Combined electrolysis hydrogen production power supply distribution control method and device

Abstract

The present application proposes a distribution control method and device for a combined electrolytic hydrogen production power supply, which relates to the technical field of electrolytic hydrogen production. The method includes: obtaining the input power of the combined electrolytic hydrogen production power supply, the first working power range of the phase-controlled branch, and the second working power range of M fully controlled branches; in response to the input power within the first working power range, controlling the phase-controlled branch to absorb the input power; in response to the input power being greater than the maximum first working power within the first working power range, obtaining the first load power of the phase-controlled branch, and controlling the phase-controlled branch and N fully controlled branches to jointly absorb the input power according to the first load power, input power, and second working power range. The present application realizes flexible power distribution of the power supply part under fluctuating power input, improves operating efficiency, can realize efficient energy conversion in the power supply link of electrolytic hydrogen production equipment for the purpose of energy storage, and improves compatibility with renewable energy.

Description

Technical Field

[0001] The present application relates to the technical field of electrolytic hydrogen production, and in particular to a distribution control method and device for a combined electrolytic hydrogen production power supply. 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] Hydrogen production by electrolysis is a form of energy storage with a long energy storage cycle and high density, which can achieve large-scale seasonal energy storage and peak regulation. In the process of large-scale water electrolysis hydrogen production interacting with renewable energy and the power grid, the hydrogen production power supply has a significant impact on the grid-side power quality, electricity-to-hydrogen conversion efficiency and the safety of hydrogen production electricity. In related technologies, when the electrolyzer deviates from the rated power, the grid-side harmonics are serious and the power conversion efficiency decreases, which is not conducive to dynamic hydrogen production applications. Therefore, how to improve the flexibility of power distribution control, maintain high power quality and conversion efficiency within a wider power range, and avoid wasting resources has become one of the 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 distribution control method for a combined electrolysis hydrogen production power source.

[0005] The second purpose of this application is to provide a distribution control device for a combined electrolysis hydrogen production power supply.

[0006] The third objective of this application is to provide an electronic device.

[0007] A fourth object of the present application is to provide a non-transitory computer-readable storage medium.

[0008] A fifth object of this application is to provide a computer program product.

[0009] To achieve the above objectives, the first embodiment of the present application proposes a method for controlling the distribution of a combined electrolysis hydrogen production power source, comprising:

[0010] Obtaining a first operating power range of a phase-controlled branch in a combined electrolysis hydrogen production power supply, a second operating power range of M fully-controlled branches in the combined electrolysis hydrogen production power supply, and an input power of the combined electrolysis hydrogen production power supply, wherein the phase-controlled branch and any fully-controlled branch are connected in parallel, and M is a positive integer;

[0011] In response to the input power being within a first operating power range, controlling the phase-controlled branch to absorb the input power;

[0012] In response to the input power being greater than the maximum first operating power within the first operating power range, the first load power of the phase-controlled branch is obtained, and the phase-controlled branch and N fully-controlled branches are controlled to jointly absorb the input power according to the first load power, the input power and the second operating power range, where N takes a value from 1 to M.

[0013] This application realizes flexible power distribution of the power supply part under fluctuating power input. On the premise of ensuring that the grid-side harmonics meet the requirements, each power supply is made to operate within the optimal power range as much as possible, thereby improving operating efficiency. It can realize efficient energy conversion in the power supply link of electrolytic hydrogen production equipment for the purpose of energy storage, improve the compatibility with renewable energy, and reduce the power abandonment rate.

[0014] To achieve the above-mentioned objectives, the second embodiment of the present application proposes a distribution control device for a combined electrolysis hydrogen production power supply, comprising:

[0015] an acquisition module, configured to acquire a first operating power range of a phase-controlled branch in a combined electrolysis hydrogen production power supply, a second operating power range of M fully-controlled branches in the combined electrolysis hydrogen production power supply, and an input power of the combined electrolysis hydrogen production power supply, wherein the phase-controlled branch and any fully-controlled branch are connected in parallel, and M is a positive integer;

[0016] A first control module is configured to control the phase-controlled branch to absorb the input power in response to the input power being within a first operating power range;

[0017] The second control module is used to obtain the first load power of the phase-controlled branch in response to the input power being greater than the maximum first working power within the first working power range, and control the phase-controlled branch and N fully-controlled branches to jointly absorb the input power according to the first load power, the input power and the second working power range, where N takes a value from 1 to M.

[0018] To achieve the above-mentioned objectives, a third embodiment of the present application provides an electronic device, including:

[0019] at least one processor; and

[0020] a memory communicatively connected to at least one processor; wherein,

[0021] 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 distribution control method of the combined electrolysis hydrogen power supply provided in the embodiment of the first aspect of the present application.

[0022] To achieve the above-mentioned purpose, the fourth 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 distribution control method of the combined electrolysis hydrogen power supply provided in the first embodiment of the present application.

[0023] To achieve the above-mentioned purpose, the fifth embodiment of the present application proposes a computer program product, including a computer program, which, when executed by a processor, implements the distribution control method of the combined electrolysis hydrogen production power supply provided in the first embodiment of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of a combined electrolysis hydrogen production power supply according to an embodiment of the present application;

[0025] Figure 2 This is a flow chart of a method for controlling the distribution of a combined electrolysis hydrogen production power supply according to an embodiment of the present application;

[0026] Figure 3 This is a flow chart of a method for controlling the distribution of a combined electrolysis hydrogen production power supply according to an embodiment of the present application;

[0027] Figure 4 This is a flow chart of a method for controlling the distribution of a combined electrolysis hydrogen production power supply according to an embodiment of the present application;

[0028] Figure 5 This is a schematic diagram of a method for controlling the distribution of a combined electrolysis hydrogen production power source according to an embodiment of the present application;

[0029] Figure 6 This is a structural block diagram of a distribution control device for a combined electrolysis hydrogen production power supply according to an embodiment of the present application;

[0030] Figure 7 It is a structural diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0031] 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.

[0032] 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.

[0033] The following describes the distribution control method and device of the combined electrolysis hydrogen production power supply according to the embodiment of the present application in conjunction with the accompanying drawings.

[0034] Figure 1This 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 a phase-controlled branch and a 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.

[0035] 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 are used to absorb power under the control of the controller.

[0036] 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 absorb power under the control of the controller. The process of the combined electrolysis hydrogen production power supply absorbing power under the control of the controller will be introduced in the following distribution control method of the combined electrolysis hydrogen production power supply.

[0037] 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. The DC output terminal 140 is connected to the copper busbar terminal of the electrolytic cell.

[0038] Figure 2 This is a flow chart of a method for controlling the distribution of a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 2 As shown, the method includes:

[0039] S201, obtain the first operating power range of the phase-controlled branch in the combined electrolysis hydrogen production power supply, the second operating power range of M fully-controlled branches in the combined electrolysis hydrogen production power supply, and the input power of the combined electrolysis hydrogen production power supply, the phase-controlled branch and any fully-controlled branch are connected in parallel, and M is a positive integer.

[0040] The embodiments of the present application may be executed by a controller or a server, such as a computer.

[0041] The AC input end of the combined power supply is connected to the AC input power line to absorb the input power. However, since the input power may be volatile, in the embodiment of the present application, the first operating power range of the phase-controlled branch and the second operating power range of the M fully controlled branches in the combined electrolysis hydrogen production power supply determine the output borne by each branch in the combined electrolysis hydrogen production power supply.

[0042] In the embodiment of the present application, the operating power range of each branch can be obtained based on experimental measurements. Optionally, to improve the accuracy and efficiency of the operating power range, in the embodiment of the present application, the first operating power range can be obtained based on the first power-harmonic curve of the phase-controlled branch, and the second operating power range can be obtained based on the second power-harmonic curve of the fully-controlled branch.

[0043] S202 : In response to the input power being within a first operating power range, controlling the phase-controlled branch to absorb the input power.

[0044] In some implementations, the minimum first operating power in the first operating power range is the lowest operating load of the phase-controlled branch, and the maximum first operating power in the first operating power range is the highest operating load of the phase-controlled branch. Therefore, if the input power is within the first operating power range, it means that the phase-controlled branch has the ability to absorb all input power, and the phase-controlled branch is controlled to absorb the input power.

[0045] S203, in response to the input power being greater than the maximum first operating power within the first operating power range, obtain the first load power of the phase-controlled branch, and control the phase-controlled branch and N fully-controlled branches to jointly absorb the input power according to the first load power, the input power and the second operating power range, where N takes a value from 1 to M.

[0046] In some implementations, if the input power is greater than the maximum first operating power within the first operating power range, it indicates that the phase-controlled branch does not have the ability to absorb all the input power. On the basis of controlling the phase-controlled branch to absorb power, it is also necessary to call the fully controlled branch to jointly absorb the input power.

[0047] In the embodiment of the present application, the minimum second operating power within the second operating power range is the minimum operating load of the fully-controlled branch, and the maximum second operating power within the second operating power range is the maximum operating load of the fully-controlled branch. Therefore, a portion of the input power can be absorbed based on the first load power of the phase-controlled branch, and the remaining power can be absorbed by calling N fully-controlled branches. In some implementations, if the remaining power is greater than the maximum second operating power within the second operating power range, it means that the remaining power exceeds the maximum operating load of the fully-controlled branch. Other energy storage or loads can be controlled to absorb the portion of the remaining power that exceeds the operating load of the fully-controlled branch.

[0048] In the embodiment of the present application, in response to the input power being within the first working power range, the phase-controlled branch is controlled to absorb the input power; in response to the input power being greater than the maximum first working power within the first working power range, the first load power of the phase-controlled branch is obtained, and the phase-controlled branch and N fully controlled branches are controlled to jointly absorb the input power according to the first load power, input power and second working power range. The present application realizes the flexible power distribution of the power supply part under the fluctuating power input, and ensures the power supply is in a stable state.

[0049] Under the premise of ensuring that the grid side harmonics meet the requirements, each power supply is made to work within the optimal power range as much as possible, thereby improving the operating efficiency and achieving high efficiency in the power supply link of the electrolytic hydrogen production equipment for the purpose of energy storage.

[0050] Efficient energy conversion, improve compatibility with renewable energy, and reduce power abandonment rate.

[0051] In some implementations, in response to the input power being less than the minimum first operating power within the first operating power range, it is indicated that the current input power is insufficient to support the minimum power of the combined electrolysis hydrogen production power supply.

[0052] The power consumption of external energy storage or load can be controlled by the load rate. In other words, the AC input power zero line is connected to an external energy storage or load module to consume the input power. For example, the external energy storage or load module can be an electrochemical energy storage battery, supercapacitor, gas generator set, etc.

[0053] Figure 3 This is a flow chart of a method for controlling the distribution of a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 3 As shown, the phase-controlled branch and N fully-controlled branches are controlled to jointly absorb the input power according to the first load power, input power and second working power range, including: 5S301, in response to the input power being greater than the maximum first working power within the first working power range, the first load power of the phase-controlled branch is obtained.

[0054] For the content of step S301 , please refer to the content of the above embodiment and will not be repeated here.

[0055] S302: Obtain a power difference between input power and first load power.

[0056] In some implementations, if the input power is greater than the maximum first working power within the first working power range, it indicates that the phase-controlled branch does not have the ability to absorb all the input power.

[0057] In addition to absorbing the power, it is also necessary to call on the fully controlled branch to jointly absorb the input power. In other words, based on the first load power of the phase-controlled branch to absorb part of the input power, the fully controlled branch is called on to jointly absorb the input power except for the first load power.

[0058] S303 , in response to the power difference being within the second operating power range, controlling the phase-controlled branch to absorb power at the first load power, and controlling N fully-controlled branches to absorb power according to the power difference.

[0059] In the embodiment of the present application, the rated power and maximum working coefficient of any fully controlled branch among the M fully controlled branches are obtained. For any fully controlled branch among the M fully controlled branches, the second load power of the fully controlled branch is obtained according to the product of the rated power and the maximum working coefficient of the fully controlled branch. According to the second load power of any fully controlled branch, the power consumption of N fully controlled branches is controlled from the M fully controlled branches. In other words, by sorting the M fully controlled branches according to the rated power, the rated power sequence of the M fully controlled branches can be obtained, that is, [P1, P2, ..., P M ], if the power difference is P c , then the power absorbed by N fully controlled branches meets the following conditions:

[0060]

[0061] Among them, a j,max is the upper limit of the allowable working coefficient of the jth fully controlled branch, P j is the rated power of the jth fully-controlled branch, and j ranges from 1 to N. At this point, N fully-controlled branches can be selected from the M fully-controlled branches, and the power consumption of these N fully-controlled branches can be controlled.

[0062] Optionally, the allowable operating coefficient of the fully-controlled branch can be obtained according to the ratio of the allowable operating power within its operating power range to the rated power.

[0063] In an embodiment of the present application, a power difference between the input power and the first load power is obtained. In response to the power difference, the phase-controlled branch is controlled to absorb power at the first load power within a second operating power range, and N fully-controlled branches are controlled to absorb power based on the power difference. This application can improve the flexibility of power distribution control, maintain high power quality and conversion efficiency within a wide power range, avoid waste of resources, and achieve flexible power distribution of the power supply under fluctuating power input. While ensuring that the grid-side harmonics meet requirements, each power supply is operated within the optimal power range as much as possible.

[0064] In some implementations, in response to the power difference being less than the minimum second operating power in the second operating power range, indicating that the current power difference is insufficient to support the minimum power load of the fully-controlled branch, the phase-controlled branch is controlled to absorb power with the first load power, and the external energy storage or load is controlled to absorb the remaining power in the input power except the first load power.

[0065] In some implementations, in response to the power difference being less than the minimum second operating power in the second operating power range, indicating that the current power difference is insufficient to support the minimum power load of the fully controlled branch, a power adjustment instruction may be sent to the power station, the power adjustment instruction being used to instruct the power station to adjust the input power. Optionally, the power adjustment instruction includes the power value to be adjusted. For example, if the power difference is P c , the minimum power load is P min , the power value that needs to be adjusted at this time is P c -P min After receiving the power adjustment instruction, the power station adjusts the power value P in the power adjustment instruction. c -P min , adjust the power output of the AC input power line, that is, increase the input power of the combined electrolysis hydrogen power supply by P c -P min , so that the power difference after the phase-controlled branch absorbs the input power meets the minimum second operating power in the second operating power range.

[0066] In some implementations, in response to the power difference being greater than the maximum second operating power in the second operating power range, indicating that the current maximum power load of the fully-controlled branch is insufficient to support the absorption of the power difference, the phase-controlled branch is controlled to absorb power at the first load power, the M fully-controlled branches are controlled to absorb power at a preset third load power (i.e., all fully-controlled branches operate at maximum power), and the external energy storage or load is controlled to absorb the remaining power in the input power except the first load power and the second load power.

[0067] In some implementations, in response to the power difference being greater than the maximum second operating power in the second operating power range, indicating that the current power difference exceeds the maximum power load of the fully controlled branch, a power adjustment instruction may be sent to the power station. Optionally, the power adjustment instruction includes the power value to be adjusted. For example, if the power difference is P c , the maximum power load is P max , the power value that needs to be adjusted at this time is P max -P c After receiving the power adjustment instruction, the power station adjusts the power value P in the power adjustment instruction. max -P c, adjust the power output of the AC input power line, that is, reduce the input power of the combined electrolysis hydrogen power supply to P max -P c , so that the power difference after the phase-controlled branch absorbs the input power meets the maximum second operating power in the second operating power range.

[0068] Figure 4 This is a flow chart of a method for controlling the distribution of a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 4 As shown, the method includes:

[0069] S401, obtaining a first power-harmonic curve of a phase-controlled branch and a second power-harmonic curve of a fully-controlled branch.

[0070] S402, determining a maximum first operating power and a minimum first operating power of the phase-controlled branch according to the first power-harmonic curve, and determining a maximum second operating power and a minimum second operating power of the fully-controlled branch according to the second power-harmonic curve.

[0071] Optionally, the maximum power value in the first power-harmonic curve is the maximum first operating power, and the minimum power value in the first power-harmonic curve is the minimum first operating power.

[0072] Optionally, the maximum power value in the second power-harmonic curve is the maximum second operating power, and the minimum power value in the second power-harmonic curve is the minimum second operating power.

[0073] S403, determining a first operating power range of the phase-controlled branch according to the maximum first operating power and the minimum first operating power of the phase-controlled branch, and determining a second operating power range of the fully-controlled branch according to the maximum second operating power and the minimum second operating power of the fully-controlled branch.

[0074] Optionally, if the maximum first operating power of the phase-controlled branch is P 1,max , the minimum first working power of the phase-controlled branch is P 1,min , determine the first operating power range of the phase-controlled branch as [P 1,min ,P 1,max ].

[0075] Optionally, if the maximum second operating power of the fully controlled branch is P 2,max , the minimum second working power of the fully controlled branch is P 2,min , determine the second operating power range of the fully controlled branch as [P 2,min ,P 2,max ].

[0076] This application can improve the flexibility of power distribution control, maintain high power quality and conversion efficiency within a wider power range, avoid wasting resources, and realize flexible power distribution of the power supply part under fluctuating power input. On the premise of ensuring that the grid-side harmonics meet the requirements, each power supply can work as much as possible within the optimal power range.

[0077] Figure 5 This is a flow chart of a method for controlling the distribution of a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 5 As shown, in the embodiment of the present application, data is first obtained, that is, the first operating power range of the phase-controlled branch in the combined electrolysis hydrogen production power supply, the second operating power range of the M fully controlled branches in the combined electrolysis hydrogen production power supply, and the input power of the combined electrolysis hydrogen production power supply are obtained, the phase-controlled branch and any fully controlled branch are connected in parallel, and in response to the input power P in In the first operating power range [P 1,min ,P 1,max ], that is, P in ∈[P 1,min ,P 1,max ], control the phase-controlled branch to absorb the input power; in response to the input power being outside the first operating power range, determine the input power P in Is it less than the minimum first operating power P in the first operating power range? 1,min , if the input power is less than the minimum first working power within the first working power range, that is, P in <P 1,min , control the external energy storage or load to absorb the input power. Otherwise, it means that the input power is greater than the maximum first working power within the first working power range, and obtain the power difference P between the input power and the first load power c ; In response to the power difference in the second operating power range P c ∈[P 2,min ,P 2,max ], control the phase-controlled branch and N fully controlled branches to jointly absorb the input power, that is, the phase-controlled branch absorbs the power with the first load power, and controls the N fully controlled branches to absorb the power according to the power difference. c <P 2,min , control external energy storage or load to absorb input power, otherwise it means P c >P 2,max The phase-controlled branch, M fully-controlled branches, and external energy storage / load are controlled to jointly absorb the input power. That is, the phase-controlled branch absorbs power at the first load power, and the M fully-controlled branches absorb power at the third load power. The portion of the input power other than the first and third load powers is transmitted to the external energy storage / load for absorption. The third load power is the maximum load power of the M fully-controlled branches.

[0078] Based on the same application concept, an embodiment of the present application also provides a distribution control device for a combined electrolysis hydrogen production power supply.

[0079] Figure 6 This is a structural block diagram of a distribution control device for a combined electrolysis hydrogen production power supply according to an embodiment of the present application. Figure 6 As shown, the distribution control device 600 of the combined electrolysis hydrogen production power supply of the embodiment of the present application includes:

[0080] An acquisition module 610 is configured to acquire a first operating power range of a phase-controlled branch in a combined electrolytic hydrogen production power supply, a second operating power range of M fully-controlled branches in the combined electrolytic hydrogen production power supply, and an input power of the combined electrolytic hydrogen production power supply, wherein the phase-controlled branch and any fully-controlled branch are connected in parallel, and M is a positive integer;

[0081] A first control module 620 is configured to control the phase-controlled branch to absorb the input power in response to the input power being within a first operating power range;

[0082] The second control module 630 is used to obtain the first load power of the phase-controlled branch in response to the input power being greater than the maximum first working power within the first working power range, and control the phase-controlled branch and N fully-controlled branches to jointly absorb the input power according to the first load power, the input power and the second working power range, where N takes a value from 1 to M.

[0083] In some implementations, the second control module 630 is further configured to:

[0084] Obtaining a power difference between the input power and the first load power;

[0085] In response to the power difference being within the second operating power range, the phase-controlled branch is controlled to absorb power at the first load power, and the N fully-controlled branches are controlled to absorb power according to the power difference.

[0086] In some implementations, the second control module 630 is further configured to:

[0087] Obtain the rated power and maximum operating coefficient of any fully-controlled branch among the M fully-controlled branches;

[0088] For any fully-controlled branch among the M fully-controlled branches, obtain the second load power of the fully-controlled branch according to the product of the rated power of the fully-controlled branch and the maximum operating coefficient;

[0089] According to the second load power of any fully-controllable branch, N fully-controllable branches are controlled from the M fully-controllable branches to absorb power.

[0090] In some implementations, the second control module 630 is further configured to:

[0091] In response to the power difference being less than the minimum second operating power in the second operating power range, the phase-controlled branch is controlled to absorb power at the first load power, and the external energy storage or load is controlled to absorb the remaining power in the input power except the first load power. Or

[0092] In response to the power difference being less than the minimum second operating power in the second operating power range, a power adjustment instruction is sent to the power station, where the power adjustment instruction is used to instruct the power station to adjust the input power.

[0093] In some implementations, the second control module 630 is further configured to:

[0094] In response to the power difference being greater than the maximum second operating power in the second operating power range, the phase-controlled branch is controlled to absorb power at the first load power, the M fully-controlled branches are controlled to absorb power at a preset third load power, and the external energy storage or load is controlled to absorb the remaining power in the input power except the first load power and the second load power. Or

[0095] In response to the power difference being greater than a maximum second operating power in the second operating power range, a power adjustment instruction is sent to the power station.

[0096] In some implementations, the second control module 630 is further configured to:

[0097] In response to the input power being less than the minimum first operating power within the first operating power range, the external energy storage or the load absorption power is controlled.

[0098] In some implementations, the acquisition module 610 is further configured to:

[0099] Obtain the first power-harmonic curve of the phase-controlled branch and the second power-harmonic curve of the fully-controlled branch;

[0100] Determine the maximum first operating power and the minimum first operating power of the phase-controlled branch according to the first power-harmonic curve, and determine the maximum second operating power and the minimum second operating power of the fully-controlled branch according to the second power-harmonic curve;

[0101] The first operating power range of the phase-controlled branch is determined according to the maximum first operating power and the minimum first operating power of the phase-controlled branch, and the second operating power range of the fully-controlled branch is determined according to the maximum second operating power and the minimum second operating power of the fully-controlled branch.

[0102] This application can improve the flexibility of power distribution control, maintain high power quality and conversion efficiency within a wider power range, avoid wasting resources, and realize flexible power distribution of the power supply part under fluctuating power input. On the premise of ensuring that the grid-side harmonics meet the requirements, each power supply can work as much as possible within the optimal power range.

[0103] Based on the same application concept, an embodiment of the present application also provides an electronic device.

[0104] 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 aforementioned distribution control method for the combined electrolysis hydrogen production power supply is implemented.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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 distribution control method of the combined electrolysis hydrogen production power supply in the above embodiment.

[0110] Based on the same application concept, an embodiment of the present application further provides a computer program product, including a computer program, which, when executed by a processor, implements the distribution control method of the combined electrolysis hydrogen production power supply in the above embodiment.

[0111] 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.

[0112] 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.

[0113] 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.

[0114] 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 controlling the distribution of a combined electrolytic hydrogen production power supply, characterized in that: include: Obtaining a first operating power range of a phase-controlled branch in a combined electrolysis hydrogen production power supply, a second operating power range of M fully-controlled branches in the combined electrolysis hydrogen production power supply, and an input power of the combined electrolysis hydrogen production power supply, wherein the phase-controlled branch and any fully-controlled branch are connected in parallel, and M is a positive integer; In response to the input power being within the first operating power range, controlling the phase-controlled branch to absorb the input power; In response to the input power being greater than a maximum first operating power within the first operating power range, obtaining a first load power of the phase-controlled branch, and obtaining a power difference between the input power and the first load power; In response to the power difference being within the second operating power range, controlling the phase-controlled branch to absorb power at the first load power, obtaining the rated power and maximum operating coefficient of any one of the M fully-controlled branches; for any one of the M fully-controlled branches, obtaining the second load power of the fully-controlled branch based on the product of the rated power and the maximum operating coefficient of the fully-controlled branch; and controlling N fully-controlled branches from the M fully-controlled branches to absorb power based on the second load power of any one of the fully-controlled branches, where N is a value ranging from 1 to M; The process of acquiring the first operating power range and the second operating power range includes: Obtaining a first power-harmonic curve of the phase-controlled branch and a second power-harmonic curve of the fully-controlled branch; Determine a maximum first operating power and a minimum first operating power of the phase-controlled branch according to the first power-harmonic curve, and determine a maximum second operating power and a minimum second operating power of the fully-controlled branch according to the second power-harmonic curve; The first operating power range of the phase-controlled branch is determined according to the maximum first operating power and the minimum first operating power of the phase-controlled branch, and the second operating power range of the fully-controlled branch is determined according to the maximum second operating power and the minimum second operating power of the fully-controlled branch.

2. The method according to claim 1, characterized in that Also includes: In response to the power difference being less than a minimum second operating power in the second operating power range, controlling the phase-controlled branch to absorb power at the first load power, and controlling an external energy storage or load to absorb the remaining power of the input power except the first load power; or In response to the power difference being less than a minimum second operating power in the second operating power range, a power adjustment instruction is sent to the power station, where the power adjustment instruction is used to instruct the power station to adjust input power.

3. The method according to claim 1, characterized in that Also includes: In response to the power difference being greater than the maximum second operating power in the second operating power range, controlling the phase-controlled branch to absorb power at the first load power, controlling the M fully-controlled branches to absorb power at a preset third load power, and controlling the external energy storage or load to absorb the remaining power of the input power except the first load power and the second load power; or In response to the power difference being greater than a maximum second operating power in the second operating power range, a power adjustment instruction is sent to the power station.

4. The method according to claim 1, wherein Also includes: In response to the input power being less than a minimum first operating power within the first operating power range, external energy storage or load absorption power is controlled.

5. A distribution control device for a combined electrolytic hydrogen production power supply, characterized in that: include: an acquisition module, configured to acquire a first operating power range of a phase-controlled branch in a combined electrolytic hydrogen production power supply, a second operating power range of M fully-controlled branches in the combined electrolytic hydrogen production power supply, and an input power of the combined electrolytic hydrogen production power supply, wherein the phase-controlled branch and any fully-controlled branch are connected in parallel, and M is a positive integer; a first control module, configured to control the phase-controlled branch to absorb the input power in response to the input power being within the first operating power range; a second control module, configured to, in response to the input power being greater than a maximum first operating power within the first operating power range, obtain a first load power of the phase-controlled branch and obtain a power difference between the input power and the first load power; in response to the power difference being within the second operating power range, control the phase-controlled branch to absorb power at the first load power, obtain a rated power and a maximum operating coefficient of any one of the M fully-controlled branches; obtain, for any one of the M fully-controlled branches, a second load power of the fully-controlled branch based on the product of the rated power and the maximum operating coefficient of the fully-controlled branch; and control N fully-controlled branches from the M fully-controlled branches to absorb power based on the second load power of any one of the fully-controlled branches, where N is a value ranging from 1 to M; The process of acquiring the first operating power range and the second operating power range includes: Obtaining a first power-harmonic curve of the phase-controlled branch and a second power-harmonic curve of the fully-controlled branch; Determine a maximum first operating power and a minimum first operating power of the phase-controlled branch according to the first power-harmonic curve, and determine a maximum second operating power and a minimum second operating power of the fully-controlled branch according to the second power-harmonic curve; The first operating power range of the phase-controlled branch is determined according to the maximum first operating power and the minimum first operating power of the phase-controlled branch, and the second operating power range of the fully-controlled branch is determined according to the maximum second operating power and the minimum second operating power of the fully-controlled branch.

6. 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.

7. A non-transitory computer-readable storage medium storing computer instructions, wherein: The computer instructions are used to cause the computer to execute the method according to any one of claims 1-4.

Images