Apparatus for determining power source to be activated, apparatus for determining power source to be procured, system for determining power source to be used, method for determining power source to be activated, and program for determining power source to be activated

Abstract

To provide an activating power source determination device which allows for securing necessary electric power while suppressing greenhouse gas emissions.SOLUTION: An activating power source determination device 2 for determining power sources to be activated from among power sources connected to an electric power system and the amount of power to be generated by the power sources is provided, the activating power source determination device being configured to determine activating power sources to be activated and the amount of electric power to be generated by each of the activating power sources on the basis of system state information indicative of the state of the electric power system and output adjustment capability, output adjustment price, and greenhouse gas emission characteristics of each power sources connected to the electric power system.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a power source determination device, a power source supplier determination device, a power source use determination system, a power source determination method, and a power source determination program that determine a power source to be used to supply power to a consumer. [Background technology]

[0002] In recent years, in order to prevent global warming caused by greenhouse gases such as carbon dioxide (CO2), there has been a demand for reducing greenhouse gas emissions when power sources generate electricity.

[0003] Regarding this problem, for example, Patent Document 1 describes an online electricity trading system for exchanging electricity between electric power companies while taking into consideration CO2 emissions. In the trading system described in Patent Document 1, sales conditions (amount of electricity desired to be sold, desired selling price, desired selling CO2 emission intensity, etc.) from electric power companies wishing to sell electricity and purchase conditions (amount of electricity desired to be purchased, desired purchasing price, desired purchasing CO2 emission intensity, etc.) from electric power companies wishing to purchase electricity are registered in a server database, and a terminal device of each electric power company acquires the sales conditions and purchase conditions from the server via a network and displays a list, making it possible to place sales orders and purchase orders for electricity. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-366615 Summary of the Invention [Problem to be solved by the invention]

[0005] In a liberalized electricity market, businesses that sell electricity to consumers (hereinafter referred to as "retail electricity businesses") procure the electricity used by each consumer from the power sources owned by one or more power generation businesses. For example, the electricity used by each consumer is procured by securing a power source in advance based on a forecast of the amount of electricity consumed by each consumer, and activating the secured power source according to the actual power usage situation of each consumer. The activation details, i.e., how much electricity to procure from which power source, are determined taking into account the electricity rate, the type of power source, etc.

[0006] However, in conventional electricity markets, CO2 emissions are not taken into consideration when determining the power source from which electricity should be procured and the amount of electricity to be procured, which means that it is not possible to secure the necessary electricity while suppressing CO2 emissions.

[0007] The present disclosure has been made in consideration of the above, and aims to provide an activation power source determination device that can secure the necessary power while suppressing greenhouse gas (GHG) emissions. [Means for solving the problem]

[0008] In order to solve the above-mentioned problems and achieve the object, the present disclosure provides a power source determination device that determines a power source to be activated from among power sources connected to a power grid and the amount of power generated by the power source, and that determines system status information indicating the state of the power grid and the output adjustment capabilities of each power source connected to the power grid. The output adjustment direction and amount of each power source are calculated based on the above. Output adjustment pricing and greenhouse gas emissions special Sexual based on Calculate the evaluation value of each power source, and based on the output adjustment direction, output adjustment amount and evaluation value of each power source, The method is characterized in that it determines the power source to be activated and the amount of power generated by each of the power sources. [Effects of the Invention]

[0009] The power source determination device according to the present disclosure has the effect of being able to secure the necessary power while suppressing GHG emissions. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is a diagram illustrating an example of the configuration of a power supply management system including an activation power supply determination device according to an embodiment. [Figure 2] FIG. 1 shows an example of the configuration of a procurement source power source determination device and a power source determination device; [Figure 3] A flowchart showing an example of the operation of the procurement source power source determination device. [Figure 4] A flowchart showing an example of the operation of the power source determination device [Figure 5] FIG. 1 is a diagram showing an example of hardware for implementing a power source supplier determination device. DETAILED DESCRIPTION OF THE INVENTION

[0011] The following describes in detail the power source determination device, power source supplier determination device, power source use determination system, power source determination method, and power source determination program according to embodiments of the present disclosure with reference to the accompanying drawings.

[0012] Embodiment FIG. 1 illustrates an example configuration of a power supply management system 200 including a power supply determination device according to an embodiment. The power supply management system 200 determines which power supplies connected to a power grid should be activated and how much power they should generate, and provides the determination results to a power supply control system 300. The power supply management system 200 determines which power supplies to activate and the amount of power generated by the power supplies based on power supply information including the GHG emission characteristics of each power supply. The GHG emission characteristics are the amount of GHG emissions per unit of power generated by a power supply, e.g., the amount of GHG emissions when 1 kW of power is generated for one hour. The GHG emission characteristics may also be the amount of GHG increase when a power supply increases its output (power generation amount) by 1 kW and the amount of GHG reduction when a power supply decreases its output by 1 kW. The power supply control system 300 controls various devices and power supplies that make up the power grid based on the determination results of the power supply management system 200.

[0013] The power supply management system 200 includes a procurement power source determination device 1, an operation power source determination device 2, a system operation information management device 5, and a power source information management device 6. The procurement power source determination device 1 is connected to the operation power source determination device 2, the system operation information management device 5, and the power source information management device 6. The operation power source determination device 2 is also connected to the procurement power source determination device 1, the system operation information management device 5, and the power source information management device 6. The procurement power source determination device 1 and the operation power source determination device 2 may be connected to other devices in any manner. The devices may be directly connected to each other via a dedicated communication line, or may be connected to each other via a communication network such as the Internet.

[0014] The source power source determination device 1 determines a source of power from among the power sources connected to the power grid to supply electricity to consumers. The source power source determination device 1 determines a source of power based on a required power source capacity determined based on a demand plan, first power source capacity information including information on the power generation capacity and GHG emission characteristics of each power source, and power generation price information including electricity price information of each power source. The required power source capacity is the amount of power that needs to be secured. The required power source capacity is, for example, the total value of demand plans created by each electricity retailer using the power grid based on demand forecasts for each consumer. The required power source capacity is determined by a grid operator or the like and registered in the grid operation information management device 5. The power generation capacity is, for example, the range of power that a power source can output, the maximum amount of power that a power source can generate, etc. The source power source determination device 1 determines a source of power from which to procure electricity, taking into account the price of electricity, power generation capacity, GHG emission characteristics, etc., for example, using the required power source capacity as a target value, so that the total amount of power that each power source can generate reaches the required power source capacity. The amount of power to be procured from the determined power source is determined by the power source determination device 2.

[0015] The activation power source determination device 2 determines the activation power sources to be activated from among the source power sources determined by the source power source determination device 1, and also determines the power generation capacity of each activation power source. The activation power source determination device 2 may determine the power generation capacity for all source power sources and set the power generation capacity of power sources that will not be activated to zero. The activation power source determination device 2 determines the power sources to be activated and the power generation capacity of each power source based on system status information indicating the state of the power system, second power source capacity information including information on the output adjustment capacity and GHG emission characteristics of each power source, and output adjustment price information including output adjustment price information. The system status information represents the balance between the demand and supply of electricity in the power system, frequency fluctuations, and the congestion state of the power system. The output adjustment capacity is, for example, the range in which output can be changed and the time required to change output by 1 kW. The output adjustment price is, for example, the price per kWh for increasing output and the price per kWh for decreasing output. The price of scaling up or down may be different or the same.

[0016] The procurement source power source determination device 1 and the generation power source determination device 2 constitute a power source usage determination system 100 that determines the power source and the amount of power to be generated to generate electricity to be supplied to consumers.

[0017] The system operation information management device 5 manages system operation information including required power capacity and system status information. The system operation information management device 5 acquires, from the system operator or the like, demand plans created by electricity retailers that use the power system, and generates required power capacity for each electricity retailer based on the acquired demand plans. For example, the system operation information management device 5 sets the required power capacity as a demand plan value, which is the demand amount stated in the demand plan, or a value obtained by correcting the demand plan value based on a demand actual value, which is the amount of power actually consumed by consumers.

[0018] The power supply information management device 6 manages power supply information including power supply capacity information, power supply bidding information, and power supply capacity activation information. The power supply capacity information, power supply bidding information, and power supply capacity activation information included in the power supply information are acquired from power generation companies, VPP (Virtual Power Plant) companies, etc.

[0019] FIG. 2 is a diagram showing an example of the configuration of the procurement source power source determination device 1 and the operation power source determination device 2. As shown in FIG.

[0020] The supplier power source determination device 1 includes an information acquisition unit 10, a supplier determination unit 13, and a supplier storage unit .

[0021] The information acquisition unit 10 includes a power supply capacity requirement acquisition unit 11 that acquires the power supply capacity requirement from the system operation information management device 5, and a power supply information acquisition unit 12 that acquires first power supply capacity information and power generation price information from the power supply information management device 6.

[0022] The supplier determination unit 13 determines a power source from which to purchase power to be supplied to the consumer, based on the required power source capacity, the first power source capacity information, and the power generation price information.

[0023] The supplier storage unit 14 stores information about the power source that the supplier determination unit 13 has determined as the supplier.

[0024] The activation power source determination device 2 includes an information acquisition unit 20, an activation content determination unit 24, and an activation content storage unit 25.

[0025] The information acquisition unit 20 includes a system information acquisition unit 21 that acquires system status information from the system operation information management device 5, a supplier information acquisition unit 22 that acquires information about the power supplier from the supplier power source determination device 1, and a power source activation condition acquisition unit 23 that acquires second power source capacity information and output adjustment price information from the power source information management device 6. The information about the power supplier acquired by the supplier information acquisition unit 22 includes identification information of the power sources determined as the supplier and information about the range of power that each power source determined as the supplier can output. It may also include information about the output adjustment capacity of each power source determined as the supplier.

[0026] The activation content determination unit 24 determines the power source to be activated and the amount of power generation based on the grid status information, information on the power supplier, second power source capacity information, and output adjustment price information.

[0027] The activation content storage unit 25 stores information on the power source to be activated and the amount of power generation determined by the activation content determination unit 24. The information stored in the activation content storage unit 25 is transferred to the power supply control system 300 at a predetermined timing. For example, when the activation content storage unit 25 receives information on the power source to be activated and the amount of power generation from the activation content determination unit 24, the activation content storage unit 25 may store this information and output it to the power supply control system 300.

[0028] Next, the operation of the supplier power source determination device 1, specifically the operation of determining a power source from which power to be supplied to a consumer will be procured, will be described.

[0029] Fig. 3 is a flowchart showing an example of the operation of the source power source determination apparatus 1. The source power source determination apparatus 1 executes the operation shown in the flowchart in Fig. 3 at a predetermined cycle, for example, to determine a power source from which to source power to be supplied to a consumer.

[0030] In the operation of determining a power source from which to procure electricity to be supplied to a consumer, first, the procurement source determination device 1 calculates an evaluation value for each power source from the price of electricity and the power source capacity (step S11). In detail, the procurement source determination unit 13 calculates an evaluation value for each power source based on the GHG emission characteristics of each power source connected to the power grid, which is included in the first power source capacity information acquired by the power source information acquisition unit 12, and on unit price information for electricity generated by each power source connected to the power grid, which is included in the power generation price information acquired by the power source information acquisition unit 12. The procurement source determination unit 13 calculates the evaluation value for each power source, for example, according to the following formula (1):

[0031] (Evaluation value) = (GHG emissions / 1kWh) + (electricity charges / 1kWh) ... (1)

[0032] In this case, the smaller the evaluation value, the higher the evaluation. GHG emissions per kWh and electricity charges may be weighted. For example, the evaluation value may be calculated by multiplying one or both of GHG emissions per kWh and electricity charges by a coefficient and then adding them up.

[0033] The supplier power source determination device 1 then calculates the upper limit of the amount to be secured for each required capacity (step S12). In this embodiment, the amount of power required by an electricity retailer, i.e., the power generation capacity that the electricity retailer wishes to secure, is defined as the required capacity. In other words, "for each required capacity" means "for each amount of power requested by an electricity retailer." The calculation of the upper limit of the amount to be secured is performed by the supplier determination unit 13. For example, the supplier determination unit 13 calculates the total amount of power required by each electricity retailer that uses the power grid (defined as the total required amount) and the total of the maximum power that each power source connected to the power grid can output (defined as the total maximum output), and if the total maximum output is smaller than the total required amount, the amount of power required by each electricity retailer is defined as the upper limit of the amount to be secured for each electricity retailer. For example, if there are three electricity retailers, each with a required amount of electricity of 30 kWh, 35 kWh, and 40 kWh, and the total maximum power output of each power source is 100 kWh, the maximum amount of power that can be secured for each of the three retailers will be set at 30 kWh, 35 kWh, and 40 kWh. On the other hand, if the total maximum output is equal to or greater than the total required amount, the amount of power that each retailer requires with a margin is calculated, and this is set as the maximum amount of power that can be secured for each retailer. For example, if there are three electricity retailers, each with a required amount of electricity of 30 kWh, 30 kWh, and 40 kWh, and the total maximum power output of each power source is 120 kWh, the maximum amount of power that can be secured for each of the three retailers will be set at 33 kWh, 33 kWh, and 44 kWh, for example, with a margin of 10%.

[0034] The supplier power source determination device 1 then determines, for each required capacity, a combination of power sources that satisfies the required amount to be secured and the constraints (step S13). The combination of power sources is determined by the supplier determination unit 13. For example, if the upper limit of the secured amount calculated in step S12 is greater than the required capacity of the electricity retailer, the supplier determination unit 13 determines, for each electricity retailer, a combination of power sources by optimization calculation, such that the sum of the upper limit values ​​of the power generation capacities of the combined power sources is greater than the required capacity and less than the upper limit of the secured amount, and further satisfies the set constraints. The constraints here are constraints on the suppliers, such as the upper limit of the evaluation value calculated in step S11, an upper limit of GHG emissions, an upper limit of electricity rates, an upper or lower limit of the proportion of power generation by a specific type of power source to the total, a lower limit of the proportion of power generation by a power source with high output adjustment capability (adjustment speed) to the total, and constraints on interconnection lines connecting regions in the power system (the upper limit of power that can be transmitted through interconnection lines). Furthermore, if the upper limit of the secured amount calculated in step S12 is the required capacity of the electricity retailer, the supplier determination unit 13 determines, for each electricity retailer, a combination of power sources whose total power generation capacity is equal to or greater than the required capacity and which satisfies the set constraints. Note that, if there are multiple combinations of power sources that satisfy the required secured amount and the constraints, the supplier determination unit 13 selects the combination that minimizes the sum of the evaluation values ​​of the power sources calculated in step S11.

[0035] In step S13, the supplier determination unit 13 may determine as the supplier a combination of power sources that minimizes GHG emissions without considering the electricity rate. That is, a constraint may be set to determine such a determination content. The supplier determination unit 13 may also determine as the supplier a combination of power sources that minimizes GHG emissions and keeps the electricity rate below a set upper limit. That is, a constraint may be set to determine such a determination content.

[0036] Next, supplier power source determination device 1 stores the combination determined in step S13 as a source of power procurement (step S14). In detail, supplier storage unit 14 stores the combination of power sources for each electricity retailer determined by supplier determination unit 13. In addition to the combination of power sources for each electricity retailer, supplier storage unit 14 also stores the power generation capacity of each power source, i.e., the range of power that each power source can output or the maximum value of power that each power source can output.

[0037] Next, we will explain the operation of the power source determination device 2, specifically, the operation of determining the power source to be activated from among the power sources determined by the power source determination device 1 and the amount of power to be output from the power source in order to procure electricity to supply to consumers.

[0038] Fig. 4 is a flowchart showing an example of the operation of the power source determination device 2. The power source determination device 2, for example, periodically executes the operation shown in the flowchart in Fig. 4 to determine the power source to be activated and the amount of power to be output.

[0039] In the operation of determining the power sources to be activated and the amount of power to be generated by the power sources to procure electricity to supply to consumers, the activation power source determination device 2 first calculates an evaluation value for each power source from the output adjustment price (step S21). Specifically, the activation content determination unit 24 calculates an evaluation value for each power source based on the GHG emission characteristics included in the second power source capacity information acquired by the power source activation condition acquisition unit 23 and the output adjustment price information. The output adjustment price may differ between increasing and decreasing output. Furthermore, when increasing output, a small increase in GHG emissions is desirable, while when decreasing output, a large decrease in GHG emissions is desirable. Therefore, the activation content determination unit 24 calculates a first evaluation value, which is an evaluation value when increasing output, and a second evaluation value, which is an evaluation value when decreasing output. The activation content determination unit 24 calculates the first evaluation value for each power source according to the following formula (2), and calculates the second evaluation value for each power source according to formula (3), for example.

[0040] (First evaluation value) = (GHG emissions / 1kWh) + (output adjustment price / 1kWh) …(2) (Second evaluation value) = - (GHG emissions / 1kWh) + (output adjustment price / 1kWh) …(3)

[0041] In this case, the smaller the evaluation value, the higher the evaluation. GHG emissions per kWh and output adjustment price may be weighted. For example, the evaluation value may be calculated by multiplying one or both of GHG emissions per kWh and output adjustment price by a coefficient and then adding them together.

[0042] The activation power source determination device 2 then calculates the activation direction and required amount for each required capacity (step S22). The activation direction is the direction in which the generator output is adjusted, and the required amount is the amount by which the generator output is to be adjusted. In step S22, the activation content determination unit 24 calculates, based on the grid status information acquired by the grid information acquisition unit 21, in which direction and by how much the total output of each generator is to be adjusted. In detail, the activation content determination unit 24 calculates, for each electricity retailer, the adjustment direction (whether to increase or decrease the total value) and the adjustment amount of the total amount of power output by each generator for the electricity retailer. If the grid status information indicates that supply-demand adjustment or frequency adjustment is necessary, the activation content determination unit 24 calculates the activation direction, which is the adjustment direction, and the required amount, which is the adjustment amount, so that the supply amount approaches the demand amount. If the grid status information indicates that congestion relief is necessary, the activation content determination unit 24 calculates the activation direction, which is the adjustment direction, and the required amount, which is the adjustment amount, so that the congestion occurring in the power grid is relieved. A congested state is a state in which the amount of power transmitted along a transmission route in a power grid exceeds the transmission capacity of the route. To resolve the congestion, the transmission route from each power source to the consumer and the amount of power transmitted along the transmission route are changed, for example, by changing the output of the power source.

[0043] The power generation source determination device 2 then determines, for each required capacity, a combination of power sources and an output adjustment amount that satisfy the activation direction, required amount, and constraints (step S23). The combination of power sources and the output adjustment amount are determined by the power generation content determination unit 24. The power generation content determination unit 24 determines, through optimization calculations, a combination of power sources and an output adjustment amount for each power source that satisfies the activation direction and required amount calculated in step S22 and also satisfies the set constraints. At this time, the power generation content determination unit 24 determines a power source from the combination of power sources selected as suppliers by the source power source determination device 1. The constraints here are constraints on the power sources to be activated, such as the upper limit of the evaluation value calculated in step S21, the upper limit of GHG emissions, the upper limit of fees associated with output adjustment, the upper limit of the total increase in GHG emissions when power generation output is increased, and constraints on interconnection lines connecting regions in the power system (the upper limit of power that can be transmitted via interconnection lines). For example, if the combination of power sources selected by the source power source determination device 1 for electricity retailer A is power source a, power source b, power source e, and power source g, the power generation content determination unit 24 determines a combination of power sources from among power sources a, b, e, and g that satisfies the generation direction and required amount for electricity retailer A and the constraints set for electricity retailer A. The generation content determination unit 24 also determines the output adjustment amount for each power source, i.e., how much to change the output of each power source. If there are multiple combinations of power sources that satisfy the generation direction, required amount, and constraints, the generation content determination unit 24 selects the combination that minimizes the sum of the evaluation values ​​of each power source calculated in step S21.

[0044] In step S23, the activation content determination unit 24 may determine the power source combination and output adjustment amount that minimize GHG emissions without considering the fees incurred due to the output adjustment. That is, a constraint may be set to determine the content of such a determination. Furthermore, the activation content determination unit 24 may determine the power source combination and output adjustment amount that minimize GHG emissions within a range in which the fees incurred due to the output adjustment do not exceed a specified value. That is, a constraint may be set to determine the content of such a determination.

[0045] The activation power source determination device 2 then stores the combination of power sources and the output adjustment amount determined in step S23 as activation details (step S24). In detail, the activation details storage unit 25 stores the combination of power sources for each electricity retailer and the output adjustment amount of each power source determined by the activation details determination unit 24.

[0046] Next, we will explain the hardware configurations of the procurement source power source determination device 1 and the generation power source determination device 2. The hardware configurations of the procurement source power source determination device 1 and the generation power source determination device 2 are the same. Therefore, as an example, the hardware configuration of the procurement source power source determination device 1 will be explained.

[0047] 5 is a diagram showing an example of hardware for realizing the source power source determination apparatus 1. The source power source determination apparatus 1 can be realized by a processor 101, a storage device 102, a display device 103, and a communication interface 104 shown in FIG.

[0048] The processor 101 is a CPU (Central Processing Unit, also called a central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, or DSP (Digital Signal Processor)), a system LSI (Large Scale Integration), etc. The storage device 102 is a RAM (Random Access Memory), a ROM (Read Only Memory), an EPROM (Erasable Programmable Read Only Memory), an EEPROM (registered trademark) (Electrically Erasable Programmable Read Only Memory), a hard disk drive, etc. The display device 103 is a liquid crystal monitor, a display, etc.

[0049] The required power capacity acquisition unit 11, power source information acquisition unit 12, and source determination unit 13 of the source power supply determination device 1 are realized by the processor 101 executing programs for operating these units. The source memory unit 14 is realized by the storage device 102. The programs for operating the required power capacity acquisition unit 11, power source information acquisition unit 12, and source determination unit 13 are pre-stored in the storage device 102. The processor 101 operates as the required power capacity acquisition unit 11, power source information acquisition unit 12, and source determination unit 13 by reading and executing the programs from the storage device 102. The processor 101 uses a communication interface 104 when acquiring information from outside as the required power capacity acquisition unit 11 and power source information acquisition unit 12. The communication interface 104 is also used when outputting information stored in the source memory unit 14 to the activation power source determination device 2.

[0050] The programs stored in the storage device 102 for operating as the power capacity requirement acquisition unit 11, the power information acquisition unit 12, and the supplier determination unit 13 may be provided to users, etc. in a form written on a storage medium such as a CD (Compact Disc)-ROM or a DVD (Digital Versatile Disc)-ROM, or may be provided to users, etc. via a network.

[0051] 5 may be hardware constituting a computer. That is, the source power source determination apparatus 1 may be realized by a computer and a program executed by the computer. Each function of the source power source determination apparatus 1 may be realized by a plurality of computers operating in cooperation with one another.

[0052] As described above, the power source determination system 100 according to this embodiment includes a source power source determination device 1 that determines, from among the power sources connected to the power grid, a power source to be used to supply electricity to a consumer; and a power source determination device 2 that determines which power source to activate from among the power sources determined by the source power source determination device 1 and determines the amount of power generated by the activated power source. The source power source determination device 1 determines a combination of power sources that meets set constraints as power sources to be used based on the required power source capacity determined based on a demand plan, first power source capacity information including information on the power generation capacity and GHG emission characteristics of each power source, and power generation price information including information on the unit price of electricity for each power source. The power source determination device 2 determines the power sources to activate and the amount of power generated by each power source based on system status information indicating the state of the power grid, second power source capacity information including information on the output adjustment capacity and GHG emission characteristics of each power source, and output adjustment price information including price information for output adjustment. The power source determination system 100 can realize a power grid that can secure and supply necessary power to consumers while suppressing GHG emissions.

[0053] In this embodiment, both the procurement power source determination device 1 and the power source determination device 2 perform processing that takes GHG emission characteristics into account to determine the source and power source of the required electricity, and to determine the power source to be activated and the amount of electricity to be generated, but by performing processing that takes GHG emission characteristics into account on at least one side, it becomes possible to procure the required electricity while suppressing GHG emissions. Since the power source to be actually activated and the amount of electricity to be generated by the power source are determined by the power source determination device 2, if one of the procurement power source determination device 1 and the power source determination device 2 is configured to perform processing that takes GHG emission characteristics into account, GHG emissions can be suppressed more efficiently by configuring the power source determination device 2 to perform processing that takes GHG emission characteristics into account.

[0054] The configurations shown in the above embodiments are merely examples, and may be combined with other known technologies, and parts of the configurations may be omitted or modified without departing from the spirit of the invention.

[0055] Various aspects of the present disclosure are summarized below as appendices.

[0056] (Appendix 1) A power source determination device that determines a power source to be activated from among power sources connected to a power grid and an amount of power generated by the power source, determining the power generation power sources to be activated and the power generation amounts of the respective power generation power sources based on system status information indicating the state of the power system, and the output adjustment capabilities, output adjustment prices, and greenhouse gas emission characteristics of each power source connected to the power system; A device for determining a power source to be activated. (Appendix 2) an information acquisition unit that acquires the grid status information, the output adjustment capacity, the output adjustment price, and the greenhouse gas emission characteristics, as well as the power generation capacity of a power source determined as a supplier of electricity to be supplied to a consumer; an operation content determination unit that determines the operation power sources and the power generation amounts of the operation power sources based on the information acquired by the information acquisition unit and predetermined constraints; 2. The activation power source determination device according to claim 1, comprising: (Appendix 3) The constraints include a constraint on an evaluation value for each power source calculated based on the output adjustment price and the greenhouse gas emission characteristics. 3. The device for determining a power source to be activated according to claim 2. (Appendix 4) The constraints include an upper limit on the total amount of greenhouse gas emissions when each of the power generating sources generates electricity. 3. The device for determining a power source to be activated according to claim 2. (Appendix 5) the constraints include an upper limit on the total amount of greenhouse gas emissions when each of the power generating sources generates electricity, and an upper limit on the total amount of electricity charges incurred as a result of the power generation by the power generating sources; 3. The device for determining a power source to be activated according to claim 2. (Appendix 6) The constraint is set so that the total value of greenhouse gas emissions when each of the power generating sources generates electricity is minimized. 3. The device for determining a power source to be activated according to claim 2. (Appendix 7) the power system status information includes information on a balance state between the demand and supply of power in the power system, the generation content determination unit determines the generation power source and the amount of power generated by each of the generation power sources so as to reduce the difference between the amount of power demand and the amount of power supply in the power grid while satisfying the constraints; 7. The device for determining a power source to be activated according to any one of claims 2 to 6. (Appendix 8) the system state information includes information on a fluctuation state of a frequency in the power system, the generation content determination unit determines the generation power sources and the amounts of power generated by each of the generation power sources so that the frequency in the power grid is a predetermined appropriate value while satisfying the constraints; 8. The device for determining a power source to be activated according to any one of claims 2 to 7. (Appendix 9) the grid status information includes information on a congestion state of the power grid, the activation content determination unit determines the generation power sources and the amounts of power generated by each of the generation power sources so as to eliminate the congestion state of the power grid while satisfying the constraints. 9. The device for determining a power source to be activated according to any one of claims 2 to 8. (Appendix 10) A power supply determination device that determines a power supply from which power to be supplied to a consumer is to be supplied from among power supplies connected to a power grid, determining the power source to be procured based on the required power source capacity determined based on the demand plan, the power generation capacity, greenhouse gas emission characteristics, and electricity price of each power source connected to the power grid; A power supply source determination device characterized by: (Appendix 11) an information acquisition unit that acquires the required power supply capacity, the power generation capacity, the greenhouse gas emission characteristics, and the price; a supplier determination unit that determines the power source to be supplied based on the information acquired by the information acquisition unit and preset constraints; 11. The procurement source power source determination device according to claim 10, comprising: (Appendix 12) The constraints include a constraint on an evaluation value for each power source calculated based on the greenhouse gas emission characteristics and the price. 12. The procurement source power source determination device according to claim 11, (Appendix 13) A power source use determination system that determines a power source and an amount of power generation that will generate electricity to be supplied to a consumer from among power sources connected to a power grid, a power source determination device that determines a power source from which to procure electricity to be supplied to the consumer based on a power source capacity requirement determined based on a demand plan, and the power generation capacity, greenhouse gas emission characteristics, and electricity price of each power source connected to the power grid; an activation power source determination device that determines an activation power source, which is a power source to be activated, from among the power sources determined as the procurement source by the procurement power source determination device, based on system status information indicating the state of the power system and the output adjustment capacity, output adjustment price, and greenhouse gas emission characteristics of each power source connected to the power system, and that determines the power generation amount of each activation power source; A power source use determination system comprising: (Appendix 14) A method for determining a power source to be activated, which is executed by a power source determination device that determines a power source to be activated from among power sources connected to a power grid and an amount of power generated by the power source, comprising: a first step of acquiring system status information indicating a state of the power system, and output adjustment capabilities, output adjustment prices, and greenhouse gas emission characteristics of each power source connected to the power system; a second step of determining the power sources to be activated and the power generation amounts of the power sources based on the information acquired in the first step and predetermined constraints; A method for determining a power source to be activated, comprising: (Appendix 15) A program for determining a power source to be activated that causes a computer to execute the processing of a power source determination device that determines a power source to be activated from among power sources connected to a power grid and the amount of power generated by the power source, a first step of acquiring system status information indicating a state of the power system, and output adjustment capabilities, output adjustment prices, and greenhouse gas emission characteristics of each power source connected to the power system; a second step of determining the power sources to be activated and the power generation amounts of the power sources based on the information acquired in the first step and predetermined constraints; A program for determining a power source to be activated, which causes the computer to execute the program. [Explanation of symbols]

[0057] 1 Procurement source determination device, 2 Activation source determination device, 5 System operation information management device, 6 Power source information management device, 10, 20 Information acquisition unit, 11 Power capacity requirement acquisition unit, 12 Power source information acquisition unit, 13 Procurement source determination unit, 14 Procurement source memory unit, 21 System information acquisition unit, 22 Procurement source information acquisition unit, 23 Power source activation condition acquisition unit, 24 Activation content determination unit, 25 Activation content memory unit, 100 Power source use determination system, 200 Power supply management system, 300 Power supply control system.

Claims

1. A power source determination device that determines a power source to be activated from among power sources connected to a power grid and an amount of power generated by the power source, calculate an output adjustment direction and an output adjustment amount for each power source based on system status information indicating the state of the power system and the output adjustment capacity of each power source connected to the power system, calculate an evaluation value for each power source based on the output adjustment price and greenhouse gas emission characteristics of each power source connected to the power system, and determine an operation power source, which is a power source to be activated, and the power generation amount of each operation power source based on the output adjustment direction, the output adjustment amount, and the evaluation value of each power source; A device for determining a power source to be activated.

2. an information acquisition unit that acquires the grid status information, the output adjustment capacity, the output adjustment price, and the greenhouse gas emission characteristics, as well as the power generation capacity of a power source determined as a supplier of electricity to be supplied to a consumer; an operation content determination unit that calculates the output adjustment direction, the output adjustment amount, and the evaluation value of each power source based on the information acquired by the information acquisition unit, and determines the operation power source and the power generation amount of each of the operation power sources based on the output adjustment direction, the output adjustment amount, and the evaluation value of each power source and preset constraints; The device for determining the power source to be activated according to claim 1, further comprising:

3. the constraints include constraints on the evaluation values; 3. The device for determining a power source to be activated according to claim 2.

4. The constraints include an upper limit on the total amount of greenhouse gas emissions when each of the power generating sources generates electricity.

3. The device for determining a power source to be activated according to claim 2.

5. the constraints include an upper limit on the total amount of greenhouse gas emissions when each of the power generating sources generates electricity, and an upper limit on the total amount of electricity charges incurred as a result of the power generation by the power generating sources; 3. The device for determining a power source to be activated according to claim 2.

6. The constraint is set so that the total value of greenhouse gas emissions when each of the power generating sources generates electricity is minimized.

3. The device for determining a power source to be activated according to claim 2.

7. the power system status information includes information on a balance state between the demand and supply of power in the power system, the power generation content determination unit determines the power generation amounts of the power sources and the power generation amounts of the power sources so as to reduce the difference between the demand and supply of power in the power grid while satisfying the constraints.

7. The device for determining a power source to be activated according to claim 2.

8. the system state information includes information on a fluctuation state of a frequency in the power system, the generation content determination unit determines the generation power sources and the amounts of power generated by each of the generation power sources so that the frequency in the power grid is a predetermined appropriate value while satisfying the constraints; 7. The device for determining a power source to be activated according to claim 2.

9. the grid status information includes information on a congestion state of the power grid, the power generation content determination unit determines the power generation amounts of the power generation sources and the power generation amounts of the power generation sources so as to eliminate the congestion state of the power grid while satisfying the constraints.

7. The device for determining a power source to be activated according to claim 2.

10. A power supply determination device that determines a power supply from which power to be supplied to a consumer is to be supplied from among power supplies connected to a power grid, a secured amount upper limit, which is the upper limit of the amount of electricity to be secured individually, for each electricity retailer based on the required power supply capacity determined based on the demand plan and the power generation capacity of each power source connected to the power grid; and an evaluation value of each power source connected to the power grid based on the greenhouse gas emission characteristics and electricity price of each power source connected to the power grid, and a power source to be used as a supplier is determined based on the secured amount upper limit for each electricity retailer, the amount of electricity requested by each of the electricity retailers, and the evaluation value of each power source. A power supply source determination device characterized by:

11. an information acquisition unit that acquires the required power supply capacity, the power generation capacity, the greenhouse gas emission characteristics, and the price; a supplier determination unit that calculates the upper limit of the secured amount and the evaluation value based on the information acquired by the information acquisition unit, and determines the power source to be the supplier based on the upper limit of the secured amount and the evaluation value, the amount of power requested by each of the electricity retailers, and preset constraints; The procurement source power source determination device according to claim 10, further comprising:

12. the constraints include constraints on the evaluation values; The apparatus for determining a source of power supply according to claim 11.

13. A power source use determination system that determines a power source and an amount of power generation that will generate electricity to be supplied to a consumer from among power sources connected to a power grid, a power source determination device that determines a power source from which to procure electricity to be supplied to the consumer based on a power source capacity requirement determined based on a demand plan, and the power generation capacity, greenhouse gas emission characteristics, and electricity price of each power source connected to the power grid; an operation power source determination device that calculates an output adjustment direction and an output adjustment amount for each power source based on system status information indicating the state of the power system and the output adjustment capacity of each power source connected to the power system, and also calculates an evaluation value for each power source based on the output adjustment price and greenhouse gas emission characteristics of each power source connected to the power system, and determines an operation power source to be activated from among the power sources determined as the procurement source by the procurement power source determination device based on the output adjustment direction, the output adjustment amount, and the evaluation value of each power source, and determines the power generation amount of each operation power source; A power source use determination system comprising:

14. A method for determining a power source to be activated, which is executed by a power source determination device that determines a power source to be activated from among power sources connected to a power grid and an amount of power generated by the power source, comprising: a first step of acquiring system status information indicating a state of the power system, and output adjustment capabilities, output adjustment prices, and greenhouse gas emission characteristics of each power source connected to the power system; a second step of calculating an output adjustment direction and an output adjustment amount for each power source based on the system status information and the output adjustment capacity of each power source connected to the power system, calculating an evaluation value for each power source based on the output adjustment price and the greenhouse gas emission characteristics of each power source connected to the power system, and determining an operation power source that is a power source to be activated and an amount of power generated by each operation power source based on the output adjustment direction, the output adjustment amount, and the evaluation value of each power source; A method for determining a power source to be activated, comprising:

15. A program for determining a power source to be activated that causes a computer to execute the processing of a power source determination device that determines a power source to be activated from among power sources connected to a power grid and the amount of power generated by the power source, a first step of acquiring system status information indicating a state of the power system, and output adjustment capabilities, output adjustment prices, and greenhouse gas emission characteristics of each power source connected to the power system; a second step of calculating an output adjustment direction and an output adjustment amount for each power source based on the system status information and the output adjustment capacity of each power source connected to the power system, calculating an evaluation value for each power source based on the output adjustment price and the greenhouse gas emission characteristics of each power source connected to the power system, and determining an operation power source that is a power source to be activated and an amount of power generated by each operation power source based on the output adjustment direction, the output adjustment amount, and the evaluation value of each power source; A program for determining a power source to be activated, which causes the computer to execute the program.

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