Method and system for detecting performance of a hydrogen production plant

Abstract

The application relates to a hydrogen production device performance detection method and relates to the field of electric power system detection.The method comprises the following steps: collecting working data of a to-be-detected hydrogen production device during normal operation, analyzing the working data, obtaining power data, water flow data and electrical property data of the to-be-detected hydrogen production device, determining unit water consumption parameters and unit power consumption parameters of the to-be-detected hydrogen production device based on the power data, the water flow data and the electrical property data, and obtaining hydrogen production efficiency of the to-be-detected hydrogen production device according to the unit power consumption parameters. Through the application, the problem that it is difficult to judge the advantages and disadvantages of a hydrogen production device is solved. Through analysis on working data of the hydrogen production device, unit hydrogen production water consumption, power consumption, energy efficiency and other hydrogen production system performance indexes are obtained, so that the advantages and disadvantages of the to-be-detected hydrogen production device are judged according to the performance indexes.

Description

Technical Field

[0001] This application relates to the field of power system testing, and in particular to methods and systems for testing the performance of hydrogen production devices. Background Technology

[0002] With the introduction of the "dual-carbon" strategic goal, new energy sources such as wind and solar power have developed rapidly, and the amount and proportion of wind and solar power generation have continued to rise. However, due to the lag in grid construction behind the growth in installed capacity of new energy sources, and the difficulty in accurately predicting the random and fluctuating nature of wind and solar power generation, the transmission of wind and solar power across regions or provinces is severely restricted, leading to a year-on-year increase in the amount of wind and solar power curtailed. Driven by both promoting the consumption of wind and solar power and industrial decarbonization, developing green electricity to electrolyze water and produce green hydrogen has become one of the effective measures for building a new energy system and achieving the dual-carbon goal.

[0003] However, the production of green hydrogen through water electrolysis is still in the early stages of industrialization. First, the manufacturing standards for hydrogen production equipment are not yet perfect, and there are many types of hydrogen production equipment on the market. Second, the development of testing capabilities for hydrogen production equipment is lagging behind, and equipment testing is insufficient. Third, the engineering application time of hydrogen production equipment is generally short, and it has not yet undergone long-term engineering practice testing.

[0004] Currently, no effective solution has been proposed to address the difficulty in judging the quality of hydrogen production equipment in related technologies. Summary of the Invention

[0005] This application provides a method, system, electronic device, and storage medium for testing the performance of a hydrogen production device, thereby at least solving the problem in the related art of difficulty in judging the quality of a hydrogen production device.

[0006] In a first aspect, embodiments of this application provide a method for testing the performance of a hydrogen production device, the method comprising:

[0007] Collect operating data of the hydrogen production unit under test during normal operation;

[0008] The working data is analyzed to obtain the power data, water flow data, and electrical data of the hydrogen production device under test;

[0009] Based on the power data, the water flow data, and the electrical data, the unit water consumption parameter and the unit power consumption parameter of the hydrogen production device under test are determined.

[0010] The hydrogen production efficiency of the hydrogen production device under test is obtained based on the unit power consumption parameter.

[0011] In some embodiments, the water flow data includes flow rate data and liquid level data; determining the unit water consumption parameter of the hydrogen production device under test includes:

[0012] Based on the first preset water consumption model, the unit hydrogen production water consumption of the electrolyzer is obtained according to the flow rate data and the liquid level data; and / or

[0013] Based on the second preset water consumption model, the unit water consumption for hydrogen production in the hydrogen production system is obtained according to the flow rate data and the liquid level data.

[0014] In some embodiments, the first preset water consumption model includes:

[0015]

[0016] Among them, SH C The unit hydrogen production water consumption of the electrolyzer; Ysl t+Δt Ysl represents the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt. t-Δt t represents the liquid level data on the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the preset demineralized water flow rate and liquid level function on the oxygen side of the separation system; Ls1 is the flow rate data at the inlet of the gas-liquid separation system, and Ls4 is the flow rate data at the outlet of the hydrogen side of the gas-liquid separation system.

[0017] In some embodiments, the second preset water consumption model includes:

[0018]

[0019] Among them, SH XT Ysl represents the unit hydrogen production water consumption of the hydrogen production system. t+Δt Ysl represents the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt. t-Δt Let f1(.) be the liquid level data on the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) be the preset demineralized water flow rate and liquid level function on the oxygen side of the separation system, and Ls1 be the flow rate data at the inlet of the gas-liquid separation system; Ys2 t+Δt Ys2 represents the liquid level data of the circulating cooling water system tank at time t+Δt. t-Δt Let f2 be the liquid level data of the circulating cooling water system tank at time t-Δt, f2(.) be the preset demineralized water flow rate and liquid level function of the circulating cooling water system, and Ls2 be the flow rate data at the inlet of the circulating cooling water system; Ys3 t+Δt Ys3 represents the water level data of the chiller unit's water tank at time t+Δt. t-Δt t represents the water level data of the chiller unit's water tank at time t-Δt, f3(.) is the preset function of the demineralized water volume and water level of the chiller unit, Ls3 is the flow rate data at the inlet of the chiller unit, and Ls5 is the flow rate data at the outlet of the hydrogen purification system.

[0020] In some embodiments, the water flow data includes flow rate data and liquid level data, and the electrical data includes DC voltage data and DC current data; determining the unit power consumption parameters of the hydrogen production device under test includes:

[0021] Based on the first preset power consumption model, the DC power consumption per unit of hydrogen production in the electrolyzer is obtained according to the flow rate data, the DC voltage data, and the DC current data; and / or

[0022] Based on the second preset power consumption model, and according to the power data and the flow rate data, the unit power consumption of the hydrogen production system is obtained; and / or

[0023] Based on a preset AC power consumption model, the AC power consumption per unit of hydrogen production is obtained according to the power data and the flow rate data; and / or

[0024] Based on the preset total power consumption model, the total power consumption per unit of hydrogen production is obtained according to the DC power consumption per unit of hydrogen production in the electrolyzer and the AC power consumption per unit of hydrogen production.

[0025] In some embodiments, the first preset power consumption model includes:

[0026]

[0027] Among them, DH CZ Vs1 is the DC power consumption per unit hydrogen production of the electrolyzer, Vs4 is the DC input current of the electrolyzer, and Ls4 is the flow rate data of the hydrogen side outlet of the gas-liquid separation system.

[0028] The second preset power consumption model includes:

[0029]

[0030] Among them, DH XT G1 represents the unit hydrogen production power consumption of the hydrogen production system, G2 represents the power data at the inlet of the rectifier transformer, G3 represents the power data at the inlet of the auxiliary transformer, and Ls5 represents the flow rate data at the outlet of the hydrogen purification system.

[0031] In some embodiments, the preset AC power consumption model includes:

[0032]

[0033] Among them, DH CJ G3 represents the AC power consumption per unit of hydrogen production; G4 represents the power data at the outlet of the auxiliary transformer; G5 represents the power data at the inlet of the demineralized water preparation system; G6 represents the power data at the inlet of the chiller unit; Ls1 represents the flow rate data at the inlet of the gas-liquid separation system; Ls2 represents the flow rate data at the inlet of the circulating cooling water system; Ls3 represents the flow rate data at the inlet of the chiller unit; and Ls4 represents the flow rate data at the hydrogen side outlet of the gas-liquid separation system.

[0034] The preset total power consumption model includes:

[0035] DH CD =DH CZ +DH CJ

[0036] Among them, DH CD The total electricity consumption per unit of hydrogen production, DH CZ The DC power consumption per unit hydrogen production of the electrolyzer is DH. CJ The unit of hydrogen production AC power consumption is given.

[0037] In some embodiments, obtaining the hydrogen production efficiency of the hydrogen production device under test based on the unit power consumption parameter includes:

[0038] Based on the total power consumption per unit of hydrogen production, the first hydrogen production efficiency is determined without considering the power conversion efficiency and the power consumption for hydrogen purification.

[0039] Based on the unit hydrogen production power consumption of the hydrogen production system, a second hydrogen production efficiency is determined, taking into account the efficiency of power conversion and the power consumption of hydrogen purification.

[0040] In some embodiments, the method further includes:

[0041] Based on the historical operating data of the hydrogen production device under test, the performance indicators of the hydrogen production device under test under different load conditions are obtained, wherein the performance indicators include unit water consumption parameters, unit power consumption parameters and hydrogen production efficiency.

[0042] Based on the performance indicators under different load conditions, historical variation curves for each performance indicator are generated.

[0043] Secondly, embodiments of this application provide a performance testing system for a hydrogen production device, the system comprising:

[0044] The data acquisition module is used to collect operating data of the hydrogen production unit under test during normal operation.

[0045] The preprocessing module is used to analyze the working data to obtain the power data, water flow data, and electrical data of the hydrogen production device under test;

[0046] The first analysis module is used to determine the unit water consumption parameter and unit power consumption parameter of the hydrogen production device under test based on the power data, the water flow data and the electrical data.

[0047] The second analysis module is used to obtain the hydrogen production efficiency of the hydrogen production device under test based on the unit power consumption parameter.

[0048] Thirdly, embodiments of this application provide a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the hydrogen production device performance testing method as described in the first aspect above.

[0049] Fourthly, embodiments of this application provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the hydrogen production device performance testing method as described in the first aspect above.

[0050] Compared to related technologies, the hydrogen production device performance testing method provided in this application collects operating data of the hydrogen production device under test during normal operation, analyzes the operating data to obtain power data, water flow data, and electrical data of the hydrogen production device under test, determines the unit water consumption parameter and unit power consumption parameter of the hydrogen production device under test based on the power consumption parameter, and obtains the hydrogen production efficiency of the hydrogen production device under test based on the unit power consumption parameter, thus solving the problem of difficulty in judging the quality of hydrogen production devices. By analyzing the operating data of the hydrogen production device, performance indicators of the hydrogen production system such as unit hydrogen production water consumption, power consumption, and energy efficiency are obtained, thereby judging the quality of the hydrogen production device under test based on the performance indicators. Attached Figure Description

[0051] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0052] Figure 1 This is a flowchart of a hydrogen production device performance testing method according to an embodiment of this application;

[0053] Figure 2 This is a schematic diagram of the installation of a detection instrument for a hydrogen production system according to an embodiment of this application;

[0054] Figure 3 This is a structural block diagram of a hydrogen production device performance testing system according to an embodiment of this application;

[0055] Figure 4 This is a schematic diagram of the internal structure of an electronic device according to an embodiment of this application. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0057] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0058] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0059] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or modules (units) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. “Multiple” used in this application refers to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0060] This embodiment provides a method for testing the performance of a hydrogen production device. Figure 1 This is a flowchart of a hydrogen production device performance testing method according to an embodiment of this application, such as... Figure 1 As shown, the process includes the following steps:

[0061] Step S201: Collect operating data of the hydrogen production device under test during normal operation.

[0062] This embodiment relies on a normally operating hydrogen production system and adds real-time monitoring instruments. By collecting the safe and stable operating limits and operating information of the hydrogen production system itself, as well as the real-time information from the added instruments, it automatically calculates and analyzes the real-time unit hydrogen production water consumption, electricity consumption, energy efficiency and other performance indicators of the hydrogen production system, and grasps the historical changes in the performance of the hydrogen production system.

[0063] Optionally, under a certain load Is1 (Is1≤I max The operating parameters and limits of a hydrogen production system operating normally under these conditions include: electrolyzer temperature Tc (T min ≤Tc≤T max Electrolytic cell pressure Pc (P min ≤Pc≤P max ), Hydrogen-oxygen side pressure difference P of the electrolyzer HO (P HO ≤P HOmaxThe hydrogen content (H) in the oxygen on the oxygen side of the gas-liquid separation system. OH (H OH ≤H OHmax The oxygen content (H) in the hydrogen on the hydrogen side of the gas-liquid separation system HO (H HO ≤H HOmax The hydrogen concentration N at the hydrogen side outlet of the gas-liquid separation system HC (N HC ≥N Cmin Hydrogen concentration N at the outlet of the hydrogen purification system H (N H ≥N min ). Among them, I max T min T max P min P max P HOmax H OHmax H HOmax N Cmin N min These represent the maximum or minimum limits for each operating parameter.

[0064] Figure 2 This is a schematic diagram of the installation of a detection instrument for a hydrogen production system according to an embodiment of this application, such as... Figure 2 As shown, the added detection instruments include, but are not limited to, installing an energy meter N1 at the rectifier transformer inlet, an energy meter N2 at the auxiliary transformer inlet, an energy meter N3 at the auxiliary transformer outlet, an energy meter N4 at the demineralized water preparation system inlet, an energy meter N5 at the chiller unit inlet, and an energy meter N6 at the hydrogen purification system inlet; installing a voltmeter and an ammeter at the rectifier outlet; installing a flow meter L1 at the gas-liquid separation system inlet, a flow meter L2 at the circulating cooling water system inlet, and a flow meter L3 at the chiller unit inlet; installing a mass flow meter L4 at the hydrogen side outlet of the gas-liquid separation system, and a mass flow meter L5 at the hydrogen purification system outlet; installing a level gauge W1 on the oxygen side of the gas-liquid separation system, a level gauge W2 in the circulating cooling water system tank, and a level gauge W3 in the chiller unit tank.

[0065] Step S202: Analyze the working data to obtain the power data, water flow data, and electrical data of the hydrogen production device under test.

[0066] The collected working data includes the real-time power G1 to G6 of measuring instruments N1 to N6, the DC input voltage Vs1 of the water electrolysis hydrogen production electrolyzer, the DC input current Is1 of the water electrolysis hydrogen production electrolyzer, the real-time flow rate Ls1 to Ls5 of L1 to L5, the real-time liquid level Ys1 to Ys3 of W1 to W3, as well as the parameter limits and real-time operating parameter values ​​of the hydrogen production system itself.

[0067] Step S203: Based on power data, water flow data, and electrical data, determine the unit water consumption parameters and unit power consumption parameters of the hydrogen production device under test.

[0068] Using power data, water flow data, and electrical data, the unit hydrogen production water consumption (SH) of the electrolyzer during normal operation of the hydrogen production system was calculated. C Hydrogen production system unit hydrogen production water consumption SH XT DC power consumption per unit hydrogen production in an electrolyzer (DH) CZ Unit hydrogen production AC power consumption (DH) CJ Total electricity consumption per unit of hydrogen production (DH) CD Hydrogen production system unit hydrogen production power consumption (DH) XT Real-time performance indicators such as hydrogen production efficiency.

[0069] In some embodiments, the water flow data includes flow rate data and liquid level data; the determination of the unit water consumption parameters of the hydrogen production device under test in step S203 includes:

[0070] Step S2031: Based on the first preset water consumption model, the unit hydrogen production water consumption of the electrolyzer is obtained according to the flow rate data and liquid level data.

[0071] In some embodiments, the first preset water consumption model includes:

[0072]

[0073] Among them, SH C Water consumption per unit of hydrogen produced by the electrolyzer; Ysl t+Δt Ysl represents the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt. t-Δt t represents the liquid level data on the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the preset demineralized water flow rate and liquid level function on the oxygen side of the separation system; Ls1 is the flow rate data at the inlet of the gas-liquid separation system, and Ls4 is the flow rate data at the outlet of the hydrogen side of the gas-liquid separation system.

[0074] The average water consumption within the time interval [t-Δt, t+Δt] is taken as the real-time water consumption at time t, where Δt is in the order of seconds.

[0075] Step S2032: Based on the second preset water consumption model, the unit hydrogen production water consumption of the hydrogen production system is obtained according to the flow rate data and liquid level data.

[0076] In some embodiments, the second preset water consumption model includes:

[0077]

[0078] Among them, SH XT Water consumption per unit of hydrogen production in a hydrogen production system; Yslt+Δt Ysl represents the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt. t-Δt Let f1(.) be the liquid level data on the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) be the preset demineralized water flow rate and liquid level function on the oxygen side of the separation system, and Ls1 be the flow rate data at the inlet of the gas-liquid separation system; Ys2 t+Δt Ys2 represents the liquid level data of the circulating cooling water system tank at time t+Δt. t-Δt Let f2 be the liquid level data of the circulating cooling water system tank at time t-Δt, f2(.) be the preset demineralized water flow rate and liquid level function of the circulating cooling water system, and Ls2 be the flow rate data at the inlet of the circulating cooling water system; Ys3 t+Δt Ys3 represents the water level data of the chiller unit's water tank at time t+Δt. t-Δt t represents the water level data of the chiller unit's water tank at time t-Δt, f3(.) is the preset function of the demineralized water volume and water level of the chiller unit, Ls3 is the flow rate data at the inlet of the chiller unit, and Ls5 is the flow rate data at the outlet of the hydrogen purification system.

[0079] In some embodiments, the water flow data includes flow rate data and liquid level data, and the electrical data includes DC voltage data and DC current data; the determination of the unit power consumption parameters of the hydrogen production device under test in step S203 includes:

[0080] Step S2033: Based on the first preset power consumption model, the DC power consumption per unit of hydrogen production in the electrolyzer is obtained according to the flow rate data, DC voltage data, and DC current data.

[0081] The first preset power consumption model includes:

[0082]

[0083] Among them, DH CZ Vs1 represents the DC power consumption per unit hydrogen production in the electrolyzer, Vs1 represents the DC input current of the electrolyzer, Vs4 represents the DC input voltage of the electrolyzer, and Ls4 represents the flow rate at the hydrogen side outlet of the gas-liquid separation system. Vs1, Vs1, and Ls4 are measured in real-time by their respective instruments.

[0084] Is1 is the real-time DC input current of the electrolytic cell, and Vs1 is the real-time DC input voltage of the electrolytic cell.

[0085] Step S2034: Based on the second preset power consumption model, the unit power consumption of hydrogen production system is obtained according to the power data and flow data.

[0086] The second preset power consumption model includes:

[0087]

[0088] Among them, DH XTThe unit hydrogen production power consumption of the hydrogen production system is given by G1, the power data at the inlet of the rectifier transformer is given by G2, the power data at the inlet of the auxiliary transformer is given by G3, and the flow rate data at the outlet of the hydrogen purification system is given by Ls5.

[0089] It should be noted that DH XT The unit hydrogen production power consumption of the hydrogen production system takes into account the power conversion efficiency and hydrogen purification power consumption. G1, G2 and Ls5 are measured in real time by the corresponding instruments.

[0090] Step S2035: Based on the preset AC power consumption model, the AC power consumption per unit of hydrogen production is obtained according to the power data and flow data.

[0091] The preset AC power consumption model includes:

[0092]

[0093] Among them, DH CJ The values ​​represent the AC power consumption per unit of hydrogen production; G3 represents the power data at the outlet of the auxiliary transformer; G4 represents the power data at the inlet of the demineralized water preparation system; G5 represents the power data at the inlet of the chiller unit; G6 represents the power data at the inlet of the hydrogen purification system; Ls1 represents the flow rate data at the inlet of the gas-liquid separation system; Ls2 represents the flow rate data at the inlet of the circulating cooling water system; Ls3 represents the flow rate data at the inlet of the chiller unit; and Ls4 represents the flow rate data at the hydrogen side outlet of the gas-liquid separation system.

[0094] It should be noted that DH CJ To disregard the efficiency of the auxiliary transformer and the power consumption for hydrogen purification, G3, G4, G5, G6, Ls1, Ls2, Ls3 and Ls4 were measured in real time by their respective instruments.

[0095] Step S2036: Based on the preset total power consumption model, the total power consumption per unit of hydrogen production is obtained according to the DC power consumption and AC power consumption per unit of hydrogen production in the electrolyzer.

[0096] The preset total power consumption model includes:

[0097] DH CD =DH CZ +DH CJ

[0098] Among them, DH CD For the total electricity consumption per unit of hydrogen production, DH CZ The DC power consumption per unit hydrogen production in an electrolyzer, DH CJ The AC power consumption per unit of hydrogen production.

[0099] It should be noted that the total electricity consumption per unit of hydrogen production (DH) CD The power consumption for hydrogen purification is calculated without considering the efficiency of power conversion (main transformer, auxiliary transformer and rectifier).

[0100] Continue to refer to Figure 1 After obtaining the unit water consumption parameters and unit electricity consumption parameters, proceed to step S204.

[0101] Step S204: Obtain the hydrogen production efficiency of the hydrogen production device under test based on the unit power consumption parameter.

[0102] In some embodiments, step S204 includes:

[0103] Step S2041: Based on the total power consumption per unit of hydrogen production, determine the first hydrogen production efficiency without considering the power conversion efficiency and the power consumption for hydrogen purification.

[0104] First hydrogen production efficiency η C The calculation formula is as follows:

[0105]

[0106] Where, η C To determine the hydrogen production efficiency without considering power conversion efficiency and hydrogen purification power consumption, 1.48 is the thermal neutral voltage, and 2390 is the production efficiency of 1 Nm³. 3 The theoretical amount of electricity required to produce hydrogen, with 1000 as the conversion factor; DH CD The total electricity consumption per unit of hydrogen production.

[0107] Step S2042: Based on the unit hydrogen production power consumption of the hydrogen production system, determine the second hydrogen production efficiency that takes into account the efficiency of power conversion and the power consumption of hydrogen purification.

[0108] Second hydrogen production efficiency η XT The calculation formula is as follows:

[0109]

[0110] Where, η XT The efficiency of hydrogen production is considered in terms of power conversion efficiency and hydrogen purification power consumption.

[0111] Through the above steps, operating data of the hydrogen production device under test during normal operation is collected. This data is then analyzed to obtain power, water flow, and electrical data. Based on these data, the unit water consumption and unit electricity consumption parameters of the hydrogen production device are determined. The hydrogen production efficiency is then calculated based on the unit electricity consumption parameter, thus solving the problem of difficulty in judging the quality of hydrogen production devices. By analyzing the operating data of the hydrogen production device, performance indicators such as unit water consumption, electricity consumption, and energy efficiency are obtained, allowing for the assessment of the quality of the hydrogen production device under test.

[0112] In some embodiments, the method further includes:

[0113] Step S205: Based on the historical operating data of the hydrogen production device under test, obtain the performance indicators of the hydrogen production device under test under different load conditions. The performance indicators include unit water consumption parameters, unit power consumption parameters, and hydrogen production efficiency.

[0114] Step S206: Generate historical change curves for each performance index based on the performance index under different load conditions.

[0115] Based on the load (Is1≤Imax) operating conditions, the historical changes of performance indicators under each operating condition (including Is1, Tc, Pc) are statistically analyzed, and the historical change curves of performance indicators are plotted.

[0116] It displays the real-time performance index values ​​under the current operating conditions (including Is1, Tc, and Pc), as well as the historical change curves of each performance index under each operating condition, to help staff judge the quality of hydrogen production equipment.

[0117] It should be noted that the steps shown in the above process or in the flowchart of the accompanying figures can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases the steps shown or described may be executed in a different order than that shown here.

[0118] This embodiment also provides a performance testing system for a hydrogen production device. This system is used to implement the above embodiments and preferred embodiments, and details already described will not be repeated. As used below, the terms "module," "unit," "subunit," etc., can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0119] Figure 3 This is a structural block diagram of a hydrogen production device performance testing system according to an embodiment of this application, such as... Figure 3 As shown, the system includes:

[0120] The data acquisition module 31 is used to collect the operating data of the hydrogen production device under test during normal operation.

[0121] The data acquisition module includes a first data acquisition module and a second data acquisition module. The first data acquisition module acquires information including the real-time power G1 to G6 of measuring instruments N1 to N6, the real-time DC voltage Vs1 of V1, the real-time DC current Is1 of I1, the real-time flow rate Ls1 to Ls5 of L1 to L5, and the real-time liquid level Ys1 to Ys3 of W1 to W3. The second data acquisition module acquires information including the parameter limits and real-time operating parameter values ​​of the hydrogen production system itself.

[0122] The preprocessing module 32 is used to analyze the working data to obtain the power data, water flow data and electrical data of the hydrogen production device under test.

[0123] The first analysis module 33 is used to determine the unit water consumption parameters and unit power consumption parameters of the hydrogen production device under test based on power data, water flow data, and electrical data.

[0124] The second analysis module 34 is used to obtain the hydrogen production efficiency of the hydrogen production device under test based on the unit power consumption parameter.

[0125] In some embodiments, the water flow data includes flow rate data and liquid level data; the first analysis module 33 includes: a first water consumption module and a second water consumption module.

[0126] The first water consumption module is used to obtain the unit hydrogen production water consumption of the electrolyzer based on the first preset water consumption model, according to the flow rate data and liquid level data; and / or

[0127] The second water consumption module is used to obtain the unit hydrogen production water consumption of the hydrogen production system based on the second preset water consumption model, according to the flow rate data and liquid level data.

[0128] In some embodiments, the first preset water consumption model includes:

[0129]

[0130] Among them, SH C Water consumption per unit of hydrogen produced by the electrolyzer; Ysl t+Δt Ysl represents the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt. t-Δt t represents the liquid level data on the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the preset demineralized water flow rate and liquid level function on the oxygen side of the separation system; Ls1 is the flow rate data at the inlet of the gas-liquid separation system, and Ls4 is the flow rate data at the outlet of the hydrogen side of the gas-liquid separation system.

[0131] In some embodiments, the second preset water consumption model includes:

[0132]

[0133] Among them, SH XT Water consumption per unit of hydrogen production in a hydrogen production system; Ysl t+Δt Ysl represents the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt. t-Δt Let f1(.) be the liquid level data on the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) be the preset demineralized water flow rate and liquid level function on the oxygen side of the separation system, and Ls1 be the flow rate data at the inlet of the gas-liquid separation system; Ys2 t+Δt Ys2 represents the liquid level data of the circulating cooling water system tank at time t+Δt. t-ΔtLet f2 be the liquid level data of the circulating cooling water system tank at time t-Δt, f2(.) be the preset demineralized water flow rate and liquid level function of the circulating cooling water system, and Ls2 be the flow rate data at the inlet of the circulating cooling water system; Ys3 t+Δt Ys3 represents the water level data of the chiller unit's water tank at time t+Δt. t-Δt t represents the water level data of the chiller unit's water tank at time t-Δt, f3(.) is the preset function of the demineralized water volume and water level of the chiller unit, Ls3 is the flow rate data at the inlet of the chiller unit, and Ls5 is the flow rate data at the outlet of the hydrogen purification system.

[0134] In some embodiments, the water flow data includes flow rate data and liquid level data, and the electrical data includes DC voltage data and DC current data; the first analysis module 33 includes: a first power consumption module, a second power consumption module, an AC power consumption module, and a total power consumption module.

[0135] The first power consumption module is used to obtain the DC power consumption per unit of hydrogen production in the electrolyzer based on a first preset power consumption model, according to flow rate data, DC voltage data, and DC current data; and / or

[0136] The second power consumption module is used to obtain the unit power consumption of the hydrogen production system based on the second preset power consumption model, according to power data and flow data; and / or

[0137] The AC power consumption module is used to obtain the AC power consumption per unit of hydrogen production based on a preset AC power consumption model, according to power data and flow data; and / or

[0138] The total power consumption module is used to obtain the total power consumption per unit of hydrogen production based on a preset total power consumption model, according to the DC power consumption and AC power consumption per unit of hydrogen production in the electrolyzer.

[0139] In some embodiments, the first preset power consumption model includes:

[0140]

[0141] Among them, DH CZ Vs1 represents the DC power consumption per unit hydrogen production in the electrolyzer, Vs1 represents the DC input current of the electrolyzer, Vs4 represents the DC input voltage of the electrolyzer, and Ls4 represents the flow rate data of the hydrogen side outlet of the gas-liquid separation system.

[0142] The second preset power consumption model includes:

[0143]

[0144] Among them, DH XT The unit hydrogen production power consumption of the hydrogen production system is given by G1, the power data at the inlet of the rectifier transformer is given by G2, the power data at the inlet of the auxiliary transformer is given by G3, and the flow rate data at the outlet of the hydrogen purification system is given by Ls5.

[0145] In some embodiments, the preset AC power consumption model includes:

[0146]

[0147] Among them, DH CJ The outputs are: G3 (power consumption per unit of hydrogen production), G4 (power consumption at the outlet of the auxiliary transformer), G5 (power consumption at the inlet of the demineralized water preparation system), G6 (power consumption at the inlet of the chiller unit), Ls1 (flow rate at the inlet of the gas-liquid separation system), Ls2 (flow rate at the inlet of the circulating cooling water system), Ls3 (flow rate at the inlet of the chiller unit), and Ls4 (flow rate at the hydrogen-side outlet of the gas-liquid separation system).

[0148] The preset total power consumption model includes:

[0149] DH CD =DH CZ +DH CJ

[0150] Among them, DH CD For the total electricity consumption per unit of hydrogen production, DH CZ The DC power consumption per unit hydrogen production in an electrolyzer, DH CJ The AC power consumption per unit of hydrogen production.

[0151] In some embodiments, the second analysis module 34 includes: a first hydrogen production efficiency module and a second hydrogen production efficiency module.

[0152] The first hydrogen production efficiency module is used to determine the first hydrogen production efficiency based on the total power consumption per unit of hydrogen production, without considering the power conversion efficiency and the power consumption for hydrogen purification.

[0153] The second hydrogen production efficiency module is used to determine the second hydrogen production efficiency, taking into account the efficiency of power conversion and the power consumption of hydrogen purification, based on the unit hydrogen production power consumption of the hydrogen production system.

[0154] In some embodiments, the system further includes a historical analysis module and a curve plotting module.

[0155] The historical analysis module is used to obtain the performance indicators of the hydrogen production device under test under different load conditions based on the historical operating data of the device. The performance indicators include unit water consumption parameters, unit power consumption parameters, and hydrogen production efficiency.

[0156] The curve plotting module is used to generate historical change curves for various performance indicators based on performance indicators under different load conditions.

[0157] Through the aforementioned system, the acquisition module 31 collects operating data of the hydrogen production device under test during normal operation. The preprocessing module 32 analyzes the operating data to obtain the power data, water flow data, and electrical data of the hydrogen production device under test. Based on the power data, water flow data, and electrical data, the first analysis module 33 determines the unit water consumption parameter and unit power consumption parameter of the hydrogen production device under test. The second analysis module 34 obtains the hydrogen production efficiency of the hydrogen production device under test based on the unit power consumption parameter, thus solving the problem of difficulty in judging the quality of hydrogen production devices. By analyzing the operating data of the hydrogen production device, performance indicators of the hydrogen production system, such as unit hydrogen production water consumption, power consumption, and energy efficiency, are obtained, thereby judging the quality of the hydrogen production device under test based on the performance indicators.

[0158] It should be noted that the above modules can be functional modules or program modules, and can be implemented through software or hardware. For modules implemented through hardware, the above modules can reside in the same processor; or the above modules can be located in different processors in any combination.

[0159] This embodiment also provides an electronic device, including a memory and a processor, wherein the memory stores a computer program and the processor is configured to run the computer program to perform the steps in any of the above method embodiments.

[0160] Optionally, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor and the input / output device is connected to the processor.

[0161] Optionally, in this embodiment, the processor can be configured to perform the following steps via a computer program:

[0162] S1 collects operating data of the hydrogen production unit under test during normal operation.

[0163] S2 analyzes the working data to obtain the power data, water flow data, and electrical data of the hydrogen production device under test.

[0164] S3. Based on power data, water flow data, and electrical data, determine the unit water consumption parameters and unit power consumption parameters of the hydrogen production device under test.

[0165] S4. Based on the unit power consumption parameter, the hydrogen production efficiency of the hydrogen production device under test is obtained.

[0166] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementations, and will not be repeated here.

[0167] In one embodiment, Figure 4 This is a schematic diagram of the internal structure of an electronic device according to an embodiment of this application, such as... Figure 4 As shown, an electronic device is provided, which can be a server, and its internal structure diagram can be as follows. Figure 4 As shown, the electronic device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computing and control capabilities. The memory includes a non-volatile storage medium and internal memory. The non-volatile storage medium stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage medium. The database stores data. The network interface communicates with external terminals via a network connection. When the computer program is executed by the processor, it implements a method for testing the performance of a hydrogen production device.

[0168] Those skilled in the art will understand that Figure 4 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the electronic device to which the present application is applied. The specific electronic device may include more or fewer components than shown in the figure, or combine certain components, or have different component arrangements.

[0169] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. This computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0170] Those skilled in the art should understand that the technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments have been described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0171] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A method for testing the performance of a hydrogen production device, characterized in that, The method includes: Collect operating data of the hydrogen production unit under test during normal operation; The working data is analyzed to obtain the power data, water flow data, and electrical data of the hydrogen production device under test; Based on the power data, the water flow data, and the electrical data, the unit water consumption parameter and the unit power consumption parameter of the hydrogen production device under test are determined. The hydrogen production efficiency of the hydrogen production device under test is obtained based on the unit power consumption parameters. The water flow data includes flow rate data and liquid level data; the electrical data includes DC voltage data and DC current data; determining the unit power consumption parameters of the hydrogen production device under test includes: Based on the first preset power consumption model, the DC power consumption per unit of hydrogen production in the electrolyzer is obtained according to the flow rate data, the DC voltage data, and the DC current data; and / or Based on the second preset power consumption model, and according to the power data and the flow rate data, the unit power consumption of the hydrogen production system is obtained; and / or Based on a preset AC power consumption model, the AC power consumption per unit of hydrogen production is obtained according to the power data and the flow rate data; and / or Based on the preset total power consumption model, the total power consumption per unit of hydrogen production is obtained according to the DC power consumption per unit of hydrogen production in the electrolyzer and the AC power consumption per unit of hydrogen production. The preset AC power consumption model includes: Among them, DH CJ G3 represents the AC power consumption per unit of hydrogen production; G4 represents the power data at the outlet of the auxiliary transformer; G5 represents the power data at the inlet of the demineralized water preparation system; G6 represents the power data at the inlet of the chiller unit; Ls1 represents the flow rate data at the inlet of the gas-liquid separation system; Ls2 represents the flow rate data at the inlet of the circulating cooling water system; Ls3 represents the flow rate data at the inlet of the chiller unit; and Ls4 represents the flow rate data at the hydrogen side outlet of the gas-liquid separation system. The preset total power consumption model includes: DH CD =DH CZ +DH CJ Among them, DH CD The total electricity consumption per unit of hydrogen production, DH CZ The DC power consumption per unit hydrogen production of the electrolyzer is DH. CJ The unit of hydrogen production AC power consumption is given.

2. The method according to claim 1, characterized in that, The water flow data includes flow rate data and liquid level data; determining the unit water consumption parameter of the hydrogen production device under test includes: Based on the first preset water consumption model, the unit hydrogen production water consumption of the electrolyzer is obtained according to the flow rate data and the liquid level data; and / or Based on the second preset water consumption model, the unit water consumption for hydrogen production in the hydrogen production system is obtained according to the flow rate data and the liquid level data.

3. The method according to claim 2, characterized in that, The first preset water consumption model includes: Among them, SH C The unit hydrogen production water consumption of the electrolyzer; Ysl t+Δt Ysl represents the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt. t-Δt t represents the liquid level data on the oxygen side of the gas-liquid separation system at time t-Δt, f1(). is the preset demineralized water flow rate and liquid level function on the oxygen side of the separation system; Ls1 represents the flow rate data at the inlet of the gas-liquid separation system, and Ls4 represents the flow rate data at the outlet of the hydrogen side of the gas-liquid separation system.

4. The method according to claim 2, characterized in that, The second preset water consumption model includes: Among them, SH XT Ysl represents the unit hydrogen production water consumption of the hydrogen production system. t+Δt Ysl represents the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt. t-Δt Let f1 be the liquid level data on the oxygen side of the gas-liquid separation system at time t-Δt, f1(). be the preset demineralized water flow rate and liquid level function on the oxygen side of the separation system, and Ls1 be the flow rate data at the inlet of the gas-liquid separation system; Ys2 t+Δt Ys2 represents the liquid level data of the circulating cooling water system tank at time t+Δt. t-Δt Let f2 be the liquid level data of the circulating cooling water system tank at time t-Δt, f2(). be the preset demineralized water flow rate and liquid level function of the circulating cooling water system, and Ls2 be the flow rate data at the inlet of the circulating cooling water system; Ys3 t+Δt Ys3 represents the water level data of the chiller unit's water tank at time t+Δt. t-Δt t represents the water level data of the chiller unit's water tank at time t-Δt, f3(). represents the preset demineralized water volume and water level function of the chiller unit, Ls3 represents the flow rate data at the inlet of the chiller unit, and Ls5 represents the flow rate data at the outlet of the hydrogen purification system.

5. The method according to claim 1, characterized in that, The first preset power consumption model includes: Among them, DH CZ Vs1 is the DC power consumption per unit hydrogen production of the electrolyzer, Vs4 is the DC input current of the electrolyzer, and Ls4 is the flow rate data of the hydrogen side outlet of the gas-liquid separation system. The second preset power consumption model includes: Among them, DH XT G1 represents the unit hydrogen production power consumption of the hydrogen production system, G2 represents the power data at the inlet of the rectifier transformer, G3 represents the power data at the inlet of the auxiliary transformer, and Ls5 represents the flow rate data at the outlet of the hydrogen purification system.

6. The method according to claim 1, characterized in that, The step of obtaining the hydrogen production efficiency of the hydrogen production device under test based on the unit power consumption parameter includes: Based on the total power consumption per unit of hydrogen production, the first hydrogen production efficiency is determined without considering the power conversion efficiency and the power consumption for hydrogen purification. Based on the unit hydrogen production power consumption of the hydrogen production system, a second hydrogen production efficiency is determined, taking into account the efficiency of power conversion and the power consumption of hydrogen purification.

7. The method according to claim 1, characterized in that, The method further includes: Based on the historical operating data of the hydrogen production device under test, the performance indicators of the hydrogen production device under test under different load conditions are obtained, wherein the performance indicators include unit water consumption parameters, unit power consumption parameters and hydrogen production efficiency. Based on the performance indicators under different load conditions, historical variation curves for each performance indicator are generated.

8. A performance testing system for a hydrogen production device, characterized in that, The system includes: The data acquisition module is used to collect operating data of the hydrogen production unit under test during normal operation. The preprocessing module is used to analyze the working data to obtain the power data, water flow data, and electrical data of the hydrogen production device under test; The first analysis module is used to determine the unit water consumption parameter and unit power consumption parameter of the hydrogen production device under test based on the power data, the water flow data and the electrical data. The water flow data includes flow rate data and liquid level data; the electrical data includes DC voltage data and DC current data; determining the unit power consumption parameters of the hydrogen production device under test includes: Based on the first preset power consumption model, the DC power consumption per unit of hydrogen production in the electrolyzer is obtained according to the flow rate data, the DC voltage data, and the DC current data; and / or Based on the second preset power consumption model, and according to the power data and the flow rate data, the unit power consumption of the hydrogen production system is obtained; and / or Based on a preset AC power consumption model, the AC power consumption per unit of hydrogen production is obtained according to the power data and the flow rate data; and / or Based on the preset total power consumption model, the total power consumption per unit of hydrogen production is obtained according to the DC power consumption per unit of hydrogen production in the electrolyzer and the AC power consumption per unit of hydrogen production. The preset AC power consumption model includes: Among them, DH CJ G3 represents the AC power consumption per unit of hydrogen production; G4 represents the power data at the outlet of the auxiliary transformer; G5 represents the power data at the inlet of the demineralized water preparation system; G6 represents the power data at the inlet of the chiller unit; Ls1 represents the flow rate data at the inlet of the gas-liquid separation system; Ls2 represents the flow rate data at the inlet of the circulating cooling water system; Ls3 represents the flow rate data at the inlet of the chiller unit; and Ls4 represents the flow rate data at the hydrogen side outlet of the gas-liquid separation system. The preset total power consumption model includes: DH CD =DH CZ +DH CJ Among them, DH CD The total electricity consumption per unit of hydrogen production, DH CZ The DC power consumption per unit hydrogen production of the electrolyzer is DH. CJ The unit AC power consumption for hydrogen production; The second analysis module is used to obtain the hydrogen production efficiency of the hydrogen production device under test based on the unit power consumption parameter.

Images