Virtual hydrogen power plant control method and related device

Abstract

The invention discloses a virtual hydrogen power plant control method and a related device, and the method comprises the steps: building a virtual hydrogen power plant through polymerizing a plurality of electrolytic hydrogen production units, and obtaining a first resource value used for representing the resource value of electric energy and a second resource value used for representing the resource value of hydrogen energy in a control process; the operation state of the virtual hydrogen power plant is not depicted only by a single electric energy dimension any more, but the resource value difference between the electric energy side and hydrogen energy can be reflected at the same time. The first hydrogen production power adjustment instruction is generated based on the comparison relationship between the first resource value and the second resource value, and the hydrogen production power of the virtual hydrogen power plant is adjusted, so that the adjustment direction of the hydrogen production power can be adaptively adjusted along with the resource value change of different resources in the virtual hydrogen power plant, the scheduling flexibility is improved, and the scheduling efficiency is improved. And resource allocation is more reasonable and comprehensive. Furthermore, as the hydrogen production power regulation instruction is used for scheduling in the direction with higher resource value in the hydrogen energy and the electric energy, greater comprehensive benefits can be realized.

Description

Technical Field

[0001] This invention relates to the field of new energy technology, and in particular to a control method and related apparatus for a virtual hydrogen power plant. Background Technology

[0002] With technological advancements, high-proportion renewable energy sources, such as wind and solar power, are being rapidly integrated into the power grid. However, the inherent intermittency and volatility of renewable energy pose significant challenges to the real-time power balance and stable operation of the power grid, especially at the industrial park level, where "wind and solar curtailment" occurs frequently, highlighting the growing problem of clean energy consumption. To smooth out fluctuations in renewable energy output and enhance the grid's regulation capabilities, Virtual Power Plant (VPP) technology has emerged.

[0003] In related technologies, the aggregated resources of virtual power plants are mainly concentrated in pure electric energy resources, and they participate in grid dispatch and electricity market transactions.

[0004] However, the method of aggregating and dispatching pure electric energy can usually only reflect the electricity consumption or supply characteristics of virtual power plants in the power system, which limits the adjustment flexibility of virtual power plants in scenarios with a high proportion of renewable energy access, and the resource allocation is relatively simple. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a control method and related apparatus for a virtual hydrogen power plant, which improves the flexibility of virtual power plant operation and enhances the rationality of resource allocation.

[0006] Based on this, the following technical solution is disclosed in this application:

[0007] In a first aspect, embodiments of this application provide a control method for a virtual hydrogen power plant, the method comprising:

[0008] A virtual hydrogen power plant is obtained by aggregating multiple electrolysis hydrogen production units, wherein each electrolysis hydrogen production unit includes an electrolysis hydrogen production system and supporting hydrogen storage facilities.

[0009] Obtain the current first resource value and the current second resource value, where the first resource value is used to characterize the resource value of electrical energy in the virtual hydrogen power plant, and the second resource value is used to characterize the resource value of hydrogen energy produced by the virtual hydrogen power plant;

[0010] Based on the comparison relationship between the first resource value and the second resource value, a first hydrogen production power adjustment command is generated, which is used to adjust the hydrogen production power of the virtual hydrogen power plant.

[0011] According to the first hydrogen production power adjustment command, the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant is adjusted to increase the resource value of the target resource, wherein the target resource is the resource corresponding to the largest resource value among the first resource value and the second resource value.

[0012] Optionally, generating a first hydrogen production power adjustment command based on the comparison between the first resource value and the second resource value includes:

[0013] If the first resource value is greater than the second resource value, a first hydrogen production power adjustment command to reduce hydrogen production power is generated.

[0014] If the first resource value is less than the second resource value, a first hydrogen production power adjustment command to increase hydrogen production power is generated.

[0015] Optionally, obtaining the current first resource value and the current second resource value includes:

[0016] Obtain real-time electricity price, real-time hydrogen price, current unit hydrogen production cost, and current hydrogen production efficiency of the virtual hydrogen power plant;

[0017] The equivalent hydrogen price signal is determined based on the real-time hydrogen price signal, the current unit hydrogen production cost, and the current hydrogen production efficiency of the virtual hydrogen power plant.

[0018] The real-time electricity price is determined as the first resource value, and the equivalent hydrogen price signal is determined as the second resource value.

[0019] Optionally, the method further includes:

[0020] In response to the dispatch command for obtaining the peak load period of the power grid, the minimum hydrogen production power of each of the electrolysis hydrogen production units is obtained;

[0021] Based on the minimum hydrogen production power of each of the electrolytic hydrogen production units, a second hydrogen production power adjustment command is generated for each of the electrolytic hydrogen production units. The second hydrogen production power adjustment command is used to indicate that the hydrogen production power reaches the minimum hydrogen production power.

[0022] According to the second hydrogen production power adjustment command, the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant is adjusted respectively.

[0023] Optionally, the minimum hydrogen production power is determined by the following method:

[0024] Obtain the initial minimum hydrogen production power, minimum baseline hydrogen storage mass, current hydrogen storage mass, and scheduling duration for each of the multiple electrolytic hydrogen production units;

[0025] If the current hydrogen storage mass is greater than the minimum baseline hydrogen storage mass, then the hydrogen storage mass degradation rate is determined based on the mass difference between the current hydrogen storage mass and the minimum baseline hydrogen storage mass and the scheduling duration.

[0026] The initial minimum hydrogen production power corresponding to each of the plurality of electrolytic hydrogen production units is adjusted according to the hydrogen storage quality degradation rate.

[0027] Optionally, the target electrolytic hydrogen production unit is one of multiple electrolytic hydrogen production units, and the minimum hydrogen production power of the target electrolytic hydrogen production unit is determined in the following manner:

[0028] Obtain the static minimum hydrogen production power of the target electrolytic hydrogen production unit and the electrochemical parameters of the target electrolytic hydrogen production unit, including the electrolyzer temperature, electrolyzer pressure and catalyst state;

[0029] Based on the electrochemical parameters of the target electrolytic hydrogen production unit, the dynamic power compensation amount of the target electrolytic hydrogen production unit is obtained by processing it through a digital twin model. The digital twin model is obtained by training through electrochemical parameter samples and dynamic power compensation amount samples.

[0030] The minimum hydrogen production power of the target electrolytic hydrogen production unit is determined based on the static minimum hydrogen production power of the target electrolytic hydrogen production unit and the dynamic power compensation amount of the target electrolytic hydrogen production unit.

[0031] Secondly, embodiments of this application provide a control device for a virtual hydrogen power plant, the device comprising:

[0032] A polymerization unit is used to polymerize multiple electrolytic hydrogen production units to obtain a virtual hydrogen power plant. The electrolytic hydrogen production unit includes an electrolytic hydrogen production system and supporting hydrogen storage facilities.

[0033] The acquisition unit is used to acquire the current first resource value and the current second resource value, wherein the first resource value is used to characterize the resource value of electrical energy in the virtual hydrogen power plant, and the second resource value is used to characterize the resource value of hydrogen energy produced by the virtual hydrogen power plant.

[0034] The generation unit is used to generate a first hydrogen production power adjustment instruction based on the comparison relationship between the first resource value and the second resource value. The first hydrogen production power adjustment instruction is used to adjust the hydrogen production power of the virtual hydrogen power plant.

[0035] The adjustment unit is used to adjust the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant according to the first hydrogen production power adjustment command, so as to increase the resource value of the target resource, wherein the target resource is the resource corresponding to the largest resource value among the first resource value and the second resource value.

[0036] Thirdly, this application provides a virtual hydrogen power plant, which includes a processor, a memory, and multiple electrolysis hydrogen production units:

[0037] The memory is used to store computer programs and to transfer the computer programs to the processor;

[0038] The processor has a corresponding communication link with each of the plurality of electrolytic hydrogen production units, and the processor is used to execute the method described in the first aspect above according to the computer program.

[0039] Fourthly, embodiments of this application provide a computer-readable storage medium for storing a computer program for performing the method described in the first aspect above.

[0040] Fifthly, embodiments of this application provide a computer program product including a computer program, which, when run on a computer device, causes the computer device to perform the method described in the first aspect above.

[0041] As can be seen from the above technical solutions, this application has at least the following beneficial effects:

[0042] By aggregating multiple electrolysis hydrogen production units to construct a virtual hydrogen power plant, and acquiring a first resource value (representing the resource value of electricity) and a second resource value (representing the resource value of hydrogen) during the control process, the operation of the virtual hydrogen power plant is no longer characterized solely by the single dimension of electricity, but can simultaneously reflect the resource value differences between electricity and hydrogen. Based on this, a first hydrogen production power adjustment command is generated based on the comparison relationship between the first and second resource values, and the hydrogen production power of the virtual hydrogen power plant is adjusted. This allows the adjustment direction of hydrogen production power to adaptively adjust according to changes in the resource value of different resources within the virtual hydrogen power plant. Compared to the adjustment method resulting from aggregation and scheduling based solely on electricity, this improves scheduling flexibility and makes resource allocation more rational and comprehensive. Furthermore, since the hydrogen production power adjustment command is used to increase the resource value of the target resource—that is, to schedule resources towards those with higher resource value between hydrogen and electricity—maximum comprehensive benefits can be achieved. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 A schematic flowchart illustrating a control method for a virtual hydrogen power plant provided in an embodiment of this application;

[0045] Figure 2 A schematic diagram of the structure of a control device for a virtual hydrogen power plant provided in an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of a virtual hydrogen power plant provided in an embodiment of this application. Detailed Implementation

[0047] Embodiments of this application will now be described in more detail with reference to the accompanying drawings. While some embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this application. It should be understood that the drawings and embodiments of this application are for illustrative purposes only and are not intended to limit the scope of protection of this application.

[0048] As mentioned above, the method of aggregating and dispatching pure electric energy can usually only reflect the electricity consumption or supply characteristics of virtual power plants in the power system, which limits the adjustment flexibility of virtual power plants in scenarios with a high proportion of renewable energy access, and the resource allocation is relatively simple.

[0049] In scenarios with a high proportion of renewable energy integration, the output of new energy sources is characterized by strong volatility and frequent changes, such as wind power and photovoltaic power generation. Dispatch methods based solely on electricity often rely on fixed rules or preset strategies for power adjustment, making it difficult to match the dynamic changes in renewable energy output in a timely manner. This limits the regulation response capability of virtual power plants in actual operation and results in insufficient regulation flexibility.

[0050] Based on this, the embodiments of the present application provide a control method and related device for a virtual hydrogen power plant. By aggregating multiple electrolytic hydrogen production units to construct a virtual hydrogen power plant, and respectively obtaining a first resource value for characterizing the resource value of electric energy and a second resource value for characterizing the resource value of hydrogen energy during the control process, the operating state of the virtual hydrogen power plant is no longer characterized only by a single dimension of electric energy, but can simultaneously reflect the resource value differences between the electric energy side and hydrogen energy. On this basis, a first hydrogen production power adjustment instruction is generated based on the comparison relationship between the first resource value and the second resource value, and the hydrogen production power of the virtual hydrogen power plant is adjusted, so that the adjustment direction of the hydrogen production power can be adaptively adjusted according to the change of the resource value of different resources in the virtual hydrogen power plant. Compared with the adjustment method caused by aggregating and dispatching with pure electric energy, the flexibility of dispatching is improved, and the resource allocation is more reasonable and comprehensive. Further, since the hydrogen production power adjustment instruction is used to increase the resource value of the target resource, that is, the dispatching is carried out in the direction with higher resource value between hydrogen energy and electric energy, greater comprehensive benefits can be achieved.

[0051] The control method of the virtual hydrogen power plant provided by the present application can be applied to computer devices with control capabilities, such as terminal devices and servers. Among them, the terminal device can specifically be a desktop computer, a laptop computer, a mobile phone, a tablet computer, etc.; the server can be an independent physical server, or a server cluster or distributed system composed of multiple physical servers, etc. The terminal device and the server can be directly or indirectly connected through wired or wireless communication methods, and the present application does not limit this.

[0052] See Figure 1 , which is a schematic flowchart of the control method of the virtual hydrogen power plant provided by the embodiments of the present application. For the convenience of description, the following embodiments will be introduced by taking the server as the execution subject of the control method of the virtual hydrogen power plant as an example. As Figure 1 shown, the control method of the virtual hydrogen power plant includes S101 - S104.

[0053] S101: Aggregate multiple electrolytic hydrogen production units to obtain a virtual hydrogen power plant.

[0054] The virtual hydrogen power plant is a functional unit capable of converting electric energy into hydrogen energy through electrolysis, and at least includes an electrolytic hydrogen production system for performing electrolysis reactions and a hydrogen storage facility配套 with the electrolytic hydrogen production system. The electrolytic hydrogen production unit consumes electric energy and generates hydrogen during operation.

[0055] An electrolytic hydrogen production system is a device system used to perform an electrolytic reaction and achieve hydrogen production by water splitting. It may include an electrolyzer, a power module, and related control components. The electrolytic hydrogen production system can operate within a certain power range, and its hydrogen production power can be adjusted according to external control commands. The supporting hydrogen storage facility is a facility connected to the electrolytic hydrogen production system to store the generated hydrogen and to buffer the hydrogen produced during the hydrogen production process.

[0056] A virtual hydrogen power plant is a logical entity formed by unifying and coordinating the management of multiple dispersed hydrogen electrolysis units through information collection and control. Physically, a virtual hydrogen power plant does not require the centralized deployment of each hydrogen electrolysis unit; instead, it treats them as a single entity for operation and management at the control level. For example, multiple hydrogen electrolysis units distributed within an industrial park, each equipped with its own hydrogen storage tank, can be managed as a single virtual hydrogen power plant by connecting to a central control system via a communication network.

[0057] S102: Get the current first resource value and the current second resource value.

[0058] The first resource value is used to characterize the resource value of electrical energy in the virtual hydrogen power plant, and the second resource value is used to characterize the resource value of hydrogen energy produced by the virtual hydrogen power plant.

[0059] S103: Generate a first hydrogen production power adjustment command based on the comparison relationship between the first resource value and the second resource value.

[0060] The comparison relationship is the relative relationship between the first resource value and the second resource value at the current operating moment, which is used to reflect the difference in resource value of different types of resources in the virtual hydrogen power plant at the same moment.

[0061] The first hydrogen production power adjustment command is used to adjust the hydrogen production power of the virtual hydrogen power plant.

[0062] In one possible implementation, the first hydrogen production power adjustment command can be used to increase the resource value of a target resource. The target resource is the resource corresponding to the larger of the first and second resource values.

[0063] Based on the comparison between the first and second resource values, the target resources that require priority in the virtual hydrogen power plant at the current moment are determined, and a first hydrogen production power adjustment command is generated. The difference in resource value is converted into adjustment commands for executing resource scheduling, enabling the hydrogen production power of the virtual hydrogen power plant to be dynamically adjusted according to changes in the value of different resources.

[0064] In one possible implementation, the target resource can be determined based on a comparison relationship, and a first hydrogen production power adjustment command can be generated to adjust the hydrogen production power of the virtual hydrogen power plant, so that the adjustment direction of the hydrogen production power corresponds to increasing the resource value of the target resource.

[0065] For example, if the first resource value is greater than the second resource value, a first hydrogen production power adjustment command is generated to reduce the hydrogen production power.

[0066] For example, if the equivalent up-adjustment capacity is used to characterize the electrical energy up-adjustment value equivalent to reducing hydrogen production power, then the equivalent up-adjustment capacity can be characterized in the following way:

[0067]

[0068] in, Let be the equivalent up-adjustment capacity at time t. The baseline hydrogen production capacity before reducing the hydrogen production capacity of the virtual hydrogen power plant. Let t be the hydrogen production capacity of the virtual hydrogen power plant, that is, the hydrogen production capacity after reducing the hydrogen production capacity.

[0069] If the first resource value is less than the second resource value, a first hydrogen production power adjustment command to increase hydrogen production power is generated.

[0070] Therefore, the direction of hydrogen production capacity adjustment is directly determined based on the comparative relationship of resource value, so that resource scheduling is consistent with the changes in resource value, thereby enhancing the response consistency and control reliability of the virtual hydrogen power plant in complex operating scenarios.

[0071] In another possible implementation, the first hydrogen production power adjustment command may include the direction or magnitude of the hydrogen production power adjustment, used to instruct the virtual hydrogen power plant to adjust the hydrogen production power accordingly within the current operating cycle. It should be noted that the specific command format can be set according to the system implementation method, and this application embodiment does not limit this.

[0072] S104: According to the first hydrogen production power adjustment command, adjust the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant to increase the resource value of the target resource.

[0073] The first hydrogen production power adjustment command can be one or more. For example, the first hydrogen production power adjustment command can be a command to uniformly adjust the hydrogen production power corresponding to multiple electrolytic hydrogen production units. Or, multiple electrolytic hydrogen production units can correspond to multiple first hydrogen production power adjustment commands, which can be used to make targeted adjustments to at least one electrolytic hydrogen production unit within a small range.

[0074] As can be seen from the above technical solution, by aggregating multiple electrolysis hydrogen production units to construct a virtual hydrogen power plant, and acquiring a first resource value (representing the resource value of electrical energy) and a second resource value (representing the resource value of hydrogen energy) during the control process, the operating state of the virtual hydrogen power plant is no longer characterized solely by a single electrical energy dimension, but can simultaneously reflect the resource value differences between electrical energy and hydrogen energy. Based on this, a first hydrogen production power adjustment command is generated based on the comparison relationship between the first and second resource values, and the hydrogen production power of the virtual hydrogen power plant is adjusted. This allows the adjustment direction of the hydrogen production power to adaptively adjust according to the changes in the resource value of different resources within the virtual hydrogen power plant. Compared to the adjustment method resulting from aggregation and scheduling purely based on electrical energy, this improves the flexibility of scheduling and makes resource allocation more rational and comprehensive. Furthermore, since the hydrogen production power adjustment command is used to increase the resource value of the target resource, i.e., scheduling towards the direction with higher resource value between hydrogen and electrical energy, greater comprehensive benefits can be achieved.

[0075] In one possible implementation, the current first resource value and the current second resource value can be determined in the following way, as detailed in A1-A3:

[0076] A1: Obtain real-time electricity price, real-time hydrogen price, current unit hydrogen production cost, and current hydrogen production efficiency of virtual hydrogen power plants.

[0077] The real-time electricity price is the electricity price signal obtained through the electricity market at the current moment, used to reflect the unit resource value of electricity at the current moment. The real-time electricity price is the hydrogen price signal obtained through the hydrogen energy market at the current moment, used to reflect the unit resource value of hydrogen energy at the current moment.

[0078] The unit cost of hydrogen production is the cost of producing a unit of hydrogen (such as operating costs). The hydrogen production efficiency of a virtual hydrogen power plant is used to characterize the rate at which electrical energy is converted into hydrogen energy during the electrolysis process. Both the unit cost of hydrogen production and the hydrogen production efficiency can be updated in real time based on the operating parameters of the electrolysis unit.

[0079] A2: Determine the equivalent hydrogen price signal based on the real-time hydrogen price signal, the current unit hydrogen production cost, and the current hydrogen production efficiency of the virtual hydrogen power plant.

[0080] A3: Determine the real-time electricity price as the first resource value and the equivalent hydrogen price signal as the second resource value.

[0081] It should be noted that since real-time electricity prices and real-time hydrogen prices correspond to different types of energy carriers, they are not directly comparable in terms of numerical value. Directly comparing real-time electricity prices and real-time hydrogen prices makes it difficult to accurately reflect the resource value of electricity and hydrogen energy respectively under the current operating conditions of a virtual hydrogen power plant.

[0082] Based on this, the resource value of electricity and hydrogen energy can be standardized and characterized separately. The real-time electricity price can be directly used as the first resource value to characterize the value of electricity, while the equivalent hydrogen price signal, determined by combining the real-time hydrogen price, unit hydrogen production cost, and hydrogen production efficiency, can be used as the second resource value to characterize the value of hydrogen energy. This approach makes the first and second resource values ​​comparable under a unified value characterization dimension.

[0083] As one implementation method, the process of A2 can be represented by the following formula:

[0084]

[0085] in, Let be the equivalent hydrogen valence signal at time t. The real-time hydrogen valence signal at time t. Based on the current unit cost of hydrogen production, Let t be the hydrogen production efficiency of the virtual hydrogen power plant.

[0086] Therefore, by directly determining the real-time electricity price as the first resource value and the equivalent hydrogen price signal as the second resource value, a standardized representation of the value of electricity and hydrogen resources is achieved. This allows for comparison of the two types of resource values ​​under a unified value representation dimension, thereby improving the accuracy and consistency of resource value judgment.

[0087] When the power system enters peak load periods, the virtual hydrogen power plant not only needs to maintain its own hydrogen production operation, but also needs to have the ability to quickly release regulation capacity while meeting equipment operating constraints. For this scenario, embodiments of this application provide a regulation method, as detailed in B1-B3:

[0088] B1: In response to dispatch instructions during peak grid load periods, obtain the minimum hydrogen production power of each electrolysis hydrogen production unit.

[0089] In response to dispatch instructions received during peak load periods from the power grid, the system determines the peak load period regulation mode required for the current virtual hydrogen power plant. By obtaining the minimum hydrogen production power corresponding to each electrolysis hydrogen production unit, the system clarifies the minimum allowable operating power boundary for each hydrogen production unit during the current time period.

[0090] Minimum hydrogen production power is used to characterize the lowest power level that an electrolytic hydrogen production unit needs to maintain under conditions of normal operation and basic hydrogen production. Minimum hydrogen production power may vary depending on the equipment characteristics or operating conditions of different electrolytic hydrogen production units.

[0091] B2: Based on the minimum hydrogen production power of each electrolysis hydrogen production unit, generate a second hydrogen production power adjustment command corresponding to each electrolysis hydrogen production unit.

[0092] The second hydrogen production power adjustment command is used to indicate that the hydrogen production power has reached the minimum hydrogen production power.

[0093] Specifically, by generating corresponding second hydrogen production power adjustment commands for different electrolysis hydrogen production units, the power adjustment process of the virtual hydrogen power plant during peak load periods can quickly reach the lower limit constraint, thereby achieving refined control of peak load adjustment.

[0094] B3: Adjust the hydrogen production power of each of the multiple electrolysis hydrogen production units in the virtual hydrogen power plant according to the second hydrogen production power adjustment command.

[0095] In other words, the saved power can be used = Provided to the power grid as an upgraded service. The surplus power of the virtual hydrogen power plant The baseline hydrogen production capacity before reducing the hydrogen production capacity of the virtual hydrogen power plant. This represents the minimum hydrogen production capacity of the virtual hydrogen power plant (i.e., the sum of the minimum hydrogen production capacities of each electrolysis hydrogen production unit).

[0096] In one possible implementation, the overall benefit of a virtual hydrogen power plant participating in peak-shaving services during peak grid load periods can be calculated using the following formula:

[0097]

[0098] in, The overall revenue of a virtual hydrogen power plant participating in peak shaving services during peak grid load periods. Let be the surplus power of the virtual hydrogen power plant at time t. The baseline hydrogen production capacity before reducing the hydrogen production capacity of the virtual hydrogen power plant. The clearing price for ancillary services markets, i.e., the clearing price of electricity in the power market during peak load periods of the power grid. Let be the equivalent hydrogen valence signal at time t. The scheduling duration is the time required to schedule the power output of the electrolysis hydrogen production unit.

[0099] Therefore, by introducing a minimum hydrogen production power during peak load periods of the power grid, and responding to the dispatching instructions during peak load periods of the power grid, a second hydrogen production power adjustment instruction is generated, enabling the virtual hydrogen power plant to flexibly adjust the hydrogen production power of each electrolysis hydrogen production unit to the minimum hydrogen production power during peak load periods without stopping hydrogen production operations, thus providing more power output during peak load periods of the power grid.

[0100] Furthermore, the minimum hydrogen production power was determined as follows, as detailed in C1-C2:

[0101] C1: Obtain the initial minimum hydrogen production power, minimum baseline hydrogen storage mass, current hydrogen storage mass, and scheduling duration for each of the multiple electrolysis hydrogen production units.

[0102] Among them, the initial minimum hydrogen production power is the minimum hydrogen production power that has not yet been adjusted based on the hydrogen storage quality, the minimum benchmark hydrogen storage quality is the hydrogen storage quality of the virtual hydrogen power plant to meet the minimum hydrogen energy supply, the current hydrogen storage quality is the hydrogen storage quality of the virtual hydrogen power plant at the current moment, and the scheduling duration is the duration for scheduling the power of the electrolysis hydrogen production unit.

[0103] C2: If the current hydrogen storage mass is greater than the minimum baseline hydrogen storage mass, then the hydrogen storage mass degradation rate is determined based on the mass difference between the current hydrogen storage mass and the minimum baseline hydrogen storage mass, as well as the scheduling duration.

[0104] If the current hydrogen storage mass is greater than the minimum baseline hydrogen storage mass, it indicates that the current hydrogen storage mass can meet the minimum hydrogen supply requirements, and the hydrogen production power of some electrolysis hydrogen production units can be further reduced. Based on this, the hydrogen storage mass degradation rate can be determined according to the mass difference between the current hydrogen storage mass and the minimum baseline hydrogen storage mass, as well as the scheduling duration. The hydrogen storage mass degradation rate is used to characterize the portion of the current hydrogen storage mass that is greater than the minimum baseline hydrogen storage mass that can be converted into a reduced hydrogen production power.

[0105] C3: Adjust the initial minimum hydrogen production power corresponding to each of the multiple electrolysis hydrogen production units according to the hydrogen storage quality degradation rate.

[0106] Since the hydrogen storage mass degradation rate is used to characterize the portion of the current hydrogen storage mass that is greater than the minimum baseline hydrogen storage mass that can be converted into a degraded hydrogen production capacity, the initial minimum hydrogen production capacity can be further adjusted.

[0107] For example, the initial minimum hydrogen production power of some or all electrolysis hydrogen production units can be adjusted downwards, ensuring that the total downward adjustment is less than or equal to the rate of hydrogen storage quality degradation. Alternatively, the initial minimum hydrogen production power of some electrolysis hydrogen production units can be set to 0, ensuring that the actual hydrogen production units meet safety constraints and are therefore safer.

[0108] In one possible implementation, the adjustable power potential (i.e., the total power that can be reduced) of the virtual hydrogen power plant can be characterized by the following formula:

[0109]

[0110] in, This refers to the number of electrolytic hydrogen production units. The adjustable power potential of a virtual hydrogen power plant. Let be the baseline hydrogen production power of the i-th electrolytic hydrogen production unit at time t, where i is a positive integer. Let be the initial minimum hydrogen production power of the i-th electrolysis hydrogen production unit at time t. A conversion factor is used to convert the rate of hydrogen storage quality degradation into equivalent power. Let be the current hydrogen storage mass at time t. Let be the minimum baseline hydrogen storage mass at time t. This refers to the scheduling duration. In other words, it can be determined through the right half of the formula, i.e. Converting to equivalent power, the initial minimum hydrogen production power is further adjusted to obtain the minimum hydrogen production power.

[0111] Therefore, under the premise of meeting the minimum baseline hydrogen storage mass, the initial minimum hydrogen production power is dynamically adjusted according to the difference between the current hydrogen storage mass and the minimum baseline hydrogen storage mass, so that the minimum hydrogen production power is no longer fixed at the static lower limit at the equipment level, but can be flexibly changed with the hydrogen storage conditions, further releasing the potential for decreasing hydrogen production power.

[0112] For complex industrial loads like hydrogen production, control can be based on static, idealized technical parameters (such as the static minimum hydrogen production power, which is a preset minimum hydrogen production power). However, the electrochemical processes within an electrolytic hydrogen production unit are quite complex. To ensure the safe lifespan of the equipment and the quality of the hydrogen product, and to avoid blindly adjusting the power, which could lead to equipment damage, decreased hydrogen purity, or even safety accidents, this application proposes a method for dynamically adjusting the static minimum hydrogen production power. The target electrolytic hydrogen production unit is one of multiple electrolytic hydrogen production units. The following description uses the target electrolytic hydrogen production unit as an example, specifically referring to D1-D3:

[0113] D1: Obtain the static minimum hydrogen production power of the target electrolytic hydrogen production unit and the electrochemical parameters of the target electrolytic hydrogen production unit.

[0114] Among them, the static minimum hydrogen production power is the preset minimum hydrogen production power, and the electrochemical parameters are parameters used to characterize the operating state of the electrochemical process inside the electrolysis hydrogen production unit, including at least the electrolyzer temperature, electrolyzer pressure and catalyst state.

[0115] D2: Based on the electrochemical parameters of the target electrolytic hydrogen production unit, the dynamic power compensation amount of the target electrolytic hydrogen production unit is obtained by processing it through a digital twin model.

[0116] The digital twin model is a virtual model used to characterize the physical operating characteristics of the electrolytic hydrogen production unit. It is trained using electrochemical parameter samples and dynamic power compensation samples, enabling the estimation or prediction of the unit's operational requirements based on current electrochemical parameters. The electrochemical parameter samples serve as input data for training, while the dynamic power compensation samples are the labeled data used for training.

[0117] The electrochemical parameters of the target electrolytic hydrogen production unit can be used as input data for the digital twin model. The dynamic power compensation amount of the target electrolytic hydrogen production unit is generated through the digital twin model. The dynamic power compensation amount is used to compensate for the static minimum hydrogen production power.

[0118] D3: Determine the minimum hydrogen production power of the target electrolytic hydrogen production unit based on the static minimum hydrogen production power and the dynamic power compensation amount of the target electrolytic hydrogen production unit.

[0119] The static minimum hydrogen production power can be compensated by dynamic power compensation, so that the minimum hydrogen production power of the target electrolytic hydrogen production unit can be adapted to the electrochemical operating conditions of the target electrolytic hydrogen production unit.

[0120] Taking the target electrolytic hydrogen production unit as the i-th electrolytic hydrogen production unit as an example, D3 can be expressed by the following formula.

[0121]

[0122] in, Let be the minimum hydrogen production power of the i-th electrolysis hydrogen production unit at time t. Let be the static minimum hydrogen production power of the i-th electrolysis hydrogen production unit at time t. Let be the dynamic power compensation amount of the i-th electrolytic hydrogen production unit at time t.

[0123] This transforms the static minimum hydrogen production power from a static parameter to a dynamic parameter that varies with electrochemical operating conditions, reducing the risks of equipment damage and hydrogen purity degradation caused by blindly reducing hydrogen production power. While improving the flexibility of hydrogen production power adjustment, it also enhances the safety and stability of the electrolytic hydrogen production unit, and strengthens the control reliability of the virtual hydrogen power plant under complex scheduling scenarios.

[0124] See Figure 2 , Figure 2 A control device for a virtual hydrogen power plant provided in this application embodiment, device 200 includes:

[0125] The polymerization unit 201 is used to polymerize multiple electrolytic hydrogen production units to obtain a virtual hydrogen power plant. The electrolytic hydrogen production unit includes an electrolytic hydrogen production system and supporting hydrogen storage facilities.

[0126] The acquisition unit 202 is used to acquire the current first resource value and the current second resource value. The first resource value is used to characterize the resource value of electrical energy in the virtual hydrogen power plant, and the second resource value is used to characterize the resource value of hydrogen energy produced by the virtual hydrogen power plant.

[0127] The generation unit 203 is used to generate a first hydrogen production power adjustment instruction based on the comparison relationship between the first resource value and the second resource value. The first hydrogen production power adjustment instruction is used to adjust the hydrogen production power of the virtual hydrogen power plant.

[0128] The adjustment unit 204 is used to adjust the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant according to the first hydrogen production power adjustment command, so as to increase the resource value of the target resource, wherein the target resource is the resource corresponding to the largest resource value among the first resource value and the second resource value.

[0129] As one possible implementation, the generation unit 203 is specifically used for:

[0130] If the first resource value is greater than the second resource value, a first hydrogen production power adjustment command to reduce hydrogen production power is generated.

[0131] If the first resource value is less than the second resource value, a first hydrogen production power adjustment command to increase hydrogen production power is generated.

[0132] As one possible implementation, the acquisition unit 202 is specifically used for:

[0133] Obtain real-time electricity price, real-time hydrogen price, current unit hydrogen production cost, and current hydrogen production efficiency of the virtual hydrogen power plant;

[0134] The equivalent hydrogen price signal is determined based on the real-time hydrogen price signal, the current unit hydrogen production cost, and the current hydrogen production efficiency of the virtual hydrogen power plant.

[0135] The real-time electricity price is determined as the first resource value, and the equivalent hydrogen price signal is determined as the second resource value.

[0136] As one possible implementation, the device 200 further includes a peak scheduling unit for:

[0137] In response to the dispatch command for obtaining the peak load period of the power grid, the minimum hydrogen production power of each of the electrolysis hydrogen production units is obtained;

[0138] Based on the minimum hydrogen production power of each of the electrolytic hydrogen production units, a second hydrogen production power adjustment command is generated for each of the electrolytic hydrogen production units. The second hydrogen production power adjustment command is used to indicate that the hydrogen production power reaches the minimum hydrogen production power.

[0139] According to the second hydrogen production power adjustment command, the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant is adjusted respectively.

[0140] As one possible implementation, the minimum hydrogen production power is determined in the following way:

[0141] Obtain the initial minimum hydrogen production power, minimum baseline hydrogen storage mass, current hydrogen storage mass, and scheduling duration for each of the multiple electrolytic hydrogen production units;

[0142] If the current hydrogen storage mass is greater than the minimum baseline hydrogen storage mass, then the hydrogen storage mass degradation rate is determined based on the mass difference between the current hydrogen storage mass and the minimum baseline hydrogen storage mass and the scheduling duration.

[0143] The initial minimum hydrogen production power corresponding to each of the plurality of electrolytic hydrogen production units is adjusted according to the hydrogen storage quality degradation rate.

[0144] As one possible implementation, the target electrolytic hydrogen production unit is one of multiple electrolytic hydrogen production units, and the minimum hydrogen production power of the target electrolytic hydrogen production unit is determined by the following method:

[0145] Obtain the static minimum hydrogen production power of the target electrolytic hydrogen production unit and the electrochemical parameters of the target electrolytic hydrogen production unit, including the electrolyzer temperature, electrolyzer pressure and catalyst state;

[0146] Based on the electrochemical parameters of the target electrolytic hydrogen production unit, the dynamic power compensation amount of the target electrolytic hydrogen production unit is obtained by processing it through a digital twin model. The digital twin model is obtained by training through electrochemical parameter samples and dynamic power compensation amount samples.

[0147] The minimum hydrogen production power of the target electrolytic hydrogen production unit is determined based on the static minimum hydrogen production power of the target electrolytic hydrogen production unit and the dynamic power compensation amount of the target electrolytic hydrogen production unit.

[0148] See Figure 3 This application also provides a virtual hydrogen power plant, which includes a processor, a memory, and multiple electrolysis hydrogen production units.

[0149] The memory is used to store computer programs and to transfer the computer programs to the processor;

[0150] The processor has a corresponding communication link with each of the plurality of electrolytic hydrogen production units, and the processor is used to execute the method of the above method embodiment according to the computer program.

[0151] This application also provides a computer-readable storage medium, characterized in that the computer-readable storage medium is used to store a computer program, the computer program being used to execute the method of the above-described method embodiments.

[0152] This application also provides a computer program product including a computer program, which, when run on a computer device, causes the computer device to perform the method described in the above method embodiments.

[0153] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems or apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0154] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0155] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0156] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0157] The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein can be implemented directly by hardware, a software module executed by a processor, or a combination of both. The software module can be located in random access memory (RAM), main memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.

[0158] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A control method for a virtual hydrogen power plant, characterized in that, The method includes: A virtual hydrogen power plant is obtained by aggregating multiple electrolysis hydrogen production units, wherein each electrolysis hydrogen production unit includes an electrolysis hydrogen production system and supporting hydrogen storage facilities. Obtain the current first resource value and the current second resource value, where the first resource value is used to characterize the resource value of electrical energy in the virtual hydrogen power plant, and the second resource value is used to characterize the resource value of hydrogen energy produced by the virtual hydrogen power plant; Based on the comparison relationship between the first resource value and the second resource value, a first hydrogen production power adjustment command is generated, which is used to adjust the hydrogen production power of the virtual hydrogen power plant. According to the first hydrogen production power adjustment command, the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant is adjusted to increase the resource value of the target resource, wherein the target resource is the resource corresponding to the largest resource value among the first resource value and the second resource value.

2. The method according to claim 1, characterized in that, The step of generating a first hydrogen production power adjustment command based on the comparison relationship between the first resource value and the second resource value includes: If the first resource value is greater than the second resource value, a first hydrogen production power adjustment command to reduce hydrogen production power is generated. If the first resource value is less than the second resource value, a first hydrogen production power adjustment command to increase hydrogen production power is generated.

3. The method according to claim 1, characterized in that, The step of obtaining the current first resource value and the current second resource value includes: Obtain real-time electricity price, real-time hydrogen price, current unit hydrogen production cost, and current hydrogen production efficiency of the virtual hydrogen power plant; Based on the real-time hydrogen price signal, the current unit hydrogen production cost, and the current hydrogen production efficiency of the virtual hydrogen power plant, an equivalent hydrogen price signal is determined. The real-time electricity price is determined as the first resource value, and the equivalent hydrogen price signal is determined as the second resource value.

4. The method according to claim 1, characterized in that, The method further includes: In response to the dispatch command for obtaining the peak load period of the power grid, the minimum hydrogen production power of each of the electrolysis hydrogen production units is obtained; Based on the minimum hydrogen production power of each of the electrolytic hydrogen production units, a second hydrogen production power adjustment command is generated for each of the electrolytic hydrogen production units. The second hydrogen production power adjustment command is used to indicate that the hydrogen production power reaches the minimum hydrogen production power. According to the second hydrogen production power adjustment command, the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant is adjusted respectively.

5. The method according to claim 4, characterized in that, The minimum hydrogen production power was determined in the following manner: Obtain the initial minimum hydrogen production power, minimum baseline hydrogen storage mass, current hydrogen storage mass, and scheduling duration for each of the multiple electrolytic hydrogen production units; If the current hydrogen storage mass is greater than the minimum baseline hydrogen storage mass, then the hydrogen storage mass degradation rate is determined based on the mass difference between the current hydrogen storage mass and the minimum baseline hydrogen storage mass and the scheduling duration. The initial minimum hydrogen production power corresponding to each of the plurality of electrolytic hydrogen production units is adjusted according to the hydrogen storage quality degradation rate.

6. The method according to claim 4, characterized in that, The target electrolytic hydrogen production unit is one of multiple electrolytic hydrogen production units, and the minimum hydrogen production power of the target electrolytic hydrogen production unit is determined in the following way: Obtain the static minimum hydrogen production power of the target electrolytic hydrogen production unit and the electrochemical parameters of the target electrolytic hydrogen production unit, including the electrolyzer temperature, electrolyzer pressure and catalyst state; Based on the electrochemical parameters of the target electrolytic hydrogen production unit, the dynamic power compensation amount of the target electrolytic hydrogen production unit is obtained by processing it through a digital twin model. The digital twin model is obtained by training through electrochemical parameter samples and dynamic power compensation amount samples. The minimum hydrogen production power of the target electrolytic hydrogen production unit is determined based on the static minimum hydrogen production power of the target electrolytic hydrogen production unit and the dynamic power compensation amount of the target electrolytic hydrogen production unit.

7. A control device for a virtual hydrogen power plant, characterized in that, The device includes: A polymerization unit is used to polymerize multiple electrolytic hydrogen production units to obtain a virtual hydrogen power plant. The electrolytic hydrogen production unit includes an electrolytic hydrogen production system and supporting hydrogen storage facilities. The acquisition unit is used to acquire the current first resource value and the current second resource value, wherein the first resource value is used to characterize the resource value of electrical energy in the virtual hydrogen power plant, and the second resource value is used to characterize the resource value of hydrogen energy produced by the virtual hydrogen power plant. The generation unit is used to generate a first hydrogen production power adjustment instruction based on the comparison relationship between the first resource value and the second resource value. The first hydrogen production power adjustment instruction is used to adjust the hydrogen production power of the virtual hydrogen power plant. The adjustment unit is used to adjust the hydrogen production power corresponding to the multiple electrolysis hydrogen production units of the virtual hydrogen power plant according to the first hydrogen production power adjustment command, so as to increase the resource value of the target resource, wherein the target resource is the resource corresponding to the largest resource value among the first resource value and the second resource value.

8. A virtual hydrogen power plant, characterized in that, The virtual hydrogen power plant includes a processor, a memory, and multiple hydrogen electrolysis units: The memory is used to store computer programs and to transfer the computer programs to the processor; The processor has a corresponding communication link with each of the plurality of electrolytic hydrogen production units, and the processor is used to execute the method described in any one of claims 1-6 according to the computer program.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium is used to store a computer program for performing the method according to any one of claims 1-6.

10. A computer program product comprising a computer program, characterized in that, When it is run on a computer device, it causes the computer device to perform the method described in any one of claims 1-6.

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