Electricity supply and demand adjustment system, electricity supply and demand adjustment method

Abstract

To perform supply and demand adjustment of power more accurately than before.SOLUTION: A power supply and demand adjustment system for performing supply and demand adjustment of power by controlling power consumption by a plurality of users following an instruction of an aggregator using a computer including a processor and a memory. The processor performs the supply and demand adjustment of power by, on the basis of both information being stored in the memory of planned DR (Demand Response) event information containing an event associated with supply and demand adjustment of power and user profile information indicating characteristics of time-shift enabled steps performed by consuming power at the users, shifting steps in an acceptable range to determine a combination of steps for a power reduction amount satisfying a required adjustment amount; generates DR request information including a request for supply and demand adjustment of power of an adjustment amount determined in the planned DR event, for each of the plurality of users; and determines a width to be shifted, on the basis of DR response information including a response on a step associated with a time-shift obtained from each user, for the generated DR request information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an electric power supply and demand adjustment system and an electric power supply and demand adjustment method. [Background technology]

[0002] In the past, the adjustment capacity of electricity generated by multiple consumers, including small and medium-sized factories, has been aggregated to adjust supply and demand for electricity. For example, based on hourly power consumption information obtained from consumers, the amount of consumption reduction requested during the DR (Demand Response) time slot is determined, and the adjustment capacity obtained through the consumption reduction is aggregated and supplied to the DR source. Specifically, in response to a supply and demand adjustment request for adjusting time slots or power received from a contracted party such as an electric power utility, an aggregator responsible for aggregating and managing adjustment capacity collects negawatts from multiple consumers, provides them to the contracted party, and receives payment for the aggregator. DR refers to a process in which the owner or a third party of a consumer's energy resource controls the energy resource to change the electricity demand pattern. An example of such a technology is described in Patent Document 1. In Patent Document 1, information for selecting consumers to be aggregated is defined in advance, and participants in a DR event that occurs are dynamically aggregated based on the definition. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] US2017-093155 publication Summary of the Invention [Problem to be solved by the invention]

[0004] Negawatts are generated by shutting down or operating facilities during certain time periods, changing operating hours or moving those hours, and controlling the operating status of energy plants and storage facilities. Negawatts are apparent generated power obtained by reducing electricity consumption by consumers, and negawatt trading is a transaction that provides incentives according to the amount of generated power supplied, but with conventional methods, there have been cases where it has not been possible to collect the amount of electricity adjustment requested by the source of demand response.

[0005] Specifically, some consumers have been unable to reduce power consumption throughout the entire DR time period (e.g., several hours). This is often due to discontinuous processes involving manual intervention (e.g., assembly, painting, etc.), product delivery issues, inventory issues, and other factors that make it impossible to respond to supply-demand adjustment requests on the relevant dates and times. However, prior art has not established a method for dealing with such consumers. While Patent Document 1 defines information for selecting consumers to be aggregated, it assumes that DR events are applied simultaneously to all defined consumers. Therefore, consumers that are only available during certain time periods cannot be integrated as resources eligible for adjustment. This situation occurs more frequently as the number of consumers participating in aggregation increases, resulting in the problem of exceeding the allowable range for power supply-demand adjustment. Furthermore, this problem can occur not only in negawatt trading but also in posiwatt trading.

[0006] An object of the present invention is to provide a technique that can adjust the supply and demand of electric power more accurately than conventional techniques. [Means for solving the problem]

[0007] The electricity supply and demand adjustment system of the present invention is an electricity supply and demand adjustment system that adjusts the supply and demand of electricity by having multiple consumers control their power consumption in accordance with instructions from an aggregator using a computer having a processor and memory, wherein the processor determines a combination of processes that will satisfy the requested adjustment amount for power reduction by shifting the processes within an allowable range based on DR (Demand Response) event information stored in the memory, the combination including events related to planned electricity supply and demand adjustment, and consumer profile information, which is information indicating characteristics of processes that consume electricity at the consumers and can be shifted in time; generates DR request information for each of the multiple consumers, the DR request information including a request for adjusting the supply and demand of electricity for the adjustment amount specified in the planned DR event; determines the amount of the shift based on DR response information, the DR response information including responses from each consumer to the generated DR request information regarding the processes related to the time shift, and adjusts the electricity supply and demand. [Effects of the Invention]

[0008] According to the present invention, it is possible to adjust the supply and demand of electric power more accurately than in the past. Problems, configurations, and effects other than those described above will become apparent from the following description of the preferred embodiments of the present invention. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a diagram illustrating an example of the configuration of a power supply and demand adjustment system according to an embodiment of the present invention. [Figure 2] FIG. 1 is a diagram illustrating an example of a schematic configuration of a computer. [Figure 3] FIG. 10 is a diagram illustrating an example of DR event list information. [Figure 4] FIG. 10 is a diagram illustrating an example of DR request list information. [Figure 5] FIG. 10 is a diagram illustrating an example of DR response list information. [Figure 6] FIG. 2 is a diagram illustrating an example of customer priority information. [Figure 7]FIG. 10 is a diagram illustrating an example of consumer evaluation policy information. [Figure 8] FIG. 2 is a diagram illustrating an example of customer profile information. [Figure 9] 3 is a flowchart showing the procedure of a process (power supply and demand adjustment process) performed in the present system. [Figure 10] FIG. 10 is a diagram showing an example of a power supply and demand adjustment screen (aggregator side) output by the aggregator system. [Figure 11] FIG. 10 is a diagram showing an example of a power supply and demand adjustment screen (consumer side) output by a consumer's computer. [Figure 12] FIG. 1 is an image diagram for explaining the adjustment of power supply and demand performed by each consumer. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The following description and drawings are examples for explaining the present invention, and some omissions and simplifications have been made as appropriate for clarity of explanation. The present invention can be implemented in various other forms. Unless otherwise specified, each component may be singular or plural.

[0011] In order to facilitate understanding of the invention, the position, size, shape, range, etc. of each component shown in the drawings may not represent the actual position, size, shape, range, etc. Therefore, the present invention is not necessarily limited to the position, size, shape, range, etc. disclosed in the drawings.

[0012] In the following explanation, various types of information may be described using expressions such as "database," "table," and "list," but the various types of information may also be expressed in data structures other than these. To indicate that the information is not dependent on the data structure, "XX table," "XX list," etc. may be referred to as "XX information." When describing identification information, expressions such as "identification information," "identifier," "name," "ID," and "number" are used, and these are interchangeable.

[0013] When there are multiple components with the same or similar functions, they may be described using the same reference numeral with different subscripts. However, when there is no need to distinguish between these multiple components, the subscripts may be omitted.

[0014] Furthermore, in the following description, processing performed by executing a program may be described, but the program is executed by a processor (e.g., a CPU or a GPU (Graphics Processing Unit)) to perform the specified processing while appropriately using storage resources (e.g., memory) and / or interface devices (e.g., communication ports), and therefore the processor may be the subject of the processing. Similarly, the subject of the processing performed by executing a program may be a controller, device, system, computer, or node having a processor. The subject of the processing performed by executing a program may be any computing unit, and may include a dedicated circuit (e.g., an FPGA (Field-Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit)) that performs specific processing.

[0015] A program may be installed on a device such as a computer from a program source. The program source may be, for example, a program distribution server or a computer-readable storage medium. If the program source is a program distribution server, the program distribution server may include a processor and storage resources for storing the program to be distributed, and the processor of the program distribution server may distribute the program to be distributed to other computers. Also, in the following description, two or more programs may be realized as one program, and one program may be realized as two or more programs.

[0016] An embodiment of a power supply and demand adjustment system and a power supply and demand adjustment method according to the present invention will be described below.

[0017] FIG. 1 is a diagram illustrating an example of the configuration of an electricity supply and demand adjustment system according to this embodiment. As illustrated in FIG. 1, the electricity supply and demand adjustment system 1000 is owned by an aggregator responsible for aggregating and managing electricity adjustment capacity. The aggregator system 100 generates a DR request for a consumer to satisfy a DR event using a new DR event received from a DR contract owner 300, which is constituted by an electric power company or the like, and a consumer profile received from the consumer 200. The aggregator system 100 readjusts the electricity supply and demand based on the amount of electricity supply and demand adjustment obtained from the DR response to the DR request. The consumer 200 responds to the DR request received from the aggregator system 100 via a network N. The network N is a general communication line, and may be wired or wireless. The aggregator system 100 is connected to an aggregator management terminal 100T operated by an administrator who manages the system. The consumer 200 is connected to a consumer management terminal 200T operated by an administrator who manages the consumer.

[0018] Specifically, as will be described later, the aggregator system 100 receives a message requesting a new DR event from the DR contractor 300 and registers the DR event in a DR event list. The DR request adjustment program 109 creates a consumer profile including information on the process in the production line of the factory of the consumer 200, the equipment used in the process, the power consumption of the equipment, the planned time for the process, and the maximum time that the process can be shifted. information Based on 106, the DR request adjustment program 109 calculates the amount of power that each consumer can reduce during part or all of the time period targeted by the DR event. Furthermore, the DR request adjustment program 109 integrates the calculated amount of power that each consumer can reduce, generates a DR request for each consumer that satisfies the amount of supply and demand adjustment required in the DR event as a DR request list, sends it to each consumer, and registers the DR responses received from each consumer in response to the DR request in the DR response list.

[0019] If the sum of the available supply and demand adjustment amounts included in the DR responses received from each consumer does not satisfy the total request value of the DR event, the DR request adjustment program 109 adjusts the DR requests, generates a new DR request list, and sends it to each consumer based on the readjustment priority defined in the consumer priority information 104 and the contents of the consumer profile information 106. The aggregator system 100 repeatedly performs such adjustments.

[0020] DR request execution program 110 Based on the contents of the confirmed DR request list that has satisfied the total request value of the DR event, the program issues instructions to each consumer to execute the DR request, integrates the obtained supply and demand adjustment amount, and provides the integrated supply and demand adjustment amount to the DR contract owner 300 as the power supply and demand adjustment amount. 110 After DR is executed by the DR contractor 300, the consumer priority information 104 is updated based on the consumer evaluation policy information 105 according to the degree of fulfillment of the requirements for each consumer 200. In this embodiment, a case where the consumer is a factory is exemplified, but the consumer may include various businesses such as companies and organizations, and individuals who receive and use the supply of power, and the number of consumers 200 is arbitrary.

[0021] In the following, the aggregator system 100, the customer 200, and the DR contractor 300 are each configured by a single computer, but all or part of these functions may be distributed across one or more computers that communicate with each other via a network to achieve the same functions. Specific explanations of the data and processing used in this system will be given later.

[0022] The aggregator system 100, the consumer 200, and the DR contractor 300 can be realized by, for example, a general server or computer 2001, as shown in Fig. 2 (schematic diagram of a computer), which includes a CPU 2002, a memory 2003, an external storage device 2004 such as an HDD (Hard Disk Drive), an external medium output device 2007 for reading and writing information from and to a portable storage medium such as a CD (Compact Disk) or a USB memory, an input device 2006 such as a keyboard or a mouse, an output device 2005 such as a display, and a network communication device 2008 such as an NIC (Network Interface Card) for connecting to a communication network. Similarly, the aggregator management terminal 100T and the consumer management terminal 200T can also be realized by the above-mentioned computers.

[0023] Furthermore, various data stored in this system or used for processing can be read and used by the CPU 2002 from the memory 2003 or the external storage device 2004. 100 Each functional unit (for example, a communication program 108, a DR request adjustment program 109, and a DR request execution program 110, which will be described later) of the system can be realized by the CPU 2002 loading a predetermined program stored in the external storage device 2004 into the memory 2003 and executing it.

[0024] The above-mentioned predetermined program may be stored (downloaded) into the external storage device 2004 from a storage medium via the external medium output device 2007 or from a network via the network communication device 2008, and then loaded onto the memory 2003 and executed by the CPU 2002. Alternatively, the program may be directly loaded onto the memory 2003 from a storage medium via the external medium output device 2007 or from a network via the network communication device 2008, and executed by the CPU 2002.

[0025] 1, the aggregator system 100 includes DR event list information 101, DR request list information 102, DR response list information 103, consumer priority information 104, consumer evaluation policy information 105, consumer profile information 106, a DR request adjustment I / F (interface) 107, a communication program 108, a DR request adjustment program 109, and a DR request execution program 110. First, the DR event list information 101 will be described.

[0026] The DR event list information 101 is information that indicates events related to the adjustment of power supply and demand planned by the DR contractor 300. The DR event list information 101 is determined by the DR contractor 300 in advance.

[0027] Fig. 3 is a diagram showing an example of the DR event list information 101. As shown in Fig. 3, the DR event list information 101 stores a DR event list 301, which represents DR events defined by a DR contractor 300 in a list format, and a DR event 302, which indicates specific details of each DR event included in the DR event list 301, in association with each other.

[0028] For example, "December 2022 supply and demand adjustment event" is stored as "DR event 1" in the DR event list 301, "December 1, 2022, 00:00:00" is stored as the "start date and time" of the DR event 302, and "December 7, 2022, 00:00:00" is stored as the "end date and time", and an event to adjust power of "2000 kW" as the "adjustment amount" for one week of the period is stored in the DR event list information 101. Next, the DR request list information 102 will be described.

[0029] The DR request list information 102 is information representing a request for adjusting the supply and demand of power of an adjustment amount set for a DR event planned in the DR event information. The DR request list information 102 is generated by a DR request adjustment program 109.

[0030] Fig. 4 is a diagram showing an example of the DR request list information 102. As shown in Fig. 4, the DR request list information 102 stores a DR request list 401 that represents DR requests corresponding to DR events in a list format, a DR request 402 that represents each DR request included in the DR request list 401 for each consumer, a consumer-specific request 403 that indicates specific details about each consumer included in the DR request 402, a shift item list 404 that represents shiftable processes included in the consumer-specific request 403 in a list format, and a shift item 405 that indicates specific details about each shift item included in the shift item list 404, all of which are associated with each other.

[0031] For example, "Customer-Specific Request 1" is defined as "DR Request 1" in the DR request list 401, and for a customer (e.g., Factory A) whose "Customer ID" is "0001," the "Customer-Specific Request 1" requests that the supply and demand of electricity be adjusted by shifting a process (e.g., the assembly process of part A) whose "Process ID" is "P001" and which is a shiftable process in "Shift Item 1" included in the "Shift Item List." A shift refers to, for example, changing the time period for a certain process that was originally planned to be performed to another time period, or shortening the time for that process. In other words, it refers to reducing the demand for electricity by shifting a process that was originally planned to be performed in a certain time period to another time period with the same amount of power consumption, or by shortening the time period with the same amount of power consumption. Therefore, for example, when shifting the process "P001" above, the time period initially planned represented by the "Schedule ID" (the time period from the "Start Time" of "15:00:00" to the "End Time" of "16:00:00") is shortened to the time period from the "Start Time" of "15:00:00" to the "End Time" of "15:30:00" (shortened by 30 minutes in this case), and a power reduction of "100 kW" is requested as the partial adjustment amount, which is the amount of power adjustment for the process. In this way, the DR request list information 102 stores information specifying requests for each consumer regarding the amount of power adjustment for each process. Next, the DR response list information 103 will be described.

[0032] The DR response list information 103 is information representing responses obtained from the consumers to the requests indicated in the above-mentioned DR request list information 102. management It is input from the terminal 200T and is held in this system.

[0033] FIG. 5 is a diagram illustrating an example of the DR response list information 103. As illustrated in FIG. 5, the DR response list information 103 stores a DR response list 501, which lists responses to a DR request; a DR response 502, which lists each DR response included in the DR response list 501 for each consumer; a consumer-specific response 503, which indicates specific details about each consumer included in the DR response 502; a shift item list 504, which lists shiftable processes included in the consumer-specific response 503; and a shift item 505, which indicates specific details about each shift item included in the shift item list 504. Each of these items is the same as the DR request list 401 shown in FIG. 4 with "demand" replaced with "response," and therefore a description thereof will be omitted here. However, for each item, information about responses from consumers corresponding to requests in the DR request list information 102 is stored. Next, the consumer priority information 104 will be described.

[0034] The consumer priority information 104 is information that defines the priority of consumers who are to be subjected to power supply and demand adjustment. management It is input from terminal 100T.

[0035] 6 is a diagram showing an example of the customer priority information 104. As shown in FIG. 6, the customer priority information 104 is separate request 403 and consumers Another response A customer list 601, which lists customer IDs similar to the customer IDs included in 503, and customer priorities 602, which indicate the priority of each customer included in the customer list 601, are stored in association with each other.

[0036] For example, for a consumer whose "consumer ID" is "0001" as "consumer 1" in the consumer priority information 104, the "adjustment priority" and "readjustment priority" are set to the highest value of "1." Next, the consumer evaluation policy information 105 will be described.

[0037] The consumer evaluation policy information 105 is information indicating how to determine the consumer priority 602 stored in the consumer priority information 104. The consumer evaluation policy information 105 is used by the aggregator in the aggregator system 100. management It is input from the terminal 100T and is held in this system.

[0038] Fig. 7 is a diagram showing an example of the consumer evaluation policy information 105. As shown in Fig. 7, the consumer evaluation policy information 105 stores a calculation formula that serves as a condition 701 for calculating the above-mentioned consumer priority.

[0039] 7 shows that the customer priority is determined by the formula "(accumulated actual adjustment time / accumulated planned adjustment time) x time coefficient + (actual adjustment kW value / planned adjustment kW value) x power coefficient", which is a calculation condition. Next, the customer profile information 106 will be described.

[0040] The customer profile information 106 is information indicating the characteristics of the process performed by the customer 200 while consuming electric power. management It is input from the terminal 200T and is held in this system.

[0041] Fig. 8 is a diagram showing an example of consumer profile information 106. As shown in Fig. 8, consumer profile information 106 stores a consumer list 801 similar to consumer 601 described above, a line list 802 which lists production lines which are an example of equipment that consumes power and are installed in consumers defined in the consumer list, a process list 803 which lists processes performed using line 802, processes 804 included in the process list, a schedule 805 in which the processes are performed, a device list 806 which is a list of devices included in the process 804, time period information 807 of each schedule included in schedule 805, and devices 808 which indicate the power consumption of each device included in device list 806.

[0042] For example, FIG. 8 shows that for "Customer 1" included in customer list 801 (e.g., a customer with a "Customer ID" of "0001" (e.g., Factory A)), the line list stored as the customer's production lines includes multiple lines, "Line 1," "Line 2," .... Furthermore, for the production line identified by "Line 1," a certain process "Process 1" included in process list 803 is performed multiple times, and the "first" of these processes is scheduled, for example, to have a planned start time of "00:00:00 every day" and a planned end time of "00:30:00 every day." Furthermore, it shows that for "Process 1," the earliest possible start time is "23:50:00 the previous day," i.e., 10 minutes earlier than the planned start time, and the latest possible start time is "00:10:00 the current day," i.e., 10 minutes later than the planned start time.

[0043] Similarly, the "process 1" indicates that the earliest possible end time is "00:20:00 on the current day," i.e., a shift that ends 10 minutes earlier than the planned end time, and the latest possible end time is "00:40:00 on the current day," i.e., a shift that ends 10 minutes later than the planned end time. Furthermore, for example, the power consumption of "device 1," one of the devices used in the "process 1," is stored as "50 kW." In this way, the consumer profile information 106 defines, as a consumer profile, the planned time periods (planned start time, planned end time, earliest start time, latest start time, earliest end time, latest end time) for each process, including the time periods indicating the allowable shift range, and the power consumption for each process. Next, returning to FIG. 1, each component from the DR request adjustment I / F 107 onward will be described.

[0044] The DR request adjustment I / F 107 is an interface for receiving information input from the aggregator management terminal 100T, or for outputting information processed by the aggregator system 100 to the aggregator management terminal 100T.

[0045] The communication program 108 is a program for transmitting information processed by the aggregator system 100 to the DR contractor 300 or the consumer 200, or for receiving information input from the DR contractor 300 or the consumer 200.

[0046] The DR request adjustment program 109 registers a new DR event included in a message received from the DR contractor 300 in a DR event list, and calculates the power that each consumer can reduce during part or all of the time period targeted by the DR event based on the consumer profile information 106. The DR request adjustment program 109 also integrates the power that each consumer can reduce, generates a DR request list for each consumer that satisfies the supply and demand adjustment amount requested in the DR event, and sends this to each consumer, and registers the DR responses received from each consumer in response to the DR request in a DR response list. Furthermore, if the sum of the available supply and demand adjustment amounts included in the DR responses received from each consumer does not satisfy the total requested value of the DR event, the DR request adjustment program 109 adjusts the DR request based on the consumer priority information 104 and the consumer profile information 106, and generates a new DR request list and sends this to each consumer.

[0047] The DR request execution program 110 issues instructions to execute DR requests to each consumer based on the contents of the DR request list that satisfy the total request value of the DR event, integrates the supply and demand adjustment amount obtained, and provides the integrated supply and demand adjustment amount to the DR contract owner 300 as the power supply and demand adjustment amount. After DR is executed by the DR contract owner 300, the DR request execution program 110 updates the consumer priority information 104 based on the consumer evaluation policy information 105 according to the degree of request fulfillment for each consumer 200. Next, the consumer 200 will be described.

[0048] Consumer 200 is a business entity such as a company or organization, or an individual that consumes electricity, for example, Factory A owned by Company B. Although not specifically shown in Fig. 1, the factory is equipped with various pieces of equipment that consume electricity, and for example, a computer in the factory retrieves various data from these pieces of equipment, including power consumption by time period.

[0049] As shown in FIG. 1, a computer installed in a factory of a customer 200 includes a communication program 201, a DR request editing and profile input program 202, and a DR request editing and profile input I / F 203.

[0050] The communication program 201 is a program for transmitting information processed by the computer to the aggregator system 100 or the DR contract owner 300, or for receiving information input from the aggregator system 100 or the DR contract owner 300.

[0051] The DR request editing and profile input program 202 receives information processed by the aggregator system 100 and management It receives information input from the terminal 200T and executes processing such as layout conversion for the aggregator system 100.

[0052] The DR request editing / profile input I / F 203 is an interface for receiving information input from the customer management terminal 200T, or for outputting information processed by the aggregator system 100 or the computer of the customer 200 to the aggregator management terminal 100T. Next, the DR contractor 300 will be described.

[0053] The DR contractor 300 is a business that supplies power to the consumer 200, and makes a request to the aggregator to adjust the supply and demand of power. For example, a computer owned by the business transmits a new DR event to the aggregator system 100. Next, the processing performed in this system will be described.

[0054] FIG. 9 is a flowchart showing the procedure of the process (power supply and demand adjustment process) performed in this system.

[0055] As shown in FIG. 9, in the power supply and demand adjustment process, first, the DR request adjustment program 109 adds a new DR event to the DR event list. information The adjustment amount of the DR event is acquired from the DR event list 101 (FIG. 3), and the adjustment amount of the acquired DR event is set as the requested adjustment amount (S901). information The DR contract owner 300 sends the message 101 at any timing or periodically.

[0056] The DR request adjustment program 109 uses the DR event list acquired in S901 information The process including the time period of the DR event shown in 101 is information For example, the DR request adjustment program 109 acquires the DR event list from the DR event list 106 (S902). information The time period from the "start date and time" to the "end date and time" of 101 and the consumer profile information The DR request adjustment program 109 determines whether any of the time periods, including the time period from the "planned start time" to the "planned end time" included in the time period information 807 of the DR request adjustment program 109, overlaps with the time period from the "earliest start time" to the "earliest end time" or the "latest end time," or the time period from the "latest start time" to the "earliest end time" or the "latest end time." If the DR request adjustment program 109 determines that there is an overlapping time period between the two, it acquires the process.

[0057] The DR request adjustment program 109 shifts the process acquired in S902 within the allowable range indicated by the time slot described above, and determines a combination of shifts and processes that satisfies the requested adjustment amount set in S901 (S903). For example, the DR request adjustment program 109 shifts the time slot from the planned start time of "Process 1" ("00:00:00 every day") to the planned end time of "Process 1" ("00:30:00 every day") to the time slot from the earliest start time of "Process 1" ("23:50:00 the previous day") to the earliest end time of "Process 1" ("00:10:00 today"), and determines whether the power consumption of "Process 1" in the post-shift time slot is included in the power consumption of the time slot including other processes, and satisfies the set requested adjustment amount. If the DR request adjustment program 109 determines that the power consumption in the post-shift time slot satisfies the set requested adjustment amount, it proceeds to S904.

[0058] On the other hand, if the DR request adjustment program 109 determines that the power consumption in the time slot after the shift does not satisfy the set requested adjustment amount, it shifts the processes and repeats the adjustment of the power consumption to find a combination of processes that satisfies the requested adjustment amount. That is, in S903, the DR request adjustment program 109 finds a combination of processes that can be shifted so that the power reduction amount satisfies the requested adjustment amount by shifting each process within the allowable range indicated by the time slot. The DR request adjustment program 109 determines the width of the time slot for shifting the process by adjusting the shift amount of the process within the shiftable range. In this way, fine-tuning the time slot of the process within the shiftable range enables more accurate adjustment of power supply and demand. In this fine-tuning, the DR request adjustment program 109 may determine that the set requested adjustment amount is satisfied if the total of the shift amounts for each consumer in the adjustable time slot (i.e., the total adjustment amount of power supply and demand) is within a predetermined error range of the adjustment power value, which is the requested adjustment amount. This makes it possible to flexibly find a combination of processes that satisfies the requested adjustment amount.

[0059] The DR request adjustment program 109 sets the combination of the shifted processes in the DR request list information 102 (FIG. 4), and sends the specific contents of the DR request to each consumer (S904).

[0060] The DR request adjustment program 109 acquires the DR response list information 103 (FIG. 5) which is a DR response from each consumer to the DR request sent in S904 (S905).

[0061] As shown in FIG. 1 , the aggregator or the consumer has a power storage facility E1 or E2 that stores power. Therefore, the DR request adjustment program 109 reads the DR response list information 103 and determines whether the consumer 200 can shift the time slot of the requested process based on the DR request list information 102. If it determines that the shift is not possible, the DR request adjustment program 109 may instruct the consumer to consume power for the process using the power storage facility E2 of the consumer that responded that the shift is not possible. The consumer that receives the instruction consumes the power stored in the power storage facility E2 to perform the process, thereby maintaining the requested adjustment amount specified in the DR event list information 101 within the time slot of the DR event, which is the adjustment time slot. While the case where the requested adjustment amount is maintained by the power storage facility E2 has been described here, the requested adjustment amount may also be maintained by the power storage facility E1 of the aggregator system 100.

[0062] The DR request adjustment program 109 reads the DR response list information 103 received from each consumer in S905 and determines whether the supply and demand adjustment amount of the DR event received in S901 is satisfied (S906). If the DR request adjustment program 109 determines that the supply and demand adjustment amount of the DR event received in S901 is not satisfied (S906; No), the DR request adjustment program 109 sets the insufficient supply and demand adjustment amount as a new requested adjustment amount (S907), and then returns to S902 and repeats the subsequent processes. As a result, the processes of S902 to S905 are repeated until the requested adjustment amount is satisfied. In other words, the DR request adjustment program 109 determines by how much of a shift the shiftable process should be shifted by referring to the consumer profile information 106 and the DR response list information 103, and thereby calculates the time period and adjustment amount for adjusting the supply and demand of power within the requested range.

[0063] On the other hand, if the DR request adjustment program 109 determines that the supply and demand adjustment amount of the DR event received in S901 is satisfied (S906; Yes), the DR request execution program 110 sends an instruction to execute the DR request to the consumer 200 (S908). The DR request execution program 110 updates the consumer priority information 104 (FIG. 6) based on the DR execution result and the consumer evaluation policy information 105 (FIG. 7) (S909).

[0064] For example, the DR request execution program 110 applies the adjustment amount of the consumer-specific response 503, which is the sum of the partial adjustment amount, start time, end time, and partial adjustment amount for the consumer, of the shift item 505 included in the DR response list information 103 transmitted by the consumer 200 to the aggregator system 100, to a formula in the consumer evaluation policy information 105, and the larger the value obtained from the formula, the higher the priority. In FIG. 7, the cumulative total of past actual adjustment times (actual values ​​from the start time to the end time) may be set as the "cumulative actual adjustment time," and the adjustment time (planned value from the start time to the end time) when included in the DR response list information 103 and transmitted to the aggregator system 100 may be set as the "cumulative planned adjustment time." Similarly, the actual adjustment amount in the past (actual value of the adjustment amount in the customer-specific response 503) can be defined as the "actual adjustment kW value," and the adjustment amount when included in the DR response list information 103 and sent to the aggregator system 100 (planned value of the adjustment amount in the customer-specific response 503) can be defined as the "planned adjustment kW value."

[0065] The DR request execution program 110 sorts the consumers 200 in descending order of the calculated consumer priority value, and writes the calculated consumer priority value in the "adjustment priority" of the consumer priority information 104. If readjustment is performed in step S906 (S906; No), the calculated consumer priority value is written in the "readjustment priority" of the consumer priority information 104. The time coefficient and the power coefficient may be arbitrarily determined depending on the environment in which the present system is applied.

[0066] FIG. 10 is a diagram showing an example of a power supply and demand adjustment screen (aggregator side) output by the aggregator system 100. The power supply and demand adjustment screen is displayed on the display device of the aggregator management terminal 100T. As shown in FIG. 10, a power supply and demand adjustment screen 1001 on the aggregator side displays a consumer ID, consumer name, DR request ID, and shift item ID as consumer-specific settings 1002. These items are stored in a consumer profile. information 106 and the information stored in the DR request list information 102. Also, each item displayed as a shift item setting 1003 is information stored in the shift item 405 of the DR request list information 102.

[0067] In addition, when the "Display" button is clicked in the device list item on the screen, a device list 1004 is displayed, which is a list of facilities and devices owned by the customer. Items displayed in the device list 1004 include the customer profile, information This information is stored in the device list 806 and devices 808 included in 106 .

[0068] The consumer adjustment amount 1005 is information stored in the adjustment amount included in the consumer-specific request 403 of the DR request list information 102. In addition, the total adjustment amount 1006 is the sum of the adjustment amounts of each consumer in one DR request, which is stored as the consumer adjustment amount 1005.

[0069] By checking the power supply and demand adjustment screen, the administrator of the aggregator system 100 can easily check what kind of DR requests will be sent to each consumer in response to the DR requests received from the DR contractor 300. The power supply and demand adjustment screen is output to the aggregator management terminal 100T, for example, at the timing when S904 of the power supply and demand adjustment process shown in Fig. 9 is executed.

[0070] The power supply and demand adjustment screen is also displayed on the display device of the aggregator management terminal 100T when DR response list information 103 is received from a consumer. In this case, the consumer ID, consumer name, DR response ID, and shift item ID are displayed as consumer-specific settings 1002. These items are stored in the consumer profile information 106 and the DR response list information 103. Each item displayed as a shift item setting 1003 is information stored in the shift item 505 of the DR response list information 103. That is, each item stores information when the time period of a process is shifted within an acceptable range for a customer in response to a DR request.

[0071] In addition, when the "Display" button is clicked in the device list item on the screen, a device list 1004 is displayed, which is a list of facilities and devices owned by the customer. Items displayed in the device list 1004 include the customer profile, information This information is stored in the device list 806 and devices 808 included in 106 .

[0072] The consumer adjustment amount 1005 is information stored in the adjustment amount included in the consumer-specific request 503 of the DR response list information 103. In addition, the total adjustment amount 1006 is the sum of the adjustment amounts of each consumer in one DR response, which are stored as the consumer adjustment amount 1005.

[0073] The administrator of the aggregator system 100 can easily check what kind of DR response has been sent from each consumer in response to the DR request by checking the power supply and demand adjustment screen. The power supply and demand adjustment screen is output to the aggregator management terminal 100T, for example, when S905 of the power supply and demand adjustment process shown in FIG. 9 is executed.

[0074] The DR request execution program 110 of the aggregator system 100 grants incentives to each consumer according to the amount of power supply and demand adjustment provided by each consumer when it is determined that the amount of power supply and demand adjustment for the DR event is satisfied in S906 shown in Fig. 9. For example, in negawatt trading, the greater the apparent power generation capacity obtained by reducing power consumption, the higher the incentive granted to that consumer.

[0075] Fig. 11 is a diagram showing an example of a power supply and demand adjustment screen (consumer side) output by the computer of the consumer 200. As shown in Fig. 11, a power supply and demand adjustment screen 1101 on the consumer side displays a consumer ID, a consumer name, a DR request ID, and a shift item ID as consumer-specific settings 1102. These items are stored in the consumer profile information 10. The information displayed as the shift item setting 1102 and the shift item setting 1103 is information stored in the shift item 505 of the DR response list information 103. In other words, the information displayed as the consumer-specific setting 1102 and the shift item setting 1103 is the same information as the consumer-specific setting 1002 and the shift item setting 1003 shown in FIG.

[0076] Unlike FIG. 10, this screen displays a shift item 1104 for specifying a response to the shift item for the requested process. The shift item 1104 displays an "OK" button indicating that the consumer accepts the request, a "cancel" button indicating that the consumer does not accept the request, and an "edit" button indicating that the consumer will edit and modify the request. In this example, a DR request has been made to adjust the original start time "15:00" and end time "15:30" to the time "14:40" indicated in the start time adjustment and the time "15:10" indicated in the end time adjustment. If the consumer with consumer ID "15" approves the request, the "OK" button is pressed, and if not, the "cancel" button is pressed. Furthermore, if the consumer cannot adjust to the time "14:40" shown in the start time adjustment but can adjust to the time "14:50", they can press the "edit" button and adjust to the time "14:50" by sliding arrow A, which indicates the time shown as "14:40" in the start time adjustment. This allows the consumer to make adjustments within an acceptable range even if they cannot make the adjustment as requested.

[0077] The consumer adjustment amount 1105 is information stored in the adjustment amount included in the consumer-specific response 503 of the DR response list information 103. When the adjustment is completed, the computer of the consumer 200 accepts a confirmation transmission button 1106 from the administrator, and transmits the DR response list information 103 to the aggregator system 100.

[0078] By checking the power supply and demand adjustment screen, the manager of the consumer 200 can understand what kind of adjustment will be made for the DR request, and can also set the extent to which the request can be met even if it cannot be met and include this in the DR response, allowing the manager to participate in the DR event within an acceptable range. The power supply and demand adjustment screen is output to the consumer management terminal 200T when S905 of the power supply and demand adjustment process shown in Figure 9 is executed.

[0079] This system performs the above-mentioned power supply and demand adjustment process, making it possible to find consumers who can efficiently adjust to the requested amount of supply and demand adjustment, and to adjust power supply and demand more accurately than before.

[0080] Figure 12 is an image diagram for explaining the power supply and demand adjustment performed by each consumer. As shown in Figure 12, consider a situation in which, for total power demand 1201, a supply and demand adjustment of supply and demand adjustment amount R (shaded area) is requested 45 minutes after each consumer receives a DR request from the aggregator system 100. This supply and demand adjustment starts 45 minutes after the DR request is received and ends after a predetermined DR time period has elapsed.

[0081] Under these conditions, for example, consumer 1 is capable of supply and demand adjustment 1202 (shaded portion) during the time period from the requested DR start time to the DR end time, indicating that consumer 1 is a consumer who can participate in DR, as in the past. Consumer 2 is only capable of supply and demand adjustment 1203 (shaded portion) during the time period from the requested DR start time to the DR end time, indicating that supply and demand adjustment cannot be continued until the DR end time. Consumer 3 is unable to meet the requested DR start time, and is only capable of supply and demand adjustment 1204 (shaded portion) during the time period until the DR end time, indicating that supply and demand adjustment cannot be continued until the DR end time. Furthermore, consumer 4 is unable to meet the requested DR start time, and is only capable of supply and demand adjustment 1205 (shaded portion) during the time period from the middle of the DR time period until the DR end time.

[0082] In such a case, conventionally, only consumer 1 could participate in DR, but in this system, the above-mentioned power supply and demand adjustment process is performed, and even consumers such as consumers 2, 3, and 4 who do not satisfy the conditions specified in the DR request, can participate by making a DR response that shifts the process within an acceptable range, and the aggregator system 100 refers to the shift items included in the DR responses received from each consumer and adjusts them to satisfy the DR request. Therefore, more consumers than before can participate in aggregation, and even if many consumers participate in aggregation, it is possible to improve the situation where consumers who can only respond during certain time periods cannot be integrated as resources subject to adjustment power.

[0083] As described above, in the power supply and demand adjustment system of this embodiment, a computer having a processor and a memory adjusts the supply and demand of power by having multiple consumers 200 control their power consumption in accordance with instructions from an aggregator. In this power supply and demand adjustment system (aggregator system 100), as described in S903 of FIG. 9 and other sections, the processor determines a combination of processes that satisfies the adjustment amount requested by shifting the processes within an allowable range based on DR (Demand Response) event information (DR event list information 101) including events related to planned power supply and demand adjustment stored in the memory, and consumer profile information 106, which is information indicating characteristics of processes that consume power at the consumers 200 and can be shifted in time, and generates DR request information (DR request list information 102) for each of the multiple consumers, including a request for adjusting the supply and demand of power by the adjustment amount determined in the planned DR event. Based on the DR response information (DR response list information 103) including responses regarding the process of the time shift obtained from each consumer in response to the generated DR request information, the amount of the shift is determined, and the supply and demand of electricity is adjusted.

[0084] Furthermore, as explained using Figures 3, 9, etc., the processor receives the DR event information from the DR contract owner 300 and stores it in the memory, and determines the amount of shift in the time period in which equipment is used for each consumer based on the adjustment power value (adjustment amount) and adjustment time period (time period obtained from the start date and time and end date and time) included in the stored DR event information, and the consumer profile information, thereby setting the total adjustment amount of power supply and demand for each consumer in the adjustment time period to be within a predetermined error range of the adjustment power value (for example, the total adjustment amount such that the difference from the requested adjustment amount is within a predetermined range).

[0085] As described using Figures 8 and 9, the customer is a factory having a production line including multiple processes that use the equipment, and the processor generates the DR request information using the customer profile for the production line and the multiple processes that can be shifted.

[0086] As described with reference to FIGS. 4, 9, etc., the processor transmits the DR request information including the determined shift width to each consumer, and changes the time period during which the device is used in accordance with a request based on the DR request information received by each consumer.

[0087] Also, as shown in Figure 1, the aggregator or the consumer is equipped with a power storage facility E1 or E2 that stores power, and if the consumer cannot change the time period based on the DR request information, the processor consumes the power stored in the power storage facility to maintain the adjustment power value included in the DR event information within the range of the adjustment time period.

[0088] This configuration of the system enables precise and flexible adjustment of power supply and demand according to the operating status of various facilities and processes owned by consumers. That is, based on a consumer profile containing information on the equipment used by each consumer, the power consumption of that equipment, the time periods during which the equipment is used, and the amount by which that time period can be shifted, the aggregator determines the amount by which the time periods during which the equipment is used for each consumer and adjusts the power supply and demand. Therefore, within the allowable range of power supply and demand adjustment, consumers that can only be served during certain time periods can be included as resources to be integrated into the power supply and demand adjustment capacity.

[0089] In recent years, as the trend toward increasing the proportion of electricity generated from renewable energy sources has accelerated worldwide, concerns about the stability of power supply have led to the need to develop and secure consumers who can generate adjustment capacity. This system can meet the need for highly stable sources of adjustment capacity, while also contributing to the realization of carbon neutrality.

[0090] The present invention is not limited to the above-described embodiments as they are, and in the implementation stage, the components can be modified and embodied within the scope of the gist of the present invention, or multiple components disclosed in the above-described embodiments can be appropriately combined. [Explanation of symbols]

[0091] 1000 Electricity supply and demand adjustment system 100 Aggregator Systems 101 DR Event List Information 103 DR Request List Information 103 DR Response List Information 104 Consumer priority information 105 Customer Assessment Policy Information 106 Customer profile information 107 DR request adjustment I / F 108 Communication Programs 109 DR Demand Adjustment Program 110 DR request execution program 100T Aggregator Management Terminal 200 Consumer 201 Correspondence Program 202 DR request editing and profile input program 203 DR request editing / profile input I / F 200T customer management terminal 300 DR Contractor N Network

Claims

1. An electric power supply and demand adjustment system in which a plurality of consumers adjusts electric power supply and demand by controlling electric power consumption according to instructions from an aggregator using a computer having a processor and a memory, The processor: Based on DR (Demand Response) event information stored in the memory, including events related to planned adjustment of power supply and demand, and consumer profile information, which is information indicating characteristics of processes that consume power and are performed at the consumer and can be shifted in time, a combination of processes is determined that satisfies the requested adjustment amount for power reduction by shifting the processes within an allowable range, and DR request information is generated for each of the multiple consumers, including a request for adjusting the supply and demand of power for the adjustment amount set in the planned DR event; determining a width of the shift based on DR response information including a response regarding a process for the time shift obtained from each consumer in response to the generated DR request information, and adjusting the supply and demand of electricity; An electric power supply and demand adjustment system characterized by:

2. The processor: receiving the DR event information from the DR contract holder and storing it in the memory, and determining the width of the time period during which the equipment is used for each consumer based on the adjustment power value and adjustment time period included in the stored DR event information and the consumer profile information, thereby making the total amount of adjustment of the power supply and demand for each consumer during the adjustment time period fall within a predetermined error range of the adjustment power value; 2. The power supply and demand adjustment system according to claim 1.

3. the customer is a factory having a production line including a plurality of processes using the equipment, The processor: generating the DR request information using the customer profile information about the production line and the plurality of shiftable processes; 3. The power supply and demand adjustment system according to claim 2.

4. The processor: transmitting the DR request information including the determined shift width to each consumer, and changing the time period in which the appliance is used in accordance with a request based on the DR request information received by each consumer; 3. The power supply and demand adjustment system according to claim 2.

5. The aggregator or the consumer includes a power storage facility that stores power, The processor: If the consumer cannot change the time period based on the DR request information, the consumer consumes the power stored in the power storage facility to maintain the adjustment power value included in the DR event information within the range of the adjustment time period.

5. The power supply and demand adjustment system according to claim 4.

6. A power supply and demand adjustment method in which a plurality of consumers adjusts power supply and demand by controlling power consumption in accordance with instructions from an aggregator using a computer having a processor and a memory, the method comprising: The processor: Based on DR (Demand Response) event information stored in the memory, including events related to planned adjustment of power supply and demand, and consumer profile information, which is information indicating characteristics of processes that consume power and are performed at the consumer and can be shifted in time, a combination of processes is determined that satisfies the requested adjustment amount for power reduction by shifting the processes within an allowable range, and DR request information is generated for each of the multiple consumers, including a request for adjusting the supply and demand of power for the adjustment amount set in the planned DR event; determining a width of the shift based on DR response information including a response regarding a process for the time shift obtained from each consumer in response to the generated DR request information, and adjusting the supply and demand of electricity; A method for adjusting power supply and demand.

7. The processor: receiving the DR event information from the DR contract holder and storing it in the memory, and determining the width of the time period during which the equipment is used for each consumer based on the adjustment power value and adjustment time period included in the stored DR event information and the consumer profile information, thereby making the total amount of adjustment of the power supply and demand for each consumer during the adjustment time period fall within a predetermined error range of the adjustment power value; The method for adjusting power supply and demand according to claim 6.

8. the customer is a factory having a production line including a plurality of processes using the equipment, The processor: generating the DR request information using the customer profile information about the production line and the plurality of shiftable processes; The method for adjusting power supply and demand according to claim 7 .

9. The processor: transmitting the DR request information including the determined shift width to each consumer, and changing the time period in which the appliance is used in accordance with a request based on the DR request information received by each consumer; The method for adjusting power supply and demand according to claim 7 .

10. The processor: If the consumer cannot change the time period based on the DR request information, the aggregator or the consumer consumes the power stored in a power storage facility that stores power, thereby maintaining the adjustment power value included in the DR event information within the range of the adjustment time period. The method for adjusting power supply and demand according to claim 9 .

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