Method and device for controlling fuel cell gas supply flow, computer equipment and medium

Abstract

The application discloses a kind of fuel cell gas supply flow control method, device, computer equipment and medium, fuel cell includes air compressor, switch unit and electric pile;Switch unit includes first switch valve, second switch valve and third switch valve;Wherein, the air outlet of air compressor is connected with the gas inlet of first gas supply pipeline and the gas inlet of second gas supply pipeline, first switch valve and electric pile are located on first gas supply pipeline, second switch valve is located on second gas supply pipeline, third switch valve is connected with the air outlet of first gas supply pipeline and the air outlet of second gas supply pipeline and is located on exhaust pipeline;The control method comprises: first, obtain the current load of fuel cell;Second, according to the opening and closing of first switch valve and second switch valve are adjusted according to current load.Adopt the technical scheme provided in the embodiment of the application, by the regulation and control of switch unit on first gas supply pipeline and second gas supply pipeline, realize the gas flow regulation of entering electric pile, and then guarantee the efficient work of fuel cell.

Description

Technical Field

[0001] This invention relates to the technical field of fuel cells, and in particular to a method, apparatus, computer equipment, and medium for controlling the gas supply flow rate of a fuel cell. Background Technology

[0002] When a high-power fuel cell engine is idling at low load, the air compressor operates at a relatively low speed, resulting in limited gas driving pressure. The internal structure of the cathode circuit in the fuel cell is complex, and the damping hysteresis characteristics during gas flow are quite pronounced. High-power fuel cell stacks typically have a large number of stacked cells and a long axial dimension. Under low driving pressure at the cathode, the consistency of the axial gas flow rate between individual cells is poor. This can easily lead to excessive flow at the front end, causing membrane dryness, while the back end, due to poor flowability, can only meet the basic flow rate, thus affecting the system's output performance. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a method, apparatus, computer equipment, and medium for controlling the gas supply flow of a fuel cell. By regulating the switching units on the first and second gas supply pipes in the fuel cell, the gas flow entering the fuel cell stack is adjusted, thereby ensuring the efficient operation of the fuel cell.

[0004] In a first aspect, an embodiment of the present invention provides a method for controlling the gas supply flow rate of a fuel cell, applied to a fuel cell, the fuel cell including an air compressor, a switching unit, and a fuel cell stack; the switching unit including a first switching valve, a second switching valve, and a third switching valve; wherein, the exhaust port of the air compressor is connected to the inlet of a first gas supply pipe and the inlet of a second gas supply pipe, the first switching valve and the fuel cell stack are located on the first gas supply pipe, the second switching valve is located on the second gas supply pipe, and the third switching valve is connected to the exhaust port of the first gas supply pipe and the exhaust port of the second gas supply pipe and is located on a discharge pipe; the control method includes:

[0005] Obtain the current load of the fuel cell;

[0006] Adjust the opening and closing of the first and second switching valves according to the current load.

[0007] Secondly, an embodiment of the present invention provides a control device for the gas supply flow rate of a fuel cell, applied to a fuel cell, wherein the fuel cell includes an air compressor, a switching unit, and a fuel cell stack; the switching unit includes a first switching valve, a second switching valve, and a third switching valve; wherein the exhaust port of the air compressor is connected to the inlet of a first gas supply pipe and the inlet of a second gas supply pipe, the first switching valve and the fuel cell stack are located on the first gas supply pipe, the second switching valve is located on the second gas supply pipe, and the third switching valve is connected to the exhaust port of the first gas supply pipe and the exhaust port of the second gas supply pipe and is located on a discharge pipe; the control device includes:

[0008] A load acquisition module is used to acquire the current load of the fuel cell;

[0009] The valve regulating module is used to regulate the opening and closing of the first switching valve and the second switching valve according to the current load.

[0010] Thirdly, an embodiment of the present invention provides a computer device, the computer device comprising:

[0011] One or more processors;

[0012] Storage device for storing one or more programs.

[0013] When the one or more programs are executed by the one or more processors, the one or more processors implement the fuel cell gas supply flow control method as described in any of the first aspects.

[0014] Fourthly, embodiments of the present invention provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the fuel cell gas supply flow control method as described in any of the first aspects.

[0015] This invention provides a method, apparatus, computer equipment, and medium for controlling the gas supply flow of a fuel cell. The fuel cell includes an air compressor, a switching unit, and a fuel cell stack. The exhaust port of the air compressor is connected to the inlet of a first gas supply pipe and the inlet of a second gas supply pipe. A first switching valve of the switching unit and the fuel cell stack are located on the first gas supply pipe. A second switching valve of the switching unit is located on the second gas supply pipe. A third switching valve of the switching unit is connected to the exhaust ports of the first and second gas supply pipes and is located on the discharge pipe. The method for controlling the gas supply flow further includes: firstly, acquiring the current load of the fuel cell; then, adjusting the opening and closing of the first and second switching valves according to the current load. By regulating the switching units on the first and second gas supply pipes, the gas flow entering the fuel cell stack is regulated, thereby ensuring efficient operation of the fuel cell and also guaranteeing its output performance and service life. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of exemplary embodiments of the present invention, the accompanying drawings used in describing the embodiments are briefly introduced below. Obviously, the accompanying drawings described are only a portion of the drawings of the embodiments to be described in this invention, and not all of the drawings. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0017] Figure 1 This is a schematic flowchart of a gas supply flow control method provided in Embodiment 1 of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of a fuel cell provided in an embodiment of the present invention;

[0019] Figure 3 This is a schematic flowchart of a gas supply flow control method provided in Embodiment 2 of the present invention;

[0020] Figure 4 This is a schematic flowchart of a gas supply flow control method provided in Embodiment 3 of the present invention;

[0021] Figure 5 This is a schematic flowchart of a gas supply flow control method provided in Embodiment 4 of the present invention;

[0022] Figure 6 This is a schematic diagram of the structure of a fuel cell gas supply flow control device provided in Embodiment 5 of the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of a computer device provided in Embodiment Six of the present invention. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be fully described below with reference to the accompanying drawings in the embodiments of this invention, through specific implementation methods. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort fall within the protection scope of this invention.

[0025] Example 1

[0026] Figure 1 This is a flowchart illustrating a gas supply flow control method according to Embodiment 1 of the present invention. (Refer to...) Figure 1As shown, this embodiment can be applied to adjusting the gas supply to the air side or cathode side of a fuel cell. This method can be executed by the fuel cell gas supply flow control device in this embodiment, wherein the system can be implemented by software and / or hardware, and the system can be integrated into the fuel cell setup. The method specifically includes the following steps:

[0027] S110, Obtain the current load of the fuel cell.

[0028] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy; it is also known as an electrochemical generator. A fuel cell mainly consists of four parts: the anode, cathode, electrolyte, and external circuitry. The cathode circuit, or air side, typically consists of an air compressor, a fuel cell stack, and some valves connected in a simple series connection. The air compressor is the sole power source driving the supply of gas to the cathode stack. However, under low load or idling conditions, to prevent the fuel cell membrane from drying out, the air compressor generally operates at a lower speed. This results in lower cathode driving pressure, which can lead to poor consistency in the axial gas flow between cells in the stack. Specifically, there is a significant difference in flow rate between the gas inlet and outlet of the stack. This can cause excessive flow at the front end of the stack, leading to membrane drying, while the rear end, due to poor flowability, only meets the basic flow requirement, affecting system output performance. While increasing the compressor speed and drive pressure can improve the consistency of gas flow at the cathode, it also leads to higher flow rates at the cathode under low loads, exacerbating membrane dryness. Furthermore, the compressor consumes more energy, impacting the fuel cell system's output performance and lifespan. To ensure efficient fuel cell operation and prevent excessive energy consumption, the fuel cell structure can be adjusted. This involves adding gas supply lines and adapting them to the current load conditions to regulate the gas flow into the stack, thereby ensuring efficient fuel cell operation.

[0029] Furthermore, Figure 2 This is a schematic diagram of the structure of a fuel cell provided in an embodiment of the present invention, for reference. Figure 2As shown, the fuel cell 100 includes an air compressor 110, a switching unit 210, and a fuel cell stack 310; the switching unit 210 includes a first switching valve 211, a second switching valve 212, and a third switching valve 213; wherein, the exhaust port of the air compressor 110 is connected to the air inlet of the first air supply pipe c1 and the air inlet of the second air supply pipe c2, the first switching valve 211 and the fuel cell stack 310 are located on the first air supply pipe c1, the second switching valve 212 is located on the second air supply pipe c2, and the third switching valve 213 is connected to the exhaust port of the first air supply pipe c1 and the exhaust port of the second air supply pipe c2 and is located on the discharge pipe c4. Compared to a simple series connection, the fuel cell 100 provided in this embodiment of the invention adds a second gas supply pipe c2 to the cathode circuit, and adds corresponding valves to the first gas supply pipe c1 and the second gas supply pipe c2, thereby ensuring the regulation of the gas supply to the two pipes. This allows for adaptive adjustment of the overall gas supply as needed, ensuring improved consistency of other flow rates on both sides of the stack 310, and preventing the battery membrane from drying out. Adjusting the gas supply flow of different pipes according to demand avoids consuming more energy and has a beneficial impact on the overall output performance and lifespan of the fuel cell 100.

[0030] Specifically, to prevent the fuel cell membrane from drying out, the gas flow rate input to the first and second gas supply pipes needs to be adaptively adjusted under different loads. This also improves the consistency of gas supply before and after the fuel cell stack, ensuring the fuel cell's operating efficiency and performance. Therefore, it is necessary to first obtain the current load information of the fuel cell electric field before making adaptive adjustments.

[0031] S120. Adjust the opening and closing status of the first and second switching valves according to the current load.

[0032] Specifically, the first switching valve is located on the first gas supply pipeline. Controlling the opening and closing of the first switching valve regulates the flow rate of gas supplied to the first gas supply pipeline, i.e., adjusting the gas velocity and flow rate in the first gas supply pipeline. Similarly, the second switching valve is located on the second gas supply pipeline. Controlling the opening and closing of the second switching valve regulates the flow rate of gas supplied to the second gas supply pipeline, i.e., adjusting the gas velocity and flow rate in the second gas supply pipeline. Furthermore, the opening and closing status of the first and second switching valves can refer to the valve's on / off state or the degree of valve opening. The valve's on / off state controls whether gas is supplied to the pipeline where the valve is located, while the degree of valve opening controls the magnitude and velocity of the gas flow rate in the pipeline where the valve is located.

[0033] In summary, the fuel cell gas supply flow control method provided in this embodiment of the invention first obtains the current load of the fuel cell; then, it adjusts the opening and closing of the first and second switching valves according to the current load. By regulating the switching units on the first and second gas supply pipes, the gas flow rate entering the fuel cell stack is regulated, thereby ensuring the efficient operation of the fuel cell, while also guaranteeing the output performance and service life of the fuel cell.

[0034] Example 2

[0035] Figure 3 This is a flowchart illustrating a gas supply flow control method according to Embodiment 2 of the present invention. (Refer to...) Figure 3 As shown, this second embodiment refines the above embodiment, specifically detailing how to determine the adjustment of the first and second switching valves. In this embodiment, the method specifically includes the following steps:

[0036] S210, Obtain the current load of the fuel cell.

[0037] S220. Determine if the current load is less than the preset load. If not, execute S230; if so, execute S240.

[0038] The preset load refers to the standard load condition set for the fuel cell. When the current load of the fuel cell is less than the preset load, the current load condition is determined to be low, and the corresponding fuel cell engine is in an idling state. Specifically, the set standard load value varies depending on the type and specification of the fuel cell; this embodiment of the invention does not limit the specific value. In the processor controlling the gas supply flow, only one standard load condition is pre-stored; the preset load can be considered a pre-set judgment standard. When the current load is lower than the preset load, the gas supply flow rate of different pipelines can be adjusted according to the judgment result.

[0039] S230, control the first switching valve to open and control the second switching valve to close.

[0040] Specifically, when the current load is not less than the preset load, it indicates that the fuel cell is not operating under low load. Therefore, the required gas supply to the fuel cell stack is increased compared to a low-load small fuel cell stack. This means that the gas supplied by the air compressor can be evenly distributed to the fuel cell stack, ensuring its normal operation. Consequently, the first switching valve can be opened, and the second switching valve can be closed. This means that all the gas supplied by the air compressor as the power source is delivered to the fuel cell stack through the inlet of the first gas supply pipe, while the second gas supply pipe is not used, ensuring that the fuel cell stack receives sufficient gas.

[0041] S240, controls both the first and second switching valves to be turned on.

[0042] Specifically, when the current load is less than the preset load, it indicates that the fuel cell is operating under low load. Because the required gas supply to the stack is relatively small, the gas supplied by the air compressor does not need to be uniformly transmitted to the stack. This ensures the normal operation of the fuel cell while preventing excessive gas supply from causing the cell membrane to dry out. Furthermore, under low load conditions, the air supply from the air compressor is not reduced, effectively ensuring flow uniformity on both sides of the stack. By adjusting the first switching valve to open, the second switching valve also opens. This means that part of the gas supplied by the air compressor as a power source is delivered to the stack through the inlet of the first gas supply pipe, while part is diverted through the second gas supply pipe. This ensures the stack receives sufficient gas while preventing the cell membrane from drying out and improving flow uniformity on both sides of the stack.

[0043] S250. Determine if the current load is less than the first sub-preset load. If not, execute S260. If yes, execute S270.

[0044] In the fuel cell gas supply flow control method provided in this embodiment of the invention, the gas supply flow is adjusted adaptively based on the current load of the fuel cell, thereby ensuring the working efficiency and effect of the fuel cell. That is, there is a certain relationship between the gas supply flow and the load, and the gas supply is reflected in the adjustment state of the valve.

[0045] The first preset load refers to the load condition under normal operation when the opening degree of the first switching valve in the fuel cell is equal to that of the second switching valve. Specifically, the first and second switching valves are used to regulate the flow rate of gas into the first and second gas supply pipes, respectively. By combining different fuel cell load conditions, the gas supply volume of different pipes can be adjusted more precisely, thereby achieving fine adjustment of the gas supply flow rate, better ensuring the efficient operation of the fuel cell, and also more effectively ensuring the output performance and service life of the fuel cell.

[0046] S260, Control the opening degree of the first switching valve to be greater than the opening degree of the second switching valve.

[0047] Specifically, when the current load is greater than the first sub-preset load, the opening and closing states of the corresponding first and second switching valves can be different; when the current load is the same as the first sub-preset load, the opening and closing states of the corresponding first and second switching valves can be the same.

[0048] Furthermore, taking the case where the current load is greater than the first sub-preset load as an example, it can be demonstrated that although the current load is at a relatively low level, it is still greater than the first sub-preset load. Specifically, regarding the regulation of the pipeline in the fuel cell, the gas supply in the first gas supply pipeline can be increased when the fuel cell load is relatively high, and the gas supply in the first gas supply pipeline can be increased when the fuel cell load is relatively low, thereby ensuring the overall working effect and efficiency of the fuel cell. In other words, when the current load is greater than the first sub-preset load, the corresponding pipeline adjustment can be such that the gas supply in the first gas supply pipeline is increased relative to the first sub-preset load, while the gas supply in the second gas supply pipeline is decreased. The corresponding valve, i.e., the opening degree of the first switching valve, is greater than the opening degree of the second switching valve, thereby achieving more precise regulation.

[0049] S270, Control the opening degree of the first switching valve to be less than the opening degree of the second switching valve.

[0050] Specifically, when the current load is less than the first sub-preset load, the opening and closing states of the corresponding first switching valve and the second switching valve can be different.

[0051] Furthermore, taking the case where the current load is less than the first sub-preset load as an example, it can be demonstrated that the current load is a low load state and is also less than the first sub-preset load. Specifically, regarding the regulation of the pipeline in the fuel cell, when the fuel cell load is relatively small, the gas supply in the first gas supply pipeline can be reduced, thereby ensuring the overall working effect and efficiency of the fuel cell. In other words, when the current load is less than the first sub-preset load, the corresponding pipeline adjustment can be to reduce the gas supply in the first gas supply pipeline relative to the first sub-preset load, while increasing the gas supply in the second gas supply pipeline. The corresponding valve, i.e., the opening degree of the first switching valve, is less than the opening degree of the second switching valve, thereby achieving more precise regulation.

[0052] In summary, the fuel cell gas supply flow control method provided in this embodiment of the invention further adjusts the opening and closing states of the first and second switching valves according to the current load of the fuel cell, that is, further adjusts the fine adjustment of the gas supply flow in the first and second gas supply pipelines, thereby achieving fine overall control of the fuel cell.

[0053] Example 3

[0054] Figure 4 This is a flowchart illustrating a gas supply flow control method according to Embodiment 3 of the present invention. (Refer to...) Figure 4As shown, this third embodiment further refines the above embodiments, specifically detailing how to determine the adjustment of the first and second switching valves. In this embodiment, the method specifically includes the following steps:

[0055] S310, Obtain the current load of the fuel cell.

[0056] S320. Determine if the current load is less than the preset load. If not, execute S330; if so, execute S350.

[0057] S330, control the first switching valve to open and control the second switching valve to close.

[0058] S340. Adjust the opening and closing status of the third switching valve according to the current load.

[0059] Furthermore, when the current load is not less than the preset load, the first switching valve is opened and the second switching valve is closed. This means that all the gas supplied by the air compressor as the power source is delivered to the fuel cell stack through the inlet of the first air supply pipe, and the second air supply pipe is not used at this time, ensuring that the fuel cell stack receives sufficient air supply. The switching unit also includes a third switching valve, whose opening and closing state regulates the gas flow rate in the discharge pipe. Specifically, the power supplied by the first air supply pipe is converted into power in the fuel cell stack. Based on the fuel cell stack's operating state, there is a difference between the gas flow rate entering and leaving the fuel cell stack. The operating state of the fuel cell stack is also related to the current load of the fuel cell; a larger load results in a greater difference between the amount of gas entering and leaving the fuel cell stack. Therefore, the opening and closing state of the third switching valve is further adjusted according to the fuel cell load to further ensure the fuel cell's operational stability and efficiency.

[0060] S350 controls both the first and second switching valves to be turned on.

[0061] S360. Adjust the opening and closing status of the third switching valve according to the current load.

[0062] Furthermore, when the current load is less than the preset load, both the first and second switching valves are turned on. This means that part of the gas supplied by the air compressor as a power source is delivered to the fuel cell stack through the inlet of the first air supply pipe, while part flows into the second air supply pipe. This ensures the fuel cell stack receives sufficient gas supply without generating negative pressure, maintaining flow uniformity and preventing the battery membrane from drying out. The switching unit also includes a third switching valve, whose opening and closing state regulates the gas flow rate in the discharge pipe. Specifically, the power supplied from the first air supply pipe is converted into power in the fuel cell stack. Based on the fuel cell stack's operating state, there is a difference between the gas flow rate entering and leaving the stack. The fuel cell stack's operating state is also related to the current load of the fuel cell; a higher load results in a greater difference between the amount of gas entering and leaving the stack. Therefore, the opening and closing state of the third switching valve is further adjusted according to the fuel cell load to further ensure the fuel cell's operational stability and efficiency.

[0063] In summary, the fuel cell gas supply flow control method provided in this embodiment of the invention regulates the gas flow rate on the discharge pipe by adjusting the opening and closing state of the third switching valve, thereby further ensuring the working stability and efficiency of the fuel cell.

[0064] Example 4

[0065] Figure 5 This is a flowchart illustrating a gas supply flow control method according to Embodiment 4 of the present invention. (Refer to...) Figure 5 As shown, this fourth embodiment further refines the above embodiments, specifically detailing how to determine the adjustment of the first and second switching valves. In this embodiment, the method specifically includes the following steps:

[0066] S410: Obtain the current load of the fuel cell.

[0067] S420. Determine if the current load is less than the preset load. If not, execute S430; if yes, execute S450.

[0068] S430, control the first switching valve to open and control the second switching valve to close.

[0069] S440, controls the opening of the first air intake and the first exhaust port.

[0070] Among them, reference Figure 2As shown, the switching unit 200 of the fuel cell 100 also includes a three-way valve 214, which includes a first air inlet 214A, a first exhaust port 214B, and a second exhaust port 214C. The first air inlet 214A is connected to the fuel cell stack 310, and the first exhaust port 214B is connected to a third switching valve 213. The first air inlet 214A and the first exhaust port 214B are located on the first air supply pipe c1. The second exhaust port 214C is connected to the second switching valve 212 and is located on the air supply branch c3, which is connected to the second air supply pipe c2. In other words, by setting the three-way valve 214 on the switching unit 200 and controlling the opening and closing states of its different ports, the operating states of the two pipeline paths can be adjusted.

[0071] Specifically, control the opening of the first air intake and the first exhaust port, that is... Figure 2 The first air inlet 214A and the first exhaust port 214B are connected, so that the gas in the first air supply pipeline c1 can be directly discharged through the exhaust pipeline c4. That is, only the first air supply pipeline c1 is working and the second air supply pipeline c2 is not working. It also provides feedback that the first switch valve 211 is open and the second switch valve 212 is closed.

[0072] S450 controls both the first and second switching valves to be turned on.

[0073] S460, controls the opening of the first air intake and the second exhaust port.

[0074] Specifically, control the opening of the first air intake and the first exhaust port, that is... Figure 2 The first air inlet 214A and the second exhaust port 214C are connected, allowing gas from the first air supply line c1 to be discharged through the air supply branch c3, and gas discharged from the second air supply line c2 to be discharged together through the exhaust pipe c4. This indicates that both the first and second air supply lines c1 and c2 are operating, and also reflects the operating status of both the first and second switching valves 211 and 212 being open. By adding a three-way valve 214 and adjusting the operating status of different ports, two different operating modes can be switched, thereby simplifying the air supply line setup and reducing the space occupied by the pipeline.

[0075] S470, control the air extraction port to extract gas from the first gas supply pipeline.

[0076] Further reference Figure 2As shown, the fuel cell 100 also includes an ejector 410, which includes an inlet 410A, an outlet 410B, and an outlet 410C. The inlet 410A is connected to the second switching valve 212 and is located on the second gas supply pipe c2. The outlet 410B is connected to the second outlet 214C and is located on the gas supply branch c3. The outlet 410C is connected to the third switching valve 213 and is located on the outlet pipe c4. Specifically, when the ejector 410 receives gas at the inlet 410A, its outlet 410B operates, extracting gas from the gas supply branch c2, which improves the flow of gas in the first gas supply pipe c1. That is, when the fuel cell operates under low load, the supplied gas in the first gas supply pipe c1 achieves a "push-pull" driving mode, improving the gas flow force of the fuel cell stack 310 at low flow rates.

[0077] In general, the fuel cell gas supply flow control method provided in this embodiment of the invention can switch between two different working modes by adding a three-way valve, thereby simplifying the setting of the gas supply pipeline and reducing the space occupied by the pipeline; furthermore, by setting an ejector, it is beneficial for the gas supplied to the fuel cell to achieve a "push-pull" driving mode in the first gas supply pipeline when the fuel cell is working under low load, thereby improving the gas flow force of the stack at low flow rates.

[0078] Example 5

[0079] Figure 6 This is a schematic diagram of a fuel cell gas supply flow control device provided in Embodiment 5 of the present invention. The device can be applied to products with fuel cells, and the device can be implemented by software and / or hardware.

[0080] like Figure 6 As shown, the fuel cell gas supply flow control device 10 includes a load acquisition module 20 and a valve adjustment module 30.

[0081] The load acquisition module 20 is used to acquire the current load of the fuel cell.

[0082] The valve regulating module 30 is used to regulate the opening and closing of the first and second switching valves according to the current load.

[0083] The fuel cell gas supply flow control device provided in this embodiment of the invention includes a load acquisition module to acquire the current load of the fuel cell; and a valve adjustment module to adjust the opening and closing of the first and second switching valves according to the current load. By controlling the switching units on the first and second gas supply pipelines, the gas flow rate entering the fuel cell stack is regulated, thereby ensuring the efficient operation of the fuel cell and also ensuring the output performance and service life of the fuel cell.

[0084] Example 6

[0085] Figure 7 This is a schematic diagram of the structure of a computer device provided in Embodiment Six of the present invention, as shown below. Figure 7 As shown, the computing device provided in this embodiment of the invention includes: one or more processors 41 and a storage device 42; the processors 41 in the device may be one or more. Figure 7 Taking a processor 41 as an example; storage device 42 is used to store one or more programs; one or more programs are executed by one or more processors 41, so that one or more processors 41 implement the fuel cell gas supply flow control method as in any of the embodiments of the present invention.

[0086] The processor 41, storage device 42, input device 43, and output device 44 in the device can be connected via a bus or other means. Figure 7 Taking the example of a connection between China and Israel via a bus.

[0087] The storage device 42 in this device serves as a computer-readable storage medium, which can be used to store one or more programs. These programs can be software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the fuel cell gas supply flow control method provided in this embodiment of the invention (e.g., attached...). Figure 6 The fuel cell gas supply flow control device 10 shown includes a load acquisition module 20 and a valve adjustment module 30. The processor 41 executes various functional applications and data processing of the terminal device by running software programs, instructions, and modules stored in the storage device 42, thereby realizing the fuel cell gas supply flow control method in the above method embodiment.

[0088] Storage device 42 may include a stored program area and a stored data area, wherein the stored program area may store the operating system and applications required for at least one function; the stored data area may store data created based on the use of the device, etc. Furthermore, storage device 42 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, storage device 42 may further include memory remotely located relative to processor 41, and this remote memory may be connected to the device via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0089] Input device 43 can be used to receive input digital or character information, and to generate key signal inputs related to user settings and function control of the device. Output device 44 may include display devices such as a display screen.

[0090] Furthermore, when one or more programs included in the aforementioned device are executed by one or more processors 41, the programs perform the following operations: obtain the current load of the fuel cell; and adjust the opening and closing of the first and second switching valves according to the current load.

[0091] Example 7

[0092] Embodiment 7 of the present invention provides a computer-readable storage medium storing a computer program thereon. When executed by a processor, the program is used to perform a method for controlling the gas supply flow of a fuel cell. The method includes: obtaining the current load of the fuel cell; and adjusting the opening and closing of a first switching valve and a second switching valve according to the current load.

[0093] Optionally, when executed by a processor, the program can also be used to execute the fuel cell gas supply flow control method provided in any embodiment of the present invention.

[0094] The computer storage medium of this invention can be any combination of one or more computer-readable media. A computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium can be, for example,—but not limited to—an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection having one or more wires, a portable computer disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), flash memory, optical fiber, a portable CD-ROM, an optical storage device, a magnetic storage device, or any suitable combination thereof. A computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0095] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. Computer-readable signal media may also be any computer-readable medium other than computer-readable storage media, which can send, propagate, or transmit programs for use by or in connection with an instruction execution system, apparatus, or device.

[0096] Program code contained on a computer-readable medium may be transmitted using any suitable medium, including but not limited to: wireless, wire, optical fiber, radio frequency (RF), etc., or any suitable combination thereof.

[0097] Computer program code for performing the operations of this invention can be written in one or more programming languages ​​or a combination thereof. Programming languages ​​include object-oriented programming languages—such as Java, Smalltalk, and C++—as well as conventional procedural programming languages—such as the "C" language or similar programming languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0098] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A method for controlling the gas supply flow rate of a fuel cell, applied to a fuel cell, wherein the fuel cell includes an air compressor, a switching unit, and a fuel cell stack; the switching unit includes a first switching valve, a second switching valve, and a third switching valve; wherein, The air compressor's exhaust port is connected to the inlet of a first air supply pipe and the inlet of a second air supply pipe. The first switching valve and the fuel cell stack are located on the first air supply pipe, the second switching valve is located on the second air supply pipe, and the third switching valve is connected to the exhaust port of the first air supply pipe and the exhaust port of the second air supply pipe and is located on the discharge pipe. The control method includes: Obtain the current load of the fuel cell; Adjust the opening and closing status of the first and second switching valves according to the current load; Adjusting the opening and closing status of the first and second switching valves according to the current load includes: Determine whether the current load is less than a preset load, wherein the preset load is the standard load condition set for the fuel cell; If not, then control the first switching valve to open and control the second switching valve to close; If so, then both the first and second switching valves are turned on. Controlling both the first switching valve and the second switching valve to be open also includes: Determine whether the current load is less than the first sub-preset load, wherein, under the first sub-preset load, the opening degree of the first switch valve is adjusted to be equal to the opening degree of the second switch valve; If not, then the opening degree of the first switching valve is controlled to be greater than the opening degree of the second switching valve; If so, the opening degree of the first switching valve is controlled to be less than that of the second switching valve; Controlling both the first switching valve and the second switching valve to be open also includes: Adjust the opening and closing of the third switching valve according to the current load.

2. The control method according to claim 1, characterized in that, The method of controlling the first switching valve to open and the second switching valve to close also includes: Adjust the opening and closing of the third switching valve according to the current load.

3. The control method according to claim 1, characterized in that, The switching unit further includes a three-way valve, which includes a first air inlet, a first exhaust port, and a second exhaust port; wherein the first air inlet is connected to the fuel cell stack, the first exhaust port is connected to the third switching valve, and the first air inlet and the first exhaust port are located on the first air supply pipeline; the second exhaust port is connected to the second switching valve, and the second exhaust port is located on an air supply branch, which is connected to the second air supply pipeline; characterized in that, The method of controlling the first switching valve to open and the second switching valve to close further includes: Control the opening of the first air inlet and the first exhaust outlet; Controlling both the first switching valve and the second switching valve to be open also includes: Control the opening of the first air inlet and the second exhaust outlet.

4. The control method according to claim 3, characterized in that, The fuel cell further includes an ejector, which includes an air inlet, an air extraction port, and an air exhaust port; wherein the air inlet is connected to the second switching valve and is located on the second air supply pipe; the air extraction port is connected to the second exhaust port and is located on the air supply branch; the exhaust port is connected to the third switching valve and is located on the discharge pipe; characterized in that; The system controls the opening of the first air intake and the second exhaust port, and then includes: The air extraction port is controlled to draw gas from the first gas supply pipeline.

5. A control device for the gas supply flow rate of a fuel cell, applied to a fuel cell, the fuel cell comprising an air compressor, a switching unit, and a fuel cell stack; the switching unit comprising a first switching valve, a second switching valve, and a third switching valve; wherein, The exhaust port of the air compressor is connected to the inlet of the first air supply pipe and the inlet of the second air supply pipe. The first switching valve and the fuel cell stack are located on the first air supply pipe. The second switching valve is located on the second air supply pipe. The third switching valve is connected to the exhaust port of the first air supply pipe and the exhaust port of the second air supply pipe and is located on the discharge pipe. The control is performed using the fuel cell gas supply flow control method as described in any one of claims 1-4, characterized in that the control device comprises: A load acquisition module is used to acquire the current load of the fuel cell; The valve regulating module is used to regulate the opening and closing of the first switching valve and the second switching valve according to the current load.

6. A computer device, characterized in that, The computer device includes: One or more processors; Storage device for storing one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors implement the fuel cell gas supply flow control method as described in any one of claims 1-4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the fuel cell gas supply flow control method as described in any one of claims 1-4.

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