CN117525496A - Control method suitable for low-power fuel cell system - Google Patents
Control method suitable for low-power fuel cell system Download PDFInfo
- Publication number
- CN117525496A CN117525496A CN202311695708.9A CN202311695708A CN117525496A CN 117525496 A CN117525496 A CN 117525496A CN 202311695708 A CN202311695708 A CN 202311695708A CN 117525496 A CN117525496 A CN 117525496A
- Authority
- CN
- China
- Prior art keywords
- fuel cell
- temperature
- residual capacity
- time
- hydrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 154
- 238000000034 method Methods 0.000 title claims abstract description 34
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 239000001257 hydrogen Substances 0.000 claims abstract description 52
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims description 21
- 238000001816 cooling Methods 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 1
- 238000010248 power generation Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
- H01M8/04302—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
-
- 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
-
- 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
- H01M8/04537—Electric variables
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses a control method suitable for a low-power fuel cell system, which comprises the following steps: performing real-time self-checking on the system to obtain the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell; starting the fuel cell according to the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell, which are obtained through self-checking of the system, when the residual capacity of the storage battery is smaller than a first preset electric quantity, the residual capacity of the hydrogen storage tank is larger than a preset capacity and the temperature of the fuel cell is lower than a first preset temperature; and closing the fuel cell when the residual capacity of the storage battery is larger than the second preset capacity, the residual capacity of the hydrogen storage tank is smaller than the preset capacity or the temperature of the fuel cell is higher than the first preset temperature according to the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell which are obtained by the self-checking of the system. The data are mastered in real time through real-time self-checking, so that the starting time of the fuel cell can be selected according to the data, and the function of the fuel cell can be exerted to the greatest extent.
Description
Technical Field
The invention relates to the field of fuel cells, in particular to a control method suitable for a low-power fuel cell system.
Background
A fuel cell is a power generation device that directly converts chemical energy of fuel into direct-current electric energy in an electrochemical reaction manner without combustion. The working principle is that chemical energy of substances is converted into electric energy through electrochemical reaction, substances required by the chemical reaction of the fuel cell are continuously supplemented from outside, and the electric energy and the heat energy can be continuously output as long as fuel is supplied. In short, a fuel cell is an energy conversion device. Among the various types of fuel cells, proton exchange membrane fuel cells are not limited by carnot cycle because the power generation process does not involve oxyhydrogen combustion, have high energy conversion efficiency, do not generate pollution during power generation, and have wide application prospects as a new generation power generation technology based on the advantages. When the fuel cell is applied to a specific scene, particularly when the small fuel cell is applied to a two-wheeled electric vehicle, the power of the fuel cell is difficult to satisfy the riding power of the two-wheeled electric vehicle, so the fuel cell is generally used together with a storage battery. When the fuel cell is started, the fuel cell and the storage battery supply power for riding or the fuel cell charges the storage battery, and when the fuel cell is shut down, the storage battery supplies power for riding. In order to fully and stably utilize the fuel cell, it is necessary to study the start timing of the fuel cell.
Disclosure of Invention
The invention aims to provide a control method suitable for a low-power fuel cell system, which comprises the following specific technical scheme:
a control method for a low power fuel cell system, comprising: performing real-time self-checking on the system to obtain the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell; starting the fuel cell according to the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell, which are obtained through self-checking of the system, when the residual capacity of the storage battery is smaller than a first preset electric quantity, the residual capacity of the hydrogen storage tank is larger than a preset capacity and the temperature of the fuel cell is lower than a first preset temperature; and closing the fuel cell when the residual capacity of the storage battery is larger than the second preset capacity, the residual capacity of the hydrogen storage tank is smaller than the preset capacity or the temperature of the fuel cell is higher than the first preset temperature according to the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell which are obtained by the self-checking of the system.
Optionally, performing real-time self-checking on the system, and acquiring real-time; and starting the fuel cell according to the real-time acquired by the system self-test when the real-time is at the preset time.
Optionally, starting the fuel cell includes: starting the power supply of the fuel cell matching device, and providing power support for starting the fuel cell matching device; opening a hydrogen inlet to provide hydrogen for the fuel cell; starting a blower to provide oxygen for the fuel cell; starting a cooling device to control the temperature of the fuel cell within a preset range; and starting a hydrogen side tail gas discharge device to discharge the tail gas after the reaction in the fuel cell.
Optionally, shutting down the fuel cell includes: closing the hydrogen inlet, and stopping supplying hydrogen to the fuel cell; closing the hydrogen side tail gas discharge device, and stopping discharging the tail gas after the reaction in the fuel cell; turning off the blower to stop supplying oxygen to the fuel cell; closing the cooling device, and stopping the temperature control of the fuel cell; and closing the fuel cell matched device, and stopping providing power support for opening the fuel cell matched device.
Optionally, in starting the blower, the operation method of the blower is as follows: operating at full speed for 5-20 seconds after opening; after the full-speed operation is completed, air is supplied into the fuel cell at 5 to 10 times the amount of the hydrogen intake air in accordance with the stoichiometric ratio.
Optionally, in the device for opening the tail gas emission on the hydrogen side, the tail gas emission method comprises the following steps: after opening, performing first discharge; the first discharge is completed, and the discharge is performed at intervals of 30-60s, and the discharge time is 0.05-0.3 seconds each time.
Optionally, the cooling device is turned on to control the temperature of the fuel cell within a preset range, and the temperature of the fuel cell is controlled between 40 ℃ and 70 ℃.
Optionally, in turning off the blower, the method for turning off the blower includes: after closing the hydrogen inlet and the hydrogen side tail gas discharge device, the blower runs at full speed; and according to the temperature of the fuel cell obtained by the system self-check, when the temperature of the fuel cell is lower than a second preset temperature, the blower is turned off after being operated at full speed for 5-60 seconds.
Optionally, in closing the cooling device, the closing method of the cooling device is as follows: and according to the temperature of the fuel cell obtained by the system self-check, when the temperature of the fuel cell is lower than a second preset temperature, the cooling device is closed after being operated for 5-60 seconds.
Optionally, performing real-time self-checking on the system, and further acquiring real-time power of the fuel cell; in the exhaust emission method, the emission interval and each emission time are changed according to a change in the real-time power of the fuel cell.
The technical scheme of the invention has the following beneficial technical effects: the system is subjected to real-time self-check, so that the data such as the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank, the temperature of the fuel cell and the like are mastered in real time, the starting time of the fuel cell can be selected according to the data, and the function of the fuel cell can be played to the greatest extent. Meanwhile, through the data acquired in real time, the situation that the fuel cell is easy to fail can be found out in time, and the fuel cell is shut down in time.
Drawings
Fig. 1 is a flow chart of the fuel cell start-up and shut-down in the present invention.
Detailed Description
The present invention will be further described in detail with reference to the following embodiments, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the description is only illustrative and is not intended to limit the scope of the invention. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present invention.
As shown in fig. 1, a control method suitable for a low-power fuel cell system includes: performing real-time self-checking on the system to obtain the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell; starting the fuel cell according to the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell, which are obtained through self-checking of the system, when the residual capacity of the storage battery is smaller than a first preset electric quantity, the residual capacity of the hydrogen storage tank is larger than a preset capacity and the temperature of the fuel cell is lower than a first preset temperature; and closing the fuel cell when the residual capacity of the storage battery is larger than the second preset capacity, the residual capacity of the hydrogen storage tank is smaller than the preset capacity or the temperature of the fuel cell is higher than the first preset temperature according to the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell which are obtained by the self-checking of the system. The system is subjected to real-time self-check, so that the data such as the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank, the temperature of the fuel cell and the like are mastered in real time, the starting time of the fuel cell can be selected according to the data, and the function of the fuel cell can be played to the greatest extent. Meanwhile, through the data acquired in real time, the situation that the fuel cell is easy to fail can be found out in time, and the fuel cell is shut down in time. In specific use, the storage battery can be used for supplying power to the controller, the controller is electrically connected with each component, the data of each component is acquired in real time, and the opening and closing time of the fuel cell can be set according to the data acquired in real time.
In other optional embodiments, the system is self-checked in real time, and real time is also obtained; and starting the fuel cell according to the real-time acquired by the system self-test when the real-time is at the preset time. In specific use, the conditions such as rush hour and rush hour may exist, and the fuel cell can be started before the rush hour begins or the fuel cell is started, so that the electric quantity of the storage battery is fully charged in advance, and the efficiency of the fuel cell is fully exerted. For example, the fuel cell can be started to fill the storage battery in six hours in summer, and the fuel cell can be started to fill the storage battery in the winter at 10 am, 3 pm, and the like.
In other alternative embodiments, starting the fuel cell includes: starting the power supply of the fuel cell matching device, and providing power support for starting the fuel cell matching device; opening a hydrogen inlet to provide hydrogen for the fuel cell; starting a blower to provide oxygen for the fuel cell; starting a cooling device to control the temperature of the fuel cell within a preset range; and starting a hydrogen side tail gas discharge device to discharge the tail gas after the reaction in the fuel cell. In the starting of the blower, the operation method of the blower is as follows: operating at full speed for 5-20 seconds after opening; after the full-speed operation is completed, air is supplied into the fuel cell at 5 to 10 times the amount of the hydrogen intake air in accordance with the stoichiometric ratio. In the device for starting the hydrogen side tail gas emission, the tail gas emission method comprises the following steps: after opening, performing first discharge; the first discharge is completed, and the discharge is performed at intervals of 30-60s, and the discharge time is 0.05-0.3 seconds each time. And starting a cooling device, controlling the temperature of the fuel cell within a preset range, and controlling the temperature of the fuel cell between 40 ℃ and 70 ℃.
In other alternative embodiments, shutting down the fuel cell includes: closing the hydrogen inlet, and stopping supplying hydrogen to the fuel cell; closing the hydrogen side tail gas discharge device, and stopping discharging the tail gas after the reaction in the fuel cell; turning off the blower to stop supplying oxygen to the fuel cell; closing the cooling device, and stopping the temperature control of the fuel cell; and closing the fuel cell matched device, and stopping providing power support for opening the fuel cell matched device. In the closing of the blower, the method for closing the blower comprises the following steps: after closing the hydrogen inlet and the hydrogen side tail gas discharge device, the blower runs at full speed; and according to the temperature of the fuel cell obtained by the system self-check, when the temperature of the fuel cell is lower than a second preset temperature, the blower is turned off after being operated at full speed for 5-60 seconds. In the cooling device closing method, the cooling device closing method comprises the following steps: and according to the temperature of the fuel cell obtained by the system self-check, when the temperature of the fuel cell is lower than a second preset temperature, the cooling device is closed after being operated for 5-60 seconds.
In other alternative embodiments, the system is self-checked in real time, and the real-time power of the fuel cell is also obtained; in the exhaust emission method, the emission interval and each emission time are changed according to a change in the real-time power of the fuel cell.
Claims (10)
1. A control method for a low power fuel cell system, comprising:
performing real-time self-checking on the system to obtain the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell;
starting the fuel cell according to the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell, which are obtained through self-checking of the system, when the residual capacity of the storage battery is smaller than a first preset electric quantity, the residual capacity of the hydrogen storage tank is larger than a preset capacity and the temperature of the fuel cell is lower than a first preset temperature;
and closing the fuel cell when the residual capacity of the storage battery is larger than the second preset capacity, the residual capacity of the hydrogen storage tank is smaller than the preset capacity or the temperature of the fuel cell is higher than the first preset temperature according to the residual capacity of the storage battery, the residual capacity of the hydrogen storage tank and the temperature of the fuel cell which are obtained by the self-checking of the system.
2. The control method for a small power fuel cell system according to claim 1, wherein:
the system is subjected to real-time self-checking, and real-time is also acquired;
and starting the fuel cell according to the real-time acquired by the system self-test when the real-time is at the preset time.
3. The control method for a small power fuel cell system according to claim 1 or 2, wherein the starting up the fuel cell includes:
starting the power supply of the fuel cell matching device, and providing power support for starting the fuel cell matching device;
opening a hydrogen inlet to provide hydrogen for the fuel cell;
starting a blower to provide oxygen for the fuel cell;
starting a cooling device to control the temperature of the fuel cell within a preset range;
and starting a hydrogen side tail gas discharge device to discharge the tail gas after the reaction in the fuel cell.
4. The control method for a small power fuel cell system according to claim 1 or 2, wherein the turning off the fuel cell comprises:
closing the hydrogen inlet, and stopping supplying hydrogen to the fuel cell;
closing the hydrogen side tail gas discharge device, and stopping discharging the tail gas after the reaction in the fuel cell;
turning off the blower to stop supplying oxygen to the fuel cell;
closing the cooling device, and stopping the temperature control of the fuel cell;
and closing the fuel cell matched device, and stopping providing power support for opening the fuel cell matched device.
5. The control method for a low power fuel cell system according to claim 3, wherein in said turning on the blower, the blower operation method is as follows:
operating at full speed for 5-20 seconds after opening;
after the full-speed operation is completed, air is supplied into the fuel cell at 5 to 10 times the amount of the hydrogen intake air in accordance with the stoichiometric ratio.
6. The control method for a low power fuel cell system according to claim 3, wherein in the opening of the hydrogen side exhaust gas discharge device, the exhaust gas discharge method is as follows:
after opening, performing first discharge;
the first discharge is completed, and the discharge is performed at intervals of 30-60s, and the discharge time is 0.05-0.3 seconds each time.
7. A control method for a low power fuel cell system according to claim 3, wherein said cooling means is turned on to control the temperature of the fuel cell within a predetermined range and to control the temperature of the fuel cell to between 40 and 70 ℃.
8. The control method for a low power fuel cell system according to claim 4, wherein the method for turning off the blower is:
after closing the hydrogen inlet and the hydrogen side tail gas discharge device, the blower runs at full speed;
and according to the temperature of the fuel cell obtained by the system self-check, when the temperature of the fuel cell is lower than a second preset temperature, the blower is turned off after being operated at full speed for 5-60 seconds.
9. The control method for a low power fuel cell system according to claim 4, wherein the cooling device is turned off by:
and according to the temperature of the fuel cell obtained by the system self-check, when the temperature of the fuel cell is lower than a second preset temperature, the cooling device is closed after being operated for 5-60 seconds.
10. A control method for a low power fuel cell system according to claim 6, wherein,
the system is subjected to real-time self-inspection, and the real-time power of the fuel cell is also obtained;
in the exhaust emission method, the emission interval and each emission time are varied according to a variation in real-time power of the fuel cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311695708.9A CN117525496A (en) | 2023-12-08 | 2023-12-08 | Control method suitable for low-power fuel cell system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311695708.9A CN117525496A (en) | 2023-12-08 | 2023-12-08 | Control method suitable for low-power fuel cell system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117525496A true CN117525496A (en) | 2024-02-06 |
Family
ID=89749415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311695708.9A Pending CN117525496A (en) | 2023-12-08 | 2023-12-08 | Control method suitable for low-power fuel cell system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117525496A (en) |
-
2023
- 2023-12-08 CN CN202311695708.9A patent/CN117525496A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103236555B (en) | Solid oxide fuel cell system and thermoelectricity synergic control method | |
| CN102569854B (en) | Portable power supply system of proton exchange membrane fuel cell (PEMFC) | |
| CN111403772A (en) | Cold starting device of fuel cell and control method thereof | |
| CN100483819C (en) | Hydrogen gas system for enhancing fuel battery service life | |
| CN110911721B (en) | Fuel cell control method and fuel cell control device | |
| CN209880732U (en) | Hydrogen fuel cell cold start and emergency starting device based on ejector | |
| KR102316963B1 (en) | Fuel cell system | |
| US20050044853A1 (en) | Ecology system | |
| Zhang et al. | Modeling and analysis of air supply system of polymer electrolyte membrane fuel cell system | |
| CN109404133A (en) | Compressed-air energy-storage system and its application method | |
| CN114400351B (en) | Fuel cell heat pump system and operation method thereof | |
| CN202444020U (en) | Portable PEMFC (Proton Exchange Membrane Fuel Cell) power supply system | |
| CN111894735B (en) | Hydrogen gas turbine combined cycle poly-generation method without NOx emission | |
| CN111942137A (en) | Hybrid power system for automobile, using method thereof and automobile using same | |
| CN117525496A (en) | Control method suitable for low-power fuel cell system | |
| CN101132071A (en) | Testing method for accelerative checking service life of fuel cell | |
| CN108598541B (en) | SOFC temperature control method, temperature control system and vehicle | |
| CN113098037B (en) | Control method and system of thermoelectric hybrid energy storage system | |
| CN212667106U (en) | Fuel oil and fuel cell hybrid power system and automobile using same | |
| KR20060033519A (en) | Measurement apparatus for a pressure loss of a fuel cell bop with mock-up stack | |
| CN208970646U (en) | A kind of fuel cell started quickly at low temperature system | |
| CN210040416U (en) | Novel fuel cell system power generation device | |
| CN114718730B (en) | Hydrogen-burning gas turbine system for converting ammonia into hydrogen and control method | |
| CN114483308B (en) | Peak-adjustable power generation system and peak-adjustable method based on renewable energy power generation | |
| CN114899884B (en) | Peak regulating power generation system and method for coupling carbon dioxide capturing and utilizing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |