CN102569854B - Portable power supply system of proton exchange membrane fuel cell (PEMFC) - Google Patents
Portable power supply system of proton exchange membrane fuel cell (PEMFC)Download PDFInfo
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- CN102569854B CN102569854BCN201210020921.5ACN201210020921ACN102569854BCN 102569854 BCN102569854 BCN 102569854BCN 201210020921 ACN201210020921 ACN 201210020921ACN 102569854 BCN102569854 BCN 102569854B
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- 239000001257hydrogenSubstances0.000claimsabstractdescription38
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- 238000001816coolingMethods0.000claimsdescription16
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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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Abstract
Description
Technical field
The present invention relates to fuel cell technology field, relate in particular to a kind of PEMFC fuel cell power system.
Background technology
Fuel cell is a kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT) of efficient, energy-saving and environmental protection, is the device that the chemical energy in the fuel of storage and oxidant is converted into electric energy, has energy conversion efficiency high, and noise is low, pollute little, not to be subject to Carnot cycle restriction feature.In various fuel cells, Proton Exchange Membrane Fuel Cells (PEMFC) is taking hydrogen as fuel, and using oxygen or air as oxidant, product is only water, free from environmental pollution, and noise is little, and power density is high, and start-up time is short, has vast potential for future development.But existing Proton Exchange Membrane Fuel Cells has, output voltage is unstable, the shortcoming of job insecurity.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of portable PEMFC fuel cell power system, has the feature of output voltage stabilization, working stability.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of portable PEMFC fuel cell power system, it is characterized in that described power-supply system comprises hydrogen container, intake valve, PEMFC fuel cell pack, hydrogen circulating pump, steam-water separator, vent valve, power governor and power-supply system controller, described PEMFC fuel cell pack comprises that the PEMFC fuel cell reaction being composed in series by multiple individual fuel cell piles, cooling fan, can gather PEMFC fuel cell reaction heap electric current, the signal acquisition circuit of voltage and temperature and working fan, described hydrogen container connects the hydrogen inlet of described PEMFC fuel cell reaction heap through intake valve by pipeline, the gas outlet of described PEMFC fuel cell reaction heap is connected with described steam-water separator through hydrogen circulating pump by pipeline, the hydrogen gas outlet of described steam-water separator is connected with the hydrogen inlet of described PEMFC fuel cell reaction heap by pipeline, the exhaust outlet of described steam-water separator is connected with described vent valve by pipeline, described cooling fan is connected with the radiation air air inlet of described PEMFC fuel cell reaction heap, and described working fan is connected with the oxidant air inlet of described PEMFC fuel cell reaction heap, output one tunnel of described signal acquisition circuit is connected with the input of described power-supply system controller, and another road of the output of described signal acquisition circuit is connected with the input of described power governor, the output of described power-supply system controller is connected with the control end of described intake valve, cooling fan, working fan, hydrogen circulating pump and vent valve, and described power-supply system controller is connected with described power governor is two-way.
Described power-supply system also comprises pressure-reducing valve, and described pressure-reducing valve is fixedly connected on the pipeline between described hydrogen container and described intake valve.
Described power-supply system also comprises storage battery, and described storage battery is connected with described power governor is two-way.
Described power-supply system controller comprises single-chip minimum system, can control indicator light, buzzer, intake valve, vent valve, system powers on, the output control circuit of load switch, can receive the input control circuit of start button signal and shutdown button signal, can control cooling fan, working fan, the D/A translation circuit of hydrogen circulating pump and DC/DC conversion, can receive fuel cell current, fuel battery voltage, fuel battery temperature, battery current, DC bus-bar voltage, the A/D translation circuit of ambient temperature and fuel cell monolithic voltage, EEPROM, RS232 interface circuit and jtag interface circuit, described single-chip minimum system comprises power circuit, clock circuit and MCU, described output control circuit is connected with the output of described MCU with described D/A translation circuit, described input control circuit is connected with the input of described A/D translation circuit, and described EEPROM, RS232 interface circuit and jtag interface circuit are connected with described MUC is two-way.
The model of described MCU is: ATMAGE16.
Described signal acquisition circuit comprises current sensor, voltage sensor and temperature sensor.
The model of described power governor is: CKN150-12S24.
Described intake valve and vent valve are electromagnetically operated valve.
Beneficial effect of the present invention is as follows: the power-supply system controller in (1) described power-supply system and power governor composition power control system.Described power control system can Real-Time Monitoring described in voltage, the electric current of output voltage, output current and storage battery of power-supply system, output voltage can be controlled at always to a maintenance level, and there is the faults such as input undervoltage, output overvoltage, output short-circuit during in system, report to the police and open circuit protection, improved the stability of described power-supply system work; (2) described power control system can drive described intake valve and vent valve according to the control strategy control setting, and makes fuel supply and the exhaust emissions of described power-supply system reliable and stable; (3) described power control system, by the temperature of the described power-supply system of monitoring, is controlled the cooling fan of described fuel cell pack, makes the temperature of fuel cell pack maintain a lower level always; (4) described power control system can, according to the control strategy control hydrogen circulating pump and the working fan that set, when the required oxidant of described power-supply system is reliably provided, have been realized the control to described power-supply system humidity indirectly; (5) described power control system can detect the variation of gas pressure in hydrogen gas tank in real time, and prompting changing hydrogen gas tank in the time of insufficient pressure, makes described power-supply system that the lasting electric energy that provides can be provided.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is the structured flowchart of power-supply system controller in the present invention;
Wherein 1, pressure-reducing valve 2,intake valve 3, signal acquisition circuit 4,hydrogen circulating pump 5, steam-water separator 6,vent valve 7,cooling fan 8, working fan, 9, output control circuit 10, input control circuit 11, D/A translation circuit 12, A/D translation circuit.
Embodiment
As shown in Figure 1-2, a kind of portable PEMFC fuel cell power system, described power-supply system comprises hydrogen container, pressure-reducing valve 1, intake valve 2, PEMFC fuel cell pack, hydrogen circulating pump 4, steam-water separator 5, vent valve 6, storage battery, power governor and power-supply system controller, and the model of described power governor is: CKN150-12S24; Described intake valve 2 and vent valve 6 are electromagnetically operated valve.
Described PEMFC fuel cell pack comprises PEMFC fuel cell reaction heap, thecooling fan 7 being composed in series by multiple individual fuel cell,signal acquisition circuit 3 and the workingfan 8 that can gather PEMFC fuel cell reaction heap electric current, voltage and temperature.Described hydrogen container connects the hydrogen inlet of described PEMFC fuel cell reaction heap successively through pressure-reducing valve 1, intake valve 2 by pipeline.The gas outlet of described PEMFC fuel cell reaction heap is connected with described steam-water separator 5 through hydrogen circulating pump 4 by pipeline.The hydrogen gas outlet of described steam-water separator 5 is connected with the hydrogen inlet of described PEMFC fuel cell reaction heap by pipeline, and the exhaust outlet of described steam-water separator 5 is connected with described vent valve 6 by pipeline.Describedcooling fan 7 is connected with the radiation air air inlet of described PEMFC fuel cell reaction heap, and described workingfan 8 is connected with the oxidant air inlet of described PEMFC fuel cell reaction heap.Output one tunnel of describedsignal acquisition circuit 3 is connected with the input of described power-supply system controller, and another road of the output of describedsignal acquisition circuit 3 is connected with the input of described power governor.The output of described power-supply system controller is connected with the control end of described intake valve 2,cooling fan 7, workingfan 8, hydrogen circulating pump 4 and vent valve 6, described power-supply system controller is connected with described power governor is two-way, and described storage battery is connected with described power governor is two-way.
Described power-supply system controller comprises single-chip minimum system, can control indicator light, buzzer, intake valve 2, vent valve 6, system powers on, the output control circuit 9 of load switch, can receive the input control circuit 10 of start button signal and shutdown button signal, can controlcooling fan 7, workingfan 8, the D/A translation circuit 11 of hydrogen circulating pump 4 and DC/DC conversion, can receive fuel cell current, fuel battery voltage, fuel battery temperature, battery current, DC bus-bar voltage, the A/D translation circuit 12 of ambient temperature and fuel cell monolithic voltage, EEPROM, RS232 interface circuit and jtag interface circuit.Described single-chip minimum system comprises power circuit, clock circuit and MCU, and the model of MCU is: ATMAGE16.Described output control circuit 9 is connected with the output of described MCU with described D/A translation circuit 11, described input control circuit 10 is connected with the input of described A/D translation circuit 12, and described EEPROM, RS232 interface circuit and jtag interface circuit are connected with described MUC is two-way.Described signal acquisition circuit comprises current sensor, voltage sensor and temperature sensor.Described power-supply system controller also can use other power-supply system controller, as long as can realize necessary function.
Described power-supply system is controlled the working temperature of fuel cell pack inside from the heat exchange structure design of each thermal source and fuel cell stack temperature closed-loop control two aspects.Fuel cell stack temperature closed-loop control adopts Fuzzy increment PID controller to realize, the temperature of described power-supply system is controlled between 50-80 ° of C always, hydrogen and airborne oxygen can fully be reacted, increased generating efficiency, improved the stability of described power-supply system.
Described power-supply system adopts the mode of hydrogen circulation to realize hydrogen humidification in fuel cell reaction heap.When power-supply system work, described power control system is according to different working conditions, by regulating workingfan 8, circulating pump 4,cooling fan 7 to make described power-supply system to partially wet or partially dry direction operation, indirectly control the humidity of fuel cell pack inside, make the humidity in described power-supply system suitable, output voltage stabilization.
Described power-supply system is by self-control pressure-reducing valve 1, realize the stable of hydrogen feed system pressure, air pressure adopts normal pressure to supply with, air velocity is realized by the terminal voltage that regulates workingfan 8, hydrogen in described fuel cell reaction heap and volume ratio, flow velocity and the pressure of air are maintained in certain reasonably scope, improve the extent of reaction of hydrogen and airborne oxidant, improved the generating efficiency of described power-supply system.
For the discharge of tail gas and steam, described power-supply system is taked to determine watt-hour and is intermittently controlled the mode of vent valve 6 and realize, reduce the impact on described fuel cell reaction heap interior humidity of steam and tail gas, improved the job stability of generating efficiency and described power-supply system.
In the process of energy management, effectively complete energy management and the control of described fuel cell pack and described storage battery by detecting the size of direct voltage of described power-supply system and described storage battery.If the direct voltage of described power-supply system exceedes the voltage reference value of storage battery, may system non-loaded or system load is smaller, storage battery be in highly charged state simultaneously, and at this moment described power-supply system enters storage battery pressure limiting pattern (BVL).In this pattern, the output current of described power-supply system and the charging current of storage battery all should be less than its current limit.If the direct voltage of described power-supply system is lower than the reference voltage of storage battery, load that may be corresponding is large or load is less, storage battery is in low state-of-charge simultaneously, at this moment, described power-supply system is determined and is entered fuel cell constant current mode (FCCL) or storage battery constant current mode (BCL) according to loading condition.If bearing power lower than the peak power output of described fuel cell pack, at this moment should be adjusted the charging current of storage battery with protection storage battery.If duty ratio is larger, the electric current of described power-supply system will increase to its limiting value, enter fuel cell pack constant current mode (FCCL).In this case, storage battery do not charge or charging current very little.If the direct voltage of described storage battery, lower than the minimum voltage value of default storage battery, cuts off load, protection storage battery, prevents storage battery over-discharge.
Described power-supply system has the following advantages: the power-supply system controller in (1) described power-supply system and power governor composition power control system.Described power control system can Real-Time Monitoring described in voltage, the electric current of output voltage, output current and storage battery of power-supply system; output voltage can be controlled at always to a maintenance level; and there is the faults such as input undervoltage, output overvoltage, output short-circuit during in system; report to the police and open circuit protection, improved the stability of described power-supply system work.(2) described power control system can drive described intake valve and vent valve according to the control strategy control setting, and makes fuel supply and the exhaust emissions of described power-supply system reliable and stable; (3) described power control system, by the temperature of the described power-supply system of monitoring, is controlled the cooling fan of described fuel cell pack, makes the temperature of fuel cell pack maintain a lower level always; (4) described power control system can, according to the control strategy control hydrogen circulating pump and the working fan that set, when the required oxidant of described power-supply system is reliably provided, have been realized the control to described power-supply system humidity indirectly; (5) described power control system can detect the variation of gas pressure in hydrogen gas tank in real time, and prompting changing hydrogen gas tank in the time of insufficient pressure, makes described power-supply system that the lasting electric energy that provides can be provided.Comprehensive above some, described power-supply system has output voltage stabilization, feature that job stability is strong.
Claims (6)
1. a portable PEMFC fuel cell power system, it is characterized in that described power-supply system comprises hydrogen container, intake valve (2), PEMFC fuel cell pack, hydrogen circulating pump (4), steam-water separator (5), vent valve (6), power governor and power-supply system controller, described PEMFC fuel cell pack comprises that the PEMFC fuel cell reaction being composed in series by multiple individual fuel cell piles, cooling fan (7), can gather PEMFC fuel cell reaction heap electric current, the signal acquisition circuit (3) of voltage and temperature and working fan (8), described hydrogen container connects the hydrogen inlet of described PEMFC fuel cell reaction heap through intake valve (2) by pipeline, the gas outlet of described PEMFC fuel cell reaction heap is connected with described steam-water separator (5) through hydrogen circulating pump (4) by pipeline, the hydrogen gas outlet of described steam-water separator (5) is connected with the hydrogen inlet of described PEMFC fuel cell reaction heap by pipeline, the exhaust outlet of described steam-water separator (5) is connected with described vent valve (6) by pipeline, described cooling fan (7) is connected with the radiation air air inlet of described PEMFC fuel cell reaction heap, and described working fan (8) is connected with the oxidant air inlet of described PEMFC fuel cell reaction heap, output one tunnel of described signal acquisition circuit (3) is connected with the input of described power-supply system controller, and another road of output of described signal acquisition circuit (3) is connected with the input of described power governor, the output of described power-supply system controller and described intake valve (2), cooling fan (7), working fan (8), hydrogen circulating pump (4) is connected with the control end of vent valve (6), described power-supply system controller is connected with described power governor is two-way, described power-supply system also comprises storage battery, described storage battery is connected with described power governor is two-way, described power-supply system controller comprises single-chip minimum system, can control indicator light, buzzer, intake valve (2), vent valve (6), system powers on, the output control circuit (9) of load switch, can receive start button signal and the input control circuit (10) of the button signal of shutting down, and can control cooling fan (7), working fan (8), the D/A translation circuit (11) of hydrogen circulating pump (4) and DC/DC conversion, can receive fuel cell current, fuel battery voltage, fuel battery temperature, battery current, DC bus-bar voltage, the A/D translation circuit (12) of ambient temperature and fuel cell monolithic voltage, EEPROM, RS232 interface circuit and jtag interface circuit, described single-chip minimum system comprises power circuit, clock circuit and MCU, described output control circuit (9) is connected with the output of described MCU with described D/A translation circuit (11), described input control circuit (10) is connected with the input of described A/D translation circuit (12), and described EEPROM, RS232 interface circuit and jtag interface circuit are connected with described MCU is two-way.
2. the portable PEMFC fuel cell power system of one according to claim 1, is characterized in that described power-supply system also comprises pressure-reducing valve (1), and described pressure-reducing valve (1) is fixedly connected on the pipeline between described hydrogen container and described intake valve (2).
3. the portable PEMFC fuel cell power system of one according to claim 1, is characterized in that the model of described MCU is: ATMAGE16.
4. the portable PEMFC fuel cell power system of one according to claim 1, is characterized in that described signal acquisition circuit (3) comprises current sensor, voltage sensor and temperature sensor.
5. the portable PEMFC fuel cell power system of one according to claim 1, is characterized in that the model of described power governor is: CKN150-12S24.
6. the portable PEMFC fuel cell power system of one according to claim 1, is characterized in that described intake valve (2) and vent valve (6) are electromagnetically operated valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210020921.5ACN102569854B (en) | 2012-01-30 | 2012-01-30 | Portable power supply system of proton exchange membrane fuel cell (PEMFC) |
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| CN201210020921.5ACN102569854B (en) | 2012-01-30 | 2012-01-30 | Portable power supply system of proton exchange membrane fuel cell (PEMFC) |
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| CN102569854Btrue CN102569854B (en) | 2014-07-09 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US9048475B2 (en)* | 2013-02-05 | 2015-06-02 | GM Global Technology Operations LLC | Method for the detection of fuel cell system short circuits |
| CN103579651B (en)* | 2013-11-01 | 2016-06-22 | 双登集团股份有限公司 | Portable proton exchange film fuel battery power-supply system |
| CN105186016B (en)* | 2015-07-21 | 2017-12-05 | 同济大学 | A kind of automatically controlled spray hydrogen pressure adjusting means of fuel cell system |
| US10199669B2 (en) | 2016-01-25 | 2019-02-05 | Micrsoft Technology Licensing, LLC | Power modulation for fuel cell powered datacenters |
| CN105730256A (en)* | 2016-02-17 | 2016-07-06 | 陆玉正 | Fuel cell electric vehicle power device with super-capacitor |
| CN106159299A (en)* | 2016-08-09 | 2016-11-23 | 江苏国泽光电科技有限公司 | A kind of method for controlling power supply of fuel cell system |
| CN106992309A (en)* | 2017-06-02 | 2017-07-28 | 苏州中氢能源科技有限公司 | The hydrogen gas feed system of fuel cell pack electricity generation system |
| CN108832159B (en)* | 2018-06-26 | 2019-09-24 | 德州新动能铁塔发电有限公司 | A kind of Fuel Cell Control System and control method |
| CN109245228A (en)* | 2018-10-19 | 2019-01-18 | 吕大明 | Large capacity hydrogen-based mobile power source |
| CN109808550A (en)* | 2019-03-15 | 2019-05-28 | 常州港华燃气有限公司 | A kind of power control system of hydrogen fuel cell model car |
| CN110053520A (en)* | 2019-05-27 | 2019-07-26 | 上海楞次新能源汽车科技有限公司 | The fuel cell control device of hydrogen fuel cell dynamical system |
| CN111933973B (en)* | 2020-07-17 | 2022-06-17 | 华中科技大学鄂州工业技术研究院 | A Proton Exchange Membrane Fuel Cell Hybrid Energy Management System |
| CN117996111B (en)* | 2024-04-03 | 2024-06-14 | 浙江大学 | A cathode open PEMFC hybrid energy system and control method |
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- 2012-01-30CNCN201210020921.5Apatent/CN102569854B/ennot_activeExpired - Fee Related
Patent Citations (3)
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