Combined electrolytic hydrogen production power supply and power determination method and device thereof

Abstract

The present application proposes a combined electrolytic hydrogen production power supply and a power determination method and device thereof, which relate to the technical field of electrolytic hydrogen production. The method includes: obtaining the first historical power data of the combined electrolytic hydrogen production power supply during the stable hydrogen production time period during the electrolytic hydrogen production process; determining the first power of the phase-controlled branch based on the first historical power data; obtaining the second historical power data of the combined electrolytic hydrogen production power supply and the third historical power data of the phase-controlled branch during the power fluctuation time period during the electrolytic hydrogen production process; determining the second power of the fully controlled branch based on the second historical power data and the third historical power data. The present application combines the fully controlled power supply and the phase-controlled power supply, with the phase-controlled branch assuming the basic output and the fully controlled branch assuming the fluctuating output, thereby achieving a higher dynamic response performance, improving the safety under fluctuating power input, meeting the requirements for efficient conversion under fluctuating power input, and avoiding waste of resources.

Description

Technical Field

[0001] The present application relates to the technical field of electrolytic hydrogen production, and in particular to a combined electrolytic hydrogen production power supply and a method and device for determining power thereof. Background Art

[0002] With the continuous development of renewable energy such as wind power and photovoltaics, the power grid is facing huge instability, and energy storage measures need to be taken to achieve safe and efficient use of energy.

[0003] Among related technologies, hydrogen electrolysis is a form of energy storage with a long storage cycle and high density, enabling large-scale seasonal energy storage and peak shaving. Currently, the application of hydrogen electrolysis as an energy storage method and the design of hydrogen production auxiliary systems, such as power supply and gas-liquid processing, struggle to meet the safety and efficient conversion requirements under fluctuating power inputs. Therefore, improving safety under fluctuating power inputs, increasing the flexibility of hydrogen electrolysis, and meeting the efficient conversion requirements under fluctuating power inputs have become important research directions. Summary of the Invention

[0004] The present application aims to solve at least one of the technical problems in the related art to a certain extent. To this end, one purpose of the present application is to propose a method for determining the power of a combined electrolysis hydrogen production power supply.

[0005] The second objective of the present application is to provide a power determination device for a combined electrolysis hydrogen production power supply.

[0006] The third object of this application is to provide a combined electrolysis hydrogen production power supply.

[0007] The fourth objective of this application is to provide an electronic device.

[0008] A fifth object of the present application is to provide a non-transitory computer-readable storage medium.

[0009] A sixth object of the present application is to provide a computer program product.

[0010] To achieve the above objectives, the first embodiment of the present application proposes a method for determining the power of a combined electrolysis hydrogen production power supply, comprising:

[0011] Acquire first historical power data of a combined electrolysis hydrogen production power supply during a stable hydrogen production period during the electrolysis hydrogen production process, wherein the combined electrolysis hydrogen production power supply includes a phase-controlled branch and multiple fully-controlled branches;

[0012] determining a first power of the phase-controlled branch according to the first historical power data;

[0013] Acquire the second historical power data of the combined electrolysis hydrogen production power supply and the third historical power data of the phase-controlled branch during the power fluctuation period during the electrolysis hydrogen production process;

[0014] The second power of the fully-controlled branch is determined according to the second historical power data and the third historical power data.

[0015] This application combines a fully controlled power supply and a phase-controlled power supply in parallel, using the phase-controlled branch to bear the basic output and the fully controlled branch to bear the fluctuating output, thereby achieving higher dynamic response performance, improving safety under fluctuating power input, improving the flexibility of electrolytic hydrogen production, meeting the high-efficiency conversion requirements under fluctuating power input, and avoiding waste of resources.

[0016] To achieve the above-mentioned purpose, the second embodiment of the present application proposes a power determination device for a combined electrolysis hydrogen production power supply, comprising:

[0017] A first acquisition module is used to obtain first historical power data of the combined electrolysis hydrogen production power supply during a stable hydrogen production period during the electrolysis hydrogen production process, wherein the combined electrolysis hydrogen production power supply includes a phase-controlled branch and multiple fully controlled branches;

[0018] A first determining module, configured to determine a first power of the phase-controlled branch according to first historical power data;

[0019] The second acquisition module is used to obtain the second historical power data of the combined electrolysis hydrogen production power supply and the third historical power data of the phase-controlled branch during the power fluctuation period during the electrolysis hydrogen production process;

[0020] The second determining module is configured to determine the second power of the fully-controlled branch according to the second historical power data and the third historical power data.

[0021] To achieve the above-mentioned purpose, the third embodiment of the present application proposes a combined electrolysis hydrogen production power supply comprising a phase-controlled branch and M fully-controlled branches, where M is a positive integer, and the phase-controlled branch and any fully-controlled branch are connected in parallel;

[0022] The phase-controlled branch includes a thyristor rectifier power supply and a first voltage-regulating transformer, which is used to provide working power for electrolytic hydrogen production at a first power;

[0023] Any fully controlled branch includes an insulated gate bipolar transistor IGBT power supply and a second voltage regulating transformer, which is used to provide working power for electrolysis hydrogen production at a second power, wherein the first power and the second power are determined by the method of the above-mentioned first aspect embodiment.

[0024] To achieve the above-mentioned objectives, a fourth embodiment of the present application provides an electronic device, including:

[0025] at least one processor; and

[0026] a memory communicatively connected to at least one processor; wherein,

[0027] The memory stores instructions that can be executed by at least one processor, and the instructions are executed by at least one processor so that the at least one processor can execute the power determination method of the combined electrolysis hydrogen power supply provided in the embodiment of the first aspect of the present application.

[0028] To achieve the above-mentioned purpose, the fifth embodiment of the present application proposes a computer-readable storage medium on which computer instructions are stored, wherein the computer instructions are used to enable a computer to execute the power determination method of the combined electrolysis hydrogen power supply provided in the first embodiment of the present application.

[0029] To achieve the above-mentioned purpose, the sixth embodiment of the present application proposes a computer program product, including a computer program, which, when executed by a processor, implements the power determination method of the combined electrolysis hydrogen power supply provided in the first embodiment of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of a combined electrolysis hydrogen production power supply according to an embodiment of the present application;

[0031] Figure 2 This is a flow chart of a method for determining power of a combined electrolysis hydrogen production power supply according to one embodiment of the present application;

[0032] Figure 3 This is a flow chart of a method for determining power of a combined electrolysis hydrogen production power supply according to one embodiment of the present application;

[0033] Figure 4 This is a flow chart of a method for determining power of a combined electrolysis hydrogen production power supply according to one embodiment of the present application;

[0034] Figure 5 This is a schematic diagram of a method for determining the power of a combined electrolysis hydrogen production power supply according to an embodiment of the present application;

[0035] Figure 6 This is a structural block diagram of a power determination device for a combined electrolysis hydrogen production power supply according to an embodiment of the present application;

[0036] Figure 7 It is a structural diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0037] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0038] The volatility and intermittency of renewable energy seriously impact the stability and economic efficiency of power systems. As renewable energy capacity increases, the importance of renewable energy storage becomes increasingly prominent. Using renewable energy to power systems such as water electrolysis for hydrogen production and carbon dioxide reduction electrolysis, converting electrical energy into chemical energy, is a key method for large-scale electrical energy storage.

[0039] The combined electrolysis hydrogen production power supply and its power determination method and device according to the embodiment of the present application are described below with reference to the accompanying drawings.

[0040] Figure 1 This is a schematic diagram of a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 1 As shown, the embodiment of the present application takes the combined electrolysis hydrogen production power supply including one phase-controlled branch and one fully-controlled branch as an example for explanation. In other implementations, the number of fully-controlled branches can be M, where M is a positive integer, and the phase-controlled branch and any fully-controlled branch are connected in parallel;

[0041] like Figure 1 As shown, the phase-controlled branch 110 includes a thyristor rectifier power supply 111 and a first voltage-regulating transformer 112, which is used to provide working power for electrolytic hydrogen production at a first power;

[0042] The fully controlled branch 120 includes an insulated gate bipolar transistor (IGBT) power supply 121 and a second voltage regulating transformer 122, which are used to provide working power for electrolysis hydrogen production at a second power. The process of determining the first power and the second power will be introduced in the power determination method of the combined electrolysis hydrogen production power supply below.

[0043] Optionally, the AC input terminal 130 of the combined power supply is connected to an AC input power line, which may come from a wind power, photovoltaic or other power station; and the DC output terminal 140 is connected to a copper busbar terminal of the electrolytic cell.

[0044] Figure 2 This is a flow chart of a method for determining the power of a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 2 As shown, the method includes:

[0045] S201, obtaining first historical power data of a combined electrolytic hydrogen production power supply during a stable hydrogen production period during a hydrogen production process by electrolysis, wherein the combined electrolytic hydrogen production power supply includes a phase-controlled branch and multiple fully-controlled branches.

[0046] The scale of the phase-controlled branch is determined by the constant power level required for electrolytic hydrogen production during a typical historical period or a predicted period. That is to say, the first historical power data of the combined electrolytic hydrogen production power supply during the stable hydrogen production time period during the electrolytic hydrogen production process is obtained, so as to facilitate the subsequent determination of the first power of the phase-controlled branch based on the first historical power data.

[0047] S202: Determine a first power of a phase-controlled branch according to first historical power data.

[0048] In the embodiment of the present application, the average power or the median power of the first historical power data within the stable hydrogen production time period is obtained as the first power of the phase-controlled branch.

[0049] In some implementations, the minimum power of the first historical power data within the stable hydrogen production time period is obtained as the first power of the phase-controlled branch.

[0050] S203 , obtaining second historical power data of the combined electrolytic hydrogen production power supply and third historical power data of the phase-controlled branch during a power fluctuation period during the electrolytic hydrogen production process.

[0051] Under fluctuating power input, the output of hydrogen production by electrolysis will also fluctuate, mainly manifested in power fluctuations. In the embodiment of the present application, second historical power data of the combined electrolysis hydrogen production power supply during the historical power fluctuation period and third historical power data of the phase-controlled branch during the historical power fluctuation period are obtained.

[0052] S204: Determine a second power of the fully-controlled branch according to the second historical power data and the third historical power data.

[0053] In some implementations, the second power of each fully-controlled branch is the same, and the second power of the fully-controlled branch can be determined according to the difference between the second historical power data and the third historical power data.

[0054] In some implementations, multiple fully-controlled branches have different second powers, and multiple candidate second powers can be preset. The candidate second powers are then adjusted based on the difference between the second historical power data and the third historical power data so that the candidate second powers are within the preset power range, thereby obtaining multiple target second powers, wherein the number of target second powers is the same as the number of fully-controlled branches, and the i-th target second power is the second power of the i-th fully-controlled branch.

[0055] In an embodiment of the present application, the first power of the phase-controlled branch is determined based on the first historical power data within the stable hydrogen production period; the second power of the fully-controlled branch is determined based on the second historical power data within the power fluctuation period and the third historical power data of the phase-controlled branch. The present application combines the fully-controlled power supply and the phase-controlled power supply in parallel, with the phase-controlled branch responsible for the basic output and the fully-controlled branch responsible for the fluctuating output, thereby achieving higher dynamic response performance, improving safety under fluctuating power input, increasing the flexibility of electrolytic hydrogen production, meeting the requirements for efficient conversion under fluctuating power input, and avoiding resource waste.

[0056] Figure 3 This is a flow chart of a method for determining the power of a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 3 As shown, the second power of each fully-controlled branch is the same, and the second power determination process of the fully-controlled branch includes:

[0057] S301 , obtaining second historical power data of the combined electrolytic hydrogen production power supply and third historical power data of the phase-controlled branch during a power fluctuation period in the electrolytic hydrogen production process.

[0058] For the content of step S301 , please refer to the relevant introduction in the above embodiment, which will not be repeated here.

[0059] It should be noted that the duration of the power fluctuation period can be one day, one week or one year, and this embodiment of the present application does not limit this.

[0060] S302 : Obtain fourth historical power data according to a difference between the second historical power data and the third historical power data.

[0061] This application combines a fully controlled power supply and a phase-controlled power supply in parallel, with the phase-controlled branch providing the base output and the fully controlled branch providing the fluctuating output. The difference between the total output of the combined electrolysis hydrogen power supply and the base output provided by the phase-controlled branch represents the fluctuating output provided by the fully controlled branch. In other words, the fourth historical power data, obtained from the difference between the second and third historical power data, represents the historical fluctuating power of the fully controlled branch.

[0062] S303: Determine the second power of the fully-controlled branch according to the maximum power in the fourth historical power data.

[0063] In the embodiment of the present application, the maximum value of the historical fluctuating power, that is, the maximum power in the fourth historical power data, is used as the second power of the fully-controlled branch, which can meet the fluctuating output borne by the fully-controlled branch.

[0064] In an embodiment of the present application, fourth historical power data is obtained based on the difference between the second historical power data and the third historical power data, and the second power of the fully-controlled branch is determined based on the maximum power in the fourth historical power data. This application combines a fully-controlled power supply and a phase-controlled power supply in parallel, using the phase-controlled branch to provide the base output. This can improve safety under fluctuating power input, increase the flexibility of electrolytic hydrogen production, meet the requirements for efficient conversion under fluctuating power input, and avoid resource waste.

[0065] Figure 4 This is a flow chart of a method for determining the power of a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 4 As shown, multiple fully-controlled branches have different second powers, and the process of determining the second power of any fully-controlled branch includes:

[0066] S401 , obtaining second historical power data of the combined electrolytic hydrogen production power supply and third historical power data of the phase-controlled branch during a power fluctuation period in the electrolytic hydrogen production process.

[0067] S402 : Acquire fourth historical power data according to a difference between the second historical power data and the third historical power data.

[0068] The contents of step S401 to step S402 can be found in the introduction of the above embodiment and will not be repeated here.

[0069] S403: Acquire a power-time curve according to the fourth historical power data.

[0070] In an embodiment of the present application, the variable power level required for hydrogen production by electrolysis is determined according to the power dispatch situation of the corresponding power station or power grid, and according to power leveling, peak regulation, frequency regulation or other requirements, and is reflected as a power-time curve. In an embodiment of the present application, the power-time curve can be obtained using the fourth historical power data.

[0071] S404 : Acquire multiple third powers according to multiple quantiles of the power-time curve, and acquire the maximum power and the minimum power in the fourth historical power data.

[0072] In the embodiment of the present application, the K quantiles of the power-time curve are obtained as an example, and K third powers, namely P1, P2, ..., P K , and obtain the maximum power P in the fourth historical power data max and minimum power P min . Optionally, K is an integer greater than 3.

[0073] S405 : Obtain the second power of any fully-controlled branch according to the maximum power and the minimum power in the plurality of third power and fourth historical power data.

[0074] In some implementations, the plurality of third powers are sorted according to their magnitudes to obtain a third power sequence. Optionally, the third power sequence can be obtained in ascending order, and the third power sequence can be expressed as [P'1, P'2, ..., P' K ], where P'1 <P’2<...<P’ K Further, the candidate power difference between two adjacent third powers in the third power sequence is obtained, that is, the candidate power difference △P1=P'1-P'2; the candidate power difference △P2=P'3-P'2; ...; the candidate power difference △P K-1 =P' K -P' K-1 The second power of any fully-controlled branch is determined according to the candidate power difference, the maximum power, and the minimum power in the fourth historical power data.

[0075] In some implementations, multiple candidate power difference values ​​are sorted according to their sizes to obtain a candidate power difference value sequence. Optionally, the candidate power difference value sequence can be expressed as [△P'1, △P'2, ..., △P' K-1 ], where △P'1<△P'2<...<△P' K-1 According to the maximum power P in the fourth historical power data max and minimum power P min The candidate power difference sequence is adjusted to obtain a target power difference sequence, so that any power difference in the target power difference sequence is smaller than the maximum power in the fourth historical power data and larger than the minimum power in the fourth historical power data.

[0076] In some implementations, the process of adjusting the candidate power difference sequence according to the minimum power in the fourth historical power data includes: in response to the minimum candidate power difference ΔP'1 in the candidate power difference sequence being less than the minimum power P in the fourth historical power data, min , obtain the first sum of the two smallest candidate power difference values ​​among the candidate power difference values, and adjust the candidate power difference sequence according to the first sum. That is, if △P'1 <P min , get the first sum value △P' h =△P'1+△P'2, and then according to △P'3, ..., △P' in the candidate power difference sequence K-1 , and the first sum △P' h A total of K-2 data are reordered to obtain an adjusted candidate power difference sequence.

[0077] In some implementations, the process of adjusting the candidate power difference sequence according to the maximum power in the fourth historical power data includes: responding to the maximum candidate power difference ΔP′ in the candidate power difference sequence. K-1 Greater than the maximum power P in the fourth historical power data max , obtaining a second sum of the largest N candidate power difference values ​​among the candidate power difference values, and adjusting the candidate power difference value sequence according to an average value of the second sums, where N is an integer greater than 1.

[0078] Take N value 2 as an example to illustrate, if △P' K-1 >P max , get the average value of the second sum: △P' p =(△P' K-2 +△P' K-1 ) / 2, and then according to the candidate power difference sequence △P'1, △P'2, ..., △P' K-3 , and the two first sums △P' p A total of K-1 data are reordered to obtain an adjusted candidate power difference sequence.

[0079] According to the above steps, the candidate power difference sequence is adjusted until any candidate power difference in the adjusted candidate power difference sequence is within [P min ,P max ] range, determine that the candidate power difference sequence is the target power difference sequence, the i-th power difference in the target power difference sequence is the second power of the i-th fully-controlled branch, i is a positive integer, and the number of power differences in the target power difference sequence is the same as the number of fully-controlled branches.

[0080] The following combination Figure 5 The adjustment process of the candidate power difference sequence of the embodiment of the present application is described in detail. Figure 5 As shown, in the embodiment of the present application, the candidate power difference sequence can be expressed as [△P'1, △P'2, ..., △P' K-1 ], where △P'1<△P'2<...<△P' K-1 For any candidate power difference value △P' in the candidate power difference sequence x , judge △P' x and the minimum power P in the fourth historical power data min The size relationship, if △P' x <P min , obtain the first sum of the two smallest candidate power difference values ​​in the candidate power difference values, and adjust the candidate power difference sequence according to the first sum, and obtain the updated candidate power difference sequence until △P'1≥P in the candidate power difference sequence min, continue to judge any candidate power difference value △P' in the candidate power difference sequence y The maximum power data among the fourth

[0081] Power P max The size relationship, if △P' y >P max , obtain the second sum of the largest N 5 candidate power difference values ​​among the candidate power difference values, and adjust the candidate power difference sequence according to the average value of the second sum, until any candidate power difference value in the adjusted candidate power difference sequence is within [P min ,P max ]

[0082] range, determining the candidate power difference sequence as the target power difference sequence.

[0083] In an embodiment of the present application, a power-time curve is obtained based on the fourth historical power data, multiple third powers are obtained based on the multi-quantile of the power-time curve, and the maximum power and minimum power of 0 in the fourth historical power data are obtained. The second power of any fully-controlled branch is obtained based on the maximum power and minimum power in the multiple third powers and the fourth historical power data. The present application combines a fully-controlled power supply and a phase-controlled power supply in parallel, using a fully-controlled branch to bear the fluctuating output, achieving higher dynamic response performance, improving safety under fluctuating power input, improving the flexibility of electrolytic hydrogen production, meeting the efficient conversion requirements under fluctuating power input, and avoiding resource waste.

[0084] Based on the same application concept, the embodiment of the present application further provides a power determination device for a combined electrolysis hydrogen production power supply.

[0085] Figure 6 This is a structural block diagram of a power determination device for a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 6 As shown, the power determination device 600 of the combined electrolysis hydrogen production power supply of the embodiment of the present application includes:

[0086] A first acquisition module 610 is configured to acquire first historical power data of the combined electrolysis hydrogen production power supply during a stable hydrogen production period during the electrolysis hydrogen production process, wherein the combined electrolysis hydrogen production power supply includes a phase-controlled branch and multiple fully-controlled branches;

[0087] A first determining module 620, configured to determine a first power of the phase-controlled branch according to first historical power data;

[0088] The second acquisition module 630 is used to obtain the second historical power data of the combined electrolysis hydrogen production power supply and the third historical power data of the phase-controlled branch during the power fluctuation period during the electrolysis hydrogen production process;

[0089] The second determining module 640 is configured to determine a second power of the fully-controlled branch according to the second historical power data and the third historical power data.

[0090] Determining a second power of the fully-controlled branch according to the second historical power data and the third historical power data includes:

[0091] Acquire fourth historical power data according to the difference between the second historical power data and the third historical power data;

[0092] The second power of the fully-controlled branch is determined according to the fourth historical power data.

[0093] In some implementations, the second power of each fully-controlled branch is the same, and the second determining module 640 is further configured to:

[0094] The second power of the fully-controlled branch is determined according to the maximum power in the fourth historical power data.

[0095] In some implementations, the multiple fully-controlled branches have different second powers, and the second determining module 640 is further configured to:

[0096] Acquire a power-time curve according to the fourth historical power data;

[0097] obtaining a plurality of third powers according to multiple quantiles of the power-time curve, and obtaining a maximum power and a minimum power in the fourth historical power data;

[0098] The second power of any fully-controlled branch is obtained according to the maximum power and the minimum power in the plurality of third power and fourth historical power data.

[0099] In some implementations, the second determining module 640 is further configured to:

[0100] sorting the plurality of third powers according to their magnitudes to obtain a third power sequence;

[0101] Obtaining a candidate power difference between two adjacent third powers in the third power sequence;

[0102] The second power of any fully-controlled branch is determined according to the candidate power difference, the maximum power and the minimum power in the fourth historical power data.

[0103] In some implementations, the second determining module 640 is further configured to:

[0104] Sort the multiple candidate power difference values ​​according to the size of the candidate power difference values ​​to obtain a candidate power difference value sequence;

[0105] Adjusting the candidate power difference sequence according to the maximum power and the minimum power in the fourth historical power data to obtain a target power difference sequence, so that any power difference in the target power difference sequence is less than the maximum power in the fourth historical power data and greater than the minimum power in the fourth historical power data;

[0106] The i-th power difference in the target power difference sequence is determined to be the second power of the i-th fully-controlled branch, where i is a positive integer and the number of power differences in the target power difference sequence is the same as the number of fully-controlled branches.

[0107] In some implementations, the second determining module 640 is further configured to:

[0108] In response to a minimum candidate power difference value in the candidate power difference value sequence being less than a minimum power in the fourth historical power data, obtaining a first sum of two minimum candidate power difference values ​​in the candidate power difference values, and adjusting the candidate power difference sequence according to the first sum; and / or

[0109] In response to the maximum candidate power difference in the candidate power difference sequence being greater than the maximum power in the fourth historical power data, a second sum of the N largest candidate power difference values ​​in the candidate power difference is obtained, and the candidate power difference sequence is adjusted according to the average value of the second sum, where N is an integer greater than 1.

[0110] This application combines a fully controlled power supply and a phase-controlled power supply in parallel, using a fully controlled branch to bear the fluctuating output, achieving higher dynamic response performance, which can improve the safety under fluctuating power input, increase the flexibility of electrolytic hydrogen production, meet the high-efficiency conversion requirements under fluctuating power input, and avoid waste of resources.

[0111] Based on the same application concept, an embodiment of the present application also provides an electronic device.

[0112] Figure 7 This is a schematic diagram of the structure of the electronic device provided in the embodiment of the present application. Figure 7 As shown, the electronic device 700 includes a memory 701, a processor 702, and a computer program product stored in the memory 701 and executable on the processor 702. When the processor executes the computer program, the power determination method of the combined electrolysis hydrogen power supply is implemented.

[0113] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) that contain computer-usable program code.

[0114] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0115] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0116] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0117] Based on the same application concept, an embodiment of the present application further provides a computer-readable storage medium on which computer instructions are stored, wherein the computer instructions are used to enable a computer to execute the power determination method of the combined electrolysis hydrogen power supply in the above embodiment.

[0118] Based on the same application concept, an embodiment of the present application further provides a computer program product, including a computer program. When the computer program is executed by a processor, the power determination method of the combined electrolysis hydrogen power supply in the above embodiment is implemented.

[0119] It should be noted that in the claims, any reference signs placed between brackets shall not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claim. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. The present application may be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, and third etc. does not indicate any order. These words may be interpreted as names.

[0120] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0121] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present application.

[0122] Obviously, those skilled in the art may make various changes and modifications to the present application without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present application fall within the scope of the claims and their equivalents, the present application is intended to include such modifications and variations.

Claims

1. A method for determining the power of a combined electrolysis hydrogen production power supply, characterized in that: include: Acquire first historical power data of a combined electrolysis hydrogen production power supply during a stable hydrogen production period during the electrolysis hydrogen production process, wherein the combined electrolysis hydrogen production power supply includes a phase-controlled branch and multiple fully-controlled branches; determining a first power of the phase-controlled branch according to the first historical power data; Acquire second historical power data of the combined electrolysis hydrogen production power supply and third historical power data of the phase-controlled branch during a power fluctuation period during the electrolysis hydrogen production process; determining a second power of the fully-controlled branch according to the second historical power data and the third historical power data; The determining the second power of the fully-controlled branch according to the second historical power data and the third historical power data includes: Acquire fourth historical power data according to the difference between the second historical power data and the third historical power data; determining a second power of the fully-controlled branch according to the fourth historical power data; The multiple fully-controlled branches have different second powers, and determining the second powers of the fully-controlled branches according to the fourth historical power data includes: Acquire a power-time curve according to the fourth historical power data; acquiring a plurality of third powers according to multiple quantiles of the power-time curve, and acquiring a maximum power and a minimum power in the fourth historical power data; The second power of any fully-controlled branch is obtained according to the maximum power and the minimum power in the multiple third powers and the fourth historical power data.

2. The method according to claim 1, characterized in that The obtaining, according to the maximum power and the minimum power in the plurality of third powers and the fourth historical power data, the second power of any fully-controlled branch includes: Sort the multiple third powers according to their magnitudes to obtain a third power sequence; Obtaining a candidate power difference between two adjacent third powers in the third power sequence; The second power of any fully-controlled branch is determined according to the candidate power difference, the maximum power and the minimum power in the fourth historical power data.

3. The method according to claim 2, characterized in that The determining, according to the candidate power difference and the maximum power and the minimum power in the fourth historical power data, the second power of any fully-controlled branch includes: Sort the multiple candidate power difference values ​​according to the magnitude of the candidate power difference values ​​to obtain a candidate power difference value sequence; Adjusting the candidate power difference sequence according to the maximum power and the minimum power in the fourth historical power data to obtain a target power difference sequence, so that any power difference in the target power difference sequence is less than the maximum power in the fourth historical power data and greater than the minimum power in the fourth historical power data; The i-th power difference in the target power difference sequence is determined as the second power of the i-th fully-controlled branch, where i is a positive integer and the number of power differences in the target power difference sequence is the same as the number of the fully-controlled branches.

4. The method according to claim 3, characterized in that The adjusting the candidate power difference sequence according to the maximum power and the minimum power in the fourth historical power data includes: In response to a minimum candidate power difference value in the candidate power difference value sequence being less than a minimum power in the fourth historical power data, obtaining a first sum of two minimum candidate power difference values ​​in the candidate power difference values, and adjusting the candidate power difference sequence according to the first sum; and / or In response to the maximum candidate power difference value in the candidate power difference value sequence being greater than the maximum power in the fourth historical power data, a second sum of the largest N candidate power difference values ​​in the candidate power difference values ​​is obtained, and the candidate power difference value sequence is adjusted according to the average value of the second sum value, where N is an integer greater than 1.

5. A power determination device for a combined electrolytic hydrogen production power supply, characterized in that: include: A first acquisition module is configured to acquire first historical power data of a combined electrolysis hydrogen production power supply during a stable hydrogen production period during the electrolysis hydrogen production process, wherein the combined electrolysis hydrogen production power supply includes a phase-controlled branch and multiple fully-controlled branches; a first determining module, configured to determine a first power of the phase-controlled branch according to the first historical power data; A second acquisition module is used to acquire second historical power data of the combined electrolysis hydrogen production power supply and third historical power data of the phase-controlled branch during a power fluctuation period during the electrolysis hydrogen production process; a second determining module, configured to determine a second power of the fully-controlled branch according to the second historical power data and the third historical power data; The second determining module is further configured to obtain fourth historical power data based on a difference between the second historical power data and the third historical power data; determining a second power of the fully-controlled branch according to the fourth historical power data; The multiple fully-controlled branches have different second powers, and determining the second powers of the fully-controlled branches according to the fourth historical power data includes: Acquire a power-time curve according to the fourth historical power data; acquiring a plurality of third powers according to multiple quantiles of the power-time curve, and acquiring a maximum power and a minimum power in the fourth historical power data; The second power of any fully-controlled branch is obtained according to the maximum power and the minimum power in the multiple third powers and the fourth historical power data.

6. A combined electrolysis hydrogen production power supply, characterized in that: It includes a phase-controlled branch and M fully-controlled branches, where M is a positive integer, and the phase-controlled branch and any fully-controlled branch are connected in parallel; The phase-controlled branch includes a thyristor rectifier power supply and a first voltage-regulating transformer, which is used to provide working power for electrolytic hydrogen production at a first power; Any fully controlled branch includes an insulated gate bipolar transistor IGBT power supply and a second voltage regulating transformer, which is used to provide working power for electrolysis hydrogen production at a second power, wherein the first power and the second power are determined by any method in claims 1-4.

7. An electronic device comprising: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 4.

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