Air-cooled fuel cell startup method, device, electrical equipment and storage medium

Abstract

The present application relates to a method, apparatus, electrical equipment, and storage medium for starting an air-cooled fuel cell. The method comprises: performing hydrogen purges on the anode of a fuel cell stack in batches until the hydrogen content in the anode of the fuel cell stack meets the startup requirements of the air-cooled fuel cell. The method then stops the hydrogen purge on the anode of the fuel cell stack by closing the anode outlet pipe. This prevents excessive hydrogen purges from wasting hydrogen and drying out the membrane electrode, which reduces the performance of the membrane electrode. This method solves the problem of excessive hydrogen purges on the anode of existing air-cooled fuel cells during startup, which results in hydrogen waste and reduced membrane electrode performance.

Description

Technical Field

[0001] The present application relates to the technical field of air-cooled fuel cells, and in particular to an air-cooled fuel cell startup method, device, electrical equipment, and storage medium. Background Art

[0002] Hydrogen is widely considered a clean energy source. A hydrogen fuel cell is a power generation device that uses hydrogen as a reducing agent and air as an oxidant to undergo a redox reaction, converting chemical energy into electrical energy while releasing a certain amount of heat. This power generation device boasts high efficiency and is pollution-free. Hydrogen fuel cells that use air for cooling are known as air-cooled fuel cells. Due to their simplicity, portability, and compact size, air-cooled fuel cells are widely used in automobiles, portable power supplies, and small drive systems.

[0003] After an air-cooled fuel cell is shut down, the non-hydrogen gas on the cathode side of the stack diffuses into the anode chamber due to the pressure and concentration differences between the two sides. Simultaneously, the hydrogen in the anode chamber also passes through the proton exchange membrane to reach the cathode. The presence of non-hydrogen gas in the stack's anode chamber causes the anode hydrogen concentration to drop during startup, resulting in reduced power generation efficiency and localized hydrogen deficiency. Furthermore, impurity gases in the anode chamber can cause problems such as excessive startup potential, prolonged OCV buildup time, and negative voltage, leading to startup failure. High concentrations of non-hydrogen gas or impurities in the anode hydrogen during startup can cause startup failure. Therefore, air-cooled fuel cells require hydrogen anode purge during startup. Currently, the purge methods used are all over-purges, which not only waste a large amount of hydrogen but also dry out the membrane electrode, reducing its performance. Summary of the Invention

[0004] The present application provides an air-cooled fuel cell startup method, device, electrical equipment and storage medium to solve the problem that existing air-cooled fuel cells use hydrogen to perform excessive anode purge during startup, resulting in hydrogen waste and reduced membrane electrode performance.

[0005] In a first aspect, the present application provides an air-cooled fuel cell startup method, which is applied to an air-cooled fuel cell, wherein the air-cooled fuel cell includes a hydrogen supply system, a fuel cell stack, a hydrogen inlet pipeline, an anode outlet pipeline of the fuel cell stack, and a cathode fan, wherein the hydrogen supply system is connected to the fuel cell stack through the hydrogen inlet pipeline, the fuel cell stack is also connected to the anode outlet pipeline, and the cathode fan is connected to the cathode air duct of the fuel cell stack, and the method includes:

[0006] Upon receiving a start-up signal of the air-cooled fuel cell, the anode gas outlet pipeline and the hydrogen gas inlet pipeline are sequentially connected;

[0007] Controlling the hydrogen in the hydrogen supply system to purge the anode of the fuel cell stack through the hydrogen inlet pipeline, and accumulating the purge time;

[0008] When the purge time reaches a preset time, judging whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell according to the cell voltage of each single cell constituting the fuel cell stack;

[0009] When the hydrogen content at the anode of the stack does not meet the startup requirement of the air-cooled fuel cell, closing the hydrogen inlet pipeline and restarting the air-cooled fuel cell, and re-performing the step of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the startup signal until the purge time reaches a preset time, judging whether the hydrogen content at the anode of the stack meets the startup requirement of the air-cooled fuel cell based on the cell voltage of each single cell constituting the stack;

[0010] When the hydrogen content of the anode of the fuel cell stack meets the startup requirement of the air-cooled fuel cell, the anode outlet pipeline is closed and the cathode fan is turned on to successfully start the air-cooled fuel cell.

[0011] Optionally, when the purge duration reaches a preset duration, judging whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell according to the cell voltage of each single cell constituting the fuel cell stack includes:

[0012] When the purge time reaches a preset time, obtaining the battery voltage of each single battery constituting the battery stack;

[0013] Selecting a lowest chip voltage with the smallest value and a highest chip voltage with the largest value from the plurality of battery voltages;

[0014] According to the comparison result between the minimum slice voltage, the maximum slice voltage and the preset voltage range, it is judged whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell.

[0015] Optionally, judging whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell based on a comparison result between the lowest slice voltage, the highest slice voltage and a preset voltage range includes:

[0016] When the minimum slice voltage and the maximum slice voltage are within the preset voltage range, determining that the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell;

[0017] When the lowest slice voltage is less than the lower threshold of the preset voltage range, and / or the highest slice voltage is greater than the upper threshold of the preset voltage range, it is determined that the anode hydrogen content of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell.

[0018] Optionally, when the hydrogen content at the anode of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell, closing the hydrogen inlet pipeline and restarting the air-cooled fuel cell, and re-performing the step of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the startup signal, until determining whether the hydrogen content at the anode of the fuel cell stack meets the startup requirement of the air-cooled fuel cell according to the cell voltage of each single cell constituting the fuel cell stack, includes:

[0019] When the anode hydrogen content of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell, obtaining the restart purge number of the air-cooled fuel cell;

[0020] When the restart purge times are less than the preset times, the hydrogen inlet pipeline is closed and the air-cooled fuel cell is restarted, and the steps of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the start signal are re-executed until the step of judging whether the anode hydrogen content of the fuel cell stack meets the start-up requirements of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the fuel cell stack.

[0021] Optionally, when the anode hydrogen content of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell, after obtaining the restart purge times of the air-cooled fuel cell, the method further includes:

[0022] When the restart purge times are equal to the preset times, the air-cooled fuel cell is shut down.

[0023] Optionally, when the purge duration reaches a preset duration, after determining whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the fuel cell stack, the method further includes:

[0024] When the hydrogen content of the anode of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell, closing the hydrogen inlet pipeline and restarting the air-cooled fuel cell after a delay of a specified time;

[0025] Using the updated preset time, re-execute the step of sequentially opening the anode outlet pipe and the hydrogen inlet pipe in accordance with the start signal until the purge time reaches the preset time, and judging whether the anode hydrogen content of the fuel cell stack meets the start-up requirement of the air-cooled fuel cell based on the cell voltage of each single cell constituting the fuel cell stack, wherein the updated preset time is equal to the preset time before the update minus the preset step size;

[0026] When the hydrogen content of the anode of the fuel cell stack meets the startup requirement of the air-cooled fuel cell, the anode outlet pipeline is closed and the cathode fan is turned on to successfully start the air-cooled fuel cell.

[0027] In a second aspect, the present application provides an air-cooled fuel cell starting device, the air-cooled fuel cell starting device comprising:

[0028] a switch control module, configured to sequentially connect the anode gas outlet pipeline and the hydrogen gas inlet pipeline upon receiving a start signal of the air-cooled fuel cell;

[0029] a purge control module, configured to control the hydrogen in the hydrogen supply system to purge the anode of the fuel cell stack through the hydrogen inlet pipeline, and to accumulate the purge time;

[0030] a judgment module, configured to judge whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell according to the cell voltage of each single cell constituting the fuel cell stack when the purge time reaches a preset time;

[0031] a restart module, configured to, when the hydrogen content at the anode of the stack does not meet the startup requirement of the air-cooled fuel cell, close the hydrogen inlet pipeline and restart the air-cooled fuel cell, and re-execute the step of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline in accordance with the startup signal until the purge time reaches a preset time, and then, based on the cell voltages of the individual cells constituting the stack, determine whether the hydrogen content at the anode of the stack meets the startup requirement of the air-cooled fuel cell;

[0032] The starting module is used to close the anode outlet pipeline and start the cathode fan when the anode hydrogen content of the fuel cell stack meets the starting requirements of the air-cooled fuel cell, so as to successfully start the air-cooled fuel cell.

[0033] In the third aspect, the present application provides an air-cooled fuel cell, which includes a fuel cell system and an air-cooled fuel cell starting device. The fuel cell system includes a hydrogen supply system, a fuel cell stack, a hydrogen inlet pipeline, an anode outlet pipeline of the fuel cell stack, and a cathode fan. The hydrogen supply system is connected to the fuel cell stack through the hydrogen inlet pipeline, the fuel cell stack is also connected to the anode outlet pipeline, and the cathode fan is connected to the cathode air duct of the fuel cell stack.

[0034] In a fourth aspect, the present application provides an electrical device, which includes the above-mentioned air-cooled fuel cell.

[0035] In a fifth aspect, the present application also provides a computer storage medium storing computer executable instructions, wherein the computer executable instructions are used to execute the above-mentioned air-cooled fuel cell startup method.

[0036] The above technical solution provided by the embodiment of the present application has the following advantages over the prior art: the method provided by the embodiment of the present application is applied to an air-cooled fuel cell, the air-cooled fuel cell comprising a hydrogen supply system, a fuel cell, a hydrogen inlet pipeline, an anode outlet pipeline of the fuel cell and a cathode fan, the hydrogen supply system is connected to the fuel cell through the hydrogen inlet pipeline, the fuel cell is also connected to the anode outlet pipeline, and the cathode fan is connected to the cathode air duct of the fuel cell, the method comprises: upon receiving a start signal of the air-cooled fuel cell, sequentially connecting the anode outlet pipeline and the hydrogen inlet pipeline; controlling the hydrogen in the hydrogen supply system to purge the anode of the fuel cell through the hydrogen inlet pipeline, and accumulating the purge time; when the purge time reaches a preset time, according to the composition The battery voltage of each single cell of the stack is used to determine whether the anode hydrogen content of the stack meets the startup requirement of the air-cooled fuel cell; when the anode hydrogen content of the stack does not meet the startup requirement of the air-cooled fuel cell, the hydrogen inlet pipeline is closed and the air-cooled fuel cell is restarted, and the step of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the startup signal is re-executed until the purge time reaches a preset time. According to the battery voltage of each single cell constituting the stack, whether the anode hydrogen content of the stack meets the startup requirement of the air-cooled fuel cell is determined; when the anode hydrogen content of the stack meets the startup requirement of the air-cooled fuel cell, the anode outlet pipeline is closed and the cathode fan is turned on to successfully start the air-cooled fuel cell.

[0037] Based on the above method, the anode of the fuel cell stack is purged with hydrogen in batches until the hydrogen content in the anode of the fuel cell stack meets the startup requirement of the air-cooled fuel cell. The anode gas outlet pipe is closed to stop the hydrogen purging of the anode of the fuel cell stack, thereby preventing excessive hydrogen purging from causing hydrogen waste and drying out the membrane electrode, thereby reducing the performance of the membrane electrode. This solves the problem of existing air-cooled fuel cells using hydrogen to excessively purge the anode during startup, resulting in hydrogen waste and reduced membrane electrode performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0040] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0041] Figure 1 A schematic structural diagram of an air-cooled fuel cell provided in an embodiment of the present application;

[0042] Figure 2 A schematic flow chart of a method for starting an air-cooled fuel cell according to an embodiment of the present application;

[0043] Figure 3 A schematic flow chart of a method for starting an air-cooled fuel cell according to an embodiment of the present application;

[0044] Figure 4 A structural block diagram of an air-cooled fuel cell starting device provided in an embodiment of the present application;

[0045] Figure 5 A schematic diagram of the internal structure of an electrical device provided in an embodiment of the present application;

[0046] 1. Hydrogen supply system; 2. Hydrogen supply pipeline; 3. Manual shut-off valve; 4. Intake solenoid valve; 5. Pressure sensor; 6. Anode air inlet; 7. Anode air outlet; 8. Exhaust solenoid valve; 9. Exhaust pipe; 10. Air-cooled fuel cell starting device; 11. Fuel cell stack; 12. Cathode air duct; 13. Cathode fan; 310. Switch control module; 320. Purge control module; 330. Judgment module; 340. Restart module; 350. Start module. DETAILED DESCRIPTION

[0047] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0048] The disclosure below provides many different embodiments or examples for implementing different configurations of the present invention. To simplify the disclosure of the present invention, the components and configurations of specific examples are described below. Of course, these are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or configurations discussed.

[0049] Figure 1 FIG. 1 is a schematic diagram of the structure of an air-cooled fuel cell in one embodiment. Figure 1 The air-cooled fuel cell starting method is applied to an air-cooled fuel cell. The air-cooled fuel cell includes a fuel cell system and an air-cooled fuel cell starting device 10. The fuel cell system includes a hydrogen supply system 1, a fuel cell stack 11, a hydrogen inlet pipeline, an anode outlet pipeline of the fuel cell stack 11, and a cathode fan 13. The hydrogen supply system 1 is connected to the fuel cell stack 11 through the hydrogen inlet pipeline. The fuel cell stack 11 is also connected to the anode outlet pipeline. The cathode fan 13 is connected to the cathode air duct 12 of the fuel cell stack.

[0050] Specifically, the hydrogen inlet pipeline includes a manual shut-off valve 3, an intake solenoid valve 4, and a pressure sensor 5. The hydrogen supply system 1 is connected to the anode inlet 6 of the fuel cell stack 11 through the hydrogen supply pipeline 2, the manual shut-off valve 3, the intake solenoid valve 4, and the pressure sensor 5. The anode outlet pipeline includes an anode outlet 7, an outlet solenoid valve 8, and an exhaust pipe 9. The anode outlet 7 of the fuel cell stack 11 is connected to the exhaust pipe 9 through the outlet solenoid valve 8. The cathode fan 13 is connected to the cathode of the fuel cell stack 11 through the cathode air duct 12.

[0051] The hydrogen in the hydrogen supply system 1 passes through the hydrogen supply line 2, the manual shut-off valve 3, the air intake solenoid valve 4, the pressure sensor 5, and the anode air intake 6 of the fuel cell stack 11 to enter the anode of the fuel cell stack 11. The anode exhaust gas and water after participating in the chemical reaction are discharged from the anode outlet 7, through the air outlet solenoid valve 8 and the exhaust pipe 9 in sequence. Under the action of the cathode fan 13, the air passes through the cathode air duct 12 and enters the cathode of the fuel cell stack 11 to participate in the chemical reaction. The water and waste heat generated by the chemical reaction are discharged from the cathode flow channel along with the air that did not participate in the chemical reaction. The cathode flow channel is composed of multiple through holes arranged on the outer surfaces of the corresponding anode and cathode of the fuel cell stack 11.

[0052] In one embodiment, Figure 2 A schematic diagram of a method for starting an air-cooled fuel cell according to an embodiment of the present invention is shown in FIG. Figure 2 , provides an air-cooled fuel cell startup method. This embodiment mainly applies this method to the above Figure 1 Taking the air-cooled fuel cell starting device 10 in the example as an example, the air-cooled fuel cell starting method specifically includes the following steps:

[0053] Step S210 , upon receiving a start signal of the air-cooled fuel cell, the anode gas outlet pipeline and the hydrogen gas inlet pipeline are sequentially opened.

[0054] Specifically, the start signal is used to request the start of the air-cooled fuel cell. According to the start signal, the outlet solenoid valve 8 and the inlet solenoid valve 4 are opened in sequence, that is, the anode outlet pipeline and the hydrogen inlet pipeline are connected in sequence. Prior to this, the manual stop valve 3 has been manually opened to achieve subsequent hydrogen purge.

[0055] Step S220 , controlling the hydrogen in the hydrogen supply system 1 to purge the anode of the fuel cell stack 11 through the hydrogen inlet pipeline, and accumulating the purge time.

[0056] Specifically, the hydrogen in the hydrogen supply system 1 is transferred to the anode of the fuel cell stack 11 through the hydrogen inlet pipe to purge the anode with hydrogen, and replace the non-hydrogen gas and impurities in the anode and the anode reaction chamber to the anode outlet pipe for discharge. However, in order to avoid excessive purging of the anode, the anode purge is timed to obtain the purge duration.

[0057] Step S230 , when the purge time reaches a preset time, judging whether the anode hydrogen content of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell based on the battery voltage of each single battery constituting the fuel cell stack 11 .

[0058] Specifically, the preset duration is the limited duration of each continuous purge, which can be 3 seconds, 4 seconds, 5 seconds, etc. When the purge time reaches the preset duration, it is necessary to judge the anode hydrogen content to determine whether the anode hydrogen content after purge meets the startup requirements of the air-cooled fuel cell. The anode hydrogen content is specifically determined based on the battery voltage of each single battery that makes up the fuel cell stack 11.

[0059] Step S240, when the anode hydrogen content of the fuel cell stack 11 does not meet the startup requirements of the air-cooled fuel cell, the hydrogen inlet pipeline is closed and the air-cooled fuel cell is restarted, and the anode outlet pipeline and the hydrogen inlet pipeline are turned on in sequence according to the startup signal again, until the purge time reaches the preset time, the cell voltage of each single cell constituting the fuel cell stack 11 is used to determine whether the anode hydrogen content of the fuel cell stack 11 meets the startup requirements of the air-cooled fuel cell.

[0060] Specifically, if the anode hydrogen content of the fuel cell stack 11 does not meet the startup requirements of the air-cooled fuel cell, indicating that the anode hydrogen content is insufficient and hydrogen purging is required, the air intake line is closed, that is, the anode hydrogen purging is stopped first and the air-cooled fuel cell is restarted, that is, steps S210-S230 are executed again in a cycle, that is, the anode is purged for the second time. If the anode hydrogen content after the second purge does not meet the startup requirements of the air-cooled fuel cell, step S240 is executed again, and the process returns to re-execute steps S210-S230, so as to achieve batch purge of the anode. After each purge, it is necessary to determine whether the anode hydrogen content meets the startup requirements of the air-cooled fuel cell.

[0061] Step S250 , when the anode hydrogen content of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell, the anode gas outlet pipeline is closed and the cathode fan 13 is turned on to successfully start the air-cooled fuel cell.

[0062] Specifically, until the hydrogen content at the anode of the stack 11 meets the startup requirements of the air-cooled fuel cell, the anode outlet pipeline is closed, that is, the hydrogen purge to the anode is stopped, and the cathode fan 13 is turned on to successfully start the air-cooled fuel cell. By purging the anode of the stack 11 with hydrogen in batches until the hydrogen content at the anode of the stack 11 meets the startup requirements of the air-cooled fuel cell, the anode outlet pipeline is closed to stop the hydrogen purge to the anode of the stack 11. This prevents excessive hydrogen purge from causing hydrogen waste and drying out the membrane electrode, thereby reducing the performance of the membrane electrode. This solves the problem of existing air-cooled fuel cells using hydrogen for excessive anode purge during startup, resulting in hydrogen waste and reduced membrane electrode performance.

[0063] In one embodiment, when the purge duration reaches a preset duration, judging whether the anode hydrogen content of the fuel cell stack 11 meets the startup requirements of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the fuel cell stack 11 includes:

[0064] When the purge time reaches a preset time, obtaining the battery voltage of each single battery constituting the battery stack 11;

[0065] Selecting a lowest chip voltage with the smallest value and a highest chip voltage with the largest value from the plurality of battery voltages;

[0066] According to the comparison result between the minimum slice voltage, the maximum slice voltage and the preset voltage range, it is determined whether the anode hydrogen content of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell.

[0067] Specifically, when the purge duration of a single anodic purge reaches the preset duration, the cell voltages of each single cell constituting the fuel cell stack 11 are acquired. The minimum value among the cell voltages of multiple single cells is taken as the lowest cell voltage, and the maximum value is taken as the highest cell voltage. Based on the highest cell voltage and the lowest cell voltage, it is comprehensively determined whether the anodic hydrogen content of the entire fuel cell stack 11 meets the startup requirements of the air-cooled fuel cell. Specifically, it is determined according to the comparison result between the lowest cell voltage, the highest cell voltage, and the preset voltage range. The preset voltage range is adapted to the startup requirements of the air-cooled fuel cell. The startup requirements of the air-cooled fuel cell include the minimum anodic hydrogen content required for the startup of the air-cooled fuel cell. There is a corresponding relationship between the minimum anodic hydrogen content and the preset voltage range. If the comparison relationship between the lowest cell voltage, the highest cell voltage, and the preset voltage range indicates that the anodic hydrogen content of the fuel cell stack 11 is greater than or equal to the minimum anodic hydrogen content, it is determined that the anodic hydrogen content meets the startup requirements of the air-cooled fuel cell.

[0068] In one embodiment, the determination of whether the anodic hydrogen content of the fuel cell stack 11 meets the startup requirements of the air-cooled fuel cell according to the comparison result between the lowest cell voltage, the highest cell voltage, and the preset voltage range includes:

[0069] When the lowest cell voltage and the highest cell voltage are within the preset voltage range, it is determined that the anodic hydrogen content of the fuel cell stack 11 meets the startup requirements of the air-cooled fuel cell;

[0070] When the lowest cell voltage is less than the lower threshold of the preset voltage range, and / or the highest cell voltage is greater than the upper threshold of the preset voltage range, it is determined that the anodic hydrogen content of the fuel cell stack 11 does not meet the startup requirements of the air-cooled fuel cell.

[0071] Specifically, the lowest cell voltage is denoted as U1, the highest cell voltage is denoted as U2, and the preset voltage range is [Umin, Umax], where Umin is the lower threshold and Umax is the upper threshold. If both the lowest cell voltage and the highest cell voltage are within the preset voltage range, that is, U1≥Umin and U2≤Umax, indicating that the cell voltages of all single cells of the fuel cell stack 11 are within the preset voltage range, it can be determined that the anodic hydrogen content of the fuel cell stack 11 meets the startup requirements of the air-cooled fuel cell.

[0072] If the lowest cell voltage is less than the lower threshold of the preset voltage range, that is, U1<Umin, and / or, the highest cell voltage is greater than the upper threshold of the preset voltage range, that is, U2>Umax, indicating that the cell voltages of the single cells of the fuel cell stack 11 exceed the preset voltage range and the cell voltages have not reached the stable state, so it can be determined that the anodic hydrogen content of the fuel cell stack 11 does not meet the startup requirements of the air-cooled fuel cell.

[0073] In one embodiment, when the hydrogen content at the anode of the fuel cell stack 11 does not meet the startup requirement of the air-cooled fuel cell, the hydrogen inlet pipeline is closed and the air-cooled fuel cell is restarted, and the step of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the startup signal is re-executed until the step of determining whether the hydrogen content at the anode of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell based on the cell voltage of each single cell constituting the fuel cell stack 11 includes:

[0074] When the anode hydrogen content of the fuel cell stack 11 does not meet the startup requirement of the air-cooled fuel cell, obtaining the restart purge number of the air-cooled fuel cell;

[0075] When the restart purge times are less than the preset times, the hydrogen inlet pipe is closed and the air-cooled fuel cell is restarted, and the step of sequentially opening the anode outlet pipe and the hydrogen inlet pipe according to the start signal is re-executed until the step of judging whether the anode hydrogen content of the fuel cell stack 11 meets the start-up requirements of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the fuel cell stack 11.

[0076] Specifically, if the hydrogen content at the anode of the stack 11 does not meet the startup requirements of the air-cooled fuel cell, the cause may be insufficient hydrogen purging, or a system failure in the air-cooled fuel cell. Even after multiple hydrogen purgings of the anode, the hydrogen content at the anode of the stack 11 will still not meet the startup requirements of the air-cooled fuel cell. Therefore, in order to prevent the waste of hydrogen, the anode will not be purged indefinitely. When it is determined that the hydrogen content at the anode of the stack 11 does not meet the startup requirements of the air-cooled fuel cell, the restart purge count of the air-cooled fuel cell needs to be obtained. The restart purge count refers to the number of purges from the time the startup signal is received to the current moment when the air-cooled fuel cell has not successfully started.

[0077] The preset number of times is used to limit the waste of hydrogen caused by excessive restart purges. The preset number of times can be 3, 5, 7, etc. In this embodiment, the preset number of times is 3. If the restart purge number is less than the preset number, the restart purge process can be continued, that is, the hydrogen inlet line is closed and the air-cooled fuel cell is restarted, and steps S210 to S230 are repeated.

[0078] In one embodiment, when the anode hydrogen content of the fuel cell stack 11 does not meet the startup requirement of the air-cooled fuel cell, after obtaining the restart purge times of the air-cooled fuel cell, the method further includes:

[0079] When the restart purge times are equal to the preset times, the air-cooled fuel cell is shut down.

[0080] Specifically, if the number of restart purges is equal to the preset number, it means that multiple anode hydrogen purges have been performed, but the anode hydrogen content still cannot meet the startup requirements of the air-cooled fuel cell, and it may not be caused by insufficient hydrogen purge, but by other reasons. In order to avoid wasting hydrogen by continuing the anode hydrogen purge, the air-cooled fuel cell is turned off and the hydrogen purge is stopped.

[0081] In one embodiment, when the purge duration reaches a preset duration, after determining whether the anode hydrogen content of the fuel cell stack 11 meets the startup requirements of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the fuel cell stack 11, the method further includes:

[0082] When the anode hydrogen content of the fuel cell stack 11 does not meet the startup requirement of the air-cooled fuel cell, closing the hydrogen intake pipeline and restarting the air-cooled fuel cell after a specified delay;

[0083] Using the updated preset duration, re-execute the step of sequentially opening the anode outlet pipe and the hydrogen inlet pipe in accordance with the start signal until the purge duration reaches the preset duration, and judging whether the anode hydrogen content of the fuel cell stack 11 meets the start-up requirement of the air-cooled fuel cell based on the cell voltage of each single cell constituting the fuel cell stack 11, wherein the updated preset duration is equal to the preset duration before the update minus the preset step size;

[0084] When the anode hydrogen content of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell, the anode gas outlet pipeline is closed and the cathode fan 13 is turned on to successfully start the air-cooled fuel cell.

[0085] Specifically, during the startup of a hydrogen fuel cell, the anode must first be purged with hydrogen to expel impurity gases so that the anode cavity is covered with a certain amount of hydrogen. If the fuel cell system has been shut down for a short time, there will be less non-hydrogen gas and impurities in the anode cavity, and the purging time required for restarting will be shorter; if the fuel cell system has been shut down for a long time, the time required for hydrogen purging of the anode will be relatively longer.

[0086] When the hydrogen content at the anode of the stack 11 does not meet the startup requirements of the air-cooled fuel cell, the hydrogen intake pipe is closed and the air-cooled fuel cell is restarted after a specified delay. The specified time can be 1 second, 2 seconds, 5 seconds, etc. In this embodiment, the specified time is 1 second, that is, when it is determined that the hydrogen content at the anode does not meet the startup requirements, the hydrogen intake pipe is closed, and the air-cooled fuel cell is automatically restarted after 1 second. After that, the anode will be purged with hydrogen for the next round. However, since the air-cooled fuel cell has been shut down for a short time, the time required for hydrogen purging at the anode is shorter. Therefore, the duration of hydrogen purging in this round can be shorter than the duration of hydrogen purging in the previous round, that is, the preset time is shortened and updated to obtain an updated preset time. The updated preset time is used to determine whether the purging time should be stopped. That is, when the purge time in this round reaches the updated preset time, the anode of the stack 11 is judged to be stopped based on the battery voltage of each single battery constituting the stack 11. Whether the anode hydrogen content meets the startup requirements of the air-cooled fuel cell, if not, the next round of hydrogen purge will be carried out, and the preset duration of the next round will be further shortened, that is, after each round of hydrogen purge, the duration of the next round of hydrogen purge will be shortened until the anode hydrogen content meets the startup requirements. In this way, the amount of hydrogen purged can be reduced in the last round of hydrogen purge before the startup requirements are met, further saving hydrogen and avoiding the problem of membrane electrode performance degradation due to drying of the membrane electrode due to too long purge.

[0087] In a specific embodiment, referring to Figure 3 Before starting the air-cooled fuel cell, manually open the shut-off valve 3, and then press the start button. After the air-cooled fuel cell system receives the start signal, it opens the anode outlet solenoid valve 88 and the anode inlet solenoid valve 44 in sequence, and hydrogen begins to purge the anode, replacing the non-hydrogen gas and impurities in the anode pipeline and the anode reaction chamber. After purging for 3 seconds, obtain the minimum and maximum sheet voltages. When the minimum sheet voltage is not lower than Umin and the maximum sheet voltage is not higher than Umax, close the hydrogen outlet solenoid valve 8, turn on the fan, and the air-cooled fuel cell startup is completed. If after purging for 3 seconds, the lowest sheet voltage obtained is lower than Umin or the highest sheet voltage is higher than Umax, the system automatically closes the anode air inlet solenoid valve 4, automatically restarts after 1 second, opens the anode air inlet solenoid valve 4, continues to purge for 3 seconds, and re-obtains the lowest sheet voltage and the highest sheet voltage. When the lowest sheet voltage is not lower than Umin and the highest sheet voltage is not higher than Umax, the hydrogen outlet solenoid valve 8 is closed, the fan is turned on, and the fuel cell startup is completed; conversely, if the lowest sheet voltage and the highest sheet voltage still do not meet the requirements, continue to execute the above operations, and automatically restart after 1 second. This restart action can be repeated no more than three times.

[0088] Figure 2 and Figure 3FIG. 1 is a flow chart of a method for starting an air-cooled fuel cell in one embodiment. It should be understood that although Figure 2 and Figure 3 The steps in the flowchart are shown in sequence as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. In addition, Figure 2 and Figure 3 At least part of the steps may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these sub-steps or stages is not necessarily sequential, but can be executed in turn or alternately with other steps or at least part of the sub-steps or stages of other steps.

[0089] In one embodiment, Figure 4 As shown, an air-cooled fuel cell starting device 10 is provided, comprising:

[0090] The switch control module 310 is configured to sequentially connect the anode gas outlet pipeline and the hydrogen gas inlet pipeline upon receiving a start signal of the air-cooled fuel cell;

[0091] The purge control module 320 is used to control the hydrogen in the hydrogen supply system 1 to purge the anode of the fuel cell stack 11 through the hydrogen inlet pipeline, and to accumulate the purge time;

[0092] The judgment module 330 is used to judge whether the anode hydrogen content of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell according to the battery voltage of each single cell constituting the fuel cell stack 11 when the purge time reaches a preset time;

[0093] a restart module 340 for closing the hydrogen inlet pipe and restarting the air-cooled fuel cell when the hydrogen content at the anode of the fuel cell stack 11 does not meet the startup requirement of the air-cooled fuel cell, and re-executing the step of sequentially opening the anode outlet pipe and the hydrogen inlet pipe according to the startup signal until the purge time reaches a preset time, and then judging whether the hydrogen content at the anode of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell based on the cell voltage of each single cell constituting the fuel cell stack 11;

[0094] The starting module 350 is used to close the anode outlet pipeline and start the cathode fan 13 when the anode hydrogen content of the fuel cell stack 11 meets the starting requirement of the air-cooled fuel cell, so as to successfully start the air-cooled fuel cell.

[0095] In one embodiment, the determination module 330 is further configured to:

[0096] When the purge time reaches a preset time, obtaining the battery voltage of each single battery constituting the battery stack 11;

[0097] Selecting a lowest chip voltage with the smallest value and a highest chip voltage with the largest value from the plurality of battery voltages;

[0098] According to the comparison result between the minimum slice voltage, the maximum slice voltage and the preset voltage range, it is determined whether the anode hydrogen content of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell.

[0099] In one embodiment, the determination module 330 is further configured to:

[0100] When the minimum slice voltage and the maximum slice voltage are within the preset voltage range, determining that the anode hydrogen content of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell;

[0101] When the lowest slice voltage is less than the lower threshold of the preset voltage range, and / or the highest slice voltage is greater than the upper threshold of the preset voltage range, it is determined that the anode hydrogen content of the fuel cell stack 11 does not meet the startup requirement of the air-cooled fuel cell.

[0102] In one embodiment, the restart module 340 is further configured to:

[0103] When the anode hydrogen content of the fuel cell stack 11 does not meet the startup requirement of the air-cooled fuel cell, obtaining the restart purge number of the air-cooled fuel cell;

[0104] When the restart purge times are less than the preset times, the hydrogen inlet pipe is closed and the air-cooled fuel cell is restarted, and the step of sequentially opening the anode outlet pipe and the hydrogen inlet pipe according to the start signal is re-executed until the step of judging whether the anode hydrogen content of the fuel cell stack 11 meets the start-up requirements of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the fuel cell stack 11.

[0105] In one embodiment, the restart module 340 is further configured to:

[0106] When the restart purge times are equal to the preset times, the air-cooled fuel cell is shut down.

[0107] In one embodiment, the restart module 340 is further configured to:

[0108] When the anode hydrogen content of the fuel cell stack 11 does not meet the startup requirement of the air-cooled fuel cell, closing the hydrogen intake pipeline and restarting the air-cooled fuel cell after a specified delay;

[0109] Using the updated preset duration, re-execute the step of sequentially opening the anode outlet pipe and the hydrogen inlet pipe in accordance with the start signal until the purge duration reaches the preset duration, and judging whether the anode hydrogen content of the fuel cell stack 11 meets the start-up requirement of the air-cooled fuel cell based on the cell voltage of each single cell constituting the fuel cell stack 11, wherein the updated preset duration is equal to the preset duration before the update minus the preset step size;

[0110] When the anode hydrogen content of the fuel cell stack 11 meets the startup requirement of the air-cooled fuel cell, the anode gas outlet pipeline is closed and the cathode fan 13 is turned on to successfully start the air-cooled fuel cell.

[0111] like Figure 5 As shown, an embodiment of the present application provides an electric device, including a processor 711, a communication interface 712, a memory 713 and a communication bus 714, wherein the processor 711, the communication interface 712, and the memory 713 communicate with each other through the communication bus 714;

[0112] Memory 713, for storing computer programs;

[0113] The processor 711 is configured to implement the air-cooled fuel cell startup method provided by any one of the aforementioned method embodiments when executing the program stored in the memory 713 .

[0114] Those skilled in the art will understand that Figure 5 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the electrical equipment to which the solution of the present application is applied. The specific electrical equipment may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0115] In one embodiment, the air-cooled fuel cell starting device 10 provided in the present application can be implemented in the form of a computer program. The computer program can be used in Figure 5 The memory of the electric device can store various program modules constituting the air-cooled fuel cell starting device 10, such as: Figure 4 The switch control module 310, purge control module 320, judgment module 330, restart module 340 and start module 350 are shown. The computer program composed of each program module enables the processor to execute the air-cooled fuel cell start-up method of each embodiment of the present application described in this specification.

[0116] Figure 5 The electrical equipment shown can be Figure 4The switch control module 310 in the air-cooled fuel cell starting device 10 shown executes, upon receiving the starting signal of the air-cooled fuel cell, to sequentially open the anode outlet pipe and the hydrogen inlet pipe. The electrical equipment can control the hydrogen in the hydrogen supply system 1 to purge the anode of the stack 11 through the hydrogen inlet pipe through the purge control module 320, and accumulate the purge time. The electrical equipment can determine, through the judgment module 330, whether the anode hydrogen content of the stack 11 meets the starting requirement of the air-cooled fuel cell based on the battery voltage of each single cell constituting the stack 11 when the purge time reaches a preset time. The electrical equipment can execute, through the restart module 340, when the anode hydrogen content of the stack 11 does not meet the startup requirements of the air-cooled fuel cell, the steps of closing the hydrogen inlet pipeline and restarting the air-cooled fuel cell, and re-executing the steps of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the startup signal, and determining whether the anode hydrogen content of the stack 11 meets the startup requirements of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the stack 11 when the purge time reaches a preset time. The electrical equipment can execute, through the startup module 350, when the anode hydrogen content of the stack 11 meets the startup requirements of the air-cooled fuel cell, the steps of closing the anode outlet pipeline and turning on the cathode fan 13 to successfully start the air-cooled fuel cell.

[0117] An embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the air-cooled fuel cell startup method provided in any of the aforementioned method embodiments is implemented.

[0118] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of this embodiment.

[0119] Through the description of the above embodiments, those skilled in the art will clearly understand that each embodiment can be implemented using software plus a general-purpose hardware platform, or of course, hardware. Based on this understanding, the essence of the above technical solution, or the portion that contributes to the relevant technology, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, or an optical disk, and includes a number of instructions for causing an electrical device (such as a personal computer, server, or network device) to execute the methods described in various embodiments or certain portions of the embodiments.

[0120] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "comprise", "include", "contain" and "have" are inclusive and therefore specify the presence of stated features, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the specific order described or illustrated, unless the order of execution is clearly indicated. It should also be understood that additional or alternative methods may be used.

[0121] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A method for starting an air-cooled fuel cell, characterized in that: Applied to an air-cooled fuel cell, the air-cooled fuel cell includes a hydrogen supply system, a fuel cell stack, a hydrogen inlet pipeline, an anode outlet pipeline of the fuel cell stack, and a cathode fan. The hydrogen supply system is connected to the fuel cell stack through the hydrogen inlet pipeline, the fuel cell stack is also connected to the anode outlet pipeline, and the cathode fan is connected to the cathode air duct of the fuel cell stack. The method includes: Upon receiving a start-up signal of the air-cooled fuel cell, the anode gas outlet pipeline and the hydrogen gas inlet pipeline are sequentially connected; Controlling the hydrogen in the hydrogen supply system to purge the anode of the fuel cell stack through the hydrogen inlet pipeline, and accumulating the purge time; When the purge time reaches a preset time, judging whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell according to the cell voltage of each single cell constituting the fuel cell stack; When the hydrogen content at the anode of the stack does not meet the startup requirement of the air-cooled fuel cell, closing the hydrogen inlet pipeline and restarting the air-cooled fuel cell, and re-performing the step of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the startup signal until the purge time reaches a preset time, judging whether the hydrogen content at the anode of the stack meets the startup requirement of the air-cooled fuel cell based on the cell voltage of each single cell constituting the stack; When the hydrogen content of the anode of the fuel cell stack meets the startup requirement of the air-cooled fuel cell, the anode outlet pipeline is closed and the cathode fan is turned on to successfully start the air-cooled fuel cell.

2. The method according to claim 1, characterized in that When the purge time reaches a preset time, judging whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell according to the cell voltage of each single cell constituting the fuel cell stack includes: When the purge time reaches a preset time, obtaining the battery voltage of each single battery constituting the battery stack; Selecting a lowest chip voltage with the smallest value and a highest chip voltage with the largest value from the plurality of battery voltages; According to the comparison result between the minimum slice voltage, the maximum slice voltage and the preset voltage range, it is judged whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell.

3. The method according to claim 2, characterized in that The determining, based on a comparison result between the lowest slice voltage, the highest slice voltage, and a preset voltage range, whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell includes: When the minimum slice voltage and the maximum slice voltage are within the preset voltage range, determining that the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell; When the lowest slice voltage is less than the lower threshold of the preset voltage range, and / or the highest slice voltage is greater than the upper threshold of the preset voltage range, it is determined that the anode hydrogen content of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell.

4. The method according to claim 1, wherein When the hydrogen content at the anode of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell, the hydrogen inlet pipeline is closed and the air-cooled fuel cell is restarted, and the steps of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the startup signal are re-executed until the step of determining whether the hydrogen content at the anode of the fuel cell stack meets the startup requirement of the air-cooled fuel cell according to the cell voltage of each single cell constituting the fuel cell stack is determined, including: When the anode hydrogen content of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell, obtaining the restart purge number of the air-cooled fuel cell; When the restart purge times are less than the preset times, the hydrogen inlet pipeline is closed and the air-cooled fuel cell is restarted, and the steps of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline according to the start signal are re-executed until the step of judging whether the anode hydrogen content of the fuel cell stack meets the start-up requirements of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the fuel cell stack.

5. The method according to claim 4, characterized in that When the anode hydrogen content of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell, after obtaining the restart purge times of the air-cooled fuel cell, the method further includes: When the restart purge times are equal to the preset times, the air-cooled fuel cell is shut down.

6. The method according to claim 1, wherein When the purge duration reaches a preset duration, after determining whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell based on the cell voltages of the individual cells constituting the fuel cell stack, the method further includes: When the hydrogen content of the anode of the fuel cell stack does not meet the startup requirement of the air-cooled fuel cell, closing the hydrogen inlet pipeline and restarting the air-cooled fuel cell after a delay of a specified time; Using the updated preset time, re-execute the step of sequentially opening the anode outlet pipe and the hydrogen inlet pipe in accordance with the start signal until the purge time reaches the preset time, and judging whether the anode hydrogen content of the fuel cell stack meets the start-up requirement of the air-cooled fuel cell based on the cell voltage of each single cell constituting the fuel cell stack, wherein the updated preset time is equal to the preset time before the update minus the preset step size; When the hydrogen content of the anode of the fuel cell stack meets the startup requirement of the air-cooled fuel cell, the anode outlet pipeline is closed and the cathode fan is turned on to successfully start the air-cooled fuel cell.

7. An air-cooled fuel cell starting device, characterized in that: For implementing the air-cooled fuel cell startup method according to claim 1, the air-cooled fuel cell startup device comprises: a switch control module, configured to sequentially connect the anode gas outlet pipeline and the hydrogen gas inlet pipeline upon receiving a start signal of the air-cooled fuel cell; a purge control module, configured to control the hydrogen in the hydrogen supply system to purge the anode of the fuel cell stack through the hydrogen inlet pipeline, and to accumulate the purge time; a judgment module, configured to judge whether the anode hydrogen content of the fuel cell stack meets the startup requirement of the air-cooled fuel cell according to the cell voltage of each single cell constituting the fuel cell stack when the purge time reaches a preset time; a restart module, configured to, when the hydrogen content at the anode of the stack does not meet the startup requirement of the air-cooled fuel cell, close the hydrogen inlet pipeline and restart the air-cooled fuel cell, and re-execute the step of sequentially opening the anode outlet pipeline and the hydrogen inlet pipeline in accordance with the startup signal until the purge time reaches a preset time, and then, based on the cell voltages of the individual cells constituting the stack, determine whether the hydrogen content at the anode of the stack meets the startup requirement of the air-cooled fuel cell; The starting module is used to close the anode outlet pipeline and start the cathode fan when the anode hydrogen content of the fuel cell stack meets the starting requirements of the air-cooled fuel cell, so as to successfully start the air-cooled fuel cell.

8. An air-cooled fuel cell, characterized in that: The air-cooled fuel cell includes a fuel cell system and an air-cooled fuel cell starting device as described in claim 7, the fuel cell system includes a hydrogen supply system, a fuel cell stack, a hydrogen inlet pipeline, an anode outlet pipeline of the fuel cell stack, and a cathode fan, the hydrogen supply system is connected to the fuel cell stack through the hydrogen inlet pipeline, the fuel cell stack is also connected to the anode outlet pipeline, and the cathode fan is connected to the cathode air duct of the fuel cell stack.

9. An electrical device, characterized in that: The electrical equipment includes the air-cooled fuel cell according to claim 8.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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