CN112290061B - Fuel cell simulation apparatus, method and storage medium - Google Patents
Fuel cell simulation apparatus, method and storage medium Download PDFInfo
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- CN112290061B CN112290061B CN202011182035.3A CN202011182035A CN112290061B CN 112290061 B CN112290061 B CN 112290061B CN 202011182035 A CN202011182035 A CN 202011182035A CN 112290061 B CN112290061 B CN 112290061B
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- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04305—Modeling, demonstration models of fuel cells, e.g. for training purposes
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
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- H—ELECTRICITY
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
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- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
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Abstract
The device comprises an input channel, an output channel, a consumption channel, a control module and a flow regulation assembly, wherein the input channel is provided with a first sensor assembly and a heating assembly, and the first sensor assembly detects a first performance parameter of reaction gas of the input channel; the control module acquires the working heat productivity of the target fuel cell and calculates the consumption of the reaction gas; the heating assembly generates heating quantity equivalent to the working heating quantity so as to simulate the working heating of the target fuel cell; the control module controls the opening and closing of the flow regulating assembly so as to regulate the gas proportion in the consumption channel and the output channel. This application utilizes heating element and flow control subassembly through letting in real reaction gas to fuel cell analogue means, simulates target fuel cell calorific capacity and reaction gas consumption, can reflect the true operating condition of target fuel cell and the true characteristic of during operation, improves the comprehensiveness to BOP performance test.
Description
Technical Field
The present application relates to the field of fuel cell technology, and in particular, to a fuel cell simulation apparatus, method, and storage medium.
Background
At present, fuel cell hydrogen supply and circulation system technical routes are numerous, the testing requirements on parts are high, performance verification or calibration needs to be carried out under different schemes, and a fuel cell testing rack is produced at the same time.
The fuel cell test bench can test for different fuel cell auxiliary Systems (BOPs), but in the past a real stack was used when testing for BOPs, however there were the following problems with using a real stack:
1. different electric piles matched with different BOPs are different, different electric piles are required to be prepared for testing different BOPs, and the testing cost is higher;
2. when different BOPs are tested, the galvanic pile needs to be replaced, and the testing efficiency is low;
3. when the test is operated for a long time, the galvanic pile consumes a large amount of fuel gas such as hydrogen, resulting in high test cost.
In order to solve the above problems, a method for performing BOP testing by using a stack simulator has been developed at present, but the stack simulator adopted in the prior art generally adopts a power supply structure, which can only simulate the voltage and current characteristics of a stack, cannot simulate the real characteristics of the stack under different working conditions according to the parameters of input gas, and further cannot comprehensively test the BOP performance.
Disclosure of Invention
The application provides a fuel cell simulation device, a fuel cell simulation method and a storage medium, and aims to solve the problems that in the prior art, a galvanic pile simulator adopting a power supply structure can only simulate the voltage and current characteristics of a galvanic pile, and cannot simulate the real characteristics of the galvanic pile under different working conditions according to the parameters of input gas.
In a first aspect, the present application provides a fuel cell simulation apparatus, including an input channel, an output channel, a consumption channel, a control module and a flow regulation assembly, wherein the input channel is sequentially provided with a first sensor assembly and a heating assembly, the flow regulation assembly is disposed at the end of the input channel, the output channel and the consumption channel are respectively communicated with the input channel through the flow regulation assembly, and the flow regulation assembly, the first sensor assembly and the heating assembly are respectively in communication connection with the control module;
a first sensor assembly for sensing a first performance parameter of reactant gas flowing into the input channel, the reactant gas comprising fuel gas and air, the first performance parameter comprising a stoichiometric ratio of fuel gas to air;
the control module is used for acquiring the working calorific value of the target fuel cell according to the first performance parameter and a preset calorific value acquisition rule; calculating the consumption of the reaction gas of the target fuel cell according to the first performance parameter and a preset consumption calculation rule;
the heating assembly is used for generating heating value equivalent to the working heating value so as to simulate the working heating of the target fuel cell;
the control module is also used for controlling the opening and closing of the flow regulating assembly so that the simulated consumption gas with the same amount as the consumption of the reaction gas flows to the consumption channel in the reaction gas in the input channel, and the residual reaction gas except the simulated consumption gas in the reaction gas flows to the output channel.
In a possible implementation manner of the application, a second sensor assembly in communication connection with the control module is arranged on the consumption channel, the second sensor assembly is used for detecting the mass flow ratio of the analog consumption gas in the consumption channel, and the control module adjusts the opening and closing of the flow adjusting assembly according to the mass flow ratio so as to control the ratio of the analog consumption gas to the residual reaction gas.
In a possible implementation manner of the present application, a third sensor assembly communicatively connected to the control module is disposed on the output channel, and the third sensor assembly is configured to detect a second performance parameter of the remaining reactant gas in the output channel, where the second performance parameter includes at least one of a flow rate, a pressure, and a temperature of the remaining reactant gas.
In a possible implementation manner of the present application, the output channel includes an air output channel, the apparatus further includes a deionized water branch, and an output end of the deionized water branch is communicated with an input end of the air output channel.
In a possible implementation manner of the present application, the apparatus further includes a cooling channel, the cooling channel is provided with a fourth sensor component and a second heating component, the fourth sensor component and the second heating component are respectively in communication connection with the control module, the fourth sensor component is used for detecting a liquid performance parameter of cooling liquid in the cooling channel, and the second heating component is used for generating a heating value equivalent to the working heating value to simulate the working heating of the target fuel cell.
In a possible implementation manner of the present application, the control module obtains an output current of the target fuel cell during operation according to the first performance parameter, the preset calorific value obtaining rule includes a relation graph between preset current and calorific value, and the relation graph is used for reflecting a corresponding relation between the output current of the target fuel cell during operation and the working calorific value.
In one possible implementation manner of the present application, the reactant gas consumption includes a fuel gas consumption, the preset consumption calculation rule includes a fuel gas consumption calculation rule, and the fuel gas consumption calculation rule includes: the fuel gas consumption amount is calculated based on the output current at the time of operation of the target fuel cell and the number of unit cells of the target fuel cell.
In one possible implementation manner of the present application, the reactive gas consumption includes an air consumption, the preset consumption calculation rule includes an air consumption calculation rule, and the air consumption calculation rule includes: and calculating the air consumption according to the output current of the target fuel cell during operation and the number of the single cells of the target fuel cell.
In a possible implementation manner of the present application, a first control valve set for controlling the circulation of the reaction gas in the input channel is disposed on the input channel, and a second control valve set for controlling the circulation of the simulation consumption gas in the consumption channel is disposed on the consumption channel.
In one possible implementation manner of the present application, the output channel is communicated with a first recovery device for recovering the remaining reaction gas, and the consumption channel is communicated with a second recovery device for recovering the simulated consumption gas.
In a second aspect, the present application further provides a fuel cell simulation method applied to a fuel cell simulation apparatus, where the apparatus includes an input channel, an output channel, and a consumption channel, the input channel is provided with a heating assembly, and the method includes:
acquiring a first performance parameter of a reaction gas flowing into an input channel, wherein the reaction gas comprises a fuel gas and air, and the first performance parameter comprises a stoichiometric ratio of the fuel gas to the air;
calculating the output current of the target fuel cell during operation according to the first performance parameter;
acquiring the working heat productivity and the reactant gas consumption of the target fuel cell according to the output current;
controlling the heating assembly to generate a heating value equal to the working heating value;
and controlling the volume proportion of the reaction gas flowing to the output channel and the consumption channel respectively according to the consumption amount of the reaction gas.
In one possible implementation manner of the present application, obtaining the operation heating value of the target fuel cell according to the output current includes:
acquiring a preset relation graph between current and heating value, wherein the relation graph is used for reflecting the corresponding relation between the output current and the working heating value when the target fuel cell works;
and searching the working heat value corresponding to the output current in the relational graph to obtain the working heat value of the target fuel cell.
In one possible implementation manner of the present application, obtaining a reactant gas consumption amount of a target fuel cell based on an output current includes:
acquiring the number of single batteries of a target fuel battery;
and calculating the consumption of the reaction gas according to the output current and the number of the single batteries.
In a third aspect, the present application also provides a computer readable storage medium having a computer program stored thereon, the computer program being loaded by a processor to perform the steps of the fuel cell simulation method of any of the second aspects.
In this application, through letting in reactant gas to input channel, utilize the first sensor subassembly that sets up on the input channel to detect reactant gas's first performance parameter, and then obtain target fuel cell's work calorific capacity, make heating element produce with this work calorific capacity equivalent calorific capacity simulate target fuel cell's work heating state, adjust the proportion of simulation consumed gas and surplus reactant gas through the flow control subassembly simultaneously, can reflect target fuel cell's true operating condition and the true characteristic of during operation, and then improve the comprehensiveness to BOP performance test, application scope is wide.
Drawings
In order to more clearly illustrate the technical solutions in the present application, the drawings that are needed to be used in the description of the present application will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive effort.
Fig. 1 is a schematic structural view of a fuel cell simulation apparatus provided in an embodiment of the present application;
FIG. 2 is a schematic view of another structure of a fuel cell simulation apparatus provided in an embodiment of the present application;
FIG. 3 is a schematic view of another structure of a fuel cell simulation apparatus provided in an embodiment of the present application;
FIG. 4 is a schematic view of another structure of a fuel cell simulation apparatus provided in an embodiment of the present application;
fig. 5 is a schematic diagram of a relationship diagram between the current and the heat generation amount of the target fuel cell provided in the embodiment of the present application;
fig. 6 is a schematic diagram of a UI characteristic diagram of current versus voltage of a target fuel cell provided in an embodiment of the present application;
FIG. 7 is a schematic diagram of a current-voltage-power dependence of a target fuel cell provided in an embodiment of the present application;
FIG. 8 is a schematic flow chart of a fuel cell simulation method provided in an embodiment of the present application;
fig. 9 is a schematic flow chart of obtaining the operating calorific value of the target fuel cell in the embodiment of the present application;
fig. 10 is a schematic view of a flow chart for obtaining the consumption amount of the reactant gas of the target fuel cell in the embodiment of the present application.
Detailed Description
The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
The present application provides a fuel cell simulation apparatus, method and storage medium, each of which is described in detail below.
First, an embodiment of the present application provides a fuel cell simulation apparatus, which simulates a target fuel cell through the fuel cell simulation apparatus, and simulates real output of the target fuel cell according to parameters such as flow rate and pressure of a reactant gas input to the fuel cell simulation apparatus, so as to comprehensively test performance of an auxiliary control network system BOP.
As shown in fig. 1, a schematic structural diagram of a fuel cell simulation apparatus provided in an embodiment of the present application is provided, the apparatus includes an input channel 100, an output channel 600, a consumption channel 500, a control module 700, and a flow rate adjustment assembly 400, the input channel 100 is sequentially provided with a first sensor assembly 200 and a heating assembly 300, wherein the flow rate adjustment assembly 400 is disposed at an end of the input channel 100, the output channel 600 and the consumption channel 500 are respectively communicated with the input channel 100 through the flow rate adjustment assembly 400, and the flow rate adjustment assembly 400, the first sensor assembly 200, and the heating assembly 300 are respectively in communication connection with the control module 700.
In the embodiment of the present application, the input channel 100, the output channel 600 and the consumption channel 500 are all gas circulation channels, the output channel 600 and the consumption channel 500 are respectively communicated with the input channel 100 through the flow regulating assembly 400, and the input channel 100, the flow regulating assembly 400, the output channel 600 and the consumption channel 500 are connected seamlessly, so that gas leakage from the connection is avoided. The control module 700 and the flow regulating assembly 400, the first sensor assembly 200, and the heating assembly 300 may be communicatively connected by any communication method, including but not limited to, wireless communication based on Bluetooth (Bluetooth) and Zigbee (Zigbee), or Field Bus (FB) communication based on Controller Area Network (CAN), serial interface, and the like.
The first sensor assembly 200 is configured to detect a first performance parameter of reactant gas flowing into the input channel 100, the reactant gas including fuel gas and air, the first performance parameter including a stoichiometric ratio of fuel gas to air.
In the embodiment of the present application, the fuel cell simulator simulates a hydrogen-oxygen fuel cell, taking a hydrogen-oxygen fuel cell as an example of a target fuel cell, and therefore, in the embodiment of the present application, the fuel gas is selected to be hydrogen. It should be noted that the fuel cell simulation apparatus of the present application may also be used to simulate other types of fuel cells, and accordingly, the fuel gas may also be natural gas, coal gas, alcohol, etc., and the specific type of the fuel gas may be selected according to the target fuel cell to be simulated, which is not limited herein.
In the embodiment of the present application, the first sensor assembly 200 may include an infrared thermometer, a temperature transmitter, a pressure transmitter, and the like, and the first sensor assembly 200 detects parameters such as temperature, pressure, and the like of the hydrogen gas and the air in the input channel 100, so as to obtain the stoichiometric ratio of the hydrogen gas and the air.
The control module 700 is configured to obtain the working calorific value of the target fuel cell according to the first performance parameter and a preset calorific value obtaining rule; and calculating the consumption of the reaction gas of the target fuel cell according to the first performance parameter and a preset consumption calculation rule.
In the embodiment of the present application, the control module 700 obtains the working calorific value of the target fuel cell during normal operation according to the first performance parameter uploaded by the first sensor assembly 200 and a preset calorific value obtaining rule preset according to the stack characteristic curve of the target fuel cell; and acquiring the reactant gas consumption, such as hydrogen consumption and air consumption, of the target fuel cell during normal operation according to the first performance parameter uploaded by the first sensor assembly 200 and a preset consumption calculation rule preset according to the stack characteristic curve of the target fuel cell.
And the heating assembly 300 is used for generating a heating value equivalent to the working heating value so as to simulate the working heating of the target fuel cell.
In the embodiment of the present application, the control module 700 controls the heating module 300 to generate a heating value equal to the working heating value according to the acquired working heating value of the target fuel cell during normal operation, so as to simulate the heating condition of the target fuel cell during normal operation.
The control module 700 is further configured to control the opening and closing of the flow rate adjustment assembly 400, so that, in the reactant gas in the input channel 100, a simulated consumed gas equal to the consumed reactant gas flows to the consumption channel 500, and the remaining reactant gas except the simulated consumed gas in the reactant gas flows to the output channel 600.
In this embodiment, the flow regulating assembly 400 may be a proportional regulating valve or other device capable of regulating gas to flow to different channels according to different proportions, and the control module 700 controls the on/off of the flow regulating assembly 400 according to the obtained reactant gas consumption, such as hydrogen consumption and air consumption, of the target fuel cell during normal operation, so that a simulated consumed gas, which is equal to the hydrogen consumption and is equal to the air consumption, in the reactant gas flows to the consumption channel 500, thereby simulating a reactant gas consumption situation of the target fuel cell during normal operation, and meanwhile, the remaining hydrogen and air in the reactant gas flow to the output channel 600, thereby simulating gas discharge of the target fuel cell during normal operation.
In this application, through letting in reactant gas to input channel 100, utilize the first sensor subassembly 200 that sets up on input channel 100 to detect reactant gas's first performance parameter, and then obtain target fuel cell's work calorific capacity, make heating assembly 300 produce with this work calorific capacity equivalent calorific capacity simulate target fuel cell's work calorific capacity, adjust the proportion of simulation consumed gas and surplus reactant gas through flow control assembly 400 simultaneously, can reflect target fuel cell's true operating condition and the true characteristic of during operation, and then improve the comprehensive nature to BOP performance test, application scope is wide.
As shown in fig. 2, for another structural schematic diagram of the fuel cell simulation apparatus provided in the embodiment of the present application, specifically, a second sensor assembly 800 is disposed on the consumption channel 500 and is in communication with the control module 700, the second sensor assembly 800 is configured to detect a mass flow ratio of the analog consumption gas in the consumption channel 500, and the control module 700 adjusts on and off of the flow regulating assembly 400 according to the mass flow ratio to control a ratio of the analog consumption gas and the remaining reaction gas.
In the embodiment of the present application, the second sensor assembly 800 may be a Mass flow meter (Mass Flowmeter, MFM), and there are two types of Mass flow meters on the market currently, a direct type Mass flow meter can directly output the Mass flow of the analog consumption gas in the consumption channel 500, and an indirect type Mass flow meter, if a combination of an ultrasonic flow meter and a density meter is applied, multiplies the outputs of the ultrasonic flow meter and the density meter to finally obtain the Mass flow of the analog consumption gas in the consumption channel 500. The second sensor assembly 800 feeds back the detected mass flow ratio parameter to the control module 700, and the control module 700 adjusts the flow rate adjustment assembly 400 according to the fed back mass flow ratio to ensure that the simulated consumption gas in the consumption channel 500 is equal to the calculated consumption amount of the reactant gas in the normal operation of the target fuel cell.
Referring to fig. 2, a third sensor assembly 900 communicatively connected to the control module 700 is disposed on the output channel 600, and the third sensor assembly 900 is configured to detect a second performance parameter of the remaining reactant gas in the output channel 600, where the second performance parameter includes at least one of a flow rate, a pressure, and a temperature of the remaining reactant gas.
In the embodiment of the present application, the third sensor assembly 900 may include an infrared thermometer, a temperature transmitter, a pressure transmitter, and the like, and the third sensor assembly 900 is used to detect parameters such as flow, temperature, pressure, and the like of the residual reaction gas, such as residual hydrogen and residual air, in the output channel 100, so as to simulate performance parameters of the output gas of the target fuel cell during normal operation.
As shown in fig. 3, in order to provide a further schematic structural diagram of the fuel cell simulation apparatus in the embodiment of the present application, the input channel 100 includes a hydrogen branch 101 and an air branch 102, the consumption channel 500 includes a hydrogen consumption branch 501 and an air consumption branch 502, the output channel 600 includes a hydrogen output branch 601 and an air output branch 602, the first sensor assembly 200 includes a first infrared thermometer RH201, a first temperature transmitter TT201, and a first pressure transmitter PT201 disposed on the hydrogen branch 101, and a second infrared thermometer RH202, a second temperature transmitter TT202, and a second pressure transmitter PT202 disposed on the air branch 102, the heating assembly 300 includes a first heater H301 disposed on the hydrogen branch 101 and a second heater H302 disposed on the air branch 102, the flow regulating assembly 400 includes a first regulating valve 401 disposed at a terminal of the hydrogen branch 101 and a second regulating valve 402 disposed at a terminal of the air branch 102, the second sensor assembly 800 includes a first mass flow meter MFM801 disposed on the hydrogen consuming branch 501 and a second mass flow meter MFM802 disposed on the air consuming branch 502, a third sensor assembly 900 is disposed on the hydrogen outputting branch 601, and includes a third infrared thermometer RH901, a third temperature transmitter TT901, and a third pressure transmitter PT901, and a fourth infrared thermometer RH902, a fourth temperature transmitter TT902, and a fourth pressure transmitter PT902 disposed on the air outputting branch 602.
Referring to fig. 3, the fuel cell simulator further includes a deionized water branch 1001, and an output end of the deionized water branch 1001 is communicated with an input end of the air output branch 602, that is, a connection point of the deionized water branch 1001 and the air output branch 602 is located behind the first regulating valve 401 according to a gas flow direction. In the embodiment of the application, the deionized water branch 1001 is sequentially provided with a first water pump PU1001, a third mass flow meter MFM1001, a third heater H1001 and a second water pump C1001, which are in communication connection with the control module 700, wherein similarly, the control module 700 controls the third heater H1001 to generate a calorific value equivalent to the working calorific value of the target fuel cell during normal operation, so as to simulate the heating condition of the target fuel cell during normal operation.
In some embodiments of the present application, the fuel cell simulation apparatus further includes a cooling channel 1101, the cooling channel 1101 is provided with a fourth sensor assembly 1100 and a second heating assembly, which are respectively in communication with the control module 700, the fourth sensor assembly 1100 is configured to detect a liquid performance parameter of a cooling liquid in the cooling channel 1101, and the second heating assembly is configured to generate a heating value equivalent to an operating heating value to simulate an operating heating of a target fuel cell.
Since the fuel cell generates heat during operation, the fuel cell system is usually configured with a cooling system to dissipate heat of the fuel cell, in this embodiment of the present application, a cooling channel 1101 is provided, and a cooling liquid is introduced into the cooling channel 1101 to simulate a heat dissipation condition of a target fuel cell, the fourth sensor assembly 1100 includes a fifth temperature transmitter TT1101, a fifth pressure transmitter PT1101, a sixth temperature transmitter TT1102 and a sixth pressure transmitter PT1102 which are sequentially provided on the cooling channel 1101 and respectively connected to the control module 700 in a communication manner, the fourth sensor assembly 1100 uploads respective detected liquid performance parameters of the cooling liquid to the control module 700, the second heating assembly includes a fourth heater H1101, and similarly, the control module 700 controls the fourth heater H1101 to generate a heat amount equivalent to an operating heat amount of the target fuel cell during normal operation, so as to simulate the heating condition of the target fuel cell during normal operation.
Further, a first control valve set for controlling the circulation of the reaction gas in the input channel 100 is arranged on the input channel 100, and a second control valve set for controlling the circulation of the simulated consumption gas in the consumption channel 500 is arranged on the consumption channel 500, specifically, in the embodiment of the present application, the first control valve set includes a first control valve PV201 arranged on the hydrogen branch 101 and a second control valve PV202 arranged on the air branch 102, the second control valve set includes a third control valve PV203 arranged on the hydrogen consumption branch 501 and a fourth control valve PV204 arranged on the air consumption branch 502, and both the first control valve set and the second control valve set are in communication connection with the control module 700, and the circulation of the reaction gas is controlled by the control module 700. It should be noted that, since there are many devices communicatively connected to the control module 700 in fig. 3, it is inconvenient to simplify fig. 3 if each communication connection schematic line is shown in fig. 3, and therefore, connection schematic lines between the control module 700 and other devices are not shown in fig. 3.
In addition, as shown in fig. 4, as another schematic structural diagram of the fuel cell simulator provided in the embodiment of the present application, the output channel 600 is communicated with a first recovery device 1300 for recovering the remaining reactant gas, and the consumption channel 500 is communicated with a second recovery device 1200 for recovering the simulated consumed gas.
In some embodiments of the present application, the control module 700 obtains the output current of the target fuel cell during operation according to the first performance parameter, the preset heating value obtaining rule includes a preset relationship between the current and the heating value, as shown in fig. 5, which is a schematic diagram of a relationship between the current and the heating value of the target fuel cell in the embodiment of the present application, the relationship is used to reflect the corresponding relationship between the output current and the operating heating value of the target fuel cell during operation, please refer to fig. 5, the horizontal axis represents the output current of the target fuel cell in ampere, the vertical axis represents the heating value of the target fuel cell during operation in kilojoule, a plurality of curves between the horizontal axis and the vertical axis represent the corresponding relationship between the current and the heating value of the target fuel cell with different numbers of unit cells, the smaller the number of unit cells is, under the same current, the target fuel cell also has a lower heating value, that is, the target fuel cell has a positive correlation between the number of unit cells and the operating heating value at a constant output current.
In the embodiment of the present application, the stack characteristic curve of the target fuel cell is determined by the stack manufacturer when designing the stack, for example, the relationship graph between current and heat generation amount shown in fig. 5, the UI characteristic graph between current and voltage shown in fig. 6, the correlation graph between current, voltage and power shown in fig. 7, and the like, in the present application, the output current of the device is calculated according to the stoichiometric ratio of hydrogen and air, and the output current may be considered as the output current when the target fuel cell operates, and the heat generation amount corresponding to the output current can be obtained by querying the relationship graph between current and heat generation amount according to the number of the unit cells of the target fuel cell, and the control module 700 controls the heating module 300 to simulate the heat generation of the target fuel cell.
In some embodiments of the present application, the reaction gas consumption amount includes a fuel gas consumption amount, the preset consumption calculation rule includes a fuel gas consumption calculation rule, and the fuel gas consumption calculation rule includes: the fuel gas consumption amount is calculated based on the output current at the time of operation of the target fuel cell and the number of unit cells of the target fuel cell.
In the present application, taking fuel gas as hydrogen as an example, the hydrogen consumption is
The calculation formula of (A) is as follows:
wherein alpha is1Denotes the hydrogen gas calculation empirical coefficient, I denotes the output current, and N denotes the number of unit cells of the target fuel cell.
In some embodiments of the present application, the reactive gas consumption amount includes an air consumption amount, the preset consumption calculation rule includes an air consumption calculation rule, and the air consumption calculation rule includes: and calculating the air consumption according to the output current of the target fuel cell during operation and the number of the single cells of the target fuel cell.
In this application, the air consumption FAIRThe calculation formula of (A) is as follows:
FAIR＝α2×I×N×λAIR
wherein alpha is2Denotes an air calculation empirical coefficient, I denotes an output current, N denotes the number of unit cells of the target fuel cell, and lambdaAIRRepresenting a constant parameter.
In addition, in the present application, the heat quantity Q generated by the target fuel cellStackThe calculation formula of (A) is as follows:
wherein, Vo＝1.47V，VcellRepresenting the target fuel cell voltage at a given current, i.e., output current.
In the present application, the fuel cell simulation apparatus does not output actual voltage and current externally, and the electrical output is only the signal monitored by the sensor assembly, and is calculated by the control module 700 and fed back to each heater, the air intake pump, the control valve group, and the like for control.
In order to better implement the fuel cell simulation apparatus of the present application, based on the fuel cell simulation apparatus, the present application further provides a fuel cell simulation method, as shown in fig. 8, which is a schematic flow chart of the fuel cell simulation method provided in the present application, an execution subject of the method is the fuel cell simulation apparatus, the apparatus includes an input channel 100, an output channel 600, and a consumption channel 500, the input channel 100 is provided with a heating assembly 300, and the method includes:
s801, acquiring a first performance parameter of reaction gas flowing into the input channel 100, wherein the reaction gas comprises fuel gas and air, and the first performance parameter comprises the stoichiometric ratio of the fuel gas to the air;
in the present application, a hydrogen-oxygen fuel cell is taken as an example of a target fuel cell, and the fuel gas is selected to be hydrogen gas. It should be noted that the fuel gas in the present application may also be natural gas, coal gas, alcohol, etc., and the specific type of the fuel gas may be selected according to the target fuel cell to be simulated, which is not limited herein.
S802, calculating the output current of the target fuel cell during operation according to the first performance parameter;
s803, acquiring the working heat productivity and the reactant gas consumption of the target fuel cell according to the output current;
in the present application, the operating heating value of the target fuel cell corresponding to the output current can be inquired based on the stack characteristic curve of the target fuel cell, and the reactant gas consumption, such as the hydrogen consumption and the air consumption, can be calculated based on the output current.
S804, controlling the heating assembly 300 to generate heat equal to the working heat;
and S805, controlling the volume proportion of the reaction gas flowing to the output channel 600 and the consumption channel 500 respectively according to the consumption amount of the reaction gas.
As shown in fig. 9, which is a schematic flow chart of the present application for obtaining the operating heat value of the target fuel cell, in some embodiments of the present application, obtaining the operating heat value of the target fuel cell according to the output current may further include:
s901, obtaining a preset relation graph between current and heat productivity, wherein the relation graph is used for reflecting the corresponding relation between output current and work heat productivity when a target fuel cell works;
and S902, searching the working heat value corresponding to the output current in the relational graph to obtain the working heat value of the target fuel cell.
As shown in fig. 10, a schematic flow chart for obtaining the consumption amount of the reactant gas of the target fuel cell in the present application, in some embodiments, the obtaining the consumption amount of the reactant gas of the target fuel cell according to the output current includes:
s1001, acquiring the number of single batteries of a target fuel battery;
and S1002, calculating the consumption of the reaction gas according to the output current and the number of the single batteries.
In the application, through the first performance parameter of reactant gas, the output current of target fuel cell during operation is obtained like the stoichiometric ratio calculation of hydrogen and air, and then obtain target fuel cell's work calorific capacity according to output current, make heating element 300 produce with this work calorific capacity equivalent calorific capacity come the work of simulation target fuel cell state of generating heat, adjust the proportion of simulation consumed gas and surplus reactant gas through flow control assembly 400 simultaneously, can reflect target fuel cell's true operating condition and the true characteristic of during operation, and then improve the comprehensiveness to BOP performance test.
It should be noted that, in the present application, the relevant contents of S801-S805, S901-S902, and S1001-S1002 correspond to the above one to one, and it can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working process of the fuel cell simulation method described above may refer to the description of the fuel cell simulation apparatus in any embodiment corresponding to fig. 1 to fig. 7, and details thereof are not repeated herein.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be performed by instructions or by instructions controlling associated hardware, and the instructions may be stored in a computer readable storage medium and loaded and executed by a processor.
To this end, the present application provides a computer-readable storage medium, which may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like. Stored thereon, is a computer program that is loaded by a processor to perform the steps of any of the fuel cell simulation methods provided herein. For example, the computer program may be loaded by a processor to perform the steps of:
acquiring a first performance parameter of a reaction gas flowing into an input channel, wherein the reaction gas comprises a fuel gas and air, and the first performance parameter comprises a stoichiometric ratio of the fuel gas to the air;
calculating the output current of the target fuel cell during operation according to the first performance parameter;
acquiring the working heat productivity and the reactant gas consumption of the target fuel cell according to the output current;
controlling the heating assembly to generate a heating value equal to the working heating value;
and controlling the volume proportion of the reaction gas flowing to the output channel and the consumption channel respectively according to the consumption amount of the reaction gas.
Since the instructions stored in the computer-readable storage medium can execute the steps in the fuel cell simulation method according to any embodiment of the present application, such as those shown in fig. 8 to fig. 10, the beneficial effects that can be achieved by the fuel cell simulation method according to any embodiment of the present application, such as those shown in fig. 8 to fig. 10, can be achieved, and are not described in detail herein.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.
In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing embodiments, which are not described herein again.
The foregoing has described in detail a fuel cell simulation apparatus, method and storage medium provided by the present application, wherein the principles and implementations of the present application are described herein using specific examples, and the above description is only provided to facilitate understanding of the methods and core concepts of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. A fuel cell simulation device is characterized by comprising an input channel, an output channel, a consumption channel, a control module and a flow regulation assembly, wherein a first sensor assembly and a heating assembly are sequentially arranged on the input channel, the flow regulation assembly is arranged at the tail end of the input channel, the output channel and the consumption channel are respectively communicated with the input channel through the flow regulation assembly, and the flow regulation assembly, the first sensor assembly and the heating assembly are respectively in communication connection with the control module;
the first sensor assembly for detecting a first performance parameter of a reactant gas flowing into the input channel, the reactant gas comprising fuel gas and air, the first performance parameter comprising a stoichiometric ratio of the fuel gas to the air;
the control module is used for acquiring the working calorific value of the target fuel cell according to the first performance parameter and a preset calorific value acquisition rule; calculating the consumption of the reaction gas of the target fuel cell according to the first performance parameter and a preset consumption calculation rule;
the heating assembly is used for generating a heating value equal to the working heating value so as to simulate the working heating of the target fuel cell;
the control module is further configured to control opening and closing of the flow regulating assembly, so that a simulated consumed gas, which is equal to the consumed amount of the reaction gas, in the reaction gas in the input channel flows to the consumption channel, and a remaining reaction gas, excluding the simulated consumed gas, in the reaction gas flows to the output channel;
the output channel is provided with a third sensor assembly which is in communication connection with the control module, the third sensor assembly is used for detecting a second performance parameter of the residual reaction gas in the output channel, and the second performance parameter comprises at least one of flow, pressure and temperature of the residual reaction gas;
the input channel comprises a hydrogen branch and an air branch, the consumption channel comprises a hydrogen consumption branch and an air consumption branch, and the output channel comprises a hydrogen output branch and an air output branch;
the device also comprises a deionized water branch, wherein the output end of the deionized water branch is communicated with the input end of the air output branch;
the heating assembly comprises a first heater arranged on the hydrogen branch and a second heater arranged on the air branch;
the output channel is communicated with a first recovery device for recovering the residual reaction gas, and the consumption channel is communicated with a second recovery device for recovering the simulated consumption gas.
2. The device of claim 1, wherein the consumption channel is provided with a second sensor assembly in communication connection with the control module, the second sensor assembly is used for detecting a mass flow ratio of the simulated consumption gas in the consumption channel, and the control module adjusts the on-off of the flow adjusting assembly according to the mass flow ratio so as to control the ratio of the simulated consumption gas to the residual reaction gas.
3. The device of claim 1, further comprising a cooling channel, wherein a fourth sensor assembly and a second heating assembly are disposed on the cooling channel, the fourth sensor assembly and the second heating assembly being respectively in communication with the control module, the fourth sensor assembly being configured to detect a liquid property parameter of a cooling liquid in the cooling channel, and the second heating assembly being configured to generate a heating value equivalent to the operating heating value to simulate the target fuel cell operating heating.
4. The apparatus according to claim 1, wherein the control module obtains the output current of the target fuel cell during operation according to the first performance parameter, and the preset heating value obtaining rule includes a preset relationship map between the current and a heating value, and the relationship map is used for reflecting a corresponding relationship between the output current of the target fuel cell during operation and the operating heating value.
5. The apparatus according to claim 1, wherein the reaction gas consumption amount includes a fuel gas consumption amount, the preset consumption amount calculation rule includes a fuel gas consumption calculation rule including: and calculating the fuel gas consumption according to the output current of the target fuel cell during operation and the number of the single cells of the target fuel cell.
6. The apparatus of claim 1, wherein the reactive gas consumption comprises an air consumption, wherein the preset consumption calculation rule comprises an air consumption calculation rule comprising: and calculating the air consumption according to the output current of the target fuel cell during operation and the number of the single cells of the target fuel cell.
7. The apparatus as claimed in claim 1, wherein the input channel is provided with a first control valve set for controlling the flow of the reaction gas in the input channel, and the consumption channel is provided with a second control valve set for controlling the flow of the simulated consumption gas in the consumption channel.
8. A fuel cell simulation method is characterized in that the method is applied to a fuel cell simulation device, the device comprises an input channel, an output channel and a consumption channel, the input channel comprises a hydrogen branch and an air branch, the consumption channel comprises a hydrogen consumption branch and an air consumption branch, the output channel comprises a hydrogen output branch and an air output branch, the input channel is provided with a heating component, the device further comprises a deionized water branch, the heating component comprises a first heater arranged on the hydrogen branch and a second heater arranged on the air branch, the output end of the deionized water branch is communicated with the input end of the air output branch, the output channel is communicated with a first recovery device for recovering residual reaction gas, the consumption channel is communicated with a second recovery device for recovering simulated consumption gas, the method comprises the following steps:
obtaining a first performance parameter of a reactant gas flowing into the input channel, the reactant gas comprising a fuel gas and air, the first performance parameter comprising a stoichiometric ratio of the fuel gas to the air;
calculating the output current of the target fuel cell during operation according to the first performance parameter;
acquiring the working heat productivity and the reactant gas consumption of the target fuel cell according to the output current;
controlling the heating assembly to generate a heating value equal to the working heating value;
controlling the volume proportion of the reaction gas flowing to the output channel and the consumption channel respectively according to the consumption amount of the reaction gas;
detecting a second performance parameter of the remaining reactant gas within the output channel, the second performance parameter including at least one of a flow rate, a pressure, and a temperature of the remaining reactant gas;
and collecting the reaction gas, and introducing the collected and processed reaction gas into the fuel cell simulation device.
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| CN114357806B (en) * | 2022-03-11 | 2022-06-17 | 中国汽车技术研究中心有限公司 | Dual-mode simulation method and device of fuel cell stack based on material flow interface |
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