Hydrogen System Operation Planning System

Abstract

To provide a hydrogen system operation planning device capable of accurately creating an operation plan for achieving efficient operation in a hydrogen system.SOLUTION: In a hydrogen system operation planning device of an embodiment, a planning unit creates an operation plan based on a hydrogen shipment instruction regarding a hydrogen shipping amount for shipping hydrogen from a hydrogen system to the outside. The planning unit creates the operation plan so that a hydrogen advanced production amount for producing hydrogen by a hydrogen production device at a time before a reference time is equal to or less than an advanced shipping possible amount, a hydrogen delayed production amount for producing hydrogen by the hydrogen production device at a time after the reference time is equal to or less than a delayed shipping possible amount, and a reference-time hydrogen production amount for producing hydrogen by the hydrogen production device at the reference time becomes a value obtained by subtracting a total amount of the hydrogen advanced production amount and the hydrogen delayed production amount from a shipping reference amount.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] Embodiments of the present invention relate to a hydrogen system operation planning device.

Background Art

[0002] A hydrogen system includes a hydrogen production device that produces hydrogen using electric power, a hydrogen power generation device that generates electric power from hydrogen, and the like. When there is an excess supply of electric power in the power grid, the hydrogen system can demand electric power from the power grid and produce hydrogen with the hydrogen production device. Also, when there is an excess demand for electric power in the power grid, the hydrogen power generation device can generate electric power from hydrogen and supply it to the power grid. Therefore, the hydrogen system can contribute to the stabilization of the power grid.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] The hydrogen system executes operations according to an operation plan created in response to a command received from the outside. The operation plan is required to achieve efficient operations in the hydrogen system.

[0005] Therefore, the problem to be solved by the present invention is to provide a hydrogen system operation planning device that can accurately create an operation plan for realizing efficient operations in the hydrogen system.

Means for Solving the Problems

[0006] The hydrogen system operation planning device according to the embodiment is A hydrogen system operation planning device for planning the operation of a hydrogen system comprising a hydrogen production device that produces hydrogen using electricity and a hydrogen storage device that stores the hydrogen produced by the hydrogen production device, The planning department creates an operation plan based on the hydrogen shipment command regarding the amount of hydrogen shipped from the hydrogen system to the outside. It has, The aforementioned hydrogen shipment command is, Reference time shipment information relating to the reference time shipment amount of hydrogen shipped from the hydrogen system at a reference time, Information regarding the amount of hydrogen that can be shipped from the hydrogen system earlier than the reference time, out of the aforementioned reference quantity, and Information regarding delayed shipments of the aforementioned shipment standard quantity, specifically the amount of hydrogen that can be shipped from the hydrogen system at a later time than the aforementioned standard time, and Includes, The aforementioned planning department, The amount of hydrogen produced by the hydrogen production apparatus at a point in time prior to the aforementioned reference time is less than or equal to the amount that can be shipped earlier. The amount of hydrogen produced by the hydrogen production apparatus at a point in time later than the aforementioned reference time is less than or equal to the amount that can be shipped later. The operation plan is created such that the amount of hydrogen produced by the hydrogen production apparatus at the reference time is the difference between the standard shipment amount and the sum of the amount of hydrogen produced ahead of schedule and the amount of hydrogen produced behind schedule. [Brief explanation of the drawing]

[0007] [Figure 1] Figure 1 is a schematic block diagram showing the overall configuration including the hydrogen system 100 and the hydrogen system operation planning device 200 according to the first embodiment. [Figure 2] Figure 2 is a block diagram showing the configuration of the hydrogen system operation planning device 200 according to the first embodiment. [Figure 3] Figure 3 shows an example of a first operation plan FP1 and a second operation plan FP2 created in the hydrogen system operation planning device 200 according to the first embodiment. [Figure 4] Figure 4 shows an example of a first operation plan FP1 and a second operation plan FP2 created in the hydrogen system operation planning device 200 according to the first embodiment. [Figure 5] Figure 5 is a block diagram showing the configuration of the hydrogen system operation planning device 200b according to the second embodiment. [Figure 6] Figure 6 is a block diagram showing the configuration of the hydrogen system operation planning device 200c according to the third embodiment. [Figure 7] Figure 7 shows an example of a hydrogen shipment command CH input to the planning unit 270 and an operation plan FP created by the planning unit 270 in the hydrogen system operation planning device 200c according to the third embodiment. [Modes for carrying out the invention]

[0008] <First Embodiment> [A] Overall configuration Figure 1 is a schematic block diagram showing the overall configuration including the hydrogen system 100 and the hydrogen system operation planning device 200 according to the first embodiment.

[0009] [A-1] Hydrogen System 100 As shown in Figure 1, the hydrogen system 100 comprises a hydrogen production unit 110, a hydrogen storage unit 115, and a power generation unit 120, and is configured to operate according to an operation plan created by the hydrogen system operation planning unit 200. Each component of the hydrogen system 100 will be described in turn.

[0010] [A-1-1] Hydrogen production apparatus 110 The hydrogen production apparatus 110 is configured to produce hydrogen using electricity. The hydrogen production apparatus 110 is, for example, a hydrogen electrolyzer, which produces hydrogen by electrolyzing water. Here, the hydrogen production apparatus 110 is configured to produce hydrogen using at least one of the electricity supplied from the power grid 10 and the electricity supplied from the power generator 120.

[0011] [A-1-2] Hydrogen storage device 115 The hydrogen storage device 115 is configured to store the hydrogen produced by the hydrogen production device 110. The hydrogen storage device 115 is, for example, a gas tank that stores hydrogen gas. Here, the hydrogen storage device 115 uses at least one of the electric power supplied from the power system 10 and the electric power supplied from the power generation device 120 to compress and store, for example, the hydrogen gas produced by the hydrogen production device 110. In addition to this, the hydrogen storage device 115 may be, for example, a liquefied tank configured to store liquefied hydrogen. The hydrogen stored in the hydrogen storage device 115 is supplied as fuel to the hydrogen power generation device 121 and is also supplied to the hydrogen distribution network 300.

[0012] [A-1-3] Power generation device 120 The power generation device 120 includes a hydrogen power generation device 121 and a renewable energy power generation device 123 and is configured to generate electric power. The electric power generated in the power generation device 120 is supplied to the power system 10.

[0013] Among the power generation devices 120, the hydrogen power generation device 121 generates electric power using the hydrogen produced by the hydrogen production device 110. The hydrogen power generation device 121 is, for example, a fuel cell device in which hydrogen supplied to the hydrogen electrode and oxygen supplied to the oxygen electrode react through an electrolyte membrane to generate electric power. The hydrogen power generation device 121 uses the electric power supplied from the power system 10 for the generation of electric power. Also, in the hydrogen power generation device 121, hot water is generated by the heat generated during power generation. The hot water generated in the hydrogen power generation device 121 is supplied to the hot water distribution network 400.

[0014] Among the power generation devices 120, the renewable energy power generation device 123 generates electric power from renewable energy. The renewable energy power generation device 123 is, for example, a solar power generation device that generates electric power by receiving sunlight with solar panels and performing photoelectric conversion. In addition to this, the renewable energy power generation device 123 may be a wind power generation device, a biomass power generation device, or the like. The electric power generated in the renewable energy power generation device 123 is supplied to and utilized by the hydrogen production device 110 and the hydrogen storage device 115.

[0015] [A-2] Hydrogen System Operation Planning Device 200 The hydrogen system operation planning device 200 is provided to plan the operation of the hydrogen system 100. Here, information regarding each part constituting the hydrogen system 100 is input from the hydrogen system 100 to the hydrogen system operation planning device 200, and a command regarding the operation of the hydrogen system 100 is input from the outside. Then, based on the input information and command, the hydrogen system operation planning device 200 creates an operation plan for the hydrogen system 100 and outputs the operation plan to the hydrogen system 100.

[0016] FIG. 2 is a block diagram showing the configuration of the hydrogen system operation planning device 200 according to the first embodiment.

[0017] As shown in FIG. 2, the hydrogen system operation planning device 200 includes a classification unit 210, a first planning unit 220, and a second planning unit 230. The hydrogen system operation planning device 200 includes an arithmetic unit (computer) and a storage device, and is configured such that the arithmetic unit functions as the classification unit 210, the first planning unit 220, and the second planning unit 230 using a program stored in the storage device.

[0018] [A-2-1] Classification Unit 210 The classification unit 210 receives DR commands CD related to the electricity demand in the hydrogen system 100. DR commands CD are commands related to so-called "demand response," such as commands related to power differential DR, power DR, and energy DR. The classification unit 210 then classifies the input DR commands CD into a first DR group GD1 and a second DR group GD2, which has a lower priority than the first DR group GD1.

[0019] Furthermore, the classification unit 210 receives supply commands CS related to the supply of electricity generated by the hydrogen system 100. The supply commands CS include, for example, reverse power flow energy commands and reverse power flow power commands. The classification unit 210 then classifies the input supply command CS into a first supply command group GS1 and a second supply command group GS2 which has a lower priority than the first supply command group GS1.

[0020] The classification unit 210 performs the above classification according to predetermined classification criteria. For example, the classification unit 210 performs classification using evaluation values ​​that indicate economic value (e.g., DR rewards, electricity purchase amount, and profits corresponding to electricity sales amount) as classification criteria. In addition, the classification unit 210 may perform classification using the order in which the commands were received as classification criteria, or it may perform classification using evaluation values ​​that indicate environmental impact, such as carbon dioxide emissions or the percentage of renewable energy used effectively, as classification criteria. Evaluation values ​​include estimated values. Evaluation values ​​may also be weighted sums of multiple factors.

[0021] [A-2-2] 1st Planning Department 220 The first planning unit 220 creates a first operation plan FP1 (first command reflection plan) based on the contents of the DR command CD classified as the first DR group GD1 in the classification unit 210, and the contents of the supply command CS classified as the first supply command group GS1 in the classification unit 210.

[0022] In creating the first operational plan FP1, the contents of DR command CD, which is classified as the first DR group GD1, and the contents of supply command CS, which is classified as the first supply command group GS1, are reflected.

[0023] [A-2-3] 2nd Planning Department 230 The second planning unit 230 creates a second operation plan FP2 (second command reflection plan) based on the contents of DR command CD classified as the second DR group GD2 in the classification unit 210, and the contents of supply command CS classified as the second supply command group GS2 in the classification unit 210.

[0024] In creating the second operation plan FP, the contents of the DR command CD classified as the second DR group GD2, and the contents of the supply command CS classified as the second supply command group GS2 in the classification unit 210 are reflected in the first operation plan FP1 created in the first planning unit 220.

[0025] When creating the second operation plan FP2, the second planning unit 230 prioritizes the contents of the DR command CD classified as the first DR group GD1 over the contents of the DR command CD classified as the second DR group GD2 and the contents of the supply command CS classified as the second supply command group GS2.

[0026] The second operation plan FP2 created in the second planning unit 230 is displayed on the display screen of a display device (not shown) so that the planning portion reflecting each command can be recognized. The second operation plan FP2 created in the second planning unit 230 is also output to the hydrogen system 100, and the hydrogen system 100 operates according to the second operation plan FP2.

[0027] In addition to the commands input from the classification unit 210, the status of the hydrogen system 100 during the planning period is also considered when creating the first operation plan FP1 and the second operation plan FP2. Specifically, the amount of hydrogen that can be stored in the hydrogen storage device 115 during the planning period and the amount of electricity that can be generated by the renewable energy power generation device 123 during the planning period are considered. Furthermore, the response time required for the metered objects to respond in each part of the hydrogen system 100 may also be considered. The status of the hydrogen system 100 during the planning period may be, for example, an estimated value (predicted value) obtained by learning from past data. If the status of the hydrogen system 100 during the planning period does not allow for the complete reflection of the contents of the DR command CD and the supply command CS, then the first operation plan FP1 and the second operation plan FP2 will be created either by reflecting only a part of the contents of the DR command CD and the supply command CS, or without reflecting the contents of the DR command CD and the supply command CS.

[0028] Furthermore, the first operation plan FP1 and the second operation plan FP2 are optimized so that a predetermined evaluation value reaches its optimal value. The evaluation value is, for example, economic value. In addition, the evaluation value may be a value indicating the environmental impact, such as carbon dioxide emissions. The evaluation value includes estimated values. The evaluation value may also be a weighted sum of multiple factors.

[0029] Optimization may be performed by repeatedly creating the first operation plan FP1 and the second operation plan FP2 for a predetermined number of iterations. Alternatively, the speed of plan creation may be increased by lowering the optimization accuracy in the second planning unit 230 compared to the optimization accuracy in the first planning unit 220.

[0030] [B] Operation of the hydrogen system operation planning device 200 The operation of the hydrogen system operation planning device 200 of this embodiment will now be described.

[0031] [B-1] Case 1 Figure 3 shows an example of a first operation plan FP1 and a second operation plan FP2 created in the hydrogen system operation planning device 200 according to the first embodiment.

[0032] In Figure 3, the horizontal axis represents time t, and the vertical axis represents hydrogen production amount P (corresponding to the amount of electricity used in hydrogen production). Figure 3 shows the case where the planning period is from the start time t10 to the end time t20.

[0033] Figure 3 shows the case (Case 1) where, as DR command CD, a first raising DR command and a second raising DR command different from the first raising DR command are input to the classification unit 210, and the classification unit 210 classifies the first raising DR command into the first DR group GD1 and the second raising DR command into the second DR group GD2.

[0034] [B-1-1] Creation of the first operation plan FP1 In this case, when creating the first operation plan FP1, the first planning unit 220 reflects the contents of the first upward DR command classified as the first DR group GD1 in the classification unit 210, as shown in the upper part of Figure 3.

[0035] Here, the content of the first upward DR command is reflected in the pre-prepared operating plan for the planned period, for example, by increasing the amount of hydrogen produced P in the range from time t11 to time t12, thereby increasing the amount of electricity demanded by hydrogen production.

[0036] In creating the first operational plan FP1, the status of the hydrogen system 100 during the planning period is taken into consideration. For example, the increase in hydrogen production P and the time period during which hydrogen production P is increased are adjusted as appropriate so as not to exceed the upper limit of the amount of hydrogen that can be stored in the hydrogen storage device 115 (including the estimated amount) during the planning period. For example, the increase in hydrogen production P and the time period during which hydrogen production P is increased are set so that the upper limit of hydrogen storage is reached at the final time point t20 of the planning period.

[0037] [B-1-2] Creation of the second operation plan FP2 Next, when creating the second operation plan FP2, the second planning unit 230 reflects the contents of the second upward DR command classified as the second DR group GD2 in the classification unit 210, as shown in the lower part of Figure 3.

[0038] When creating the second operational plan FP2, the content of the first upward DR instruction classified as the first DR group GD1 takes precedence over the content of the second upward DR instruction classified as the second DR group GD2.

[0039] Therefore, for example, the content of the second upward DR directive is reflected in the time period excluding the time period (t11 to t12) that reflects the content of the first upward DR directive. Here, the content of the second upward DR directive is reflected by increasing the amount of hydrogen produced P in the range from time t15 to time t16, thereby increasing the amount of electricity demanded by hydrogen production.

[0040] In creating the second operation plan FP2, the status of the hydrogen system 100 during the planning period is taken into consideration, similar to the case in creating the first operation plan FP1. For example, if the content of the second upward DR command is reflected and exceeds the upper limit of the amount of hydrogen that can be stored in the hydrogen storage device 115 during the planning period (including the estimated amount), the amount of hydrogen produced P is reduced in a time period prior to the time period (t15 to t16) in which the content of the second upward DR command is reflected. In this case, the amount of hydrogen produced P is reduced in the range from time t13 to time t14, which is the time period excluding the time period (t11 to t12) in which the content of the first upward DR command is reflected.

[0041] [B-2] Case 2 Figure 4 shows an example of a first operation plan FP1 and a second operation plan FP2 created in the hydrogen system operation planning device 200 according to the first embodiment.

[0042] In Figure 4, as in Figure 3, the horizontal axis represents time t, and the vertical axis represents the amount of hydrogen produced P (corresponding to the amount of electricity used in hydrogen production). Also as in Figure 3, Figure 4 shows the case where the planning period ranges from the start time t10 to the final time t20.

[0043] Figure 4 shows the case (Case 2) where a downward DR command is input to the classification unit 210 as a DR command CD, and a reverse power flow command is input to the classification unit 210 as a supply command CS, and the classification unit 210 classifies the reverse power flow command into the first supply command group GS1 and the downward DR command into the second DR group GD2.

[0044] [B-2-1] Creation of the first operation plan FP1 In this case, when creating the first operation plan FP1, the first planning unit 220 reflects the contents of the reverse power flow command classified as the first supply command group GS1 in the classification unit 210, as shown in the upper part of Figure 4.

[0045] Here, the content of the reverse power flow command is reflected in the pre-prepared operation plan (basic operation plan) for the planned period, for example, by reducing the amount of hydrogen produced P to zero from time t13 to time t14, stopping the operation of the hydrogen production equipment 110, and selling electricity from the power generation equipment 120 to the power grid 10.

[0046] [B-2-2] Creation of the second operation plan FP2 Next, when creating the second operation plan FP2, the second planning unit 230 reflects the contents of the down DR commands classified as the second DR group GD2 in the classification unit 210, as shown in the lower part of Figure 4.

[0047] When creating the second operation plan FP2, the contents of the reverse power flow command classified as the first DR group GD1 take precedence over the contents of the downward DR command classified as the second DR group GD2.

[0048] Therefore, for example, the content of the downward DR command is reflected in the time period excluding the time period that reflects the content of the reverse power flow command (t13 to t14). Here, the content of the downward DR command is reflected by reducing the amount of hydrogen produced P in the range from time t15 to time t16, thereby reducing the amount of electricity demanded for hydrogen production.

[0049] In creating the second operation plan FP2, as described above, the status of the hydrogen system 100 during the planning period is taken into consideration. For example, if the amount of hydrogen stored in the hydrogen storage device 115 is below a set value when the contents of the reduced DR command are reflected during the planning period, the hydrogen production amount P is increased in a time period prior to the time period when the contents of the reduced DR command are reflected (t15 to t16). For example, the hydrogen production amount P is increased in the range from time t11 to time t12, which is the time period excluding the time period when the contents of the reverse power flow command are reflected (t13 to t14). At this time, the range of time periods in which the hydrogen production amount P is increased is adjusted as appropriate so as not to exceed the maximum hydrogen production amount Pmax that the hydrogen production device 110 can produce.

[0050] [C] Summary As described above, in the hydrogen system operation planning device 200 of this embodiment, the classification unit 210 classifies DR commands CD into a first DR group GD1 and a second DR group GD2, and classifies supply commands CS into a first supply command group GS1 and a second supply command group GS2. The first planning unit 220 creates a first operation plan FP1 that reflects the DR commands CD classified into the first DR group GD1 and the supply commands CS classified into the first supply command group GS1. The second planning unit 230 creates a second operation plan FP2 by reflecting the contents of the DR commands CD classified into the second DR group GD2 and the contents of the supply commands CS classified into the second supply command group GS2 into the first operation plan FP1. Here, when the second planning unit 230 creates the second operation plan FP2, it prioritizes the contents of supply orders CS classified under the first supply order group GS1 and the contents of DR orders CD classified under the first DR group GD1 over the contents of supply orders CS classified under the second supply order group GS2 when reflecting them in the first operation plan FP1.

[0051] Therefore, the hydrogen system operation planning device 200 of this embodiment can accurately create an operation plan that enables efficient operation of the hydrogen system 100 in response to the DR command CD and the supply command CS. As a result, this embodiment can contribute to the stabilization of the power grid 10.

[0052] <Second Embodiment> [A] Configuration of the hydrogen system operation planning device 200b Figure 5 is a block diagram showing the configuration of the hydrogen system operation planning device 200b according to the second embodiment.

[0053] As shown in Figure 5, the hydrogen system operation planning device 200b has a classification unit 210, a first planning unit 220, and a second planning unit 230, and unlike the first embodiment (see Figure 2), it also has a notification unit 250. Except for this point and related points, this embodiment is the same as the first embodiment. Therefore, explanations of redundant matters will be omitted as appropriate.

[0054] In the hydrogen system operation planning device 200b, similar to the classification unit 210, the first planning unit 220, and the second planning unit 230, the arithmetic unit constituting the hydrogen system operation planning device 200b is configured to function as a notification unit 250 by program.

[0055] The notification unit 250 is provided to notify external parties of the portion of the second operation plan FP2 created by the second planning unit 230 during the first plan creation T1 that corresponds to the DR command CD. The notification is made, for example, to an external organization such as an aggregator. The notification is made, for example, according to the input notification instruction.

[0056] As an example of the case shown in Figure 3, the notification unit 250 provides notifications, for example, regarding the planned portion of increasing electricity demand during the time period from time t11 to time t12 in response to the first upward DR command, and the planned portion of increasing electricity demand during the time period from time t15 to time t16 in response to the second upward DR command.

[0057] Information regarding the planning portion notified by the notification unit 250 is input into the first planning unit 220 and the second planning unit 230, and is given priority when updating the first operation plan FP1 and the second operation plan FP2 during the second planning creation time T2, which is later than the first planning creation time T1.

[0058] Here, when the first planning unit 220 updates the first operation plan FP1 during the second plan creation T2, it prioritizes the contents of the plan portion of the first plan creation T1 notified externally by the notification unit 250 over the contents of the DR command CD classified as the first DR group GD1.

[0059] When the second planning unit 230 updates the second operation plan FP2 during the second plan creation time T2, it prioritizes the contents of the plan portion from the first plan creation time T1, which the notification unit 250 has notified externally, over the contents of the DR command CD classified as the second DR group GD2.

[0060] As an example of the case shown in Figure 3, the first planning unit 220 updates the first operation plan FP1 while retaining, for example, the planning portion for increasing the power demand during the time period from time t11 to time t12 in response to the first DR increase command. Similarly, the second planning unit 230 updates the second operation plan FP2 while retaining, for example, the planning portion for increasing the power demand during the time period from time t11 to time t12 in response to the first DR increase command, and the planning portion for increasing the power demand during the time period from time t15 to time t16 in response to the second DR increase command.

[0061] Furthermore, the priority (weighting) for updating the first operation plan FP1 and the second operation plan FP2 may be changed depending on whether the information regarding the plan portion notified by the notification unit 250 is notified as confirmed information that will not change the plan, or as uncertain information that may change the plan. For example, if the plan portion is notified as confirmed information, the notified plan portion is retained without change, and the first operation plan FP1 and the second operation plan FP2 are updated. On the other hand, if the plan portion is notified as uncertain information, changes to the notified plan portion are permitted, and the first operation plan FP1 and the second operation plan FP2 are updated.

[0062] [B] Summary As described above, in the hydrogen system operation planning device 200b of this embodiment, information regarding the planning portion notified externally by the notification unit 250 is taken into consideration when updating the first operation plan FP1 and the second operation plan FP2.

[0063] Therefore, in the hydrogen system operation planning device 200b of this embodiment, even when the notification unit 250 notifies an external party about the operation plan of the hydrogen system 100, it is possible to accurately create an operation plan that realizes efficient operation of the hydrogen system 100. As a result, this embodiment can contribute to the stabilization of the power grid 10.

[0064] <Third Embodiment> [A] Configuration of the hydrogen system operation planning device 200b Figure 6 is a block diagram showing the configuration of the hydrogen system operation planning device 200c according to the third embodiment.

[0065] As shown in Figure 6, the hydrogen system operation planning device 200c has a planning unit 270. The hydrogen system operation planning device 200c includes a computing unit (computer), and is configured by program to function as the planning unit 270. Except for differences in the configuration of the hydrogen system operation planning device 200c and related points, this embodiment is the same as that of the first embodiment. Therefore, explanations of redundant matters will be omitted as appropriate.

[0066] The planning unit 270 receives a hydrogen shipment command CH regarding the amount of hydrogen to be shipped from the hydrogen storage device 115 of the hydrogen system 100 to the outside (hydrogen distribution network 300 (see Figure 1)), and creates an operation plan FP (shipment command reflection plan) based on the input hydrogen shipment command CH. The planning unit 270 then outputs the operation plan FP to the hydrogen system 100.

[0067] Figure 7 shows an example of a hydrogen shipment command CH input to the planning unit 270 and an operation plan FP created by the planning unit 270 in the hydrogen system operation planning device 200c according to the third embodiment.

[0068] The upper part of Figure 7 shows the hydrogen shipment command CH input to the planning unit 270, with the horizontal axis representing time t and the vertical axis representing the hydrogen shipment amount S. In contrast, the lower part of Figure 7 shows the operation plan FP created by the planning unit 270, with the horizontal axis representing time t and the vertical axis representing the hydrogen production amount FS.

[0069] As shown in the upper part of Figure 7, the hydrogen shipment command CH includes reference time shipment information for the reference shipment amount S0, accelerated shipment information for the amount that can be shipped earlier Sb, and delayed shipment information for the amount that can be shipped later Sa.

[0070] The standard shipment quantity S0 is the amount of hydrogen to be shipped from the hydrogen system 100 to an external source at reference time t0. Specifically, the standard shipment quantity S0 corresponds to the number of hydrogen tank trailers (hydrogen transport vehicles) (shipping capacity) that are scheduled to be ready to ship from the hydrogen system 100 at reference time t0.

[0071] The amount that can be shipped ahead of schedule Sb is the amount of hydrogen that can be shipped from the hydrogen system 100 at time tb, which is earlier than the reference time t0, out of the reference shipment baseline amount S0. Specifically, the amount that can be shipped ahead of schedule Sb corresponds to the number of hydrogen tank trailers (shipping capacity) that are scheduled to receive shipments from the hydrogen system 100 at reference time t0, and which may be waiting to ship at time tb, which is earlier than the reference time t0.

[0072] The amount of hydrogen that can be delayed for shipment, Sa, is the amount of hydrogen that can be shipped from the hydrogen system 100 at a time ta that is later than the reference time t0, out of the reference shipment base amount S0. Specifically, the amount of hydrogen that can be delayed for shipment, Sa, corresponds to the number of hydrogen tank trailers (shipping capacity) that are scheduled to receive shipments from the hydrogen system 100 at reference time t0, and which may be waiting to ship at a time ta that is later than the reference time t0.

[0073] As shown in the upper part of Figure 7, the planning unit 270 creates an operation plan FP for the hydrogen system 100 based on the hydrogen shipment command CH, which includes reference time shipment information for the standard shipment amount S0, accelerated shipment information for the amount that can be shipped earlier Sb, and delayed shipment information for the amount that can be shipped later Sa.

[0074] Here, the planning unit 270 creates an operation plan FP for the hydrogen production amount brought forward Pb, the hydrogen production amount brought back Pa, and the reference time hydrogen production amount P0, as shown in the lower part of Figure 7.

[0075] The amount of hydrogen to be produced ahead of schedule, Pb, is the amount of hydrogen produced by the hydrogen production equipment 110 of the hydrogen system 100 at time tb, which is earlier than the reference time t0. The planning unit 270 sets the amount of hydrogen to be produced ahead of schedule, Pb, to be less than or equal to the amount of hydrogen that can be shipped ahead of schedule, Sb.

[0076] The delayed hydrogen production amount Pa is the amount of hydrogen produced by the hydrogen production equipment 110 of the hydrogen system 100 at a time ta that is later than the reference time t0. The planning unit 270 sets the delayed hydrogen production amount Pa to be less than or equal to the amount Sa that can be shipped later.

[0077] The reference time hydrogen production amount P0 is the amount of hydrogen produced by the hydrogen production device 110 of the hydrogen system 100 at reference time t0. The planning unit 270 sets the reference time hydrogen production amount P0 so that it is equal to the difference between the shipment reference amount S0 and the sum of the hydrogen production amount brought forward Pb and the hydrogen production amount brought back Pa.

[0078] In creating the operational plan FP, the status of the hydrogen system 100 during the planned period (between tb and ta) is taken into consideration. Specifically, this includes the amount of hydrogen that can be stored in the hydrogen storage device 115 during the planned period, and the amount of electricity that can be generated by the renewable energy power generation device 123 during the planned period. The status of the hydrogen system 100 during the planned period may be an estimated value (predicted value) obtained by learning from past data, for example.

[0079] [B] Summary As described above, in the hydrogen system operation planning device 200c of this embodiment, the planning unit 270 creates an operation plan FP for the hydrogen system 100 based on a hydrogen shipment command relating to the amount of hydrogen shipped from the hydrogen system 100 to the outside. Here, the planning unit 270 creates an operation plan FP such that the amount of hydrogen produced ahead of schedule Pb is less than or equal to the amount that can be shipped ahead of schedule Sb, the amount of hydrogen produced behind schedule Pa is less than or equal to the amount that can be shipped behind schedule Sa, and the amount of hydrogen produced at the reference time P0 is the difference between the shipment reference amount S0 and the sum of the amount of hydrogen produced ahead of schedule Pb and the amount of hydrogen produced behind schedule Pa.

[0080] Therefore, the hydrogen system operation planning device 200c of this embodiment can accurately create an operation plan FP for the hydrogen system 100 according to the situation of shipping hydrogen from the hydrogen system 100 to the outside.

[0081] As described in the first and second embodiments, the planning unit 270 may create the operation plan FP while taking into consideration the DR command CD and the supply command CS.

[0082] <Other> While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols]

[0083] 10: Power grid, 100: Hydrogen system, 110: Hydrogen production equipment, 115: Hydrogen storage equipment, 120: Power generation equipment, 121: Hydrogen power generation equipment, 123: Renewable energy power generation equipment, 200: Hydrogen system operation planning equipment, 200b: Hydrogen system operation planning equipment, 200c: Hydrogen system operation planning equipment, 210: Classification department, 220: First planning department, 230: Second planning department, 250: Notification department, 270: Planning department, 300: Hydrogen distribution network, 400: Hot water distribution network.

Claims

[Claim 1] A hydrogen system operation planning device for planning the operation of a hydrogen system comprising a hydrogen production device that produces hydrogen using electricity and a hydrogen storage device that stores the hydrogen produced by the hydrogen production device, The planning department creates an operation plan based on the hydrogen shipment command regarding the amount of hydrogen shipped from the hydrogen system to the outside. It has, The aforementioned hydrogen shipment command is, Reference time shipment information relating to the reference time shipment amount of hydrogen shipped from the hydrogen system at a reference time, Information regarding the amount of hydrogen that can be shipped from the hydrogen system earlier than the reference time, out of the aforementioned reference quantity, and Information regarding delayed shipments of the aforementioned shipment standard quantity, specifically the amount of hydrogen that can be shipped from the hydrogen system at a later time than the aforementioned standard time, and Includes, The aforementioned planning department, The amount of hydrogen produced by the hydrogen production apparatus at a point in time prior to the aforementioned reference time is less than or equal to the amount that can be shipped earlier. The amount of hydrogen produced by the hydrogen production apparatus at a point in time later than the aforementioned reference time is less than or equal to the amount that can be shipped later. The operation plan is created such that the amount of hydrogen produced by the hydrogen production apparatus at the reference time is the difference between the standard shipment amount and the sum of the amount of hydrogen produced ahead of schedule and the amount of hydrogen produced behind schedule. Hydrogen system operation planning device.

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