Patent Grant
12040620
This application is based upon and claims the benefit of priority from the prior Japanese Patent Application No. 2021-044050, filed on Mar. 17, 2021, the entire contents of which are incorporated herein by reference.
Embodiments described herein relate to an information processing apparatus, an information processing method, a non-transitory computer readable medium, and an information processing system.
In recent years, a renewable energy hydrogen system has attracted attention as an energy system which utilizes renewable energy as measures for reducing CO2 or measures for a business continuity plan (BCP) at the time of disaster. As a control method of the renewable energy hydrogen system, typically, a method (hysteresis band method) in which control is performed so that renewable energy is self-consumed as much as possible by combining the renewable energy hydrogen system with a storage battery is used. As a specific example, a method in which a hydrogen storage apparatus and a power generation apparatus within a consumer are controlled in view of electricity cost is known.
It is considered that operation in a long-term perspective will increase for the purpose of improving a utilization rate of renewable energy and achieving net zero of supply of power as economic rationality is more desired in the renewable energy hydrogen system.
According to one embodiment, an information processing apparatus includes: receiving circuitry and controlling circuitry.
The receiving circuitry is configured to receive operation data of an energy system, the energy system being capable of inputting and outputting power to and from a power line to which a power system and a load are connected. The energy system includes a hydrogen production apparatus producing hydrogen, a first hydrogen accumulation apparatus accumulating the hydrogen, a first power generation apparatus generating power using the hydrogen accumulated in the first hydrogen accumulation apparatus, and a storage battery capable of charging and discharging power.
The controlling circuitry is configured to determine, on a basis of the operation data, a process to be preferentially executed among at least two of processes including: a process of generating power in the first power generation apparatus, a process of producing hydrogen in the hydrogen production apparatus, a process of charging the storage battery, a process of discharging the storage battery, a process of transmitting power to the power system and a process of receiving power from the power system.
Embodiments of the present invention will be described below with reference to the drawings. In the respective drawings, the same reference numerals will be assigned to components having the same or equivalent functions and detailed description will be omitted as appropriate except expanded or changed processing.
The renewable energy hydrogen system 1 is connected (coupled) to a power line 7 which can receive and transmit (reverse power flow) power from and to a distribution system 8 (electric system). Reception of power from the distribution system 8 corresponds to power purchase, and transmission of power to the distribution system 8 corresponds to power selling.
In addition to the renewable energy hydrogen system 1, the solar power generation apparatus 2, the power consumer 3, the load apparatus 9, or the like, are connected (coupled) to the power line 7. The power consumer 3 corresponds to an example of a load which consumes power. The load apparatus 9 is an arbitrary load other than the power consumer 3. The load apparatus 9 may be, for example, an apparatus such as a motor, an arbitrary power consumption apparatus within a facility, or other apparatuses. The solar power generation apparatus 2 converts energy of sunlight into power and outputs the converted power to the power line 7. While one solar power generation apparatus 2, one power consumer 3 and one load apparatus 9 are illustrated in the example in
The storage battery 101 charges and discharges power in accordance with control information provided from the control apparatus 4. Charging and discharging include at least one of charging and discharging. In a case of charging, the storage battery 101 charges surplus power. The surplus power includes power which is not consumed at the power consumer 3 and the load apparatus 9 and left among power generated at the solar power generation apparatus 2 and power received from the distribution system 8 as an example. In a case of discharging, the storage battery 101 discharges power accumulated inside the power line 7. The discharged power is consumed at the power consumer 3 (load) or the load apparatus 9 or transmitted to the distribution system 8.
The hydrogen production apparatus 102 produces hydrogen using power supplied from the power line 7 (which may include power received from the distribution system 8) in accordance with the control information provided from the control apparatus 4. The hydrogen production apparatus 102 transmits the produced hydrogen to at least one of the hydrogen tank 103 and the hydrogen tank 106. The hydrogen production apparatus 102 produces hydrogen using power, for example, through an electrolytic method typified by alkaline water electrolysis.
The hydrogen tank 103 receives hydrogen produced at the hydrogen production apparatus 102 and stores the hydrogen inside. The hydrogen tank 106 receives hydrogen produced at the hydrogen production apparatus 102 and stores the hydrogen inside. The hydrogen tank 103 and the hydrogen tank 106 are high pressure hydrogen gas containers, hydrogen absorbing alloys, or the like. The hydrogen tank 103 has a function of providing the stored hydrogen to the fuel cell apparatus 104 and a function of measuring an amount of the stored hydrogen. The hydrogen tank 106 has a function of providing the stored hydrogen to the hydrogen supply apparatus 105 and a function of measuring an amount of the stored hydrogen.
The fuel cell apparatus 104 generates power using the hydrogen supplied from the hydrogen tank 103 and supplies the generated power to the power line 7. The fuel cell apparatus 104 is, for example, a solid polymer fuel cell, a solid oxide fuel cell, or the like. The fuel cell apparatus 104 is not limited to the fuel cell as long as the fuel cell apparatus has a function of generating power from hydrogen.
The hydrogen supply apparatus 105 has a function of receiving the hydrogen stored in the hydrogen tank 106 and supplying the received hydrogen to an external apparatus (first apparatus). The external apparatus is, for example, a hydrogen fuel cell vehicle (FCV). In this case, hydrogen can be used as a fuel of the fuel cell vehicle.
The control apparatus 4 of the renewable energy hydrogen system 1 includes an operation data collector 401, an operation data storage 402, a supply and demand balance determiner 403, a hydrogen storage plan input device 404, a hydrogen storage plan storage 405, a hydrogen storage plan fulfillment determiner 406, a power supply and demand plan input device 407, a power supply and demand plan storage 408, a power supply and demand plan fulfillment determiner 409, a controller 410 and a transmitter 411. The control apparatus 4 can perform communication with the renewable energy hydrogen system 1 or the energy system 10 via a communication network. The communication network may be either a wireless network or a wired network. The communication network may be either a wide area network such as the Internet, or a local area network such as a wireless local area network (LAN) and Ethernet.
The operation data collector 401 acquires operation data of the energy system 10. The operation data collector 401 corresponds to receiving circuitry or a receiver, which receives or collects the operation data. The operation data of the energy system 10 includes part or all of operation data of the storage battery 101, operation data of the hydrogen production apparatus 102, operation data of the fuel cell apparatus 104, operation data of the hydrogen tank 103, operation data of the hydrogen tank 106, operation data of the hydrogen supply apparatus 105, operation data of the solar power generation apparatus 2, operation data of the power consumer 3, operation data of the load apparatus 9, and operation data of the distribution system 8 as an example. The operation data may be acquired at regular intervals or at a timing at which operation of respective components (101 to 106) occurs. Alternatively, the operation data of the respective components may be acquired by transmitting an acquisition request of the operation data to the energy system 10 from the operation data collector 401.
The operation data of the storage battery 101 includes transition of the amount of power charged inside, history of charging and discharging (such as time and an amount of charged and discharged power), or the like, as an example. The operation data of the hydrogen production apparatus 102 includes an amount of power used for hydrogen production, history of production of hydrogen (such as time and an amount of produced hydrogen), or the like, as an example. The operation data of the fuel cell apparatus 104 includes history of power generation (such as time and an amount of generated power), or the like, as an example, and may further include an amount of hydrogen used for power generation. The operation data of the hydrogen tank 103 includes history of an amount of accumulated hydrogen (such as time and an amount of hydrogen), or the like, as an example. The operation data of the hydrogen tank 106 includes history of an amount of accumulated hydrogen (such as time and an amount of hydrogen), or the like, as an example. The operation data of the hydrogen supply apparatus 105 includes history of hydrogen provided to an external apparatus (such as time and an amount of hydrogen), or the like, as an example. The operation data of the solar power generation apparatus 2 includes history of power generation (such as time and an amount of generated power), or the like, as an example. The operation data of the power consumer 3 includes history of power consumption (such as time and an amount of power consumption), or the like, as an example. The operation data of the distribution system 8 includes history of an amount of power transmitted and received to and from the distribution system 8 (such as time and an amount of transmitted and received power), or the like.
The operation data storage 402 stores the operation data acquired by the operation data collector 401 inside. The operation data storage 402 may be an arbitrary storage apparatus such as a memory, a hard disk, an optical recording medium and a magnetic recording medium. The memory may be either a non-volatile memory or a volatile memory.
The supply and demand balance determiner 403 compares generated power (P_PV) generated by the solar power generation apparatus 2 and consumed power (P_LOAD) consumed by the load such as the power consumer 3 and the load apparatus 9 and determines whether the generated power (P_PV) is equal to or greater than the consumed power (P_LOAD). In other words, the supply and demand balance determiner 403 determines whether or not a value obtained by subtracting the consumed power (P_LOAD) from the generated power (P_PV) is equal to or greater than 0. The supply and demand balance determiner 403 provides a determination result to the controller 410.
The hydrogen storage plan input device 404 receives a plan (a hydrogen storage plan 5 or a second plan) regarding an amount of hydrogen to be accumulated in the hydrogen tank 106 from an input apparatus (not illustrated) and provides the hydrogen storage plan 5 to the hydrogen storage plan storage 405. The hydrogen storage plan storage 405 stores the hydrogen storage plan 5 inside. The hydrogen storage plan storage 405 is an arbitrary storage apparatus such as a memory, a hard disk, an optical recording medium and a magnetic recording medium. The memory may be either a non-volatile memory or a volatile memory. The input apparatus may be an operation terminal to be operated by an operator of the control apparatus 4 or a storage apparatus or a server on a communication network.
The hydrogen storage plan fulfillment determiner 406 determines whether the amount of hydrogen stored in the hydrogen tank 106 fulfills the hydrogen storage plan 5 at time at which determination is to be performed. The time at which determination is to be performed may be current time (for example, latest time at regular intervals) or time in the past or in the future. In a case of time in the future, the amount of stored hydrogen at time in the future may be predicted using a learned model, or the like. The hydrogen storage plan fulfillment determiner 406 determines whether or not the amount of hydrogen stored in the hydrogen tank 103 at time at which determination is to be performed is equal to or greater than a planned value (threshold) at time at which determination is to be performed in the hydrogen storage plan 5. The hydrogen storage plan fulfillment determiner 406 determines that the amount of hydrogen stored in the hydrogen tank 103 fulfills the hydrogen storage plan 5 in a case where the amount of stored hydrogen is equal to or greater than the planned value and determines that the amount of hydrogen stored in the hydrogen tank 103 does not fulfill the hydrogen storage plan 5 in a case where the amount of stored hydrogen is less than the planned value. The hydrogen storage plan fulfillment determiner 406 provides a determination result to the controller 410.
The power supply and demand plan input device 407 receives a plan (a power supply and demand plan 6 or a first plan) regarding an amount of power to be transmitted and received to and from the distribution system 8 from an input apparatus (not illustrated) and provides the power supply and demand plan 6 to the power supply and demand plan storage 408. The power supply and demand plan storage 408 stores the power supply and demand plan 6 inside. The power supply and demand plan storage 408 is an arbitrary storage apparatus such as a memory, a hard disk, an optical recording medium and a magnetic recording medium. The memory may be either a non-volatile memory or a volatile memory. The input apparatus may be an operation terminal to be operated by the operator of the control apparatus 4 or a storage apparatus or a server on a communication network.
The power supply and demand plan fulfillment determiner 409 determines whether the cumulative amount of power transmitted and received to and from the distribution system 8 at time at which determination is to be performed fulfills the power supply and demand plan 6. The time at which determination is to be performed may be current time (for example, latest time at regular intervals) or time in the past or in the future. In a case of time in the future, the cumulative amount of power at time in the future may be predicted using a learned model, or the like. The power supply and demand plan fulfillment determiner 409 determines whether or not the cumulative amount of power at time at which determination is to be performed is equal to or greater than a planned value (threshold) at time at which determination is to be performed in the power supply and demand plan 6. The power supply and demand plan fulfillment determiner 409 determines that the cumulative amount of power fulfills the power supply and demand plan 6 in a case where the cumulative amount of power is equal to or less than the planned value and determines that the cumulative amount of power does not fulfill the power supply and demand plan 6 in a case where the cumulative amount of power exceeds the planned value. The power supply and demand plan fulfillment determiner 409 provides a determination result to the controller 410.
The controller 410 acquires information indicating the determination results from the supply and demand balance determiner 403, the hydrogen storage plan fulfillment determiner 406 and the power supply and demand plan fulfillment determiner 409 and generates control information of the energy system 10 or control information of the renewable energy hydrogen system 1 on the basis of the acquired information. For example, the controller 410 determines a process to be preferentially executed among at least two processes including: power generation of the fuel cell apparatus 104, production of hydrogen to be accumulated in the hydrogen tank 106, production of hydrogen to be accumulated in the hydrogen tank 103, charging of the storage battery 101, discharging of the storage battery 101, selling power to the distribution system 8 (power system), purchasing power from the distribution system 8, and the like. In this event, the controller 410 may determine priority of at least two processes and determine which process is to be executed on the basis of the determined priority. The controller 410 generates control information for causing a corresponding component in the energy system 10 or the renewable energy hydrogen system 1 to execute the determined process. For example, in a case where it is determined to cause the hydrogen production apparatus 102 to produce hydrogen to be accumulated in the hydrogen tank 106, the controller 410 generates control information which instructs the hydrogen production apparatus 102 to produce a fixed output amount of hydrogen and accumulate the hydrogen in the hydrogen tank 106. The controller 410 provides the generated control information to the transmitter 411.
The transmitter 411 transmits the control information to the renewable energy hydrogen system 1. The renewable energy hydrogen system 1 or the energy system 10 includes a receiver which receives the control information and transmits the received control information to corresponding components (such as the storage battery 101, the hydrogen production apparatus 102, the fuel cell apparatus 104 and the hydrogen supply apparatus 105). There is also a case where the transmitter 411 transmits the control information to the load apparatus 9 or the power consumer 3.
An operation example of the control apparatus 4 will be described in detail below using
In step S1, the hydrogen storage plan fulfillment determiner 406 determines whether the hydrogen storage plan 5 is fulfilled on the basis of the amount of hydrogen stored in the hydrogen tank 106. In other words, the hydrogen storage plan fulfillment determiner 406 determines whether or not the amount of hydrogen stored in the hydrogen tank 106 is equal to or greater than a planned value.
In a case where the hydrogen storage plan 5 is fulfilled (S1: Yes), the power supply and demand plan fulfillment determiner 409 determines whether a cumulative amount of power transmitted and received to and from the distribution system 8 (cumulative amount of power) fulfills the power supply and demand plan 6 (S2). In other words, the power supply and demand plan fulfillment determiner 409 determines whether or not the cumulative amount of power is equal to or less than the planned value. In a case where the cumulative amount of power is equal to or less than the planned value (S2: Yes), the processing proceeds to a flowchart in
In a case where the hydrogen storage plan 5 is not fulfilled (S1: No), the power supply and demand plan fulfillment determiner 409 determines whether the cumulative amount of power fulfills the power supply and demand plan 6, that is, whether the cumulative amount of power is equal to or less than the planned value (S3). In a case where the cumulative amount of power is equal to or less than the planned value (S3: Yes), the processing proceeds to a flowchart in
[Case where Both Hydrogen Storage Plan 5 and Power Supply and Demand Plan 6 are Fulfilled]
In step S12, the controller 410 determines whether or not an absolute value of the difference between the amount of power generated through PV power generation and the amount of power consumption is equal to or less than a threshold (peak allowable value). In a case where the absolute value of the difference is equal to or less than the threshold, the controller 410 determines to purchase power (receive power from the distribution system 8) (S13). In a case where the absolute value is greater than the threshold, the controller 410 determines that a remaining amount of power of the storage battery 101 is equal to or greater than a lower limit threshold (S14). In a case where the remaining amount of power of the storage battery 101 is equal to or greater than the lower limit threshold, the controller 410 determines to discharge the storage battery 101 so that the absolute value of the difference between the amount of power generated through PV power generation and the amount of power consumption becomes equal to or less than the threshold (peak allowable value) (S15). In a case where the remaining amount of power of the storage battery 101 is less than the lower limit threshold, the controller 410 determines whether the amount of hydrogen in the hydrogen tank 103 is equal to or greater than the lower limit threshold (S16). In a case where the amount of hydrogen in the hydrogen tank 103 is equal to or greater than the lower limit threshold, the controller 410 determines to perform fuel cell power generation (FC power generation) by the fuel cell apparatus 104 so that the absolute value of the difference between the amount of power generated through PV power generation and the amount of power consumption becomes equal to or less than the threshold (peak allowable value) (S17). In a case where the amount of hydrogen in the hydrogen tank 103 is less than the lower limit threshold, the controller 410 determines that power cannot be covered by the renewable energy hydrogen system 1 (peak cut can be performed) and determines to purchase power (receive power from the distribution system 8) (S18).
The controller 410 generates control information which gives an instruction to execute the process determined in step S13, S15, S17 or S18 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information.
In this manner, the controller 410 determines priority in order of power purchase (S12: Yes), discharging of the storage battery (S15), FC power generation (S17) and power purchase (S18) in a case where the amount of power generated through PV power generation is insufficient. The controller 410 determines a process to be executed among these in accordance with the determined priority on the basis of the determination in step S12, S14 and S16 and transmits control information which gives an instruction to execute the determined process.
Note that in place of determining to purchase power in step S13 or S18, it is also possible to determine to transmit an operation stop instruction to the load such as the power consumer 3 and the load apparatus 9. In this case, the transmitter 411 transmits the operation stop instruction to the load such as the power consumer 3 and the load apparatus 9. The load stops operation in accordance with the operation stop instruction.
In step S21, the controller 410 determines whether the remaining amount of power of the storage battery 101 is less than an upper limit threshold (S21). In a case where the remaining amount of power of the storage battery 101 is less than the upper limit threshold, the controller 410 determines to charge the storage battery 101 with surplus power (power corresponding to the difference described above) of the power generated by PV power generation (S22). In a case where the remaining amount of power of the storage battery 101 is equal to or greater than the upper limit threshold, the controller 410 determines whether the amount of hydrogen in the hydrogen tank 106 is less than the upper limit threshold (S23). In a case where the amount of hydrogen in the hydrogen tank 106 is less than the upper limit threshold, the controller 410 determines to cause the hydrogen production apparatus to produce hydrogen (hydrogen to be supplied to the FCV) to be accumulated in the hydrogen tank 106 (S24). In a case where the amount of hydrogen in the hydrogen tank 106 is equal to or greater than the upper limit threshold, the controller 410 determines whether the amount of hydrogen in the hydrogen tank 103 is less than the upper limit threshold (S25). In a case where the amount of hydrogen in the hydrogen tank 106 is less than the upper limit threshold, the controller 410 determines to cause the fuel cell apparatus 104 to produce hydrogen (hydrogen for FC power generation) to be accumulated in the hydrogen tank 103 (S26). In a case where the amount of hydrogen in the hydrogen tank 106 is equal to or greater than the upper limit threshold, the controller 410 determines to sell power (transmit surplus power to the distribution system 8) (S27).
The controller 410 generates control information which gives an instruction to execute the process determined in step S13, S15, S17 or S18 and transmits the generated control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information.
In this manner, in a case where there is surplus power, the controller 410 determines priority in order of charging of the storage battery, production of hydrogen to be supplied to the FCV, production of hydrogen for FC, and power selling. The controller 410 determines the process to be executed among these in accordance with the determined priority on the basis of the determination in step S21, S23 and S25 and transmits control information which gives an instruction to execute the determined process.
Note that in place of determining to sell power in step S22, an operation start instruction (instruction to consume power) may be transmitted to the load such as the power consumer 3 and the load apparatus 9. In this case, the transmitter 411 transmits the operation start instruction to the load such as the power consumer 3 and the load apparatus 9. The load starts operation in accordance with the operation start instruction.
[Case where Hydrogen Storage Plan 5 is Fulfilled and Power Supply and Demand Plan 6 is not Fulfilled]
The supply and demand balance determiner 403 determines whether or not the amount of power generated through PV power generation is equal to or greater than the amount of power consumption of the load such as the power consumer 3 and the load apparatus 9 as determination of balance of supply and demand (S31). In other words, the supply and demand balance determiner 403 determines whether the amount of power generated through PV power generation is insufficient or there is a surplus amount of power generated through PV power generation. In a case where a difference obtained by subtracting the amount of power consumption from the amount of power generated through PV power generation is less than 0 (in a case where the amount of power generated through PV power generation is insufficient), the processing proceeds to step S32, and in a case where the difference is equal to or greater than 0 (in a case where there is a surplus amount of power generated through PV power generation), the processing proceeds to step S39.
Processing from step S32 to S38 is the same as the processing from step S12 to S18 in
The controller 410 generates control information which gives an instruction to execute the process determined in step S33, S35, S37 or S38 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information.
In this manner, in a case where the amount of power generated through PV power generation is insufficient, the controller 410 determines priority in order of power purchase (S33), discharging of the storage battery (S35), FC power generation (S37) and power purchase (S38). The controller 410 determines the process to be executed among these in accordance with the determined priority on the basis of the determination in step S32, S34 and S36 and transmits control information which gives an instruction to execute the determined process.
Meanwhile, in step S39, the controller 410 determines to sell power (transmit surplus power to the distribution system 8) (S39). The controller 410 generates control information which gives an instruction to execute the process determined in step S39 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411.
In this manner, the controller 410 determines to sell power with the highest priority in a case where there is surplus power.
[Case where Hydrogen Storage Plan 5 is not Fulfilled and Power Supply and Demand Plan 6 is Fulfilled]
The supply and demand balance determiner 403 determines whether or not the amount of power generated through PV power generation is equal to or greater than the amount of power consumption of the load such as the power consumer 3 and the load apparatus 9 as determination of balance of supply and demand (S41). In other words, the supply and demand balance determiner 403 determines whether the amount of power generated through PV power generation is insufficient or there is a surplus amount of power generated through PV power generation. In a case where a difference obtained by subtracting the amount of power consumption from the amount of power generated through PV power generation is less than 0 (in a case where the amount of power generated through PV power generation is insufficient), the processing proceeds to step S42, and in a case where the difference is equal to or greater than 0 (in a case where there is a surplus amount of power generated through PV power generation), the processing proceeds to step S51.
In step S42, the controller 410 determines to cause the hydrogen production apparatus 102 to operate to produce hydrogen to be supplied to a fuel cell vehicle (hydrogen to be accumulated in the hydrogen tank 106). The controller 410 transmits control information which gives an instruction to perform the determined operation to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information. In other words, the hydrogen production apparatus 102 produces hydrogen and accumulates the produced hydrogen in the hydrogen tank 106.
After the control information is transmitted in step S42, a difference is calculated by subtracting a sum of the amount of power consumption of the load such as the power consumer 3 and the load apparatus 9 and the amount of power consumption by production of hydrogen from the amount of power generated through PV power generation. It is determined whether an absolute value of the difference is equal to or less than a threshold (peak allowable value) (S43). In a case where the absolute value of the difference is equal to or less than the threshold, the controller 410 determines to purchase power (receive power from the distribution system 8) (S44). In other words, unless the difference (an amount of power required to be secured) exceeds the threshold (peak allowable value), power is purchased to secure power with the highest priority. In a case where the absolute value is greater than the threshold, the controller 410 determines whether the remaining amount of power of the storage battery 101 is equal to or greater than a lower limit threshold (S45). In a case where the remaining amount of power of the storage battery 101 is equal to or greater than the lower limit threshold, the controller 410 determines to discharge the storage battery 101 (S46). In a case where the remaining amount of power of the storage battery 101 is less than the lower limit threshold, the controller 410 determines whether the amount of hydrogen in the hydrogen tank 103 is equal to or greater than a lower limit threshold (S47). In a case where the amount of hydrogen in the hydrogen tank 103 is equal to or greater than the lower limit threshold, the controller 410 determines to cause the fuel cell apparatus 104 to perform fuel cell power generation (FC power generation) (S48). In a case where the amount of hydrogen in the hydrogen tank 103 is less than the lower limit threshold, the controller 410 determines that power cannot be covered with power generation or discharging in the renewable energy hydrogen system 1 and determines to purchase power (receive power from the distribution system 8) (S49).
The controller 410 generates control information which gives an instruction to execute the process determined in step S44, S46, S48 or S49 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information.
In this manner, in a case where the amount of power generated through PV power generation is insufficient, the controller 410 determines to produce hydrogen with the highest priority and further determines priority in order of power purchase (S44), discharging of the storage battery (S46), FC power generation (S48) and power purchase (S49). The controller 410 determines the process to be executed among these in accordance with the determined priority on the basis of the determination in step S43, S45 and S47 and transmits control information which gives an instruction to execute the determined process.
Meanwhile, in step S51, the controller 410 determines to cause the hydrogen production apparatus 102 to operate to produce hydrogen to be supplied to a fuel cell vehicle (hydrogen to be accumulated in the hydrogen tank 106). The controller 410 transmits control information which gives an instruction to perform the determined operation to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information. In other words, the hydrogen production apparatus 102 produces hydrogen and accumulates the produced hydrogen in the hydrogen tank 106.
After the control information is transmitted in step S51, the controller 410 determines whether the remaining amount of power of the storage battery 101 is less than an upper limit threshold in step S52 (S52). In a case where the remaining amount of power of the storage battery 101 is less than the upper limit threshold, the controller 410 determines to charge the storage battery 101 with surplus power (surplus power exceeding power to be used at the hydrogen production apparatus 102) of power generated through PV power generation (S53). In a case where the remaining amount of power of the storage battery 101 is equal to or greater than the upper limit threshold, the controller 410 determines to sell power (transmit surplus power to the distribution system 8) (S54).
The controller 410 generates control information which gives an instruction to execute the process determined in step S53 or S43 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information.
In this manner, in a case where there is surplus power, the controller 410 determines to produce hydrogen to be supplied to an FCV with the highest priority and determines priority in order of charging of the storage battery (S53) and power selling (S54). The controller 410 determines the process to be executed among these in accordance with the determined priority on the basis of the determination in step S52 and transmits control information which gives an instruction to execute the determined process.
[Case where Neither Hydrogen Storage Plan 5 Nor Power Supply and Demand Plan 6 is Fulfilled]
The supply and demand balance determiner 403 determines whether or not the amount of power generated through PV power generation is equal to or greater than the amount of power consumption of the load such as the power consumer 3 and the load apparatus 9 as determination of balance of supply and demand (S61). In other words, the supply and demand balance determiner 403 determines whether the amount of power generated through PV power generation is insufficient or there is a surplus amount of power generated through PV power generation. In a case where a difference obtained by subtracting the amount of power consumption from the amount of power generated through PV power generation is less than 0 (in a case where the amount of power generated through PV power generation is insufficient), the processing proceeds to step S62, and in a case where the difference is equal to or greater than 0 (in a case where there is a surplus amount of power generated through PV power generation), the processing proceeds to step S101.
In step S62, the controller 410 determines whether the amount of hydrogen in the hydrogen tank 106 is less than a threshold (for example, a guaranteed amount of supply of hydrogen of one day). In a case where the amount of hydrogen in the hydrogen tank 106 is less than the threshold, the processing proceeds to step S63, and in a case where the amount of hydrogen in the hydrogen tank 106 is equal to or greater than the threshold, the processing proceeds to step S81.
Processing from step S63 to S71 is similar to the processing from step S42 to S49 in
The controller 410 generates control information which gives an instruction to execute the process determined in step S65, S68, S70 or S71 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information.
In this manner, in a case where the amount of hydrogen in the hydrogen tank 106 is less than a threshold (a guaranteed amount of supply of hydrogen), the controller 410 determines to produce hydrogen with the highest priority and further determines priority in order of power purchase (S65), discharging of the storage battery (S68), FC power generation (S70) and power purchase (S71). The controller 410 determines the process to be executed among these in accordance with the determined priority on the basis of the determination in step S64, S67 and S69 and transmits control information which gives an instruction to execute the determined process.
Processing from step S81 to step S89 is similar to the processing from step S31 to S39 in
The controller 410 generates control information which gives an instruction to execute the process determined in step S83, S85, S87 or S88 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information.
In this manner, the controller 410 performs control to purchase power in a case where power required to be secured (the difference described above) is equal to or less than the threshold and perform discharging of the storage battery (S35), FC power generation (S37) and power purchase (S38) in this order of priority in a case where it is necessary to secure power greater than the difference. Peak cut is performed through this processing.
Meanwhile, in a case where the difference obtained by subtracting the amount of power consumption from the amount of power generated through PV power generation is equal to or greater than 0 in step S81 (in a case where there is a surplus amount of power generated through PV power generation), the controller 410 determines to sell power (transmit surplus power to the distribution system 8) (S89). The controller 410 generates control information which gives an instruction to execute the process determined in step S89 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. In this manner, in a case where there is surplus power, the controller 410 sells power with the highest priority.
In step S101, the controller 410 determines to cause the hydrogen production apparatus 102 to operate to produce hydrogen to be supplied to a fuel cell vehicle (hydrogen to be accumulated in the hydrogen tank 106). The controller 410 transmits control information which gives an instruction to perform the determined operation to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information. In other words, the hydrogen production apparatus 102 produces hydrogen and accumulates the produced hydrogen in the hydrogen tank 106. After the control information is transmitted in step S101, the controller 410 determines to sell surplus power generated through the PV power generation (surplus power exceeding power to be used at the hydrogen production apparatus 102) in step S102 (S102).
The controller 410 generates control information which gives an instruction to execute the process determined in step S102 and transmits the control information to the renewable energy hydrogen system 1 or the energy system 10 via the transmitter 411. The renewable energy hydrogen system 1 or the energy system 10 executes the process indicated in the control information.
In this manner, in a case where there is surplus power, the controller 410 determines to produce hydrogen to be supplied to an FCV with the highest priority and further determines to sell surplus power (surplus power exceeding power to be used at the hydrogen production apparatus 102).
As described above, according to the present embodiment, long-term plans such as the power supply and demand plan which is a plan of a cumulative amount of power to be transmitted and received to and from the distribution system 8 and the hydrogen storage plan which is a plan of an integrated amount of supply and demand of hydrogen (a storage amount of the hydrogen tank) are input. Priority of operation of respective components (system components) in the energy system 10 or the renewable energy hydrogen system 1 is changed in accordance with fulfillment states of the power supply and demand plan and the hydrogen storage plan. This enables the energy system to efficiently operate with a long-term perspective.
Components 404 to 409 are removed from the control apparatus 4 in the information processing system 100 in the first embodiment in
Components 404 to 406 are removed from the control apparatus 4 in the information processing system 100 in the first embodiment in
Components 407 to 409 are removed from the control apparatus 4 in the information processing system 100 in the first embodiment in
A hydrogen supply plan 421 is added the control apparatus 4 in the information processing system 100 in the first embodiment in
The controller 410 controls the renewable energy hydrogen system or the energy system 10 while setting the hydrogen supply plan 421 as a constraint condition. The controller 410 generates control information for executing the hydrogen supply plan 421 and transmits the generated control information to the renewable energy hydrogen system 1 via the transmitter 411. In the renewable energy hydrogen system 1, the hydrogen supply apparatus 105 receives hydrogen from the hydrogen tank 106 in accordance with the control information and supplies the received hydrogen to an external apparatus.
The controller 410 performs operation similar to the operation in the first embodiment while executing the hydrogen supply plan 421 in this manner. This implements operation similar to the operation in the first embodiment while fulfilling the hydrogen supply plan 421. The hydrogen supply apparatus 105 uses hydrogen in the hydrogen tank 106, and thus, priority of production of hydrogen to be accumulated in the hydrogen tank 106 may be made higher than the priority in the first embodiment.
While an example has been described in the present embodiment where a configuration which performs the processing based on the hydrogen supply plan 421 is added to the first embodiment, the configuration may be added to the second to the fourth embodiments.
A hot water supply plan 422 is added to the control apparatus 4 in the information processing system 100 in the first embodiment in
The fuel cell apparatus 104A heats water in the water tank 107 by utilizing heat of power generation when power is generated using hydrogen in the hydrogen tank 103 and provides the heated water to the load apparatus 9 (which may be a facility, for example, a factory and a pool) via a pipe 109. The load apparatus 9 is external equipment which is connected to a power line 7 and which consumes power supplied from the power line 7 as a load.
The hot water supply plan 422 is a plan including time and a hot water supply amount. A plan period of the hot water supply plan 422 is input to the control apparatus 4 from, for example, an external input apparatus (not illustrated). The plan period of the hot water supply plan 422 is shorter than periods of the hydrogen storage plan 5 and the power supply and demand plan 6 as an example. For example, in a case where it becomes necessary to supply hot water to the load apparatus 9 at a certain time period, a supply plan of hot water at the time period is provided as the hot water supply plan 422.
The controller 410 controls the renewable energy hydrogen system or the energy system 10 while setting the hot water supply plan 422 as a constraint condition. The controller 410 generates control information for executing the hot water supply plan 422 and transmits the generated control information to the renewable energy hydrogen system 1 via the transmitter 411. At the renewable energy hydrogen system 1, the fuel cell apparatus 104A receives hydrogen from the hydrogen tank 103 in accordance with the control information and generates power and heats water using the received hydrogen. The fuel cell apparatus 104A supplies the heated water to the load apparatus 9.
The controller 410 performs operation similar to the operation in the first embodiment while executing the hot water supply plan 422 in this manner. This implements operation similar to the operation in the first embodiment while fulfilling the hot water supply plan 422. The fuel cell apparatus 104A uses the hydrogen in the hydrogen tank 103, and thus, priority of production of hydrogen to be accumulated in the hydrogen tank 103 may be made higher than the priority in the first embodiment.
While an example has been described in the present embodiment where a configuration which performs the processing based on the hot water supply plan 422 is added to the first embodiment, the configuration may be added to the second to the fifth embodiments.
(Hardware Configuration)
The CPU (central processing unit) 601 executes a computer program for implementing the above-mentioned respective functional components of the information processing apparatus in the main storage 605. The CPU 601 executes the computer program and thereby implements the respective functional components.
The input interface 602 is a circuit for inputting operation signals from the input device such as a keyboard, mouse, and touch panel or the like into the apparatus. The input device 120 that carries out the input function can be constructed on the input interface 602.
The display device 603 displays data or information outputted from the information processing apparatus. The display device 603 is, for example, an LCD (Liquid Crystal Display), a CRT (Cathode Ray Tube), and a PDP (plasma display), but the display device 603 is not limited thereto. The data or information outputted from computer apparatus 600 can be displayed by this display device 603. The output device 130 can be constructed on the display device 603.
The communication device 604 is a circuit for the information processing apparatus 101 to communicate with the external device by wireless or wired means. Information can be inputted from the external device via the communication device 604. The information inputted from the external device can be stored in the DB, the main storage 605, or the external storage device 606.
The main storage 605 stores a program that implements processing of the information processing apparatus, data necessary to execute the program and data generated by executing the program. The program is developed and executed on the main storage 605. The main storage 605 may be, for example, RAM, DRAM or SRAM, but it is not limited to this. The various DBs and the storage in each embodiment may be constructed on the main storage 605.
The external storage device 606 stores the above-described program and data necessary to execute the program, data generated by executing the program or the like. The program and data are read into the main storage 605 during processing of the present embodiment. The external storage device 606 is, for example, a hard disk, an optical disk, a flash memory, or a magnetic tape, but it is not limited to this. The various DBs and the storage in each embodiment may be constructed on the external storage device 606.
Note that the above-described program may be pre-installed in the computer apparatus 600 or may be stored in a storage medium such as a CD-ROM. The program may be uploaded on the Internet.
Note that the computer apparatus 600 may be provided with one or a plurality of processors 601, input interfaces 602, display devices 603, communication devices 604 and main storages 605, and peripheral devices such as a printer and a scanner may be connected thereto.
In addition, the information processing apparatus 101 may be constructed of the single computer apparatus 600 or may be configured as a system composed of a plurality of mutually connected computer apparatuses 600.
While certain embodiments have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the inventions. Indeed, the novel embodiments described herein may be embodied in a variety of other forms; furthermore, various omissions, substitutions, and changes in the form of the embodiments described herein may be made without departing from the spirit of the inventions. The accompanying claims and their equivalents are intended to cover such forms or modifications as would fall within the scope and spirit of the inventions.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2021-044050 | Mar 2021 | JP | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 9793723 | Tomita | Oct 2017 | B2 |
| 20040126641 | Pearson et al. | Jul 2004 | A1 |
| 20060260672 | Niederer | Nov 2006 | A1 |
| 20090048716 | Marhoefer | Feb 2009 | A1 |
| 20090076661 | Pearson | Mar 2009 | A1 |
| 20150229138 | Nakamura | Aug 2015 | A1 |
| 20190386491 | Ito et al. | Dec 2019 | A1 |
| Number | Date | Country |
|---|---|---|
| 2003-134665 | May 2003 | JP |
| 2004-120903 | Apr 2004 | JP |
| 2005033961 | Feb 2005 | JP |
| 2006-340539 | Dec 2006 | JP |
| 2007-68337 | Mar 2007 | JP |
| 2009-71889 | Apr 2009 | JP |
| 2014033592 | Feb 2014 | JP |
| 2016-208694 | Dec 2016 | JP |
| 6114777 | Apr 2017 | JP |
| 2019221126 | Dec 2019 | JP |
| WO 03032429 | Apr 2003 | WO |
| WO 2017017734 | Feb 2017 | WO |
| WO-2019182038 | Sep 2019 | WO |
| WO 2020166571 | Aug 2020 | WO |
| WO 2020188266 | Sep 2020 | WO |
| Entry |
|---|
| Becherifa et al., “Hydrogen Energy Storage: New Techno-Economic Emergence Solution Analysis”, 2015, Energy Procedia 74 ( 2015 ) 371-380. (Year: 2015). |
| Carapellucci et al., “Modeling and optimization of an energy generation island based on renewable technologies and hydrogen storage systems”, Jul. 2011, international journal of hydrogen energy 37 (2012)2081e2093. (Year: 2011). |
| Kelouwani et al., “Model for energy conversion in renewable energy system with hydrogen storage”, Jul. 2004, Journal of Power Sources 140 (2005) 392-399. (Year: 2004). |
| Number | Date | Country | |
|---|---|---|---|
| 20220302708 A1 | Sep 2022 | US |
