Power supply system

Abstract

Provided is a power supply system capable of efficiently storing and releasing hydrogen. The power supply system comprises: a hydrogen storage unit (73); a holding unit (74) having a first holding device (74a) for holding a first hydrogen container (73a), a second holding device (74b) for holding a second hydrogen container (73b), and a third holding device (74c) for holding a third hydrogen container (73c); and a fuel cell (12) for generating electricity based on hydrogen supplied from the hydrogen storage unit (73). With respect to the hydrogen container (73a) receiving the supply of hydrogen from the hydrogen generation unit (71), during the period of receiving the supply of hydrogen, a valve (B01) between the hydrogen generation unit (71) and the fuel cell (12) is kept in an open state, and a valve (B02) between the hydrogen generation unit (71) and the fuel cell (12) is kept in a closed state. Regarding the hydrogen container (73a) that supplies hydrogen to the fuel cell (12), during the supply of hydrogen, the valve (B01) between the hydrogen generating unit (71) is closed, and the valve (B02) between the hydrogen generating unit (71) is opened. Regarding the hydrogen container (73a) that does not receive hydrogen from the hydrogen generating unit (71) and does not supply hydrogen to the fuel cell, the valve (B01) between the hydrogen generating unit (71) is closed, the valve (B02) between the hydrogen generating unit (12) is closed, and the hydrogen container (73a) is held in a removable state by a holding unit (74a).

Description

Technical Field

[0001] The present invention relates to a power supply system and the like. Background Art

[0002] Conventionally, as in Patent Document 1, there has been proposed a system that stores electric power and supplies the stored electric power to an electric vehicle or the like.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent Application Publication No. 2014-122399 Summary of the invention

[0006] However, the control of the accumulation and release of hydrogen has not been fully considered.

[0007] Therefore, an object of the present invention is to provide a power supply system capable of efficiently storing and releasing hydrogen.

[0008] The power supply system involved in the present invention comprises: a hydrogen generating unit; a hydrogen storage unit, which has a first hydrogen container, a second hydrogen container and a third hydrogen container for storing hydrogen obtained from the hydrogen generating unit; a holding unit, which has a first holding device for holding the first hydrogen container, a second holding device for holding the second hydrogen container, and a third holding device for holding the third hydrogen container; and a fuel cell, which generates electricity based on the hydrogen supplied from the hydrogen storage unit.

[0009] The first hydrogen container, the second hydrogen container, and the third hydrogen container each hold a hydrogen storage alloy therein and store hydrogen by occluding it.

[0010] The hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container that receives the supply of hydrogen from the hydrogen generator has its valve between itself and the hydrogen generator opened and its valve between itself and the fuel cell closed while receiving the supply of hydrogen.

[0011] The first hydrogen container, the second hydrogen container, and the third hydrogen container that supply hydrogen to the fuel cell have their valves to the hydrogen generator closed and their valves to the fuel cell open during the hydrogen supply.

[0012] Regarding the hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container which does not receive the supply of hydrogen from the hydrogen generating unit and does not supply hydrogen to the fuel cell, the valve between the hydrogen generating unit and the fuel cell is closed, and the hydrogen container is held on the holding unit in a removable state.

[0013] A power supply system that generates electricity based on hydrogen is provided with a hydrogen container that stores hydrogen (e.g., a first hydrogen container), a hydrogen container that releases hydrogen (e.g., a second hydrogen container), and a hydrogen container that is held in a removable state by a holding device without performing any operation of storing or releasing hydrogen (e.g., a third hydrogen container).

[0014] Therefore, the storage of hydrogen, the release of hydrogen, and the replacement of hydrogen containers can be performed simultaneously in each hydrogen container, so that the storage and release of hydrogen can be performed efficiently.

[0015] Preferably, the hydrogen storage unit has a monitoring unit including a first monitoring device having a first information transmitting unit that transmits a radio wave of a first frequency and a first communication unit that receives the radio wave from the first information transmitting unit.

[0016] The first information transmitting unit and the first communication unit are arranged in a positional relationship of sandwiching the hydrogen storage alloy of the first hydrogen container.

[0017] The power supply system includes a control unit that calculates a hydrogen filling rate of a first hydrogen tank based on information on at least one of radio wave intensity and a signal waveform of a radio wave from a first information transmitting unit obtained by a first communication unit.

[0018] If the amount of hydrogen absorbed by the hydrogen storage alloy changes, the shape of the hydrogen storage alloy changes. Based on this change, the intensity of the radio wave that can pass through and be received by the hydrogen storage alloy changes. Therefore, by configuring the information sending unit and the communication unit (receiving device) in a positional relationship sandwiching the hydrogen storage alloy, it is possible to obtain information related to the intensity of the radio wave that can pass through and be received by the hydrogen storage alloy, and based on the information related to the above-mentioned radio wave intensity, it is possible to calculate the amount of hydrogen absorbed by the hydrogen storage alloy, that is, the hydrogen filling rate of the hydrogen container containing the hydrogen storage alloy.

[0019] The hydrogen tank having a high hydrogen filling rate supplies hydrogen to the fuel cell, and the hydrogen tank having a low hydrogen filling rate receives hydrogen supply from the hydrogen generating unit, thereby enabling efficient storage and release of hydrogen.

[0020] In addition, preferably, the hydrogen storage unit has a monitoring unit including a first monitoring device, the first monitoring device having: a first information transmitting unit that emits a radio wave of a first frequency; and a first communication unit that receives the radio wave from the first information transmitting unit.

[0021] The first information transmitting unit and the first communication unit are arranged in a positional relationship of sandwiching the hydrogen storage alloy of the first hydrogen container.

[0022] The power supply system includes a control unit that, based on information related to at least one of the radio wave intensity and signal waveform of the radio wave from the first information sending unit obtained by the first communication unit, opens a first inlet valve that enables hydrogen supply to the first hydrogen container when the hydrogen filling rate of the first hydrogen container is lower than a hydrogen filling rate threshold, and closes the first inlet valve when the hydrogen filling rate of the first hydrogen container is higher than the hydrogen filling rate threshold.

[0023] Furthermore, it is preferable that the first hydrogen tank is made of a resin having radio wave transparency.

[0024] The first information transmitting unit and the first communication unit are attached to the outer wall of the first hydrogen container.

[0025] Preferably, the power supply system includes a heat conduction unit having a fan for supplying cooling air to the fuel cell and a guide path for guiding warm air obtained by heating the cooling air by the fuel cell to the first to third hydrogen tanks.

[0026] The power supply system includes a control unit that controls valves of the guide path so that warm air is supplied to a hydrogen tank among the first hydrogen tank, the second hydrogen tank, and the third hydrogen tank that supplies hydrogen to the fuel cell via the guide path.

[0027] The heat obtained by the fuel cell is conducted to the hydrogen container, so that the hydrogen storage alloy can be heated, and hydrogen can be easily released from the hydrogen storage alloy.

[0028] In addition, preferably, the power supply system includes a water heater that heats cold water.

[0029] The power supply system includes a hot water pipe that supplies hot water from a water heater to the first holding device, the second holding device, and the third holding device.

[0030] A heat conduction unit is provided, the heat conduction unit having a fan for supplying cooling air to the fuel cell and a guide path for guiding warm air obtained by heating the cooling air by the fuel cell to at least one of the water heater and the hot water pipe.

[0031] The heat obtained by the fuel cell is conducted to a water heater or the like to heat the hydrogen storage alloy, thereby making it easier for hydrogen to be released from the hydrogen storage alloy.

[0032] Furthermore, preferably, the hydrogen container among the first hydrogen container, the second hydrogen container, and the third hydrogen container that receives the supply of hydrogen from the hydrogen generating unit is held in a non-detachable state by the holding unit while receiving the supply of hydrogen.

[0033] The hydrogen container that supplies hydrogen to the fuel cell among the first hydrogen container, the second hydrogen container, and the third hydrogen container is held in a non-detachable state by the holding portion while supplying hydrogen.

[0034] Furthermore, preferably, the first holding device includes a first locking mechanism that enables the first hydrogen container to be removed when in an on state and that prevents the first hydrogen container from being removed when in an off state.

[0035] When both the valve between the hydrogen generating unit and the first hydrogen tank and the valve between the fuel cell and the first hydrogen tank are in the closed state, the first lock mechanism is in the on state.

[0036] Even when the power supply is interrupted and the lock mechanism is turned off, the hydrogen container can be prevented from accidentally coming out of the holding mechanism.

[0037] In addition, the hydrogen container can be removed under the condition that both the inlet valve and the outlet valve of the hydrogen container are in the closed state. Therefore, it is possible to prevent the hydrogen container from accidentally coming off the holding mechanism during the hydrogen filling process or the hydrogen release process.

[0038] Preferably, the power supply system includes a heat conducting unit that conducts heat generated by the fuel cell to a hydrogen container among the first hydrogen container, the second hydrogen container, and the third hydrogen container that supplies hydrogen to the fuel cell.

[0039] Effects of the Invention

[0040] As described above, according to the present invention, it is possible to provide a power supply system capable of efficiently storing and releasing hydrogen. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a diagram showing the configuration of the power supply system according to the present embodiment.

[0042] Figure 2 It is a diagram showing the flow of waste heat from the second DC power generation device. DETAILED DESCRIPTION

[0043] Hereinafter, this embodiment will be described with reference to the drawings.

[0044] In addition, the embodiments are not limited to the following embodiments. In addition, the content described in one embodiment can also be applied to other embodiments in principle. In addition, the embodiments and modifications can be appropriately combined.

[0045] The power supply system 1 of the present embodiment includes a DC power supply unit 10, an AC power supply unit 20, a conversion unit 30, a power storage unit 50, a control unit 60, a hydrogen supply unit 70, a heat transfer unit 90, switches (01st switch S01 to 10th switch S10), valves (01st valve B01 to 26th valve B26) (see Figure 1 , Figure 2 ).

[0046] In addition, Figure 1 In FIG. 1 , the locking mechanism (the first locking mechanism 74 a 1 and the like) of the hydrogen supply unit 70 and a part of the guide path 92 of the heat conduction unit 90 are omitted from illustration.

[0047] In addition, Figure 2 In FIG. 1 , the hydrogen storage alloy AM which cannot be seen from the outside is indicated by a dotted line.

[0048] The power supply system 1 generates electric power and supplies the generated electric power to an external load.

[0049] Furthermore, the power supply system 1 generates hydrogen and generates electricity based on the generated hydrogen.

[0050] The generated electric power is supplied to the load 100 .

[0051] The load 100 is an electrical device driven by AC power, such as an air conditioner.

[0052] (DC Power Supply Unit 10)

[0053] The DC power supply unit 10 includes a first DC power generation device 11 and a second DC power generation device 12 .

[0054] (First DC Power Generation Device 11)

[0055] The first DC power generation device 11 is a power generation device (a renewable energy-based power generation device) that generates DC power based on natural energy (renewable energy) such as a solar power generation device.

[0056] The first DC power generation device 11 is always in a state capable of generating power.

[0057] The electric power obtained by the first DC power generator 11 is supplied to the first power storage device 51 of the power storage unit 50 via the first conversion device 31 and the second conversion device 32 of the conversion unit 30 .

[0058] Furthermore, the electric power obtained by the first DC power generator 11 is supplied to the second power storage device 52 of the power storage unit 50 via the first converter 31 of the converter 30 .

[0059] Furthermore, the electric power obtained by the first DC power generation device 11 is supplied to the load 100 via the first conversion device 31 of the conversion unit 30 .

[0060] The first DC power generation device 11 includes a backflow prevention device such as a diode.

[0061] In the present embodiment, an example will be described in which the electric power obtained by the first DC power generator 11 is supplied to the hydrogen generator 71 via the first power storage device 51 .

[0062] However, the electric power obtained by the first DC power generation device 11 may be directly supplied to the hydrogen generation unit 71 without passing through the first power storage device 51 .

[0063] (Second DC Power Generation Device 12)

[0064] The second DC power generation device 12 is a power generation device (fuel cell) that generates power based on hydrogen.

[0065] When the electric power supplied from the first DC power generation device 11 is insufficient, the second DC power generation device 12 is in a state where electric power can be generated.

[0066] The electric power obtained by the second DC power generation device 12 is supplied to the third power storage device 53 of the power storage unit 50 via the third conversion device 33 of the conversion unit 30 .

[0067] The second DC power generation device 12 includes a backflow prevention device such as a diode.

[0068] (AC power supply unit 20)

[0069] The AC power supply unit 20 includes a first AC power generator 21 .

[0070] (First AC Power Generation Device 21)

[0071] The first AC power generator 21 is a power generator (renewable energy source power generator) that generates AC power based on natural energy (renewable energy), such as a wind power generator or a wave power generator.

[0072] The first AC power generator 21 is always in a state capable of generating power.

[0073] However, when the first AC generator 21 is a wind power generator and the wind force received by the first AC generator 21 exceeds a predetermined wind force, the first AC generator 21 is placed in a state where it cannot generate power.

[0074] The electric power obtained by the first AC power generator 21 is supplied to the hydrogen generator 71 of the hydrogen supply unit 70 via the fourth converter 34 of the converter 30 .

[0075] (Second AC Power Generation Device 22)

[0076] The AC power supply unit 20 may include a second AC power generation device 22 in place of the first AC power generation device 21 or in addition to the first AC power generation device 21 .

[0077] The second AC power generation device 22 is a power generation device such as an LP gas power generation device that generates AC power based on kinetic energy obtained from an internal combustion engine or an external combustion engine.

[0078] In the present embodiment, an example in which the electric power obtained by the AC power supply unit 20 is supplied to the hydrogen generation unit 71 will be described.

[0079] However, the electric power obtained by the AC power supply unit 20 may be supplied to the first power storage device 51 , the second power storage device 52 , the load 100 , and the like.

[0080] (Conversion Unit 30)

[0081] The conversion unit 30 includes first to fifth conversion devices 31 to 35 .

[0082] (First conversion device 31)

[0083] The first conversion device 31 is a DC / AC inverter.

[0084] The input side of the first conversion device 31 is connected to the first DC power generation device 11 via the 01st switch S01.

[0085] The output side of the first conversion device 31 is connected to the second conversion device 32, connected to the second power storage device 52 via the 02nd switch S02, and connected to the load 100 via the 03rd switch S03.

[0086] The first conversion device 31 converts the current form of the electric power obtained by the first DC power generation device 11 from direct current to alternating current.

[0087] (Second conversion device 32)

[0088] The second conversion device 32 includes an AC / DC converter.

[0089] The input side of the second conversion device 32 is connected to the first conversion device 31 .

[0090] The output side of the second conversion device 32 is connected to the first power storage device 51 .

[0091] The second conversion device 32 converts the electric power from the first conversion device 31 from alternating current to direct current.

[0092] (Third conversion device 33)

[0093] The third conversion device 33 includes a DC / DC converter.

[0094] The input side of the third conversion device 33 is connected to the second DC power generation device 12 via the 06th switch S06.

[0095] The output side of the third conversion device 33 is connected to the third power storage device 53 .

[0096] The third converter 33 converts the electric power obtained from the second DC power generator 12 into a predetermined voltage and a predetermined current.

[0097] (Fourth conversion device 34)

[0098] The fourth conversion device 34 includes an AC / DC converter.

[0099] The input side of the fourth conversion device 34 is connected to the first AC power generation device 21 via a fourth switch S04.

[0100] The output side of the fourth conversion device 34 is connected to the hydrogen generation unit 71 via the fifth switch S05.

[0101] The fourth conversion device 34 converts the current form of the electric power from the first AC power generation device 21 from AC to DC.

[0102] (Fifth conversion device 35)

[0103] The fifth conversion device 35 includes a DC / AC inverter.

[0104] The input side of the fifth conversion device 35 is connected to the third power storage device 53 via the ninth switch S09.

[0105] The output side of the fifth conversion device 35 is connected to the load 100 via the tenth switch S10.

[0106] The fifth conversion device 35 converts the current form of the electric power stored in the third power storage device 53 from direct current to alternating current.

[0107] (Electricity Storage Unit 50)

[0108] The power storage unit 50 includes a first power storage device 51 to a third power storage device 53 .

[0109] The electric power stored in the first power storage device 51 is mainly used to generate hydrogen, that is, to drive the hydrogen generation unit 71 .

[0110] The electric power stored in the second power storage device 52 is mainly used to drive each part of the electric power supply system 1 .

[0111] The electric power stored in the third power storage device 53 is mainly used to drive the load 100 .

[0112] (First Power Storage Device 51)

[0113] The first power storage device 51 includes a charging device and a power storage device for storing the electric power from the first DC power generator 11 .

[0114] The electric power stored in the first power storage device 51 is supplied to the hydrogen generating unit 71 .

[0115] That is, the electric power stored in the first power storage device 51 is used for electrolysis of water.

[0116] (Second Power Storage Device 52)

[0117] The second power storage device 52 includes a charging device and a power storage device for storing the electric power from the first DC power generation device 11 .

[0118] The electric power stored in the second power storage device 52 is supplied to each part of the electric power supply system 1 (control unit 60 , fan 91 , switch, valve, etc.).

[0119] (Third Power Storage Device 53)

[0120] The third power storage device 53 includes a charging device and a power storage device for storing the electric power from the second DC power generation device 12 .

[0121] The electric power stored in the third power storage device 53 is supplied to the load 100 .

[0122] (Control Unit 60)

[0123] The control unit 60 controls each unit of the power supply system 1 .

[0124] Specifically, the control unit 60 performs on / off control of the 01st switch S01 to the 10th switch S10, opening and closing control of the 01st valve B01 to the 26th valve B26, on / off control of the 1st locking mechanism 74a1 to the 3rd locking mechanism 74c1, etc. according to the status of each part of the power supply system 1.

[0125] When the second DC power generation device 12 generates electricity, the control unit 60 drives the fan 91 so that the fan 91 delivers cooling air to the second DC power generation device 12. The cooling air is heated by the second DC power generation device 12, and the warm air is supplied to the water heater 72b2, the hydrogen container that releases hydrogen in the hydrogen storage unit 73, and the like.

[0126] (Valve Control)

[0127] When filling the hydrogen container with hydrogen, the control unit 60 sets the inlet valve of the hydrogen container to an open state and the outlet valve to a closed state. In addition, the control unit 60 sets the cold water supply valve of the hydrogen container to an open state and the hot water supply valve of the holding device of the hydrogen container to a closed state. In addition, the control unit 60 sets the locking mechanism of the holding device holding the hydrogen container to an open state, and sets the hydrogen container to a state in which it cannot be removed from the holding device.

[0128] When releasing hydrogen from the hydrogen container, the control unit 60 sets the inlet valve of the hydrogen container to a closed state and the outlet valve to an open state. In addition, the control unit 60 sets the cold water supply valve of the hydrogen container to a closed state and sets the hot water supply valve of the holding device of the hydrogen container to an open state. In addition, the control unit 60 sets the locking mechanism of the holding device holding the hydrogen container to an off state, and sets the hydrogen container to a state in which it cannot be removed from the holding device.

[0129] When the hydrogen container is held in a detachable state, the control unit 60 sets the inlet valve and the outlet valve of the hydrogen container to a closed state. In addition, the control unit 60 sets the cold water supply valve and the hot water supply valve of the holding device of the hydrogen container to a closed state. In addition, the control unit 60 sets the locking mechanism of the holding device holding the hydrogen container to an on state, and sets the hydrogen container to a state in which it can be removed from the holding device.

[0130] The control unit 60 determines whether the hydrogen filling rate rh of the hydrogen tank during hydrogen filling is equal to or greater than the hydrogen filling rate threshold thrh based on the information from the monitoring unit 75 of the hydrogen supply unit 70 .

[0131] When the hydrogen filling rate rh is equal to or greater than the hydrogen filling rate threshold thrh, the control unit 60 closes the valve to stop the supply of hydrogen to the hydrogen tank. In addition, the control unit 60 closes the valve to stop the supply of cooling water to the hydrogen tank.

[0132] The control unit 60 or a recording device (not shown) records a database indicating the relationship between the radio wave intensity, the amount of hydrogen stored in the hydrogen storage alloy AM, and the hydrogen filling rate rh of the hydrogen container. The control unit 60 calculates the hydrogen filling rate rh of each hydrogen container based on information related to the radio wave intensity from the first communication unit 75a2 of the monitoring unit 75 and the like and the database.

[0133] The hydrogen filling rate rh is defined as the ratio of the storage amount (cc / g or wt%) of hydrogen filled in the hydrogen container (absorbed by the hydrogen storage alloy) to the maximum storage amount of hydrogen that can be filled in the hydrogen container.

[0134] The control unit 60 controls the valves of the guide path so that the warm air is supplied through the guide path 92 to the hydrogen tank among the first hydrogen tank 73 a , the second hydrogen tank 73 b , and the third hydrogen tank 73 c that supplies hydrogen to the second DC power generator 12 .

[0135] The control unit 60 controls the valves of the guide path so that the warm air is supplied to the first hydrogen container 73a, the second hydrogen container 73b, and the third hydrogen container 73c that receive hydrogen supply from the hydrogen generating unit 71 and the hydrogen containers held in a removable state by the holding device without passing through the guide path 92.

[0136] For example, the valve opening and closing control when the first hydrogen container 73a of the hydrogen storage unit 73 is filled with hydrogen, the second hydrogen container 73b of the hydrogen storage unit 73 is released, and the third hydrogen container 73c of the hydrogen storage unit 73 is kept in a detachable state will be described.

[0137] However, the second hydrogen container 73 b may be filled with hydrogen, hydrogen may be discharged from the third hydrogen container 73 c , and the first hydrogen container 73 a may be held in a detachable state.

[0138] Similarly, the third hydrogen container 73 c may be filled with hydrogen, hydrogen may be discharged from the first hydrogen container 73 a , and the second hydrogen container 73 b may be held in a detachable state.

[0139] When filling the first hydrogen container 73a with hydrogen, the control unit 60 opens the inlet valve (the 01st valve B01) of the first hydrogen container 73a and the valve (the 17th valve B17) of the first container 76a of the buffer container 76, and closes the outlet valve (the 02nd valve B02). In addition, the control unit 60 opens the cold water supply valve (the 08th valve B08, the 14th valve B14) of the first retaining device 74a, and closes the hot water supply valve (the 07th valve B07) of the first retaining device 74a. In addition, the control unit 60 opens the locking mechanism (the 1st locking mechanism 74a1) of the first retaining device 74a, and sets the first hydrogen container 73a to a state in which it cannot be removed from the first retaining device 74a.

[0140] When hydrogen is released from the second hydrogen container 73b, the control unit 60 sets the inlet valve (the 03rd valve B03) of the second hydrogen container 73b to a closed state, and sets the outlet valve (the 04th valve B04) and the valve (the 18th valve B18) of the second container 76b of the buffer container 76 to an open state. In addition, the control unit 60 sets the cold water supply valve (the 10th valve B10) of the second retaining device 74b to a closed state, and sets the hot water supply valve (the 09th valve B09, the 13th valve B13) of the second retaining device 74b to an open state. In addition, the control unit 60 sets the locking mechanism (the second locking mechanism 74b1) of the second retaining device 74b to a disconnected state, and sets the second hydrogen container 73b to a state in which it cannot be removed from the second retaining device 74b.

[0141] When the third hydrogen container 73c is held in the third holding device 74c in a detachable state, the control unit 60 sets the inlet valve (the 05th valve B05) and the outlet valve (the 06th valve B06) of the third hydrogen container 73c to a closed state. In addition, the control unit 60 sets the cold water supply valve (the 12th valve B12) and the hot water supply valve (the 11th valve B11) of the third holding device 74c to a closed state. In addition, the control unit 60 sets the locking mechanism (the 3rd locking mechanism 74c1) of the third holding device 74c to an on state, and sets the third hydrogen container 73c to a state that can be removed from the third holding device 74c.

[0142] The control unit 60 determines whether the hydrogen filling rate rh of the first hydrogen tank 73a during hydrogen filling is equal to or higher than the hydrogen filling rate threshold thrh based on information from the first monitoring device 75a of the monitoring unit 75 of the hydrogen supply unit 70 .

[0143] When the hydrogen filling rate rh is higher than the hydrogen filling rate threshold value thrh, the control unit 60 closes the valve (the 01st valve B01) to stop the supply of hydrogen to the first hydrogen tank 73a. In addition, the control unit 60 closes the valve (the 08th valve B08, the 14th valve B14) to stop the supply of cooling water to the first hydrogen tank 73a.

[0144] The control unit 60 controls the valve of the guide path so that the warm air is supplied to the second hydrogen tank 73 b via the guide path 92 .

[0145] Furthermore, the control unit 60 controls the valves of the guide paths so that the warm air is supplied to the first hydrogen tank 73 a and the third hydrogen tank 73 c without passing through the guide path 92 .

[0146] Specifically, the 23rd valve B23 and the 25th valve B25 are in the open state, and the 24th valve B24 and the 26th valve B26 are in the closed state.

[0147] (Hydrogen supply unit 70)

[0148] The hydrogen supply unit 70 includes a hydrogen generating unit 71 , a water supply unit 72 , a hydrogen storage unit 73 , a holding unit 74 , a monitoring unit 75 , a buffer container 76 , a high-pressure hydrogen storage bottle 77 , a pressure reduction adjusting unit 78 , and a gas-liquid separator 79 .

[0149] (Hydrogen Generation Unit 71)

[0150] The hydrogen generation unit 71 electrolyzes an electrolyte such as water to generate hydrogen, and stores the hydrogen in the hydrogen storage unit 73 .

[0151] The water generated by the second DC power generation device 12 can also be used as an electrolyte.

[0152] The hydrogen generation unit 71 includes a dehumidifier for dehumidifying the generated hydrogen.

[0153] In the present embodiment, an example is described in which the hydrogen generated by the hydrogen generating unit 71 is supplied to the second DC power generation device 12 via the hydrogen storage unit 73. However, the hydrogen generated by the hydrogen generating unit 71 may be supplied to an external device.

[0154] (Water supply unit 72)

[0155] The water supply unit 72 includes a first water supply device 72a and a second water supply device 72b.

[0156] (First water supply device 72a)

[0157] The first water supply device 72a includes a first water intake portion 72a1.

[0158] The first water intake unit 72 a 1 takes in an electrolyte from the outside and supplies the electrolyte to the hydrogen generation unit 71 .

[0159] (Second water supply device 72b)

[0160] The second water supply device 72b includes a second water intake portion 72b1, a water heater 72b2, a hot water tank 72b3, and a cold water tank 72b4.

[0161] The second water intake unit 72b1 takes in water from the outside.

[0162] A part of the taken-in water is stored in the hot water tank 72b3 in a heated state via the water heater 72b2.

[0163] The remaining portion of the taken-in water is stored in the cold water container 72b4 in an unheated state.

[0164] The water heater 72b2 is composed of a solar water heater or the like, and heats a part of the water taken in by the second water intake unit 72b1. The water heater 72b2 may be composed of a water heater using a fire such as gas.

[0165] The hot water tank 72b3 stores hot water, which is used to heat the hydrogen tank during the release of hydrogen.

[0166] The cold water container 72b4 stores cold water, and the cold water is used to cool the hydrogen container during hydrogen filling.

[0167] (Hydrogen storage unit 73)

[0168] The hydrogen storage unit 73 includes first to third hydrogen containers 73 a to 73 c .

[0169] The first to third hydrogen containers 73a to 73c each hold a hydrogen storage alloy AM therein and store hydrogen by occluding it.

[0170] The first hydrogen container 73 a is detachably held by a first holding device 74 a of the holding portion 74 .

[0171] The second hydrogen container 73 b is held in a detachable state by a second holding device 74 b of the holding portion 74 .

[0172] The third hydrogen container 73 c is held in a detachable state by a third holding device 74 c of the holding portion 74 .

[0173] Each of the first to third hydrogen containers 73a to 73c is made of a resin having radio wave transparency.

[0174] A first information transmitting unit 75a1 and a first communication unit 75a2 of a first monitoring device 75a described later are attached to the outer wall of the first hydrogen container 73a.

[0175] A second information transmitting unit 75b1 and a second communication unit 75b2 of a second monitoring device 75b described later are attached to the outer wall of the second hydrogen container 73b.

[0176] A third information transmitting unit 75c1 and a third communication unit 75c2 of a third monitoring device 75c described later are attached to the outer wall of the third hydrogen container 73c.

[0177] However, the first monitoring device 75a may be provided inside the first hydrogen container 73a. In this case, the first hydrogen container 73a may be made of metal.

[0178] Similarly, the second monitoring device 75b may be provided inside the second hydrogen container 73b. In this case, the second hydrogen container 73b may be made of metal.

[0179] Similarly, the third monitoring device 75c may be provided inside the third hydrogen container 73c. ​​In this case, the third hydrogen container 73c may be made of metal.

[0180] The hydrogen stored in the first to third hydrogen containers 73 a to 73 c is supplied to the second DC power generation device 12 .

[0181] When one of the first to third hydrogen containers 73a to 73c absorbs hydrogen, the remaining one of the first to third hydrogen containers 73a to 73c releases hydrogen, and the remaining other hydrogen container does not absorb or release hydrogen but is made detachable.

[0182] The hydrogen container removed from the holding device can be used in other external devices.

[0183] (Holding section 74)

[0184] The holding portion 74 includes first to third holding devices 74a to 74c.

[0185] (First Holding Device 74a)

[0186] The first holding device 74a heats the first hydrogen container 73a using the hot water in the hot water container 72b3 or cools the first hydrogen container 73a using the cold water in the cold water container 72b4.

[0187] When storing hydrogen, the first holding device 74a cools the first hydrogen container 73a using the cold water in the cold water container 72b4.

[0188] The first holding device 74a includes a first locking mechanism 74a1.

[0189] Regarding the first locking mechanism 74a1, when it is in the on state (power-on state), the first hydrogen container 73a held by the first holding device 74a is in a removable state, and when it is in the off state (non-power-on state), the first hydrogen container 73a held by the first holding device 74a is in a non-removable state.

[0190] The on / off state of the first locking mechanism 74a1 is preferably linked to the open / closed state of the valve (the first valve B01) between the hydrogen generating unit 71 and the first hydrogen container 73a, and the open / closed state of the valve (the second valve B02) between the second DC power generation device 12 and the first hydrogen container 73a.

[0191] When both the valve (the first valve B01) between the hydrogen generating unit 71 and the first hydrogen container 73a and the valve (the second valve B02) between the second DC power generator 12 and the first hydrogen container 73a are closed, the first locking mechanism 74a1 is turned on.

[0192] When the first locking mechanism 74a1 is in the on state, both the valve between the hydrogen generating unit 71 and the first hydrogen container 73a (the first valve B01) and the valve between the second DC power generator 12 and the first hydrogen container 73a (the second valve B02) are in the closed state.

[0193] (Second holding device 74b)

[0194] The second holding device 74b heats the second hydrogen container 73b using the hot water in the hot water container 72b3 or cools the second hydrogen container 73b using the cold water in the cold water container 72b4.

[0195] When storing hydrogen, the second holding device 74b cools the second hydrogen container 73b using the cold water in the cold water container 72b4.

[0196] The second holding device 74b includes a second locking mechanism 74b1.

[0197] Regarding the second locking mechanism 74b1, when it is in the on state (power-on state), the second hydrogen container 73b held by the second holding device 74b is in a state that can be removed, and when it is in the off state (non-power-on state), the second hydrogen container 73b held by the second holding device 74b is in a state that cannot be removed.

[0198] The on / off state of the second locking mechanism 74b1 is preferably linked to the open / closed state of the valve (the 3rd valve B03) between the hydrogen generating unit 71 and the second hydrogen container 73b, and the open / closed state of the valve (the 4th valve B04) between the second DC power generation device 12 and the second hydrogen container 73b.

[0199] When both the valve (the 03rd valve B03) between the hydrogen generating unit 71 and the second hydrogen container 73b and the valve (the 04th valve B04) between the second DC power generator 12 and the second hydrogen container 73b are in the closed state, the second locking mechanism 74b1 is in the on state.

[0200] When the second locking mechanism 74b1 is in the on state, both the valve (the 03rd valve B03) between the hydrogen generating unit 71 and the second hydrogen container 73b and the valve (the 04th valve B04) between the second DC power generator 12 and the second hydrogen container 73b are in the closed state.

[0201] (Third holding device 74c)

[0202] The third holding device 74c heats the third hydrogen container 73c using the hot water in the hot water container 72b3 or cools the third hydrogen container 73c using the cold water in the cold water container 72b4.

[0203] When storing hydrogen, the third holding device 74c cools the third hydrogen container 73c using the cold water in the cold water container 72b4.

[0204] The third holding device 74c includes a third locking mechanism 74c1.

[0205] The third locking mechanism 74c1, when in the on state (power-on state), enables the third hydrogen container 73c held by the third holding device 74c to be removed, and when in the off state (non-power-on state), enables the third hydrogen container 73c held by the third holding device 74c to be unable to be removed.

[0206] The on / off state of the third locking mechanism 74c1 is preferably linked to the open / closed state of the valve (the 05th valve B05) between the hydrogen generation unit 71 and the third hydrogen container 73c, and the open / closed state of the valve (the 06th valve B06) between the second DC power generation device 12 and the third hydrogen container 73c.

[0207] When both the valve (the 05th valve B05) between the hydrogen generating unit 71 and the third hydrogen container 73c and the valve (the 06th valve B06) between the second DC power generator 12 and the third hydrogen container 73c are in the closed state, the third locking mechanism 74c1 is in the on state.

[0208] When the third locking mechanism 74c1 is in the on state, both the valve (the 05th valve B05) between the hydrogen generating unit 71 and the third hydrogen container 73c and the valve (the 06th valve B06) between the second DC power generation device 12 and the third hydrogen container 73c are in the closed state.

[0209] (Monitoring Department 75)

[0210] The monitoring unit 75 includes first to third monitoring devices 75a to 75c.

[0211] (First Monitoring Device 75a)

[0212] The first monitoring device 75a is detachably mounted on the first hydrogen container 73a.

[0213] The first monitoring device 75a includes a first information transmitting unit 75a1 and a first communication unit 75a2.

[0214] The first monitoring device 75a is attached to the first hydrogen container 73a in a positional relationship such that the first information transmitting unit 75a1 and the first communication unit 75a2 sandwich the hydrogen storage alloy AM disposed inside the first hydrogen container 73a.

[0215] The first information transmitting unit 75a1 transmits a radio wave of the first frequency f1, and the first communication unit 75a2 receives the radio wave of the first frequency f1.

[0216] The first communication unit 75 a 2 transmits information on the radio wave intensity of the radio wave of the first frequency f1 or information on the signal waveform of the received radio wave to the control unit 60 .

[0217] The signal transmission from the first communication unit 75a2 to the control unit 60 may be performed wirelessly or by wire.

[0218] The wireless communication means between the first information transmission unit 75a1 and the first communication unit 75a2 is performed in the communication method of the RF tag. However, the wireless communication means is not limited to the communication method of the RF tag, and for example, a method of sending its own identification information to the outside while the wireless communication means is in an on state, IEEE802.15.1 (Bluetooth (registered trademark)), IEEE802.11 (wireless LAN), etc. can also be considered.

[0219] The wireless communication means for the wireless communication between the first communication unit 75a2 and the control unit 60 may be, for example, a method of sending its own identification information to the outside while the wireless communication means is in an on state, IEEE802.15.1 (Bluetooth (registered trademark)), IEEE802.11 (wireless LAN), etc.

[0220] (Second monitoring device 75b)

[0221] The second monitoring device 75b is detachably mounted on the second hydrogen container 73b.

[0222] The second monitoring device 75b includes a second information transmitting unit 75b1 and a second communication unit 75b2.

[0223] The second monitoring device 75b is attached to the second hydrogen container 73b in a positional relationship such that the second information transmitting unit 75b1 and the second communication unit 75b2 sandwich the hydrogen storage alloy AM disposed inside the second hydrogen container 73b.

[0224] The second information transmitting unit 75b1 transmits the radio wave of the second frequency f2, and the second communication unit 75b2 receives the radio wave of the second frequency f2.

[0225] The second communication unit 75 b 2 transmits information on the intensity of the radio wave of the second frequency f2 or information on the signal waveform of the received radio wave to the control unit 60 .

[0226] The signal transmission from the second communication unit 75b2 to the control unit 60 may be performed wirelessly or wiredly.

[0227] The wireless communication means between the second information transmission unit 75b1 and the second communication unit 75b2 is performed in the communication method of the RF tag. However, the wireless communication means is not limited to the communication method of the RF tag, and for example, a method of sending its own identification information to the outside while the wireless communication means is in an on state, IEEE802.15.1 (Bluetooth (registered trademark)), IEEE802.11 (wireless LAN), etc. can also be considered.

[0228] The wireless communication means for wireless communication between the second communication unit 75b2 and the control unit 60 may be, for example, a method of sending its own identification information to the outside while the wireless communication means is in an on state, IEEE802.15.1 (Bluetooth (registered trademark)), IEEE802.11 (wireless LAN), etc.

[0229] (Third monitoring device 75c)

[0230] The third monitoring device 75c is detachably mounted on the third hydrogen container 73c.

[0231] The third monitoring device 75c includes a third information transmitting unit 75c1 and a third communication unit 75c2.

[0232] The third monitoring device 75c is attached to the third hydrogen container 73c in a positional relationship such that the third information transmitting unit 75c1 and the third communication unit 75c2 sandwich the hydrogen storage alloy AM disposed inside the third hydrogen container 73c.

[0233] The third information transmitting unit 75c1 transmits the radio wave of the third frequency f3, and the third communication unit 75c2 receives the radio wave of the third frequency f3.

[0234] The third communication unit 75 c 2 transmits information on the radio wave intensity of the radio wave of the third frequency f3 or information on the signal waveform of the received radio wave to the control unit 60 .

[0235] The signal transmission from the third communication unit 75c2 to the control unit 60 may be performed wirelessly or by wire.

[0236] The wireless communication means between the third information transmission unit 75c1 and the third communication unit 75c2 is performed in the communication method of the RF tag. However, the wireless communication means is not limited to the communication method of the RF tag, and for example, a method of sending its own identification information to the outside while the wireless communication means is in an on state, IEEE802.15.1 (Bluetooth (registered trademark)), IEEE802.11 (wireless LAN), etc. can also be considered.

[0237] The wireless communication means for the wireless communication between the third communication unit 75c2 and the control unit 60 may be, for example, a method of sending its own identification information to the outside while the wireless communication means is in an on state, IEEE802.15.1 (Bluetooth (registered trademark)), IEEE802.11 (wireless LAN), etc.

[0238] The first frequency f1, the second frequency f2, and the third frequency f3 may be configured with the same frequency, but are preferably configured with different frequencies in order to prevent malfunction.

[0239] (Buffer container 76)

[0240] The buffer container 76 includes a first container 76a and a second container 76b.

[0241] The first container 76 a temporarily stores hydrogen when the hydrogen storage unit 73 is filled with hydrogen from the hydrogen generation unit 71 .

[0242] The second container 76 b temporarily stores hydrogen when the second DC power generator 12 is filled with hydrogen from the hydrogen storage unit 73 .

[0243] (High-pressure hydrogen storage bottle 77)

[0244] The high-pressure hydrogen storage bottle 77 is used in an emergency when the hydrogen filled in the hydrogen storage section 73 is insufficient.

[0245] (Decompression adjustment unit 78)

[0246] The pressure reduction adjusting section 78 includes a first pressure reduction adjusting device 78 a and a second pressure reduction adjusting device 78 b .

[0247] The first pressure reduction regulating device 78 a regulates the pressure of hydrogen from the high-pressure hydrogen tank 77 .

[0248] The second pressure reduction regulator 78 b regulates the pressure of hydrogen supplied from the first hydrogen tank 73 a and the like to the second DC power generation device 12 .

[0249] (Gas-Liquid Separator 79)

[0250] The gas-liquid separator 79 separates liquid and gas of a substance including hydrogen discharged from the first hydrogen container 73 a and the like.

[0251] (Heat conduction portion 90)

[0252] The heat conducting unit 90 includes a fan 91 and a guide path 92 .

[0253] The fan 91 supplies cooling air to the heat generating region of the second DC power generator 12 .

[0254] The guide path 92 includes: a path for guiding the cooling air from the fan 91 to the heating area of ​​the second DC power generation device 12; and a path for guiding the warm air heated in the heating area to the water heater 72b2, the first hydrogen container 73a, the second hydrogen container 73b and the third hydrogen container 73c.

[0255] The guide path 92 can guide the hot air to the hot water pipe P2.

[0256] (Switch No. 01 S01)

[0257] The first switch S01 is provided between the first DC power generation device 11 and the first conversion device 31 .

[0258] The 01st switch S01 performs on-off control of the power supply from the first DC power generation device 11 to the first conversion device 31 .

[0259] (Switch No. 02 S02)

[0260] The second switch S02 is provided between the first conversion device 31 and the second power storage device 52 .

[0261] The second switch S02 performs on / off control of the supply of electric power from the first DC power generator 11 to the second power storage device 52 via the first conversion device 31 .

[0262] (Switch No. 03 S03)

[0263] The third switch S03 is provided between the first conversion device 31 and the load 100 .

[0264] The third switch S03 performs on / off control of the power supply from the first DC power generation device 11 to the load 100 via the first conversion device 31 .

[0265] (Switch No. 04 S04)

[0266] The fourth switch S04 is provided between the first AC power generation device 21 and the fourth conversion device 34 .

[0267] The 04th switch S04 performs on-off control of the power supply from the first AC power generation device 21 to the fourth conversion device 34 .

[0268] (Switch No. 05 S05)

[0269] The fifth switch S05 is provided between the fourth conversion device 34 and the hydrogen generation unit 71 .

[0270] The 05th switch S05 performs on-off control of the power supply from the first AC power generation device 21 to the hydrogen generation unit 71 via the fourth conversion device 34 .

[0271] (Switch No. 06 S06)

[0272] The sixth switch S06 is provided between the second DC power generation device 12 and the third conversion device 33 .

[0273] The 06th switch S06 performs on-off control of the power supply from the second DC power generation device 12 to the third conversion device 33.

[0274] (Switch No. 07 S07)

[0275] The seventh switch S07 is provided between the first power storage device 51 and the hydrogen generation unit 71 .

[0276] The seventh switch S07 performs on-off control of the power supply from the first power storage device 51 to the hydrogen generating unit 71 .

[0277] (Switch No. 08 S08)

[0278] The eighth switch S08 is provided between the second power storage device 52 and the control unit 60 and the like.

[0279] The eighth switch S08 performs on-off control of the power supply from the second power storage device 52 to the control unit 60 and the like.

[0280] (Switch No. 09 S09)

[0281] The ninth switch S09 is provided between the third power storage device 53 and the fifth conversion device 35 .

[0282] The ninth switch S09 performs on-off control of the power supply from the third power storage device 53 to the fifth conversion device 35 .

[0283] (10th switch S10)

[0284] The tenth switch S10 is provided between the fifth conversion device 35 and the load 100 .

[0285] The tenth switch S10 performs on-off control of the power supply from the third power storage device 53 to the load 100 via the fifth conversion device 35 .

[0286] Either the 9th switch S09 or the 10th switch S10 may be omitted.

[0287] (Valve No. 01 B01)

[0288] The first valve B01 is provided on the hydrogen pipe P1 between the hydrogen generating unit 71 and the first hydrogen container 73a.

[0289] The 01st valve B01 serves as an inlet valve (first inlet valve) of the first hydrogen container 73a, and performs on / off control of the supply of hydrogen from the hydrogen generating unit 71 to the first hydrogen container 73a.

[0290] (Valve No. 02 B02)

[0291] The second valve B02 is provided on the hydrogen pipe P1 between the first hydrogen tank 73a and the second pressure reduction regulating device 78b.

[0292] The second valve B02 serves as an outlet valve (first outlet valve) of the first hydrogen container 73a and performs on / off control of the supply of hydrogen from the first hydrogen container 73a to the second DC power generation device 12 via the second pressure reduction regulating device 78b.

[0293] (Valve No. 03 B03)

[0294] The third valve B03 is provided on the hydrogen pipe P1 between the hydrogen generating unit 71 and the second hydrogen container 73b.

[0295] The third valve B03 serves as an inlet valve (second inlet valve) of the second hydrogen container 73b and performs on / off control of the supply of hydrogen from the hydrogen generating unit 71 to the second hydrogen container 73b.

[0296] (Valve No. 4 B04)

[0297] The fourth valve B04 is provided on the hydrogen pipe P1 between the second hydrogen tank 73b and the second pressure reduction regulating device 78b.

[0298] The 04th valve B04 serves as an outlet valve (second outlet valve) of the second hydrogen container 73b and performs on / off control of the supply of hydrogen from the second hydrogen container 73b to the second DC power generation device 12 via the second pressure reduction regulating device 78b.

[0299] (Valve No. 05 B05)

[0300] The fifth valve B05 is provided on the hydrogen pipe P1 between the hydrogen generating unit 71 and the third hydrogen container 73c.

[0301] The 05th valve B05 serves as an inlet valve (third inlet valve) of the third hydrogen container 73c and performs on-off control of the supply of hydrogen from the hydrogen generating unit 71 to the third hydrogen container 73c.

[0302] (Valve No. 06 B06)

[0303] The sixth valve B06 is provided on the hydrogen pipe P1 between the third hydrogen tank 73c and the second pressure reduction regulating device 78b.

[0304] The 06th valve B06 serves as an outlet valve (third outlet valve) of the third hydrogen container 73c and performs on-off control of the supply of hydrogen from the third hydrogen container 73c to the second DC power generation device 12 via the second pressure reduction regulating device 78b.

[0305] (Valve No. 07 B07)

[0306] The 07th valve B07 is provided on the hot water pipe P2 between the hot water container 72b3 and the first retaining device 74a and on the side close to the first retaining device 74a.

[0307] The No. 07 valve B07 serves as a hot water supply valve of the first holding device 74a and performs on / off control of hot water supply from the hot water tank 72b3 to the first holding device 74a.

[0308] (Valve No. 08 B08)

[0309] The 08th valve B08 is provided on the cold water pipe P3 between the cold water container 72b4 and the first retaining device 74a and on the side close to the first retaining device 74a.

[0310] The 08th valve B08 serves as a cold water supply valve of the first holding device 74a and performs on-off control of the cold water supply from the cold water tank 72b4 to the first holding device 74a.

[0311] (Valve No. 09 B09)

[0312] The 9th valve B09 is provided on the hot water pipe P2 between the hot water container 72b3 and the second retaining device 74b and on the side close to the second retaining device 74b.

[0313] The 9th valve B09 serves as a hot water supply valve of the second holding device 74b and performs on / off control of hot water supply from the hot water tank 72b3 to the second holding device 74b.

[0314] (Valve No. 10 B10)

[0315] The tenth valve B10 is provided on the cold water pipe P3 between the cold water container 72b4 and the second holding device 74b and on the side close to the second holding device 74b.

[0316] The tenth valve B10 serves as a cold water supply valve of the second holding device 74b and performs on / off control of the supply of cold water from the cold water tank 72b4 to the second holding device 74b.

[0317] (Valve No. 11 B11)

[0318] The 11th valve B11 is provided on the hot water pipe P2 between the hot water tank 72b3 and the third holding device 74c and on the side close to the third holding device 74c.

[0319] The 11th valve B11 serves as a hot water supply valve of the third holding device 74c and performs on / off control of hot water supply from the hot water tank 72b3 to the third holding device 74c.

[0320] (Valve No. 12 B12)

[0321] The 12th valve B12 is provided on the cold water pipe P3 between the cold water container 72b4 and the third holding device 74c and on the side close to the third holding device 74c.

[0322] The 12th valve B12 serves as a cold water supply valve of the third holding device 74c and performs on / off control of the supply of cold water from the cold water tank 72b4 to the third holding device 74c.

[0323] (Valve No. 13 B13)

[0324] The 13th valve B13 is provided on the hot water pipe P2 between the hot water container 72b3 and the first to third retaining devices 74a to 74c and is provided on the side close to the hot water container 72b3.

[0325] The 13th valve B13 performs on / off control of the hot water supply from the hot water tank 72b3 to the first to third holding devices 74a to 74c.

[0326] The 13th valve B13 may be omitted.

[0327] (Valve No. 14 B14)

[0328] The 14th valve B14 is provided on the cold water pipe P3 between the cold water container 72b4 and the first to third retaining devices 74a to 74c and on the side close to the cold water container 72b4.

[0329] The 14th valve B14 performs on-off control of the supply of cold water from the cold water tank 72b4 to the first to third holding devices 74a to 74c.

[0330] The fourteenth valve B14 may be omitted.

[0331] (Valve No. 15 B15)

[0332] The 15th valve B15 is provided on the hot water pipe P2 between the hot water tank 72b3 and the discharge end of the hot water pipe P2 and is provided on the side close to the discharge end.

[0333] The 15th valve B15 performs on / off control of hot water discharge from the hot water tank 72b3.

[0334] (Valve No. 16 B16)

[0335] The 16th valve B16 is provided on the cold water pipe P3 between the cold water tank 72b4 and the discharge end of the cold water pipe P3 and is provided on the side close to the discharge end.

[0336] The 16th valve B16 performs on / off control of the cold water discharge from the cold water tank 72b4.

[0337] (Valve No. 17 B17)

[0338] The seventeenth valve B17 is provided on the hydrogen pipe P1 between the hydrogen generating unit 71 and the first container 76 a of the buffer container 76 .

[0339] The 17th valve B17 adjusts the amount of hydrogen supplied from the first tank 76a to the first hydrogen tank 73a and the like.

[0340] (Valve No. 18 B18)

[0341] The eighteenth valve B18 is provided on the hydrogen pipe P1 between the second container 76 b of the buffer container 76 and the second pressure reduction regulating device 78 b .

[0342] The eighteenth valve B18 adjusts the amount of hydrogen supplied from the second container 76 b to the second DC power generation device 12 .

[0343] (Valve No. 19 B19)

[0344] The nineteenth valve B19 is provided on the hydrogen pipe P1 between the first pressure-reducing regulating device 78a and the second pressure-reducing regulating device 78b.

[0345] The 19th valve B19 adjusts the amount of hydrogen supplied from the high-pressure hydrogen storage tank 77 to the second DC power generation device 12 .

[0346] (Valve No. 20 B20)

[0347] The 20th valve B20 is provided on the hydrogen pipe P1 between the second pressure reduction regulating device 78 b and the gas-liquid separator 79 .

[0348] The 20th valve B20 adjusts the amount of hydrogen discharged from the first hydrogen container 73a and the like to the outside.

[0349] (Valve No. 21 B21)

[0350] The 21st valve B21 is provided on the hydrogen pipe P1 between the second pressure reducing regulating device 78 b and the second DC power generating device 12 .

[0351] The 21st valve B21 adjusts the amount of hydrogen supplied from the first hydrogen tank 73 a and the like to the second DC power generation device 12 .

[0352] (Valve No. 22 B22)

[0353] The 22nd valve B22 is provided on the hydrogen pipe P1 between the first hydrogen tank 73a and the like and the discharge end of the hydrogen pipe P1.

[0354] The 22nd valve B22 is used as a relief valve.

[0355] (Valve No. 23 B23)

[0356] The 23rd valve B23 is provided on the guide path 92 between the second DC power generation device 12 and the water heater 72 b 2 .

[0357] The 23rd valve B23 performs on-off control of the supply of warm air from the heat generation area of ​​the second DC power generation device 12 to the water heater 72 b 2 .

[0358] (Valve No. 24 B24)

[0359] The 24th valve B24 is provided on the guide path 92 between the second DC power generation device 12 and the first hydrogen tank 73 a .

[0360] The 24th valve B24 performs on-off control of the supply of warm air from the heat generating area of ​​the second DC power generation device 12 to the first hydrogen tank 73 a .

[0361] (Valve No. 25 B25)

[0362] The 25th valve B25 is provided on the guide path 92 between the second DC power generation device 12 and the second hydrogen tank 73 b .

[0363] The 25th valve B25 performs on-off control of the supply of warm air from the heat generating area of ​​the second DC power generator 12 to the second hydrogen tank 73 b.

[0364] (Valve No. 26 B26)

[0365] The 26th valve B26 is provided on the guide path 92 between the second DC power generation device 12 and the third hydrogen tank 73 c .

[0366] The 26th valve B26 performs on-off control of the supply of warm air from the heat generating area of ​​the second DC power generation device 12 to the third hydrogen tank 73 c.

[0367] (Effect of valve control of three hydrogen tanks)

[0368] In the power supply system that generates electricity based on hydrogen, there are provided a hydrogen container that stores hydrogen (for example, the first hydrogen container 73a), a hydrogen container that releases hydrogen (for example, the second hydrogen container 73b), and a hydrogen container that is held in a removable state by a holding device without performing any operation of storing or releasing hydrogen (for example, the third hydrogen container 73c).

[0369] Therefore, the storage of hydrogen, the release of hydrogen, and the replacement of hydrogen containers can be performed simultaneously in each hydrogen container, so that the storage and release of hydrogen can be performed efficiently.

[0370] (Effect of calculating hydrogen filling rate based on radio wave intensity, etc.)

[0371] If the amount of hydrogen absorbed by the hydrogen storage alloy AM changes, the shape of the hydrogen storage alloy AM and the like will change. Based on this change, the intensity of the radio wave that can pass through and be received by the hydrogen storage alloy AM changes. Therefore, by configuring the information sending unit and the communication unit (receiving device) in a positional relationship sandwiching the hydrogen storage alloy AM, it is possible to obtain information related to the intensity of the radio wave that can pass through and be received by the hydrogen storage alloy AM, and based on the information related to the intensity of the radio wave, it is possible to calculate the amount of hydrogen absorbed by the hydrogen storage alloy AM, that is, the hydrogen filling rate of the hydrogen container containing the hydrogen storage alloy AM.

[0372] The hydrogen container with a higher hydrogen filling rate rh supplies hydrogen to the fuel cell (second DC power generation device 12), and the hydrogen container with a lower hydrogen filling rate rh receives hydrogen supply from the hydrogen generation unit 71, thereby enabling efficient storage and release of hydrogen.

[0373] (Effect of transferring waste heat from the fuel cell to the hydrogen tank)

[0374] The heat obtained by the fuel cell (the second DC power generation device 12) is conducted to the first hydrogen container 73a and the like, so that the hydrogen storage alloy AM can be heated, and hydrogen can be easily released from the hydrogen storage alloy.

[0375] (Effect of conducting waste heat from fuel cells to water heaters, etc.)

[0376] The heat obtained by the fuel cell (the second DC power generation device 12) is conducted to the water heater 72b2 or the like, so that the hydrogen storage alloy AM can be heated, and hydrogen can be easily released from the hydrogen storage alloy AM.

[0377] (Effect of setting a locking mechanism)

[0378] Even when the power supply is interrupted and the lock mechanism (such as the first lock mechanism 74a1) is turned off, the hydrogen container can be prevented from accidentally coming out of the holding mechanism.

[0379] In addition, the hydrogen container can be removed under the condition that both the inlet valve (the first valve B01, etc.) and the outlet valve (the second valve B02, etc.) of the hydrogen container are in the closed state. Therefore, it is possible to prevent the hydrogen container from accidentally detaching from the holding mechanism during the hydrogen filling process or the hydrogen release process.

[0380] In the present embodiment, an example in which the heat conducting portion 90 includes the fan 91 and the guide path 92 has been described.

[0381] However, the structure for conducting the heat generated by the second DC power generation device 12 to the first hydrogen container 73a and the like may be constituted by other devices such as a heat pump.

[0382] In the present embodiment, an example is described in which the hot water from the second water supply device 72 b heats the first hydrogen container 73 a and the like, and the cold water from the second water supply device 72 b cools the first hydrogen container 73 a and the like.

[0383] However, the heating and cooling of the first hydrogen tank 73 a and the like may be performed by other devices such as a heat pump.

[0384] In the present embodiment, the example in which the first hydrogen container 73 a and the like are heated to release hydrogen and the first hydrogen container 73 a and the like are cooled to store hydrogen is described.

[0385] However, it is also possible to release hydrogen by depressurizing the interior of the first hydrogen container 73 a and the like, and to store hydrogen by pressurizing the interior of the first hydrogen container 73 a and the like.

[0386] Several embodiments of the present invention have been described, but the above embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments may be implemented in various other ways, and various omissions, substitutions, and changes may be made without departing from the scope of the invention. The above embodiments and their variations are included in the invention and their equivalents recorded in the claims, as are those included in the scope of the invention and its purport.

[0387] Description of Reference Numerals

[0388] 1. Power supply system

[0389] 10 DC power supply unit

[0390] 111st DC generator

[0391] 12 Second DC generator

[0392] 20AC power supply unit

[0393] 211st AC generator

[0394] 22 Second AC generator

[0395] 30Conversion Department

[0396] 31 1st conversion device

[0397] 32 2nd conversion device

[0398] 33 The third conversion device

[0399] 34 4th conversion device

[0400] 50 Power storage unit

[0401] 51 First power storage device

[0402] 52 Second power storage device

[0403] 53 Third power storage device

[0404] 60 Control Department

[0405] 70 Hydrogen supply unit

[0406] 71 Hydrogen generation unit

[0407] 72 Water Supply Department

[0408] 72a The first water supply device

[0409] 72a1 No.1 water intake section

[0410] 72b Second water supply device

[0411] 72b1 Second water intake section

[0412] 72b2 water heater

[0413] 72b3 Hot water container

[0414] 72b4 cold water container

[0415] 73 Hydrogen Storage Department

[0416] 73a No. 1 Hydrogen Container

[0417] 73b Second hydrogen container

[0418] 73c No. 3 Hydrogen Container

[0419] 74 Holding unit

[0420] 74a First holding device

[0421] 74a1 1st locking mechanism

[0422] 74b Second holding device

[0423] 74b1 Second locking mechanism

[0424] 74c Third holding device

[0425] 74c1 3rd locking mechanism

[0426] 75 Monitoring Department

[0427] 75a No. 1 monitoring device

[0428] 75a1 First information transmission unit

[0429] 75a2 1st Communication Department

[0430] 75b Second monitoring device

[0431] 75b1 Second information transmission unit

[0432] 75b2 2nd Communications Department

[0433] 75c 3rd monitoring device

[0434] 75c1 The third information sending unit

[0435] 75c2 3rd Communication Department

[0436] 76 Buffer container

[0437] 76a Container 1

[0438] 76b Container 2

[0439] 77 High-pressure hydrogen storage bottle

[0440] 78 Pressure reduction adjustment unit

[0441] 78a No. 1 pressure reducing adjustment device

[0442] 78b Second pressure reducing adjustment device

[0443] 79 Gas-Liquid Separator

[0444] 90 heat transfer unit

[0445] 91 Fan

[0446] 92 Guide Road

[0447] 100 load

[0448] AM Hydrogen Storage Alloys

[0449] B01~B26 Valve 01~Valve 26

[0450] P1 Hydrogen Tube

[0451] P2 hot water pipe

[0452] P3 cold water pipe

[0453] Rh hydrogen filling rate

[0454] S01~S10 Switch 01~Switch 10

[0455] thrh hydrogen filling rate threshold

Claims

1. A power supply system comprising: Hydrogen generation unit; a hydrogen storage unit including a first hydrogen container, a second hydrogen container, and a third hydrogen container for storing hydrogen obtained by the hydrogen generating unit; a holding portion having a first holding device for holding the first hydrogen container, a second holding device for holding the second hydrogen container, and a third holding device for holding the third hydrogen container; and A fuel cell that generates electricity based on hydrogen supplied from the hydrogen storage unit, wherein: The first hydrogen container, the second hydrogen container, and the third hydrogen container each hold a hydrogen storage alloy therein and store hydrogen by occluding it. Regarding the hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container that receives the supply of hydrogen from the hydrogen generating unit, while receiving the supply of hydrogen, a valve between the hydrogen generating unit and the third hydrogen container is opened, and a valve between the fuel cell and the third hydrogen container is closed, Regarding the hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container that supplies hydrogen to the fuel cell, during the supply of hydrogen, a valve between the hydrogen generating unit and the hydrogen generating unit is closed, and a valve between the hydrogen generating unit and the fuel cell is opened, Regarding the hydrogen container among the first hydrogen container, the second hydrogen container, and the third hydrogen container that does not receive the supply of hydrogen from the hydrogen generating unit and does not supply hydrogen to the fuel cell, the valve between the hydrogen generating unit and the third hydrogen container is closed, the valve between the third hydrogen container and the fuel cell is closed, and the third hydrogen container is held in a removable state on the holding portion, The hydrogen storage unit has a monitoring unit including a first monitoring device, the first monitoring device having: a first information transmitting unit that emits a radio wave of a first frequency; and a first communication unit that receives the radio wave from the first information transmitting unit, The first information transmitting unit and the first communication unit are arranged in a positional relationship with the hydrogen storage alloy of the first hydrogen container being sandwiched therebetween. The power supply system includes a control unit that calculates a hydrogen filling rate of the first hydrogen tank based on information on at least one of a radio wave intensity and a signal waveform of a radio wave from the first information transmitting unit obtained by the first communication unit.

2. A power supply system comprising: Hydrogen generation unit; a hydrogen storage unit including a first hydrogen container, a second hydrogen container, and a third hydrogen container for storing hydrogen obtained by the hydrogen generating unit; a holding portion having a first holding device for holding the first hydrogen container, a second holding device for holding the second hydrogen container, and a third holding device for holding the third hydrogen container; and A fuel cell that generates electricity based on hydrogen supplied from the hydrogen storage unit, wherein: The first hydrogen container, the second hydrogen container, and the third hydrogen container each hold a hydrogen storage alloy therein and store hydrogen by occluding it. Regarding the hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container that receives the supply of hydrogen from the hydrogen generating unit, while receiving the supply of hydrogen, a valve between the hydrogen generating unit and the third hydrogen container is opened, and a valve between the fuel cell and the third hydrogen container is closed, Regarding the hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container that supplies hydrogen to the fuel cell, during the supply of hydrogen, a valve between the hydrogen generating unit and the hydrogen generating unit is closed, and a valve between the hydrogen generating unit and the fuel cell is opened, Regarding the hydrogen container among the first hydrogen container, the second hydrogen container, and the third hydrogen container that does not receive the supply of hydrogen from the hydrogen generating unit and does not supply hydrogen to the fuel cell, the valve between the hydrogen generating unit and the third hydrogen container is closed, the valve between the third hydrogen container and the fuel cell is closed, and the third hydrogen container is held in a removable state on the holding portion, The hydrogen storage unit has a monitoring unit including a first monitoring device, the first monitoring device having: a first information transmitting unit that emits a radio wave of a first frequency; and a first communication unit that receives the radio wave from the first information transmitting unit, The first information transmitting unit and the first communication unit are arranged in a positional relationship with the hydrogen storage alloy of the first hydrogen container being sandwiched therebetween. The power supply system includes a control unit that, based on information related to at least one of the radio wave intensity and signal waveform of the radio wave from the first information sending unit obtained by the first communication unit, opens a first inlet valve that enables hydrogen supply to the first hydrogen container when the hydrogen filling rate of the first hydrogen container is lower than a hydrogen filling rate threshold, and closes the first inlet valve when the hydrogen filling rate of the first hydrogen container is higher than the hydrogen filling rate threshold.

3. The power supply system according to claim 1 or 2, wherein: The first hydrogen container is made of a resin having radio wave permeability. The first information transmitting unit and the first communication unit are attached to an outer wall of the first hydrogen tank.

4. The power supply system according to claim 1, wherein: The power supply system comprises: a heat conduction unit having a fan for supplying cooling air to the fuel cell, and a guide path for guiding warm air obtained by heating the cooling air by the fuel cell to the first to third hydrogen containers; and A control unit controls the valve of the guide path so that the warm air is supplied to a hydrogen tank among the first hydrogen tank, the second hydrogen tank, and the third hydrogen tank that supplies hydrogen to the fuel cell through the guide path.

5. The power supply system according to claim 1, wherein: The power supply system comprises: a water heater, which heats cold water; a hot water pipe that supplies hot water from the water heater to the first holding device, the second holding device, and the third holding device; as well as The heat conduction unit includes a fan for supplying cooling air to the fuel cell and a guide path for guiding warm air obtained by heating the cooling air by the fuel cell to at least one of the water heater and the hot water pipe.

6. The power supply system according to claim 1, wherein: The control unit calculates the hydrogen filling rate of the first hydrogen container based on information related to the radio wave intensity of the radio wave from the first information sending unit obtained by the first communication unit, and a database representing the relationship between the radio wave intensity, the amount of hydrogen absorbed in the hydrogen storage alloy and the hydrogen filling rate of the hydrogen container recorded in the control unit or the recording device.

7. The power supply system according to claim 2, wherein: Based on the information related to the radio wave intensity of the radio wave from the first information sending unit obtained by the first communication unit, and a database representing the relationship between the radio wave intensity, the amount of hydrogen absorbed in the hydrogen storage alloy and the hydrogen filling rate of the hydrogen container recorded in the control unit or the recording device, the control unit opens the first inlet valve that enables hydrogen to be supplied to the first hydrogen container when the hydrogen filling rate of the first hydrogen container is lower than a hydrogen filling rate threshold, and closes the first inlet valve when the hydrogen filling rate of the first hydrogen container is higher than the hydrogen filling rate threshold.

8. A power supply system comprising: Hydrogen generation unit; a hydrogen storage unit including a first hydrogen container, a second hydrogen container, and a third hydrogen container for storing hydrogen obtained by the hydrogen generating unit; a holding portion having a first holding device for holding the first hydrogen container, a second holding device for holding the second hydrogen container, and a third holding device for holding the third hydrogen container; and A fuel cell that generates electricity based on hydrogen supplied from the hydrogen storage unit, wherein: The first hydrogen container, the second hydrogen container, and the third hydrogen container each hold a hydrogen storage alloy therein and store hydrogen by occluding it. Regarding the hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container that receives the supply of hydrogen from the hydrogen generating unit, while receiving the supply of hydrogen, a valve between the hydrogen generating unit and the third hydrogen container is opened, and a valve between the fuel cell and the third hydrogen container is closed, Regarding the hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container that supplies hydrogen to the fuel cell, during the supply of hydrogen, a valve between the hydrogen generating unit and the hydrogen generating unit is closed, and a valve between the hydrogen generating unit and the fuel cell is opened, Regarding the hydrogen container among the first hydrogen container, the second hydrogen container, and the third hydrogen container that does not receive the supply of hydrogen from the hydrogen generating unit and does not supply hydrogen to the fuel cell, the valve between the hydrogen generating unit and the third hydrogen container is closed, the valve between the third hydrogen container and the fuel cell is closed, and the third hydrogen container is held in a removable state on the holding portion, The hydrogen container among the first hydrogen container, the second hydrogen container and the third hydrogen container that receives the supply of hydrogen from the hydrogen generating unit is held in the holding unit in a state that it cannot be removed while receiving the supply of hydrogen. The first hydrogen container, the second hydrogen container, and the third hydrogen container are hydrogen containers that supply hydrogen to the fuel cell and are held in the holding portion in a state where they cannot be removed during the supply of hydrogen. The first holding device includes a first locking mechanism, wherein the first locking mechanism enables the first hydrogen container to be removed when the first locking mechanism is in an energized state, and disables the first hydrogen container to be removed when the first locking mechanism is in an unenergized state. When both the valve between the hydrogen generating unit and the first hydrogen tank and the valve between the fuel cell and the first hydrogen tank are in a closed state, the first lock mechanism is in the energized state.

9. The power supply system according to claim 1, wherein: The power supply system includes a heat conducting unit that conducts heat generated by the fuel cell to a hydrogen container among the first hydrogen container, the second hydrogen container, and the third hydrogen container that supplies hydrogen to the fuel cell.

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