Hydrogen system operation planning device

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] An embodiment of the present invention relates to a hydrogen system operation planning device. [Background technology]

[0002] A hydrogen system includes a hydrogen production device that produces hydrogen using electricity, a hydrogen power generation device that generates electricity from hydrogen, and other components. When there is an excess supply of electricity in the power grid, the hydrogen system can demand electricity from the power grid and produce hydrogen in the hydrogen production device. Also, when there is an excess demand for electricity in the power grid, the hydrogen power generation device can generate electricity 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] WO2020 / 203520 [Patent Document 2] WO2020 / 179849 Summary of the Invention [Problem to be solved by the invention]

[0004] The hydrogen system operates according to an operation plan created in response to external commands, and the operation plan must ensure efficient operation of 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 that realizes efficient operation in a hydrogen system. [Means for solving the problem]

[0006] The hydrogen system operation planning device of the embodiment includes: A hydrogen system operation planning device that plans the operation of a hydrogen system that includes a hydrogen production device that produces hydrogen using electric power and a hydrogen storage device that stores hydrogen produced by the hydrogen production device, a planning unit that creates an operation plan based on a hydrogen shipping command regarding the amount of hydrogen shipped from the hydrogen system to the outside; and The hydrogen shipping command is Standard shipping information regarding a standard shipping amount of hydrogen to be shipped from the hydrogen system at a standard time; Advance shipping information regarding an amount of the shipping standard amount of hydrogen that can be shipped from the hydrogen system at a time earlier than the reference time; and delayed shipping information regarding a delayed shipping amount of hydrogen that can be shipped from the hydrogen system at a time later than the reference time, out of the shipping reference amount; Including, The planning unit the amount of hydrogen produced by the hydrogen production device at a time point prior to the reference time is equal to or less than the amount of hydrogen that can be shipped forward, the delayed production amount of hydrogen produced by the hydrogen production device at a time later than the reference time is equal to or less than the delayed shipment amount, The operation plan is created so that the reference time hydrogen production volume produced by the hydrogen production device at the reference time is the difference between the shipping reference volume and the total volume of the advanced hydrogen production volume and the delayed hydrogen production volume. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a block diagram that schematically shows the overall configuration including a hydrogen system 100 and a hydrogen system operation planning device 200 according to the first embodiment. [Figure 2] FIG. 2 is a block diagram showing the configuration of a hydrogen system operation planning device 200 according to the first embodiment. [Figure 3] FIG. 3 is a diagram showing an example of a first operation plan FP1 and a second operation plan FP2 created by the hydrogen system operation planning device 200 according to the first embodiment. [Figure 4] FIG. 4 is a diagram showing an example of a first operation plan FP1 and a second operation plan FP2 created by the hydrogen system operation planning device 200 according to the first embodiment. [Figure 5] FIG. 5 is a block diagram showing the configuration of a hydrogen system operation planning device 200b according to the second embodiment. [Figure 6] FIG. 6 is a block diagram showing the configuration of a hydrogen system operation planning device 200c according to the third embodiment. [Figure 7] FIG. 7 is a diagram showing an example of a hydrogen shipping 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. DETAILED DESCRIPTION OF THE INVENTION

[0008] First Embodiment [A] Overall configuration FIG. 1 is a block diagram that schematically shows the overall configuration including a hydrogen system 100 and a 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 device 110, a hydrogen storage device 115, and a power generation device 120, and is configured to carry out operation according to an operation plan created by a hydrogen system operation planning device 200. Each component of the hydrogen system 100 will be explained in turn.

[0010] [A-1-1] Hydrogen production device 110 The hydrogen production device 110 is configured to produce hydrogen using electric power. The hydrogen production device 110 is, for example, a hydrogen electrolysis device that generates hydrogen by electrolyzing water. Here, the hydrogen production device 110 is configured to produce hydrogen using at least one of electric power supplied from the power system 10 (power grid) and electric power supplied from the power generation device 120.

[0011] [A-1-2] Hydrogen storage device 115 The hydrogen storage device 115 is configured to store hydrogen produced by the hydrogen production device 110. The hydrogen storage device 115 is, for example, a gas tank and stores hydrogen gas. Here, the hydrogen storage device 115 compresses and stores, for example, the hydrogen gas produced by the hydrogen production device 110 using at least one of power supplied from the power grid 10 and power supplied from the power generation device 120. Alternatively, the hydrogen storage device 115 may be, for example, a liquefaction tank and configured to store liquefied hydrogen. The hydrogen stored in the hydrogen storage device 115 is supplied to the hydrogen power generation device 121 as fuel and also 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 electric power system 10.

[0013] Of the power generation devices 120, the hydrogen power generation device 121 generates electricity using hydrogen produced by the hydrogen production device 110. The hydrogen power generation device 121 is, for example, a fuel cell device, and generates electricity by reacting hydrogen supplied to a hydrogen electrode with oxygen supplied to an oxygen electrode via an electrolyte membrane. The hydrogen power generation device 121 uses electricity supplied from the power system 10 to generate electricity. The hydrogen power generation device 121 also generates hot water using heat generated by the power generation. The hot water generated by the hydrogen power generation device 121 is supplied to the hot water distribution network 400.

[0014] Of 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 receives sunlight with a solar panel and generates electric power by photoelectric conversion. Alternatively, 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 the hydrogen production device 110 and the hydrogen storage device 115 and utilized.

[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 that constitutes the hydrogen system 100 is input from the hydrogen system 100 to the hydrogen system operation planning device 200, and commands regarding the operation of the hydrogen system 100 are input from outside. Then, the hydrogen system operation planning device 200 creates an operation plan for the hydrogen system 100 based on the input information and commands, and outputs the operation plan to the hydrogen system 100.

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

[0017] 2, the hydrogen system operation planning device 200 has 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 so 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 section 210 The classification unit 210 receives a DR command CD related to the demand for power in the hydrogen system 100. The DR command CD is a command related to so-called "demand response (consumer response)," and is, for example, a command related to a power differential DR, a power DR, and an energy DR. The classification unit 210 then classifies the input DR command CD into a first DR group GD1 and a second DR group GD2 that has a lower priority than the first DR group GD1.

[0019] The classification unit 210 also receives a supply command CS regarding the supply of power generated by the hydrogen system 100. The supply command CS may be, for example, a reverse flow power amount command, a reverse flow power command, or the like. Then, the classification unit 210 classifies the input supply command CS into a first supply command group GS1 and a second supply command group GS2 that 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 an evaluation value indicating economic value (e.g., DR remuneration, power purchase amount, and profit according to the power sale amount) as the classification criterion. In addition to this, the classification unit 210 may perform classification using the order in which commands are received as the classification criterion, or may perform classification using an evaluation value indicating an impact on the environment, such as carbon dioxide emissions or the rate of effective use of renewable energy. The evaluation value includes an estimated value. The evaluation value may be a weighted sum of multiple factors.

[0021] [A-2-2] First 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 into the first DR group GD1 by the classification unit 210 and the contents of the supply command CS classified into the first supply command group GS1 by the classification unit 210.

[0022] In creating the first operation plan FP1, the contents of the DR commands CD classified into the first DR group GD1 and the contents of the supply commands CS classified into the first supply command group GS1 are reflected.

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

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

[0025] When creating the second operation plan FP2, the second planning unit 230 prioritizes the contents of the DR commands CD classified into the first DR group GD1 over 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.

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

[0027] In generating the first operation plan FP1 and the second operation plan FP2, in addition to the commands input from the classification unit 210, the status of the hydrogen system 100 during the target planning period is taken into consideration. Specifically, the amount of hydrogen that can be stored in the hydrogen storage device 115 during the target planning period and the amount of power that can be generated by the renewable energy power generation device 123 during the target planning period are taken into consideration. The response time of the measured objects in each component of the hydrogen system 100 may also be taken into consideration. The status of the hydrogen system 100 during the target planning period may be, for example, an estimated value (predicted value) obtained by learning past data. If the content of the DR command CD and the supply command CS cannot be fully reflected due to the status of the hydrogen system 100 during the target planning period, the first operation plan FP1 and the second operation plan FP2 are naturally generated by reflecting part of the content of the DR command CD and the supply command CS or by not reflecting the content 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 becomes an optimal value. The evaluation value is, for example, an economic value. Alternatively, the evaluation value may be a value indicating an impact on the environment, such as carbon dioxide emissions. The evaluation value includes an estimated value. The evaluation value may be a weighted sum of multiple factors.

[0029] The optimization may be performed by repeating the creation of the first operation plan FP1 and the second operation plan FP2 a predetermined number of times. In addition, the speed of the plan creation may be increased by lowering the accuracy of the optimization in the second planning unit 230 compared to the accuracy of the optimization 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 be described.

[0031] [B-1] Case 1 FIG. 3 is a diagram showing an example of a first operation plan FP1 and a second operation plan FP2 created by the hydrogen system operation planning device 200 according to the first embodiment.

[0032] In Fig. 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). Fig. 3 shows a case where the planning period ranges from a start time t10 to an end time t20.

[0033] Figure 3 shows a case where, when 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 as DR commands CD, the classification unit 210 classifies the first raising DR command into a first DR group GD1 and the classification unit 210 classifies the second raising DR command into a second DR group GD2 (case 1).

[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 into the first DR group GD1 by the classification unit 210, as shown in the upper part of Figure 3.

[0035] Here, in the operation plan prepared in advance for the planned period, the contents of the first upward DR command are reflected by, for example, increasing the hydrogen production volume P in the range from time t11 to time t12 to increase the amount of electricity required for hydrogen production.

[0036] The first operating plan FP1 is created taking into consideration the status of the hydrogen system 100 during the planning period. For example, the increase in the hydrogen production rate P and the time period during which the hydrogen production rate P is increased are adjusted as appropriate so as not to exceed the upper limit of the amount of hydrogen (including the estimated amount) that can be stored in the hydrogen storage device 115 during the planning period. For example, the increase in the hydrogen production rate P and the time period during which the hydrogen production rate P is increased are set so that the upper limit of the hydrogen storage amount 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 into the second DR group GD2 by the classification unit 210, as shown in the lower part of Figure 3.

[0038] When creating the second operation plan FP2, the content of the first increasing DR command classified into the first DR group GD1 takes priority over the content of the second increasing DR command classified into the second DR group GD2.

[0039] Therefore, for example, the content of the second upward DR command is reflected in the time period excluding the time period (from time t11 to time t12) in which the content of the first upward DR command is reflected. Here, the content of the second upward DR command is reflected by increasing the hydrogen production amount P in the range from time t15 to time t16 to increase the amount of electricity required for 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, as in creating the first operation plan FP1. For example, if the amount of hydrogen storage (including the estimated amount) that can be stored in the hydrogen storage device 115 during the planning period is exceeded when the second upward DR command is reflected, the hydrogen production rate P is reduced in a time period prior to the time period (from t15 to t16) when the second upward DR command is reflected. Here, the hydrogen production rate P is reduced in the range from time t13 to time t14, which is the time period excluding the time period (from t11 to t12) when the first upward DR command is reflected.

[0041] [B-2] Case 2 FIG. 4 is a diagram showing an example of a first operation plan FP1 and a second operation plan FP2 created by the hydrogen system operation planning device 200 according to the first embodiment.

[0042] In Fig. 4, as in Fig. 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). As in Fig. 3, Fig. 4 also shows a case where the planning period ranges from the start time t10 to the end time t20.

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

[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 commands classified into the first supply command group GS1 by the classification unit 210, as shown in the upper part of Figure 4.

[0045] Here, in an operation plan (basic operation plan) prepared in advance for the planned period, the contents of the reverse flow command are reflected by, for example, reducing the hydrogen production amount P to zero between time t13 and time t14, stopping the operation of the hydrogen production device 110, and selling electricity from the power generation device 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 downward DR commands classified into the second DR group GD2 by the classification unit 210, as shown in the lower part of FIG.

[0047] When the second operation plan FP2 is created, the content of the reverse power flow command classified into the first DR group GD1 takes priority over the content of the downward DR command classified into 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 (from time t13 to time t14) in which the content of the reverse power flow command is reflected. Here, the content of the downward DR command is reflected by reducing the hydrogen production amount P in the range from time t15 to time t16, thereby reducing the amount of power required for hydrogen production.

[0049] As described above, when creating the second operation plan FP2, 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 equal to or less than the set value when the content of the downward DR command is reflected during the planning period, the hydrogen production rate P is increased during a time period prior to the time period when the content of the downward DR command is reflected (from t15 to t16). For example, the hydrogen production rate P is increased during the range from time t11 to time t12, which is the time period excluding the time period when the content of the reverse power flow command is reflected (from t13 to t14). At this time, the range of the time period during which the hydrogen production rate P is increased is appropriately adjusted so as not to exceed the maximum hydrogen production rate Pmax at which the hydrogen production device 110 can produce hydrogen.

[0050] [C] Summary As described above, in the hydrogen system operation planning device 200 of this embodiment, the classification unit 210 classifies the DR commands CD into the first DR group GD1 and the second DR group GD2, and classifies the supply commands CS into the first supply command group GS1 and the second supply command group GS2. The first planning unit 220 creates a first operation plan FP1 so as to reflect 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 in the first operation plan FP1. Here, when creating the second operation plan FP2, the second planning unit 230 reflects in the first operation plan FP1 the contents of the supply commands CS classified into the first supply command group GS1 and the contents of the DR commands CD classified into the first DR group GD1 in preference to the contents of the supply commands CS classified into the second supply command group GS2.

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

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

[0053] As shown in Fig. 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 Fig. 2), further has a notification unit 250. Except for this point and related points, this embodiment is similar to the first embodiment. Therefore, explanations of overlapping points will be omitted where 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 computing unit that constitutes the hydrogen system operation planning device 200b is configured to function as the notification unit 250 by a program.

[0055] The notification unit 250 is provided to notify the outside of a plan portion of the second operation plan FP2 created by the second planning unit 230 at the first plan creation time T1, which plan portion corresponds to the DR command CD. The notification is performed, for example, to an external organization such as an external aggregator. The notification is performed, for example, in accordance with an input notification instruction.

[0056] Taking the case shown in Figure 3 as an example, the notification unit 250 notifies, for example, the planned portion that increases the demand for electricity from time t11 to time t12 in response to the first upward DR command, and the planned portion that increases the demand for electricity from time t15 to time t16 in response to the second upward DR command.

[0057] The information regarding the plan portion notified by the notification unit 250 is input to the first planning unit 220 and the second planning unit 230, and is given priority when updating the first operating plan FP1 and the second operating plan FP2 at the second planning time T2, which is later than the first planning time T1.

[0058] Here, when the first planning unit 220 updates the first operation plan FP1 at the second plan creation time T2, the first planning unit 220 prioritizes the contents of the planning portion at the first plan creation time T1 notified to the outside by the notification unit 250 over the contents of the DR command CD classified into the first DR group GD1.

[0059] When updating the second operation plan FP2 at the second plan creation time T2, the second planning unit 230 gives priority to the contents of the plan portion at the first plan creation time T1 notified to the outside by the notification unit 250 over the contents of the DR command CD classified into the second DR group GD2.

[0060] 3, the first planning unit 220 updates the first operation plan FP1 while retaining, for example, a plan portion that increases power demand in the time period from time t11 to time t12 in response to the first upward DR command. Similarly, the second planning unit 230 updates the second operation plan FP2 while retaining, for example, a plan portion that increases power demand in the time period from time t11 to time t12 in response to the first upward DR command and a plan portion that increases power demand in the time period from time t15 to time t16 in response to the second upward DR command.

[0061] The priority (weighting) when updating the first operation plan FP1 and the second operation plan FP2 may be changed depending on whether the information on the plan portion notified by the notifying unit 250 is notified as confirmed information that does not change the plan or as unconfirmed information that may change the plan. For example, when the plan portion is notified as confirmed information, the notified plan portion is kept unchanged and the first operation plan FP1 and the second operation plan FP2 are updated. On the other hand, when the plan portion is notified as unconfirmed information, the notified plan portion is allowed to be changed 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 plan portion notified to the outside by the notification unit 250 is taken into consideration when updating the first operating plan FP1 and the second operating plan FP2.

[0063] Therefore, the hydrogen system operation planning device 200b of this embodiment can accurately create an operation plan that achieves efficient operation in the hydrogen system 100, even if the notification unit 250 has externally notified the hydrogen system 100 of the operation plan. As a result, this embodiment can contribute to stabilizing the power system 10 (power grid).

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

[0065] As shown in Fig. 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 to function as the planning unit 270 by a program. Except for differences in the configuration of the hydrogen system operation planning device 200c and related points, this embodiment is the same as the first embodiment. Therefore, explanations of overlapping matters will be omitted as appropriate.

[0066] The planning unit 270 receives a hydrogen shipping 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 FIG. 1)), and creates an operation plan FP (a plan reflecting the shipping command) based on the input hydrogen shipping command CH. The planning unit 270 then outputs the operation plan FP to the hydrogen system 100.

[0067] FIG. 7 is a diagram showing an example of a hydrogen shipping 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 Fig. 7 shows the hydrogen shipping command CH input to the planning unit 270, with the horizontal axis representing time t and the vertical axis representing the hydrogen shipping amount S. In contrast, the lower part of Fig. 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 FIG. 7, the hydrogen shipping command CH includes reference time shipping information regarding the shipping reference amount S0, advanced shipping information regarding the possible advanced shipping amount Sb, and delayed shipping information regarding the possible delayed shipping amount Sa.

[0070] The standard shipping amount S0 is the amount of hydrogen shipped from the hydrogen system 100 to the outside at reference time t0. Specifically, the standard shipping amount S0 corresponds to the number (shipping capacity) of hydrogen tank trailers (hydrogen transport vehicles) scheduled to be waiting for shipment from the hydrogen system 100 at reference time t0.

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

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

[0073] The planning unit 270 creates an operation plan FP for the hydrogen system 100, as shown in the lower part of Figure 7, based on a hydrogen shipping command CH which includes reference time shipping information regarding the shipping standard amount S0, advanced shipping information regarding the amount Sb that can be advanced in shipping, and delayed shipping information regarding the amount Sa that can be delayed in shipping, as shown in the upper part of Figure 7.

[0074] Here, as shown in the lower part of FIG. 7, the planner 270 creates an operation plan FP for the advanced hydrogen production amount Pb, the delayed hydrogen production amount Pa, and the reference-time hydrogen production amount P0.

[0075] The advanced hydrogen production amount Pb is the amount of hydrogen produced by the hydrogen production device 110 of the hydrogen system 100 at a time tb that is earlier than the reference time t0. The planning unit 270 sets the advanced hydrogen production amount Pb to be equal to or less than the amount Sb that can be advanced in shipment.

[0076] The delayed hydrogen production amount Pa is the amount of hydrogen produced by the hydrogen production device 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 equal to or less than the delivery delayed possible amount Sa.

[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 the difference between the shipping reference amount S0 and the total amount of the advanced hydrogen production amount Pb and the delayed hydrogen production amount Pa.

[0078] When creating the operation plan FP, the status of the hydrogen system 100 during the planning period (between tb and ta) is taken into consideration. Specifically, the amount of hydrogen that can be stored in the hydrogen storage device 115 during the planning period, the amount of power that can be generated by the renewable energy power generation device 123 during the planning period, etc. are taken into consideration. The status of the hydrogen system 100 during the planning period may be an estimated value (predicted value) obtained by learning 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 shipping command regarding the amount of hydrogen to be shipped from the hydrogen system 100 to the outside. Here, the planning unit 270 creates the operation plan FP so that the amount of advanced hydrogen production Pb is equal to or less than the amount of advanced shipment Sb, the amount of delayed hydrogen production Pa is equal to or less than the amount of delayed shipment Sa, and the standard time hydrogen production amount P0 is the difference between the standard shipment amount S0 and the sum of the amount of advanced hydrogen production Pb and the amount of delayed hydrogen production 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 depending on the situation in which hydrogen is shipped from the hydrogen system 100 to the outside.

[0081] As described in the first and second embodiments, the planner 270 may create the operation plan FP in consideration of the DR command CD and the supply command CS.

[0082] <Other> Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0083] 10: power system, 100: hydrogen system, 110: hydrogen production device, 115: hydrogen storage device, 120: power generation device, 121: hydrogen power generation device, 123: renewable energy power generation device, 200: hydrogen system operation planning device, 200b: hydrogen system operation planning device, 200c: hydrogen system operation planning device, 210: classification unit, 220: first planning unit, 230: second planning unit, 250: notification unit, 270: planning unit, 300: hydrogen distribution network, 400: hot water distribution network.

Claims

[Claim 1] A hydrogen system operation planning device that plans the operation of a hydrogen system that includes a hydrogen production device that produces hydrogen using electric power and a hydrogen storage device that stores hydrogen produced by the hydrogen production device, a planning unit that creates an operation plan based on a hydrogen shipping command regarding the amount of hydrogen shipped from the hydrogen system to the outside; and The hydrogen shipping command is Standard shipping information regarding a standard shipping amount of hydrogen to be shipped from the hydrogen system at a standard time; Advance shipping information regarding an amount of the shipping standard amount of hydrogen that can be shipped from the hydrogen system at a time earlier than the reference time; and delayed shipping information regarding a delayed shipping amount of hydrogen that can be shipped from the hydrogen system at a time later than the reference time, out of the shipping reference amount; Including, The planning unit the amount of hydrogen produced by the hydrogen production device at a time point prior to the reference time is equal to or less than the amount of hydrogen that can be shipped forward, the delayed production amount of hydrogen produced by the hydrogen production device at a time later than the reference time is equal to or less than the delayed shipment amount, The operation plan is created so that a reference-time hydrogen production amount for producing hydrogen by the hydrogen production device at the reference time is a value obtained by subtracting the total amount of the front-loaded hydrogen production amount and the back-loaded hydrogen production amount from the shipping reference amount. Hydrogen system operation planning device.

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