Power generation system, test method and device, electronic equipment and medium

Abstract

The invention relates to a power generation system, a test method and device, electronic equipment and a medium. The method comprises the steps that under the condition that a power generation subsystem is in a target power generation working condition, the first liquid water amount collected by a water collection module and the second liquid water amount collected by a water storage unit are determined, and the separation efficiency of a hydrogen-water separation module is determined according to the first liquid water amount and the second liquid water amount; acquiring gaseous component parameter data output by the gas component test subsystem and obtained by detecting a second mixed medium output by the mixed medium output end of the hydrogen-water separation test subsystem; acquiring first sensing data detected by the first sensing module for the first mixed medium and / or the second mixed medium; and generating test data for the power generation system according to the separation efficiency, the first sensing data and the gaseous component parameter data. According to the invention, various state parameters can be measured at the same time, the functions are complete, the integration level is high, and the test complexity and cost are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation systems, and in particular to a power generation system, a testing method, a device, an electronic device and a medium. Background Art

[0002] Fuel cells, as clean, environmentally friendly, and highly efficient energy conversion devices, are increasingly being applied in various fields, including industry, transportation, and electricity. The fuel cell stack is where the hydrogen and oxygen react. To maintain performance during operation, an excess of hydrogen fuel is required. Unconsumed hydrogen is recirculated back to the anode inlet through a hydrogen circulation system for reuse. This hydrogen circulation system on the anode side of the stack effectively improves hydrogen utilization.

[0003] During fuel cell operation, water is generated on the cathode side of the fuel cell. The difference in water concentration between the cathode and anode causes some of the water generated at the cathode to be transferred to the anode, resulting in liquid water on the anode flow channel containing hydrogen. The hydrogen containing liquid water at the anode outlet of the fuel cell needs to flow back to the anode inlet of the fuel cell. If the recycled hydrogen contains excessive liquid water, it will cause flooding of the fuel transmission channel after entering the anode inlet of the fuel cell stack, hindering fuel transmission and affecting the performance of the fuel cell. At low temperatures below zero degrees Celsius, the liquid water in the returning hydrogen may freeze, blocking the hydrogen circulation device, affecting the normal supply of fuel, and in severe cases even causing damage to the hydrogen circulation device.

[0004] In related technologies, in order to ensure the normal operation of fuel cells, it is necessary to effectively test the separation of liquid water and the mixed medium output from the anode side outlet; and how to effectively test the separation of liquid water and the mixed medium output from the anode side outlet has become a problem that needs to be solved urgently in the fuel cell scenario. Summary of the Invention

[0005] In view of the above problems, a power generation system, a testing method, a device, an electronic device and a medium are proposed to overcome the above problems or at least partially solve the above problems, including:

[0006] A method for testing a power generation system, the power generation system comprising a power generation subsystem, a hydrogen-water separation test subsystem, and a gas composition test subsystem; the hydrogen-water separation test subsystem comprising a hydrogen-water separation module, a water collection module, and a first sensor module; the hydrogen-water separation module being integrated with a water storage unit; the input end of the hydrogen-water separation module being connected to the anode-side outlet of the power generation subsystem; the hydrogen-water separation module being configured to separate liquid water from a first mixed medium output from the anode-side outlet and store the liquid water in the water storage unit; the water collection module being connected to the mixed medium output end of the hydrogen-water separation module; and the mixed medium output end of the hydrogen-water separation test subsystem being connected to the input end of the gas composition test subsystem; the method comprising:

[0007] When the power generation subsystem is in a target power generation condition, determining a first amount of liquid water collected by the water collection module and a second amount of liquid water collected by the water storage unit, and determining a separation efficiency of the hydrogen-water separation module based on the first amount of liquid water and the second amount of liquid water;

[0008] Obtaining gaseous component parameter data output by the gas component testing subsystem and detected for a second mixed medium output by the mixed medium output end of the hydrogen-water separation testing subsystem; and obtaining first sensor data detected by the first sensor module for the first mixed medium and / or the second mixed medium;

[0009] Test data for the power generation system is generated according to the separation efficiency, the first sensor data, and the gaseous component parameter data.

[0010] Optionally, the hydrogen-water separation module is further integrated with a first drain valve, which is provided at the water outlet of the water storage unit; the water collection module is provided with a water volume detection unit; and the determining of the first liquid water volume collected by the water collection module and the second liquid water volume collected by the water storage unit includes:

[0011] After the power generation subsystem is in a target power generation condition for a target period of time, determining the first liquid water volume according to first water volume detection data output by the water volume detection unit;

[0012] opening the first drain valve and, after all the liquid water stored in the water storage unit enters the water collection module, determining a third liquid water volume according to the second water volume detection data output by the water volume detection unit;

[0013] The second liquid water amount is determined according to the third liquid water amount and the first liquid water amount.

[0014] Optionally, the water collection module is provided with a second drain valve; the method further comprises:

[0015] After generating test data for the power generation system, opening the first drain valve and the second drain valve;

[0016] A purge gas is input into the hydrogen-water separation test system from the anode side outlet.

[0017] Optionally, the method further includes:

[0018] The power generation subsystem is controlled according to the test data.

[0019] The present invention also provides a power generation system, which includes a power generation subsystem, a hydrogen-water separation test subsystem, a gas component test subsystem, and a test control subsystem; wherein:

[0020] The hydrogen-water separation test subsystem includes a hydrogen-water separation module, a water collection module and a first sensing module; the hydrogen-water separation module is integrated with a water storage unit;

[0021] The input end of the hydrogen-water separation module is connected to the anode side outlet of the power generation subsystem; the hydrogen-water separation module is used to separate the liquid water in the first mixed medium output from the anode side outlet and store it in the water storage unit; the water collection module is connected to the mixed medium output end of the hydrogen-water separation module;

[0022] The mixed medium output end of the hydrogen-water separation test subsystem is connected to the input end of the gas component test subsystem; the gas component test subsystem is used to test the gaseous components in the second mixed medium output by the hydrogen-water separation test system;

[0023] The test control subsystem is connected to the hydrogen-water separation test system, the power generation subsystem and the gas component test system; the test control subsystem is used to determine the first liquid water volume collected by the water collection module and the second liquid water volume collected by the water storage unit when the power generation subsystem is in the target power generation condition, and determine the separation efficiency of the hydrogen-water separation module based on the first liquid water volume and the second liquid water volume; obtain the gaseous component parameter data output by the gas component test subsystem and detected for the second mixed medium output from the mixed medium output end of the hydrogen-water separation test subsystem; and obtain the first sensor data detected by the first sensor module for the first mixed medium and / or the second mixed medium; generate test data for the power generation system based on the separation efficiency, the first sensor data, and the gaseous component parameter data.

[0024] Optionally, the hydrogen-water separation module is further integrated with a first drain valve, which is arranged at the water outlet of the water storage unit; the water collection module is provided with a water amount detection unit;

[0025] The test control subsystem is used to determine the first liquid water volume according to the first water volume detection data output by the water volume detection unit after the power generation subsystem has been in the target power generation condition for a target period of time; to open the first drain valve, and after all the liquid water stored in the water storage unit enters the water collection module, to determine the third liquid water volume according to the second water volume detection data output by the water volume detection unit; and to determine the second liquid water volume according to the third liquid water volume and the first liquid water volume.

[0026] Optionally, the water collection module is provided with a second drain valve;

[0027] The test control subsystem is further used to open the first drain valve and the second drain valve after generating test data for the power generation system; and input purge gas from the anode side outlet to the hydrogen-water separation test system.

[0028] Optionally, the power generation subsystem includes:

[0029] A fuel cell module, including a fuel cell and a fuel cell voltage monitoring device;

[0030] A water cooling module, used to provide cooling to the fuel cell module;

[0031] An air supply and exhaust module, used to provide reaction air to the fuel cell module and exhaust the air after the reaction is completed;

[0032] A hydrogen supply module is used to provide hydrogen to the fuel cell module.

[0033] Optionally, the first sensing module includes at least one of an air pressure sensor, a temperature sensor, and a humidity sensor.

[0034] The present invention also provides a testing device for a power generation system, wherein the power generation system includes a power generation subsystem, a hydrogen-water separation testing subsystem, and a gas composition testing subsystem; the hydrogen-water separation testing subsystem includes a hydrogen-water separation module, a water collection module, and a first sensor module; the hydrogen-water separation module is integrated with a water storage unit; the input end of the hydrogen-water separation module is connected to the anode side outlet of the power generation subsystem; the hydrogen-water separation module is used to separate liquid water in the first mixed medium output from the anode side outlet and store it in the water storage unit; the water collection module is connected to the mixed medium output end of the hydrogen-water separation module; the mixed medium output end of the hydrogen-water separation testing subsystem is connected to the input end of the gas composition testing subsystem; the device includes:

[0035] a first collecting module, configured to determine, when the power generation subsystem is in a target power generation condition, a first amount of liquid water collected by the water collection module and a second amount of liquid water collected by the water storage unit, and determine a separation efficiency of the hydrogen-water separation module based on the first amount of liquid water and the second amount of liquid water;

[0036] a second collecting module, configured to obtain gaseous component parameter data output by the gas component testing subsystem and detected for a second mixed medium output by the mixed medium output end of the hydrogen-water separation testing subsystem; and to obtain first sensing data detected by the first sensing module for the first mixed medium and / or the second mixed medium;

[0037] A generating module is used to generate test data for the power generation system according to the separation efficiency, the first sensor data, and the gaseous component parameter data.

[0038] The present invention also provides an electronic device, comprising a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein the computer program implements the above-mentioned power generation system testing method when executed by the processor.

[0039] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the method for testing the power generation system described above is implemented.

[0040] Beneficial effects of the present invention:

[0041] In an embodiment of the present invention, when the power generation subsystem is in the target power generation condition, the amount of first liquid water collected by the water collection module and the amount of second liquid water collected by the water storage unit are determined, and the separation efficiency of the hydrogen-water separation module is determined based on the first liquid water amount and the second liquid water amount; the gaseous component parameter data output by the gas component testing subsystem and detected for the second mixed medium output by the mixed medium output end of the hydrogen-water separation testing subsystem are obtained; and the first sensor data detected by the first sensor module for the first mixed medium and / or the second mixed medium are obtained; based on the separation efficiency, the first sensor data, and the gaseous component parameter data, test data for the power generation system is generated. Through the embodiment of the present invention, the water separation efficiency of the hydrogen-water separation module can be tested based on a simple device when the fuel cell stack is in the actual operating condition; in addition, the gaseous component of the mixed medium can be tested based on the first sensor module and the gas component testing subsystem. Through the embodiments of the present invention, the actual working conditions of the power generation electronic system can be truly tested, and the test results are more direct and accurate; and through this highly integrated system, various state parameters can be measured simultaneously, with complete functions and high integration, reducing the complexity and cost of the test; in addition, the entire test process is highly integrated and automated, and can automatically collect, process and analyze data and automatically adjust the working conditions to test the state parameters under all working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 is a flowchart of the steps of a method for testing a power generation system according to an embodiment of the present invention;

[0043] Figure 2 is a structural schematic diagram of a power generation system according to an embodiment of the present invention;

[0044] Figure 3 is a flowchart of another method for testing a power generation system according to an embodiment of the present invention;

[0045] Figure 4 is a structural schematic diagram of another power generation system according to an embodiment of the present invention;

[0046] Figure 5 is a flowchart of the steps of a testing method according to an embodiment of the present invention;

[0047] Figure 6 It is a structural schematic diagram of a testing device for a power generation system according to an embodiment of the present invention.

[0048] Description of the accompanying drawings:

[0049] 200-Power generation system, 201-Power generation subsystem, 202-Hydrogen-water separation test subsystem, 203-Gas component test subsystem, 204-Test control subsystem, 205-Hydrogen-water separation module, 206-Water collection module, 207-First sensor module, 208-Nitrogen and hydrogen exhaust valve, 209-First drain valve, 210-Second drain valve, 211-Fourth shut-off valve, 212-Fifth temperature and pressure sensor, 213-Third temperature and humidity sensor, 214-Mass flow meter, 215-Pressure regulating valve, 216-Mass spectrometer, 217-Data acquisition module, 218-Stack module, 219-Stack, 220-Stack voltage monitoring device, 221-Water cooling module, 222-Air supply and exhaust module, 223-Hydrogen Supply module, 224-coolant storage tank, 225-water pump, 226-first stop valve, 227-first temperature and pressure sensor, 228-second temperature and pressure sensor, 229-first flow meter, 230-compressed gas source, 231-first proportional valve, 232-second flow meter, 233-air filter, 234-electric heating device, 235-first temperature and humidity sensor, 236-second stop valve, 237-third temperature and pressure sensor, 238-third stop valve, 239-gas-water separator, 240-muffler, 241-hydrogen source, 242-first pressure reducing valve, 243-second pressure reducing valve, 244 second proportional valve, 245-third flow meter, 246-second temperature and humidity sensor, 247-fourth temperature and pressure sensor. DETAILED DESCRIPTION

[0050] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0051] In related technologies, a water separator is installed at the hydrogen outlet of the fuel cell stack to separate hydrogen and liquid water, and then discharge the liquid water through the tail valve. The water separation efficiency of the separator is crucial, so measuring the separation efficiency of the separator is crucial.

[0052] In addition, nitrogen gas generated after the cathode reaction of the stack diffuses across the proton exchange membrane toward the stack anode, causing the hydrogen concentration in the stack anode chamber to decrease, which in turn causes a drop in the stack output voltage and, in severe cases, even shortens the stack life. Therefore, it is particularly important to measure the composition of the exhaust gas on the anode side of the stack.

[0053] In related technologies, a simulation system can be built to simulate the outlet state of the fuel cell anode, and then the water separation efficiency of the hydrogen-water separator can be measured. This simulation method not only has a complex structure, requires more equipment, and is costly, but also has a large deviation between the simulated fuel cell anode outlet gas state and the actual fuel cell state. The large test error makes it difficult to effectively support the conclusions of the test. In addition, the test device built by the above technology has a single function and can only be used to measure the water separation efficiency of the hydrogen-water separator, and is not compatible with other test functions.

[0054] Based on the problems existing in the related art, an embodiment of the present invention provides a test method for a power generation system, which can complete the test of the water separation efficiency of the water separation component (i.e., the hydrogen-water separation module mentioned in the present invention) under actual operating conditions based on a simple device (i.e., a water collection module and a water storage unit); in addition, the test of the gaseous components of the mixed medium is completed based on the first sensor module and the gas component test subsystem. Through the embodiment of the present invention, the actual operating conditions of the power generation subsystem (i.e., the fuel cell stack) can be truly tested, and the test results are more direct and accurate; and through this highly integrated system, various state parameters can be measured simultaneously, with complete functions and high integration, reducing the complexity and cost of the test; in addition, the entire test process is highly integrated and automated, and can automatically collect, process and analyze data and automatically adjust the operating conditions to test the state parameters under all operating conditions.

[0055] For details, please refer to Figure 1 , shows a flowchart of the steps of a method for testing a power generation system according to an embodiment of the present invention; Figure 2 , showing a schematic structural diagram of a power generation system according to an embodiment of the present invention;

[0056] like Figure 2 As shown, the power generation system 200 mentioned in the embodiment of the present invention may include a power generation subsystem 201, a hydrogen-water separation test subsystem 202 and a gas component test subsystem 203; the hydrogen-water separation test subsystem 202 may include a hydrogen-water separation module 205, a water collection module 206 and a first sensor module 207; the hydrogen-water separation module 205 is integrated with a water storage unit; the input end of the hydrogen-water separation module 205 can be connected to the anode side outlet of the power generation subsystem 201; the hydrogen-water separation module 205 is used to separate the liquid water in the first mixed medium output from the anode side outlet and store it in the water storage unit; the water collection module 206 is connected to the mixed medium output end of the hydrogen-water separation module 205; the mixed medium output end of the hydrogen-water separation test subsystem 202 is connected to the input end of the gas component test subsystem 203. Figure 2 The dashed lines in the figure can be electrical connections, and the solid lines can be pipeline connections.

[0057] In an embodiment of the present invention, the power generation subsystem 201 may include a fuel cell stack, and the power generation subsystem 201 may be provided with an anode side outlet, which can output a first mixed medium; the embodiment of the present invention requires liquid water separation of the first mixed medium and measurement of the gaseous components therein.

[0058] The input end of the hydrogen-water separation module 205 in the hydrogen-water separation test subsystem 202 can be connected to the anode side outlet of the power generation subsystem 201 to receive the first mixed medium output from the anode side outlet and separate the liquid water and gaseous components in the first mixed medium to obtain liquid water and a second mixed medium; wherein the liquid water will be stored in the water storage unit integrated in the hydrogen-water separation module 205; the second mixed medium will be input into the water collection module 206 through the mixed medium output end of the hydrogen-water separation module 205, and enter the gas component test subsystem 203 through the water collection module 206; the gas component test subsystem 203 can measure the gaseous components of the obtained second mixed medium. wherein, the output end of the water collection module 206 can be the mixed medium output end of the hydrogen-water separation test subsystem 202.

[0059] In practical applications, the water collection module 206 can also be connected to the mixed medium output end of the hydrogen-water separation module 205. For the first mixed medium, the liquid water not separated by the hydrogen-water separation module 205 will be deposited at the bottom of the pipeline between the hydrogen-water separation module 205 and the water collection module 206. Under the impetus of the second mixed medium, this portion of liquid water will flow into the water collection module 206 and be collected by the water collection module 206. Based on the amount of liquid water collected by the water collection module 206 that was not separated by the hydrogen-water separation module 205, and the amount of liquid water collected by the water storage unit and separated by the hydrogen-water separation module 205, the liquid water separation efficiency of the hydrogen-water separation module 205 can be determined.

[0060] In addition, the first sensor module 207 can also measure state parameters of the first mixed medium and / or the second mixed medium. Based on the measured parameters or data, test data for the power generation system 200 can be generated; this test data can be used to control the power generation system 200; or, this test data can also be used to provide real data as a reference for the design of the ejector, hydrogen-water separation module 205, etc. of the power generation system 200.

[0061] like Figure 1 As shown, the testing method of the power generation system 200 may include the following steps:

[0062] Step 101: When the power generation subsystem is in the target power generation condition, determine the first liquid water volume collected by the water collection module and the second liquid water volume collected by the water storage unit, and determine the separation efficiency of the hydrogen-water separation module based on the first liquid water volume and the second liquid water volume.

[0063] In an embodiment of the present invention, the power generation subsystem 201 can be controlled to achieve a target power generation condition. This target power generation condition can be related to the hydrogen concentration, air concentration, cooling water temperature, etc. supplied to the fuel cell stack. By controlling the hydrogen concentration, air concentration, cooling water temperature, etc. supplied to the fuel cell stack, the power generation subsystem 201 can be placed in different power generation conditions. This embodiment of the present invention can provide more direct and accurate test results by collecting test data from the power generation subsystem 201 under different power generation conditions.

[0064] After the power generation subsystem 201 is in the target power generation condition, the first amount of liquid water collected by the water collection module 206 within a period of time (e.g., 5 minutes) can be determined after the power generation subsystem 201 has been operating stably for a period of time. The first amount of liquid water can be the amount (e.g., mass, volume, etc.) of liquid water that is not separated by the hydrogen-water separation module 205 but is naturally deposited in the first mixed medium during the period of time.

[0065] In addition, a second amount of liquid water collected by the water storage unit during the period of time may also be determined. The second amount of liquid water may be the amount of liquid water separated from the first mixed medium by the hydrogen-water separation module 205 during the period of time.

[0066] After determining the first and second liquid water quantities, the separation efficiency of hydrogen-water separation module 205 for the liquid water in the mixed medium can be calculated based on the first and second liquid water quantities. For example, separation efficiency = M2 / (M1+M2), where M2 is the second liquid water quantity and M1 is the first liquid water quantity.

[0067] Step 102: Obtain the gaseous component parameter data output by the gas component testing subsystem and the second mixed medium detected by the mixed medium output end of the hydrogen-water separation testing subsystem; and obtain the first sensing data detected by the first sensing module for the first mixed medium and / or the second mixed medium.

[0068] In an embodiment of the present invention, after the first mixed medium passes through the hydrogen-water separation module 205 , the liquid water therein will be separated; the mixed medium enters the water collection module 206 as the second mixed medium, and enters the gas component testing subsystem 203 from the water collection module 206 .

[0069] The gas component testing subsystem 203 can measure the second mixed medium to measure the parameters of the gaseous components therein and obtain gaseous component parameter data; for example: the mass flow rate of the second mixed medium, the content of each gaseous component in the second mixed medium, etc.

[0070] Obtain first sensing data obtained by the first sensing module 207 for detecting the first mixed medium and the second mixed medium; illustratively, the first sensing module 207 may be a pressure sensor, a temperature sensor, a humidity sensor, etc.; the first sensing data may be a gas pressure value, a gas temperature value, a gas humidity value, etc. obtained for detecting the first mixed medium, or may be a gas pressure value, a gas temperature value, a gas humidity value, etc. obtained for detecting the second mixed medium, and the embodiment of the present invention does not impose any restrictions on this.

[0071] Step 103: Generate test data for the power generation system according to the separation efficiency, the first sensor data, and the gaseous component parameter data.

[0072] After obtaining the separation efficiency, the first sensor data, and the gaseous component parameter data, test data for the power generation system 200 can be generated based on the separation efficiency, the first sensor data, and the gaseous component parameter data. For example, the separation efficiency, the first sensor data, and the gaseous component parameter data can be combined to obtain the test data.

[0073] In some feasible embodiments, the first sensing module 207 may include a first air pressure sensor arranged at the input end of the hydrogen-water separation module 205, and a second air pressure sensor arranged at the mixed medium output end of the hydrogen-water separation module 205; the first air pressure sensor can output a first air pressure value P1, and the second air pressure sensor can output a second air pressure value P2; based on the first air pressure value and the second air pressure value, the pressure loss value = P1-P2 of the hydrogen-water separation module 205 can be calculated; then, when generating test data, it can be generated based on the pressure loss value.

[0074] In an embodiment of the present invention, when the power generation subsystem 201 is in a target power generation condition, the amount of first liquid water collected by the water collection module 206 and the amount of second liquid water collected by the water storage unit are determined, and the separation efficiency of the hydrogen-water separation module 205 is determined based on the first and second liquid water amounts. Gaseous component parameter data output by the gas composition testing subsystem 203, which is obtained by detecting the second mixed medium output by the mixed medium output terminal of the hydrogen-water separation testing subsystem 202, is obtained. Furthermore, first sensor data detected by the first sensor module 207 for the first mixed medium and / or the second mixed medium is obtained. Test data for the power generation system 200 is generated based on the separation efficiency, the first sensor data, and the gaseous component parameter data. Through this embodiment of the present invention, the water separation efficiency of the hydrogen-water separation module 205 can be tested using a simple device under realistic fuel cell stack operating conditions. Furthermore, the gaseous composition of the mixed medium can be tested based on the first sensor module 207 and the gas composition testing subsystem 203. Through the embodiment of the present invention, the actual working conditions of the power generation subsystem 201 can be truly tested, and the test results are more direct and accurate; and through this highly integrated system, various state parameters can be measured simultaneously, with complete functions and high integration, reducing the complexity and cost of the test; in addition, the entire test process is highly integrated and automated, and can automatically collect, process and analyze data and automatically adjust the working conditions to test the state parameters under all working conditions.

[0075] Reference Figure 3 , which shows a flowchart of another method for testing a power generation system according to an embodiment of the present invention, may include the following steps:

[0076] Step 301, the hydrogen-water separation module is also integrated with a first drain valve, which is arranged at the water outlet of the water storage unit; a water quantity detection unit is provided in the water collection module; when the power generation subsystem is in the target power generation condition, after the power generation subsystem is in the target power generation condition for a target period of time, the first liquid water quantity is determined according to the first water quantity detection data output by the water quantity detection unit.

[0077] In some feasible embodiments, the hydrogen-water separation module 205 may further be integrated with a first drain valve 209, which may be provided at the water outlet of the water storage unit, which may be connected to the water collection module 206. By controlling the opening of the first drain valve 209, the water in the water storage unit may be transported to the water collection module 206. Thus, only a water level detection unit need be provided in the drain module to complete two water level measurements. The water level detection unit may be used to detect the height of the liquid water in the water collection module 206, the volume of the liquid water in the water collection module 206, or the weight of the liquid water in the water collection module 206, and this is not limited in the present embodiment.

[0078] After the power generation subsystem 201 is in the target power generation condition, the power generation subsystem 201 can be kept running stably for a period of time (i.e., the target duration), and then the water volume detection unit can be controlled to measure the liquid water in the water collection module 206 to obtain the first water volume detection data; the first water volume detection data can be the height or volume of the liquid water in the water collection module 206.

[0079] After obtaining the first water volume detection data, the amount of liquid water that is not separated by the hydrogen-water separation module 205 but naturally deposited in the first mixed medium within the target time period, that is, the first liquid water volume, can be calculated based on the first water volume detection data.

[0080] Exemplarily, the first water volume detection data can be the height h1 of the liquid water in the water collection module 206; based on the bottom area s of the water collection module 206, the density of water, and the first water volume detection data, the first liquid water volume = ρ*h1*s can be calculated; wherein, ρ is the density of the liquid water in the water collection module 206 determined based on the physical properties of the liquid water.

[0081] Step 302: Open the first drain valve, and after all the liquid water stored in the water storage unit enters the water collection module, determine the third liquid water volume according to the second water volume detection data output by the water volume detection unit.

[0082] After the first liquid water amount is determined, the first drain valve 209 may be opened to output all the liquid water stored in the water storage unit to the water collection module 206 .

[0083] After all the liquid water stored in the water storage unit is output to the water collection module 206, the water quantity detection unit can be called to measure the liquid water in the water collection module 206 again to obtain second water quantity detection data; the liquid water targeted by the second water quantity detection data includes the liquid water separated by the hydrogen-water separation module 205 and the liquid water not separated by the clean water separation module.

[0084] After obtaining the second water volume detection data, the third liquid water volume, ie, the weight of all liquid water currently stored in the water collection module 206 , may be determined based on the second water volume detection data.

[0085] Exemplarily, the second water volume detection data may be the height h2 of the liquid water in the water collection module 206 ; based on the bottom area s of the water collection module 206 , the density of water, and the second water volume detection data, the second liquid water volume = ρ*h2*s may be calculated.

[0086] Step 303: Determine the second liquid water volume according to the third liquid water volume and the first liquid water volume.

[0087] After obtaining the third liquid water volume and the first liquid water volume, the mass of liquid water discharged from the water storage unit into the water collection module 206, i.e., the second liquid water volume, can be determined based on the difference between the third liquid water volume and the first liquid water volume. This embodiment of the present invention allows the separation efficiency of the hydrogen-water separation module to be measured solely based on the water volume detection unit provided in the water collection module 206, resulting in low cost.

[0088] Step 304: Determine the separation efficiency of the hydrogen-water separation module according to the first liquid water amount and the second liquid water amount.

[0089] After determining the first liquid water amount and the second liquid water amount, the separation efficiency of the hydrogen-water separation module 205 on the liquid water in the mixed medium may be calculated based on the first liquid water amount and the second liquid water amount.

[0090] Step 305: Obtain the gaseous component parameter data output by the gas component testing subsystem and the second mixed medium detected by the mixed medium output end of the hydrogen-water separation testing subsystem; and obtain the first sensing data detected by the first sensing module for the first mixed medium and / or the second mixed medium.

[0091] After the first mixed medium passes through the hydrogen-water separation module 205 , the liquid water therein will be separated; the mixed medium enters the water collection module 206 as the second mixed medium, and then enters the gas component testing subsystem 203 from the water collection module 206 .

[0092] The gas component testing subsystem 203 can measure the second mixed medium to measure the parameters of the gaseous components therein and obtain gaseous component parameter data; for example: the mass flow rate of the second mixed medium, the content of each gaseous component in the second mixed medium, etc.

[0093] The first sensing data obtained by the first sensing module 207 for detecting the first mixed medium and the second mixed medium is obtained; illustratively, the first sensing module 207 may be an air pressure sensor, a temperature sensor, a humidity sensor, and the like.

[0094] Step 306: Generate test data for the power generation system based on the separation efficiency, the first sensor data, and the gaseous component parameter data.

[0095] After obtaining the separation efficiency, the first sensor data, and the gaseous component parameter data, test data for the power generation system 200 can be generated based on the separation efficiency, the first sensor data, and the gaseous component parameter data. For example, the separation efficiency, the first sensor data, and the gaseous component parameter data can be combined to obtain the test data.

[0096] In some feasible embodiments, the first sensing module 207 may include a first air pressure sensor arranged at the input end of the hydrogen-water separation module 205, and a second air pressure sensor arranged at the mixed medium output end of the hydrogen-water separation module 205; the first air pressure sensor can output a first air pressure value P1, and the second air pressure sensor can output a second air pressure value P2; based on the first air pressure value and the second air pressure value, the pressure loss value = P1-P2 of the hydrogen-water separation module 205 can be calculated; then, when generating test data, it can be generated based on the pressure loss value.

[0097] Step 307: A second drain valve is provided on the water collection module; after generating test data for the power generation system, the first drain valve and the second drain valve are opened.

[0098] In some feasible embodiments, a second drain valve 210 is provided on the water collection module 206; after completing a single operating condition test, that is, after generating test data for the power generation system 200, the first drain valve 209 and the second drain valve 210 can be opened.

[0099] Step 308: Input purge gas from the anode side outlet to the hydrogen-water separation test system.

[0100] After opening first drain valve 209 and second drain valve 210, a purge gas (e.g., nitrogen) can be filled into power generation subsystem 201 to drain all residual hydrogen and liquid water in the pipeline through first drain valve 209 and second drain valve 210. After the purge is completed, first drain valve 209 and second drain valve 210 can be closed, and the system can be switched to the next power generation mode for testing, thereby completing testing under different power generation conditions.

[0101] In one embodiment of the present invention, the above method may further include the following steps:

[0102] The power generation subsystem 201 is controlled according to the test data.

[0103] In some feasible embodiments, an ejector may be provided in the power generation subsystem 201; after obtaining the test data, the hydrogen-water separation module 205 may be controlled to adjust the separation efficiency of the hydrogen-water separation module 205; in addition, the ejector may also be adjusted based on the test data to adapt to the current power generation conditions.

[0104] In other feasible embodiments, after obtaining the test data, it can also be used as the test data obtained based on the actual measurement to provide real and complete data and verification conditions for designing the hydrogen-water separator, ejector, and nitrogen exhaust strategy at the anode side outlet.

[0105] In an embodiment of the present invention, the hydrogen-water separation module 205 is further integrated with a first drain valve 209, which is arranged at the water outlet of the water storage unit; a water quantity detection unit is provided in the water collection module 206; when the power generation subsystem 201 is in the target power generation condition, after the power generation subsystem 201 is in the target power generation condition for a target period of time, the first liquid water quantity is determined according to the first water quantity detection data output by the water quantity detection unit; after the first drain valve 209 is opened and all the liquid water stored in the water storage unit enters the water collection module 206, the third liquid water quantity is determined according to the second water quantity detection data output by the water quantity detection unit; the second liquid water quantity is determined according to the third liquid water quantity and the first liquid water quantity; the second liquid water quantity is determined according to the first liquid water quantity and the second liquid water quantity. The method further comprises: determining the separation efficiency of the hydrogen-water separation module 205 by measuring the amount of water; obtaining the gaseous component parameter data output by the gas component testing subsystem 203 and detected for the second mixed medium output by the mixed medium output terminal of the hydrogen-water separation testing subsystem 202; and obtaining the first sensor data detected by the first sensor module 207 for the first mixed medium and / or the second mixed medium; generating test data for the power generation system 200 based on the separation efficiency, the first sensor data, and the gaseous component parameter data; providing a second drain valve 210 on the water collection module 206; opening the first drain valve 209 and the second drain valve 210 after generating the test data for the power generation system 200; and inputting a purge gas from the anode side outlet into the hydrogen-water separation testing system. Through the embodiment of the present invention, the water separation efficiency of the hydrogen-water separation module 205 can be tested based on a simple device under the actual operating conditions of the fuel cell stack; and the gaseous component of the mixed medium can be tested based on the first sensor module 207 and the gas component testing subsystem 203. Through the embodiment of the present invention, the actual working conditions of the power generation subsystem 201 can be truly tested, and the test results are more direct and accurate; and through this highly integrated system, various state parameters can be measured simultaneously, with complete functions and high integration, reducing the complexity and cost of the test; in addition, the entire test process is highly integrated and automated, and can automatically collect, process and analyze data and automatically adjust the working conditions to test the state parameters under all working conditions.

[0106] In one embodiment of the present invention, Figure 2 As shown, the power generation system 200 may further include a test control subsystem 204; the above test method may be implemented by the test control subsystem 204. Specifically:

[0107] The power generation system 200 includes a power generation subsystem 201, a hydrogen-water separation test subsystem 202, a gas component test subsystem 203, and a test control subsystem 204; wherein:

[0108] The hydrogen-water separation test subsystem 202 includes a hydrogen-water separation module 205, a water collection module 206, and a first sensor module 207; the hydrogen-water separation module 205 is integrated with a water storage unit;

[0109] The input end of the hydrogen-water separation module 205 is connected to the anode side outlet of the power generation subsystem 201; the hydrogen-water separation module 205 is used to separate the liquid water in the first mixed medium output from the anode side outlet and store it in the water storage unit; the water collection module 206 is connected to the mixed medium output end of the hydrogen-water separation module 205;

[0110] The mixed medium output end of the hydrogen-water separation test subsystem 202 is connected to the input end of the gas component test subsystem 203; the gas component test subsystem 203 is used to test the gaseous components in the second mixed medium output by the hydrogen-water separation test system;

[0111] The test control subsystem 204 is connected to the hydrogen-water separation test system, the power generation subsystem 201 and the gas component test system; the test control subsystem 204 is used to determine the first liquid water volume collected by the water collection module 206 and the second liquid water volume collected by the water storage unit when the power generation subsystem 201 is in the target power generation condition, and determine the separation efficiency of the hydrogen-water separation module 205 based on the first liquid water volume and the second liquid water volume; obtain the gas component parameter data output by the gas component test subsystem 203 and the gas component parameter data obtained by detecting the second mixed medium output from the mixed medium output end of the hydrogen-water separation test subsystem 202; and obtain the first sensor data detected by the first sensor module 207 for the first mixed medium and / or the second mixed medium; generate test data for the power generation system 200 based on the separation efficiency, the first sensor data, and the gas component parameter data.

[0112] In some feasible embodiments, the test control subsystem 204 can be respectively connected to the hydrogen-water separation test system, the power generation subsystem 201, and the gas composition test system; in actual application, the test control subsystem 204 can first control the power generation subsystem 201 to place the power generation subsystem 201 in a target power generation condition; the target power generation condition can be related to the hydrogen concentration, air concentration, cooling water temperature, etc. provided to the fuel cell stack; by controlling the hydrogen concentration, air concentration, cooling water temperature, etc. provided to the fuel cell stack, the power generation subsystem 201 can be placed in different power generation conditions. The embodiment of the present invention can provide more direct and accurate test results by testing the test data of the power generation subsystem 201 under different power generation conditions.

[0113] After the power generation subsystem 201 is in the target power generation condition, the test control subsystem 204 can wait for the power generation subsystem 201 to operate stably for a period of time and then determine a first amount of liquid water collected by the water collection module 206 within a period of time (e.g., 5 minutes). The first amount of liquid water can be the amount (e.g., mass, volume, etc.) of liquid water that is not separated by the hydrogen-water separation module 205 but is naturally deposited in the first mixed medium during the period of time.

[0114] In addition, the test control subsystem 204 can also determine a second amount of liquid water collected by the water storage unit during the period of time. The second amount of liquid water can be the amount of liquid water separated from the first mixed medium by the hydrogen-water separation module 205 during the period of time.

[0115] After determining the first and second liquid water quantities, test control subsystem 204 can calculate the separation efficiency of hydrogen-water separation module 205 for the liquid water in the mixed medium based on the first and second liquid water quantities. For example, separation efficiency = M2 / (M1+M2), where M2 is the second liquid water quantity and M1 is the first liquid water quantity.

[0116] In an embodiment of the present invention, after the first mixed medium passes through the hydrogen-water separation module 205 , the liquid water therein will be separated; the mixed medium enters the water collection module 206 as the second mixed medium, and enters the gas component testing subsystem 203 from the water collection module 206 .

[0117] The gas component testing subsystem 203 can measure the second mixed medium to measure the parameters of the gaseous components therein and obtain gaseous component parameter data; for example: the mass flow rate of the second mixed medium, the content of each gaseous component in the second mixed medium, etc.

[0118] On the other hand, the test control subsystem 204 can also obtain the first sensing data obtained by the first sensing module 207 for detecting the first mixed medium and the second mixed medium.

[0119] After obtaining the separation efficiency, the first sensor data, and the gaseous component parameter data, the test control subsystem 204 may generate test data for the power generation system 200 based on the separation efficiency, the first sensor data, and the gaseous component parameter data. For example, the separation efficiency, the first sensor data, and the gaseous component parameter data may be combined to obtain the test data.

[0120] In some feasible embodiments, the first sensing module 207 may include a first air pressure sensor arranged at the input end of the hydrogen-water separation module 205, and a second air pressure sensor arranged at the mixed medium output end of the hydrogen-water separation module 205; the first air pressure sensor can output a first air pressure value P1, and the second air pressure sensor can output a second air pressure value P2; based on the first air pressure value and the second air pressure value, the test control subsystem 204 can calculate the pressure loss value of the hydrogen-water separation module 205 = P1-P2; then, when generating test data, the test control subsystem 204 can generate based on the pressure loss value.

[0121] Exemplarily, the first sensing module 207 may include at least one of a pressure sensor, a temperature sensor, and a humidity sensor. The first sensing data may be a gas pressure value, a gas temperature value, a gas humidity value, etc. detected for the first mixed medium, or a gas pressure value, a gas temperature value, a gas humidity value, etc. detected for the second mixed medium, without limitation in this embodiment of the present invention.

[0122] In one embodiment of the present invention, Figure 4 As shown, the power generation subsystem 201 may include:

[0123] A stack module 218 includes a stack 219 and a stack voltage monitoring device 220;

[0124] A water cooling module 221 is used to provide cooling to the stack module 218;

[0125] The air supply and exhaust module 222 is used to provide reaction air to the fuel cell module 218 and exhaust the air after the reaction is completed;

[0126] The hydrogen supply module 223 is used to provide hydrogen to the fuel cell stack module 218 .

[0127] In some feasible embodiments, the battery stack module may include a battery stack 219 to be tested and a battery stack voltage monitoring device 220 (CVM, Cell Voltage Monito). The battery stack 219 is composed of multiple power generation unit batteries. The reaction media hydrogen and air are provided by the air supply and exhaust module 222 and the hydrogen supply module 223. The batteries of the battery stack 219 can undergo redox reactions of hydrogen and oxygen to generate electrical energy, and the voltage of each power generation unit is monitored and tested in real time through the battery stack voltage monitoring device 220 to accurately characterize the real-time operating status of the batteries of the battery stack 219.

[0128] The water cooling module 221 may include a coolant storage tank 224, a water pump 225, a first shut-off valve 226, a first temperature and pressure sensor 227, a second temperature and pressure sensor 228, and a first flow meter 229. The water inlet of the stack module 218 is connected to the output of the first temperature and pressure sensor 227, the input of the first temperature and pressure sensor 227 is connected to the output of the first flow meter 229, and the input of the first flow meter 229 is connected to the water pump 225. The water pump 225 is also connected to the water outlet of the coolant storage tank 224. The return water outlet of the water pump 225 is connected to the output of the first shut-off valve 226, the input of the first shut-off valve 226 is connected to the output of the second temperature and pressure sensor 228, and the input of the second temperature and pressure sensor 228 is connected to the water outlet of the stack module 218. The water cooling module 221 can provide the stack module 218 with the cooling water required for the reaction of the stack 219.

[0129] According to the power generation operating conditions input by the fuel cell stack 219, the test control subsystem 204 controls the flow of cooling water by controlling the power of the water pump 225 of the water cooling module 221, and controls whether the flow of cooling water reaches the set flow value through the reading of the first flow meter 229; controls the pressure of cooling water by controlling the opening of the first stop valve 226, and monitors whether the pressure of cooling water reaches the set pressure value through the reading of the second temperature and pressure sensor 228; controls the temperature of cooling water by adjusting the heating power of the coolant storage tank 224 with electric heating and cooling fan, and monitors whether the temperature of cooling water reaches the set temperature value through the reading of the first temperature and pressure sensor 227; controls the opening and closing of the water replenishment and drainage device of the coolant storage tank 224 to meet the water replenishment and drainage needs of the coolant storage tank 224; the water cooling module 221 can provide cooling water of a certain temperature, pressure and flow to the fuel cell stack module 218.

[0130] The air supply and exhaust module 222 may include a compressed gas source 230, a first proportional valve 231, a second flow meter 232, an air filter 233, an electric heating device 234, an electric heating device 235, a second stop valve 236, a third temperature and pressure sensor 237, a third stop valve 238, an air-water separator 239, and a muffler 240; wherein the compressed gas source 230 is connected to the input end of the first proportional valve 231; the output end of the first proportional valve 231 is connected to the input end of the second flow meter 232, the output end of the second flow meter 232 is connected to the input end of the air filter 233, and the output end of the air filter 233 is connected to the input end of the air filter 233. The end of the electric heater 234 is connected to the input end of the electric heater 235, the output end of the electric heater 235 is connected to the input end of the second stop valve 236, the output end of the second stop valve 236 is connected to the input end of the third temperature and pressure sensor 237, the output end of the third temperature and pressure sensor 237 is connected to the air inlet of the fuel cell stack 219, the air outlet of the fuel cell stack 219 is connected to the input end of the third stop valve 238, the output end of the third stop valve 238 is connected to the air-water separator 239, and the air-water separator 239 is also connected to the muffler 240. The air supply and exhaust module 222 can be used to provide reaction air to the fuel cell stack module 218 and exhaust the air after the reaction is completed.

[0131] Exemplarily, based on the operating conditions input by the fuel cell stack 219, the test control subsystem 204 controls the air flow entering the fuel cell stack 219 by controlling the opening of the first proportional valve 231 of the air supply and exhaust module 222, and monitors whether the air flow reaches the set flow value through the reading of the second flowmeter 232. The air temperature is adjusted and controlled by controlling the opening and power of the electric heater 234, and the air temperature and humidity are monitored by the first temperature and humidity sensor to ensure that they reach the set temperature and humidity values. The air pressure is adjusted by controlling the second stop valve 236 and the third stop valve 238, and the air pressure is monitored by the reading of the third temperature and pressure sensor 237 to ensure that the air pressure reaches the set pressure value. The function of the air filter 233 is to remove impurities from the air to provide the fuel cell stack 219 with clean reaction air that meets the specified temperature, pressure, flow rate, and humidity. After the reaction, the air passes through the gas-water separator 239 to remove moisture from the gas and is silenced by the muffler 240 before being discharged directly into the atmosphere.

[0132] The hydrogen supply module 223 may include a hydrogen source 241 (for example, a hydrogen cylinder), a first pressure reducing valve 242, a second pressure reducing valve 243, a second proportional valve 244, a third flowmeter 245, a second temperature and humidity sensor 246, and a fourth temperature and pressure sensor 247; the hydrogen source 241 may be connected to the input end of the first pressure reducing valve 242, the output end of the first pressure reducing valve 242 may be connected to the input end of the second pressure reducing valve 243, the output end of the second pressure reducing valve 243 may be connected to the input end of the second proportional valve 244, the output end of the second proportional valve 244 may be connected to the input end of the third flowmeter 245, the output end of the third flowmeter 245 may be connected to the input end of the second temperature and humidity sensor 246, the output end of the second temperature and humidity sensor 246 may be connected to the input end of the fourth temperature and pressure sensor 247, and the output end of the fourth temperature and pressure sensor 247 may be connected to the hydrogen inlet of the fuel cell stack 219 to provide hydrogen for reaction to the fuel cell stack 219.

[0133] Exemplarily, based on the operating conditions input by the fuel cell stack 219, the test control subsystem 204 controls the pressure of hydrogen entering the fuel cell stack 219 from the hydrogen source 241 by controlling the first pressure reducing valve 242 and the second pressure reducing valve 243, and monitors whether the hydrogen pressure reaches the set pressure value through the reading of the fourth temperature and pressure sensor 247; controls the flow of hydrogen in the air supply system by controlling the opening of the second proportional valve 244, monitors whether the hydrogen flow reaches the set flow value through the reading of the third flowmeter 245, and tests the temperature and humidity of the hydrogen through the second temperature and humidity sensor 246; the temperature of the hydrogen is based on the actual ambient temperature and is not controlled separately. If the hydrogen temperature needs to be regulated, the components such as the hydrogen source 241 can be placed in an environmental chamber, and the temperature in the environmental chamber can be adjusted to simulate the different environmental conditions in which the fuel cell stack 219 is actually used. The hydrogen supply module 223 can provide the fuel cell stack 219 with a certain temperature, pressure and flow of reaction hydrogen.

[0134] In some feasible embodiments, the water cooling module 221 , the air supply and exhaust module 222 , and the hydrogen supply module 223 may constitute a test auxiliary subsystem.

[0135] In one embodiment of the present invention, the hydrogen-water separation module 205 is further integrated with a first drain valve 209, which is provided at the water outlet of the water storage unit; the water collection module 206 is provided with a water volume detection unit;

[0136] The test control subsystem 204 is used to determine the first liquid water volume according to the first water volume detection data output by the water volume detection unit after the power generation subsystem 201 has been in the target power generation condition for the target time; open the first drain valve 209, and after all the liquid water stored in the water storage unit enters the water collection module 206, determine the third liquid water volume according to the second water volume detection data output by the water volume detection unit; determine the second liquid water volume according to the third liquid water volume and the first liquid water volume.

[0137] In some feasible embodiments, the hydrogen-water separation module 205 may further be integrated with a first drain valve 209, which may be provided at the water outlet of the water storage unit, which may be connected to the water collection module 206. By controlling the opening of the first drain valve 209, the water in the water storage unit may be transported to the water collection module 206. Thus, only a water level detection unit need be provided in the drain module to complete two water level measurements. The water level detection unit may be used to detect the height of the liquid water in the water collection module 206, the volume of the liquid water in the water collection module 206, or the weight of the liquid water in the water collection module 206, and this is not limited in the present embodiment.

[0138] After the power generation subsystem 201 is in the target power generation condition, the test control subsystem 204 can control the water volume detection unit to measure the liquid water in the water collection module 206 after the power generation subsystem 201 has been running stably for a period of time (i.e., the target duration) to obtain the first water volume detection data; the first water volume detection data can be the height or volume of the liquid water in the water collection module 206.

[0139] After obtaining the first water volume detection data, the test control subsystem 204 can calculate the amount of liquid water that is not separated by the hydrogen-water separation module 205 but naturally deposited in the first mixed medium within the target time period based on the first water volume detection data, that is, the first liquid water volume.

[0140] Exemplarily, the first water volume detection data can be the height h1 of the liquid water in the water collection module 206; based on the bottom area s of the water collection module 206, the density of water, and the first water volume detection data, the test control subsystem 204 can calculate the first liquid water volume = ρ*h1*s; wherein, ρ is based on the physical properties of liquid water, and the density of the liquid water in the water collection module 206 is determined.

[0141] After determining the first liquid water amount, the test control subsystem 204 may open the first drain valve 209 to output all the liquid water stored in the water storage unit to the water collection module 206 .

[0142] After all the liquid water stored in the water storage unit is output to the water collection module 206, the test control subsystem 204 can call the water quantity detection unit to measure the liquid water in the water collection module 206 again to obtain second water quantity detection data; the liquid water targeted by the second water quantity detection data includes the liquid water separated by the hydrogen-water separation module 205 and the liquid water not separated by the clean water separation module.

[0143] After obtaining the second water volume detection data, the test control subsystem 204 may determine the third liquid water volume, ie, the weight of all liquid water currently stored in the water collection module 206 , based on the second water volume detection data.

[0144] Exemplarily, the second water volume detection data can be the height h2 of the liquid water in the water collection module 206; based on the bottom area s of the water collection module 206, the density of water, and the second water volume detection data, the test control subsystem 204 can calculate the second liquid water volume = ρ*h2*s.

[0145] After obtaining the third liquid water volume and the first liquid water volume, the test control subsystem 204 can determine the mass of liquid water discharged from the water storage unit into the water collection module 206, that is, the second liquid water volume, based on the difference between the third liquid water volume and the first liquid water volume.

[0146] In one embodiment of the present invention, a second drain valve 210 is provided on the water collection module 206;

[0147] The test control subsystem 204 is further configured to open the first drain valve 209 and the second drain valve 210 after generating test data for the power generation system 200 ; and input purge gas from the anode side outlet to the hydrogen-water separation test system.

[0148] In some feasible embodiments, a second drain valve 210 is provided on the water collection module 206; after completing a single operating condition test, that is, after generating test data for the power generation system 200, the test control subsystem 204 can open the first drain valve 209 and the second drain valve 210.

[0149] After opening first drain valve 209 and second drain valve 210, test control subsystem 204 can control the flow of purge gas (e.g., nitrogen) into power generation subsystem 201 to drain all residual hydrogen and liquid water in the pipeline through first drain valve 209 and second drain valve 210. After the purge is complete, first drain valve 209 and second drain valve 210 can be closed, and the system can be switched to the next power generation mode for testing. For example, test control subsystem 204 can switch hydrogen source 241 to a nitrogen source to fill power generation subsystem 201 with nitrogen.

[0150] In one embodiment of the present invention, Figure 3As shown, the hydrogen-water separation test subsystem 202 may further include a fourth stop valve 211; the fourth stop valve 211 may be arranged on the water collection module 206, and the output end of the fourth stop valve 211 may be connected to the first sensor module 207; specifically, the first sensor module 207 may include a fifth temperature and pressure sensor 212 and a third temperature and humidity sensor 213; the output end of the fourth stop valve 211 may be connected to the input end of the fifth temperature and pressure sensor 212, and the output end of the fifth temperature and pressure sensor 212 may be connected to the input end of the third temperature and humidity sensor 213.

[0151] The gas composition test subsystem 203 may include a mass flowmeter 214, a pressure regulating valve 215, a mass spectrometer 216, and a data acquisition module 217. The output of the third temperature and humidity sensor 213 may be connected to the input of the mass flowmeter 214, which in turn may be connected to the input of the pressure regulating valve 215, which in turn may be connected to the mass spectrometer 216. The data acquisition module 217 may be connected to the mass flowmeter 214 and the mass spectrometer 216, respectively. The second mixed medium contains hydrogen, oxygen, and gaseous water. The mass flow rate of the second mixed medium can be measured in a timely manner by the mass flowmeter 214. The second mixed medium is stabilized by the pressure regulating valve 215 and then input into the mass spectrometer 216 for sampling and analysis, thereby measuring the proportions and concentrations of hydrogen, nitrogen, and gaseous water in the second mixed medium. The data is uniformly sent to the test control subsystem 204 for recording and processing by the data acquisition module 217.

[0152] This allows for the measurement of all state parameters of the second mixed medium under specific power generation conditions, including temperature, pressure, flow rate, and detailed component ratios. These real-world state parameters provide effective data support for ejector design and nitrogen removal strategies.

[0153] In some feasible embodiments, the hydrogen-water separation module 205 is also integrated with a nitrogen and hydrogen exhaust valve 208; in actual applications, the mixed medium output from the anode side outlet still contains hydrogen, which can be re-input into the cathode side for reaction; however, as the reaction continues, the hydrogen content output from the anode side becomes less and less, and the nitrogen content becomes more and more. Therefore, it is necessary to open the nitrogen and hydrogen exhaust valve 208 when the hydrogen content is low to discharge the mixed medium mixed with more nitrogen.

[0154] For example, the timing for opening the nitrogen and hydrogen exhaust valve 208 can be determined based on the ratio of hydrogen to nitrogen in the test data; for example, when the nitrogen concentration represented by the test data exceeds a preset value, the test control subsystem 204 controls the nitrogen and hydrogen exhaust valve 208 to open, and this embodiment of the present invention is not limited to this.

[0155] The following further describes the test method based on the power generation system 200 through a specific example. Figure 5 , which shows a flow chart of the steps of a testing method according to an embodiment of the present invention:

[0156] The test control subsystem 204 integrates the control of several other subsystems and is responsible for ensuring the supply of air, hydrogen, and cooling water at the specific temperature, pressure, and flow rate required by the fuel cell stack 219. It is also responsible for real-time measurement and calculation of the separation efficiency of the hydrogen-water separation module 205 and recording real-time data measured for the mixed medium. Furthermore, after one power generation condition stabilizes and the test is completed, the test of the next power generation condition can be automatically executed, thereby automatically completing the testing of the anode outlet under the full power generation conditions required by the fuel cell stack 219.

[0157] Test steps: After the system is built, the test control subsystem 204 can first input the stack operating conditions to the test auxiliary subsystem to enable each subsystem in the test auxiliary subsystem to reach the test condition (ie, the target power generation condition).

[0158] The test auxiliary subsystem is adjusted through the test control subsystem 204 to control the first proportional valve 231, the electric heating device 234, the second stop valve 236, the third temperature and pressure sensor 237, and the third stop valve 238 of the air supply and exhaust module 222, and monitor the electric heating device 235, the third temperature and pressure sensor 237, and the second flow meter 232 to meet the air temperature, pressure, and flow requirements corresponding to the target power generation conditions.

[0159] Control the first pressure reducing valve 242, the second pressure reducing valve 243, and the second proportional valve 244 of the hydrogen supply module 223, and monitor the third flow meter 245, the second temperature and humidity sensor 246, and the fourth temperature and pressure sensor 247 to meet the hydrogen temperature, pressure, and flow requirements corresponding to the target power generation conditions.

[0160] Control the water pump 225, the first shut-off valve 226 and the coolant storage tank 224 of the water cooling module 221, and ensure that the cooling water temperature, pressure and flow required by the operating conditions are met by monitoring the first flow meter 229 and the first temperature and pressure sensor 227 and the second temperature and pressure sensor 228 of the water cooling system.

[0161] After reaching the target power generation condition required by the stack 219, the stack 219 operates under given conditions. During the operation, the anode side outlet (i.e. Figure 3 The hydrogen outlet in the fuel cell stack 219 will discharge the substances after the reaction. The first mixed medium contains liquid water, hydrogen, nitrogen and gaseous water.

[0162] After the liquid water in the first mixed medium passes through the hydrogen-water separation module 205, the liquid water is separated and stored in the water storage unit of the hydrogen-water separation module 205. The residual liquid water continues to flow with the flowing second mixed medium and enters the water collection module 206; after a period of time t, the test control subsystem 204 reads the liquid level value of the liquid level sensor (i.e., the water level detection unit) and multiplies it by the bottom area of ​​the water collection module 206. It can calculate the volume of liquid water not separated by the hydrogen-water separation module in real time, and based on the density of the liquid water, calculate the mass M1 of the liquid water not separated by the hydrogen-water separation module.

[0163] Test control subsystem 204 controls the opening of first drain valve 209, draining the liquid water accumulated in the water storage unit of hydrogen-water separation module 205 into water collection module 206. The mass flow rate M2 of the mixed liquid water is calculated, and the separation efficiency of hydrogen-water separation module 205 is calculated as (M2-M1) / M2. The temperature and pressure sensor at the front end of hydrogen-water separation module 205 measures the pressure P1 of the first mixed medium, and the fifth temperature and pressure sensor 212 at the rear end of water collection module 206 measures the pressure P2 of the second mixed medium. The pressure loss value of hydrogen-water separation module 205 is calculated as P1-P2.

[0164] After the liquid water is separated, only residual gas remains in the second mixed medium, including hydrogen, nitrogen and gaseous water. The second mixed medium passes through the fifth temperature and pressure sensor 212, the third temperature and humidity sensor 213 and the mass flow meter 214 to measure the temperature, pressure, mass flow, humidity and other state parameters of the second mixed medium, and then enters the mass spectrometer 216 after being stabilized by the pressure regulating valve 215.

[0165] The data acquisition module 217 of the mass spectrometer 216 collects and analyzes the components of the mixed gas, and combined with the state parameters of the second mixed medium, the detailed component data of the various component gases in the second mixed medium can be obtained in real time. Based on the real-time data, a nitrogen removal strategy for the hydrogen circulation system can be scientifically and rationally formulated, and accurate all state parameters are provided for the design of the ejector so that the ejector can match the hydrogen circulation requirements under various operating conditions. The mixed gas analyzed by the mass spectrometer 216 contains hydrogen, which can be connected to the exhaust end of the air supply and exhaust module 222 through a pipeline, and is discharged into the atmosphere after being silenced by the muffler 240 together with the discharged air.

[0166] After the operation and measurement of a target power generation condition are completed, the test control subsystem 204 records, processes and analyzes the relevant data, and automatically switches the operating conditions of the next power generation condition until the switching and recording of all power generation condition operating conditions are completed, and the test is completed.

[0167] It should be noted that for the sake of simplicity, the method embodiments are described as a series of actions. However, those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in this specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0168] Reference Figure 6 , shows a schematic structural diagram of a testing device for a power generation system according to an embodiment of the present invention, which may include the following modules:

[0169] The first collection module 601 is used to determine the amount of first liquid water collected by the water collection module and the amount of second liquid water collected by the water storage unit when the power generation subsystem is in the target power generation condition, and determine the separation efficiency of the hydrogen-water separation module based on the first liquid water amount and the second liquid water amount;

[0170] The second collection module 602 is configured to obtain gaseous component parameter data output by the gas component testing subsystem and detected from the second mixed medium output by the mixed medium output terminal of the hydrogen-water separation testing subsystem; and obtain first sensor data detected by the first sensor module for the first mixed medium and / or the second mixed medium;

[0171] The generating module 603 is used to generate test data for the power generation system according to the separation efficiency, the first sensor data, and the gaseous component parameter data.

[0172] In one embodiment of the present invention, the hydrogen-water separation module is also integrated with a first drain valve, which is arranged at the water outlet of the water storage unit; a water quantity detection unit is provided in the water collection module; a first collection module 601 is used to determine the first liquid water quantity according to the first water quantity detection data output by the water quantity detection unit after the power generation subsystem is in the target power generation condition for a target period of time; after the first drain valve is opened and all the liquid water stored in the water storage unit enters the water collection module, the third liquid water quantity is determined according to the second water quantity detection data output by the water quantity detection unit; and the second liquid water quantity is determined based on the third liquid water quantity and the first liquid water quantity.

[0173] In one embodiment of the present invention, a second drain valve is provided on the water collection module; the device further comprises:

[0174] a control module, configured to open the first drain valve and the second drain valve after generating test data for the power generation system;

[0175] The purge gas is input into the hydrogen-water separation test system from the anode side outlet.

[0176] In one embodiment of the present invention, the control module is further configured to control the power generation subsystem according to the test data.

[0177] In an embodiment of the present invention, when the power generation subsystem is in the target power generation condition, the amount of first liquid water collected by the water collection module and the amount of second liquid water collected by the water storage unit are determined, and the separation efficiency of the hydrogen-water separation module is determined based on the first liquid water amount and the second liquid water amount; the gaseous component parameter data output by the gas component testing subsystem and detected for the second mixed medium output by the mixed medium output end of the hydrogen-water separation testing subsystem are obtained; and the first sensor data detected by the first sensor module for the first mixed medium and / or the second mixed medium are obtained; based on the separation efficiency, the first sensor data, and the gaseous component parameter data, test data for the power generation system is generated. Through the embodiment of the present invention, the water separation efficiency of the hydrogen-water separation module can be tested based on a simple device when the fuel cell stack is in the actual operating condition; in addition, the gaseous component of the mixed medium can be tested based on the first sensor module and the gas component testing subsystem. Through the embodiments of the present invention, the actual working conditions of the power generation electronic system can be truly tested, and the test results are more direct and accurate; and through this highly integrated system, various state parameters can be measured simultaneously, with complete functions and high integration, reducing the complexity and cost of the test; in addition, the entire test process is highly integrated and automated, and can automatically collect, process and analyze data and automatically adjust the working conditions to test the state parameters under all working conditions.

[0178] An embodiment of the present invention further provides an electronic device, which may include a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the above-mentioned power generation system testing method is implemented.

[0179] An embodiment 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 above-mentioned method for testing a power generation system is implemented.

[0180] As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0181] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0182] Those skilled in the art will appreciate that embodiments of the present invention may be provided as methods, apparatus, or computer program products. Thus, embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0183] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the process in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0184] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0185] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0186] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic creative concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0187] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0188] The above is a detailed introduction to the power generation system, testing method, device, electronic equipment and medium provided. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A method for testing a power generation system, characterized in that: The power generation system includes a power generation subsystem, a hydrogen-water separation test subsystem and a gas component test subsystem; the hydrogen-water separation test subsystem includes a hydrogen-water separation module, a water collection module and a first sensor module; the hydrogen-water separation module is integrated with a water storage unit; the input end of the hydrogen-water separation module is connected to the anode side outlet of the power generation subsystem; the hydrogen-water separation module is used to separate liquid water in the first mixed medium output from the anode side outlet and store it in the water storage unit; the water collection module is connected to the mixed medium output end of the hydrogen-water separation module; the mixed medium output end of the hydrogen-water separation test subsystem is connected to the input end of the gas component test subsystem; the method includes: When the power generation subsystem is in a target power generation condition, determining a first amount of liquid water collected by the water collection module and a second amount of liquid water collected by the water storage unit, and determining a separation efficiency of the hydrogen-water separation module based on the first amount of liquid water and the second amount of liquid water; Obtaining gaseous component parameter data output by the gas component testing subsystem and detected for a second mixed medium output by the mixed medium output end of the hydrogen-water separation testing subsystem; and obtaining first sensor data detected by the first sensor module for the first mixed medium and / or the second mixed medium; Test data for the power generation system is generated according to the separation efficiency, the first sensor data, and the gaseous component parameter data.

2. The method according to claim 1, characterized in that The hydrogen-water separation module is further integrated with a first drain valve, which is provided at the water outlet of the water storage unit; the water collection module is provided with a water volume detection unit; the method for determining the first liquid water volume collected by the water collection module and the second liquid water volume collected by the water storage unit includes: After the power generation subsystem is in a target power generation condition for a target period of time, determining the first liquid water volume according to first water volume detection data output by the water volume detection unit; opening the first drain valve and, after all the liquid water stored in the water storage unit enters the water collection module, determining a third liquid water volume according to the second water volume detection data output by the water volume detection unit; The second liquid water amount is determined according to the third liquid water amount and the first liquid water amount.

3. The method according to claim 2, characterized in that The water collection module is provided with a second drain valve; the method further comprises: After generating test data for the power generation system, opening the first drain valve and the second drain valve; A purge gas is input into the hydrogen-water separation test system from the anode side outlet.

4. The method according to claim 1, wherein The method further comprises: The power generation subsystem is controlled according to the test data.

5. A power generation system, characterized in that: The power generation system includes a power generation subsystem, a hydrogen-water separation test subsystem, a gas component test subsystem and a test control subsystem; wherein: The hydrogen-water separation test subsystem includes a hydrogen-water separation module, a water collection module and a first sensing module; the hydrogen-water separation module is integrated with a water storage unit; The input end of the hydrogen-water separation module is connected to the anode side outlet of the power generation subsystem; the hydrogen-water separation module is used to separate the liquid water in the first mixed medium output from the anode side outlet and store it in the water storage unit; the water collection module is connected to the mixed medium output end of the hydrogen-water separation module; The mixed medium output end of the hydrogen-water separation test subsystem is connected to the input end of the gas component test subsystem; the gas component test subsystem is used to test the gaseous components in the second mixed medium output by the hydrogen-water separation test system; The test control subsystem is connected to the hydrogen-water separation test system, the power generation subsystem and the gas component test system; the test control subsystem is used to determine the first liquid water volume collected by the water collection module and the second liquid water volume collected by the water storage unit when the power generation subsystem is in the target power generation condition, and determine the separation efficiency of the hydrogen-water separation module based on the first liquid water volume and the second liquid water volume; obtain the gaseous component parameter data output by the gas component test subsystem and detected for the second mixed medium output from the mixed medium output end of the hydrogen-water separation test subsystem; and obtain the first sensor data detected by the first sensor module for the first mixed medium and / or the second mixed medium; generate test data for the power generation system based on the separation efficiency, the first sensor data, and the gaseous component parameter data.

6. The power generation system according to claim 5, characterized in that: The hydrogen-water separation module is further integrated with a first drain valve, which is arranged at the water outlet of the water storage unit; the water collection module is provided with a water amount detection unit; The test control subsystem is used to determine the first liquid water volume according to the first water volume detection data output by the water volume detection unit after the power generation subsystem has been in the target power generation condition for a target period of time; to open the first drain valve, and after all the liquid water stored in the water storage unit enters the water collection module, to determine the third liquid water volume according to the second water volume detection data output by the water volume detection unit; and to determine the second liquid water volume according to the third liquid water volume and the first liquid water volume.

7. The power generation system according to claim 6, characterized in that: The water collection module is provided with a second drain valve; The test control subsystem is further used to open the first drain valve and the second drain valve after generating test data for the power generation system; and input purge gas from the anode side outlet to the hydrogen-water separation test system.

8. The power generation system according to claim 5, characterized in that: The power generation subsystem comprises: A fuel cell module, including a fuel cell and a fuel cell voltage monitoring device; A water cooling module, used to provide cooling to the fuel cell module; An air supply and exhaust module, used to provide reaction air to the fuel cell module and exhaust the air after the reaction is completed; A hydrogen supply module is used to provide hydrogen to the fuel cell module.

9. The power generation system according to claim 5, characterized in that: The first sensing module includes at least one of an air pressure sensor, a temperature sensor, and a humidity sensor.

10. A testing device for a power generation system, characterized in that: The power generation system includes a power generation subsystem, a hydrogen-water separation test subsystem and a gas composition test subsystem; the hydrogen-water separation test subsystem includes a hydrogen-water separation module, a water collection module and a first sensor module; the hydrogen-water separation module is integrated with a water storage unit; the input end of the hydrogen-water separation module is connected to the anode side outlet of the power generation subsystem; the hydrogen-water separation module is used to separate the liquid water in the first mixed medium output from the anode side outlet and store it in the water storage unit; the water collection module is connected to the mixed medium output end of the hydrogen-water separation module; the mixed medium output end of the hydrogen-water separation test subsystem is connected to the input end of the gas composition test subsystem; the device includes: a first collecting module, configured to determine, when the power generation subsystem is in a target power generation condition, a first amount of liquid water collected by the water collection module and a second amount of liquid water collected by the water storage unit, and determine a separation efficiency of the hydrogen-water separation module based on the first amount of liquid water and the second amount of liquid water; a second collecting module, configured to obtain gaseous component parameter data output by the gas component testing subsystem and detected for a second mixed medium output by the mixed medium output end of the hydrogen-water separation testing subsystem; and to obtain first sensing data detected by the first sensing module for the first mixed medium and / or the second mixed medium; A generating module is used to generate test data for the power generation system according to the separation efficiency, the first sensor data, and the gaseous component parameter data.

11. An electronic device, characterized in that: The invention comprises a processor, a memory and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the method for testing the power generation system according to any one of claims 1 to 9 is implemented.

12. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method for testing a power generation system according to any one of claims 1 to 9 is implemented.

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