CN113921870A - Thermal protection control method, system, medium and equipment for fuel cell system - Google Patents
Thermal protection control method, system, medium and equipment for fuel cell system Download PDFInfo
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- CN113921870A CN113921870A CN202111120957.6A CN202111120957A CN113921870A CN 113921870 A CN113921870 A CN 113921870A CN 202111120957 A CN202111120957 A CN 202111120957A CN 113921870 A CN113921870 A CN 113921870A
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- 239000000446 fuel Substances 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000017525 heat dissipation Effects 0.000 claims abstract description 47
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 238000004590 computer program Methods 0.000 claims description 10
- 238000012360 testing method Methods 0.000 claims description 6
- 230000007613 environmental effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002826 coolant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000110 cooling liquid Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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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
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0432—Temperature; Ambient temperature
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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
- H01M8/04925—Power, energy, capacity or load
- H01M8/0494—Power, energy, capacity or load of fuel cell stacks
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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
- H01M8/04992—Processes for controlling fuel cells or fuel cell systems characterised by the implementation of mathematical or computational algorithms, e.g. feedback control loops, fuzzy logic, neural networks or artificial intelligence
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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 Kinetics & Catalysis (AREA)
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- Sustainable Energy (AREA)
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- Health & Medical Sciences (AREA)
- Automation & Control Theory (AREA)
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- Fuel Cell (AREA)
Abstract
The invention relates to the technical field of fuel cells, in particular to a thermal protection control method, a system, a medium and equipment of a fuel cell system; the method comprises the steps of collecting current operation state parameters of the fuel cell system, wherein the operation state parameters comprise ambient temperature t0(ii) a Step two, obtaining the maximum heat dissipation Q according to the operation state parametersmax(ii) a Step three, according to the heat dissipation quantity QmaxObtaining corresponding maximum operation power Pmax(ii) a Step four, keeping the operation power of the fuel cell system less than Pmax(ii) a Step five, circulating the step one to the step four; the control method can be used for controlling the temperature t according to the environment temperature0The running power of the fuel cell system can be continuously corrected, the running state of the system power can be controlled on line, and the situation that the running state of the system power is controlled on line is avoidedWhen the system enters a high-temperature environment to operate, the heat management is unbalanced due to insufficient heat dissipation capacity of the system, the system is ensured to operate in a safety range, and the heat protection effect is achieved.
Description
Technical Field
The invention relates to the technical field of fuel cells, in particular to a thermal protection control method, a thermal protection control system, a thermal protection control medium and thermal protection control equipment for a fuel cell system.
Background
The electrochemical reaction inside the fuel cell system pile is accompanied with heat generation, and in order to avoid irreversible damage to a catalyst layer and a proton exchange membrane caused by overhigh temperature inside the pile, the heat generated by the pile is usually taken away by using circulating cooling liquid so as to ensure the heat balance of the system. The cooling system of the fuel cell is composed of a water pump, a radiator fan assembly, a thermostat, a PTC heating assembly and the like. At present, forced air-cooled heat dissipation is mostly adopted to the fuel cell radiator, and the coolant liquid of play heap high temperature flows into the metal pipeline of radiator promptly, and the heat transmits the fin through heat-conduction, and when the air current that the fan produced flowed through the fin, through forcing convection heat transfer, with heat transfer to atmospheric environment in.
When the actual ambient temperature is higher than the design value, the heat dissipation capacity of the radiator is reduced at this time because the relative temperature difference between the air and the coolant is reduced. If the system is still running or pulling in a normal state, the heat generated by the system is higher than the heat dissipated by the radiator, and the balance is lost, so that the temperature of the cooling liquid of the system is increased, and the damage to the system components is possibly caused.
In order to avoid thermal management imbalance of the system when the ambient temperature is too high, a corresponding system online control method needs to be provided to ensure that the system operates within a safe range.
In the prior art, as disclosed in the patent publication No. CN112701330A, a temperature control method for a fuel cell hydrogen energy vehicle based on ambient temperature is disclosed, in which a temperature control system is used to calculate the rotational speed of a cooling fan and the compensation amount of an angle of an electronic thermostat according to the ambient temperature; by introducing an environment temperature variable and acquiring the environment temperature according to the vehicle state and the time period, the compensation quantity of the fan rotating speed and the thermostat angle is calculated according to the environment temperature so as to adjust the corresponding relation of the water temperature, the wind speed rotating speed, the water temperature and the electronic thermostat angle, thereby realizing control logics under different environment temperatures and enabling the performance of the fuel cell to be more excellent.
However, when the ambient temperature is too high, and the fan rotation speed and the thermostat angle compensation amount of the technical scheme are close to the limit values, the system still faces the problem of heat unbalance and does not have the thermal protection effect.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the fuel cell system thermal protection control method, the system, the medium and the equipment can avoid thermal management imbalance caused by insufficient heat dissipation capacity of the system when the system enters a high-temperature environment to operate, ensure that the system operates in a safety range and have a thermal protection effect.
In order to solve the above technical problems, a first technical solution adopted by the present invention is:
a thermal protection control method for a fuel cell system comprises
Step one, collecting current operation state parameters of a fuel cell system, wherein the operation state parameters comprise ambient temperature t0；
Step two, obtaining the maximum heat dissipation Q according to the operation state parametersmax；
Step three, according to the heat dissipation quantity QmaxObtaining corresponding maximum operation power Pmax；
Step four, keeping the operation power of the fuel cell system less than Pmax；
Step five, circulating the step one to the step four.
Preferably, the operating state parameters further include a fan duty ratio, a water pump rotation speed, a water pump flow rate, and a water temperature.
Preferably, the second step further comprises: in the part test, the corresponding environmental temperatures t under different environments are obtained0Fan duty ratio, water pump rotation speed, water pump flow and water temperature and maximum heat dissipation Q of radiatormaxA relationship chart of (1);
inquiring a relation chart according to the operating state parameters to obtain the maximum heat dissipation Qmax。
Preferably, the third step further comprises: according to the fuel cell systemObtaining relation charts of operating power, required water flow, required water temperature, required temperature difference and required heat dissipation capacity at different working condition points according to the condition requirement parameters, and converting the heat dissipation capacity Q in the second step into the heat dissipation capacity QmaxObtaining corresponding maximum operating power P in the relation chart as the required heat dissipation capacitymax。
In order to solve the above technical problem, the second technical solution adopted by the present invention is:
a thermal protection control system for a fuel cell system includes
The method comprises the steps of collecting current operation state parameters of a fuel cell system by a collecting device, wherein the operation state parameters comprise an ambient temperature t0；
Control device for obtaining maximum heat dissipation Q according to operating state parametersmax(ii) a According to the heat dissipation capacity QmaxObtaining corresponding maximum operation power Pmax(ii) a And keeping the operation power of the fuel cell system less than Pmax。
Preferably, the operating state parameters further include a fan duty ratio, a water pump rotation speed, a water pump flow rate, and a water temperature.
Preferably, in the part test, the corresponding environmental temperatures t under different environments are acquired0Fan duty ratio, water pump rotation speed, water pump flow and water temperature and maximum heat dissipation Q of radiatormaxA relationship chart of (1);
inquiring a relation chart according to the operating state parameters to obtain the maximum heat dissipation Qmax。
Preferably, according to the working condition demand parameters of the fuel cell system, obtaining a relation chart of the operating power, the required water flow, the required water temperature, the required temperature difference and the required heat dissipation capacity at different working condition points, and converting the heat dissipation capacity Q of the second step into the heat dissipation capacity Q of the second stepmaxObtaining corresponding maximum operating power P in the relation chart as the required heat dissipation capacitymax。
In order to solve the above technical problems, the third technical solution adopted by the present invention is:
a storage medium stores a computer program which, when executed by a processor, implements the fuel cell system thermal protection control method described above.
In order to solve the above technical problem, a fourth technical solution adopted by the present invention is:
an electronic device at least comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the thermal protection control method of the fuel cell system when executing the computer program on the memory.
The invention has the beneficial effects that: the control method can be based on the ambient temperature t0The running power of the fuel cell system can be continuously corrected, the running state of the power of the system can be controlled on line, the thermal management unbalance caused by insufficient heat dissipation capacity of the system when the system runs in a high-temperature environment is avoided, the system is ensured to run in a safety range, and the thermal protection effect is achieved.
Drawings
Fig. 1 is a schematic flow chart of a thermal protection control method for a fuel cell system according to an embodiment of the present invention.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Example one
Referring to fig. 1, a thermal protection control method of a fuel cell system includes
Step one, collecting current operation state parameters of a fuel cell system, wherein the operation state parameters comprise ambient temperature t0Fan duty ratio, water pump rotation speed, water pump flow and water temperature;
step two, acquiring corresponding environment temperatures t under different environments in part testing0Fan duty ratio, water pump rotation speed, water pump flow and water temperature and maximum heat dissipation Q of radiatormaxA relationship chart of (1); inquiring a relation chart according to the operating state parameters to obtain the maximum heat dissipation Qmax；
Step three, acquiring the operating power, the required water flow, the required water temperature, the required temperature difference and the operating power, the required water flow, the required water temperature and the required temperature difference at different operating points according to the operating condition required parameters of the fuel cell systemThe relation chart of the required heat dissipation capacity is that the heat dissipation capacity Q of the step two is shownmaxObtaining corresponding maximum operating power P in the relation chart as the required heat dissipation capacitymax；
Step four, keeping the operation power of the fuel cell system less than Pmax；
Step five, circulating the step one to the step four.
Example two
A thermal protection control system for a fuel cell system includes
The method comprises the steps of collecting current operation state parameters of a fuel cell system by a collecting device, wherein the operation state parameters comprise an ambient temperature t0Fan duty ratio, water pump rotation speed, water pump flow and water temperature;
control device, in the test of parts, obtain corresponding ambient temperature t under different environment0Fan duty ratio, water pump rotation speed, water pump flow and water temperature and maximum heat dissipation Q of radiatormaxAccording to the operation state parameter, obtaining the maximum heat dissipation quantity Qmax(ii) a Obtaining a relation chart of the operating power, the required water flow, the required water temperature, the required temperature difference and the required heat dissipation capacity at different working condition points according to the working condition requirement parameters of the fuel cell system, and converting the heat dissipation capacity Q of the step twomaxObtaining corresponding maximum operating power P in the relation chart as the required heat dissipation capacitymax(ii) a And keeping the operation power of the fuel cell system less than Pmax。
EXAMPLE III
A storage medium stores a computer program that, when executed by a processor, implements a fuel cell system thermal protection control method according to an embodiment.
Example four
An electronic device at least comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the thermal protection control method of the fuel cell system according to the embodiment when executing the computer program on the memory.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (10)
1. A thermal protection control method for a fuel cell system is characterized by comprising
Step one, collecting current operation state parameters of a fuel cell system, wherein the operation state parameters comprise ambient temperature t0；
Step two, obtaining the maximum heat dissipation Q according to the operation state parametersmax；
Step three, according to the heat dissipation quantity QmaxObtaining corresponding maximum operation power Pmax；
Step four, keeping the operation power of the fuel cell system less than Pmax；
Step five, circulating the step one to the step four.
2. The fuel cell system thermal protection control method of claim 1, wherein the operating state parameters further include a fan duty cycle, a water pump speed, a water pump flow rate, and a water temperature.
3. The fuel cell system thermal protection control method according to claim 2, wherein the second step further comprises: in the part test, the corresponding environmental temperatures t under different environments are obtained0Fan duty ratio, water pump rotation speed, water pump flow and water temperature and maximum heat dissipation Q of radiatormaxA relationship chart of (1);
inquiring a relation chart according to the operating state parameters to obtain the maximum heat dissipation Qmax。
4. The fuel cell system thermal protection control method according to claim 1, wherein the step three further comprises: obtaining the operating power, the required water flow rate and the like under different operating points according to the operating condition required parameters of the fuel cell system,The relation chart of the required water temperature, the required temperature difference and the required heat dissipation capacity is used for calculating the heat dissipation capacity Q in the second stepmaxObtaining corresponding maximum operating power P in the relation chart as the required heat dissipation capacitymax。
5. A thermal protection control system for a fuel cell system, comprising
The method comprises the steps of collecting current operation state parameters of a fuel cell system by a collecting device, wherein the operation state parameters comprise an ambient temperature t0；
Control device for obtaining maximum heat dissipation Q according to operating state parametersmax(ii) a According to the heat dissipation capacity QmaxObtaining corresponding maximum operation power Pmax(ii) a And keeping the operation power of the fuel cell system less than Pmax。
6. The fuel cell system thermal protection control system of claim 5, wherein the operating state parameters further include fan duty cycle, water pump speed, water pump flow, and water temperature.
7. The thermal protection control method of the fuel cell system according to claim 6, wherein the corresponding ambient temperatures t in different environments are obtained in the component test0Fan duty ratio, water pump rotation speed, water pump flow and water temperature and maximum heat dissipation Q of radiatormaxA relationship chart of (1);
inquiring a relation chart according to the operating state parameters to obtain the maximum heat dissipation Qmax。
8. The fuel cell system thermal protection control method of claim 5, wherein a relation chart of operating power, required water flow, required water temperature, required temperature difference and required heat dissipation capacity at different working condition points is obtained according to working condition required parameters of the fuel cell system, and heat dissipation capacity Q of the second step is obtainedmaxObtaining corresponding maximum operating power P in the relation chart as the required heat dissipation capacitymax。
9. A storage medium storing a computer program, wherein the computer program, when executed by a processor, implements the fuel cell system thermal protection control method of any one of claims 1 to 4.
10. An electronic device comprising at least a memory, a processor, the memory having a computer program stored thereon, wherein the processor, when executing the computer program on the memory, implements the fuel cell system thermal protection control method of any of claims 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111120957.6A CN113921870A (en) | 2021-09-24 | 2021-09-24 | Thermal protection control method, system, medium and equipment for fuel cell system |
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| CN202111120957.6A CN113921870A (en) | 2021-09-24 | 2021-09-24 | Thermal protection control method, system, medium and equipment for fuel cell system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114614051A (en) * | 2022-02-08 | 2022-06-10 | 东风汽车集团股份有限公司 | Fuel cell thermal management control method, device, medium and electronic equipment |
| CN114864995A (en) * | 2022-05-20 | 2022-08-05 | 上海捷氢科技股份有限公司 | Fuel cell heat dissipation method, device and system |
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| CN110774942A (en) * | 2019-10-31 | 2020-02-11 | 上海电力大学 | Fuel cell output power control method in hybrid power driving system |
| CN112768732A (en) * | 2021-02-03 | 2021-05-07 | 重庆长安新能源汽车科技有限公司 | Thermal management control method for fuel cell |
| CN112803036A (en) * | 2019-11-14 | 2021-05-14 | 郑州宇通客车股份有限公司 | Fuel cell thermal management system and control method thereof |
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2021
- 2021-09-24 CN CN202111120957.6A patent/CN113921870A/en active Pending
Patent Citations (4)
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| US20160172695A1 (en) * | 2014-12-15 | 2016-06-16 | Hyundai Motor Company | System and method for controlling power of fuel cell |
| CN110774942A (en) * | 2019-10-31 | 2020-02-11 | 上海电力大学 | Fuel cell output power control method in hybrid power driving system |
| CN112803036A (en) * | 2019-11-14 | 2021-05-14 | 郑州宇通客车股份有限公司 | Fuel cell thermal management system and control method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114614051A (en) * | 2022-02-08 | 2022-06-10 | 东风汽车集团股份有限公司 | Fuel cell thermal management control method, device, medium and electronic equipment |
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| CN114864995A (en) * | 2022-05-20 | 2022-08-05 | 上海捷氢科技股份有限公司 | Fuel cell heat dissipation method, device and system |
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