Hybrid electrolytic hydrogen production system scheduling method and device, scheduling execution method and device and electronic equipment

Abstract

The invention provides a hybrid electrolytic hydrogen production system scheduling and scheduling execution method and device, and electronic equipment, and the method comprises the steps: determining corresponding to-be-matched power which can be allocated to electrolytic hydrogen production equipment according to each predicted value of new energy power generation power, and enabling a scale template of a first type of electrolytic hydrogen production equipment to be matched with the to-be-matched power, and distributing the successfully matched first part of power to the first type of electrolytic hydrogen production equipment for processing, and distributing the unsuccessfully matched second part of power to the second type of electrolytic hydrogen production equipment with higher response speed to the input power change for processing. According to the scheme, the matching bridge between the electrolytic cell load and the new energy fluctuation power is established through the scale template, optimal adaptation between fluctuation new energy output and the electrolytic cell absorption capacity is achieved, fast-changing new energy power input can be flexibly coped, meanwhile, the use cost of an electrolytic hydrogen production system is reduced, the hydrogen production efficiency is improved, and the energy consumption is reduced. And maximization of new energy efficiency is realized.

Description

Technical Field

[0001] The present application relates to the technical field of scheduling of electrolytic hydrogen production equipment, and in particular to a scheduling method, device and electronic equipment for a hybrid electrolytic hydrogen production system. Background Art

[0002] As an efficient energy conversion method, electrolysis hydrogen production technology provides an effective way for the flexible consumption of renewable energy. Electrolysis hydrogen production equipment includes alkaline electrolyzer (ALK), proton exchange membrane electrolyzer (PEM) and solid oxide electrolyzer (SOEC). As the electrolysis hydrogen production technology with the longest development history and the highest technical maturity, ALK is favored for its simple operation and low cost. However, ALK has a long cold start time and a relatively slow response speed to input power changes, which makes it less adaptable when facing renewable energy sources with strong volatility such as wind and solar. PEM can start quickly, respond quickly, and can flexibly respond to rapidly changing renewable energy power input, but its high equipment cost has become the main bottleneck restricting its large-scale application in the field of renewable energy hydrogen production. SOEC can use high-temperature waste heat to achieve efficient hydrogen production, and the system has high energy efficiency. However, high-temperature operation has strict requirements on materials and sealing technology, long start-up time, and high investment cost.

[0003] The electric energy used by electrolytic hydrogen production equipment is usually wind power generation and photovoltaic power generation. This electric energy is usually used to supply the load first, and the remaining electric energy is supplied to the electrolytic hydrogen production equipment. Due to the volatility of wind power generation and photovoltaic power generation, as well as the volatility of load power consumption, the power used to supply electrolytic hydrogen production equipment has volatility and intermittent characteristics, which is poorly matched with the workload characteristics of the electrolyzer hydrogen production equipment. Therefore, it is impossible to effectively convert new energy, which greatly restricts the efficient utilization and conversion of wind and solar resources, not only seriously affecting the system economy, but also has an adverse impact on the source-load balance.

[0004] In this regard, existing technical solutions usually include: 1. Setting up energy storage equipment to store fluctuating electric energy; 2. Developing flexible electrolyzers that can quickly adapt to external power changes; 3. Constructing a system containing multiple electrolyzers, and intelligently adjusting the number of modules involved in the work according to power fluctuations. For example, when power is low, the number of operating modules is reduced to maintain stable hydrogen production; when power is sufficient, the module investment is increased to improve hydrogen production capacity.

[0005] Although the above-mentioned methods can solve the impact of input power fluctuation on electrolytic hydrogen production equipment, they cannot take into account both high efficiency and low cost of electrolytic hydrogen production. Summary of the invention

[0006] This specification provides a hybrid electrolysis hydrogen production system scheduling and scheduling execution method, device and electronic equipment to solve the problem that the existing hybrid electrolysis hydrogen production system cannot achieve both high efficiency and low cost of electrolysis hydrogen production.

[0007] To solve the above technical problems, the first aspect of the present specification provides a hybrid electrolysis hydrogen production system scheduling method, including: obtaining a power prediction sequence value of renewable energy power generation; obtaining a scale template of a first type of electrolysis hydrogen production equipment and a second type of electrolysis hydrogen production equipment, the scale template including a maximum power change rate, a minimum power value and / or a maximum power value; the first type of electrolysis hydrogen production equipment responds slower to input power changes than the second type of electrolysis hydrogen production equipment; matching the scale template of the first type of electrolysis hydrogen production equipment with each power prediction value in the power prediction sequence value respectively; allocating a first part of the power of each power prediction value that is successfully matched to the first type of electrolysis hydrogen production equipment for processing; and allocating a second part of the power of each power prediction value that is unsuccessfully matched to the second type of electrolysis hydrogen production equipment for processing.

[0008] In some embodiments, the use cost of the first type of electrolytic hydrogen production equipment is lower than that of the second type of electrolytic hydrogen production equipment.

[0009] In some embodiments, the second type of hydrogen production by electrolysis equipment is a collection of multiple hydrogen production by electrolysis equipment other than the first type of hydrogen production by electrolysis equipment.

[0010] In some embodiments, the second category of hydrogen production by electrolysis equipment includes first subcategory hydrogen production by electrolysis equipment and second subcategory hydrogen production by electrolysis equipment; the second part of power that fails to match in each power prediction value is allocated to the second category of hydrogen production by electrolysis equipment for processing, including: matching the scale templates of the first subcategory of hydrogen production by electrolysis equipment with the second part of power respectively; allocating the first sub-power that successfully matches in the second part of power to the first subcategory of hydrogen production by electrolysis equipment for processing; and allocating the second sub-power that fails to match in the second part of power to the second subcategory of hydrogen production by electrolysis equipment for processing.

[0011] In some embodiments, the use cost of the first sub-category of hydrogen production by electrolysis equipment is lower than that of the second sub-category of hydrogen production by electrolysis equipment.

[0012] In some embodiments, the scale template includes a maximum power change rate and a minimum power value; before matching the scale template of the first type of hydrogen production by electrolysis equipment with each power prediction value in the power prediction sequence value, it also includes: calculating the maximum power and the minimum power that the first type of hydrogen production by electrolysis equipment as a whole can bear according to the maximum change rate of each first type of hydrogen production by electrolysis equipment; when the power value to be matched is greater than or equal to the maximum power value, determining that the power matching of the maximum power part in the power value to be matched is successful; when the power value to be matched is less than or equal to the minimum power value, controlling the energy storage device to perform an energy release operation to supply the first type of hydrogen production by electrolysis equipment for use; when the power value to be matched is between the minimum power value and the maximum power value, executing matching of the scale template of the first type of hydrogen production by electrolysis equipment with each power prediction value in the power prediction sequence value.

[0013] In some embodiments, the scale templates of the first-class hydrogen production equipment by electrolysis are matched with each power prediction value in the power prediction sequence value, including: matching the scale templates of each first-class hydrogen production equipment by electrolysis with the remaining power prediction value in a preset order; the remaining power prediction value is the difference between the power prediction value and the power allocation amount of each matched first-class hydrogen production equipment by electrolysis.

[0014] In some embodiments, the scale template of the first type of hydrogen production by electrolysis equipment is matched with each power prediction value in the power prediction sequence value, including: gradually increasing or decreasing the proposed allocated power value or power ramp rate of each first type of hydrogen production by electrolysis equipment under the constraint of the scale template of the first type of hydrogen production by electrolysis equipment, calculating the maximum value of the proposed allocated power value of each first type of hydrogen production by electrolysis equipment without exceeding the limit of the scale template, and taking the sum of the maximum values ​​of the proposed allocated power values ​​of each first type of hydrogen production by electrolysis equipment as the first part of the power successfully allocated in the power value to be matched.

[0015] In some embodiments, before matching the scale template of the first type of hydrogen production by electrolysis equipment with each power prediction value in the power prediction sequence value respectively, it also includes: calculating the minimum power required by the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment according to the scale template of the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment; calculating the power difference between the power prediction value and the minimum power required by the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment; matching the scale template of the first hydrogen production by electrolysis equipment among the remaining first type of hydrogen production by electrolysis equipment with the power difference; or, using the power difference as the power to be matched; accordingly, allocating the second part of the power that fails to match in each power prediction value to the second type of hydrogen production by electrolysis equipment for processing, including: allocating the minimum power required by the second type of hydrogen production by electrolysis equipment and the second part of the power that fails to match in each power prediction value to the second type of hydrogen production by electrolysis equipment for processing.

[0016] In some embodiments, the first type of electrolysis hydrogen production equipment includes alkaline electrolysis hydrogen production equipment, and the second type of electrolysis hydrogen production equipment includes proton exchange membrane electrolysis hydrogen production equipment.

[0017] In some embodiments, the scale template of the alkaline electrolysis hydrogen production equipment is: the maximum power change rate ranges from 0.3% Pe / s to 3% Pe / s, and the minimum power value is 40% Pe to 60% Pe; the scale template of the proton exchange membrane electrolysis hydrogen production equipment is: the maximum power change rate ranges from 30% Pe to 50% Pe, and the minimum power value is 5% Pe to 20% Pe; wherein Pe represents the rated input power.

[0018] The second aspect of the present specification provides a method for scheduling and executing a hybrid electrolysis hydrogen production system, including: predicting the renewable energy power generation of each day within the first time period at intervals of a first time period to obtain a daily power prediction sequence value; executing the hybrid electrolysis hydrogen production system scheduling method described in any one of the first aspects based on the power prediction values ​​of each day within the first time period, and preliminarily formulating a scheduling plan for the hybrid electrolyzer according to the power allocation result; predicting the renewable energy power generation in real time on each target day; executing the hybrid electrolysis hydrogen production system scheduling method described in any one of the first aspects based on the real-time prediction value of the renewable energy power generation, and adjusting the input power of various types of electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system according to the power allocation result.

[0019] In some embodiments, before scheduling various types of electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system according to the power allocation results, it also includes: on each target day, predicting the new energy power generation power once at an interval of a second time period to obtain a power prediction sequence value at midday; based on the power prediction sequence value at midday, respectively executing the hybrid electrolysis hydrogen production system scheduling method described in any one of the first aspects, and adjusting the scheduling plan of the hybrid electrolyzer according to the power allocation results.

[0020] The third aspect of the present specification provides a hybrid electrolysis hydrogen production system scheduling device, including: a first acquisition unit, used to obtain a power prediction sequence value of renewable energy power generation; a second acquisition unit, used to obtain a scale template of a first type of electrolysis hydrogen production equipment and a second type of electrolysis hydrogen production equipment, the scale template including a maximum power change rate, a minimum power value and / or a maximum power value; the first type of electrolysis hydrogen production equipment responds slower to input power changes than the second type of electrolysis hydrogen production equipment; a first matching unit, used to match the scale template of the first type of electrolysis hydrogen production equipment with each power prediction value in the power prediction sequence value; a first allocation unit, used to allocate a first part of the power that is successfully matched in each power prediction value to the first type of electrolysis hydrogen production equipment for processing; a second allocation unit, used to allocate a second part of the power that is unsuccessfully matched in each power prediction value to the second type of electrolysis hydrogen production equipment for processing.

[0021] In some embodiments, the use cost of the first type of electrolytic hydrogen production equipment is lower than that of the second type of electrolytic hydrogen production equipment.

[0022] In some embodiments, the second type of hydrogen production by electrolysis equipment is a collection of multiple hydrogen production by electrolysis equipment other than the first type of hydrogen production by electrolysis equipment.

[0023] In some embodiments, the second category of hydrogen production by electrolysis equipment includes first subcategory of hydrogen production by electrolysis equipment and second subcategory of hydrogen production by electrolysis equipment; the second allocation unit includes: a first matching subunit, used to match the scale templates of the first subcategory of hydrogen production by electrolysis equipment with the second part of power respectively; a first allocation subunit, used to allocate the first sub-power that is successfully matched in the second part of power to the first subcategory of hydrogen production by electrolysis equipment for processing; a second allocation subunit, used to allocate the second sub-power that is unsuccessfully matched in the second part of power to the second subcategory of hydrogen production by electrolysis equipment for processing.

[0024] In some embodiments, the use cost of the first sub-category of hydrogen production by electrolysis equipment is lower than that of the second sub-category of hydrogen production by electrolysis equipment.

[0025] In some embodiments, the scale template includes a maximum power change rate and a minimum power value; the device also includes: a first calculation unit, used to calculate the maximum power and the minimum power that the first-class electrolytic hydrogen production equipment as a whole can bear according to the maximum change rate of each first-class electrolytic hydrogen production equipment; a first determination unit, used to determine that the power matching of the maximum power part in the power value to be matched is successful when the power value to be matched is greater than or equal to the maximum power; a second determination unit, used to control the energy storage device to perform an energy release operation to supply the first-class electrolytic hydrogen production equipment when the power value to be matched is less than or equal to the minimum power value; when the power value to be matched is between the minimum power value and the maximum power value, the first matching unit executes matching of the scale template of the first-class electrolytic hydrogen production equipment with each power prediction value in the power prediction sequence value.

[0026] In some embodiments, the first matching unit includes: a second matching sub-unit, used to match the scale template of each first-type electrolytic hydrogen production equipment with the remaining power prediction value in a preset order; the remaining power prediction value is the difference between the power prediction value and the power allocation amount of each matched first-type electrolytic hydrogen production equipment.

[0027] In some embodiments, the first matching unit includes: a third matching sub-unit, which is used to gradually increase or decrease the proposed allocated power value or power ramp rate of each first-class hydrogen production equipment under the constraint of the scale template of the first-class hydrogen production equipment, calculate the maximum value of the proposed allocated power value of each first-class hydrogen production equipment without exceeding the limit of the scale template, and take the sum of the maximum values ​​of the proposed allocated power values ​​of each first-class hydrogen production equipment as the first part of the power successfully allocated in the power value to be matched.

[0028] In some embodiments, the device also includes: a second calculation unit, used to calculate the minimum power required by the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment according to the scale templates of the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment; a third calculation unit, used to calculate the power difference between the power prediction value and the minimum power required by the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment; a second matching unit, used to match the scale template of the first hydrogen production by electrolysis equipment among the remaining first type of hydrogen production by electrolysis equipment with the power difference; or, use the power difference as the power to be matched; accordingly, the second allocation unit allocates the minimum power required by the second type of hydrogen production by electrolysis equipment and the second part of the power that fails to match in each power prediction value to the second type of hydrogen production by electrolysis equipment for processing.

[0029] In some embodiments, the first type of electrolysis hydrogen production equipment includes alkaline electrolysis hydrogen production equipment, and the second type of electrolysis hydrogen production equipment includes proton exchange membrane electrolysis hydrogen production equipment.

[0030] In some embodiments, the scale template of the alkaline electrolysis hydrogen production equipment is: the maximum power change rate ranges from 0.3% Pe / s to 3% Pe / s, and the minimum power value is 40% Pe to 60% Pe; the scale template of the proton exchange membrane electrolysis hydrogen production equipment is: the maximum power change rate ranges from 30% Pe to 50% Pe, and the minimum power value is 5% Pe to 20% Pe; wherein Pe represents the rated input power.

[0031] The fourth aspect of the present specification provides a hybrid electrolysis hydrogen production system scheduling execution device, including: a first prediction unit, used to predict the new energy power generation of each day within the first time period every first time period, and obtain a daily power prediction sequence value; a plan formulation unit, used to execute the hybrid electrolysis hydrogen production system scheduling method described in any one of the first aspects based on the power prediction value of each day within the first time period, and preliminarily formulate a scheduling plan for the hybrid electrolyzer according to the power allocation result; a second prediction unit, used to predict the new energy power generation in real time on each target day; a plan execution unit, used to execute the hybrid electrolysis hydrogen production system scheduling method described in any one of the first aspects based on the real-time prediction value of the new energy power generation, and adjust the input power of various types of electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system according to the power allocation result.

[0032] In some embodiments, the device also includes: a third prediction unit, used to predict the new energy power generation power once at a second time interval on each target day to obtain a power prediction sequence value at the middle of the day; a plan adjustment unit, used to execute the hybrid electrolysis hydrogen production system scheduling method described in any one of the first aspects based on the power prediction sequence value at the middle of the day, and adjust the scheduling plan of the hybrid electrolyzer according to the power allocation result.

[0033] The fifth aspect of this specification provides an electronic device, comprising: a memory and a processor, wherein the processor and the memory are communicatively connected to each other, the memory stores computer instructions, and the processor implements any method described in the first aspect by executing the computer instructions.

[0034] A sixth aspect of the present specification provides a computer storage medium, wherein the computer storage medium stores computer program instructions, and when the computer program instructions are executed, the steps of any one of the methods described in the first aspect are implemented.

[0035] A seventh aspect of the present specification provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of any one of the methods described in the first aspect.

[0036] The hybrid electrolysis hydrogen production system scheduling and scheduling execution method, device and electronic equipment provided in this specification introduces a scale template for each electrolysis hydrogen production equipment, and determines the corresponding power to be matched that can be allocated to the electrolysis hydrogen production equipment according to each predicted value of the new energy power generation. The scale template of the first type of electrolysis hydrogen production equipment is matched with the power to be matched, and the first part of the power to be matched that is successfully matched is allocated to the first type of electrolysis hydrogen production equipment for processing, and the second part of the power to be matched that is unsuccessfully matched is allocated to the second type of electrolysis hydrogen production equipment for processing, wherein the first type of electrolysis hydrogen production equipment responds slower to changes in input power than the second type of electrolysis hydrogen production equipment. This scheme proposes a scale template that reflects the characteristics of different electrolysis hydrogen production equipment. The scale template can be used to establish a matching bridge between the electrolyzer load and the fluctuating power of new energy, and achieve the optimal adaptation between the fluctuating new energy output and the electrolyzer absorption capacity, thereby improving the absorption capacity of new energy, reducing the amount of wind and solar power abandonment, and increasing hydrogen production.

[0037] This solution allows the input power to be preferentially allocated to the first type of electrolyzer for processing, and by responding faster to the more volatile part of the input power of the second type of electrolytic hydrogen production equipment, this solution is less expensive than developing flexible electrolyzers. In other words, this solution can flexibly respond to the rapidly changing new energy power input while reducing the cost of the electrolytic hydrogen production system, improving hydrogen production efficiency, and maximizing new energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0039] Figure 1 This is a schematic diagram of the power supply for the electrolysis hydrogen production system;

[0040] Figure 2 A flow chart of a hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0041] Figure 3 A flow chart of another hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0042] Figure 4 A flow chart of another hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0043] Figure 5A flow chart of another hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0044] Figure 6 A flow chart of another hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0045] Figure 7 A flow chart of another hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0046] Figure 8 A flow chart of another hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0047] Fig. 9 A flow chart of another hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0048] Fig.10 A flow chart of another hybrid electrolysis hydrogen production system scheduling method provided in this specification;

[0049] Fig.11 A flow chart of a method for distributing the second part of power that fails to match each power prediction value to the second type of electrolytic hydrogen production equipment;

[0050] Fig.12 A flow chart of a method for scheduling and executing a hybrid electrolysis hydrogen production system provided in this specification;

[0051] Fig.13 A flowchart of another hybrid electrolysis hydrogen production system scheduling execution method provided in this specification;

[0052] Fig.14 A schematic diagram of a hybrid electrolysis hydrogen production system scheduling device provided in this specification;

[0053] Fig.15 A schematic diagram of a hybrid electrolysis hydrogen production system scheduling execution device provided in this specification;

[0054] Fig.16 This is a schematic diagram of the structure of the electronic device provided in this manual. DETAILED DESCRIPTION

[0055] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of this application.

[0056] The present specification provides a hybrid electrolysis hydrogen production system scheduling method, which is used for an electrolysis hydrogen production system including at least two electrolysis hydrogen production equipment, where the at least two electrolysis hydrogen production equipment differ in terms of usage cost, response speed to input power changes, etc.

[0057] Electrolysis hydrogen production equipment is a general term for devices used to produce hydrogen. It can convert hydrogen-containing compounds or raw materials such as water into hydrogen through various chemical or physical methods. Figure 1 This is a power supply schematic diagram of an electrolytic hydrogen production system including at least two electrolytic hydrogen production equipment. The electric energy generated by wind power generation and photovoltaic power generation is mainly used to supply loads, and the remaining electric energy used by the loads is supplied to the electrolytic hydrogen production system.

[0058] like Figure 2 As shown, the hybrid electrolysis hydrogen production system scheduling method provided in this specification includes the following S10 to S50.

[0059] S10: Obtain power prediction sequence values ​​of renewable energy power generation.

[0060] Renewable energy generation includes wind power generation and photovoltaic power generation, and in some cases it can also include solar thermal power generation, hydropower generation, etc. These renewable energy generation have certain regularity on a macro time scale (for example, wind power generation is larger in a few months of each year, photovoltaic power generation is larger in the summer of each year, and the power generation in month x is usually larger than that in month y, etc.), but the regularity is not obvious on a smaller time scale (for example, the power generation on the same day this year is different from that on the same day last year).

[0061] Based on the above-mentioned regularity on a macroscopic time scale, the power of renewable energy power generation can be predicted, and then the overall scheduling plan of the hybrid electrolysis hydrogen production system can be formulated according to the prediction results; or, the power generation power can be predicted in real time by combining the regularity on a macroscopic time scale with the historical power generation power, so that various types of electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system can be scheduled in real time according to the real-time prediction results.

[0062] The power forecast sequence value refers to the forecast value at each time unit when the power value is forecasted according to the unit time scale. For example, when the power value is forecasted in days, the power forecast sequence value is the sequence value formed by the power forecast value of each day.

[0063] The above-mentioned "power prediction sequence value of renewable energy power generation" refers to the prediction value sequence of the input power that can be provided by each renewable energy power generation equipment that can provide electric energy to the hybrid electrolysis hydrogen production system. The input power that can be provided by various renewable energy power generation equipment can be predicted uniformly or separately.

[0064] S20: Obtaining scale templates of the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment, wherein the scale templates include a maximum power change rate, a minimum power value and / or a maximum power value.

[0065] The scale template is a portrait of the electrolytic hydrogen production equipment, which can reflect the operating status of a healthy electrolytic hydrogen production equipment. The scale template can include the maximum power change rate, the minimum power value and / or the maximum power value.

[0066] The power change rate refers to the ratio of the difference between the current input power and the previous input power to the previous input power. For electrolytic hydrogen production equipment, the power change rate is divided into power ramp rate and power load reduction rate. Some electrolytic hydrogen production equipment that responds slowly to changes in input power will have their healthy operation affected by a sudden increase or decrease in current during operation. For example, a sudden increase or decrease in current during the operation of an alkaline electrolyzer will cause uneven temperature of the electrolytic cell alkali solution, thereby damaging the electrolyzer body and aggravating the corrosion of the bipolar plates.

[0067] The maximum power value refers to the maximum value of the power that can be input during the healthy operation of the electrolytic hydrogen production equipment. The minimum power value refers to the minimum value of the power that can be input during the healthy operation of the electrolytic hydrogen production equipment. In some embodiments, the scale template may include only one of the maximum power value and the minimum power value.

[0068] In some embodiments, if the temperature in the electrolytic hydrogen production equipment is too high, it will accelerate electrode corrosion, reduce current efficiency, affect product quality, cause safety hazards, etc., and if the temperature is too low, it will increase the resistance of the electrolyte, slow down the reaction rate, cause the electrolyte to solidify or crystallize, etc., so it is necessary to maintain the temperature in the electrolytic hydrogen production equipment within a healthy working range. Therefore, the scale template can also include a maximum temperature and a minimum temperature.

[0069] In some embodiments, the hydrogen storage capacity of the electrolytic hydrogen production system is limited, and the excessive production of hydrogen or oxygen that cannot be stored may be dangerous. Therefore, the scale template may also include a maximum value for the hydrogen or oxygen production rate.

[0070] The scale template of the proton exchange membrane electrolysis hydrogen production equipment is: the maximum power change rate is 30%Pe~50%Pe, and the minimum power is 5%Pe~20%Pe.

[0071] The scale templates for the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment are determined based on whether the equipment is operating healthily. Different people may have different determinations on the scale templates.

[0072] For an alkaline electrolytic cell, the scale template may be: the maximum value of the power change rate ranges from 0.3%Pe / s to 3%Pe / s, and the minimum power value ranges from 40%Pe to 60%Pe.

[0073] In fact, the input power of the alkaline electrolyzer can be between 30%Pe (where Pe represents the rated input power of the alkaline electrolyzer) and 100%Pe, and this has been done in actual projects. When the input power is reduced to 22%Pe, the hydrogen in oxygen can also be controlled to be less than or equal to 1.5%, meeting the requirements for healthy operation. However, considering the long-term operation safety, the input power scale should be required to have a margin. For example, many alkaline electrolyzer manufacturers recommend an input power value of 50%Pe to 100%Pe, which means that the minimum input power value can be 50%Pe.

[0074] In terms of power ramp rate and power load reduction rate, although the short-term instantaneous change of the input power of the alkaline electrolyzer can reach less than or equal to 10% Pe / s, manufacturers often recommend that the change value of the input power of the alkaline electrolyzer be limited to 1% Pe / s to 3% Pe / s in actual use from a safety perspective. Manufacturers hope that users of alkaline electrolyzers can achieve the effect of power peak shaving and valley filling through energy storage, rather than using the electrolyzer to the extreme to cope with power and load fluctuations. Based on this, the margin can be further enlarged, and the maximum value of the input power change rate allocated to the alkaline electrolyzer is 0.5% Pe / s. If the power prediction value supplied to the alkaline electrolyzer will cause the input power ramp rate of the alkaline electrolyzer to be greater than 0.5% Pe / s, the input power should be allocated to the second type of electrolytic hydrogen production equipment to increase its input power.

[0075] For a proton exchange membrane electrolyzer, the scale template can be: the maximum power change rate is 30% Pe~50% Pe, for example, it can be 40% Pe / s; the minimum power value is 5% Pe~20% Pe, for example, the input power of the proton exchange membrane electrolyzer can range from 10% Pe-150% Pe, that is, the minimum input power can be 10% Pe.

[0076] There may be multiple first-type electrolytic hydrogen production equipment and multiple second-type electrolytic hydrogen production equipment.

[0077] S30: Matching the scale template of the first type of electrolytic hydrogen production equipment with each power prediction value in the power prediction sequence value respectively.

[0078] In some embodiments, the plurality of first-type electrolytic hydrogen production equipment can be controlled separately, that is, the input power of each first-type electrolytic hydrogen production equipment can be adjusted differently. Accordingly, in S30, each first-type electrolytic hydrogen production equipment can be matched with the power prediction sequence value during matching.

[0079] Specifically, Figure 3 As shown, S30 includes S31: matching the scale templates of each first-category hydrogen production equipment with the remaining power prediction value in a preset order; the remaining power prediction value is the difference between the power prediction value and the power allocation amount of each matched first-category hydrogen production equipment.

[0080] For example, the power prediction value is 15 units, and there are 5 identical first-class electrolysis hydrogen production equipment A, B, C, D, and E. Assuming that each device can bear a maximum of 3.5 units of power, and the matching order is ABCDE, then A can bear 3.5 units of the power prediction value, and then there are 11.5 units of power remaining; B can bear 3.5 units of power, and then there are 8.5 units of power remaining; C can bear 3.5 units, and then there are 5 units of power remaining; D can bear 3.5 units, and then there are 1.5 units of power remaining; E can bear the remaining 1.5 units of power.

[0081] If there are no D and E in the above example, the remaining 5 units of power are the second part of power that is not successfully matched with the first type of electrolysis hydrogen production equipment.

[0082] The scale templates of the plurality of first-type electrolytic hydrogen production equipments executing the above S31 may be the same or different. The above example only shows the case where the scale templates are the same, but does not mean that the scale templates of the first-type electrolytic hydrogen production equipments must be the same.

[0083] The preset sequence may be the serial number sequence of the electrolytic hydrogen production equipment, the sequence of the actual input power of the electrolytic hydrogen production equipment from large to small, or the sequence of the actual input power of the electrolytic hydrogen production equipment from small to large. In addition, the preset sequence may also be a sequence determined by other means.

[0084] exist Figure 3 Based on the method shown, further, as Figure 4 As shown, before S31, S60 may be further included: calculating the minimum power required by the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment according to the scale templates of the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment.

[0085] Based on the input power of the first type of electrolytic hydrogen production equipment in operation at the previous moment and the planned input power of each first type of electrolytic hydrogen production equipment when the power reduction rate is maximum, the sum of these planned input powers can be used as the minimum power required for the first type of electrolytic hydrogen production equipment; based on the input power of the second type of electrolytic hydrogen production equipment in operation at the previous moment and the planned input power of each second type of electrolytic hydrogen production equipment when the power reduction rate is maximum, the sum of these planned input powers can be used as the minimum power required for the second type of electrolytic hydrogen production equipment.

[0086] Accordingly, if Figure 4 As shown, S30 includes executing the following S32 and S33 before S31.

[0087] S32: Calculate the power difference between the power prediction value and the minimum power required by the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment.

[0088] S33: Match the scale template of the first electrolytic hydrogen production equipment among the remaining first-category electrolytic hydrogen production equipment with the power difference. The specific matching method may be: calculate the maximum power that the first electrolytic hydrogen production equipment can bear according to the scale template of the first electrolytic hydrogen production equipment, and when the power difference is greater than or equal to the maximum power that the first electrolytic hydrogen production equipment can bear, determine that the maximum power that the first electrolytic hydrogen production equipment can bear is matched successfully; when the power difference is less than the maximum power that the first electrolytic hydrogen production equipment can bear, determine that the power difference is matched successfully. Correspondingly, S31 may also be this matching method.

[0089] The maximum power that the first electrolytic hydrogen production equipment can bear can be the difference between the power borne by the first electrolytic hydrogen production equipment when the power ramp rate is the maximum and the power borne when the power load reduction rate is the maximum. In other words, the maximum power that the first electrolytic hydrogen production equipment can bear is the maximum value of the power that it can bear in addition to the minimum power required.

[0090] Correspondingly, S40 may be S41: allocating the minimum power required by the first type of hydrogen production by electrolysis equipment and the first part of the power that successfully matches each power prediction value to the first type of hydrogen production by electrolysis equipment for processing, and S50 may be S51: allocating the minimum power required by the second type of hydrogen production by electrolysis equipment and the second part of the power that fails to match each power prediction value to the second type of hydrogen production by electrolysis equipment for processing.

[0091] Through the above S32 and S33, before allocating power to the first type of electrolytic hydrogen production equipment, the minimum power required by the second type of electrolytic hydrogen production equipment is first guaranteed, so as to avoid the power allocated to the second type of electrolytic hydrogen production equipment being too small, making it difficult to ensure the power load reduction rate of the second type of electrolytic hydrogen production equipment in operation being too large, thereby affecting the healthy operation of the second type of electrolytic hydrogen production equipment.

[0092] In some embodiments, Figure 5 and Figure 6 As shown, before S31, the following S34, S35, S36 and S37 are also included.

[0093] S34: Calculate the maximum power and the minimum power that the first-type hydrogen production equipment can bear as a whole according to the maximum change rate of each first-type hydrogen production equipment by electrolysis.

[0094] S35: When the power value to be matched is greater than or equal to the maximum power value, determine that the power matching of the maximum power value in the power value to be matched is successful. In this case, the power matching of other parts is unsuccessful.

[0095] In the case where the above S60 is not executed, Figure 5 As shown, the power value to be matched is the power prediction value. In the case of executing the above S60, if Figure 6 As shown, the power value to be matched is the power difference between the power prediction value and the minimum power required by the second type of electrolytic hydrogen production equipment.

[0096] S36: When the power value to be matched is less than or equal to the minimum power value, the energy storage device is controlled to perform an energy release operation to supply the first type of electrolytic hydrogen production equipment. In this case, it is determined that the power to be matched is unsuccessful.

[0097] Specifically, the power that the energy storage device needs to release electric energy at least includes the difference between the minimum power value and the power value to be matched. By controlling the energy storage device to perform the energy release operation, the power unloading rate of the first type of electrolytic hydrogen production equipment can be prevented from being too fast and affecting its healthy operation.

[0098] S37: When the power value to be matched is between the minimum power value and the maximum power value, execute the above matching method.

[0099] In some embodiments, the plurality of first-class electrolytic hydrogen production equipment can be uniformly controlled during control, that is, the input power of each first-class electrolytic hydrogen production equipment can be increased or decreased in a balanced manner. Accordingly, in S30, each first-class electrolytic hydrogen production equipment can be matched with the power prediction sequence value as a whole during matching.

[0100] Specifically, Figure 7As shown, S30 includes S38: gradually increasing or decreasing the proposed allocated power value or power ramp rate of each first-class hydrogen production by electrolysis equipment under the constraint of the scale template of the first-class hydrogen production by electrolysis equipment, calculating the maximum value of the proposed allocated power value of each first-class hydrogen production by electrolysis equipment without exceeding the limit of the scale template, and taking the sum of the maximum values ​​of the proposed allocated power values ​​of each first-class hydrogen production by electrolysis equipment as the first part of the power successfully allocated in the power value to be matched.

[0101] exist Figure 7 Based on the method shown, further, as Figure 8 As shown, before S38, S70 may be further included: calculating the minimum power required by the second type of hydrogen production by electrolysis equipment according to the scale template of the second type of hydrogen production by electrolysis equipment.

[0102] Based on the input power of the second type of hydrogen production by electrolysis equipment in operation at the last moment and the planned input power of each second type of hydrogen production by electrolysis equipment when the power reduction rate is maximum, the sum of these planned input powers can be used as the minimum power required by the second type of hydrogen production by electrolysis equipment.

[0103] Accordingly, if Figure 8 As shown, S30 includes executing the following S39 and S310 before S38.

[0104] S39: Calculate the power difference between the predicted power value and the minimum power value required by the second type of electrolytic hydrogen production equipment.

[0105] S310: taking the power difference as the power to be matched. Accordingly, S50 may be S51: allocating the minimum power required by the second type of hydrogen production by electrolysis equipment and the second part of the power that is not successfully matched in each power prediction value to the second type of hydrogen production by electrolysis equipment for processing.

[0106] Through the above S39 and S310, before allocating power to the first type of electrolytic hydrogen production equipment, the minimum power required by the second type of electrolytic hydrogen production equipment is first guaranteed, so as to avoid the power allocated to the second type of electrolytic hydrogen production equipment being too small, making it difficult to ensure the power load reduction rate of the second type of electrolytic hydrogen production equipment in operation being too large, thereby affecting the healthy operation of the second type of electrolytic hydrogen production equipment.

[0107] In some embodiments, Fig. 9 and Fig.10 As shown, before S38, the following S311, S312 and S313 are also included.

[0108] S311: Calculate the maximum power and the minimum power that the first-type hydrogen production electrolysis equipment can bear as a whole according to the maximum change rate of each first-type hydrogen production electrolysis equipment.

[0109] S312: When the power value to be matched is greater than or equal to the maximum power value, determine that the power matching of the maximum power value in the power value to be matched is successful. In this case, the power matching of other parts is unsuccessful.

[0110] In the case where the above S70 is not executed, Fig.10 As shown, the power value to be matched is the power prediction value. In the case of executing the above S70, if Fig. 9 As shown, the power value to be matched is the power difference between the power prediction value and the minimum power required by the second type of electrolytic hydrogen production equipment.

[0111] S313: When the power value to be matched is less than or equal to the minimum power value, the energy storage device is controlled to perform an energy release operation to supply the first type of electrolytic hydrogen production equipment. In this case, it is determined that the power to be matched is unsuccessful.

[0112] Specifically, the power that the energy storage device needs to release electric energy at least includes the difference between the minimum power value and the power value to be matched. By controlling the energy storage device to perform the energy release operation, the power unloading rate of the first type of electrolytic hydrogen production equipment can be prevented from being too fast and affecting its healthy operation.

[0113] S314: When the power value to be matched is between the minimum power value and the maximum power value, execute the above matching method.

[0114] S40: Allocate the first part of power that successfully matches among the power prediction values ​​to the first type of electrolytic hydrogen production equipment for processing.

[0115] The first part of the power is the power that is successfully matched in the power prediction value.

[0116] The first part of power that is successfully matched means that the first part of power allocated to the first type of electrolytic hydrogen production equipment will not put it in an unhealthy working state. Correspondingly, the second part of power that is unsuccessfully matched means that, under the premise that the first part of power has been allocated to the first type of electrolytic hydrogen production equipment, allocating the second part of power to the first type of electrolytic hydrogen production equipment will put it in an unhealthy working state.

[0117] S50: Allocate the second part of the power that fails to match the respective power prediction values ​​to the second type of hydrogen production by electrolysis equipment for processing.

[0118] The second part of power is the power that is not successfully matched in the power prediction value.

[0119] In some embodiments, the first type of electrolytic hydrogen production equipment responds slower to input power changes than the second type of electrolytic hydrogen production equipment. For example, the first type of electrolytic hydrogen production equipment may be an alkaline electrolyzer, which is difficult to shut down or start quickly, and the hydrogen production speed is difficult to adjust quickly, because the pressure on the anode and cathode sides of the electrolytic cell must be kept balanced at all times to prevent hydrogen and oxygen gases from mixing through the porous asbestos membrane and causing an explosion. In the face of rapidly fluctuating power input, it is difficult to quickly adjust the hydrogen production state, and system startup, shutdown, and power adjustment take a long time.

[0120] The use cost of the above-mentioned first type of electrolytic hydrogen production equipment is lower than that of the second type of electrolytic hydrogen production equipment.

[0121] The second type of electrolytic hydrogen production equipment mentioned above can be a proton exchange membrane electrolyzer. Alkaline electrolyzers and proton exchange membrane electrolyzers have become the two mainstream technologies in the engineering field.

[0122] By matching the power of the first type of hydrogen production electrolysis equipment and the second type of hydrogen production electrolysis equipment in order, it can be ensured that the hydrogen production electrolysis equipment works in coordination while the hydrogen production electrolysis equipment operates healthily, and the first type of hydrogen production equipment is given priority to bear the input power. This can flexibly respond to the rapidly changing input of new energy electricity while reducing the use cost of the hydrogen production electrolysis system, improving hydrogen production efficiency and maximizing new energy efficiency.

[0123] In some embodiments, the second type of electrolytic hydrogen production equipment may be a type of electrolytic hydrogen production equipment, or may be a collection of multiple types of electrolytic hydrogen production equipment other than the first type of electrolytic hydrogen production equipment.

[0124] In some embodiments, when the second type of hydrogen production by electrolysis equipment is a collection of multiple types of hydrogen production by electrolysis equipment other than the first type of hydrogen production by electrolysis equipment, the second type of hydrogen production by electrolysis equipment includes the first subtype of hydrogen production by electrolysis equipment and the second subtype of hydrogen production by electrolysis equipment. Fig.11 As shown, S50 may include the following S5A1 to SA53.

[0125] SA51: Match the scale template of the first subcategory of electrolytic hydrogen production equipment with the second part of the power respectively.

[0126] SA52: Allocate the successfully matched first sub-power in the second part of power to the first sub-category of hydrogen production electrolysis equipment for processing.

[0127] SA53: Allocate the unsuccessfully matched second sub-power in the second part of power to the second sub-category of electrolytic hydrogen production equipment for processing.

[0128] The use cost of the above-mentioned first sub-category electrolytic hydrogen production equipment is lower than that of the second sub-category electrolytic hydrogen production equipment. Through the power matching sequence of the first sub-category electrolytic hydrogen production equipment and the second sub-category electrolytic hydrogen production equipment, it can be ensured that the electrolytic hydrogen production equipment works in coordination under the condition of healthy operation of the electrolytic hydrogen production equipment, and the first sub-category electrolytic hydrogen production equipment is preferentially used to bear the input power, which can flexibly respond to the rapidly changing new energy power input, reduce the use cost of the electrolytic hydrogen production system, improve the hydrogen production efficiency, and maximize the efficiency of new energy.

[0129] The power matching method of the above SA51 can be referred to Figures 3 to 10 Any power matching method is different in that the first type of electrolytic hydrogen production equipment is replaced by the first type of electrolytic hydrogen production equipment, the second type of electrolytic hydrogen production equipment is replaced by the second sub-type electrolytic hydrogen production equipment, the power prediction value is replaced by the second part of the power, the first part of the power is replaced by the first sub-power, and the second part of the power is replaced by the second sub-power. This specification will not be repeated.

[0130] The hybrid electrolysis hydrogen production system scheduling method provided in this specification introduces a scale template for each electrolysis hydrogen production equipment, and determines the corresponding power to be matched that can be allocated to the electrolysis hydrogen production equipment according to each predicted value of the new energy power generation. The scale templates of the first type of electrolysis hydrogen production equipment are matched with the power to be matched, and the first part of the power to be matched that is successfully matched is allocated to the first type of electrolysis hydrogen production equipment for processing, and the second part of the power to be matched that is unsuccessfully matched is allocated to the second type of electrolysis hydrogen production equipment for processing, wherein the first type of electrolysis hydrogen production equipment responds slower to changes in input power than the second type of electrolysis hydrogen production equipment. This scheme proposes a scale template that reflects the characteristics of different electrolysis hydrogen production equipment. The scale template can be used to establish a matching bridge between the electrolyzer load and the fluctuating power of new energy, and achieve optimal adaptation between the fluctuating new energy output and the electrolyzer absorption capacity, thereby improving the absorption capacity of new energy, reducing the amount of abandoned wind and solar power, and increasing hydrogen production.

[0131] This solution allows the input power to be preferentially allocated to the first type of electrolyzer for processing, and by responding faster to the more volatile part of the input power of the second type of electrolytic hydrogen production equipment, this solution is less expensive than developing flexible electrolyzers. In other words, this solution can flexibly respond to the rapidly changing new energy power input while reducing the cost of the electrolytic hydrogen production system, improving hydrogen production efficiency, and maximizing new energy efficiency.

[0132] The first type of electrolytic hydrogen production equipment can be selected based on the core requirements for the design of the electrolytic hydrogen production system. For example, when the electrolytic hydrogen production system is required to be low-cost, the first type of electrolytic hydrogen production equipment can select an alkaline electrolyzer with a lower usage cost; when the electrolytic hydrogen production system is required to produce a high hydrogen output rate, an electrolyzer with a higher hydrogen output rate can be selected.

[0133] This specification provides a hybrid electrolysis hydrogen production system scheduling execution method, such as Fig.12 As shown, it includes the following S81 to S84.

[0134] S81: predicting the renewable energy power generation of each day within the first time period at intervals of the first time period to obtain a daily power prediction sequence value.

[0135] The first duration is a period of time greater than 24 hours. The first duration may be an integer multiple of 24 hours. For example, the first duration may be one day, then S81 performs a forecast once a day, and preliminarily formulates a scheduling plan for the hybrid electrolyzer based on the date forecast result of the target day. For another example, the first duration may also be N days (N is an integer greater than or equal to 2), then S81 performs a forecast every few days, and each forecast result can be used to formulate a scheduling plan for the hybrid electrolyzer for the next few days.

[0136] Regardless of the length of the first period, S81 will make predictions before the target date (i.e., day-ahead predictions) and formulate a hybrid electrolyzer scheduling plan based on the prediction results.

[0137] S82: Based on the power forecast value of each day within the first time period, the hybrid electrolysis hydrogen production system scheduling method is respectively executed, and a scheduling plan for the hybrid electrolyzer is preliminarily formulated according to the power allocation result.

[0138] The scheduling plan includes how many of each type of electrolytic hydrogen production equipment should be prepared and in a ready state, that is, ready to be connected to new energy power generation at any time.

[0139] S83: Predict the power generation capacity of renewable energy in real time on each target day.

[0140] Real-time prediction of renewable energy power generation means that the time difference between the time corresponding to the most recent predicted value of renewable energy power generation and the predicted time is less than the third time period. The third time period can be a shorter time period, for example, the real-time prediction can be a 20-minute prediction, a 10-minute prediction, etc.

[0141] S84: Execute the hybrid electrolysis hydrogen production system scheduling method based on the real-time prediction value of the new energy power generation power, and adjust the input power of various electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system according to the power allocation result.

[0142] S84 may include reducing or increasing the input power of the electrolytic hydrogen production equipment that has been connected to the renewable energy power generation, connecting the electrolytic hydrogen production equipment that was not originally connected to the renewable energy power generation, or cutting off the electrolytic hydrogen production equipment that has originally been connected to the renewable energy power generation from the power supply line of the renewable energy power generation.

[0143] In some embodiments, Fig.13 As shown, before S84, the following S85 and S86 are also included.

[0144] S85: On each target day, predict the power generation of new energy once at a second time interval to obtain a power prediction sequence value at midday.

[0145] The second time period is greater than the third time period and less than 12 hours. For example, the second time period may be 3 hours, 2 hours, etc. That is, during the day, the power generation of new energy is predicted at a smaller time scale, and the scheduling plan is adjusted according to the prediction results.

[0146] S86: Execute the hybrid electrolysis hydrogen production system scheduling method based on the power prediction sequence values ​​at midday, and adjust the scheduling plan of the hybrid electrolyzer according to the power allocation result.

[0147] Adjust the scheduling plan for the hybrid electrolyzer, including timely replenishing the corresponding electrolytic hydrogen production equipment when the number of various types of electrolytic hydrogen production equipment in a ready state in the preliminary scheduling plan is insufficient.

[0148] Through the day-ahead forecast, daily medium- and short-term forecast, and real-time forecast described in S81 to S86 above, the scheduling plan of the hybrid electrolyzer can be gradually improved, so that no major changes need to be made when the scheduling is officially implemented, and the volatility and intermittent nature of renewable energy power generation can be promptly adapted to timely adjust the coordination of various types of electrolytic hydrogen production equipment.

[0149] This specification provides a hybrid electrolysis hydrogen production system scheduling device, which can be used to implement the above hybrid electrolysis hydrogen production system scheduling method. Fig.14 As shown, the apparatus includes a first acquisition unit 110 , a second acquisition unit 120 , a first matching unit 130 , a first allocation unit 140 and a second allocation unit 150 .

[0150] The first acquisition unit 110 is used to acquire the power prediction sequence value of the new energy power generation.

[0151] The second acquisition unit 120 is used to acquire the scale templates of the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment, wherein the scale templates include the maximum power change rate, the minimum power value and / or the maximum power value.

[0152] The first matching unit 130 is used to match the scale template of the first type of hydrogen production by electrolysis equipment with each power prediction value in the power prediction sequence value.

[0153] The first allocation unit 140 is used to allocate the first part of power that successfully matches each power prediction value to the first type of hydrogen production by electrolysis equipment for processing.

[0154] The second allocation unit 150 is used to allocate the second part of the power that is not successfully matched in each power prediction value to the second type of hydrogen production by electrolysis equipment for processing.

[0155] In some embodiments, the first type of hydrogen production by electrolysis equipment responds more slowly to input power changes than the second type of hydrogen production by electrolysis equipment, and the use cost of the first type of hydrogen production by electrolysis equipment is lower than that of the second type of hydrogen production by electrolysis equipment.

[0156] In some embodiments, the second type of hydrogen production by electrolysis equipment is a collection of multiple hydrogen production by electrolysis equipment other than the first type of hydrogen production by electrolysis equipment.

[0157] In some embodiments, the second type of electrolytic hydrogen production equipment includes a first subtype of electrolytic hydrogen production equipment and a second subtype of electrolytic hydrogen production equipment. The second distribution unit includes a first matching subunit, a first distribution subunit and a second distribution subunit.

[0158] The first matching subunit is used to match the scale template of the first subtype of electrolytic hydrogen production equipment with the second part of power respectively.

[0159] The first allocation subunit is used to allocate the successfully matched first sub-power in the second part of power to the first sub-type electrolytic hydrogen production equipment for processing.

[0160] The second allocation subunit is used to allocate the unsuccessfully matched second sub-power in the second part of power to the second sub-category of hydrogen production by electrolysis equipment for processing.

[0161] In some embodiments, the use cost of the first sub-category of hydrogen production by electrolysis equipment is lower than that of the second sub-category of hydrogen production by electrolysis equipment.

[0162] In some embodiments, the scale template includes a maximum power change rate and a minimum power value; the device also includes a first calculation unit, a first determination unit and a second determination unit.

[0163] The first calculation unit is used to calculate the maximum power and the minimum power that the first type of hydrogen production by electrolysis equipment can bear as a whole according to the maximum change rate of each first type of hydrogen production by electrolysis equipment.

[0164] The first determining unit is used to determine that the power matching of the maximum power value part in the power value to be matched is successful when the power value to be matched is greater than or equal to the maximum power value.

[0165] The second determination unit is used to control the energy storage device to perform an energy release operation to supply energy to the first type of electrolytic hydrogen production equipment when the power value to be matched is less than or equal to the minimum power value.

[0166] When the power value to be matched is between the minimum power value and the maximum power value, the first matching unit matches the scale template of the first type of hydrogen production by electrolysis equipment with each power prediction value in the power prediction sequence value.

[0167] In some embodiments, the first matching unit includes: a second matching sub-unit, used to match the scale template of each first-type electrolytic hydrogen production equipment with the remaining power prediction value in a preset order; the remaining power prediction value is the difference between the power prediction value and the power allocation amount of each matched first-type electrolytic hydrogen production equipment.

[0168] In some embodiments, the first matching unit includes: a third matching sub-unit, which is used to gradually increase or decrease the proposed allocated power value or power ramp rate of each first-class hydrogen production equipment under the constraint of the scale template of the first-class hydrogen production equipment, calculate the maximum value of the proposed allocated power value of each first-class hydrogen production equipment without exceeding the limit of the scale template, and take the sum of the maximum values ​​of the proposed allocated power values ​​of each first-class hydrogen production equipment as the first part of the power successfully allocated in the power value to be matched.

[0169] In some embodiments, the apparatus further includes a second computing unit, a third computing unit, and a second matching unit.

[0170] The second calculation unit is used to calculate the minimum power required by the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment according to the scale template of the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment.

[0171] The third calculation unit is used to calculate the power difference between the power prediction value and the minimum power required by the first type of hydrogen production by electrolysis equipment and the second type of hydrogen production by electrolysis equipment.

[0172] The second matching unit is used to match the scale template of the first electrolytic hydrogen production equipment among the remaining first-type electrolytic hydrogen production equipment with the power difference; or, use the power difference as the power to be matched.

[0173] Correspondingly, the second allocation unit allocates the minimum power required by the second type of hydrogen production by electrolysis equipment and the second part of the power that fails to match in each power prediction value to the second type of hydrogen production by electrolysis equipment for processing.

[0174] In some embodiments, the first type of electrolysis hydrogen production equipment includes alkaline electrolysis hydrogen production equipment, and the second type of electrolysis hydrogen production equipment includes proton exchange membrane electrolysis hydrogen production equipment.

[0175] In some embodiments, the scale template of the alkaline electrolysis hydrogen production equipment is: the maximum power change rate ranges from 0.3% Pe / s to 3% Pe / s, and the minimum power value is 40% Pe to 60% Pe; the scale template of the proton exchange membrane electrolysis hydrogen production equipment is: the maximum power change rate is 30% Pe to 50% Pe, and the minimum power value is 5% Pe to 20% Pe.

[0176] This specification provides a hybrid electrolysis hydrogen production system scheduling execution device, which can be used to implement the above-mentioned hybrid electrolysis hydrogen production system scheduling execution method. Fig.15 As shown, the device includes a first prediction unit 210, a plan formulation unit 220, a second prediction unit 230 and a plan execution unit 240.

[0177] The first prediction unit 210 is used to predict the new energy power generation of each day within the first time period at intervals of the first time period to obtain a daily power prediction sequence value.

[0178] The planning unit 220 is used to execute any of the above-mentioned hybrid electrolysis hydrogen production system scheduling methods based on the power forecast value of each day within the first time period, and preliminarily formulate a scheduling plan for the hybrid electrolyzer according to the power allocation result.

[0179] The second prediction unit 230 is used to predict the new energy power generation power in real time on each target day.

[0180] The plan execution unit 240 is used to execute any of the above-mentioned hybrid electrolysis hydrogen production system scheduling methods based on the real-time predicted value of the new energy power generation power, and adjust the input power of various types of electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system according to the power allocation result.

[0181] In some embodiments, the apparatus further comprises a third prediction unit and a plan adjustment unit.

[0182] The third prediction unit is used to predict the new energy power generation power once at a second time interval on each target day to obtain a power prediction sequence value at midday.

[0183] The plan adjustment unit is used to execute any of the above-mentioned hybrid electrolysis hydrogen production system scheduling methods based on the power prediction sequence value at midday, and adjust the scheduling plan of the hybrid electrolyzer according to the power allocation result.

[0184] The description and functions of the above-mentioned devices can be understood by referring to the contents of the corresponding method part, and will not be repeated here.

[0185] The embodiment of the present invention further provides an electronic device, such as Fig.16 As shown, the electronic device may include a processor 1601 and a memory 1602, wherein the processor 1601 and the memory 1602 may be connected via a bus or other means. Fig.16 The example of connecting through bus is taken in the following.

[0186] The processor 1601 may be a central processing unit (CPU). The processor 1601 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or a combination of the above chips.

[0187] The memory 1602 is a non-transitory computer-readable storage medium that can be used to store non-transitory software programs, non-transitory computer executable programs and modules, such as the program instructions / modules corresponding to the hybrid electrolysis hydrogen production system scheduling method in the embodiment of the present invention (for example Fig.14 The first acquisition unit 110, the second acquisition unit 120, the first matching unit 130, the first allocation unit 140 and the second allocation unit 150 shown, or Fig.15 The processor 1601 executes various functional applications and data processing of the processor by running the non-transient software programs, instructions and modules stored in the memory 1602, that is, the hybrid electrolysis hydrogen production system scheduling method or the hybrid electrolysis hydrogen production system scheduling execution method in the above method embodiment is implemented.

[0188] The memory 1602 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required by at least one function; the data storage area may store data created by the processor 1601, etc. In addition, the memory 1602 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other non-volatile solid-state storage device. In some embodiments, the memory 1602 may optionally include a memory remotely arranged relative to the processor 1601, and these remote memories may be connected to the processor 1601 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0189] The one or more modules are stored in the memory 1602, and when executed by the processor 1601, the hybrid electrolysis hydrogen production system scheduling method or the hybrid electrolysis hydrogen production system scheduling execution method in the above-mentioned embodiment is executed.

[0190] The specific details of the above electronic device can be understood by referring to the corresponding descriptions and effects in the method embodiment, and will not be repeated here.

[0191] The present specification also provides a computer storage medium storing computer program instructions, which, when executed, implement the steps of the above-mentioned hybrid electrolysis hydrogen production system scheduling method or hybrid electrolysis hydrogen production system scheduling execution method.

[0192] The present specification also provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of the above-mentioned hybrid electrolysis hydrogen production system scheduling method or hybrid electrolysis hydrogen production system scheduling execution method.

[0193] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program, and the program can be stored in a computer-readable storage medium, and when the program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, the storage medium can be a disk, an optical disk, a read-only memory (ROM), a random access memory (RAM), a flash memory, a hard disk drive (HDD) or a solid-state drive (SSD), etc.; the storage medium can also include a combination of the above-mentioned types of memory.

[0194] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0195] The systems, devices, modules or units described in the above embodiments may be implemented by computer chips or entities, or by products with certain functions.

[0196] For the convenience of description, the above device is described in various units according to their functions. Of course, when implementing the present application, the functions of each unit can be implemented in the same or multiple software and / or hardware.

[0197] It can be known from the description of the above implementation methods that those skilled in the art can clearly understand that the present application can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present application can be essentially or partly contributed to the prior art in the form of a software product, which can be stored in a storage medium such as ROM / RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute certain parts of the methods of each implementation method of the present application.

[0198] The present application can be used in many general or special computer system environments or configurations, such as personal computers, server computers, handheld or portable devices, tablet devices, multiprocessor systems, microprocessor-based systems, set-top boxes, programmable consumer electronic devices, network PCs, minicomputers, mainframe computers, distributed computing environments including any of the above systems or devices, etc.

[0199] The present application may be described in the general context of computer-executable instructions executed by a computer, such as program modules. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. The present application may also be practiced in distributed computing environments where tasks are performed by remote processing devices connected through a communication network. In a distributed computing environment, program modules may be located in local and remote computer storage media, including storage devices.

[0200] Although the present application has been described through embodiments, those skilled in the art will appreciate that there are many modifications and variations to the present application without departing from the spirit of the present application, and it is intended that the appended claims include these modifications and variations without departing from the spirit of the present application.

Claims

1. A hybrid electrolysis hydrogen production system scheduling method, characterized in that: include: Obtain the power forecast sequence value of renewable energy power generation; Obtaining scale templates of the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment, wherein the scale templates include a maximum power change rate, a minimum power value and / or a maximum power value; the first type of electrolytic hydrogen production equipment has a slower response speed to input power changes than the second type of electrolytic hydrogen production equipment; Matching the scale template of the first type of electrolytic hydrogen production equipment with each power prediction value in the power prediction sequence value respectively; Allocating a first portion of power that successfully matches each power prediction value to the first type of electrolytic hydrogen production equipment for processing; The second part of the power that fails to match the respective power prediction values ​​is allocated to the second type of hydrogen production by electrolysis equipment for processing.

2. The method according to claim 1, characterized in that The use cost of the first type of electrolytic hydrogen production equipment is lower than that of the second type of electrolytic hydrogen production equipment.

3. The method according to claim 1, characterized in that: The second type of electrolytic hydrogen production equipment is a collection of multiple electrolytic hydrogen production equipment except the first type of electrolytic hydrogen production equipment.

4. The method according to claim 3, characterized in that The second type of electrolytic hydrogen production equipment includes the first sub-type electrolytic hydrogen production equipment and the second sub-type electrolytic hydrogen production equipment; allocating the second part of the power that fails to match in each power prediction value to the second type of electrolytic hydrogen production equipment for processing, including: Matching the scale templates of the first sub-category of electrolytic hydrogen production equipment with the second part of power respectively; Allocating the successfully matched first sub-power in the second part of power to the first sub-type of electrolytic hydrogen production equipment for processing; The unsuccessfully matched second sub-power in the second part of the power is allocated to the second sub-category of hydrogen production electrolysis equipment for processing.

5. The method according to claim 4, characterized in that The use cost of the first subcategory of hydrogen production by electrolysis equipment is lower than that of the second subcategory of hydrogen production by electrolysis equipment.

6. The method according to claim 1, characterized in that The scale template includes a maximum power change rate and a minimum power value; before matching the scale template of the first type of electrolytic hydrogen production equipment with each power prediction value in the power prediction sequence value, it also includes: Calculate the maximum power and minimum power that the first-class electrolytic hydrogen production equipment can bear as a whole according to the maximum change rate of each first-class electrolytic hydrogen production equipment; When the power value to be matched is greater than or equal to the maximum power value, determining that the power matching of the maximum power value part in the power value to be matched is successful; When the power value to be matched is less than or equal to the minimum power value, controlling the energy storage device to perform an energy release operation to supply the first type of electrolytic hydrogen production equipment; When the power value to be matched is between the minimum power value and the maximum power value, matching of the scale template of the first type of hydrogen production by electrolysis equipment with each power prediction value in the power prediction sequence value is performed.

7. The method according to claim 1, characterized in that Matching the scale template of the first type of electrolytic hydrogen production equipment with each power prediction value in the power prediction sequence value respectively includes: The scale templates of each first-category hydrogen production equipment by electrolysis are matched with the remaining power prediction value in a preset order; the remaining power prediction value is the difference between the power prediction value and the power allocation amount of each matched first-category hydrogen production equipment by electrolysis.

8. The method according to claim 1, characterized in that Matching the scale template of the first type of electrolytic hydrogen production equipment with each power prediction value in the power prediction sequence value respectively includes: Under the constraints of the scale template of the first type of hydrogen production by electrolysis equipment, the proposed allocated power value or the power ramp rate of each first type of hydrogen production by electrolysis equipment is gradually increased or decreased, and the maximum value of the proposed allocated power value of each first type of hydrogen production by electrolysis equipment is calculated without exceeding the limit of the scale template. The sum of the maximum values ​​of the proposed allocated power values ​​of each first type of hydrogen production by electrolysis equipment is taken as the first part of the power successfully allocated in the power value to be matched.

9. The method according to claim 1, characterized in that: Before matching the scale template of the first type of electrolytic hydrogen production equipment with each power prediction value in the power prediction sequence value, the method further includes: Calculate the minimum power required by the first type of hydrogen production equipment and the second type of hydrogen production equipment according to the scale templates of the first type of hydrogen production equipment and the second type of hydrogen production equipment; Calculate the power difference between the power prediction value and the minimum power required by the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment; Matching the scale template of the first electrolytic hydrogen production equipment among the remaining first-type electrolytic hydrogen production equipment with the power difference; or using the power difference as the power to be matched; Correspondingly, the second part of the power that fails to match in each power prediction value is allocated to the second type of electrolytic hydrogen production equipment for processing, including: allocating the minimum power required by the second type of electrolytic hydrogen production equipment and the second part of the power that fails to match in each power prediction value to the second type of electrolytic hydrogen production equipment for processing.

10. The method according to claim 1, characterized in that The first type of electrolysis hydrogen production equipment includes alkaline electrolysis hydrogen production equipment, and the second type of electrolysis hydrogen production equipment includes proton exchange membrane electrolysis hydrogen production equipment.

11. The method according to claim 10, characterized in that The scale template of the alkaline electrolysis hydrogen production equipment is: the maximum value of the power change rate ranges from 0.3%Pe / s to 3%Pe / s, and the minimum power value is 40%Pe to 60%Pe; The scale template of the proton exchange membrane electrolysis hydrogen production equipment is: the maximum power change rate is 30%Pe~50%Pe, and the minimum power is 5%Pe~20%Pe; Where Pe represents the rated input power.

12. A method for scheduling and executing a hybrid electrolysis hydrogen production system, characterized in that: include: Predict the renewable energy power generation of each day within the first time period at every first time period to obtain a daily power prediction sequence value; Based on the power forecast values ​​of each day within the first time period, respectively executing the hybrid electrolysis hydrogen production system scheduling method described in any one of claims 1 to 11, and preliminarily formulating a scheduling plan for the hybrid electrolyzer according to the power allocation result; Real-time forecast of renewable energy generation capacity on each target day; The hybrid electrolysis hydrogen production system scheduling method described in any one of claims 1 to 11 is executed based on the real-time predicted value of the new energy power generation power, and the input power of various types of electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system is adjusted according to the power allocation result.

13. The method according to claim 12, characterized in that Before scheduling various electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system according to the power allocation results, it also includes: On each target day, the renewable energy power generation is predicted once every second period to obtain the power prediction sequence value at midday; The hybrid electrolysis hydrogen production system scheduling method according to any one of claims 1 to 11 is respectively executed based on the power prediction sequence value in the day, and the scheduling plan of the hybrid electrolyzer is adjusted according to the power allocation result.

14. A hybrid electrolysis hydrogen production system scheduling device, characterized in that: include: A first acquisition unit is used to acquire a power prediction sequence value of renewable energy power generation; A second acquisition unit is used to acquire a scale template of the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment, wherein the scale template includes a maximum power change rate, a minimum power value and / or a maximum power value; A first matching unit is used to match the scale template of the first type of electrolytic hydrogen production equipment with each power prediction value in the power prediction sequence value; A first allocation unit is used to allocate a first part of power that successfully matches each power prediction value to the first type of electrolytic hydrogen production equipment for processing; The second allocation unit is used to allocate the second part of the power that is not successfully matched in each power prediction value to the second type of electrolytic hydrogen production equipment for processing.

15. A hybrid electrolysis hydrogen production system scheduling execution device, characterized in that: include: A first prediction unit is used to predict the renewable energy power generation of each day within the first time period at intervals of a first time period to obtain a daily power prediction sequence value; A planning unit, configured to execute the hybrid electrolysis hydrogen production system scheduling method according to any one of claims 1 to 11 based on the power forecast value of each day within the first time period, and preliminarily formulate a scheduling plan for the hybrid electrolyzer according to the power allocation result; The second prediction unit is used to predict the power generation of renewable energy in real time on each target day; A plan execution unit is used to execute the hybrid electrolysis hydrogen production system scheduling method according to any one of claims 1 to 11 based on the real-time predicted value of the new energy power generation power, and adjust the input power of various types of electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system according to the power allocation result.

16. An electronic device, characterized in that: include: A memory and a processor, wherein the processor and the memory are communicatively connected to each other, the memory stores computer instructions, and the processor implements the method described in any one of claims 1 to 13 by executing the computer instructions.

17. A computer storage medium, characterized in that: The computer storage medium stores computer program instructions, and when the computer program instructions are executed, the steps of the method according to any one of claims 1 to 13 are implemented.

18. A computer program product, characterized in that The invention comprises a computer program, which implements the steps of the method according to any one of claims 1 to 13 when being executed by a processor.

Images