CN110768352A - Integrated self-charging storage battery system with hydrogen fuel cell as charger - Google Patents
Integrated self-charging storage battery system with hydrogen fuel cell as charger Download PDFInfo
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- CN110768352A CN110768352A CN201911238724.9A CN201911238724A CN110768352A CN 110768352 A CN110768352 A CN 110768352A CN 201911238724 A CN201911238724 A CN 201911238724A CN 110768352 A CN110768352 A CN 110768352A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/32—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from a charging set comprising a non-electric prime mover rotating at constant speed
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04858—Electric variables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to an integrated self-charging storage battery system with a hydrogen fuel cell as a charger, which comprises a hydrogen supply device, a pile management system, a display, a pile, a storage battery charger and a storage battery, wherein the hydrogen supply device provides a hydrogen source for the whole system; the invention realizes the purpose of high-efficiency cleaning and no pollution, has large instantaneous power, greatly reduces the system cost and prolongs the service life of the galvanic pile.
Description
[ technical field ]
The invention relates to the technical field of hydrogen fuel cells, in particular to an integrated self-charging storage battery system with a hydrogen fuel cell as a charger.
[ background art ]
The hydrogen fuel cell has the advantages of no pollution, low noise, high efficiency and the like, so the application range of the hydrogen fuel cell is wider and wider. A hydrogen fuel cell system generally includes a hydrogen fuel cell stack (simply referred to as a stack), an auxiliary battery, a DC/DC converter, and a stack management system. The electric pile is the core of a hydrogen fuel cell system, and enables hydrogen and oxygen in the air to generate electric energy through electrochemical reaction and simultaneously generate water to be discharged; the auxiliary battery provides an initial power supply for the start of the stack management system; the DC/DC converter plays roles of voltage conversion and voltage stabilization; the function of the pile management system is to measure the reaction temperature of the pile, the temperature, the flow and the air pressure of air and hydrogen, the temperature and the flow of cooling liquid, control the rotating speed of an air compressor, an inlet and outlet electromagnetic valve of the hydrogen and a cooling liquid pump, and ensure the normal operation of the pile.
However, in the present stage, the hydrogen fuel cell has many disadvantages compared with the traditional lead-acid battery, lithium battery and other storage batteries, and the main disadvantages are low instantaneous power and high cost. The high cost makes the application of the high-power-consumption energy-saving device limited in the fields of price-sensitive automobiles, industry, civil use and the like, and the low instantaneous power makes the high-power-consumption energy-saving device not superior in most occasions. In order to meet the instantaneous power of the load, the rated power of the hydrogen fuel cell must be increased to be close to the instantaneous power of the load, which further increases the cost and causes waste of resources. Moreover, in use, if the load power is often changed greatly, the service life of the galvanic pile is also reduced.
[ summary of the invention ]
The invention aims to solve the defects and provide an integrated self-charging storage battery system with a hydrogen fuel cell as a charger, which not only greatly reduces the system cost and realizes the purposes of high efficiency, cleanness and no pollution, but also prolongs the service life of a galvanic pile and avoids the defect of low instantaneous power of the galvanic pile.
In order to realize the purpose, an integrated self-charging storage battery system with a hydrogen fuel cell as a charger is designed, which comprises a hydrogen supply device 1, a stack management system 2, a display 3, a stack 4, a storage battery charger 5 and a storage battery 6, wherein the hydrogen supply device 1 provides a hydrogen source for the whole self-charging storage battery system, the gas outlet end of the hydrogen supply device 1 is connected with the stack management system 2, the stack management system 2 is a control center of the whole system, the stack management system 2 is respectively connected with the stack 4, the storage battery charger 5, the display 3 and the storage battery 6, the input end of the storage battery 6 is connected with the storage battery charger 5, the output end of the storage battery 6 is connected with the stack management system 2, the input end of the storage battery charger 5 is connected with the stack 4, the stack 4 is an energy conversion center of the whole system, and the stack 4 converts the chemical energy of the hydrogen into electric energy through electrochemical reaction, the electric energy that battery charger 5 sent out galvanic pile 4 carries out voltage transformation to for battery 6 charges, battery 6 provides the power for galvanic pile management system 2, galvanic pile management system 2 is used for controlling battery charger 5's operating condition and the content of display 3 and control hydrogen and air and carry out the supply in order to galvanic pile 4, display 3 is used for showing battery 6's electric quantity, the hydrogen surplus of hydrogen supply unit 1 and entire system's operating condition and malfunction alerting.
Further, the hydrogen supply device 1 is a solid hydrogen storage tank or a compressed hydrogen cylinder.
Further, the cell stack management system 2 monitors the electric quantity of the storage battery 6 in real time, when the monitored electric quantity is lower than a set value, the cell stack 4 and the storage battery charger 5 are automatically started to charge the storage battery 6, and when the storage battery 6 is monitored to be fully charged, the cell stack 4 and the storage battery charger 5 are automatically stopped.
Furthermore, the electric pile management system 2 is composed of a micro control unit chip MCU, a pipeline system, a signal controller and a sensor, the MCU chip is respectively connected with the pipeline system, the signal controller and the sensor, the MCU chip MCU contains a control logic program and is used for monitoring and sending out control instructions, the pipeline system is connected with the galvanic pile 4, the signal controller is respectively and electrically connected with the storage battery charger 5 and the display 3, the sensors are respectively and electrically connected with the storage battery 6 and the hydrogen supply device 1, the pipeline system enables hydrogen and air to supply the electric pile 4 orderly and controls the electric pile 4 to dissipate heat, the signal controller is used for controlling the working state of the storage battery charger 5 and controlling the display content of the display 3, the sensor is used for measuring the electric quantity of the storage battery 6 and measuring the hydrogen gas surplus of the hydrogen supply device 1.
Further, the pipeline system comprises a conduit, an electromagnetic valve and a pump, and the pipeline system is used for controlling hydrogen, air and a water path, so that the hydrogen and the air can be supplied to the galvanic pile 4 in order, and further the heat dissipation of the galvanic pile 4 is controlled through the water path.
Further, the output end of the storage battery 6 is connected with an external load 7, and the storage battery 6 supplies electric energy to the external load 7.
Compared with the prior art, the invention has the following advantages:
(1) compared with the traditional hydrogen fuel cell system, under the condition of the same output power, the power of the galvanic pile required by the invention is only 1/8-1/5 of the traditional scheme, although the capacity of the required storage battery is increased, the cost of the galvanic pile and the auxiliary equipment in the whole system is far higher than that of the storage battery, so the system cost is greatly reduced;
(2) the invention has large instantaneous power, and because the invention is actually connected with the load by the storage battery, the invention fully utilizes the advantage of large instantaneous power and avoids the defect of low instantaneous power of the galvanic pile;
(3) the invention does not need to charge the storage battery from the outside, and the pile management system can intelligently control the pile to automatically charge the storage battery according to the electric quantity of the storage battery, automatically stop after full charge, does not need human participation and is convenient to use;
(4) the storage battery is only a temporary buffer carrier of energy, and all the electric energy output is actually from the electrochemical reaction of the galvanic pile, so that the aims of high efficiency, cleanness and no pollution are fulfilled;
(5) the output power of the storage battery charger is very stable, so that the output power of the galvanic pile is also very stable, the output power is designed to the optimal working point of the galvanic pile, and the service life of the galvanic pile can be greatly prolonged;
to sum up: the invention fully utilizes the advantage of large instantaneous power of the storage battery, utilizes the advantage of high efficiency and cleanness of the hydrogen fuel cell, and exerts respective performances to the maximum extent; in addition, the invention has great advantages in the occasions with low use frequency, such as power-assisted bicycles, electric motorcycles, electric automobiles, unmanned aerial vehicles, emergency power supplies and the like, and is worthy of popularization and application.
[ description of the drawings ]
FIG. 1 is a functional block diagram of the present invention;
in the figure: 1. the hydrogen supply device 2, the pile management system 3, the display 4, the pile 5, the storage battery charger 6, the storage battery 7 and the load.
[ detailed description of the invention ]
The invention is further described below with reference to the accompanying drawings:
as shown in the attached figure 1, the invention provides an integrated self-charging storage battery system with a hydrogen fuel cell as a charger, which comprises a hydrogen supply device 1, a pile management system 2, a display 3, a pile 4, a storage battery charger 5 and a storage battery 6, wherein the hydrogen supply device 1 provides a hydrogen source for the whole self-charging storage battery system, the air outlet end of the hydrogen supply device 1 is connected with the pile management system 2, the pile management system 2 is a control center of the whole system, the pile management system 2 is respectively connected with the pile 4, the storage battery charger 5, the display 3 and the storage battery 6, the input end of the storage battery 6 is connected with the storage battery charger 5, the output end of the storage battery 6 is respectively connected with the pile management system 2 and an external load 7, the input end of the storage battery charger 5 is connected with the pile 4, the pile 4 is an energy conversion center of the whole system, the pile 4 converts the chemical energy of the hydrogen into electric, the storage battery charger 5 converts the voltage of the electric energy generated by the electric pile 4 and charges the storage battery 6, the storage battery 6 provides a power supply for the electric pile management system 2 and provides electric energy for an external load 7, the electric pile management system 2 is used for controlling the working state of the storage battery charger 5 and the display content of the display 3 and controlling hydrogen and air to supply the electric pile 4 in order, and the display 3 is used for displaying the electric quantity of the storage battery 6, the hydrogen surplus of the hydrogen supply device 1 and the working state and the fault alarm of the whole system.
Wherein, the pile management system 2 is composed of a micro control unit chip MCU, a pipeline system, a signal controller and a sensor, the micro control unit chip MCU is respectively connected with the pipeline system, the signal controller and the sensor, the micro control unit chip MCU contains a control logic program and is used for monitoring and sending out a control instruction, the pipeline system is connected with the pile 4, the signal controller is respectively and electrically connected with a storage battery charger 5 and a display 3, the sensor is respectively and electrically connected with a storage battery 6 and a hydrogen supply device 1, the pipeline system comprises a conduit, an electromagnetic valve and a pump, the pipeline system is used for controlling hydrogen, air and a water path so as to ensure that the hydrogen and the air are orderly supplied to the pile 4, and then the water path is used for controlling the heat dissipation of the pile 4, the signal controller is used for controlling the working state of the storage battery charger 5 and controlling the display content of the display 3, and the sensor is used for measuring the electric quantity of the storage battery 6 and measuring the hydrogen residual quantity of the hydrogen supply device 1.
A hydrogen supply device is used for supplying hydrogen source to the whole system, which can be a solid hydrogen storage tank, a compressed hydrogen cylinder or other devices capable of supplying hydrogen, a pile management system is a control center of the whole system and comprises an ① micro-control unit chip MCU, a ② pipeline system, a 3526 signal controller, a ④ sensor, a power supply device and a power supply device, wherein the MCU comprises a control logic program and is a control core, all monitoring and control instructions are sent out by the MCU, the pipeline system is used for controlling hydrogen, air and water paths and comprises a conduit, an electromagnetic valve, a pump and the like, the conduit system is used for orderly supplying hydrogen and air to the pile and controlling the heat dissipation of the pile, the ③ signal controller is used for sending signals to control the running states of other devices, such as controlling the working state of a battery charger and the display content of a display, the ④ sensor is used for measuring the working states of each device, such as measuring the electric quantity of the storage battery and the hydrogen surplus of the hydrogen supply device, the display device displays the current electric quantity of the storage battery, the hydrogen surplus of the pile, the hydrogen supply device, the power supply device, and the storage battery is used for supplying power supply to the.
The working principle of the self-charging storage battery system is as follows: compared with an auxiliary battery in the traditional hydrogen fuel cell system, the storage battery capacity of the system is larger, and the power supply capacity of the system can realize independent external power supply when the electric pile does not work. When the load uses electricity, the electric energy stored in the storage battery in the system is consumed, so that the load can be used without being influenced by the working state of the galvanic pile in the system as long as the storage battery has electricity.
The working state of the fuel cell in the system is not influenced by the use state of the load, but is automatically and intelligently judged and independently operated by the system. The method comprises the following steps: the pile management system monitors the electric quantity of the storage battery in real time, when the electric quantity is lower than a set value, the pile and the storage battery charger are automatically started to charge the storage battery, and when the storage battery is fully charged, the pile and the storage battery charger are automatically stopped. Meanwhile, the electric pile management system displays the current electric quantity of the storage battery through the display, so that a user can know the current battery state conveniently; in addition, the pile management system displays the hydrogen surplus of the current hydrogen supply device through the display, so that a user can conveniently replace the hydrogen supply device or add hydrogen according to the requirement; the display can also display the fault alarm condition of the current system working state machine.
To verify this example, a 120W battery system was made for a moped. The implementation of this example is the same as the summary, and only the detailed parameters are described here.
The net output power of the galvanic pile is 21W, the maximum output current is 0.5A after passing through a storage battery charger, and the maximum output voltage is 42V; the storage battery uses 36V/3 AH; the display comprises a small dot matrix LCD screen and a fault indicator light. The LCD screen displays three items of content: (1) displaying the electric quantity of the storage battery by giving a margin percentage (0-100%) and giving a reference driving mileage; (2) displaying the hydrogen gas allowance of the current hydrogen supply device by giving allowance percentage (0-100%) and giving reference remaining service time; (3) and displaying the current running state or the fault state.
The present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents and are included in the scope of the present invention.
Claims (6)
1. An integrated self-charging battery system with a hydrogen fuel cell as a charger, characterized in that: the system comprises a hydrogen supply device (1), a pile management system (2), a display (3), a pile (4), a storage battery charger (5) and a storage battery (6), wherein the hydrogen supply device (1) provides a hydrogen source for the whole self-charging storage battery system, the air outlet end of the hydrogen supply device (1) is connected with the pile management system (2), the pile management system (2) is a control center of the whole system, the pile management system (2) is respectively connected with the pile (4), the storage battery charger (5), the display (3) and the storage battery (6), the input end of the storage battery (6) is connected with the storage battery charger (5), the output end of the storage battery (6) is connected with the pile management system (2), the input end of the storage battery charger (5) is connected with the pile (4), and the pile (4) is an energy conversion center of the whole system, the utility model discloses a hydrogen storage battery, including galvanic pile (4), battery charger (5), display management system (2), galvanic pile management system (2), display unit, hydrogen supply device (1), galvanic pile (4) are the chemical energy conversion of hydrogen through electrochemical reaction to the electric energy, battery charger (5) carries out voltage transformation with the electric energy that galvanic pile (4) sent to for battery (6) charge, battery (6) provide the power for galvanic pile management system (2), galvanic pile management system (2) are used for controlling the operating condition of battery charger (5) and the display content of display (3) and control hydrogen and air and carry out the orderly supply to galvanic pile (4), display (3) are used for showing the electric quantity of battery (6), the hydrogen surplus of hydrogen supply device (1) and the operating condition and the malfunction alerting of entire system.
2. The integrated self-charging battery system of a hydrogen fuel cell as a charger according to claim 1, wherein: the hydrogen supply device (1) is a solid hydrogen storage tank or a compressed hydrogen cylinder.
3. The integrated self-charging battery system of a hydrogen fuel cell as a charger according to claim 1 or 2, characterized in that: the electric pile management system (2) monitors the electric quantity of the storage battery (6) in real time, when the monitored electric quantity is lower than a set value, the electric pile (4) and the storage battery charger (5) are automatically started to charge the storage battery (6), and when the storage battery (6) is monitored to be fully charged, the electric pile (4) and the storage battery charger (5) are automatically stopped.
4. The integrated self-charging battery system of a hydrogen fuel cell as a charger according to claim 1 or 2, characterized in that: the electric pile management system (2) is composed of a micro control unit chip MCU, a pipeline system, a signal controller and a sensor, the MCU chip is respectively connected with the pipeline system, the signal controller and the sensor, the MCU chip MCU contains a control logic program and is used for monitoring and sending out control instructions, the pipeline system is connected with the galvanic pile (4), the signal controller is respectively and electrically connected with the storage battery charger (5) and the display (3), the sensors are respectively and electrically connected with the storage battery (6) and the hydrogen supply device (1), the pipeline system enables hydrogen and air to supply the galvanic pile (4) in order and controls the galvanic pile (4) to dissipate heat, the signal controller is used for controlling the working state of the storage battery charger (5) and controlling the display content of the display (3), the sensor is used for measuring the electric quantity of the storage battery (6) and measuring the hydrogen gas surplus of the hydrogen supply device (1).
5. The integrated self-charging battery system of a hydrogen fuel cell as a charger according to claim 4, wherein: the pipeline system comprises a guide pipe, an electromagnetic valve and a pump, and is used for controlling hydrogen, air and a water path so that the hydrogen and the air can be supplied to the galvanic pile (4) in order, and then the heat dissipation of the galvanic pile (4) is controlled through the water path.
6. The integrated self-charging battery system of a hydrogen fuel cell as a charger according to claim 5, wherein: the output end of the storage battery (6) is connected with an external load (7), and the storage battery (6) provides electric energy for the external load (7).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111370738A (en) * | 2020-03-16 | 2020-07-03 | 中国兵器装备集团自动化研究所 | Self-adaptive load control system and method for fuel cell power generation system |
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