Power adjusting method and system of hydrogen fuel cell stack

Abstract

The invention discloses a power regulation method and system for a hydrogen fuel cell stack, and relates to the technical field of fuel cells, electrode pressure parameters and a hydrogen stoichiometric ratio of the hydrogen fuel cell stack are obtained, opening degree optimization processing is performed on the electrode pressure parameters through an opening degree regulation module, and an opening degree regulation instruction is obtained; rotating speed optimization processing is conducted on the hydrogen stoichiometric ratio through a rotating speed adjusting module, a rotating speed adjusting instruction is obtained, power adjustment is conducted on the hydrogen fuel cell stack through the opening adjusting instruction and the rotating speed adjusting instruction, and target power is obtained. The technical problems that in the prior art, the power of the hydrogen fuel cell stack is mainly adjusted through a proportional-integral-differential controller, but in a complex operation environment, the controller is difficult to avoid being influenced by random noise, so that the control performance of the controller is reduced, and the operation reliability of the hydrogen fuel emergency power supply vehicle is reduced are solved.

Description

Technical Field

[0001] The present invention relates to the field of fuel cell technology, and in particular to a power regulation method and system for a hydrogen fuel cell stack. Background Art

[0002] In emergency power supply scenarios such as natural disasters, temporary power failures or maintenance, diesel generators are usually required for emergency power supply. However, as a traditional emergency power supply method, diesel generators have problems such as carbon emissions, exhaust pollution, and high operating noise, making it difficult to adapt to green, low-carbon, environmentally friendly, and sustainable emergency power supply and power supply guarantee scenarios. Hydrogen fuel cell emergency power supply vehicles have the remarkable characteristics of zero carbon emissions, no pollution, and low noise, filling the gap in large-capacity green and low-carbon emergency power supply. In the process of emergency power supply and power supply guarantee, it is necessary to ensure that the hydrogen fuel emergency power supply vehicle can provide the required continuous and stable electricity for important loads. Therefore, how to accurately adjust the power of the hydrogen fuel cell stack is one of the key factors for the successful implementation of power supply guarantee.

[0003] At present, the existing technology mainly adjusts the power of the hydrogen fuel cell stack through a proportional-integral-differential controller, but the proportional-integral-differential controller will inevitably be affected by random noise in a complex environment, which will lead to a decrease in its control performance, affecting the hydrogen fuel cell stack power supply vehicle's continuous and stable output capacity, and reducing the reliability of the hydrogen fuel emergency power supply vehicle's operation. Summary of the invention

[0004] The present invention provides a power regulation method and system for a hydrogen fuel cell stack, which solves the problem that the prior art mainly regulates the power of a hydrogen fuel cell stack through a proportional-integral-differential controller, but the proportional-integral-differential controller is inevitably affected by random noise in a complex environment, which will lead to a decrease in its control performance, affect the continuous and stable power output capability of the hydrogen fuel cell stack of a hydrogen fuel emergency power supply vehicle, and reduce the technical problem of reducing the reliability of the operation of the hydrogen fuel emergency power supply vehicle.

[0005] A first aspect of the present invention provides a power regulation method for a hydrogen fuel cell stack, comprising:

[0006] Obtaining electrode pressure parameters and hydrogen stoichiometric ratio of the hydrogen fuel cell stack, and inputting the electrode pressure parameters and hydrogen stoichiometric ratio into a preset power regulation model, wherein the power regulation model includes an opening regulation module and a speed regulation module;

[0007] The electrode pressure parameter is subjected to an opening optimization process by the opening adjustment module to obtain an opening adjustment instruction;

[0008] The speed adjustment module performs speed optimization processing on the hydrogen stoichiometric ratio to obtain a speed adjustment instruction;

[0009] The power of the hydrogen fuel cell stack is adjusted by the opening adjustment instruction and the speed adjustment instruction to obtain the target power.

[0010] Optionally, the electrode pressure parameters include anode pressure and cathode pressure, the opening adjustment module includes a first difference operator, a second difference operator and a first optimization controller, and the step of performing opening optimization processing on the electrode pressure parameters by the opening adjustment module to obtain the opening adjustment instruction includes:

[0011] Performing a difference operation on the anode pressure and the cathode pressure by the first difference operator to obtain an electrode pressure difference;

[0012] Performing a difference operation on a preset electrode pressure difference reference and the electrode pressure difference by the second difference operator to obtain a first difference;

[0013] The first optimization controller performs an opening adjustment operation on the first difference to obtain an opening adjustment instruction.

[0014] Optionally, the first optimization controller includes a first proportional controller, a second proportional controller, an integrator, a combined differentiator and an adder, and the step of performing an opening adjustment operation on the first difference by the first optimization controller to obtain an opening adjustment instruction includes:

[0015] Calibrate the first difference by the first proportional controller to obtain a first target value;

[0016] Proportionally controlling the first target value by the second proportional controller to obtain a first proportional value;

[0017] Performing an integration operation on the first target value by the integrator to obtain a first integral value;

[0018] Performing a combined differential operation on the first target value by the combined differentiator to obtain a first combined differential value;

[0019] The first proportional value, the first integral value and the first combined differential value are added by the adder to obtain an opening adjustment instruction.

[0020] Optionally, the speed regulating module includes a third difference operator and a second optimization controller, and the step of performing speed optimization processing on the hydrogen stoichiometric ratio by the speed regulating module to obtain a speed regulating instruction includes:

[0021] The third difference operator performs difference processing on a preset hydrogen stoichiometric ratio reference and the hydrogen stoichiometric ratio to obtain a second difference;

[0022] The second optimization controller performs a speed adjustment operation on the second difference to obtain a speed adjustment instruction.

[0023] Optionally, the step of adjusting the power of the hydrogen fuel cell stack by the opening adjustment instruction and the speed adjustment instruction to obtain the target power includes:

[0024] Sending the opening adjustment instruction to the proportional control valve associated with the hydrogen fuel cell stack, so that the proportional control valve executes in response to the opening adjustment instruction and outputs hydrogen after execution;

[0025] Inputting the speed adjustment instruction into a hydrogen circulation pump associated with the hydrogen fuel cell stack to obtain a target circulation pump;

[0026] The hydrogen is subjected to power regulation processing in sequence through the ejector associated with the hydrogen fuel cell stack, the target circulation pump and the hydrogen humidifier associated with the hydrogen fuel cell stack to obtain target hydrogen;

[0027] The target hydrogen gas is input into the hydrogen fuel cell stack to obtain a target power.

[0028] Optionally, it also includes:

[0029] Acquiring a load current of the hydrogen fuel cell stack, and inputting the load current into a preset air supply controller to obtain a first speed signal and a first opening signal;

[0030] By using the first speed signal and the first opening signal, an air supply system associated with the hydrogen fuel cell stack is optimized and controlled to obtain target air;

[0031] The target air is used to power regulate the hydrogen fuel cell stack.

[0032] A second aspect of the present invention provides a power regulation system for a hydrogen fuel cell stack, comprising:

[0033] An acquisition module, used to obtain electrode pressure parameters and hydrogen stoichiometric ratio of a hydrogen fuel cell stack, and input the electrode pressure parameters and hydrogen stoichiometric ratio into a preset power regulation model, wherein the power regulation model includes an opening regulation module and a speed regulation module;

[0034] An opening optimization module, used for performing opening optimization processing on the electrode pressure parameter through the opening adjustment module to obtain an opening adjustment instruction;

[0035] A speed optimization module, used for performing speed optimization processing on the hydrogen metering ratio through the speed regulation module to obtain a speed regulation instruction;

[0036] The power regulating module is used to regulate the power of the hydrogen fuel cell stack through the opening regulating instruction and the speed regulating instruction to obtain the target power.

[0037] A third aspect of the present invention provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the processor executes the steps of the power regulation method for a hydrogen fuel cell stack as described in any one of the above items.

[0038] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed, implements the power regulation method for a hydrogen fuel cell stack as described in any one of the above items.

[0039] A fifth aspect of the present invention provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions, wherein when the program instructions are executed by a computer, the computer executes the power regulation method of the hydrogen fuel cell stack as described in any one of the above items.

[0040] It can be seen from the above technical solutions that the present invention has the following advantages:

[0041] By obtaining the electrode pressure parameters and hydrogen stoichiometric ratio of the hydrogen fuel cell stack, and inputting the electrode pressure parameters and hydrogen stoichiometric ratio into the preset power regulation model, the opening regulation instruction and the speed regulation instruction for regulating the power control system associated with the hydrogen fuel cell stack are obtained. The power regulation model can also accurately analyze the electrode voltage parameters and the hydrogen stoichiometric ratio under the interference of random noise. The method overcomes the problem that the power of the hydrogen fuel cell stack is regulated by the proportional-integral-differential controller, but the proportional-integral-differential controller is inevitably affected by random noise in a complex environment, which will lead to a decrease in its control performance and affect the continuous and stable output capacity of the hydrogen fuel cell stack of the hydrogen fuel emergency power supply vehicle. Compared with the traditional power regulation method, the present invention is not affected by random noise during the power regulation of the hydrogen fuel cell stack, thereby improving the reliability of the operation of the hydrogen fuel emergency power supply vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0043] Figure 1A flowchart of a method for regulating power of a hydrogen fuel cell stack provided in Embodiment 1 of the present invention;

[0044] Figure 2 A flowchart of a method for regulating power of a hydrogen fuel cell stack provided in the second embodiment of the present invention;

[0045] Figure 3 A schematic diagram of the structure of a power regulation model provided in the second embodiment of the present invention;

[0046] Figure 4 A schematic diagram of the structure of an optimization controller provided in Embodiment 2 of the present invention;

[0047] Figure 5 A schematic diagram of phase-frequency comparison of a combined differentiator, an ideal differentiator and an actual differentiator provided in the second embodiment of the present invention;

[0048] Figure 6 A schematic diagram comparing the amplitude-frequency characteristics of a combined differentiator, an ideal differentiator and an actual differentiator provided in the second embodiment of the present invention;

[0049] Figure 7 A structural block diagram of a power regulation system for a hydrogen fuel cell stack provided in Embodiment 3 of the present invention;

[0050] Figure 8 This is a structural block diagram of an electronic device provided in Embodiment 4 of the present invention. DETAILED DESCRIPTION

[0051] The embodiment of the present invention provides a power regulation method and system for a hydrogen fuel cell stack, which is used to solve the problem that the prior art mainly regulates the power of the hydrogen fuel cell stack through a proportional-integral-differential controller, but the proportional-integral-differential controller will inevitably be affected by random noise in a complex environment, which will lead to a decrease in its control performance, affecting the continuous and stable output power of the hydrogen fuel cell stack of the hydrogen fuel emergency power supply vehicle, and reducing the technical problems of the operation of the hydrogen fuel emergency power supply vehicle.

[0052] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] See also Figure 1 , Figure 1 A flowchart of the steps of a power regulation method for a hydrogen fuel cell stack provided in Embodiment 1 of the present invention.

[0054] The present invention provides a power regulation method for a hydrogen fuel cell stack, comprising:

[0055] Step 101, obtaining electrode pressure parameters and hydrogen stoichiometric ratio of a hydrogen fuel cell stack, and inputting the electrode pressure parameters and hydrogen stoichiometric ratio into a preset power regulation model, wherein the power regulation model includes an opening regulation module and a speed regulation module;

[0056] The electrode pressure parameter refers to the anode pressure and cathode pressure of the hydrogen fuel cell stack.

[0057] In an embodiment of the present invention, the anode pressure, cathode pressure and hydrogen stoichiometric ratio of the hydrogen fuel cell stack are obtained, and the anode pressure, cathode pressure and hydrogen stoichiometric ratio of the hydrogen fuel cell stack are input into a preset power regulation model.

[0058] It should be noted that the hydrogen fuel cell stack is associated with a power control system, wherein the power control system includes an air supply system and a hydrogen supply system. The air supply system includes air filters, centrifugal air compressors, intercoolers, air humidifiers, back pressure valves, air supply pipelines and other main components. The hydrogen supply system includes hydrogen storage bottles, pressure reducing valves, proportional control valves, ejectors, hydrogen circulation pumps, hydrogen humidifiers, hydrogen supply pipelines and other main components.

[0059] Step 102, performing opening optimization processing on the electrode pressure parameter through the opening adjustment module to obtain an opening adjustment instruction;

[0060] In the embodiment of the present invention, the opening degree adjustment module performs an opening degree optimization operation on the anode pressure and the cathode pressure of the hydrogen fuel cell stack to obtain an opening degree adjustment instruction.

[0061] Step 103: The speed adjustment module performs speed optimization processing on the hydrogen metering ratio to obtain a speed adjustment instruction;

[0062] In the embodiment of the present invention, the hydrogen stoichiometric ratio is input into the speed regulating module to perform a speed optimization operation to obtain a speed regulating instruction.

[0063] Step 104: Power adjustment is performed on the hydrogen fuel cell stack through the opening adjustment instruction and the speed adjustment instruction to obtain the target power.

[0064] In the embodiment of the present invention, the power control system associated with the hydrogen fuel cell stack is regulated by the opening adjustment instruction and the speed adjustment instruction, so as to achieve power regulation of the hydrogen fuel cell stack and obtain the target power.

[0065] In an embodiment of the present invention, by obtaining the electrode pressure parameters and hydrogen stoichiometric ratio of the hydrogen fuel cell stack, and inputting the electrode pressure parameters and hydrogen stoichiometric ratio into a preset power regulation model, the opening regulation instruction and the speed regulation instruction for regulating the power control system associated with the hydrogen fuel cell stack are obtained, and the power regulation model can also accurately analyze the electrode voltage parameters and the hydrogen stoichiometric ratio under the interference of random noise. The problem that the power of the hydrogen fuel cell stack is regulated by a proportional-integral-differential controller, but the proportional-integral-differential controller is inevitably affected by random noise in a complex environment, which will lead to a decrease in its control performance and affect the technical problem of the continuous and stable output capacity of the hydrogen fuel cell stack of the hydrogen fuel emergency power supply vehicle is overcome. Compared with the traditional power regulation method, the present invention is not affected by random noise during the power regulation of the hydrogen fuel cell stack, thereby improving the reliability of the operation of the hydrogen fuel emergency power supply vehicle.

[0066] See also Figure 2 , Figure 2 A flow chart of the steps of a power regulation method for a hydrogen fuel cell stack provided in Embodiment 2 of the present invention.

[0067] The present invention provides a power regulation method for a hydrogen fuel cell stack, comprising:

[0068] Step 201, obtaining electrode pressure parameters and hydrogen stoichiometric ratio of a hydrogen fuel cell stack, and inputting the electrode pressure parameters and hydrogen stoichiometric ratio into a preset power regulation model, wherein the power regulation model includes an opening regulation module and a speed regulation module;

[0069] In the embodiment of the present invention, the electrode pressure parameters and hydrogen stoichiometric ratio of the hydrogen fuel cell stack are collected in real time, and the electrode pressure parameters and hydrogen stoichiometric ratio are input into a preset power regulation model.

[0070] Step 202: Performing opening optimization processing on the electrode pressure parameter through the opening adjustment module to obtain an opening adjustment instruction;

[0071] Further, see Figure 3 As shown, the electrode pressure parameters include anode pressure and cathode pressure, the opening adjustment module includes a first difference operator, a second difference operator and a first optimization controller, and step 202 includes the following sub-steps:

[0072] S11, performing a difference operation on the anode pressure and the cathode pressure by a first difference operator to obtain an electrode pressure difference;

[0073] In the embodiment of the present invention, the anode pressure and the cathode pressure are input into the first difference operator to perform difference operation to obtain the electrode pressure difference (ie, the cathode and cathode pressure difference).

[0074] S12, performing a difference operation on a preset electrode pressure difference reference and an electrode pressure difference by a second difference operator to obtain a first difference;

[0075] The electrode pressure difference standard refers to the anode and cathode pressure difference standard.

[0076] In the embodiment of the present invention, the preset electrode pressure difference reference and the electrode pressure difference are input into the second difference operator to perform difference operation to obtain the anode-cathode pressure difference deviation signal.

[0077] S13. Perform an opening adjustment operation on the first difference through the first optimization controller to obtain an opening adjustment instruction.

[0078] It should be noted that the transfer function of the first optimization controller is specifically:

[0079]

[0080] Among them, K P1 and K P2 are the first and second proportional control coefficients, T I is the time constant of the integrator, G CD (s) is the transfer function of the combined differentiator.

[0081] The transfer function G of the combined differential link CD (s) is expressed as:

[0082]

[0083] Among them, T CD is the time constant of the combined differential link; n is the order of the combined differential link, and 1 <n≤16。

[0084] Further, see Figure 4 As shown, the first optimization controller includes a first proportional controller, a second proportional controller, an integrator, a combined differentiator and an adder, and S13 includes the following sub-steps:

[0085] S131, calibrating the first difference by a first proportional controller to obtain a first target value;

[0086] In the embodiment of the present invention, the anode-cathode pressure difference deviation signal is input into the first proportional controller for calibration processing to obtain the first target value.

[0087] S132, performing proportional control on the first target value by a second proportional controller to obtain a first proportional value;

[0088] In the embodiment of the present invention, the first target value is input into the second proportional controller for proportional control to obtain a first proportional value.

[0089] S133, performing an integration operation on the first target value through an integrator to obtain a first integral value;

[0090] In the embodiment of the present invention, the first target value is input into the integrator for integration operation to obtain the first integral value.

[0091] S134, performing a combined differential operation on the first target value through a combined differentiator to obtain a first combined differential value;

[0092] In the embodiment of the present invention, the first target value is input into the combined differentiator to perform a combined differential operation to obtain a first combined differential value.

[0093] S135. Add the first proportional value, the first integral value and the first combined differential value through an adder to obtain an opening adjustment instruction.

[0094] In the embodiment of the present invention, the first proportional value, the first integral value and the first combined differential value are input into the adder for superposition processing to obtain the opening adjustment instruction.

[0095] Step 203: The speed adjustment module performs speed optimization processing on the hydrogen metering ratio to obtain a speed adjustment instruction;

[0096] Further, the speed regulation module includes a third difference operator and a second optimization controller, and step 203 includes the following steps:

[0097] S21, performing difference processing on a preset hydrogen stoichiometric ratio reference and the hydrogen stoichiometric ratio by a third difference operator to obtain a second difference;

[0098] In the embodiment of the present invention, the preset hydrogen stoichiometric ratio reference and the hydrogen stoichiometric ratio are input into the third difference operator to perform difference operation to obtain a hydrogen stoichiometric ratio deviation signal.

[0099] S22. Perform a speed adjustment operation on the second difference through a second optimization controller to obtain a speed adjustment instruction.

[0100] In the embodiment of the present invention, the hydrogen stoichiometric ratio deviation signal is input into the second optimization controller to perform a speed adjustment operation to obtain a speed adjustment instruction.

[0101] It should be noted that the first optimization controller and the second optimization controller are both optimization controllers, and their structures are the same, both of which are composed of a proportional controller, an integrator, a combined differentiator and an adder. Figure 4 shown.

[0102] Although the structures of the first optimization controller and the second optimization controller are the same, they play different roles in the control system of the present invention. The first optimization controller realizes the tracking of the reference value of the anode-cathode pressure difference, and the second optimization control module realizes the tracking of the reference value of the hydrogen stoichiometric ratio. The specific control parameters of the first and second optimization controllers are different and need to be set according to the debugging situation of the control system.

[0103] It is worth mentioning that in order to illustrate the anti-random noise capability of the combined differentiator, the phase-frequency and amplitude-frequency characteristics of the combined differentiator, the ideal differentiator and the actual differentiator are compared and analyzed.

[0104] The transfer function of an ideal differentiator is:

[0105]

[0106] Among them, T ID is the time constant of the ideal differentiator.

[0107] Since the ideal differentiator is physically unrealizable, the engineering field often reconstructs the ideal differentiator, that is, the actual differentiator. The transfer function of the actual differentiator is:

[0108]

[0109] Among them, T AD is the time constant of the actual differentiator.

[0110] If the order of the combined differentiator is set to n=8, its transfer function is:

[0111]

[0112] Among them, T CD is the time constant of the combined differential link.

[0113] Set the time constant of the combined differentiator, ideal differentiator and actual differentiator to 100s, that is, T CD =T ID =T AD = 100s. As a reference, the characteristics of an ideal differentiator are the best. Figure 5-Figure 6 As shown, for the combined differentiator, when the frequency ω is less than 0.08 rad / s, the combined differentiator is approximately an ideal differentiator, the phase is +90°, and the maximum phase error is +0.01° / -1.5°; relative to the actual differentiator, the differential performance of the combined differentiator is significantly higher than that of the actual differentiator.

[0114] Step 204: Send the opening adjustment instruction to the proportional control valve associated with the hydrogen fuel cell stack, so that the proportional control valve responds to the opening adjustment instruction to execute and output the executed hydrogen;

[0115] In an embodiment of the present invention, an opening adjustment instruction is sent to a proportional control valve associated with a hydrogen fuel cell stack, so that the anode flow channel pressure and flow are adjusted by adjusting the opening of the proportional control valve.

[0116] Step 205: input the speed adjustment instruction into the hydrogen circulation pump associated with the hydrogen fuel cell stack to obtain a target circulation pump;

[0117] In an embodiment of the present invention, a speed regulation instruction is input into a hydrogen circulation pump associated with a hydrogen fuel cell stack, thereby obtaining a target circulation flow rate of the anode hydrogen supply circuit regulated by the circulation pump.

[0118] Step 206, performing power control processing on the hydrogen through the ejector associated with the hydrogen fuel cell stack, the target circulation pump and the hydrogen humidifier associated with the hydrogen fuel cell stack in sequence to obtain target hydrogen;

[0119] In an embodiment of the present invention, the hydrogen is regulated in sequence through an ejector, a target circulation pump and a hydrogen humidifier associated with a hydrogen fuel cell stack to obtain target hydrogen.

[0120] Step 207: Input the target hydrogen into the hydrogen fuel cell stack to obtain the target power.

[0121] In one embodiment, target hydrogen is input into the anode of the hydrogen fuel cell stack to generate an electrochemical reaction with oxygen contained in air input into the cathode to obtain target power.

[0122] Furthermore, a method for establishing cathode pressure is also included:

[0123] A1. Obtaining a load current of the hydrogen fuel cell stack, and inputting the load current into a preset air supply controller to obtain a first speed signal and a first opening signal;

[0124] In an embodiment of the present invention, the load current of the hydrogen fuel cell stack is obtained and input into a preset air supply controller, and the corresponding first speed signal and first opening signal are matched based on a load current-centrifugal air compressor speed-back pressure valve opening relationship correspondence table configured in the air supply controller.

[0125] A2. Optimizing and controlling the air supply system associated with the hydrogen fuel cell stack through the first speed signal and the first opening signal to obtain target air;

[0126] In an embodiment of the present invention, a centrifugal air compressor of an air supply system associated with a hydrogen fuel cell stack is regulated by a first speed signal, and a back pressure valve of the air supply system is regulated by a first opening signal to obtain target air.

[0127] A3. Power regulation of the hydrogen fuel cell stack is performed through target air.

[0128] In the embodiment of the present invention, the target air is input into the cathode of the hydrogen fuel cell stack, thereby establishing the cathode pressure of the hydrogen fuel cell stack.

[0129] In one embodiment, target air is input into the cathode of the hydrogen fuel cell stack to establish cathode pressure.

[0130] See also Figure 7 , Figure 7 This is a structural block diagram of a power regulation system for a hydrogen fuel cell stack provided in Example 3 of the present invention.

[0131] The present invention provides a power regulation system for a hydrogen fuel cell stack, comprising:

[0132] The acquisition module 301 is used to obtain the electrode pressure parameters and hydrogen stoichiometric ratio of the hydrogen fuel cell stack, and input the electrode pressure parameters and hydrogen stoichiometric ratio into a preset power regulation model, wherein the power regulation model includes an opening regulation module and a speed regulation module;

[0133] The opening optimization module 302 is used to perform opening optimization processing on the electrode pressure parameters through the opening adjustment module to obtain an opening adjustment instruction;

[0134] The speed optimization module 303 is used to perform speed optimization processing on the hydrogen metering ratio through the speed regulation module to obtain a speed regulation instruction;

[0135] The power regulation module 304 is used to regulate the power of the hydrogen fuel cell stack through the opening regulation instruction and the speed regulation instruction to obtain the target power.

[0136] Further, the electrode pressure parameters include anode pressure and cathode pressure, the opening adjustment module includes a first difference operator, a second difference operator and a first optimization controller, and the opening optimization module 302 includes:

[0137] The electrode pressure difference submodule is used to perform a difference operation on the anode pressure and the cathode pressure through a first difference operator to obtain the electrode pressure difference;

[0138] The electrode deviation submodule is used to perform a difference operation on a preset electrode pressure difference reference and an electrode pressure difference through a second difference operator to obtain a first difference;

[0139] The opening adjustment submodule is used to perform an opening adjustment operation on the first difference through a first optimization controller to obtain an opening adjustment instruction.

[0140] Furthermore, the first optimization controller includes a first proportional controller, a second proportional controller, an integrator, a combined differentiator and an adder, and the opening adjustment submodule includes:

[0141] A first proportional unit, used for calibrating the first difference through a first proportional controller to obtain a first target value;

[0142] A second proportional unit, used for performing proportional control on the first target value through a second proportional controller to obtain a first proportional value;

[0143] an integration unit, configured to perform an integration operation on the first target value through an integrator to obtain a first integral value;

[0144] A differential unit, used for performing a combined differential operation on the first target value through a combined differentiator to obtain a first combined differential value;

[0145] The adding unit is used to perform addition operation on the first proportional value, the first integral value and the first combined differential value through an adding operator to obtain an opening adjustment instruction.

[0146] Furthermore, the speed adjustment module includes a third difference operator and a second optimization controller, and the speed optimization module 303 includes:

[0147] A first difference submodule, configured to perform difference processing on a preset hydrogen stoichiometric ratio reference and the hydrogen stoichiometric ratio through a third difference operator to obtain a second difference;

[0148] The speed regulation submodule is used to perform a speed regulation operation on the second difference through a second optimization controller to obtain a speed regulation instruction.

[0149] Furthermore, the power regulation module 304 includes:

[0150] The opening control submodule is used to send the opening control instruction to the proportional control valve associated with the hydrogen fuel cell stack, so that the proportional control valve responds to the opening control instruction to execute and output the hydrogen after execution;

[0151] The speed control submodule inputs the speed control instruction into the hydrogen circulation pump associated with the hydrogen fuel cell stack to obtain the target circulation pump;

[0152] A power control submodule, used to sequentially perform power control processing on hydrogen through an ejector associated with the hydrogen fuel cell stack, a target circulation pump, and a hydrogen humidifier associated with the hydrogen fuel cell stack to obtain target hydrogen;

[0153] The target hydrogen is input into the hydrogen fuel cell stack to obtain the target power.

[0154] Furthermore, it also includes:

[0155] An air conditioning module, used for obtaining a load current of the hydrogen fuel cell stack, and inputting the load current into a preset air supply controller to obtain a first speed signal and a first opening signal;

[0156] Optimizing and controlling the air supply system associated with the hydrogen fuel cell stack through the first speed signal and the first opening signal to obtain target air;

[0157] Power regulation of hydrogen fuel cell stacks via target air.

[0158] See also Figure 8 , Figure 8 This is a structural block diagram of an electronic device provided in Embodiment 4 of the present invention.

[0159] An electronic device according to an embodiment of the present invention comprises: a memory 401 and a processor 402, wherein the memory 402 stores a computer program; when the computer program is executed by the processor 402, the processor 402 executes a power regulation method for a hydrogen fuel cell stack according to any of the above embodiments.

[0160] The memory 401 may be an electronic memory such as a flash memory, an EEPROM (electrically erasable programmable read-only memory), an EPROM, a hard disk or a ROM. The memory 401 has a storage space 403 for a program code 413 for executing any method step in the above method. For example, the storage space 403 for the program code may include individual program codes 413 for implementing the various steps in the above method, respectively. These program codes may be read from or written to one or more computer program products. These computer program products include program code carriers such as a hard disk, a compact disk (CD), a memory card or a floppy disk. The program code may be compressed, for example, in an appropriate form. When these codes are run by a computing and processing device, the computing and processing device is caused to execute the various steps in the above-described method.

[0161] Embodiment 5 of the present invention further provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the power regulation method of the hydrogen fuel cell stack as in any of the above embodiments is implemented.

[0162] Embodiment 6 of the present invention also provides a computer program product, which includes a computer program stored on a non-transitory computer-readable storage medium, and the computer program includes program instructions, wherein when the program instructions are executed by a computer, the computer executes a power regulation method for a hydrogen fuel cell stack as described in any of the above embodiments.

[0163] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0164] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0165] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0166] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0167] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods of each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0168] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power regulation method for a hydrogen fuel cell stack, characterized in that: include: Obtaining electrode pressure parameters and hydrogen stoichiometric ratio of the hydrogen fuel cell stack, and inputting the electrode pressure parameters and hydrogen stoichiometric ratio into a preset power regulation model, wherein the power regulation model includes an opening regulation module and a speed regulation module; The electrode pressure parameter is subjected to an opening optimization process by the opening adjustment module to obtain an opening adjustment instruction; The speed adjustment module performs speed optimization processing on the hydrogen stoichiometric ratio to obtain a speed adjustment instruction; The power of the hydrogen fuel cell stack is adjusted by the opening adjustment instruction and the speed adjustment instruction to obtain the target power.

2. The power regulation method of a hydrogen fuel cell stack according to claim 1, characterized in that: The electrode pressure parameters include anode pressure and cathode pressure, the opening adjustment module includes a first difference operator, a second difference operator and a first optimization controller, and the step of performing opening optimization processing on the electrode pressure parameters through the opening adjustment module to obtain an opening adjustment instruction includes: Performing a difference operation on the anode pressure and the cathode pressure by the first difference operator to obtain an electrode pressure difference; Performing a difference operation on a preset electrode pressure difference reference and the electrode pressure difference by the second difference operator to obtain a first difference; The first optimization controller performs an opening adjustment operation on the first difference to obtain an opening adjustment instruction.

3. The power regulation method of a hydrogen fuel cell stack according to claim 2, characterized in that: The first optimization controller includes a first proportional controller, a second proportional controller, an integrator, a combined differentiator and an adder. The step of performing an opening adjustment operation on the first difference by the first optimization controller to obtain an opening adjustment instruction includes: Calibrate the first difference by the first proportional controller to obtain a first target value; Proportionally controlling the first target value by the second proportional controller to obtain a first proportional value; Performing an integration operation on the first target value by the integrator to obtain a first integral value; Performing a combined differential operation on the first target value by the combined differentiator to obtain a first combined differential value; The first proportional value, the first integral value and the first combined differential value are added by the adder to obtain an opening adjustment instruction.

4. The power regulation method of a hydrogen fuel cell stack according to claim 1, characterized in that: The speed regulating module includes a third difference operator and a second optimization controller. The step of performing speed optimization processing on the hydrogen stoichiometric ratio by the speed regulating module to obtain a speed regulating instruction includes: The third difference operator performs difference processing on a preset hydrogen stoichiometric ratio reference and the hydrogen stoichiometric ratio to obtain a second difference; The second optimization controller performs a speed adjustment operation on the second difference to obtain a speed adjustment instruction.

5. The power regulation method of a hydrogen fuel cell stack according to claim 1, characterized in that: The step of adjusting the power of the hydrogen fuel cell stack by the opening adjustment instruction and the speed adjustment instruction to obtain the target power includes: Sending the opening adjustment instruction to the proportional control valve associated with the hydrogen fuel cell stack, so that the proportional control valve executes in response to the opening adjustment instruction and outputs hydrogen after execution; Inputting the speed adjustment instruction into a hydrogen circulation pump associated with the hydrogen fuel cell stack to obtain a target circulation pump; The hydrogen is subjected to power regulation processing in sequence through the ejector associated with the hydrogen fuel cell stack, the target circulation pump and the hydrogen humidifier associated with the hydrogen fuel cell stack to obtain target hydrogen; The target hydrogen gas is input into the hydrogen fuel cell stack to obtain a target power.

6. The power regulation method of a hydrogen fuel cell stack according to any one of claims 1 to 5, characterized in that: Also includes: Acquiring a load current of the hydrogen fuel cell stack, and inputting the load current into a preset air supply controller to obtain a first speed signal and a first opening signal; By using the first speed signal and the first opening signal, an air supply system associated with the hydrogen fuel cell stack is optimized and controlled to obtain target air; The target air is used to power regulate the hydrogen fuel cell stack.

7. A power regulation system for a hydrogen fuel cell stack, characterized in that: include: An acquisition module, used to obtain electrode pressure parameters and hydrogen stoichiometric ratio of a hydrogen fuel cell stack, and input the electrode pressure parameters and hydrogen stoichiometric ratio into a preset power regulation model, wherein the power regulation model includes an opening regulation module and a speed regulation module; An opening optimization module, used for performing opening optimization processing on the electrode pressure parameter through the opening adjustment module to obtain an opening adjustment instruction; A speed optimization module, used for performing speed optimization processing on the hydrogen metering ratio through the speed regulation module to obtain a speed regulation instruction; The power regulating module is used to regulate the power of the hydrogen fuel cell stack through the opening regulating instruction and the speed regulating instruction to obtain the target power.

8. An electronic device, characterized in that: It comprises a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the processor executes the steps of the power regulation method of the hydrogen fuel cell stack as described in any one of claims 1-6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed, the power regulation method for the hydrogen fuel cell stack as described in any one of claims 1 to 6 is implemented.

10. A computer program product, characterized in that The computer program product includes a computer program stored on a non-transitory computer-readable storage medium, wherein the computer program includes program instructions, wherein when the program instructions are executed by a computer, the computer executes the power regulation method for a hydrogen fuel cell stack as described in any one of claims 1-6.

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