Hydrogen production device performance detection method and system

Abstract

The invention relates to a hydrogen production device performance detection method, and relates to the field of electric power system detection, and the method comprises the steps: collecting the working data of a to-be-detected hydrogen production device during normal operation, analyzing the working data, obtaining the power data, water flow data and electrical data of the to-be-detected hydrogen production device, and calculating the performance of the to-be-detected hydrogen production device based on the power data, the water flow data and the electrical data. And determining a unit water consumption parameter and a unit power consumption parameter of the to-be-tested hydrogen production device, and obtaining the hydrogen production efficiency of the to-be-tested hydrogen production device according to the unit power consumption parameter. The problem that the quality of the hydrogen production device is difficult to judge is solved. By analyzing the working data of the hydrogen production device, hydrogen production system performance indexes such as unit hydrogen production water consumption, power consumption, energy efficiency and the like are obtained, so that the advantages and disadvantages of the hydrogen production device to be tested are judged according to the performance indexes.

Description

Technical Field

[0001] The present application relates to the field of power system detection, and in particular to a method and system for detecting the performance of a hydrogen production device. Background Art

[0002] With the proposal of the "dual carbon" strategic goal, new energy sources such as wind power and photovoltaic power have developed rapidly, and the amount of wind and solar power generation and its proportion have continued to increase. As the construction of the power grid lags behind the growth of new energy installed capacity, and the power generation of new energy sources such as wind and solar power is difficult to accurately predict and has the characteristics of randomness and volatility, the transmission of wind and solar power across regions or provinces is severely restricted, and the amount of wind and solar power abandoned has increased year by year. Driven by the dual promotion of wind and solar power consumption and industrial decarbonization, the development of green electricity electrolysis water to produce green hydrogen has become one of the effective measures to build a new energy system and achieve the dual carbon goals.

[0003] However, the production of green hydrogen by electrolyzing water with green electricity is 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 hydrogen production equipment detection capabilities lags 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 tests.

[0004] Currently, no effective solution has been proposed for the problem that it is difficult to judge the quality of hydrogen production equipment in related technologies. Summary of the invention

[0005] The embodiments of the present application provide a method, system, electronic device and storage medium for detecting the performance of a hydrogen production device, so as to at least solve the problem in the related art that it is difficult to judge the quality of a hydrogen production device.

[0006] In a first aspect, an embodiment of the present application provides a method for detecting performance of a hydrogen production device, the method comprising:

[0007] Collect working data of the hydrogen production device to be tested during normal operation;

[0008] Analyzing the working data to obtain power data, water flow data and electrical property data of the hydrogen production device to be tested;

[0009] Determine a unit water consumption parameter and a unit electricity consumption parameter of the hydrogen production device to be tested based on the power data, the water flow data and the electrical property data;

[0010] The hydrogen production efficiency of the hydrogen production device to be tested is obtained according to the unit power consumption parameter.

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

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

[0013] 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 data and the liquid level data.

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

[0015]

[0016] Among them, SH C Ysl is the water consumption per unit hydrogen production of the electrolyzer; t+Δt is the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt, Ysl t-Δt is the liquid level data of the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the desalted water volume and liquid level function of the preset separation system oxygen side; Ls1 is the flow data of the inlet of the gas-liquid separation system, and Ls4 is the flow data of 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 is the unit water consumption of hydrogen production of the hydrogen production system; t+Δt is the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt, Ysl t-Δt is the liquid level data of the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the desalted water volume and liquid level function of the preset separation system oxygen side, Ls1 is the flow data of the gas-liquid separation system inlet; Ys2 t+Δt Ys2 is the liquid level data of the circulating cooling water system tank at time t+Δt, t-Δt is the liquid level data of the circulating cooling water system water tank at time t-Δt, f2(.) is the desalted water volume and liquid level function of the preset circulating water cooling system, Ls2 is the flow data of the circulating cooling water system inlet; Ys3 t+Δt is the liquid level data of the chiller tank at time t+Δt, Ys3 t-Δt is the liquid level data of the water tank of the chiller at time t-Δt, f3(.) is the desalted water volume and liquid level function of the preset chiller, Ls3 is the flow data at the inlet of the chiller; Ls5 is the flow data at the outlet of the hydrogen purification system.

[0020] In some embodiments, the water flow data includes flow data and liquid level data, the electrical data includes DC voltage data and DC current data; and determining the unit power consumption parameter of the hydrogen production device to be tested includes:

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

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

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

[0024] Based on a preset total power consumption model, the unit total power consumption for hydrogen production is obtained according to the unit direct current power consumption for hydrogen production of the electrolyzer and the unit alternating current power consumption for hydrogen production.

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

[0026]

[0027] Among them, DH CZ is the DC power consumption per unit hydrogen production of the electrolyzer, Is1 is the DC input current of the electrolyzer, Vs1 is the DC input voltage of the electrolyzer, and Ls4 is the flow 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 is the unit hydrogen production power consumption of the hydrogen production system, G1 is the power data at the inlet of the rectifier transformer, G1 is the power data at the inlet of the public-auxiliary transformer, and Ls5 is the flow 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 is the AC power consumption of the unit hydrogen production; G3 is the power data of the public auxiliary transformer outlet, G4 is the power data of the desalted water preparation system inlet, G5 is the power data of the chiller inlet, and G6 is the power data of the hydrogen purification system inlet; Ls1 is the flow data of the gas-liquid separation system inlet, Ls2 is the flow data of the circulating cooling water system inlet, Ls3 is the flow data of the chiller inlet, and Ls4 is the flow data of 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 is the total power consumption for hydrogen production per unit, DH CZ is the DC power consumption per unit hydrogen production of the electrolyzer, DH CJ is the AC power consumption for unit hydrogen production.

[0037] In some embodiments, obtaining the hydrogen production efficiency of the hydrogen production device to be tested according to the unit power consumption parameter includes:

[0038] Based on the unit total power consumption for hydrogen production, determining a first hydrogen production efficiency without considering power conversion efficiency and hydrogen purification power consumption;

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

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

[0041] Based on the historical working data of the hydrogen production device to be tested, the performance indicators of the hydrogen production device to be tested under different load conditions are obtained, wherein the performance indicators include unit water consumption parameters, unit power consumption parameters and hydrogen production efficiency;

[0042] According to the performance indicators under different load conditions, a historical change curve of each performance indicator is generated.

[0043] In a second aspect, an embodiment of the present application provides a hydrogen production device performance detection system, the system comprising:

[0044] A collection module, used to collect working data of the hydrogen production device to be tested during normal operation;

[0045] A preprocessing module, used for analyzing the working data to obtain power data, water flow data and electrical property data of the hydrogen production device to be tested;

[0046] A first analysis module is used to determine a unit water consumption parameter and a unit electricity consumption parameter of the hydrogen production device to be tested based on the power data, the water flow data and the electrical property data;

[0047] The second analysis module is used to obtain the hydrogen production efficiency of the hydrogen production device to be tested according to the unit power consumption parameter.

[0048] In a third aspect, an embodiment of the present application provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the method for detecting the performance of a hydrogen production device as described in the first aspect above is implemented.

[0049] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the method for detecting the performance of a hydrogen production device as described in the first aspect above.

[0050] Compared with the related art, the hydrogen production device performance detection method provided in the embodiment of the present application collects the working data of the hydrogen production device to be tested during normal operation, analyzes the working data, obtains the power data, water flow data and electrical data of the hydrogen production device to be tested, and determines the unit water consumption parameters and unit power consumption parameters of the hydrogen production device to be tested based on the power data, water flow data and electrical data. According to the unit power consumption parameters, the hydrogen production efficiency of the hydrogen production device to be tested is obtained, which solves the problem of difficulty in judging the quality of the hydrogen production device. By analyzing the working data of the hydrogen production device, the performance indicators of the hydrogen production system such as unit water consumption, power consumption, and energy efficiency of hydrogen production are obtained, so as to judge the quality of the hydrogen production device to be tested according to the performance indicators. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0052] Figure 1 is a flow chart of a method for detecting performance of a hydrogen production device according to an embodiment of the present application;

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

[0054] Figure 3 is a structural block diagram of a hydrogen production device performance detection system according to an embodiment of the present application;

[0055] Figure 4 It is a schematic diagram of the internal structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0056] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. Based on the embodiments provided in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0057] Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. In addition, it can also be understood that although the efforts made in this development process may be complicated and lengthy, for ordinary technicians in this field related to the content disclosed in this application, some changes in design, manufacturing or production based on the technical content disclosed in this application are just conventional technical means, and should not be understood as insufficient content disclosed in this application.

[0058] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those of ordinary skill in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0059] Unless otherwise defined, the technical terms or scientific terms involved in this application should be understood by people with ordinary skills in the technical field to which this application belongs. The words "one", "a", "a", "the" and the like involved in this application do not indicate a quantitative limitation, and may represent the singular or plural. The terms "include", "comprise", "have" and any of their variations involved in this application are intended to cover non-exclusive inclusions; 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 that are not listed, or may also include other steps or units inherent to these processes, methods, products or devices. The words "connect", "connected", "coupled" and the like involved in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "multiple" involved in this application refers to two or more. "And / or" describes the association relationship of associated objects, indicating that there may be three relationships, for example, "A and / or B" can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects before and after are in an "or" relationship. The terms "first", "second", "third", etc. involved in this application are only used to distinguish similar objects and do not represent a specific ordering of the objects.

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

[0061] Step S201, collecting working data of the hydrogen production device to be tested when it operates normally.

[0062] This embodiment relies on a normally operating hydrogen production system and is equipped with real-time detection 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 of the installed instruments, it automatically calculates and analyzes the real-time unit hydrogen production water consumption, electricity consumption, energy efficiency and other hydrogen production system performance indicators, and grasps the historical changes in the hydrogen production system performance.

[0063] Optionally, at a certain load Is1 (Is1≤I max ) under normal operation, the operating parameters and their limits of the hydrogen production system itself include: electrolyzer temperature Tc (T min ≤Tc≤T max ), electrolytic cell pressure Pc(P min ≤Pc≤P max ), pressure difference P on hydrogen and oxygen sides of electrolyzer HO (P HO ≤P HOmax), hydrogen content H in oxygen on the oxygen side of the gas-liquid separation system OH (H OH ≤H OHmax ), oxygen content H in hydrogen on the hydrogen side of the gas-liquid separation system HO (H HO ≤H HOmax ), hydrogen concentration N at the hydrogen side outlet of the gas-liquid separation system HC (N HC ≥N Cmin ), hydrogen concentration at the outlet of hydrogen purification system N 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 Respectively represent the maximum or minimum limit of each operating parameter.

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

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

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

[0067] Step S203, based on the power data, the water flow data and the electrical property data, determine the unit water consumption parameter and the unit electricity consumption parameter of the hydrogen production device to be tested.

[0068] The unit hydrogen production water consumption SH of the electrolyzer during normal operation of the hydrogen production system is calculated through power data, water flow data and electrical data. C , Hydrogen production system unit water consumption SH XT , the unit DC power consumption of electrolyzer for hydrogen production is DH CZ , AC power consumption per unit of hydrogen production DH CJ , total power consumption per unit of hydrogen production DH CD And the unit power consumption of hydrogen production system DH XT , hydrogen production efficiency and other real-time performance indicators.

[0069] In some embodiments, the water flow data includes flow data and liquid level data; the unit water consumption parameter of the hydrogen production device to be tested determined in step S203 includes:

[0070] Step S2031, based on the first preset water consumption model, obtain the unit hydrogen production water consumption of the electrolyzer according to the flow data and the liquid level data.

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

[0072]

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

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

[0075] Step S2032, based on the second preset water consumption model, according to the flow data and the liquid level data, obtain the unit hydrogen production water consumption of the hydrogen production system.

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

[0077]

[0078] Among them, SH XT Ysl is the unit water consumption of hydrogen production system;t+Δt is the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt, Ysl t-Δt is the liquid level data of the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the desalted water volume and liquid level function of the preset separation system oxygen side, Ls1 is the flow data of the gas-liquid separation system inlet; Ys2 t+Δt Ys2 is the liquid level data of the circulating cooling water system tank at time t+Δt, t-Δt is the liquid level data of the circulating cooling water system water tank at time t-Δt, f2(.) is the desalted water volume and liquid level function of the preset circulating water cooling system, Ls2 is the flow data of the circulating cooling water system inlet; Ys3 t+Δt is the liquid level data of the chiller tank at time t+Δt, Ys3 t-Δt is the liquid level data of the water tank of the chiller at time t-Δt, f3(.) is the desalted water volume and liquid level function of the preset chiller, Ls3 is the flow data at the inlet of the chiller; Ls5 is the flow data at the outlet of the hydrogen purification system.

[0079] In some embodiments, the water flow data includes flow data and liquid level data, and the electrical data includes DC voltage data and DC current data; the unit power consumption parameter of the hydrogen production device to be tested determined in step S203 includes:

[0080] Step S2033, based on the first preset power consumption model, according to the flow data, DC voltage data and DC current data, obtain the unit hydrogen production DC power consumption of the electrolyzer.

[0081] The first preset power consumption model includes:

[0082]

[0083] Among them, DH CZ Is1 is the DC power consumption of the electrolyzer per unit of hydrogen production, Is1 is the DC input current of the electrolyzer, Vs1 is the DC input voltage of the electrolyzer, and Ls4 is the flow data of the hydrogen side outlet of the gas-liquid separation system. Is1, Vs1 and Ls4 are measured in real time by the corresponding instruments.

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

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

[0086] The second preset power consumption model includes:

[0087]

[0088] Among them, DH XTis the unit hydrogen production power consumption of the hydrogen production system, G1 is the power data at the inlet of the rectifier transformer, G1 is the power data at the inlet of the public-auxiliary transformer, and Ls5 is the flow data at the outlet of the hydrogen purification system.

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

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

[0091] Preset AC power consumption models include:

[0092]

[0093] Among them, DH CJ is the unit AC power consumption for hydrogen production; G3 is the power data at the outlet of the public auxiliary transformer, G4 is the power data at the inlet of the desalted water preparation system, G5 is the power data at the inlet of the chiller, and G6 is the power data at the inlet of the hydrogen purification system; Ls1 is the flow data at the inlet of the gas-liquid separation system, Ls2 is the flow data at the inlet of the circulating cooling water system, Ls3 is the flow data at the inlet of the chiller, and Ls4 is the flow data at the outlet of the hydrogen side of the gas-liquid separation system.

[0094] It should be noted that DH CJ In order to ignore the efficiency of the public and auxiliary transformers and the power consumption of hydrogen purification, G3, G4, G5, G6, Ls1, Ls2, Ls3 and Ls4 are measured in real time by the corresponding instruments.

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

[0096] The preset total power consumption models include:

[0097] DH CD =DH CZ +DH CJ

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

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

[0100] Continue to refer to Figure 1 After obtaining the unit water consumption parameter and the unit power consumption parameter, execute step S204.

[0101] Step S204, obtaining the hydrogen production efficiency of the hydrogen production device to be tested according to 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 a first hydrogen production efficiency that does not consider the power conversion efficiency and the power consumption of hydrogen purification.

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

[0105]

[0106] Among them, η C is the hydrogen production efficiency without considering the power conversion efficiency and hydrogen purification power consumption, 1.48 is the thermal neutral voltage, and 2390 is the voltage required to produce 1Nm 3 The theoretical amount of electricity required for hydrogen, 1000 is the conversion factor; DH CD is 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 a second hydrogen production efficiency that takes into account the efficiency of power conversion and the power consumption of hydrogen purification.

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

[0109]

[0110] Among them, η XT The hydrogen production efficiency is calculated by taking into account the efficiency of power conversion and the power consumption of hydrogen purification.

[0111] Through the above steps, the working data of the hydrogen production device to be tested during normal operation is collected, and the working data is analyzed to obtain the power data, water flow data and electrical data of the hydrogen production device to be tested. Based on the power data, water flow data and electrical data, the unit water consumption parameters and unit power consumption parameters of the hydrogen production device to be tested are determined. According to the unit power consumption parameters, the hydrogen production efficiency of the hydrogen production device to be tested is obtained, which solves the problem of difficulty in judging the quality of the hydrogen production device. By analyzing the working data of the hydrogen production device, the performance indicators of the hydrogen production system such as unit water consumption, power consumption, and energy efficiency of hydrogen production are obtained, so as to judge the quality of the hydrogen production device to be tested according to the performance indicators.

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

[0113] Step S205, based on the historical working data of the hydrogen production device to be tested, the performance indicators of the hydrogen production device to be tested under different load conditions are obtained, wherein the performance indicators include unit water consumption parameters, unit power consumption parameters and hydrogen production efficiency.

[0114] Step S206: Generate a historical change curve of each performance indicator according to the performance indicators under different load conditions.

[0115] According to the load (Is1≤Imax) working condition, the historical changes of the performance indicators under each working condition (including Is1, Tc, Pc) are statistically analyzed and the historical change curve of the performance indicators is drawn.

[0116] Display the real-time performance indicator values ​​under the current working conditions (including Is1, Tc, Pc), as well as the historical change curves of each performance indicator under each working condition, to help staff judge the pros and cons of hydrogen production equipment.

[0117] It should be noted that the steps shown in the above process or the flowchart in the accompanying drawings 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 can be executed in an order different from that shown here.

[0118] This embodiment also provides a hydrogen production device performance detection system, which is used to implement the above embodiments and preferred implementations, and will not be repeated here. As used below, the terms "module", "unit", "subunit", etc. can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

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

[0120] The acquisition module 31 is used to acquire the working data of the hydrogen production device to be tested when it operates normally.

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

[0122] The pre-processing module 32 is used to analyze the working data to obtain the power data, water flow data and electrical property data of the hydrogen production device to be tested.

[0123] The first analysis module 33 is used to determine the unit water consumption parameter and the unit electricity consumption parameter of the hydrogen production device to be tested based on the power data, the water flow data and the electrical property data.

[0124] The second analysis module 34 is used to obtain the hydrogen production efficiency of the hydrogen production device to be tested according to the unit power consumption parameter.

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

[0126] A first water consumption module is used to obtain the unit hydrogen production water consumption of the electrolyzer according to the flow data and the liquid level data based on a first preset water consumption model; 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 data and the liquid level data.

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

[0129]

[0130] Among them, SH C Ysl is the water consumption per unit of hydrogen production in the electrolyzer; t+Δt is the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt, Ysl t-Δt is the liquid level data of the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the desalted water volume and liquid level function of the preset separation system oxygen side; Ls1 is the flow data of the inlet of the gas-liquid separation system, and Ls4 is the flow data of 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 Ysl is the unit water consumption of hydrogen production system; t+Δt is the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt, Ysl t-Δt is the liquid level data of the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the desalted water volume and liquid level function of the preset separation system oxygen side, Ls1 is the flow data of the gas-liquid separation system inlet; Ys2 t+Δt Ys2 is the liquid level data of the circulating cooling water system tank at time t+Δt, t-Δtis the liquid level data of the circulating cooling water system water tank at time t-Δt, f2(.) is the desalted water volume and liquid level function of the preset circulating water cooling system, Ls2 is the flow data of the circulating cooling water system inlet; Ys3 t+Δt is the liquid level data of the chiller tank at time t+Δt, Ys3 t-Δt is the liquid level data of the water tank of the chiller at time t-Δt, f3(.) is the desalted water volume and liquid level function of the preset chiller, Ls3 is the flow data at the inlet of the chiller; Ls5 is the flow data at the outlet of the hydrogen purification system.

[0134] In some embodiments, water flow data includes flow data and liquid level data, 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] A first power consumption module is used to obtain the DC power consumption per unit hydrogen production of the electrolyzer according to the flow data, the DC voltage data and the DC current data based on a first preset power consumption model; and / or

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

[0137] An AC power consumption module, used to obtain the AC power consumption per unit of hydrogen production according to the power data and flow data based on a preset AC power consumption model; 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 and according to the direct current power consumption per unit of hydrogen production and the alternating current power consumption per unit of hydrogen production of the electrolyzer.

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

[0140]

[0141] Among them, DH CZ is the DC power consumption of the electrolyzer for unit hydrogen production, Is1 is the DC input current of the electrolyzer, Vs1 is the DC input voltage of the electrolyzer, and Ls4 is the flow 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 is the unit hydrogen production power consumption of the hydrogen production system, G1 is the power data at the inlet of the rectifier transformer, G1 is the power data at the inlet of the public-auxiliary transformer, and Ls5 is the flow data at the outlet of the hydrogen purification system.

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

[0146]

[0147] Among them, DH CJ is the unit AC power consumption for hydrogen production; G3 is the power data at the outlet of the public auxiliary transformer, G4 is the power data at the inlet of the desalted water preparation system, G5 is the power data at the inlet of the chiller, and G6 is the power data at the inlet of the hydrogen purification system; Ls1 is the flow data at the inlet of the gas-liquid separation system, Ls2 is the flow data at the inlet of the circulating cooling water system, Ls3 is the flow data at the inlet of the chiller, and Ls4 is the flow data at the outlet of the hydrogen side of the gas-liquid separation system;

[0148] The preset total power consumption models include:

[0149] DH CD =DH CZ +DH CJ

[0150] Among them, DH CD is the total power consumption for hydrogen production, DH CZ DH is the DC power consumption per unit of hydrogen production in the electrolyzer, CJ 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 without considering the power conversion efficiency and the hydrogen purification power consumption based on the total power consumption of unit hydrogen production.

[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 of the embodiments, the system further includes: a history analysis module and a curve drawing module.

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

[0156] The curve drawing module is used to generate the historical change curve of each performance indicator according to the performance indicators under different load conditions.

[0157] Through the above system, the acquisition module 31 collects the working data of the hydrogen production device to be tested during normal operation, the preprocessing module 32 analyzes the working data to obtain the power data, water flow data and electrical data of the hydrogen production device to be tested, the first analysis module 33 determines the unit water consumption parameter and unit power consumption parameter of the hydrogen production device to be tested based on the power data, water flow data and electrical data, and the second analysis module 34 obtains the hydrogen production efficiency of the hydrogen production device to be tested according to the unit power consumption parameter, which solves the problem of difficulty in judging the quality of the hydrogen production device. By analyzing the working data of the hydrogen production device, the performance indicators of the hydrogen production system such as unit water consumption, power consumption, and energy efficiency of hydrogen production are obtained, so as to judge the quality of the hydrogen production device to be tested according to the performance indicators.

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

[0159] This embodiment further 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 execute the steps in any one 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 may be configured to perform the following steps through a computer program:

[0162] S1, collecting the working data of the hydrogen production device to be tested during normal operation.

[0163] S2, analyzing the working data to obtain power data, water flow data and electrical data of the hydrogen production device to be tested.

[0164] S3, determining the unit water consumption parameter and the unit electricity consumption parameter of the hydrogen production device to be tested based on the power data, the water flow data and the electrical property data.

[0165] S4, obtaining the hydrogen production efficiency of the hydrogen production device to be tested according to the unit power consumption parameter.

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

[0167] In one embodiment, Figure 4 is a schematic diagram of the internal structure of an electronic device according to an embodiment of the present application, such as Figure 4 As shown, an electronic device is provided, which may be a server, and its internal structure diagram may be as shown in Figure 4 As shown. The electronic device includes a processor, a memory, a network interface and a database connected via a system bus. Among them, the processor of the electronic device is used to provide computing and control capabilities. The memory of the electronic device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The database of the electronic device is used to store data. The network interface of the electronic device is used to communicate with an external terminal via a network connection. When the computer program is executed by the processor, a method for detecting the performance of a hydrogen production device is implemented.

[0168] Those skilled in the art will understand that Figure 4 The structure shown in the figure is merely a block diagram of a partial structure related to the scheme of the present application, and does not constitute a limitation on the electronic device to which the scheme of 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 a different arrangement of components.

[0169] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory may include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM is available in many forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).

[0170] Those skilled in the art should understand that the technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are 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 above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the attached claims.

Claims

1. A method for detecting the performance of a hydrogen production device, characterized in that: The method comprises: Collect working data of the hydrogen production device to be tested during normal operation; Analyzing the working data to obtain power data, water flow data and electrical property data of the hydrogen production device to be tested; Determine a unit water consumption parameter and a unit electricity consumption parameter of the hydrogen production device to be tested based on the power data, the water flow data and the electrical property data; The hydrogen production efficiency of the hydrogen production device to be tested is obtained according to the unit power consumption parameter.

2. The method according to claim 1, characterized in that The water flow data includes flow data and liquid level data; the determination of the unit water consumption parameter of the hydrogen production device to be tested includes: Based on a first preset water consumption model, obtaining the unit hydrogen production water consumption of the electrolyzer according to the flow data and the liquid level data; and / or 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 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 Ysl is the water consumption per unit hydrogen production of the electrolyzer; t+Δt is the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt, Ysl t-Δt is the liquid level data of the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the desalted water volume and liquid level function of the preset separation system oxygen side; Ls1 is the flow data of the inlet of the gas-liquid separation system, and Ls4 is the flow data of 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 is the unit water consumption of hydrogen production of the hydrogen production system; t+Δt is the liquid level data on the oxygen side of the gas-liquid separation system at time t+Δt, Ysl t-Δt is the liquid level data of the oxygen side of the gas-liquid separation system at time t-Δt, f1(.) is the desalted water volume and liquid level function of the preset separation system oxygen side, Ls1 is the flow data of the gas-liquid separation system inlet; Ys2 t+Δt Ys2 is the liquid level data of the circulating cooling water system tank at time t+Δt, t-Δt is the liquid level data of the circulating cooling water system water tank at time t-Δt, f2(.) is the desalted water volume and liquid level function of the preset circulating water cooling system, Ls2 is the flow data of the circulating cooling water system inlet; Ys3 t+Δt is the liquid level data of the chiller tank at time t+Δt, Ys3 t-Δt is the liquid level data of the water tank of the chiller at time t-Δt, f3(.) is the desalted water volume and liquid level function of the preset chiller, Ls3 is the flow data at the inlet of the chiller; Ls5 is the flow data at the outlet of the hydrogen purification system.

5. The method according to claim 1, characterized in that The water flow data includes flow data and liquid level data, the electrical data includes DC voltage data and DC current data; and the unit power consumption parameter of the hydrogen production device to be tested is determined as follows: Based on a first preset power consumption model, obtaining the DC power consumption per unit hydrogen production of the electrolyzer according to the flow data, the DC voltage data and the DC current data; and / or Based on a second preset power consumption model, obtaining the unit power consumption of hydrogen production of the hydrogen production system according to the power data and the flow data; and / or Based on a preset AC power consumption model, according to the power data and the flow data, the AC power consumption per unit of hydrogen production is obtained; and / or Based on a preset total power consumption model, the unit total power consumption for hydrogen production is obtained according to the unit direct current power consumption for hydrogen production of the electrolyzer and the unit alternating current power consumption for hydrogen production.

6. The method according to claim 5, characterized in that The first preset power consumption model includes: Among them, DH CZ is the DC power consumption per unit hydrogen production of the electrolyzer, Is1 is the DC input current of the electrolyzer, Vs1 is the DC input voltage of the electrolyzer, and Ls4 is the flow data of the hydrogen side outlet of the gas-liquid separation system; The second preset power consumption model includes: Among them, DH XT is the unit hydrogen production power consumption of the hydrogen production system, G1 is the power data at the inlet of the rectifier transformer, G1 is the power data at the inlet of the public-auxiliary transformer, and Ls5 is the flow data at the outlet of the hydrogen purification system.

7. The method according to claim 5, characterized in that The preset AC power consumption model includes: Among them, DH CJ is the AC power consumption of the unit hydrogen production; G3 is the power data of the public auxiliary transformer outlet, G4 is the power data of the desalted water preparation system inlet, G5 is the power data of the chiller inlet, and G6 is the power data of the hydrogen purification system inlet; Ls1 is the flow data of the gas-liquid separation system inlet, Ls2 is the flow data of the circulating cooling water system inlet, Ls3 is the flow data of the chiller inlet, and Ls4 is the flow data of 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 is the total power consumption for hydrogen production per unit, DH CZ is the DC power consumption per unit hydrogen production of the electrolyzer, DH CJ is the AC power consumption for unit hydrogen production.

8. The method according to claim 5, characterized in that The step of obtaining the hydrogen production efficiency of the hydrogen production device to be tested according to the unit power consumption parameter comprises: Based on the unit total power consumption for hydrogen production, determining a first hydrogen production efficiency without considering power conversion efficiency and hydrogen purification power consumption; Based on the unit hydrogen production power consumption of the hydrogen production system, a second hydrogen production efficiency taking into account the efficiency of power conversion and the power consumption of hydrogen purification is determined.

9. The method according to claim 1, characterized in that: The method further comprises: Based on the historical working data of the hydrogen production device to be tested, the performance indicators of the hydrogen production device to be tested under different load conditions are obtained, wherein the performance indicators include unit water consumption parameters, unit power consumption parameters and hydrogen production efficiency; According to the performance indicators under different load conditions, a historical change curve of each performance indicator is generated.

10. A hydrogen production device performance detection system, characterized in that: The system comprises: A collection module, used to collect working data of the hydrogen production device to be tested during normal operation; A preprocessing module, used for analyzing the working data to obtain power data, water flow data and electrical property data of the hydrogen production device to be tested; A first analysis module is used to determine a unit water consumption parameter and a unit electricity consumption parameter of the hydrogen production device to be tested based on the power data, the water flow data and the electrical property data; The second analysis module is used to obtain the hydrogen production efficiency of the hydrogen production device to be tested according to the unit power consumption parameter.

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