JP2017103186A - Hydrogen supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hydrogen supply system capable of stably supplying electric power to a hydrogen production device by a power generation device and stably supplying hydrogen to the power generation device by the hydrogen production device even when supply of power from a power system is stopped.SOLUTION: A hydrogen supply system 1 includes a hydrogen production device 10, a storage tank 20, a first power generation device 30, a battery 80, and a control device 50. When the first power generation device 30 is in a stopped state and power is not supplied from the power system 100, the control device 50 activates at least the first power generation device 30 with starting power generated by the battery 80, supplies electric power generated by the first power generation device 30 to the hydrogen production device 10, and controls the hydrogen production device 10 to supply hydrogen so that the power generated by the first power generation device 30 is supplied to the hydrogen production device 10 until the amount of hydrogen in the storage tank 20 becomes equal to or larger than a predetermined storage amount.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hydrogen supply system for supplying hydrogen to a power generation device such as a fuel cell (FC) that generates power using hydrogen.

  Conventionally, it has been studied that fuel cell equipment installed in a facility such as a house or a store / factory supplies power to the electrical equipment in these external facilities.

  There is also known a hydrogen supply system that supplies hydrogen to a mobile body such as a fuel cell vehicle (FCV) on which a fuel cell is mounted (see, for example, Patent Document 1).

  Patent Document 1 discloses a hydrogen supply system including a hydrogen production device, a power generation device that is a fuel cell facility, and a control device. The hydrogen production apparatus produces hydrogen from a raw material containing hydrocarbons and supplies hydrogen to the power generation apparatus and the outside. When the power supply from the outside is lost due to a power failure, the power generation device generates power using hydrogen produced by the hydrogen production device and supplies operating power to the hydrogen production device and the hydrogen supply facility. The control device controls the amount of hydrogen supplied to the power generation device according to fluctuations in demand for operating power to the hydrogen production device and the hydrogen supply facility.

  According to this hydrogen supply system, even if power is not supplied from the power system, for example, hydrogen production and supply can be continued.

JP 2003-95612 A

  However, in the hydrogen supply system described in Patent Literature 1, when power is not supplied from the power system, the demand for supplying power from the power generator to the electrical equipment in the external facility where power is insufficient increases. Is not considered. And when electric power is no longer supplied from an electric power grid, for example, the demand for hydrogen from the outside may overlap with the demand for hydrogen from a power generation device that supplies electric power to an electrical facility in an external facility. Conceivable. In this case, a situation in which the demand for hydrogen greatly exceeds the production capacity of the hydrogen production apparatus is likely to occur. For this reason, in this hydrogen supply system, if hydrogen supply to the outside frequently occurs, the production capacity of the hydrogen production apparatus may be exceeded, and hydrogen may not be sufficiently supplied to the power generation apparatus. In this case, in this hydrogen supply system, the cycle in which the hydrogen production apparatus produces hydrogen by supplying power from the power generation apparatus and the power generation apparatus generates electric power using the hydrogen is likely to break down. That is, there is a risk that the power generation apparatus will not have enough power to supply the hydrogen production apparatus, and the hydrogen production apparatus will not be able to produce hydrogen sufficiently.

  The present invention has been made in view of such problems, and even when power is no longer supplied from the power system, the hydrogen production apparatus generates power while the power generation apparatus stably supplies power to the hydrogen production apparatus. It is an object of the present invention to provide a hydrogen supply system capable of stably supplying hydrogen to an apparatus.

  In order to solve the above problems, a hydrogen supply system according to an aspect of the present invention includes a hydrogen production apparatus that produces hydrogen from a raw material containing a hydrogen element, and a storage tank that stores hydrogen supplied from the hydrogen production apparatus. A power generation device that generates power in a regular operation using hydrogen stored in the storage tank, a battery that supplies at least power for starting required to start the power generation device, the power generation device, and the hydrogen production device And when the power generation device is in a stopped state and no power is supplied from the power system, the control device at least starts the power generation by the battery. The power generation device is activated by power, the power generated by the power generation device is supplied to the hydrogen production device, and the hydrogen production device is controlled to supply hydrogen. Supplies power the power generator is generating power in the hydrogen production system to the hydrogen amount in serial storage tank reaches a predetermined storage amount or more.

  The hydrogen supply system according to one embodiment of the present invention includes a hydrogen production apparatus that produces hydrogen from a raw material containing hydrogen element, a storage tank that stores hydrogen supplied from the hydrogen production apparatus, and a storage tank that stores the hydrogen. A power generation device that generates power in a regular operation using the generated hydrogen, and a control device that controls the power generation device and the hydrogen production device, wherein the power generation device is in a state of generating power, and from a power system When electric power is not supplied, the control device supplies the electric power generated by the power generation device to the hydrogen production device, and controls the hydrogen production device to supply hydrogen, so that the hydrogen in the storage tank Electric power generated by the power generation device is supplied to the hydrogen production device until the amount reaches a predetermined storage amount or more.

  According to the present invention, even when power is not supplied from the power system, the power generation device can stably supply power to the hydrogen production device, and the hydrogen production device can stably supply hydrogen to the power generation device. it can.

FIG. 1 is a block diagram showing the configuration of the hydrogen supply system in the first embodiment. FIG. 2 is a flowchart showing the operation of the hydrogen supply system in the first embodiment. FIG. 3 is a block diagram illustrating an example of power supply in the hydrogen supply system according to the first embodiment. FIG. 4 is a block diagram illustrating an example of power supply in the hydrogen supply system according to the first embodiment. FIG. 5 is a block diagram illustrating an example of power supply and hydrogen supply in the hydrogen supply system according to the first embodiment. FIG. 6 is a flowchart showing the operation of the hydrogen supply system according to the second embodiment. FIG. 7 is a block diagram illustrating an example of power supply and hydrogen supply in the hydrogen supply system according to the second embodiment.

  Embodiments of the present invention will be described below. Note that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, numerical values, shapes, materials, components, arrangement positions and connection forms of components, and steps and order of steps shown in the following embodiments are merely examples, and are not intended to limit the present invention. Absent. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  In addition, the size or ratio of components shown in the drawings is not necessarily strict. In each figure, substantially the same configuration is denoted by the same reference numeral, and redundant description is omitted or simplified.

(Embodiment 1)
The overall configuration of the hydrogen supply system 1 according to Embodiment 1 will be described with reference to FIG. FIG. 1 is a block diagram showing the configuration of the hydrogen supply system in the first embodiment.

  In FIG. 1, the arrow shown by a thick continuous line has shown the flow of hydrogen. For example, each apparatus is connected by piping, and hydrogen is supplied by piping. Further, in FIG. 1, an arrow indicated by a thin solid line indicates a control signal line, which may be either wired or wireless. Moreover, in FIG. 1, the dashed-dotted line has shown the state which is supplying electric power with an electric wire. 3 to 5 are also displayed in correspondence with FIG.

  As shown in FIG. 1, the hydrogen supply system 1 is a system that supplies hydrogen to a power generation device such as a fuel cell that generates power using hydrogen. The hydrogen supply system 1 includes a hydrogen production device 10, a storage tank 20, a first power generation device (an example of a power generation device) 30, a hydrogen supply device 40, a control device 50, a pump 70, and a battery 80. ing.

  The hydrogen production device 10, the storage tank 20, the first power generation device 30, the hydrogen supply device 40, the control device 50, the pump 70, and the battery 80 are installed as equipment for supplying power to the external facility 200. The facility 200 is, for example, a house such as a general household or a facility such as a store / factory.

The hydrogen production apparatus 10 is an apparatus that produces hydrogen (H ₂ ) from a raw material containing a hydrogen element (H). For example, the hydrogen production apparatus 10 can generate hydrogen by performing reforming such as steam reforming using a hydrocarbon gas such as city gas (methane gas) as a raw material (fuel). In the present embodiment, the hydrogen produced by the hydrogen production apparatus 10 is a hydrogen gas, and may be either a hydrogen rich gas or a pure hydrogen gas.

The method for producing hydrogen is not limited to the reforming method. For example, a method of generating hydrogen gas by decomposing ammonia, a method of generating hydrogen gas by dehydrogenating from organic hydride, or a method of generating hydrogen by electrolyzing water (H ₂ O) may be used. The method may be used, or a method of decomposing water by applying sunlight to the catalyst to generate hydrogen.

  The storage tank 20 stores the hydrogen supplied from the hydrogen production apparatus 10. The storage tank 20 is connected to the hydrogen production apparatus 10 by a pipe 91. Hydrogen can be supplied from the hydrogen production apparatus 10 to the storage tank 20 using a pump (not shown). This pump may be provided in the hydrogen production apparatus 10, may be provided in the storage tank 20, or may be provided on the pipe 91.

  A compressor (not shown) may be provided between the storage tank 20 and the hydrogen production apparatus 10. In this case, the compressor compresses the hydrogen gas supplied from the hydrogen production apparatus 10 into liquid hydrogen. For example, a compressor such as a piston compressor or a vane compressor is employed as the compressor. The compressor may be built in the hydrogen production apparatus 10, may be provided on the pipe 91, or may be built in the storage tank 20. In this case, since the compressor compresses the hydrogen gas and stores it as liquid hydrogen, the storage tank 20 can be reduced in size as compared with the case where the hydrogen gas supplied from the hydrogen production apparatus 10 is stored as a gas as it is. In addition, you may store the hydrogen gas supplied from the hydrogen production apparatus 10 as a gas as it is.

  The storage tank 20 and the pump 70 are connected via a pipe 92. The pump 70 and the first power generation device 30 are connected via a pipe 93. Further, the pump 70 and the hydrogen supply device 40 are connected via a pipe 94 for supplying hydrogen from the pump 70 to the hydrogen supply device 40. The pipe 93 and the pipe 94 may be one pipe having a branch portion in the middle or two separate pipes.

  The pump 70 can supply the hydrogen in the storage tank 20 to the first power generator 30 via the pipe 92 and the pipe 93. The pump 70 can supply the hydrogen in the storage tank 20 to the hydrogen supply device 40 via the pipe 92 and the pipe 94. The pump 70 may be provided in the storage tank 20. The piping 93 and the piping 94 may be provided with solenoid valves (not shown).

  The first power generation device 30 generates power by regular operation using hydrogen stored in the storage tank 20. That is, the first power generation device 30 is frequently used and periodically generates power. The first power generation device 30 is, for example, a fuel cell (FC) that generates power using hydrogen as a fuel, a hydrogen engine, or the like. The electrical energy generated by the first power generation device 30 and the thermal energy obtained during power generation are used in the facility 200. For example, the electrical energy generated by the first power generation device 30 is used for electrical equipment (electric power load) in the facility 200.

  The first power generation device 30 also supplies power for operation to the first power generation device 30, the hydrogen production device 10, the hydrogen supply device 40, the control device 50, and the pump 70. In addition to the pump 70, the first power generator 30 supplies power to auxiliary devices for operating the hydrogen supply system (for example, a solenoid valve disposed in the piping and a fan for ventilating the housing). Can do.

  The hydrogen supply device 40 supplies the hydrogen stored in the storage tank 20 to the outside in an irregular operation. That is, the hydrogen supply device 40 supplies the hydrogen in the storage tank 20 to the mobile body 300 that visits irregularly.

  Further, the hydrogen supply device 40 includes a tank (not shown) and a dispenser (not shown). Hydrogen from the storage tank 20 is temporarily stored in the tank via the pipe 92, the pump 70, and the pipe 94. The dispenser supplies the hydrogen in the tank to the moving body 300 by connecting to the moving body 300. The hydrogen supply device 40 does not have a tank for temporarily storing the hydrogen supplied from the storage tank 20, and the hydrogen is supplied from the storage tank 20 to the moving body 300 using the pump 70 or the pump in the hydrogen supply device 40. The structure which supplies may be sufficient.

  The moving body 300 includes a second power generation device 60 that generates power using hydrogen supplied from the hydrogen supply device 40. The moving body 300 is, for example, a fuel cell vehicle (FVC), a fuel cell motorcycle, or a bicycle with fuel cell electric assist. In this case, the second power generation device 60 is a fuel cell that generates power using hydrogen as a fuel. The electric energy generated by the second power generation device 60 is used by the moving body 300 such as a fuel cell vehicle. The moving body 300 may be a hydrogen engine vehicle having a hydrogen engine that returns the thermal energy of hydrogen supplied from the hydrogen supply device 40 to power.

  Note that the hydrogen supply device 40 is not limited to supplying hydrogen to the moving body 300, and if hydrogen is supplied irregularly, for example, hydrogen is supplied to a tank carried by a person who purchases hydrogen. May be. That is, the moving body 300 is not limited to a fuel cell vehicle or the like, and may be a person or the like.

  The control device 50 controls the hydrogen production device 10, the first power generation device 30, and the hydrogen supply device 40. The control device 50 includes a memory that stores programs such as applications and software, a processor that executes the programs, and the like. In the control device 50, a processor included in each device executes processing by executing a program stored in a memory.

  The control device 50 controls the amount of hydrogen produced by the hydrogen production device 10 according to the amount of power generated by the first power generation device 30 and the amount of hydrogen supplied to the moving body 300. That is, the control device 50 causes the hydrogen production device 10 to produce power depending on whether or not the power generated by the first power generation device 30 is supplied to the facility 200 and whether or not the hydrogen supply device 40 supplies hydrogen to the outside. Control the amount of hydrogen.

  Specifically, the control device 50 can change the amount of hydrogen supplied from the storage tank 20 to the first power generation device 30 in accordance with the amount of power generated by the first power generation device 30. For example, the control device 50 can increase the operating amount of the pump 70, increase the amount of hydrogen supplied from the storage tank 20, and increase the amount of power generated by the first power generation device 30. Further, for example, the control device 50 can reduce the amount of operation of the pump 70, reduce the amount of hydrogen supplied from the storage tank 20, and reduce the amount of power generated by the first power generation device 30.

  Note that if the amount of hydrogen supplied relative to the power generation amount of the first power generation device 30 is insufficient, the fuel cell may be deteriorated or cannot generate power. It is necessary to control the amount to exceed. In addition, when the amount of hydrogen supplied is significantly greater than the amount of power generated by the first power generation device 30, the power generation efficiency of the fuel cell decreases. Therefore, the control device 50 optimally controls the amount of hydrogen supplied in accordance with the power generation amount of the first power generation device 30.

  Further, the amount of hydrogen produced by the hydrogen production apparatus 10 can be adjusted by changing the amount of raw material to be input or changing the amount of electric power to be supplied. For example, the amount of hydrogen supplied from the hydrogen production apparatus 10 to the storage tank 20 can be increased by increasing the amount of raw material to be input or increasing the amount of power to be supplied. On the other hand, the amount of hydrogen supplied from the hydrogen production apparatus 10 to the storage tank 20 can be reduced by reducing the amount of raw material to be input or reducing the amount of power to be supplied.

  Further, the control device 50 is connected to a stop detection unit (not shown) that detects a state in which power is not supplied from the power system 100 (power failure). Specifically, the stop detection unit is a detection circuit that detects that power is not supplied from the power system 100, and detects that the supply of AC power from the power system 100 is cut off. The power failure detection method by the stop detection unit may be any method, for example, when it is determined that there is a power failure when AC power periodically transmitted from the power system 100 is not periodically supplied. Power outages are power outages due to disasters, planned power outages, and the like.

  The battery 80 is electrically connected to the control device 50 via a converter (not shown). Specifically, when power is not supplied from power system 100, control device 50 supplies power for starting battery 80 necessary to start auxiliary devices such as first power generation device 30 and pump 70. . The battery 80 may be a secondary battery such as a nickel metal hydride battery or a lithium ion battery, or may be a secondary battery in which a plurality of these battery cells are incorporated. Note that the battery 80 may be electrically connected to the hydrogen production apparatus 10 and supply start power necessary for starting the hydrogen production apparatus 10.

  In addition, the control device 50 supplies the starting power of the battery 80 to the first power generation device 30 and auxiliary devices such as the pump 70 to start it, and the first power generation device 30 uses the hydrogen stored in the storage tank 20. Electric power is generated, and the hydrogen production apparatus 10 is started using the generated electric power. After these are started, the control device 50 may charge the battery 80 with the electric power of the first power generation device 30. Specifically, in the first power generation device 30, when the power generated by the first power generation device 30 is larger than the power used in the hydrogen production device 10, surplus power is generated. In this case, the battery 80 is charged with surplus power from the first power generation device 30. Thereby, even if the battery 80 is used once, if the battery 80 is charged, the battery 80 can supply the starting power again to the first power generator 30, the pump 70, and the like.

  The operation of the hydrogen supply system 1 configured as described above will be described.

  FIG. 2 is a flowchart showing the operation of the hydrogen supply system 1 in the first embodiment. FIG. 2 shows a state in which the hydrogen supply system 1 is started from a stopped state. FIG. 3 is a block diagram illustrating an example of power supply in the hydrogen supply system according to the first embodiment. FIG. 3 shows a state where the hydrogen supply system 1 is started.

  As shown in FIGS. 2 and 3, when power is no longer supplied from the power system 100, the stop detection unit connected to the control device 50 detects that power supply has been cut off. The stop detection unit inputs a stop signal indicating that power is not supplied from the power system 100 to the control device 50. The control apparatus 50 starts the pump 70 and the 1st electric power generating apparatus 30 with the stop signal from a stop detection part (S1).

  Specifically, the control device 50 supplies the starting power from the battery 80 to the pump 70 and the first power generation device 30 and activates the pump 70 and the first power generation device 30. The pump 70 supplies the hydrogen stored in the storage tank 20 to the first power generator 30. After starting, the first power generation apparatus 30 generates power using hydrogen supplied from the storage tank 20 and oxygen in the air supplied from an air supply device (not shown). Then, when the first power generation device 30 generates power, the control device 50 switches the switching circuit incorporated in the control device 50 from the power of the battery 80 to the power of the first power generation device 30. Note that the control device 50 may start the hydrogen production device 10 by supplying power for starting necessary for starting the hydrogen production device 10 from the battery 80.

  The control device 50 preferentially supplies the power generated by the first power generation device 30 to the hydrogen production device 10. Specifically, the control device 50 activates the first power generation device 30, activates the hydrogen production device 10 with the electric power generated by the first power generation device 30, and causes the hydrogen production device 10 to produce hydrogen (S2). That is, when the hydrogen supply system 1 is started in a state where power is not supplied from the power system 100, the power generated by the first power generation device 30 is preferentially supplied to the hydrogen production device 10. At this time, the electric power generated by the first power generation device 30 is also supplied to the pump 70 and the first power generation device 30. Then, the hydrogen production apparatus 10 supplies the produced hydrogen to the storage tank 20 via the pipe 91. Thus, in this hydrogen supply system 1, even when the hydrogen supply system 1 is in a stopped state, the control device 50 detects that the power supply has been stopped from the power system 100 and is activated to perform power generation and hydrogen production. .

  The control device 50 activates the hydrogen production device 10 so as to supply hydrogen, and uses the hydrogen production device to generate the electric power generated by the first power generation device 30 until the amount of hydrogen in the storage tank 20 exceeds a predetermined storage amount. Supply with priority over 10. And the control apparatus 50 judges whether the hydrogen amount in the storage tank 20 became more than predetermined storage amount (S3). The determination as to whether or not the predetermined storage amount has been reached may be made based on the storage amount calculated from the difference between the amount of hydrogen supplied to the storage tank 20 and the amount of hydrogen discharged, for example. It may be a thing. In addition, the predetermined storage amount of the hydrogen amount in the storage tank 20 can be set as appropriate, for example, 1/4, 1/3, 2/3, 3/4 of the full filling of the storage tank 20 or the like.

  FIG. 4 is a block diagram illustrating an example of power supply in the hydrogen supply system according to the first embodiment. FIG. 4 shows a state where power is supplied to the facility 200.

  As shown in FIGS. 2 and 4, when the amount of hydrogen in the storage tank 20 is equal to or greater than the predetermined storage amount (YES in S3), the control device 50 produces hydrogen generated by the first power generation device 30. While supplying the apparatus 10 and the pump 70, the power is also supplied to the facility 200 (S4). Specifically, the control device 50 supplies the facility 200 with surplus power obtained by subtracting the power used by the hydrogen production device 10 from the power supplied with priority to the hydrogen production device 10. In other words, hydrogen is supplied from the storage tank 20 in accordance with the demand for power in the first power generator 30. That is, the electric power generated by the first power generation device 30 is supplied to the facility 200 with priority over the hydrogen production device 10.

  On the other hand, when the control device 50 determines that the hydrogen amount in the storage tank 20 is not equal to or greater than the predetermined storage amount (NO in S3), the control device 50 preferentially supplies the power generated by the first power generation device 30 to the hydrogen production device 10. . For example, specifically, when there is no surplus power and the amount of hydrogen in the storage tank 20 is nearly empty, the supply of power to the facility 200 may be stopped. Then, the process returns to step S3.

  The control device 50 determines whether or not power is supplied from the power system 100 (S5). If the stop signal is input from the stop detection unit, the control device 50 determines that the power is not yet supplied from the power system 100 (NO in S5).

  FIG. 5 is a block diagram illustrating an example of power supply and hydrogen supply in the hydrogen supply system according to the first embodiment. FIG. 5 shows a state where power is supplied to the facility 200 and hydrogen is supplied to the moving body 300.

  Next, as shown in FIGS. 2 and 5, when there is a demand for hydrogen from the mobile body 300 that visits irregularly, the control device 50 changes the hydrogen produced by the hydrogen production device 10 to the first power generation device 30. It is determined whether there is surplus hydrogen obtained by subtracting the supplied hydrogen (S6). When there is surplus hydrogen (YES in S6), control device 50 determines that hydrogen can be supplied to moving body 300. And the hydrogen supply apparatus 40 supplies hydrogen to the moving body 300 from the storage tank 20 via the hydrogen supply apparatus 40 (S7). That is, the hydrogen produced by the hydrogen production apparatus 10 is supplied to the hydrogen supply apparatus 40 in preference to the hydrogen necessary for the first power generation apparatus 30 to generate the electric power used in the hydrogen production apparatus 10 and the facility 200. Is done. Then, the process returns to step S3. Note that even in a case where hydrogen can be supplied to the moving body 300, if the amount of surplus hydrogen produced is small, a small amount of hydrogen may be supplied to the moving body 300 over a long period of time. Hydrogen may be supplied to the moving body 300 after hydrogen has sufficiently accumulated in the storage tank or the hydrogen supply device 40.

  The reason why the priority of the mobile unit 300 is considered to be lower than that of the facility 200 is that there is a high necessity for electric power in the facility 200 when a power failure occurs due to a disaster or the like. A fuel cell vehicle, which is an example of the moving body 300, generally has a built-in hydrogen tank and can be started by the battery itself, so that it can move using hydrogen stored in the hydrogen tank. Therefore, when a power failure occurs, the priority of supplying hydrogen to the moving body 300 can be considered to be relatively low.

  In addition, since it is assumed that the timing which supplies hydrogen to the mobile body 300 is not regular, it is thought that the hydrogen supply apparatus 40 operates irregularly. For example, when the hydrogen supply device 40 supplies hydrogen to the fuel cell vehicle, it is conceivable that the fuel cell vehicle is connected to the hydrogen supply device 40 irregularly. This is because the timing at which the fuel cell vehicle arrives at the hydrogen supply device 40 is difficult to control with the hydrogen supply device 40, for example. This is because the arrival timing is random. For this reason, in the storage tank 20 which stores hydrogen in preparation for the fuel cell vehicle which arrives irregularly, it stores until the hydrogen amount becomes a predetermined storage amount.

  On the other hand, when there is no surplus hydrogen (NO in S6), the controller 50 may return the hydrogen amount in the storage tank 20 to a predetermined amount because the hydrogen amount in the storage tank 20 may be small. More than the storage amount.

  When the hydrogen supply device 40 is connected to the moving body 300, the control device 50 controls the hydrogen supply device 40 so as to supply hydrogen. Specifically, the determination as to whether or not the moving body 300 is connected to the hydrogen supply device 40 is based on how the hydrogen stored in the storage tank 20 or the tank in the hydrogen supply device 40 is reduced or the flow rate of flowing hydrogen. It can be grasped by seeing or detecting the presence or absence of the moving body 300 with a sensor or the like.

  In step S5, when no stop signal is input from the stop detection unit, control device 50 determines that power is supplied from power system 100 (YES in S5). When the control device 50 determines that power is supplied from the power system 100, the flow of the hydrogen supply system 1 is terminated.

  By installing the hydrogen supply system 1 through the above steps S <b> 1 to S <b> 7, power can be supplied to the facility 200 or hydrogen can be supplied to the moving body 300.

  Next, the effect of the hydrogen supply system 1 in the present embodiment will be described.

  As described above, the hydrogen supply system 1 according to Embodiment 1 includes a hydrogen production device 10 that produces hydrogen from a raw material containing hydrogen element, a storage tank 20 that stores hydrogen supplied from the hydrogen production device 10, and A first power generation device 30 that generates power in a regular operation using hydrogen stored in the storage tank 20; a battery that supplies at least power for starting to start the first power generation device 30; and the first power generation device 30. And a control device 50 for controlling the hydrogen production apparatus 10. When the first power generation device 30 is in a stopped state and no power is supplied from the power system 100, the control device 50 activates at least the first power generation device 30 with the starting power generated by the battery 80. In addition, the power generated by the first power generation device 30 is supplied to the hydrogen production device 10, and the hydrogen production device 10 is controlled to supply hydrogen so that the amount of hydrogen in the storage tank 20 is equal to or greater than a predetermined storage amount. The electric power generated by the first power generation device 30 is supplied to the hydrogen production device 10 until

  According to this configuration, even when the hydrogen supply system 1 is stopped, the stop detection unit connected to the control device 50 detects that power is not supplied from the power system 100. The control device 50 starts auxiliary equipment such as the first power generation device 30 and the pump 70 from the starting power of the battery 80, and then starts the hydrogen production device 10 to produce hydrogen. The control device 50 supplies hydrogen to the first power generation device 30 until the amount of hydrogen in the storage tank 20 exceeds a predetermined storage amount, and supplies the power generated by the first power generation device 30 to the hydrogen production device 10. Supply. Thus, in the hydrogen supply system 1, a cycle of producing hydrogen by supplying power from the first power generation device 30 and generating power using the hydrogen and supplying power can be performed. That is, if the power generated by the first power generation device 30 is supplied to the hydrogen production device 10, the hydrogen production device 10 can continuously produce hydrogen.

  In the hydrogen supply system 1, if the amount of hydrogen in the storage tank 20 is equal to or greater than a predetermined storage amount, power can be supplied to the facility 200 or hydrogen can be supplied to the mobile body 300. For this reason, even if there is a demand for hydrogen that exceeds the production capacity of the hydrogen production apparatus 10, if the hydrogen in the storage tank 20 is supplied, this demand can be satisfied. Further, in the hydrogen supply system 1, when the hydrogen in the storage tank 20 decreases, the control device 50 causes the amount of hydrogen in the storage tank 20 to exceed a predetermined storage amount. As a result, in the hydrogen supply system 1, even if there is a demand for hydrogen exceeding the production capacity, the first power generator 30 can continue to generate power without running out of hydrogen, and the generated power is supplied to the hydrogen generator 10. The hydrogen production apparatus 10 continues to produce hydrogen.

  Therefore, in this hydrogen supply system 1, even if power is no longer supplied from the power system 100, the first power generation device 30 stably supplies power to the hydrogen production device 10, and the hydrogen production device 10 uses the first power generation device. 30 can be stably supplied with hydrogen.

  Furthermore, the hydrogen supply system 1 according to Embodiment 1 gives priority to the power generated by the first power generation device 30 over the hydrogen production device 10 over the outside until the amount of hydrogen in the storage tank 20 becomes equal to or greater than a predetermined storage amount. Supply.

  According to this configuration, a cycle of producing hydrogen by supplying power from the first power generation device 30 and generating power using the hydrogen and supplying power can be performed. For this reason, in this hydrogen supply system 1, even if power is no longer supplied from the power system 100, the first power generation device 30 stably supplies power from the hydrogen production device 10, and the hydrogen production device 10 performs the first power generation. The apparatus 30 can supply hydrogen stably.

  Furthermore, in the hydrogen supply system 1 according to the first embodiment, after the amount of hydrogen in the storage tank 20 becomes equal to or greater than the predetermined storage amount, the control device 50 generates the power generated by the first power generation device 30 as a hydrogen production device. 10, the power generated by the first power generation device 30 is supplied to the outside.

  According to this configuration, the control device 50 causes the facility 200 to supply the power generated by the first power generation device 30 when the amount of hydrogen in the storage tank 20 exceeds a predetermined storage amount. For this reason, even if electric power is no longer supplied from the electric power system 100, electric power can be stably supplied to the facility 200. As a result, the hydrogen supply system 1 can satisfy the demand for electric power for the facility 200.

  Furthermore, the hydrogen supply system 1 according to Embodiment 1 includes a hydrogen supply device 40 that supplies the hydrogen stored in the storage tank 20 to the outside in an irregular operation. The hydrogen supply device 40 supplies the hydrogen supplied from the storage tank 20 to the moving body 300. After supplying the electric power generated by the first power generation device 30 to the outside, the control device 50 removes surplus hydrogen obtained by subtracting the hydrogen supplied to the first power generation device 30 from the hydrogen produced by the hydrogen production device 10. The hydrogen supply device 40 is controlled so as to be supplied.

  According to this configuration, the hydrogen supply device 40 can supply surplus hydrogen and hydrogen in the storage tank 20 to the moving body 300 even when power is not supplied from the power system 100. For this reason, in this hydrogen supply system 1, the demand for hydrogen can be satisfied for the mobile unit 300 even during a disaster.

(Embodiment 2)
Next, the hydrogen supply system 1 in Embodiment 2 will be described.

  The hydrogen supply system 1 in the second embodiment is a case where a power failure occurs while the hydrogen supply system 1 is in operation. In the hydrogen supply system 1 according to the first embodiment, the battery 80 that supplies the starting power to the control device 50, the first power generation device 30, and the pump 70 is provided. However, the hydrogen supply system 1 according to the second embodiment includes: The battery 80 is not provided.

  Other configurations in the hydrogen supply system 1 are the same as those in the hydrogen supply system 1 according to the first embodiment. The same components are denoted by the same reference numerals, and detailed description thereof is omitted.

  The operation of the hydrogen supply system 1 configured as described above will be described with reference to FIGS.

  FIG. 6 is a flowchart showing the operation of the hydrogen supply system according to the second embodiment. FIG. 7 is a block diagram illustrating an example of power supply and hydrogen supply in the hydrogen supply system according to the second embodiment. 6 and 7 show a case where the hydrogen supply system 1 is in an operating state.

  The stop detection unit connected to the control device 50 detects a state in which power is not supplied from the power system 100 (S11), and inputs a stop signal indicating that a power failure has occurred to the control device 50.

  The control device 50 determines whether or not the amount of hydrogen in the storage tank 20 is equal to or greater than a predetermined storage amount (S12). When the amount of hydrogen in the storage tank 20 is equal to or greater than the predetermined storage amount (YES in S12), the first power generation device 30 supplies power to the facility 200 (S13).

  On the other hand, when the control device 50 determines that the amount of hydrogen in the storage tank 20 is not equal to or greater than the predetermined storage amount (NO in S12), the power generated by the first power generation device 30 is preferentially supplied to the hydrogen production device 10. . Then, the process returns to step S12.

  Next, the control device 50 determines whether or not power is supplied from the power system 100 (S14). If the stop signal is input from the stop detection unit, the control device 50 determines that the power is not yet supplied from the power system 100 (NO in S14).

  Next, the control device 50 determines whether there is surplus hydrogen obtained by subtracting the hydrogen supplied to the first power generation device 30 from the hydrogen produced by the hydrogen production device 10 (S15). When there is surplus hydrogen (YES in S15), control device 50 determines that hydrogen can be supplied to moving body 300. Then, hydrogen is supplied from the storage tank 20 to the moving body 300 via the hydrogen supply device 40 (S16). That is, surplus hydrogen is preferentially supplied next to hydrogen necessary for the first power generation apparatus 30 to generate electricity in the electric power used in the facility 200. Then, the process returns to step S12.

  In step S14, when no stop signal is input from the stop detection unit, control device 50 determines that power is being supplied from power system 100 (YES in S14). When the control device 50 determines that power is supplied from the power system 100, the flow of the hydrogen supply system 1 is terminated.

  By installing the hydrogen supply system 1 through the above steps S11 to S16, electric power can be supplied to the facility 200, or the mobile 300 hydrogen can be supplied.

  Next, the effect of the hydrogen supply system 1 in Embodiment 2 will be described. Other effects in the hydrogen supply system 1 are the same as those in the hydrogen supply system 1 of the first embodiment, and detailed description of the same effects is omitted.

  As described above, the hydrogen supply system 1 according to Embodiment 2 includes the hydrogen production apparatus 10 that produces hydrogen from a raw material containing hydrogen element, the storage tank 20 that stores the hydrogen supplied from the hydrogen production apparatus 10, and A first power generation device 30 that generates power in a regular operation using hydrogen stored in the storage tank 20 and a control device 50 that controls the first power generation device 30 and the hydrogen production device 10 are provided. When the first power generation device 30 is generating power and no power is supplied from the power system 100, the control device 50 supplies the power generated by the first power generation device 30 to the hydrogen production device 10, In addition, the hydrogen production apparatus 10 is controlled to supply hydrogen, and the electric power generated by the first power generation apparatus 30 is supplied to the hydrogen production apparatus 10 until the amount of hydrogen in the storage tank 20 becomes equal to or greater than a predetermined storage amount.

  According to this configuration, even if power is no longer supplied from the power system 100 in a state where the hydrogen supply system 1 is activated, the first power generation device 30 is operated using the power generated by the first power generation device 30. Can continue. For this reason, even in the hydrogen supply system 1 according to the second embodiment, the hydrogen production apparatus 10 is configured by the cycle of producing hydrogen by supplying power from the first power generation apparatus 30 and generating power using the hydrogen and supplying power. Hydrogen can continue to be produced.

(Modification)
Although the hydrogen supply system according to the present invention has been described based on the first and second embodiments, the present invention is not limited to these first and second embodiments.

  The pump 70 has been described as an example of being connected to the storage tank 20 via the pipe 92, but is not limited thereto. For example, a pump may be disposed in each of the piping 93 and the piping 94. Further, the first power generation device 30 and the hydrogen supply device 40 may be provided with pumps, respectively.

  Further, for example, in each of the above-described embodiments, in the hydrogen supply system 1, the hydrogen in the storage tank 20 continues to decrease due to the demand of the facility 200 and the moving body 300, and the amount of hydrogen stored in the storage tank 20 is reduced. If it becomes below fixed quantity, you may stop supply of the hydrogen to the mobile body 300. FIG.

  In the hydrogen supply system 1, a plurality of predetermined amounts may be set as the hydrogen storage amount. For example, when the first predetermined amount and the second predetermined amount are determined in the hydrogen storage amount, the supply of hydrogen to the moving body 300 is stopped if the first predetermined amount and the second predetermined amount are equal to or smaller than the second predetermined amount larger than the first predetermined amount. If the amount is less than or equal to the first predetermined amount, the supply of hydrogen to the facility 200 may be stopped. In addition, the first predetermined amount and the second predetermined amount may be arbitrarily determined as desired values.

  Furthermore, the control device 50 may be mounted on any of the hydrogen production device 10, the storage tank 20, the first power generation device 30, and the hydrogen supply device 40. The control device 50 may be a device (for example, an information processing device such as a computer) separate from the hydrogen production device 10, the storage tank 20, the first power generation device 30, and the hydrogen supply device 40.

  The control device 50 may be a circuit. These circuits may constitute one circuit as a whole, or may be separate circuits. Each of these circuits may be a general-purpose circuit or a dedicated circuit.

  In the hydrogen supply system 1, the hydrogen production apparatus 10 and the storage tank 20 may be realized as one facility. For example, the hydrogen production apparatus 10 and the storage tank 20 may be housed in the same housing, or the storage tank 20 may be built in the hydrogen production apparatus 10.

  The present invention can be realized not only as a hydrogen supply system but also as a hydrogen supply method and a program for causing a computer to execute the hydrogen supply method.

  In addition, the embodiment is realized by arbitrarily combining the components and functions in each embodiment without departing from the scope of the present invention, as well as forms obtained by subjecting each embodiment to various modifications conceived by those skilled in the art. This form is also included in the present invention.

  The present invention is useful as a hydrogen supply system for supplying hydrogen to a power generation device such as a fuel cell that generates power using hydrogen.

DESCRIPTION OF SYMBOLS 1 Hydrogen supply system 10 Hydrogen production apparatus 20 Storage tank 30 1st power generation device (power generation device)
40 Hydrogen supply device 50 Control device 80 Battery 100 Electric power system 300 Mobile body

Claims (5)

A hydrogen production device for producing hydrogen from a raw material containing hydrogen element;
A storage tank for storing hydrogen supplied from the hydrogen production device;
A power generation device for generating electricity in a regular operation using hydrogen stored in the storage tank;
A battery for supplying at least power for starting necessary for starting the power generation device;
A control device for controlling the power generation device and the hydrogen production device;
When the power generation device is in a stopped state and no power is supplied from the power system, the control device activates at least the power generation device with the starting power generated by the battery, and The power generation device supplies power generated by a power generation device to the hydrogen production device, and controls the hydrogen production device to supply hydrogen until the amount of hydrogen in the storage tank reaches a predetermined storage amount or more. A hydrogen supply system that supplies electric power generated by the to the hydrogen production apparatus. A hydrogen production device for producing hydrogen from a raw material containing hydrogen element;
A storage tank for storing hydrogen supplied from the hydrogen production device;
A power generation device for generating electricity in a regular operation using hydrogen stored in the storage tank;
A control device for controlling the power generation device and the hydrogen production device;
When the power generation apparatus is generating power and no power is supplied from the power system, the control apparatus supplies the power generated by the power generation apparatus to the hydrogen production apparatus and supplies hydrogen. A hydrogen supply system that controls the hydrogen production device to supply the electric power generated by the power generation device until the amount of hydrogen in the storage tank exceeds a predetermined storage amount.   The hydrogen supply system according to claim 1 or 2, wherein the electric power generated by the power generation device is preferentially supplied to the hydrogen production device from the outside until the amount of hydrogen in the storage tank becomes equal to or greater than a predetermined storage amount.   After the amount of hydrogen in the storage tank becomes equal to or greater than a predetermined storage amount, the control device supplies the power generated by the power generation device to the hydrogen production device and supplies the power generated by the power generation device to the outside. The hydrogen supply system according to claim 3 to be supplied. Furthermore, a hydrogen supply device for supplying hydrogen stored in the storage tank to the outside by irregular operation is provided,
The hydrogen supply device supplies hydrogen supplied from the storage tank to a moving body,
After supplying the electric power generated by the power generation device to the outside, the control device supplies the mobile body with surplus hydrogen obtained by subtracting the hydrogen supplied to the power generation device from the hydrogen produced by the hydrogen production device. The hydrogen supply system according to claim 4, wherein the hydrogen supply device is controlled.

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