30-minute frame and the amount of electric power to be supplied within the frame for each bilateral contract. In the example shown in FIG. 7, the vertical direction indicates each time period, and the horizontal direction indicates bilateral contracts. It should be noted that in FIG. 7, as in the example shown in FIG. 6, the information for identifying each contract is shown in the format of the abbreviation of the supply source company-the abbreviation of the supply destination company. For example, the first bilateral contract from the left in the planned value information shown in FIG. 7 is a contract for power supply from power generator A to retailer b.

As described above, the planned value information is tentatively determined through registration by the plan registrant and checking by the plan checker. The tentatively decided planned values correspond to the planned values submitted by each company as the plan for the next day. It should be noted that the procedure before the tentatively determined plan value is determined is not limited to the example described above. For example, without specifying a plan registrant and a plan checker, the agreed plan value is determined as the next day's plan by coordinating between the parties of the bilateral contract, and this plan value is used as plan value information by one of the parties However, it may be registered in the bilateral contract adjustment device 1 as tentatively determined plan value information by the next day's plan submission deadline.

After the plan value information is tentatively determined as the value for the next day by the next day's plan submission deadline, it may be changed by the adjustment processing of the plan value by the bilateral contract adjustment device 1, but the direct change from the business operator can't. In addition, similar to the contract basic information, the bilateral contract adjustment device 1 sets the access right of the planned value information so that only the person corresponding to the bilateral contract can view and edit the planned value information corresponding to each bilateral contract. back. For example, in the example shown in FIG. 7, since the contracts from the first left to the third are bilateral contracts in which the power generation company A is a party, the power generation company A uses the planned value information shown in FIG. Information in area 202 can be viewed and edited.

FIG. 8 is a diagram showing an example of adjustment condition information stored in the storage unit 14 of the bilateral contract adjustment apparatus 1 of the present embodiment. The adjustment condition information is information indicating the conditions for the adjustment processing of the planned value by the bilateral contract adjustment device 1 of the present embodiment. The adjustment condition information indicates adjustment conditions for adjusting the planned value of the amount of power supplied based on the bilateral contract from the tentative fixed value agreed between the two business operators for each bilateral contract. The adjustment condition information is one of the information that forms the basis of adjustment amount information, which will be described later. As shown in FIG. 8, the adjustment condition information includes information identifying a contract, an adjustment kicker, a fluctuation absorber, an increase price, a decrease price, a possible downward fluctuation amount from the next day plan submission price, and the next day It consists of the amount of fluctuation that can be raised from the plan submission value. The information identifying the contract is the same as the information identifying the contract in the basic contract information shown in FIG. The increase price, the decrease price, the possible amount of downward fluctuation from the next day's plan submission value, and the possible upward fluctuation amount from the next day's plan submission value are information determined by the fluctuation absorber.

The adjustment kicker, which is the first business operator, is a business operator capable of transmitting a plan adjustment request that serves as a trigger for starting the adjustment processing of the planned value by the bilateral contract adjustment device 1 of the present embodiment, and concludes a bilateral contract. It is one of the businesses that The second operator, the fluctuation absorber, is an operator who absorbs changes in the planned values requested by the adjustment kicker, that is, changes the planned values as requested. Of the two companies that have entered into one bilateral contract, one is the adjustment kicker and the other is the fluctuation absorber. Therefore, if an adjustment kicker is determined for each bilateral contract, the fluctuation absorber will be automatically determined. Business operators who have concluded a bilateral contract agree on who will be the coordinating kicker.

In a bilateral contract, one business operator supplies power to the other business operator, so if either business operator changes the planned value, the other business operator also needs to change the planned value. If there is only one bilateral contract, if the adjustment kicker requests a change in the planned value, the only business operator that can accept this change is the fluctuation absorber in this bilateral contract. On the other hand, if one business operator concludes a plurality of bilateral contracts, there may be a plurality of business operator candidates who change the planned values according to the request of this business operator. In other words, if there are multiple bilateral contracts in which one business operator is the coordinating kicker and other business operators are the fluctuation absorbers, multiple other business operators corresponding to the multiple bilateral contracts will Candidates for businesses to change the value. In the present embodiment, the fluctuation absorber predetermines an increase price, a decrease price, a possible downward fluctuation amount from the next-day plan submission value, and an upward fluctuation possible amount from the next-day plan submission value. The contract adjustment device 1 considers these factors and determines the business operator that actually changes the planned value and the adjustment amount that is the amount of electric power to be changed.

The increase price and the decrease price constitute the first price. The first price is the unit price of power absorbed when the fluctuation absorber absorbs the change in the planned value requested by the adjustment kicker. In other words, the first price is the unit price of electric energy that changes due to the change of the planned value from the provisional fixed value, and is the unit price acceptable to the second business operator. The increase price is the unit price when the change in the plan value requested by the adjustment kicker is a change in the direction of increasing the supply amount, and the decrease price is the change in the plan value requested by the adjustment kicker. It is the unit price when it is a change in the direction of lowering the quantity.

The amount of possible downward fluctuation from the next day's plan submission value (hereinafter referred to as the possible amount of downward fluctuation) is a value that indicates the maximum amount of electric power that the fluctuation absorber can reduce from the tentatively determined planned value for the next day. . In the example shown in FIG. 8, the possible downward fluctuation amount is the amount of electric power that can be reduced from the planned value, so the positive/negative sign is indicated by a negative value. The possible increase fluctuation amount from the next day's plan submission value (hereinafter referred to as the increase fluctuation amount) is a value that indicates the maximum power amount that the fluctuation absorber can raise from the tentatively determined plan value for the next day. . In the example shown in FIG. 8, the increase variable amount is the electric power amount that can be increased from the planned value, so the positive and negative signs are indicated by positive values. It should be noted that when the downward fluctuation amount and the upward fluctuation amount are indicated without distinction, they are referred to as the fluctuation amount. The variable amount indicates the amount of change in the planned value from the tentative fixed value acceptable to the second operator.

The information of the adjustment kicker and the fluctuation absorber in the adjustment condition information may be registered from either the adjustment kicker or the fluctuation absorber. However, for each bilateral contract, it is assumed that the parties have agreed which of them will be the coordinating kicker. Also, since the increase price, decrease price, possible downward fluctuation amount, and possible upward fluctuation amount are determined by the fluctuation absorber, they are registered from the operator device 2 of the fluctuation absorber. The adjustment condition information may be set for each frame, that is, for each 30-minute time slot, or the registered adjustment condition information may be used regardless of the frame as long as the adjustment condition information is not changed. A form in which no information is set may be adopted. When the adjustment condition information is set for each frame, the information illustrated in FIG. 8 is stored in the storage unit 14 for each time period. Alternatively, the adjustment condition information may be set in units of a plurality of frames.

In addition, similar to the contract basic information, the bilateral contract adjustment device 1 sets the access right to the adjustment condition information so that only the corresponding party can view and edit the adjustment condition information corresponding to each bilateral contract. back. However, since the adjustment terms information is information determined by the change absorber, the access rights to the adjustment terms information should be set so that only the change absorber of the corresponding bilateral contract can view and edit it. good too. Access rights may be set so that adjustment kickers can only view adjustment condition information related to the corresponding bilateral contract. For example, in the example shown in FIG. 8, the contracts from the top to the third are bilateral contracts in which the power generation company A is a party, so the power generation company A uses the adjustment condition information shown in FIG. Information in area 203 can be viewed and edited.

Note that the fluctuation absorber determines the increase price, the decrease price, the possible amount of downward fluctuation, and the possible amount of upward fluctuation according to, for example, the capacity of the equipment that it manages and the supply and demand situation. For example, if the fluctuation absorber is a power generation company and the direction of power supply in the bilateral contract is from the power generation company to the retailer, the price increase can be regarded as the cost of power generation. You want to make a decision considering your interests. In addition, if the fluctuation absorber is a power generation company and the direction of power supply in the bilateral contract is the direction of supplying power from the power generation company to the retailer, all power generators under management can generate power. Depending on the difference between the maximum power generation amount, which is the sum of the maximum values, and the planned value for the next day, the amount that can be increased is determined. In addition, a business operator that is a fluctuation absorber for multiple bilateral contracts can allocate the possible downward fluctuation amount and the possible upward fluctuation amount to multiple bilateral contracts, respectively. determine the possible amount. For example, assume that the fluctuation absorber, who is a power generation company, considers the maximum power generation amount and the planned value for the next day and determines that the planned value can be raised to a total of 300 kWh. Suppose that this fluctuation absorber has become a fluctuation absorber in three bilateral contracts. In this case, the fluctuation absorber may divide 300 kWh by 3, ie, 100 kWh, as the maximum variable amount for each bilateral contract, or assign different maximum variable amounts, such as 80 kWh, 100 kWh, and 120 kWh, to the three bilateral contracts. You may do so.

In addition, if the fluctuation absorber is a power generation company and the direction of power supply in the bilateral contract is from the power generation company to the retailer, adjustments will be made to lower the planned value. This corresponds to the return of the decrease from the tentatively determined planned value from the retailer to the power generation business. Power generation companies will purchase the amount that has decreased from the tentatively determined planned value, but if the planned value decreases, the power generation company will have to pay for that amount, so the reduced price is generally set at a low value. . In addition, if the fluctuation absorber is a retailer and the direction of power supply in the bilateral contract is from the power generator to the retailer, adjustments will be made to raise the planned value. This corresponds to the power generation company forcing the retailer to purchase the increased amount from the tentatively determined planned value. Therefore, in this case, the reduced price is generally set at a low value. In addition, if the fluctuation absorber is a retailer and the direction of power supply in the bilateral contract is from the power generator to the retailer, adjustments are made to lower the planned value. In this case, the power generator will supply the retailer with a supply amount less than the provisionally determined planned value, and the retailer will respond by purchasing the insufficient power by other means. Therefore, in this case, the increased price is generally set in consideration of the cost of procurement by the retailer by other means. The method of determining the increase price, decrease price, possible decrease amount, and increase amount is not limited to the above example. It is possible to arbitrarily determine the amount of possible upward fluctuation according to one's own convenience.

FIG. 9 is a diagram showing an example of adjustment amount information stored in the storage unit 14 of the bilateral contract adjustment apparatus 1 of the present embodiment. The adjustment amount information is information that is used in the planned value adjustment processing by the bilateral contract adjustment device 1 of the present embodiment and that is updated as appropriate during the planned value adjustment processing. When the basic contract information and the adjustment condition information are registered, the plan adjustment unit 16 of the bilateral contract adjustment device 1 generates adjustment amount information based on the basic contract information and the adjustment condition information and stores it in the storage unit 14 . Further, when one or both of the contract basic information and the adjustment condition information are updated, the plan adjustment unit 16 of the bilateral contract adjustment device 1 updates the adjustment amount information based on the updated information. The adjustment amount information is set for each frame, that is, for each 30-minute time slot. That is, the storage unit 14 stores the adjustment amount information for each time period of 30 minutes.

As shown in FIG. 9, the adjustment amount information includes information identifying a contract, an adjustment deadline, an adjustment kicker, a fluctuation absorber, an increase price, a decrease price, a possible amount of downward fluctuation, and an upward fluctuation possible. It consists of the amount and the amount of fluctuation at the present time. Of the adjustment amount information, information other than the adjustment deadline and the amount of fluctuation at the present time is the same item as the adjustment condition information, and the same value as the adjustment condition information is stored as the initial value. Further, the adjustment term of the adjustment amount information stores the same value as the adjustment term of the basic contract information. The adjustment kicker, the fluctuation absorber, the raising price, and the lowering price are not changed by the bilateral contract adjustment device 1, but the downward fluctuation amount and the upward fluctuation amount are looped as described later. may be changed by the bilateral contract adjustment device 1 in order to prevent the planned value from being adjusted in the future.

The amount of variation at the present time indicates the accumulated value at the present time of the adjustment amount that has been changed from the temporary fixed value by the adjustment process, and the initial value is set to zero. When the planned value of the fluctuation absorber is changed by the adjustment processing of the planned value, which will be described later, this adjustment amount is reflected in the current fluctuation amount. That is, the current variation amount is updated each time the planned value is adjusted. The bilateral contract adjusting device 1 adjusts the plan value so that the current fluctuation amount of each bilateral contract does not fall below the possible downward fluctuation amount and does not exceed the possible upward fluctuation amount.

Next, the details of the planned value adjustment processing by the bilateral contract adjustment device 1 of the present embodiment will be described. In the planned value adjustment process of the present embodiment, the bilateral contract adjustment device 1 uses the adjustment conditions preset by the fluctuation absorber and the conditions requested by the adjustment kicker according to the plan adjustment request, so that the adjustment can be performed. A fluctuation absorber and an adjustment amount that satisfy the conditions to be established are obtained. If a request for adjustment of planned values is received from an arbitrary business operator without determining an adjustment kicker and a fluctuation absorber, there is a possibility that adjustments in opposite directions will be received at the same time, which complicates the adjustment process. In this embodiment, by separating the roles of the adjustment kicker and the variation absorber and performing adjustment in this way, it is possible to suppress the adjustment process from becoming complicated and adjust the planned value. .

FIG. 10 is a flow chart showing an example of a procedure for adjusting the planned values by the bilateral contract adjusting apparatus 1 of the present embodiment. The processing shown in FIG. 10 is performed after the provisional determination of the planned values for the next day explained in FIG. As shown in FIG. 10, the plan adjustment unit 16 of the bilateral contract adjustment device 1 determines whether or not a plan adjustment request has been received from the business operator device 2 via the communication unit 11 (step S11). Before the processing shown in FIG. 10 is performed, each business operator has already registered basic contract information and adjustment condition information, and the plan adjustment unit 16 of the bilateral contract adjustment device 1 adjusts based on the adjustment condition information. It is assumed that the amount information has been generated and the adjustment amount information has been stored in the storage unit 14 .

FIG. 11 is a diagram showing a configuration example of a plan adjustment request according to this embodiment. As shown in FIG. 11, the plan adjustment request indicates the identification information of the operator indicating the sender, the date and time to be adjusted, and the amount of change in the plan value that the sender wishes to adjust. A desired adjustment amount and a desired price are included. The business operator identification information indicating the transmission source business operator is the identification information indicating the transmission source business operator of the plan adjustment request. This is information indicating the time zone of The amount of change desired to be adjusted (hereinafter referred to as desired adjustment amount) indicates the amount desired to be changed from the current plan value by the operator who sent the plan adjustment request. The desired adjustment amount is assumed to take a negative value when the power is insufficient in the operator who sent the plan adjustment request, and take a positive value when the power is surplus. For example, in the case of a bilateral contract in which the provider of the plan adjustment request is the power supply source, the desired adjustment amount becomes a negative value when the power to be supplied becomes insufficient. At this time, in this bilateral contract, the amount of power to be supplied will decrease, so an adjustment is made to reduce the planned amount of supply. On the other hand, in the case of a bilateral contract in which the business operator that sent the plan adjustment request is the recipient of the power supply, the desired adjustment amount will be a negative value if the power to be supplied becomes insufficient. In the adjustment of the planned value of the bilateral contract, an adjustment is made to increase the planned value. In this way, even if the desired adjustment amount is the same, the direction of increasing or decreasing the planned value in the adjustment of the planned value will differ depending on the direction of power supply in the bilateral contract.

The desired price is the unit price of electric energy that changes due to the change of the planned value from the tentative fixed value, and indicates the unit price desired by the business operator who requested the plan adjustment request. The desired price is the final amount changed by the business operator who requested the change due to the change. It is the desired unit price for the kicker. Regarding the amount of adjustment, which of the fluctuation absorber and the adjustment kicker will be the payer depends on the direction of the electricity supply specified in the bilateral contract, and which of the electricity supply source and the supply destination is the adjustment kicker. and whether it adjusts to lower or higher planned values. For example, if there is a bilateral contract to supply electricity from power generation company A to retailer a, and power generation company A is the adjustment kicker, if an adjustment is made to raise the planned value, power generation company A receives payment from retailer a. Therefore, considering the profit of the adjustment kicker, the higher the desired unit price, the better. On the other hand, in such a case, it is highly likely that the retailer, who absorbs fluctuations, has set a low discounted price in the adjustment condition information. There is also sex. Therefore, the adjustment kicker determines the desired unit price according to, for example, the degree of necessity of adjustment.

Returning to the description of FIG. If it is determined in step S11 that the plan adjustment request has not been received from the provider apparatus 2 (step S11 No), the plan adjustment unit 16 repeats step S11. If it is determined in step S11 that a plan adjustment request has been received from the provider apparatus 2 (Yes in step S11), the plan adjustment unit 16 selects a partner that can be adjusted by the provider corresponding to the provider apparatus 2 that has transmitted the plan adjustment request. It is determined whether or not there is a contract (step S12). Specifically, the plan adjustment unit 16 refers to the adjustment amount information stored in the storage unit 14 to determine whether there is a bilateral contract in which the operator that sent the plan adjustment request is a coordinator. determine whether

When the plan adjustment unit 16 determines that there is no bilateral contract that can be adjusted by the business operator corresponding to the business operator device 2 that has transmitted the plan adjustment request (step S12 No), the process related to the received plan adjustment request ends. As a result, even if a plan adjustment request is received from someone other than the adjustment kicker, the adjustment processing of the plan values is not performed.

If it is determined in step S12 that there is a bilateral contract that can be adjusted by the business operator corresponding to the business operator device 2 that has transmitted the plan adjustment request (Yes in step S12), the plan adjustment unit 16 sends the plan adjustment request to the business operator that has sent the plan adjustment request. The adjustment amount information of the bilateral contract that can be adjusted by the business operator corresponding to the apparatus 2 is extracted (step S13). Specifically, the plan adjustment unit 16 determines from the adjustment amount information stored in the storage unit 14 that the operator that sent the plan adjustment request is the adjustment kicker and that the adjustment deadline has not passed. and extracts the adjustment amount information of the bilateral contract that satisfies the conditions for establishment of the adjustment.

Here, the condition for establishment of adjustment and the order of adjustment in the adjustment processing of the planned value of the present embodiment will be described for each case. Note that, hereinafter, the company that supplies power is simply referred to as a supply source, and the company that is a destination of power supply is simply referred to as a supply destination. Here, case no. 1 to case No. Four cases up to 4 will be described separately. In the following description, payment direction indicates whether payment for the amount of power generated by the adjustment is made from the source to the destination or from the destination to the source. The adjustment direction indicates the direction from the adjustment kicker to the change absorber, and when the adjustment kicker is the power supply source, the adjustment direction is the direction from the supply source to the supply destination, and the adjustment kicker is the direction from the power supply source to the power supply destination. In the case of the supply destination, the adjustment direction is the direction from the supply destination to the supply source.

The plan adjustment unit 16 determines bilateral contracts to be adjusted so that the profit of the sender of the plan adjustment request is maximized. , is different from the bilateral contract that should be considered with priority. For example, case no. In the case of 1, the change direction of the planned value is the direction to increase the planned value, the payment direction is from the supply destination to the supply source, and the adjustment kicker is the supply source. Therefore, case no. In 1, the adjustment direction is the direction from the supply source to the supply destination, and the adjustment direction and the payment direction do not match. Case no. In the case of 1, when the business operator device 2 corresponding to the adjustment kicker transmits a plan adjustment request, it is better for the business operator that sent the plan adjustment request to purchase the plan value increased by the adjustment at a higher price. Advantageous. Therefore, case no. In 1, the condition for establishment of the adjustment is that the increase price is equal to or higher than the desired price notified by the plan adjustment request, and the order in which the adjustment proceeds is in descending order of the increase price. The increase price is set by the fluctuation absorber as described above.

Case no. In the case of 2, it is assumed that the change direction of the planned value is to increase the planned value, the payment direction is from the supply destination to the supply source, and the adjustment kicker is the supply destination. For this reason, case no. In 2, the adjustment direction is the direction from the supply destination to the supply source, and the adjustment direction and the payment direction match. Case no. In 2, when the business operator device 2 corresponding to the adjustment kicker transmits a plan adjustment request, the lower the purchase price for the increase due to the adjustment, the better the business operator that sent the plan adjustment request. Therefore, case no. In 2, the condition for establishment of the adjustment is that the increase price is equal to or less than the desired price notified by the plan adjustment request, and the order in which the adjustment proceeds is in ascending order of the increase price.

Case no. In the case of 3, it is assumed that the change direction of the planned value is to decrease the planned value, the payment direction is from the supplier to the supply destination, and the adjustment kicker is the supplier. For this reason, case no. In 3, the adjustment direction is the direction from the supply source to the supply destination, and the adjustment direction and the payment direction match. Case no. In 3, when the operator device 2 corresponding to the adjustment kicker transmits a plan adjustment request, the operator that sent the plan adjustment request pays the supply destination for the reduction of the planned value due to the adjustment. It will be. Case no. In 3, the lower the amount to be paid by the adjustment, the better the operator who sent the plan adjustment request. Therefore, case no. In 3, the condition for establishment of adjustment is that the reduced price is equal to or lower than the desired price notified by the plan adjustment request, and the order in which adjustments are made is in descending order of the reduced price. Note that the reduced price is set by the fluctuation absorber as described above.

Case no. In the case of 4, it is assumed that the change direction of the planned value is to decrease the planned value, the payment direction is from the supply source to the supply destination, and the adjustment kicker is the supply destination. Therefore, case no. In 4, the adjustment direction is the direction from the supply destination to the supply source, and the adjustment direction and the payment direction do not match. Case no. In 4, when the business operator device 2 corresponding to the adjustment kicker transmits a plan adjustment request, the business operator that sent the plan adjustment request reduces the planned value of the amount of power to be supplied by the adjustment. will be purchased from the supplier. Case no. In 4, the higher the purchase price, the more advantageous it is for the company that sent the plan adjustment request. Therefore, case no. The condition for establishment of the adjustment in 4 is that the reduced price is greater than or equal to the desired price notified by the plan adjustment request, and the order in which the adjustment proceeds is in descending order of the reduced price.

The positive/negative correspondence between the four cases described above and the desired adjustment amount is as follows. If the desired adjustment amount is positive, case no. 1, and case No. 1 when the coordinating kicker is the supply destination. 4. In addition, when the desired adjustment amount is negative, case No. 1 is applied when the adjustment kicker is the supply source. Corresponding to case No. 3, when the coordinating kicker is the supply destination. 2. Therefore, the bilateral contracts extracted in step S13 for one plan adjustment request are case numbers. 1 and case no. 4, or case no. 2 and case no. is at least one of 3; Therefore, the bilateral contract extracted in step S13 has a case number. 1 to case No. Even if bilateral agreements in multiple cases out of 4 are included, case no. 1 and case no. 4 or case no. 2 and case no. It is a combination of 3. For example, case no. 1 and case no. 2 combination, case no. 2 and case no. There is no combination of 4.

Case no. 1 and case no. In 4, the items to be referred to are the raised price and the lowered price, respectively, and although the items are different, the order of adjustment is the descending order of the price. Case no. 2 and case no. In 3, the items to be referred to are the raised price and the lowered price, respectively, and although the items are different, the order of adjustment is the ascending order of the price. Therefore, in step S13, the plan adjustment unit 16 first extracts, from the adjustment amount information, information for which the operator that sent the plan adjustment request is the adjustment kicker and whose adjustment deadline has not passed, and extracts If the bilateral contract corresponding to the adjusted amount information is the case No. 1 to No. 4 is determined. The plan adjustment unit 16 further extracts adjustment amount information that satisfies conditions for establishment of adjustment in each case based on the determination result from the extracted adjustment amount information.

Next, the plan adjustment unit 16 uses the extracted adjustment amount information to adjust the plan value so that the profit of the business operator that sent the plan adjustment request is maximized (step S14). Specifically, the plan adjustment unit 16 maximizes the profit of the business operator that sent the plan adjustment request within the range that satisfies the conditions for establishment of the adjustment, and the bilateral contract to be adjusted and the corresponding adjustment amount. to determine. As mentioned above, the adjustment kicker and the variation absorber are specified for each bilateral contract, so when the bilateral contract to be adjusted is determined, the variation absorber to be adjusted is also determined. be.

In step S14, the plan adjustment unit 16 uses the extracted adjustment amount information, for example, by adjusting the plan value based on the order of adjustment according to the above-described case, so that the business that sent the plan adjustment request Adjust the planned value so that the profit of the person is maximized. As described above, even if the desired adjustment amount is the same, depending on the direction of power supply for each bilateral contract, whether the requested adjustment is an adjustment to lower the planned value or an adjustment to raise it will differ. become.

Specifically, in step S14, the plan adjustment unit 16 refers to the increase price of each bilateral contract or determines the decrease price based on whether the desired adjustment amount is positive or negative from the adjustment amount information extracted in step S13. to decide whether to refer to Then, the plan adjustment unit 16 arranges the bilateral contracts in the order of adjustment determined by the adjustment amount information based on the prices to be referred to. As described above, the extracted case No. 1 and case no. 4 are mixed, or case No. 2 and case no. 3 may be mixed. However, although the price to be referred to differs depending on whether it is an increase price or a decrease price, case no. 1 and case no. In all cases, the order of adjustment is in descending order, and although the reference price differs depending on whether the price is raised or lowered, case No. 2 and No. 3, the order of adjustment is in ascending order. Therefore, when the price to be referred to is determined, the plan adjustment unit 16 may arrange the prices to be referred to in descending order or descending order regardless of the case.

That is, when the desired adjustment amount is a positive value, the plan adjustment unit 16 gives priority to the bilateral contract with the higher first price among the bilateral contracts whose first price is equal to or greater than the desired adjustment price, which is the second price. will be determined as an adjustment target. In addition, when the desired adjustment amount is a negative value, the plan adjustment unit 16 preferentially determines, in descending order of the first price among the bilateral contracts for which the first price is equal to or less than the desired adjustment price, the contract to be adjusted. It will be. Specifically, when the desired adjustment amount is a positive value, the plan adjustment unit 16 refers to the increased price for a bilateral contract in which the business operator that requested the plan adjustment request is the power supply source, and We refer to discounted prices for bilateral contracts in which the supplier is the destination. In addition, when the desired adjustment amount is a negative value, the plan adjustment unit 16 refers to the discounted price for a bilateral contract in which the requesting business operator of the plan adjustment request is the power supply source, We refer to the raised price for bilateral contracts to which

Then, it is determined whether or not the desired adjustment amount can be covered by the upward variable amount or the downward variable amount in the bilateral contract corresponding to the extracted adjustment amount information in the order determined by the adjustment order. It should be noted that whether the desired adjustment amount is positive or negative and whether the desired adjustment amount is positive or negative depends on whether the adjustment kicker is the supplier. It is determined by whether it is a supplier or a supplier. Specifically, among the four cases described above, the case No. 1 that refers to the raised price is selected. 1, No. In the case of case No. 2, the up fluctuation amount is referred to, and the down price is referred to. 3, No. In the case of 4, the amount of downward variation is referred to.

If the first bilateral contract in the order of adjustment can cover the desired adjustment amount, the plan adjustment unit 16 determines this bilateral contract as an adjustment target and adjusts the adjustment amount, which is the amount to change the planned value of this bilateral contract. It decides and ends step S14. If the desired adjustment amount cannot be covered, the plan adjustment unit 16 determines whether the desired adjustment amount can be covered by the first bilateral contract and the next bilateral contract in the order of adjustment. The plan adjustment unit 16 repeats these steps to sequentially increase bilateral contracts to be considered until the desired adjustment amount is covered, and when the desired adjustment amount can be covered, step S14 ends. If the desired adjustment amount cannot be met even after considering all the bilateral contracts corresponding to the extracted adjustment amount information, the adjustment may be made only for the amount that can be adjusted, or the adjustment may be made by judging that the adjustment is not possible. You don't have to.

Returning to the description of FIG. 10, the plan adjustment unit 16 reflects the result of the adjustment performed in step S14 on the adjustment amount information in the storage unit 14 (step S15). Specifically, among the adjustment amount information, the adjustment amount, which is the adjustment result of step S14, is reflected in the current fluctuation amount of the bilateral contract determined as the adjustment target. In this way, the amount of change at the present time is the result of reflecting the amount of adjustment obtained by one adjustment process of the planned value for each adjustment process. In addition, in order to avoid loop-like adjustments, the transaction monitoring unit 17 determines that, among the adjustment amount information, the bilateral contract for which the operator that sent the plan adjustment request is the change absorber can be raised and changed. Set the amount or downward variable amount to a predetermined value. That is, after the adjustment process is performed, the transaction monitoring unit 17 predetermines the variable amount corresponding to the bilateral contract for which the operator who requested the plan adjustment request corresponding to the adjustment process is determined as the variation absorber. set to the specified value. An example of the predetermined value is 0, and the predetermined value is assumed to be 0 below. At this time, whether the transaction monitoring unit 17 sets the corresponding variable amount of the possible upward fluctuation amount and the possible downward fluctuation amount to 0 depends on whether the planned value is adjusted to be raised or lowered. depends on

Next, the plan adjustment unit 16 reflects the adjustment result in the plan value information (step S16). Specifically, the plan adjustment unit 16 changes the corresponding plan value among the plan value information stored in the storage unit 14 based on the amount of fluctuation at the present time of the bilateral contract determined as the adjustment target. . The bilateral contract adjustment device 1 may cause the result output unit 18 to display the changed planned value when the planned value is changed.

Next, the result output unit 18 transmits the adjustment result of the planned value to the corresponding business operator (step S17), and the adjustment process of the planned value is completed. Further, in step S17, if the operator whose plan value is to be changed by the adjustment process is the operator having the supply and demand management system 3, the wide area machine related section 19 sends the plan value generated by the adjustment process to the corresponding supply and demand management system 3. Notify of changes in Specifically, the wide-area machine related unit 19 transmits information necessary for correcting the planned values to the supply and demand management system 3 via the communication unit 11 . For example, the wide-area machine related unit 19 notifies, via the communication unit 11, the change amount of the planned value changed by the adjustment and the corresponding time period to the supply and demand management system 3 of the business operator whose planned value has been updated. Alternatively, the planned values changed by the adjustment and the corresponding time period may be notified. As a result, the supply and demand management system 3 can promptly reflect the adjustment result in the daily plan to be transmitted to the cross-regional organization system 4 .

In the above example, each time a plan adjustment request is received, the processing from step S12 to step S17 shown in FIG. 10, that is, the adjustment processing is performed. The processing from step S12 to step S17 may be performed with respect to the adjustment request. If there are a plurality of plan adjustment requests received within a certain period of time, the processing from step S12 to step S17 is sequentially performed for each of the plurality of plan adjustment requests. That is, the plan adjustment unit 16 determines whether or not one or more plan adjustment requests have been received within a certain period of time. Adjustment processing corresponding to one or more plan adjustment requests may be continuously performed.

Next, the processing of steps S13 and S14 will be described in detail with a specific example. FIG. 12 is a diagram showing an example of a plan value adjustment process according to the present embodiment when a plan change request of the first specific example is received. In the first specific example shown in FIG. 12, the operator device 2 of the power producer A transmits a plan adjustment request. In this plan adjustment request, the identification information of the operator is power generation operator A, the date and time to be adjusted is YYYYMMDD hh:mm, the amount of change desired to be adjusted is -100 kWh, and the desired price is 5 yen/kWh. Suppose it was

Around the center of FIG. 12, the content of the adjustment amount information corresponding to the time frame of YYYYMMDD hh:mm before receiving the plan adjustment request of the first specific example is shown. In this adjustment amount information, No (contract No.), which is a number for identifying the bilateral contract, is shown at the left end for convenience of explanation. Among the adjustment amount information shown in FIG. 1 to No. Four of four. Contract no. 1 is a bilateral contract to supply electric power from power generation company A to retailer b, and power generation company A is the coordinator. Contract no. 2 is a bilateral contract to supply electric power from the power generation company A to the retailer c, and the coordinating kicker is the retailer c. Contract no. 3 is a bilateral contract to supply electric power from power generation company A to retailer d, and power generation company A is the coordinator. Contract no. 4 is a bilateral contract to supply electric power from retailer a to power generator A, and the coordinator is retailer a.

When the plan adjustment request of the first specific example is received, the bilateral contract adjustment device 1 determines Yes in step S11 shown in FIG. 10 and performs the process of step S12. In step S12, the plan adjustment unit 16 of the bilateral contract adjustment device 1 determines whether or not the adjustment amount information includes a bilateral contract in which the power generation business operator A, who is the transmission source of the plan adjustment request, is the coordinator. to decide. As shown in FIG. 12, since the adjustment amount information includes a bilateral contract in which the power generation business operator A is the adjustment kicker, the plan adjustment unit 16 advances the process to step S13. Here, it is assumed that the time at which the bilateral contract adjustment device 1 received the plan adjustment request was before 60 minutes before YYYYMMDD hh:mm, that is, before the adjustment deadline.

In step S13, the plan adjustment unit 16 of the bilateral contract adjustment device 1 determines that the power generation business operator A is the adjustment kicker and the contract No. for which the reduced price is equal to or lower than the desired price. 1 and Contract No. 3 is extracted. FIG. 12 shows the adjustment amount information extracted in step S13 as information 301. As shown in FIG. When the desired adjustment amount is a negative value, case No. 2, No. 3, in the first specific example, the power generation business operator A is the supply source for all bilateral contracts in which the power generation business operator A serves as the coordinating kicker. Therefore, these two are both case no. 3, the plan adjustment unit 16 compares the reduced price with the desired price in step S13. As described above, the initial values of the fluctuation amounts at the present time are all set to 0, but in FIG. contract no. 1 is set to -100 kWh at present.

In the process of step S14, the plan adjustment unit 16 of the bilateral contract adjustment device 1 selects the contract No. 1 and Contract No. Regarding 3, adjustments will be made in order of decreasing price. As shown in FIG. The reduced price for Contract No. 1 is 2 yen/kWh. Since the reduced price for contract No. 3 is 3 yen/kWh, contract no. 1 is lower and the price is cheaper. Therefore, the plan adjustment unit 16 determines the contract number. Adjust from 1. The plan adjustment unit 16 determines the contract number. The downward variable amount of contract No. 1 is -130 kWh. 1 is −100 kWh at the present time, subtracting the current amount of change, which is the amount that has already been changed by adjustment, from the possible amount of downward change, the contract No. 1 is obtained. Find the tunable amount of 1. Contract no. The adjustable amount of 1 can be obtained by the following formula (1) and is −30 kWh.
-130-(-100)=-30 (1)

Since the desired adjustment amount is -100 kWh, -30 kWh adjustment cannot cover the desired adjustment amount. Therefore, the plan adjustment unit 16 determines the contract No. 1 and Contract No. Contract No. 3 with the second lowest price. By referring to the adjustment amount information of No. 3, contract No. As in 1, determine the adjustable amount. Contract no. Contract No. 3 has a possible downward fluctuation amount of -80 kWh, and the current fluctuation amount is 0 kWh. The adjustable amount of 3 is -80 kWh.

Contract no. 1 is the contract number. Since the discounted price is lower than Contract No. 3, the plan adjustment unit 16 selects Contract No. Prioritize the adjustment by contract No. 1. 1 adjustment amount is -30 kWh, contract No. An adjustment result of −70 kWh is obtained for the adjustment amount of 3. Also, in order to avoid loop-like adjustments, the transaction monitoring unit 17 determines whether the contract No. 1 for which the power generator A is the fluctuation absorber. 2 and Contract No. 4 is extracted. FIG. 12 shows the adjustment amount information extracted by the transaction monitoring unit 17 as information 302 . The transaction monitoring unit 17 sets the possible downward fluctuation amount of the extracted adjustment amount information to zero.

13A and 13B are diagrams showing an example of the adjustment processing of the plan values according to the present embodiment when the plan change request of the second specific example is received. In the second specific example shown in FIG. 13, as in the first specific example, the operator device 2 of the power generation operator A has the identification information of the power generation operator A and the date and time to be adjusted. Send a plan adjustment request with YYYYMMDD hh:mm, a desired change amount of adjustment of −100 kWh, and a desired price of 5 yen/kWh.

In the vicinity of the center of FIG. 13, the content of the adjustment amount information corresponding to the time frame of YYYYMMDD hh:mm before receiving the plan adjustment request of the second specific example is shown. This adjustment amount information is based on the first specific example and the contract number. 3 and contract no. 6 is different, but the rest is the same as the adjustment amount information of the first specific example. Contract no. The adjustment amount information of 3 is the same as the first specific example except for the reduced price. Contract no. 6 is a bilateral contract to supply power from power generation company B to power generation company A, and power generation company A is the coordinating kicker. Among the adjustment amount information shown in FIG. 1 to No. 4, No. 5 out of 6.

As in the first specific example, when the bilateral contract adjustment device 1 receives the plan adjustment request, it is determined as Yes in step S11 shown in FIG. Similarly, the process proceeds to step S13. Here, as in the first specific example, it is assumed that the time when the bilateral contract adjustment device 1 received the plan adjustment request was 60 minutes before YYYYMMDD hh:mm, that is, before the adjustment deadline.

In the second specific example, in step S13, the plan adjustment unit 16 of the bilateral contract adjustment device 1 determines that the power generation business operator A is the adjustment kicker and the contract No. for which the reduced price is equal to or lower than the desired price. 1 and contract no. 3 and contract No. 3 for which the raised price is equal to or lower than the desired price. 6 and are extracted. 13, similarly to FIG. 12, the adjustment amount information extracted in step S13 is shown as information 301. In FIG. In a second specific example, case no. Contract no. 1 and contract no. 3 and case no. 2 corresponding to contract no. 6 are mixed. The plan adjustment unit 16 determines the case No. A reduced price for the contract corresponding to case No. 3. For the contracts corresponding to 2, the raised prices are referenced, and adjustments are made in ascending order of the referenced prices.

As shown in FIG. The reduced price for Contract No. 1 is 2 yen/kWh. The reduced price for Contract No. 3 is 4 yen/kWh. The raised price of 6 is 3 yen/kWh. Therefore, if these are arranged in ascending order of price, contract no. 1 reduced price, No. 6 raised price, contract no. It will be in order of 3 lower prices. Therefore, the plan adjustment unit 16 determines the contract number. Adjust from 1. Contract no. The adjustable amount of 1 is -30 kWh as in the first example. Since the desired adjustment amount is -100 kWh, -30 kWh adjustment cannot cover the desired adjustment amount. Therefore, the plan adjustment unit 16 selects the next cheapest contract number. The adjustable amount is obtained by referring to the adjustment amount information of 6. In addition, contract No. 6 is case no. 2, adjustments will be made to raise the planned value. Specifically, the plan adjustment unit 16 determines the contract number. 6 is (+) 120 kWh, and the current variation is 0 kWh. The adjustable amount of 6 is 120 kWh.

Contract no. Contract No. 1 is the reduced price. 6, the plan adjustment unit 16 determines that the contract No. Prioritize the adjustment by contract No. 1. 1 adjustment amount is -30 kWh, contract No. 3 obtains an adjustment result of (+) 70 kWh. In addition, in order to avoid loop-like adjustments, the transaction monitoring unit 17, similarly to the first specific example, checks the contract No. for which the power generator A is the fluctuation absorber. 2 and Contract No. 4 is extracted. 13, similarly to FIG. 12, the adjustment amount information extracted by the transaction monitoring unit 17 is shown as information 302. In FIG. The transaction monitoring unit 17 sets the possible downward fluctuation amount of the extracted adjustment amount information to zero.

Next, the operation of changing the variable amount performed by the transaction monitoring unit 17 in order to avoid loop-like adjustments will be described. FIG. 14 is a diagram for explaining the change operation of the variable amount performed by the transaction monitoring unit 17 of this embodiment. In the example shown in FIG. 14, there are three bilateral contracts indicated by arrows in FIG. 14 among power generator C, retailer a, and retailer f. Specifically, the three bilateral contracts are a contract 401 for retailer a to supply power to power generator C, a contract 402 for power generator C to supply power to retailer f, and a retailer f. contract 403 for f to supply electricity to retailer a; In contract 401, the coordinating kicker is retailer a, in contract 402, the coordinating kicker is power generator C, and in contract 403, the coordinating kicker is retailer f. Also, assume that the planned value in the plan for the next day of contract 402 is 200 kwh, the planned value in the plan for the next day of contract 403 is 100 kwh, and the planned value in the plan for the next day of contract 401 is 100 kwh. In the figure, units of planned values are omitted.

As shown in FIG. 14, after tentative determination of planned values in the plan for the next day, as in (1), a failure occurs in the generator of power generation company C, and power generation company C is in a state of power shortage. As a result, the power generation business operator C uses the business operator device 2 to transmit to the bilateral contract adjustment device 1 a plan adjustment request with a desired adjustment amount of -100 kWh as (2). The bilateral contract adjustment device 1 adjusts the planned value based on this plan adjustment request, and as a result, the contract 402 is selected as an adjustment target and the planned value of the contract 402 is changed to 100 kWh.

FIG. 15 is a diagram showing a state after the planned values shown in FIG. 14 are adjusted. As shown in FIG. 15, the planned value of the contract 402 has been changed to 100 kWh by adjusting the planned value described in FIG. , (3), using the operator device 2, a plan adjustment request with a desired adjustment amount of -100 kWh is transmitted to the bilateral contract adjustment device 1. The bilateral contract adjustment device 1 adjusts the planned value based on this plan adjustment request, and as a result, the contract 403 is selected as an adjustment target and the planned value of the contract 403 is changed to 0 kWh. As a result, the retailer a is in a state of power shortage, and in (4), uses the business operator device 2 to transmit a plan adjustment request with a desired adjustment amount of -100 kWh to the bilateral contract adjustment device 1 .

Here, by receiving the plan adjustment request of (4), the bilateral contract adjustment device 1 reduces the planned value by 100 kWh with the contract 401 as the target of adjusting the planned value. As a result, the power generation company C uses the company device 2 to transmit the plan adjustment request again. That is, in this example, if the planned value of the contract 401 is reduced by 100 kWh, a looped adjustment will be performed. In order to avoid such a loop-like adjustment, in the present embodiment, the transaction monitoring unit 17 changes the variable amount. That is, the transaction monitoring unit 17 corresponds to the direction in which the planned value is adjusted, out of the possible upward fluctuation amount and the downward fluctuation amount of the bilateral contract in which the business operator that has sent the plan adjustment request is the fluctuation absorber. Change the variable amount to 0 kWh.

FIG. 16 is a diagram showing an example of change of the variable amount by the transaction monitoring unit 17 of this embodiment. FIG. 16 is a diagram showing adjustment amount information corresponding to the example shown in FIG. The three contracts shown in FIG. 16 correspond to contracts 401, 402, and 403 in order from the top. FIG. 16 shows the state after the bilateral contract adjustment device 1 has changed the plan value of the contract 401 based on the plan adjustment request of (2) in FIG. Therefore, the amount of fluctuation at the present point in the contract 402 shown in FIG. 14, which is the second contract from the top in FIG. 16, is -100 kWh. The downward variability of contract 401 shown in FIG. 14, which is the first contract from the top of FIG. By unit 17 it is changed to 0 kWh after adjustment of the planned value of contract 402 . As a result, even if the bilateral contract adjustment device 1 subsequently receives a plan adjustment request in which the desired adjustment amount is a negative value from the retailer a, the planned value of the contract 401 is not changed. No adjustment occurs.

Also, if plan adjustment requests are sent unlimitedly and frequently, the plan values will be adjusted frequently, which is undesirable for other business operators. Further, when plan adjustment requests are frequently transmitted, the load on the bilateral contract adjustment device 1 also increases. Therefore, a fee may be provided for sending the plan adjustment request. Also, an upper limit may be set for the number of transmissions of plan adjustment requests for the same 30-minute time slot from one business operator. In addition, if there is a request for an excessive amount of desired adjustment, the effect on other business operators will increase, so a pay-as-you-go fee for the desired amount of adjustment may be provided.

As described above, in the present embodiment, for each bilateral contract, an adjustment kicker and a fluctuation absorber who can request adjustment of the planned value are defined, and the fluctuation absorber changes the planned value. Adjusting conditions including an allowable maximum variable amount and an allowable unit price when changing the planned value are determined in advance. Then, when the bilateral contract adjustment device 1 receives a plan adjustment request requesting a change in the plan value from the operator device 2 corresponding to the adjustment kicker, the desired adjustment amount and the desired unit price included in the plan adjustment request and the adjustment conditions, the bilateral contract to be adjusted is determined, and the adjustment amount for each bilateral contract to be adjusted is obtained. As a result, the bilateral contract adjustment device 1 of the present embodiment can adjust the planned value of the supply and demand amount of the business operator with whom the bilateral contract is concluded, with less effort.

Embodiment 2.
FIG. 17 is a diagram showing a configuration example of a power trading coordination system according to Embodiment 2 of the present invention. The power transaction coordinating system of the present embodiment includes business operator devices 1a-1 to 1a-9, which are power trading coordinating devices according to the present invention. The operator devices 1a-1 to 1a-9 are managed by different operators. The operator devices 1a-1 to 1a-9 are connected via a network 50 in a distributed network system called block chain. The operator devices 1a-1 to 1a-9 have the same configuration, and hereinafter, the operator devices 1a-1 to 1a-9 are referred to as the operator device 1a when they are indicated without being individually distinguished. The business operator's device 1a-1 is connected to the supply and demand management system 3-1, and the business operator's device 1a-2 is connected to the supply and demand management system 3-2. The supply and demand management systems 3-1 and 3-2 are the same as the supply and demand management systems 3-1 and 3-2 of the first embodiment, and are connected to the cross-regional organization system 4. FIG. Note that FIG. 17 shows nine operator apparatuses 1a, but the number of operator apparatuses 1a is not limited to the example shown in FIG.

In Embodiment 1, the bilateral contract adjustment device 1 performs the adjustment processing of the planned values in a central management type. In the present embodiment, the operator device 1a of each operator is used to adjust the planned values by distributed processing. Hereinafter, constituent elements having the same functions as those of the first embodiment are assigned the same reference numerals as those of the first embodiment, and overlapping descriptions are omitted.

FIG. 18 is a diagram showing a configuration example of the business operator apparatus 1a according to the present embodiment. As shown in FIG. 18, the provider device 1a of the present embodiment includes a communication unit 11, a storage unit 14, a plan adjustment unit 16, a transaction monitoring unit 17, a result output unit 18, a wide area machine related unit 19, and a plan creation unit. 22 , a plan checking unit 23 , an adjustment condition management unit 24 , an adjustment request generation unit 25 , a display unit 26 and an information propagation unit 27 . The communication unit 11, the storage unit 14, the plan adjustment unit 16, the transaction monitoring unit 17, the result output unit 18, and the wide area device related unit 19 of the business operator device 1a are the same as the corresponding components of the bilateral contract adjustment device 1. . However, the communication partner of the communication unit 11 and part of the processing performed by them are different from those in the first embodiment. Plan creation unit 22, plan check unit 23, adjustment condition management unit 24, adjustment request generation unit 25, and display unit 26 of provider device 1a are the same as corresponding components of provider device 2 of the first embodiment. be. Differences from the first embodiment will be mainly described below, and descriptions that overlap with the first embodiment will be omitted. As described above, the business operator device 1a of the present embodiment generally has both the functions of the business operator device 2 and the bilateral contract adjustment device 1 of the first embodiment.

The information propagation unit 27 uses the block chain method to notify the communication unit 11 of the change when the information used in the adjustment processing of the planned value and the content of the adjustment processing of the planned value are changed in the operator device 1a. to another provider device 1a. As described above, in the present embodiment, information used in adjustment processing is shared among a plurality of business operator devices 1a by the blockchain method. Further, when receiving the change contents from the other provider apparatus 1a via the communication unit 11, it determines whether or not to approve the change contents according to a predetermined procedure. is reflected in the storage unit 14 . The transmission destination of the change content, the processing for preventing falsification, the approval processing when the change content is received from the other business operator device 1a, etc. are determined in advance between the business operator devices 1a.

The contract basic information, planned value information, adjustment condition information, and adjustment amount information for each bilateral contract in this embodiment are the same as in Embodiment 1, but in this embodiment, the operator apparatus 1a is managed. The information about the business is generated in the business device 1a and stored in the storage unit 14. FIG. Then, if any of the information stored in the storage unit 14, such as the contract basic information, the planned value information, the adjustment condition information, and the adjustment amount information, is updated, the information propagation unit 27 transmits the updated information to another By transmitting the information to the business operator's device 1a via the communication unit 11, the information is shared between the business operator's devices 1a constituting the power transaction coordination system. Also, when the program for processing in the operator apparatus 1a is changed, the information propagation unit 27 similarly transmits the changed contents to the other operator apparatus 1a in order to supply the changed contents of the program. do. Since the method of sharing information can use the method of sharing information in blockchain, detailed description is omitted.

Among the operations of the power trading coordination system, processing up to provisional determination of planned values for the next day will be described. In the present embodiment, the operator device 1a of the plan registrant implements step S1 shown in FIG. 5, similarly to the operator device 2 of the plan checker in the first embodiment. In this embodiment, in steps S2 and S3, the plan creation unit 22 of the business operator apparatus 1a reflects the created plan in the plan value information of the storage unit 14 instead of transmitting it to the bilateral contract adjustment apparatus 1. FIG. Further, as described above, when the planned value information in the storage unit 14 is updated, the information propagation unit 27 transmits the updated information to the other business operator device 1a via the communication unit 11 .

Further, in the present embodiment, the operator device 1a of the plan checker refers to the plan value information in the storage unit 14 in step S4. Then, the business operator device 1a of the plan checker performs step S5 shown in FIG. After that, instead of steps S6 and S7 in the first embodiment, the plan check unit 23 of the operator device 1a of the plan checker performs the plan check, and when correcting the plan value, The correction is directly reflected in the planned value information in the storage unit 14 . As described above, when the planned value information in the storage unit 14 is updated, the information propagation unit 27 transmits the updated information to the other business operator device 1a via the communication unit 11 .

Next, the process of adjusting the planned values after the tentative planned values are determined will be described. In the present embodiment, the adjustment condition management unit 24 stores, in the adjustment condition information of the storage unit 14, the adjustment conditions related to the bilateral contract in which the operator device 1a provided with the adjustment condition management unit 24 is the change absorber. As for the basic contract information, the business operator device 1a of the party to the bilateral contract stores the basic contract information of the corresponding bilateral contract in the storage unit 14 . As described above, when the adjustment condition information and basic contract information in the storage unit 14 are updated, the information propagation unit 27 transmits the updated information to the other business operator device 1a via the communication unit 11 . In this way, the adjustment condition information and the contract basic information are shared by all the provider's devices 1a. As in the first embodiment, access rights to each information are set so that only parties to the bilateral contract can view and edit the information.

The operation of the plan adjustment unit 16 of this embodiment is the same as that of the plan adjustment unit 16 of the first embodiment. However, in the present embodiment, after generating the plan adjustment request, adjustment request generator 25 transmits the plan adjustment request to plan adjuster 16 . When the plan adjustment request is received from the adjustment request generation unit 25, the plan adjustment unit 16 performs the same operation as when the plan adjustment request is received in step S11 shown in FIG. Alternatively, the plan adjustment unit 16 may transmit the received plan adjustment request to the other operator device 1a via the storage unit 14, the information propagation unit 27 and the communication unit 11. FIG. Further, when the plan adjustment unit 16 receives a plan adjustment request from another provider device 1a via the communication unit 11, the information propagation unit 27 and the storage unit 14, the plan adjustment unit 16 performs the same take action. Further, as in the first embodiment, the adjustment processing of the plan value may be performed each time a plan adjustment request is received, or the processing corresponding to the plan adjustment request received during a given period may be performed at regular intervals. good too.

The business operator device 1a of the present embodiment is realized by a computer system, like the bilateral contract adjustment device 1 and the business operator device 2 of the first embodiment. The business operator device 1a is realized by, for example, the computer system shown in FIG. 3, like the bilateral contract adjustment device 1. Business operator device 1a of the present embodiment functions as business operator device 1a by executing a program describing processing in business operator device 1a on the computer system. The operation of the computer system until the program becomes executable is the same as that of the bilateral contract adjustment apparatus 1 of the first embodiment.

Operations of the present embodiment other than those described above are the same as those of the first embodiment. In the present embodiment, the block chain configured by the business operator device 1a of each business operator is used to adjust the planned value. Thereby, the same effects as in the first embodiment can be obtained. In addition, in Embodiment 1, since the bilateral contract adjustment device 1 adjusts the plan value by the central management method, when the bilateral contract adjustment device 1 is managed by a certain business operator, this business operator Even if the contents of the adjustment processing of the planned values in the contract adjustment device 1 are changed, other business operators will not know. For this reason, there is a possibility that fairness cannot be maintained, but in the present embodiment, fairness can be ensured because all the provider apparatuses 1a can perform the same processing.

In the examples of the first and second embodiments described above, the fluctuation absorber determines the adjustment conditions for each bilateral contract. The adjustment condition is not limited to this, and may be determined for each business operator. In other words, each business operator may set the increase price, decrease price, increase changeable amount, and decrease changeable amount as common values regardless of the bilateral contract. In this case, the adjustment condition information shown in FIG. 8 is made up of information for each business operator, not for each bilateral contract. Therefore, the adjustment condition information is defined for each business operator, and includes a variable amount that indicates the amount of change in the planned value from the temporary fixed value that the business operator can accept, and a change in the planned value from the temporary fixed value. and a first price, which is a unit price of electric power that changes due to a change and indicates a unit price that can be accepted by the business operator.

For example, power generation company A concludes a bilateral contract with retailer a and a bilateral contract with retailer b. In these two bilateral contracts, assuming that the power generation company A is set as the fluctuation absorber, the plan adjustment unit 16, when determining the bilateral contract to be adjusted, makes a common adjustment corresponding to the power generation company A. By referring to the conditions, the same processing as in the first and second embodiments is performed. That is, the plan adjustment unit 16 adjusts based on the first price and the possible fluctuation amount in the adjustment condition information of the fluctuation absorber, who is the second business operator, and the second price and the desired adjustment amount in the plan adjustment request. process. Specifically, for example, when generating the adjustment amount information shown in FIG. store in As a result, subsequent operations can be the same as those in the first and second embodiments. By setting adjustment conditions for each business operator in this way, each business operator does not need to set adjustment conditions for each bilateral contract, and man-hours for registration and management at each business operator can be reduced.

The configuration shown in the above embodiment shows an example of the content of the present invention, and it is possible to combine it with another known technology, and one configuration can be used without departing from the scope of the present invention. It is also possible to omit or change the part.

1 bilateral contract adjustment device, 1a, 1a-1 to 1a-9, 2, 2-1 to 2-3 operator device, 3-1, 3-2 supply and demand management system, 4 cross-regional agency system, 11, 21 communication unit , 12 planned value registration unit, 13 adjustment condition registration unit, 14 storage unit, 15 check result reflection unit, 16 plan adjustment unit, 17 transaction monitoring unit, 18 result output unit, 19 wide area machine related unit, 22 plan creation unit, 23 Plan check unit 24 adjustment condition management unit 25 adjustment request generation unit 26 display unit 27 information propagation unit.

Claims (13)

For each bilateral contract for power supply concluded between two business operators, the planned value of the amount of power to be supplied based on the bilateral contract is changed from the tentative fixed value agreed between the two business operators. a storage unit that stores adjustment condition information indicating adjustment conditions for performing adjustment;
receiving a plan adjustment request indicating that one of the two operators requests adjustment for changing the planned value from the tentative fixed value, and receiving the plan adjustment request and the adjustment condition; a plan adjustment unit that performs an adjustment process for determining the bilateral contract to be adjusted for the planned value and an adjustment amount that is an amount by which the planned value is changed, based on the information;
with
The power transaction coordinating apparatus, wherein the plan adjustment request includes a desired adjustment amount indicating an amount of change in the planned value that the one business operator wishes to adjust. 2. The power transaction coordinating apparatus according to claim 1, wherein said plan adjusting unit performs said adjusting process each time said plan adjusting request is received. The plan adjustment unit determines at regular intervals whether or not one or more of the plan adjustment requests have been received within the certain period of time, and when it is determined that one or more of the plan adjustment requests have been received, 2. The power trading coordinator according to claim 1, wherein said adjustment processing corresponding to one or more said plan adjustment requests received within said fixed period is continuously performed. One of the two business operators that concludes the bilateral contract is the first business operator that transmits the plan adjustment request, and the other of the two business operators is the second business operator that determines the adjustment conditions. and which of the two operators is the first operator is determined for each bilateral contract,
The adjustment condition information includes a changeable amount indicating an amount of change of the planned value from the provisional fixed value acceptable to the second business operator, and a change of the planned value from the provisional fixed value a first price that indicates a unit price of the generated and changing amount of power that is acceptable to the second operator;
The plan adjustment request is a unit price of electric energy that changes due to the change of the planned value from the tentative fixed value, and indicates a unit price desired by a business operator who requested the plan adjustment request. price, including
2. The power transaction coordinator according to claim 1, wherein said plan adjustment unit performs said adjustment processing based on said first price, said second price, said desired adjustment amount, and said variable amount. . The adjustment condition information is determined for each business operator, and includes a variable amount indicating a change amount of the planned value from the temporary fixed value acceptable by the business operator, and a change amount of the planned value to the temporary fixed value. a first price that is a unit price of electric energy that changes due to a change from the value and that indicates a unit price acceptable to the business operator;
One of the two business operators that concludes the bilateral contract is the first business operator that transmits the plan adjustment request, the other of the two business operators is the second business operator, and Each contract stipulates which of the two operators is the first operator,
The plan adjustment request is a unit price of electric energy that changes due to the change of the planned value from the tentative fixed value, and indicates a unit price desired by a business operator who requested the plan adjustment request. price, including
The plan adjustment unit performs the adjustment process based on the first price and the variable amount, and the second price and the desired adjustment amount in the adjustment condition information of the second business operator. The power transaction coordinator according to claim 1, characterized by: After the adjustment process is performed, the variable amount corresponding to the bilateral contract is determined in advance in which the business operator requesting the plan adjustment request corresponding to the adjustment process is defined as the second business operator. the transaction monitor, which sets the
6. The power trading coordinator according to claim 4 or 5, comprising: The storage unit stores, for each bilateral contract, a current variation amount indicating a current accumulated value of the adjustment amount changed from the provisional fixed value by the adjustment process,
The plan adjustment unit performs the adjustment process based on the first price, the second price, the desired adjustment amount, the variable amount, and the current variation amount, and outputs the result of the adjustment process to the 7. The power trading coordinator according to any one of claims 4 to 6, wherein the amount of fluctuation at the present time is reflected. The desired adjustment amount is a positive value when the business operator requesting the plan adjustment request requests a change due to surplus power. a negative value to request a change due to lack of
When the desired adjustment amount is a positive value, the plan adjustment unit prioritizes, in descending order of the first price, among the bilateral contracts in which the first price is equal to or higher than the second price When it is determined to be an adjustment target and the desired adjustment amount is a negative value, the bilateral contract with the first price equal to or lower than the second price is prioritized in order from the one with the lowest first price Decide on an adjustment target,
The power transaction coordinator according to claim 7, characterized by: The first price includes an increase price applied when adjusting the planned value upward and a decrease price applied when adjusting the planned value downward,
The plan coordination department
When the desired adjustment amount is a positive value, the increase price of the first price is referred to for the bilateral contract in which the business operator requesting the plan adjustment request is the power supply source, and the plan With regard to the bilateral contract to which the business operator requesting the adjustment request is the power supply destination, the reduced price among the first prices is referred to, and the bilateral contract is determined such that the first price is the second price or more. Prioritizing the contract with the highest first price in descending order as the adjustment target,
When the desired adjustment amount is a negative value, with respect to the bilateral contract in which the business operator requesting the plan adjustment request is the power supply source, the reduced price among the first prices is referred to, and the plan With regard to the bilateral contract to which the business operator requesting the adjustment request is the power supply destination, the raised price of the first price is referred to, and the first price is equal to or lower than the second price. Prioritizing one of the contracts with the lowest first price in descending order to determine the adjustment target;
The power transaction coordinator according to claim 8, characterized by: If the business whose planned values are changed by the adjustment process is a business operator having a supply and demand management system that transmits the planned values to a plan management system that manages the planned values, the adjustment process is performed to the supply and demand management system. 10. The power trading coordinator according to any one of claims 1 to 9, wherein the change in the planned value caused by the change is notified. a plurality of operator devices each managed by a different operator;
a power trading coordinator;
with
The operator's device managed by one of the two operators that concludes a bilateral contract for the supply of electric power divides the planned value of the amount of power to be supplied based on the bilateral contract into two corresponding to the bilateral contract. Sending a plan adjustment request indicating a request for adjustment to change from the tentative fixed value agreed between the operators,
The plan adjustment request includes a desired adjustment amount indicating an amount desired to be changed,
The power trading coordinator,
A storage unit that stores adjustment condition information indicating adjustment conditions for performing adjustment for changing the planned value of the amount of power supplied based on the bilateral contract from the tentative fixed value for each bilateral contract;
It is an amount by which the bilateral contract subject to adjustment of the planned value and the planned value are changed based on the received plan adjustment request and the adjustment condition information. a plan adjustment unit that performs an adjustment process that determines an adjustment amount;
A power trading coordination system, comprising: Equipped with multiple power trading devices, each managed by a different operator,
Each of the plurality of power trading devices,
For each bilateral contract for power supply concluded between two business operators, the planned value of the amount of power to be supplied based on the bilateral contract is changed from the tentative fixed value agreed between the two business operators. a storage unit that stores adjustment condition information indicating adjustment conditions for performing adjustment;
receiving a plan adjustment request indicating that one of the two operators requests adjustment for changing the planned value from the tentative fixed value, and receiving the plan adjustment request and the adjustment condition; a plan adjustment unit that performs an adjustment process for determining the bilateral contract to be adjusted for the planned value and an adjustment amount that is an amount by which the planned value is changed, based on the information;
with
The plan adjustment request includes a desired adjustment amount indicating a change amount of the plan value desired by the one operator,
An electric power transaction adjustment system, wherein information used in the adjustment process is shared among the plurality of electric power transaction devices by a blockchain system. A power trading coordinator
For each bilateral contract for power supply concluded between two business operators, the planned value of the amount of power to be supplied based on the bilateral contract is changed from the tentative fixed value agreed between the two business operators. a storage step of storing adjustment condition information indicating adjustment conditions for making adjustments;
receiving a plan adjustment request indicating that one of the two operators requests adjustment for changing the planned value from the tentative fixed value, and receiving the plan adjustment request and the adjustment condition; a plan adjustment step of performing an adjustment process for determining the bilateral contract to be adjusted for the planned value and an adjustment amount that is an amount by which the planned value is changed, based on the information;
including
The power transaction adjustment method, wherein the plan adjustment request includes a desired adjustment amount indicating an amount of change in the plan value desired by the one business operator.

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