Hydrogen production method and system for renewable energy supply based on energy feedback

Abstract

This invention relates to the field of hydrogen production and discloses a renewable energy-based hydrogen production and supply method and system based on energy feedback. The method includes the following steps: generating electricity from solar energy (a renewable energy source) and optimizing the electricity generation efficiency during the process; constructing a water electrolysis system, performing water electrolysis using electricity within the system, detecting the purity of the hydrogen obtained after electrolysis, and optimizing the water electrolysis system based on the hydrogen purity detection results; and constructing an energy feedback system and analyzing and optimizing the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system. This invention enables hydrogen production from solar energy (a renewable energy source) and the delivery of the produced hydrogen as an energy source to a fuel system, forming a closed-loop energy feedback system. This achieves self-sufficiency, effectively reduces dependence on traditional fossil fuels, reduces greenhouse gas emissions, and promotes sustainable energy development.

Description

Technical Field

[0001] This invention relates to the field of hydrogen production, and in particular to a method and system for producing hydrogen from renewable energy sources based on energy feedback. Background Technology

[0002] Fossil fuel hydrogen production is a common method for producing hydrogen. However, the combustion of fossil fuels releases large amounts of greenhouse gases such as carbon dioxide, exacerbating global climate change and the greenhouse effect. Simultaneously, the nitrogen oxides and particulate matter produced by fossil fuel combustion severely impact air quality, causing smog, acid rain, and other atmospheric environmental problems, harming human health and ecosystems. Given the harmful effects of fossil fuel-based hydrogen production, renewable energy sources can be used for hydrogen production. The utilization of renewable energy sources, such as solar, wind, and hydropower, can significantly reduce greenhouse gas emissions and environmental pollution, helping to mitigate climate change and improve air quality. Compared to traditional fossil fuels, hydrogen production using renewable energy is cleaner and more environmentally friendly. Furthermore, renewable energy is sustainable and renewable, unlike fossil fuels which gradually deplete. Using renewable energy for hydrogen production can achieve sustainable and stable energy supply, reducing dependence on finite resources. After being produced from renewable energy, the hydrogen can be used as a power source for hydrogen fuel systems, as the only emission from these systems is water, eliminating environmental pollution. Summary of the Invention

[0003] This invention overcomes the shortcomings of the prior art and provides a method and system for hydrogen production and supply based on energy feedback from renewable energy sources.

[0004] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0005] The first aspect of this invention provides a method for producing hydrogen from renewable energy based on energy feedback, comprising the following steps:

[0006] S102: Acquire information about a solar photovoltaic power generation system, control the electrical energy produced by the solar photovoltaic power generation system, and optimize the solar photovoltaic power generation system during the electrical energy production process;

[0007] S104: Construct a water electrolysis system, electrolyze water through the water electrolysis system to obtain hydrogen, test the purity of the hydrogen, and upgrade and optimize the water electrolysis system based on the purity test results;

[0008] S106: Construct an energy feedback system, analyze the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system, and optimize the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system based on the analysis results.

[0009] Furthermore, in a preferred embodiment of the present invention, S102 specifically includes:

[0010] Obtain a big data network, and based on the big data network, query renewable energy sources, including solar, wind, and hydropower.

[0011] Solar energy is selected as a renewable energy source to obtain a solar photovoltaic power generation system, which includes solar photovoltaic panels, energy storage devices, and photoelectric conversion modules.

[0012] The system controls the solar photovoltaic panels to receive sunlight, converts the sunlight into electrical energy through a photoelectric conversion module, and stores the converted electrical energy in an energy storage device.

[0013] A first photoelectric test time is preset. If the amount of electrical energy converted from sunlight stored in the energy storage device is greater than the preset value within the first photoelectric test time, the solar photovoltaic power generation system is calibrated as a qualified solar photovoltaic power generation system.

[0014] If the amount of electrical energy converted from sunlight stored in the energy storage device is less than a preset value within the first photoelectric test time, the solar photovoltaic panels will be cleaned and their installation status adjusted. The installation status adjustment includes adjusting the installation angle and installation direction of the solar photovoltaic panels.

[0015] Determine whether there are any solar photovoltaic panels in the adjusted installation state that cause the amount of electrical energy converted from sunlight stored in the energy storage device to exceed the preset value within the first photoelectric test time.

[0016] If yes, the corresponding adjusted installation state is set as a qualified installation state, and the installation state of the solar photovoltaic panel is controlled as a qualified installation state to obtain a qualified solar photovoltaic power generation system. If no, the photoelectric conversion efficiency of the photoelectric conversion module is calculated based on the amount of electrical energy converted from sunlight stored in the electrical energy storage device during the first photoelectric test time, and calibrated as the first photoelectric conversion efficiency.

[0017] A photoelectric conversion module that has a photoelectric conversion efficiency greater than the first photoelectric conversion efficiency and satisfies the requirement that the amount of electrical energy converted from sunlight stored in the energy storage device is greater than a preset value within the first photoelectric test time is calibrated as a qualified photoelectric conversion module. The qualified photoelectric conversion module is then installed in a solar photovoltaic power generation system to obtain a qualified solar photovoltaic power generation system.

[0018] Furthermore, in a preferred embodiment of the present invention, S104 specifically includes:

[0019] Obtain an electrolytic cell for water electrolysis, calibrate it as the target electrolytic cell, and obtain a container for storing water electrolysis gas, calibrate it as a water electrolysis gas container.

[0020] A water electrolysis system is constructed based on a qualified solar photovoltaic power generation system, a target electrolysis cell, and a water electrolysis gas container. In the water electrolysis system, the qualified solar photovoltaic power generation system is activated to generate electrical energy, which is then introduced into the target electrolysis cell for water electrolysis to obtain water electrolysis gas. At the same time, the water electrolysis gas is stored in real time through the water electrolysis gas container, and the water electrolysis gas includes hydrogen and oxygen.

[0021] A gas chromatograph and a water electrolysis gas sample are obtained. The water electrolysis gas sample is introduced into the gas chromatograph and separated by the gas chromatographic column in the gas chromatograph to obtain a hydrogen sample. The chromatographic peak surface of the hydrogen sample is calculated in the gas chromatographic column to obtain the peak area of ​​the hydrogen sample.

[0022] The peak area of ​​the hydrogen sample is analyzed to obtain the hydrogen content of the sample. The sampling amount of the water electrolysis gas sample is obtained. Based on the sampling amount of the water electrolysis gas and the hydrogen content, the purity of hydrogen in the water electrolysis gas is calculated and calibrated as a Class I hydrogen purity.

[0023] The purity of a type of hydrogen is analyzed, and a standard hydrogen purity threshold is preset. If the purity of a type of hydrogen is maintained within the standard hydrogen purity threshold, the water electrolysis system is calibrated as a qualified water electrolysis system. If the purity of a type of hydrogen is not maintained within the standard hydrogen purity threshold, the water electrolysis system is calibrated as a water electrolysis system to be optimized.

[0024] The electrolysis conditions of the water electrolysis system to be optimized are adjusted so that the purity of the hydrogen produced by the system is maintained within the standard hydrogen purity threshold, thus obtaining a qualified water electrolysis system.

[0025] Furthermore, in a preferred embodiment of the present invention, the step of adjusting the electrolysis conditions of the water electrolysis system to be optimized, so that the purity of the hydrogen produced by the water electrolysis system after the electrolysis conditions are adjusted is maintained within the standard hydrogen purity threshold, thereby obtaining a qualified water electrolysis system, specifically involves:

[0026] Obtain the electrolysis conditions of the water electrolysis system to be optimized, including the voltage value of the output power of the qualified solar photovoltaic power generation system and the water temperature of the target electrolysis cell;

[0027] The water electrolysis system to be optimized is continuously used to electrolyze water. During the water electrolysis process, the voltage value of the output power of the qualified solar photovoltaic power generation system is adjusted in real time.

[0028] A water temperature regulation sensor is added to the target electrolytic cell. The water temperature regulation sensor is used to monitor and regulate the water temperature of the target electrolytic cell in real time. During the water electrolysis process of the water electrolysis system to be optimized, the water temperature of the target electrolytic cell is regulated in real time by the water temperature regulation sensor.

[0029] During the real-time adjustment of the voltage value of the output power of the qualified solar photovoltaic power generation system and the water temperature of the target electrolysis cell, the purity of the hydrogen obtained by the water electrolysis of water by the water electrolysis system to be optimized is obtained in real time and calibrated as Class II hydrogen purity.

[0030] Real-time analysis of the purity of Class II hydrogen is performed. The voltage value of the output power of a qualified solar photovoltaic power generation system that can maintain the purity of Class II hydrogen within the standard hydrogen purity threshold is calibrated as the qualified voltage value. The water temperature of the target electrolytic cell that can maintain the purity of Class II hydrogen within the standard hydrogen purity threshold is calibrated as the qualified water temperature.

[0031] In the process of water electrolysis by the water electrolysis system to be optimized, the voltage value of the output power of the qualified solar photovoltaic power generation system is controlled to be equal to the qualified voltage value, and the water temperature of the target electrolysis cell is controlled to be equal to the qualified water temperature through the water temperature regulation sensor, so as to obtain a qualified water electrolysis system.

[0032] Furthermore, in a preferred embodiment of the present invention, S106 specifically includes:

[0033] Obtain an energy system that uses hydrogen as fuel, calibrate it as a hydrogen fuel system, and construct an energy feedback system based on the hydrogen fuel system and a qualified water electrolysis system;

[0034] The energy feedback system is operated to control the qualified water electrolysis system to deliver hydrogen to the hydrogen fuel system in real time, and to burn the hydrogen in the hydrogen fuel system to drive the piston in the hydrogen fuel system to do work.

[0035] During the piston's work in the hydrogen fuel system, a preset work test time is set. During the work test time, the number of times the piston in the hydrogen fuel system works is obtained. Based on the work test time and the number of times the piston in the hydrogen fuel system works, the hydrogen delivery efficiency of the energy feedback system is calculated.

[0036] The hydrogen delivery efficiency is analyzed. If the hydrogen delivery efficiency is less than the preset value, the qualified water electrolysis system and hydrogen fuel system in the energy feedback system are selected as the hydrogen delivery pipeline to be analyzed, and a gas pressure monitoring sensor is installed in the hydrogen delivery pipeline to be analyzed.

[0037] During hydrogen transportation, the pressure change rate during hydrogen transportation is monitored in real time by the pressure monitoring sensor. If the pressure change rate during hydrogen transportation is greater than a preset value, the location in the hydrogen transportation pipeline where the pressure change rate is greater than the preset value is obtained and marked as an abnormal location in hydrogen transportation.

[0038] The design layout of the hydrogen delivery pipeline to be analyzed is obtained, and a historical data network is obtained. In the historical data network, the design layout optimization scheme that makes the hydrogen delivery pipeline to be analyzed free from abnormal hydrogen delivery locations is retrieved and the optimized hydrogen delivery pipeline is obtained. In the optimized hydrogen delivery pipeline, there is no situation where the gas pressure change rate is greater than a preset value during hydrogen delivery.

[0039] When there is no pressure change rate greater than the preset value during hydrogen delivery in the optimized hydrogen delivery pipeline, but the hydrogen delivery efficiency is still less than the preset value, a hydrogen pressurization device is obtained. The hydrogen pressurization device is connected to the optimized hydrogen delivery pipeline, and the hydrogen pressurization device is controlled to pressurize the hydrogen during the hydrogen delivery process in the optimized hydrogen delivery pipeline so that the hydrogen delivery efficiency is not less than the preset value, thus obtaining a preliminary qualified energy feedback system.

[0040] The energy conversion efficiency of the preliminary qualified energy feedback system is analyzed, and the preliminary qualified energy feedback system is further optimized based on the analysis results to obtain a qualified energy feedback system.

[0041] Furthermore, in a preferred embodiment of the present invention, the analysis of the energy conversion efficiency of the preliminary qualified energy feedback system, and the secondary optimization of the preliminary qualified energy feedback system based on the analysis results to obtain a qualified energy feedback system, specifically involves:

[0042] The number of piston strokes in the hydrogen fuel system of the preliminary qualified energy feedback system during the power test time is obtained, and the energy conversion efficiency of the preliminary qualified energy feedback system is calculated based on the number of piston strokes in the hydrogen fuel system of the preliminary qualified energy feedback system during the power test time.

[0043] If the energy conversion efficiency of the preliminary qualified energy feedback system is not greater than the preset value, then search the historical data network for all types of catalysts that can improve the hydrogen combustion rate and label them as catalysts to be determined.

[0044] Different types of undetermined catalysts were introduced into the hydrogen fuel system of the preliminary qualified energy feedback system to improve the hydrogen combustion rate, and the catalytic efficiency of different types of undetermined catalysts was calculated based on the hydrogen combustion rate.

[0045] The catalyst with the highest catalytic efficiency is selected and labeled as a qualified catalyst. The qualified catalyst is introduced into the working process of the preliminary qualified energy feedback system to accelerate the hydrogen combustion rate, so that the energy conversion efficiency of the preliminary qualified energy feedback system is greater than the preset value, thus obtaining a qualified energy feedback system.

[0046] A second aspect of the present invention also provides a renewable energy hydrogen production system based on energy feedback. The renewable energy hydrogen production system includes a memory and a processor. The memory stores a renewable energy hydrogen production method. When the processor executes the renewable energy hydrogen production method, it performs the following steps:

[0047] Acquire solar photovoltaic power generation systems, control the electrical energy produced by solar photovoltaic power generation systems, and optimize solar photovoltaic power generation systems during the electrical energy production process;

[0048] A water electrolysis system is constructed to electrolyze water to obtain hydrogen. The purity of the hydrogen is tested, and the water electrolysis system is upgraded and optimized based on the purity test results.

[0049] An energy feedback system was constructed, and the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system were analyzed. Based on the analysis results, the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system were optimized.

[0050] This invention addresses the technical deficiencies in the prior art and offers the following advantages: It generates electricity using solar energy, a renewable energy source, and optimizes the efficiency of electricity generation; it constructs a water electrolysis system, using electricity to electrolyze water, and tests the purity of the hydrogen produced, optimizing the system based on the purity results; it constructs an energy feedback system and analyzes and optimizes the hydrogen delivery efficiency and energy conversion efficiency of the system. This invention enables hydrogen production using solar energy, a renewable energy source, and the delivery of the produced hydrogen to a fuel system, forming a closed-loop energy feedback system. This achieves self-sufficiency, effectively reduces dependence on traditional fossil fuels, reduces greenhouse gas emissions, and promotes sustainable energy development. Attached Figure Description

[0051] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0052] Figure 1 A flowchart of a renewable energy-based hydrogen production functional method based on energy feedback is shown;

[0053] Figure 2 A flowchart is shown to analyze and optimize the hydrogen delivery efficiency and energy conversion efficiency of an energy feedback system.

[0054] Figure 3 A program view of a renewable energy hydrogen production system based on energy feedback is shown. Detailed Implementation

[0055] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0056] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0057] Figure 1 A flowchart of a renewable energy-based hydrogen production method based on energy feedback is shown, including the following steps:

[0058] S102: Acquire information about a solar photovoltaic power generation system, control the electrical energy produced by the solar photovoltaic power generation system, and optimize the solar photovoltaic power generation system during the electrical energy production process;

[0059] S104: Construct a water electrolysis system, electrolyze water through the water electrolysis system to obtain hydrogen, test the purity of the hydrogen, and upgrade and optimize the water electrolysis system based on the purity test results;

[0060] S106: Construct an energy feedback system, analyze the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system, and optimize the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system based on the analysis results.

[0061] Furthermore, in a preferred embodiment of the present invention, S102 specifically includes:

[0062] Obtain a big data network, and based on the big data network, query renewable energy sources, including solar, wind, and hydropower.

[0063] Solar energy is selected as a renewable energy source to obtain a solar photovoltaic power generation system, which includes solar photovoltaic panels, energy storage devices, and photoelectric conversion modules.

[0064] The system controls the solar photovoltaic panels to receive sunlight, converts the sunlight into electrical energy through a photoelectric conversion module, and stores the converted electrical energy in an energy storage device.

[0065] A first photoelectric test time is preset. If the amount of electrical energy converted from sunlight stored in the energy storage device is greater than the preset value within the first photoelectric test time, the solar photovoltaic power generation system is calibrated as a qualified solar photovoltaic power generation system.

[0066] If the amount of electrical energy converted from sunlight stored in the energy storage device is less than a preset value within the first photoelectric test time, the solar photovoltaic panels will be cleaned and their installation status adjusted. The installation status adjustment includes adjusting the installation angle and installation direction of the solar photovoltaic panels.

[0067] Determine whether there are any solar photovoltaic panels in the adjusted installation state that cause the amount of electrical energy converted from sunlight stored in the energy storage device to exceed the preset value within the first photoelectric test time.

[0068] If yes, the corresponding adjusted installation state is set as a qualified installation state, and the installation state of the solar photovoltaic panel is controlled as a qualified installation state to obtain a qualified solar photovoltaic power generation system. If no, the photoelectric conversion efficiency of the photoelectric conversion module is calculated based on the amount of electrical energy converted from sunlight stored in the electrical energy storage device during the first photoelectric test time, and calibrated as the first photoelectric conversion efficiency.

[0069] A photoelectric conversion module that has a photoelectric conversion efficiency greater than the first photoelectric conversion efficiency and satisfies the requirement that the amount of electrical energy converted from sunlight stored in the energy storage device is greater than a preset value within the first photoelectric test time is calibrated as a qualified photoelectric conversion module. The qualified photoelectric conversion module is then installed in a solar photovoltaic power generation system to obtain a qualified solar photovoltaic power generation system.

[0070] It should be noted that renewable energy includes various energy sources, among which solar, wind, and hydropower are the most common. This application selects solar energy as the renewable energy source for hydrogen production because it is the easiest to collect and convert into electricity. Converting solar energy into electricity requires a solar photovoltaic (PV) power generation system. After receiving sunlight through photovoltaic panels, the system converts the sunlight into electrical energy through a photoelectric conversion module for storage. If the amount of electrical energy stored within a preset time is less than a preset value, it indicates an anomaly in the solar PV power generation system, requiring inspection and optimization to ensure the stored electrical energy reaches the preset value. Solar PV panels are devices that collect sunlight. If the panels are dusty or dirty, it will affect the area of ​​sunlight collected, leading to uneven heating and reduced sunlight collection. Furthermore, since the sun's position changes constantly, if the installation angle and direction of the solar PV panels are fixed or incorrect, the area exposed to sunlight will be reduced, resulting in less sunlight collection and thus reduced electrical energy conversion. Therefore, cleaning and adjustment of the installation status of the solar PV panels are necessary. If the stored electrical energy is still low after cleaning and adjusting the installation status of the solar photovoltaic panels, it indicates a problem with the photoelectric conversion module in the process of converting sunlight into electrical energy. Specifically, the photoelectric conversion efficiency of the module is abnormal, leading to significant energy loss during the conversion process. It is necessary to replace the module with a photoelectric conversion module whose stored electrical energy converted from sunlight within a preset time exceeds the preset value. This is a qualified photoelectric conversion module, aiming to improve the photoelectric conversion efficiency, reduce energy loss, and ultimately obtain a qualified solar photovoltaic power generation system.

[0071] Furthermore, in a preferred embodiment of the present invention, S104 specifically includes:

[0072] Obtain an electrolytic cell for water electrolysis, calibrate it as the target electrolytic cell, and obtain a container for storing water electrolysis gas, calibrate it as a water electrolysis gas container.

[0073] A water electrolysis system is constructed based on a qualified solar photovoltaic power generation system, a target electrolysis cell, and a water electrolysis gas container. In the water electrolysis system, the qualified solar photovoltaic power generation system is activated to generate electrical energy, which is then introduced into the target electrolysis cell for water electrolysis to obtain water electrolysis gas. At the same time, the water electrolysis gas is stored in real time through the water electrolysis gas container, and the water electrolysis gas includes hydrogen and oxygen.

[0074] A gas chromatograph and a water electrolysis gas sample are obtained. The water electrolysis gas sample is introduced into the gas chromatograph and separated by the gas chromatographic column in the gas chromatograph to obtain a hydrogen sample. The chromatographic peak surface of the hydrogen sample is calculated in the gas chromatographic column to obtain the peak area of ​​the hydrogen sample.

[0075] The peak area of ​​the hydrogen sample is analyzed to obtain the hydrogen content of the sample. The sampling amount of the water electrolysis gas sample is obtained. Based on the sampling amount of the water electrolysis gas and the hydrogen content, the purity of hydrogen in the water electrolysis gas is calculated and calibrated as a Class I hydrogen purity.

[0076] The purity of a type of hydrogen is analyzed, and a standard hydrogen purity threshold is preset. If the purity of a type of hydrogen is maintained within the standard hydrogen purity threshold, the water electrolysis system is calibrated as a qualified water electrolysis system. If the purity of a type of hydrogen is not maintained within the standard hydrogen purity threshold, the water electrolysis system is calibrated as a water electrolysis system to be optimized.

[0077] It should be noted that hydrogen production using renewable energy involves inserting electrodes into an electrolytic cell, with the other end of the electrodes connected to a qualified solar photovoltaic power generation system. The system outputs electricity to the electrodes, electrolyzing the water in the cell to produce hydrogen and oxygen. After the hydrogen and oxygen are produced, they need to be stored. Hydrogen production requires obtaining the hydrogen content and percentage after electrolysis, which can be determined using gas chromatography. A gas chromatography column is a long, thin tube coated with a stationary phase for separation. When the gas produced by electrolysis enters the column, the stationary phase separates the gases based on their different chemical properties and molecular sizes, resulting in a hydrogen sample. A chromatogram is a graph that indicates the concentration of a substance; the area of ​​the substance on the chromatogram indicates its concentration. Chromatographic analysis of a hydrogen sample yields the peak area of ​​the hydrogen sample, allowing calculation of the hydrogen content in the gas chromatograph, and finally, the purity of the hydrogen. If the hydrogen purity is greater than the preset value, it proves that the electrolysis treatment of the electrolytic cell by the qualified solar photovoltaic power generation system is qualified, and that there are few impurities and other substances in the electrolytic cell. Conversely, if the hydrogen purity is low, the water electrolysis system needs to be optimized to ensure that the purity of the hydrogen obtained from electrolysis is greater than the preset value.

[0078] Furthermore, in a preferred embodiment of the present invention, the step of adjusting the electrolysis conditions of the water electrolysis system to be optimized, so that the purity of the hydrogen produced by the water electrolysis system after the electrolysis conditions are adjusted is maintained within the standard hydrogen purity threshold, thereby obtaining a qualified water electrolysis system, specifically involves:

[0079] Obtain the electrolysis conditions of the water electrolysis system to be optimized, including the voltage value of the output power of the qualified solar photovoltaic power generation system and the water temperature of the target electrolysis cell;

[0080] The water electrolysis system to be optimized is continuously used to electrolyze water. During the water electrolysis process, the voltage value of the output power of the qualified solar photovoltaic power generation system is adjusted in real time.

[0081] A water temperature regulation sensor is added to the target electrolytic cell. The water temperature regulation sensor is used to monitor and regulate the water temperature of the target electrolytic cell in real time. During the water electrolysis process of the water electrolysis system to be optimized, the water temperature of the target electrolytic cell is regulated in real time by the water temperature regulation sensor.

[0082] During the real-time adjustment of the voltage value of the output power of the qualified solar photovoltaic power generation system and the water temperature of the target electrolysis cell, the purity of the hydrogen obtained by the water electrolysis of water by the water electrolysis system to be optimized is obtained in real time and calibrated as Class II hydrogen purity.

[0083] Real-time analysis of the purity of Class II hydrogen is performed. The voltage value of the output power of a qualified solar photovoltaic power generation system that can maintain the purity of Class II hydrogen within the standard hydrogen purity threshold is calibrated as the qualified voltage value. The water temperature of the target electrolytic cell that can maintain the purity of Class II hydrogen within the standard hydrogen purity threshold is calibrated as the qualified water temperature.

[0084] In the process of water electrolysis by the water electrolysis system to be optimized, the voltage value of the output power of the qualified solar photovoltaic power generation system is controlled to be equal to the qualified voltage value, and the water temperature of the target electrolysis cell is controlled to be equal to the qualified water temperature through the water temperature regulation sensor, so as to obtain a qualified water electrolysis system.

[0085] It should be noted that the hydrogen produced by the water electrolysis system to be optimized has low purity, and optimization is needed to increase the hydrogen purity. The low purity of the hydrogen produced in the system may be due to a low output voltage to the electrolysis cell, resulting in incomplete electrolysis of the water and a higher oxygen content and lower hydrogen content. Increasing the electrolysis voltage can improve the hydrogen purity. Another reason for the low purity may be abnormal temperature during electrolysis; both excessively low and high temperatures can affect the electrolysis process. Appropriate temperature can accelerate the electrolysis reaction rate and increase both hydrogen yield and purity. Therefore, it is necessary to simultaneously find suitable output voltage values ​​for the qualified solar photovoltaic power generation system and the water temperature in the electrolysis cell to ensure that the purity of the electrolyzed hydrogen exceeds a preset value. Methods to control the output voltage of the qualified solar photovoltaic power generation system and the water temperature in the electrolysis cell include setting the voltage output parameters of the qualified solar photovoltaic power generation system and adding a heating module to the electrolysis cell for control, thereby obtaining a qualified water electrolysis system.

[0086] Figure 2 A flowchart illustrating a method for analyzing and optimizing the hydrogen delivery efficiency and energy conversion efficiency of an energy feedback system is shown, including the following steps:

[0087] S202: The hydrogen transport efficiency is calculated in the energy feedback system;

[0088] S204: Optimize the hydrogen delivery efficiency of the energy feedback system to obtain a preliminary qualified energy feedback system;

[0089] S206: Based on the energy conversion efficiency of the preliminary qualified energy feedback system, the preliminary qualified energy feedback system is optimized a second time to obtain a qualified energy feedback system.

[0090] Furthermore, in a preferred embodiment of the present invention, S202 specifically includes:

[0091] Obtain an energy system that uses hydrogen as fuel, calibrate it as a hydrogen fuel system, and construct an energy feedback system based on the hydrogen fuel system and a qualified water electrolysis system;

[0092] The energy feedback system is operated to control the qualified water electrolysis system to deliver hydrogen to the hydrogen fuel system in real time, and to burn the hydrogen in the hydrogen fuel system to drive the piston in the hydrogen fuel system to do work.

[0093] During the piston's work in the hydrogen fuel system, a preset work test time is set. During the work test time, the number of times the piston in the hydrogen fuel system works is obtained. Based on the work test time and the number of times the piston in the hydrogen fuel system works, the hydrogen delivery efficiency of the energy feedback system is calculated.

[0094] It should be noted that hydrogen can be used in hydrogen-fueled energy systems, typically hydrogen internal combustion engine systems. These systems generate power by burning hydrogen to drive vehicles or generators, with water as the only emission. Therefore, hydrogen can be used as an energy source for hydrogen fuel systems. Combining a hydrogen fuel system with a qualified water electrolysis system creates an energy feedback system. In this system, water is electrolyzed to produce hydrogen, which powers the hydrogen fuel system. The generated emissions can then be further electrolyzed, forming a closed energy loop. The high-temperature gas produced after hydrogen combustion drives a piston to do work. This piston movement rotates the crankshaft, generating power output. The more work the piston does, the higher the amount of hydrogen burned and the higher the combustion efficiency. The amount of work done by the piston can be determined by the number of piston strokes. If the number of strokes is less than a preset value, it indicates that the hydrogen fuel system in the energy feedback system is burning hydrogen with low efficiency and quantity. This suggests that the energy feedback system may be experiencing insufficient hydrogen supply, low supply efficiency, and low combustion efficiency, which require solutions.

[0095] Furthermore, in a preferred embodiment of the present invention, S204 specifically includes:

[0096] The hydrogen delivery efficiency is analyzed. If the hydrogen delivery efficiency is less than the preset value, the qualified water electrolysis system and hydrogen fuel system in the energy feedback system are selected as the hydrogen delivery pipeline to be analyzed, and a gas pressure monitoring sensor is installed in the hydrogen delivery pipeline to be analyzed.

[0097] During hydrogen transportation, the pressure change rate during hydrogen transportation is monitored in real time by the pressure monitoring sensor. If the pressure change rate during hydrogen transportation is greater than a preset value, the location in the hydrogen transportation pipeline where the pressure change rate is greater than the preset value is obtained and marked as an abnormal location in hydrogen transportation.

[0098] The design layout of the hydrogen delivery pipeline to be analyzed is obtained, and a historical data network is obtained. In the historical data network, the design layout optimization scheme that makes the hydrogen delivery pipeline to be analyzed free from abnormal hydrogen delivery locations is retrieved and the optimized hydrogen delivery pipeline is obtained. In the optimized hydrogen delivery pipeline, there is no situation where the gas pressure change rate is greater than a preset value during hydrogen delivery.

[0099] When there is no pressure change rate greater than the preset value during hydrogen delivery in the optimized hydrogen delivery pipeline, but the hydrogen delivery efficiency is still less than the preset value, a hydrogen pressurization device is obtained. The hydrogen pressurization device is connected to the optimized hydrogen delivery pipeline, and the hydrogen pressurization device is controlled to pressurize the hydrogen during the hydrogen delivery process in the optimized hydrogen delivery pipeline so that the hydrogen delivery efficiency is not less than the preset value, thus obtaining a preliminary qualified energy feedback system.

[0100] It should be noted that hydrogen is transported through a hydrogen pipeline between the qualified water electrolysis system and the hydrogen fuel system. If the hydrogen transport efficiency is low, the hydrogen transport pipeline needs to be analyzed to determine if there are any problems causing the abnormal hydrogen transport. If the hydrogen transport pipeline has ruptures or leaks, it will reduce the gas pressure during the clean gas transport process, resulting in unstable hydrogen transport and a reduction in the amount of hydrogen transported. Gas pressure analysis of the pipeline is performed to find the location of the pipeline with an abnormal gas pressure change rate, i.e., the location of the hydrogen transport anomaly. This location may be the cause of the gas pressure affecting hydrogen transport. The historical data network includes all design layout schemes for the hydrogen transport pipeline. The optimized design layout schemes for the analyzed hydrogen transport pipeline need to be retrieved from the historical data network to eliminate locations in the hydrogen transport pipeline that would cause changes in the gas pressure change rate. If there are no abnormal locations in the hydrogen transport pipeline, but the hydrogen transport efficiency is still lower than the preset value, the hydrogen can be pressurized to improve the energy utilization rate of hydrogen, making the hydrogen transport process more stable and efficient, thus obtaining a preliminary qualified energy feedback system. This invention can analyze and optimize the hydrogen delivery efficiency, improve the hydrogen delivery efficiency, and achieve a more efficient and stable hydrogen supply.

[0101] Furthermore, in a preferred embodiment of the present invention, S206 specifically includes:

[0102] The number of piston strokes in the hydrogen fuel system of the preliminary qualified energy feedback system during the power test time is obtained, and the energy conversion efficiency of the preliminary qualified energy feedback system is calculated based on the number of piston strokes in the hydrogen fuel system of the preliminary qualified energy feedback system during the power test time.

[0103] If the energy conversion efficiency of the preliminary qualified energy feedback system is not greater than the preset value, then search the historical data network for all types of catalysts that can improve the hydrogen combustion rate and label them as catalysts to be determined.

[0104] Different types of undetermined catalysts were introduced into the hydrogen fuel system of the preliminary qualified energy feedback system to improve the hydrogen combustion rate, and the catalytic efficiency of different types of undetermined catalysts was calculated based on the hydrogen combustion rate.

[0105] The catalyst with the highest catalytic efficiency is selected and labeled as a qualified catalyst. The qualified catalyst is introduced into the working process of the preliminary qualified energy feedback system to accelerate the hydrogen combustion rate, so that the energy conversion efficiency of the preliminary qualified energy feedback system is greater than the preset value, thus obtaining a qualified energy feedback system.

[0106] It should be noted that a preliminary qualified energy feedback system indicates that the hydrogen delivery efficiency is qualified, but the energy conversion efficiency of hydrogen in the hydrogen fuel system still needs to be analyzed. Energy conversion efficiency refers to the ratio of the amount of energy converted from hydrogen combustion to drive the piston and perform work to the amount of hydrogen itself. A higher energy conversion efficiency indicates a higher efficiency of the energy feedback system. The energy conversion efficiency of a preliminary qualified energy feedback system can be obtained by calculating the number of piston strokes during the work test time. If the energy conversion efficiency of the preliminary qualified energy feedback system is low, secondary optimization is required. Catalysts can improve the hydrogen combustion rate and increase the hydrogen combustion efficiency, thereby improving the energy conversion efficiency of the preliminary qualified energy feedback system. There are various types of catalysts; the catalyst with the highest hydrogen combustion rate output in the preliminary energy feedback system must be selected to obtain a qualified energy feedback system.

[0107] Furthermore, the renewable energy hydrogen production method based on energy feedback also includes the following steps:

[0108] If the energy conversion efficiency of the preliminary qualified energy feedback system is still less than the preset value after introducing a qualified catalyst during the operation of the preliminary qualified energy feedback system, then the preliminary qualified energy feedback system will be classified as a Class I energy feedback system.

[0109] Hydrogen gas transported in a type of energy feedback system is sampled to obtain a transported hydrogen gas sample, which is then introduced into a mass spectrometer for ionization to obtain charged ions. The mass / charge ratio of the charged ions is analyzed to generate a mass spectrum of the transported hydrogen gas sample.

[0110] Data analysis was performed on the mass spectrum of the transported hydrogen sample. Based on the position and intensity of each peak in the mass spectrum of the transported hydrogen sample, the types of components in the transported hydrogen sample and the relative contents of different components were obtained.

[0111] The standard composition types and relative contents of the hydrogen sample are preset. The composition types and relative contents of different composition types in the hydrogen sample are analyzed. If the composition types and relative contents of different composition types in the hydrogen sample are different from the standard composition types and relative contents, the hydrogen sample delivered in the energy feedback system is labeled as hydrogen with abnormal composition.

[0112] Based on the composition types and relative content of different composition types of hydrogen samples transported in the historical data network, organic compounds that can be separated and purified from hydrogen with abnormal composition are retrieved, labeled as purified organic compounds, and membrane separation technology is introduced to obtain a polymer membrane. The purified organic compounds are placed on the polymer membrane to obtain a purified polymer membrane.

[0113] The purified polymer membrane is installed inside the optimized hydrogen delivery pipeline, so that the hydrogen produced by the qualified water electrolysis system is purified by passing through the purified polymer membrane when it is delivered to the hydrogen fuel system, and thus a qualified energy feedback system is obtained.

[0114] It should be noted that because the water in the electrolytic cell may be contaminated, the composition of the hydrogen obtained from electrolysis may be abnormal, such as the presence of other components, like sulfur. Abnormal chemical composition can not only reduce energy conversion efficiency during combustion but also pollute the environment. Therefore, compositional analysis of the transported hydrogen is necessary. Mass spectrometry can be used for this analysis. The mass spectrometer can perform mass spectrometry analysis on hydrogen samples and analyze the resulting mass spectrum to determine the types and amounts of each component in the hydrogen sample. If the types or amounts of components are abnormal, the hydrogen needs to be treated during transport to ensure that its composition is normal when it enters the hydrogen fuel system for combustion. Membrane separation is a technology based on the permeation and diffusion characteristics of gas molecules on the membrane surface to achieve gas separation and purification. Selectively permeable membrane materials, such as polymer membranes, can be used to separate hydrogen from impurities. Different impurities require different organic compounds. By obtaining different purified organic compounds, adsorbing them onto the polymer membrane, and installing them inside the pipeline, purification processing can be achieved during hydrogen transport.

[0115] Furthermore, the renewable energy hydrogen production method based on energy feedback also includes the following steps:

[0116] A heat accumulator and a heat exchanger are installed in the hydrogen fuel system within a qualified energy feedback system. When the qualified energy feedback system is working, the heat that does not act on the piston after hydrogen combustion is classified as a type of waste heat and the waste heat is collected in the heat accumulator.

[0117] In the heat accumulator, the rate at which the heat accumulator collects a type of waste heat is monitored. If the rate at which the heat accumulator collects a type of waste heat is greater than a standard value, the heat accumulator is controlled to continue outputting the type of waste heat to the piston to perform piston movement.

[0118] If the rate at which the heat accumulator collects a type of waste heat is less than the standard value, the heat accumulator will be controlled to output the type of waste heat to the heat exchanger for waste heat utilization.

[0119] It's important to note that the heat generated from burning hydrogen in a hydrogen fuel system isn't entirely used for piston movement; some waste heat is produced. To prevent this waste heat from dissipating, improve energy efficiency, and balance the system's energy balance, a heat accumulator can be used to collect and reuse it. There are two methods of reuse: if the waste heat collection rate is high, it indicates that a significant amount of waste heat is not being used on the piston. To ensure the piston functions properly, the waste heat needs to be reused on the piston, thus improving its efficiency. If the waste heat collection rate is low, it indicates that the piston is already functioning normally. In this case, the preheating can be used for other purposes, such as a heat exchanger. The heat exchanger's function is to use the waste heat for heating other equipment, such as water heaters or radiators.

[0120] like Figure 3 As shown, a second aspect of the present invention also provides a renewable energy hydrogen production system based on energy feedback. The renewable energy hydrogen production system includes a memory 31 and a processor 32. The memory 31 stores a renewable energy hydrogen production method. When the renewable energy hydrogen production method is executed by the processor 32, it performs the following steps:

[0121] Acquire solar photovoltaic power generation systems, control the electrical energy produced by solar photovoltaic power generation systems, and optimize solar photovoltaic power generation systems during the electrical energy production process;

[0122] A water electrolysis system is constructed to electrolyze water to obtain hydrogen. The purity of the hydrogen is tested, and the water electrolysis system is upgraded and optimized based on the purity test results.

[0123] An energy feedback system was constructed, and the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system were analyzed. Based on the analysis results, the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system were optimized.

[0124] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A renewable energy-based hydrogen production and supply method based on energy feedback, characterized in that, Includes the following steps: S102: Acquire information about a solar photovoltaic power generation system, control the electrical energy produced by the solar photovoltaic power generation system, and optimize the solar photovoltaic power generation system during the electrical energy production process; S104: Construct a water electrolysis system, electrolyze water through the water electrolysis system to obtain hydrogen, test the purity of the hydrogen, and upgrade and optimize the water electrolysis system based on the purity test results; S106: Construct an energy feedback system, analyze the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system, and optimize the hydrogen delivery efficiency and energy conversion efficiency of the energy feedback system based on the analysis results; Specifically, S102 is as follows: Obtain a big data network, and based on the big data network, query renewable energy sources, including solar, wind, and hydropower. Solar energy is selected as a renewable energy source to obtain a solar photovoltaic power generation system, which includes solar photovoltaic panels, energy storage devices, and photoelectric conversion modules. The system controls the solar photovoltaic panels to receive sunlight, converts the sunlight into electrical energy through a photoelectric conversion module, and stores the converted electrical energy in an energy storage device. A first photoelectric test time is preset. If the amount of electrical energy converted from sunlight stored in the energy storage device is greater than the preset value within the first photoelectric test time, the solar photovoltaic power generation system is calibrated as a qualified solar photovoltaic power generation system. If the amount of electrical energy converted from sunlight stored in the energy storage device is less than a preset value within the first photoelectric test time, the solar photovoltaic panels will be cleaned and their installation status adjusted. The installation status adjustment includes adjusting the installation angle and installation direction of the solar photovoltaic panels. Determine whether there are any solar photovoltaic panels in the adjusted installation state that cause the amount of electrical energy converted from sunlight stored in the energy storage device to exceed the preset value within the first photoelectric test time. If yes, the corresponding adjusted installation state is set as a qualified installation state, and the installation state of the solar photovoltaic panel is controlled as a qualified installation state to obtain a qualified solar photovoltaic power generation system. If no, the photoelectric conversion efficiency of the photoelectric conversion module is calculated based on the amount of electrical energy converted from sunlight stored in the electrical energy storage device during the first photoelectric test time, and calibrated as the first photoelectric conversion efficiency. A photoelectric conversion module with a photoelectric conversion efficiency greater than the first photoelectric conversion efficiency and which stores more than a preset value of electrical energy converted from sunlight in the energy storage device within the first photoelectric test time is calibrated as a qualified photoelectric conversion module. The qualified photoelectric conversion module is then installed in a solar photovoltaic power generation system to obtain a qualified solar photovoltaic power generation system. Specifically, S104 is as follows: Obtain an electrolytic cell for water electrolysis, calibrate it as the target electrolytic cell, and obtain a container for storing water electrolysis gas, calibrate it as a water electrolysis gas container. A water electrolysis system is constructed based on a qualified solar photovoltaic power generation system, a target electrolysis cell, and a water electrolysis gas container. In the water electrolysis system, the qualified solar photovoltaic power generation system is activated to generate electrical energy, which is then introduced into the target electrolysis cell for water electrolysis to obtain water electrolysis gas. At the same time, the water electrolysis gas is stored in real time through the water electrolysis gas container, and the water electrolysis gas includes hydrogen and oxygen. A gas chromatograph and a water electrolysis gas sample are obtained. The water electrolysis gas sample is introduced into the gas chromatograph and separated by the gas chromatographic column in the gas chromatograph to obtain a hydrogen sample. The chromatographic peak surface of the hydrogen sample is calculated in the gas chromatographic column to obtain the peak area of ​​the hydrogen sample. The peak area of ​​the hydrogen sample is analyzed to obtain the hydrogen content of the sample. The sampling amount of the water electrolysis gas sample is obtained. Based on the sampling amount of the water electrolysis gas and the hydrogen content, the purity of hydrogen in the water electrolysis gas is calculated and calibrated as a Class I hydrogen purity. The purity of a type of hydrogen is analyzed, and a standard hydrogen purity threshold is preset. If the purity of a type of hydrogen is maintained within the standard hydrogen purity threshold, the water electrolysis system is calibrated as a qualified water electrolysis system. If the purity of a type of hydrogen is not maintained within the standard hydrogen purity threshold, the water electrolysis system is calibrated as a water electrolysis system to be optimized. The electrolysis conditions of the water electrolysis system to be optimized are adjusted so that the purity of the hydrogen produced by the system is maintained within the standard hydrogen purity threshold, thus obtaining a qualified water electrolysis system. Specifically, S106 is as follows: Obtain an energy system that uses hydrogen as fuel, calibrate it as a hydrogen fuel system, and construct an energy feedback system based on the hydrogen fuel system and a qualified water electrolysis system; The energy feedback system is operated to control the qualified water electrolysis system to deliver hydrogen to the hydrogen fuel system in real time, and to burn the hydrogen in the hydrogen fuel system to drive the piston in the hydrogen fuel system to do work. During the piston's work in the hydrogen fuel system, a preset work test time is set. During the work test time, the number of times the piston in the hydrogen fuel system works is obtained. Based on the work test time and the number of times the piston in the hydrogen fuel system works, the hydrogen delivery efficiency of the energy feedback system is calculated. The hydrogen delivery efficiency is analyzed. If the hydrogen delivery efficiency is less than the preset value, the qualified water electrolysis system and hydrogen fuel system in the energy feedback system are selected as the hydrogen delivery pipeline to be analyzed, and a gas pressure monitoring sensor is installed in the hydrogen delivery pipeline to be analyzed. During hydrogen transportation, the pressure change rate during hydrogen transportation is monitored in real time by the pressure monitoring sensor. If the pressure change rate during hydrogen transportation is greater than a preset value, the location in the hydrogen transportation pipeline where the pressure change rate is greater than the preset value is obtained and marked as an abnormal location in hydrogen transportation. The design layout of the hydrogen delivery pipeline to be analyzed is obtained, and a historical data network is obtained. In the historical data network, the design layout optimization scheme that makes the hydrogen delivery pipeline to be analyzed free from abnormal hydrogen delivery locations is retrieved and the optimized hydrogen delivery pipeline is obtained. In the optimized hydrogen delivery pipeline, there is no situation where the gas pressure change rate is greater than a preset value during hydrogen delivery. When there is no pressure change rate greater than the preset value during hydrogen delivery in the optimized hydrogen delivery pipeline, but the hydrogen delivery efficiency is still less than the preset value, a hydrogen pressurization device is obtained. The hydrogen pressurization device is connected to the optimized hydrogen delivery pipeline, and the hydrogen pressurization device is controlled to pressurize the hydrogen during the hydrogen delivery process in the optimized hydrogen delivery pipeline so that the hydrogen delivery efficiency is not less than the preset value, thus obtaining a preliminary qualified energy feedback system. The energy conversion efficiency of the preliminary qualified energy feedback system is analyzed, and the preliminary qualified energy feedback system is further optimized based on the analysis results to obtain a qualified energy feedback system.

2. The renewable energy hydrogen production and supply method based on energy feedback as described in claim 1, characterized in that, The process involves adjusting the electrolysis conditions of the water electrolysis system to be optimized, ensuring that the purity of the hydrogen produced by the adjusted system remains within the standard hydrogen purity threshold, thereby obtaining a qualified water electrolysis system. Specifically: Obtain the electrolysis conditions of the water electrolysis system to be optimized, including the voltage value of the output power of the qualified solar photovoltaic power generation system and the water temperature of the target electrolysis cell; The water electrolysis system to be optimized is continuously used to electrolyze water. During the water electrolysis process, the voltage value of the output power of the qualified solar photovoltaic power generation system is adjusted in real time. A water temperature regulation sensor is added to the target electrolytic cell. The water temperature regulation sensor is used to monitor and regulate the water temperature of the target electrolytic cell in real time. During the water electrolysis process of the water electrolysis system to be optimized, the water temperature of the target electrolytic cell is regulated in real time by the water temperature regulation sensor. During the real-time adjustment of the voltage value of the output power of the qualified solar photovoltaic power generation system and the water temperature of the target electrolysis cell, the purity of the hydrogen obtained by the water electrolysis of water by the water electrolysis system to be optimized is obtained in real time and calibrated as Class II hydrogen purity. Real-time analysis of the purity of Class II hydrogen is performed. The voltage value of the output power of a qualified solar photovoltaic power generation system that can maintain the purity of Class II hydrogen within the standard hydrogen purity threshold is calibrated as the qualified voltage value. The water temperature of the target electrolytic cell that can maintain the purity of Class II hydrogen within the standard hydrogen purity threshold is calibrated as the qualified water temperature. In the process of water electrolysis by the water electrolysis system to be optimized, the voltage value of the output power of the qualified solar photovoltaic power generation system is controlled to be equal to the qualified voltage value, and the water temperature of the target electrolysis cell is controlled to be equal to the qualified water temperature through the water temperature regulation sensor, so as to obtain a qualified water electrolysis system.

3. The renewable energy hydrogen production and supply method based on energy feedback as described in claim 1, characterized in that, The energy conversion efficiency of the preliminary qualified energy feedback system is analyzed, and based on the analysis results, the preliminary qualified energy feedback system is further optimized to obtain a qualified energy feedback system, specifically as follows: The number of piston strokes in the hydrogen fuel system of the preliminary qualified energy feedback system during the power test time is obtained, and the energy conversion efficiency of the preliminary qualified energy feedback system is calculated based on the number of piston strokes in the hydrogen fuel system of the preliminary qualified energy feedback system during the power test time. If the energy conversion efficiency of the preliminary qualified energy feedback system is not greater than the preset value, then search the historical data network for all types of catalysts that can improve the hydrogen combustion rate and label them as catalysts to be determined. Different types of undetermined catalysts were introduced into the hydrogen fuel system of the preliminary qualified energy feedback system to improve the hydrogen combustion rate, and the catalytic efficiency of different types of undetermined catalysts was calculated based on the hydrogen combustion rate. The catalyst with the highest catalytic efficiency is selected and labeled as a qualified catalyst. The qualified catalyst is introduced into the working process of the preliminary qualified energy feedback system to accelerate the hydrogen combustion rate, so that the energy conversion efficiency of the preliminary qualified energy feedback system is greater than the preset value, thus obtaining a qualified energy feedback system.

4. A renewable energy hydrogen production and supply system based on energy feedback, characterized in that, The renewable energy hydrogen production and supply system includes a memory and a processor. The memory stores a renewable energy hydrogen production and supply method program. When the renewable energy hydrogen production and supply method program is executed by the processor, the steps of the renewable energy hydrogen production and supply method as described in any one of claims 1-3 are implemented.

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