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

Abstract

The specification provides a mixed electrolytic hydrogen production system scheduling and scheduling execution method, device and electronic equipment. According to each prediction value of the new energy power generation power, a corresponding allocatable to-be-matched power of the electrolytic hydrogen production equipment is determined. The scale template of the first type of electrolytic hydrogen production equipment is matched with the to-be-matched power respectively. The first part of the power matched successfully is distributed to the first type of electrolytic hydrogen production equipment for processing. The second part of the power matched unsuccessfully is distributed to the second type of electrolytic hydrogen production equipment which has a faster response speed to input power change for processing. The scheme establishes a matching bridge between the electrolytic cell load and the new energy fluctuation power through the scale template, realizes the optimized adaptation between the fluctuating new energy output and the electrolytic cell consumption capacity, can flexibly respond to the rapidly changing new energy power input, reduces the use cost of the electrolytic hydrogen production system, improves the hydrogen production efficiency, and realizes the maximization of new energy efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electrolytic hydrogen production equipment scheduling, in particular to a mixed electrolytic hydrogen production system scheduling method and device and an electronic device. BACKGROUND

[0002] Electrolytic hydrogen production technology, as an efficient energy conversion method, provides an effective way for flexible consumption of renewable energy. Electrolytic hydrogen production equipment includes alkaline electrolyzer (ALK), proton exchange membrane electrolyzer (PEM) and solid oxide electrolysis cell (SOEC). ALK, as the oldest and most mature electrolytic hydrogen production technology, is favored for its simple operation and low cost. However, ALK has a long cold start-up time and a relatively slow response speed to input power changes, which makes it less adaptable when facing fluctuating renewable energy such as wind and light. PEM can start quickly and respond quickly, and PEM can flexibly respond to rapidly changing renewable energy power inputs, but its high equipment cost is the main bottleneck restricting its large-scale application in the field of renewable energy hydrogen production. SOEC can utilize high-temperature waste heat to achieve efficient hydrogen production, with high system energy efficiency. However, high-temperature operation requires strict material and sealing technology, has a long start-up time and high investment cost.

[0003] The electrical energy used by electrolytic hydrogen production equipment is usually wind power and photovoltaic power. These electrical energies are usually used to supply loads first, and the remaining electrical energy is used to supply electrolytic hydrogen production equipment. Due to the volatility of wind power and photovoltaic power and the volatility of load power, the power used to supply electrolytic hydrogen production equipment has fluctuating and intermittent characteristics, which is poorly matched with the working load characteristics of electrolytic cell hydrogen production equipment, thus cannot effectively convert new energy, greatly restricting the efficient use and conversion of wind and light resources, not only seriously affecting the economy of the system, but also adversely affecting the source-load balance.

[0004] To this end, the existing technical solutions usually include: 1. Setting up energy storage equipment to store fluctuating power; 2. Developing flexible electrolyzers that can quickly adapt to changes in external power; 3. Building a system containing multiple electrolyzers, intelligently regulating the number of modules participating in work according to power fluctuations, such as reducing the number of modules in operation during power valleys to maintain stable hydrogen production, and increasing the number of modules during power surpluses to increase hydrogen production capacity.

[0005] The above-mentioned various methods can solve the influence of input power fluctuation on electrolytic hydrogen production equipment, but cannot balance the high efficiency and low cost of electrolytic hydrogen production. SUMMARY

[0006] This manual provides a method, apparatus, and electronic equipment for scheduling and executing a hybrid electrolysis hydrogen production system, in order to solve the problem that existing hybrid electrolysis hydrogen production systems cannot simultaneously achieve high efficiency and low cost in electrolysis hydrogen production.

[0007] To address the aforementioned technical problems, this specification provides a first aspect of a method for scheduling a hybrid electrolysis hydrogen production system, comprising: acquiring a power prediction sequence value of new energy power generation; acquiring scale templates for a first type of electrolysis hydrogen production equipment and a second type of electrolysis 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 electrolysis hydrogen production equipment responds to input power changes more slowly 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; allocating a first portion of the successfully matched power from each power prediction value to the first type of electrolysis hydrogen production equipment for processing; and allocating a second portion of the unmatched power from each power prediction value to the second type of electrolysis hydrogen production equipment for processing.

[0008] In some embodiments, the cost of using 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 electrolytic hydrogen production equipment is a collection of various electrolytic hydrogen production equipment other than the first type of electrolytic hydrogen production equipment.

[0010] 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 portion of power that fails to match in each power prediction value is allocated to the second type of electrolytic hydrogen production equipment for processing, including: matching the scale template of the first subtype of electrolytic hydrogen production equipment with the second portion of power respectively; allocating the first sub-power that successfully matches in the second portion of power to the first subtype of electrolytic hydrogen production equipment for processing; and allocating the second sub-power that fails to match in the second portion of power to the second subtype of electrolytic hydrogen production equipment for processing.

[0011] In some embodiments, the cost of using the first sub-category of electrolytic hydrogen production equipment is lower than that of the second sub-category of electrolytic hydrogen production 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 electrolytic hydrogen production device with each power prediction value in the power prediction sequence respectively, further comprising: calculating the maximum power value and the minimum power value that the first type of electrolytic hydrogen production device as a whole can bear according to the maximum change rate of each first type of electrolytic hydrogen production device; in the case that the to-be-matched power value is greater than or equal to the maximum power value, determining that the matching of the maximum power value part in the to-be-matched power value is successful; in the case that the to-be-matched power value is less than or equal to the minimum power value, controlling the energy storage device to perform energy release operation for the first type of electrolytic hydrogen production device; in the case that the to-be-matched power value is between the minimum power value and the maximum power value, performing matching of the scale template of the first type of electrolytic hydrogen production device with each power prediction value in the power prediction sequence respectively.

[0013] In some embodiments, matching the scale template of the first type of electrolytic hydrogen production device with each power prediction value in the power prediction sequence respectively includes: matching the scale template of each first type of electrolytic hydrogen production device with the remaining power prediction value in a predetermined order; the remaining power prediction value is the difference between the power prediction value and the power allocation amount of each first type of electrolytic hydrogen production device that has been matched.

[0014] In some embodiments, matching the scale template of the first type of electrolytic hydrogen production device with each power prediction value in the power prediction sequence respectively includes: gradually increasing or decreasing the tentative power value or the power ramping rate of each first type of electrolytic hydrogen production device under the constraint of the scale template of the first type of electrolytic hydrogen production device, calculating the maximum value of the tentative power value of each first type of electrolytic hydrogen production device without exceeding the scale template limit, and taking the sum of the maximum values of the tentative power values of each first type of electrolytic hydrogen production device as the first part of the power that is successfully allocated in the to-be-matched power value.

[0015] In some embodiments, before matching the scale template of the first type of electrolytic hydrogen production device with each power prediction value in the power prediction sequence respectively, further comprising: calculating the minimum power required by the first type of electrolytic hydrogen production device and the second type of electrolytic hydrogen production device according to the scale templates of the first type of electrolytic hydrogen production device and the second type of electrolytic hydrogen production device; calculating the power difference between the power prediction value and the minimum power required by the first type of electrolytic hydrogen production device and the second type of electrolytic hydrogen production device; matching the scale template of the first electrolytic hydrogen production device in the remaining first type of electrolytic hydrogen production device with the power difference; or taking the power difference as the power to be matched; accordingly, the second part of the power prediction value that fails to match is allocated to the second type of electrolytic hydrogen production device processing, comprising: allocating the minimum power required by the second type of electrolytic hydrogen production device and the second part of the power prediction value that fails to match to the second type of electrolytic hydrogen production device processing.

[0016] In some embodiments, the first type of electrolytic hydrogen production device comprises an alkaline electrolytic hydrogen production device, and the second type of electrolytic hydrogen production device comprises a proton exchange membrane electrolytic hydrogen production device.

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

[0018] The second aspect of the specification provides a mixed electrolytic hydrogen production system scheduling execution method, comprising: predicting the new energy power generation of each day within a first time interval every first time interval to obtain a power prediction sequence value of each day; based on the power prediction value of each day within the first time interval, executing the mixed electrolytic hydrogen production system scheduling method of any one of the first aspect to preliminarily formulate a scheduling plan of the mixed electrolytic cell; predicting the new energy power generation in real time on each target day; based on the real-time prediction value of the new energy power generation, executing the mixed electrolytic hydrogen production system scheduling method of any one of the first aspect to adjust the input power of each type of electrolytic hydrogen production device in the mixed electrolytic hydrogen production system according to the power distribution result.

[0019] In some embodiments, before scheduling each type of electrolytic hydrogen production device in the mixed electrolytic hydrogen production system according to the power distribution result, further comprising: predicting the new energy power generation once every second time interval on each target day to obtain a power prediction sequence value in the day; based on the power prediction sequence value in the day, executing the mixed electrolytic hydrogen production system scheduling method of any one of the first aspect to adjust the scheduling plan of the mixed electrolytic cell according to the power distribution result.

[0020] The third aspect of the specification provides a mixed electrolytic hydrogen production system scheduling device, comprising: a first acquisition unit configured to acquire a power prediction sequence value of new energy power generation; a second acquisition unit configured to acquire a scale template of a first type of electrolytic hydrogen production device and a second type of electrolytic hydrogen production device, the scale template comprising a maximum power change rate, and a minimum power value and / or a maximum power value; the first type of electrolytic hydrogen production device has a slower response speed to input power change than the second type of electrolytic hydrogen production device; a first matching unit configured to match the scale template of the first type of electrolytic hydrogen production device with each power prediction value in the power prediction sequence value respectively; a first distribution unit configured to distribute a first part of power matching successfully in each power prediction value to the first type of electrolytic hydrogen production device for processing; and a second distribution unit configured to distribute a second part of power not matching successfully in each power prediction value to the second type of electrolytic hydrogen production device for processing.

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

[0022] In some embodiments, the second type of electrolytic hydrogen production device is a set of multiple electrolytic hydrogen production devices other than the first type of electrolytic hydrogen production device.

[0023] In some embodiments, the second type of electrolytic hydrogen production device includes a first subclass of electrolytic hydrogen production devices and a second subclass of electrolytic hydrogen production devices; the second distribution unit includes: a first matching subunit configured to match the scale template of the first subclass of electrolytic hydrogen production devices with the second part of power respectively; a first distribution subunit configured to distribute a first part of power matching successfully in the second part of power to the first subclass of electrolytic hydrogen production devices for processing; and a second distribution subunit configured to distribute a second part of power not matching successfully in the second part of power to the second subclass of electrolytic hydrogen production devices for processing.

[0024] In some embodiments, the use cost of the first subclass of electrolytic hydrogen production devices is lower than that of the second subclass of electrolytic hydrogen production devices.

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

[0026] In some embodiments, the first matching unit includes: a second matching sub-unit configured to match the scale template of each first type of electrolytic hydrogen production equipment with a 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 of electrolytic hydrogen production equipment.

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

[0028] In some embodiments, the device further includes: a second calculation unit configured to calculate the minimum power required by the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment according to the scale templates of the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment; a third calculation unit configured to calculate a 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; and a second matching unit configured to match the scale template of a first electrolytic hydrogen production equipment in the remaining first type of electrolytic hydrogen production equipment with the power difference, or take the power difference as a to-be-matched power; accordingly, the second allocation unit allocates the second part of power that is unsuccessfully matched in each power prediction value to the second type of electrolytic hydrogen production equipment for processing.

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

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

[0031] The fourth aspect of the specification provides a mixed electrolysis hydrogen production system scheduling execution device, comprising: a first prediction unit configured to predict new energy power generation of each day within a first time interval every first time interval to obtain a power prediction sequence value of each day; a plan making unit configured to execute the mixed electrolysis hydrogen production system scheduling method of any one of the first aspect based on the power prediction value of each day within the first time interval, and preliminarily make a scheduling plan of the mixed electrolysis cell according to the power distribution result; a second prediction unit configured to predict new energy power generation in real time on each target day; and a plan execution unit configured to execute the mixed electrolysis hydrogen production system scheduling method of any one of the first aspect based on the real-time prediction value of the new energy power generation, and adjust the input power of each type of electrolysis hydrogen production equipment in the mixed electrolysis hydrogen production system according to the power distribution result.

[0032] In some embodiments, the device further comprises: a third prediction unit configured to predict new energy power generation once every second time interval on each target day to obtain a power prediction sequence value in the day; and a plan adjustment unit configured to execute the mixed electrolysis hydrogen production system scheduling method of any one of the first aspect based on the power prediction sequence value in the day, and adjust the scheduling plan of the mixed electrolysis cell according to the power distribution result.

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

[0034] The sixth aspect of the specification provides a computer storage medium, which stores computer program instructions, and the computer program instructions implement the steps of the method of any one of the first aspect when executed.

[0035] The seventh aspect of the specification provides a computer program product, which contains a computer program, and the computer program implements the steps of the method of any one of the first aspect when executed by a processor.

[0036] The mixed electrolytic hydrogen production system scheduling and scheduling execution method, device and electronic equipment provided by the specification introduce a scale template for each electrolytic hydrogen production equipment, determine the corresponding allocatable to-be-matched power for the electrolytic hydrogen production equipment according to each prediction value of the new energy power generation power, match the scale template of the first type of electrolytic hydrogen production equipment with the to-be-matched power respectively, allocate the first part of power matched successfully in the to-be-matched power to the first type of electrolytic hydrogen production equipment for processing, and allocate the second part of power not matched successfully in the to-be-matched power to the second type of electrolytic hydrogen production equipment for processing, wherein the response speed of the first type of electrolytic hydrogen production equipment to the input power change is slower than that of the second type of electrolytic hydrogen production equipment. The scheme proposes a scale template reflecting the characteristics of different electrolytic hydrogen production equipment, which can establish a matching bridge between the electrolytic cell load and the fluctuating new energy power, realize the optimized adaptation between the fluctuating new energy output and the electrolytic cell consumption capacity, thereby improving the consumption capacity of new energy, reducing the amount of abandoned wind and light, and improving the hydrogen production yield.

[0037] The scheme can prioritize the allocation of input power to the first type of electrolytic cell for processing, and the part of the input power of the second type of electrolytic hydrogen production equipment with stronger fluctuation is faster in response to the change of input power than the flexible electrolytic cell. That is, the scheme can flexibly respond to the rapidly changing new energy power input while reducing the use cost of the electrolytic hydrogen production system, improving the hydrogen production efficiency, and maximizing the efficiency of new energy. BRIEF DESCRIPTION OF DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the description of the embodiments or the prior art will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0039] Figure 1 A schematic diagram of power supply for electrolytic hydrogen production system;

[0040] Figure 2 A flowchart of a mixed electrolytic hydrogen production system scheduling method provided by the specification;

[0041] Figure 3 A flowchart of another mixed electrolytic hydrogen production system scheduling method provided by the specification;

[0042] Figure 4 A flowchart of another mixed electrolytic hydrogen production system scheduling method provided by the specification;

[0043] Figure 5A flow chart of another scheduling method of a hybrid electrolytic hydrogen production system provided in the present specification;

[0044] Figure 6 A flow chart of another scheduling method of a hybrid electrolytic hydrogen production system provided in the present specification;

[0045] Figure 7 A flow chart of another scheduling method of a hybrid electrolytic hydrogen production system provided in the present specification;

[0046] Figure 8 A flow chart of another scheduling method of a hybrid electrolytic hydrogen production system provided in the present specification;

[0047] Figure 9 A flow chart of another scheduling method of a hybrid electrolytic hydrogen production system provided in the present specification;

[0048] Figure 10 A flow chart of another scheduling method of a hybrid electrolytic hydrogen production system provided in the present specification;

[0049] Figure 11 A flow chart of a way of allocating a second part of power that is not successfully matched in each power prediction value to the second type of electrolytic hydrogen production equipment processing;

[0050] Figure 12 A flow chart of a scheduling execution method of a hybrid electrolytic hydrogen production system provided in the present specification;

[0051] Figure 13 A flow chart of another scheduling execution method of a hybrid electrolytic hydrogen production system provided in the present specification;

[0052] Figure 14 A schematic diagram of a scheduling device of a hybrid electrolytic hydrogen production system provided in the present specification;

[0053] Figure 15 A schematic diagram of a scheduling execution device of a hybrid electrolytic hydrogen production system provided in the present specification;

[0054] Figure 16 A structural schematic diagram of an electronic device provided in the present specification. DETAILED DESCRIPTION

[0055] In order to enable persons skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described in the present application with reference to the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art without creative labor should belong to the scope of protection of the present application.

[0056] The present specification provides a mixed electrolytic hydrogen production system scheduling method, which is used for an electrolytic hydrogen production system containing at least two electrolytic hydrogen production devices, and the at least two electrolytic hydrogen production devices are different in terms of use cost, response speed to input power variation, etc.

[0057] The electrolytic hydrogen production device is a general term for devices for producing hydrogen, which can convert raw materials such as hydrogen-containing compounds or water into hydrogen by various chemical or physical methods. Figure 1 For the power supply schematic diagram of the electrolytic hydrogen production system containing at least two electrolytic hydrogen production devices, the electric energy of wind power generation and photovoltaic power generation is mainly used for supplying loads, and the remaining electric energy of the load supply is supplied to the electrolytic hydrogen production system.

[0058] As shown in Figure 2 The mixed electrolytic hydrogen production system scheduling method provided by the present specification includes the following S10 to S50.

[0059] S10: Obtain a power prediction sequence value of new energy power generation.

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

[0061] Based on the regularity on the above-mentioned macro time scale, the power of new energy power generation can be predicted, and then the overall scheduling scheme of the mixed electrolytic hydrogen production system is formulated according to the prediction result; or, combining the regularity on the macro time scale with the historical power generation power, the real-time power generation power is predicted, so that the various electrolytic hydrogen production devices in the mixed electrolytic hydrogen production system are scheduled in real time according to the real-time prediction result.

[0062] The power prediction sequence value refers to the prediction value on each time unit when the power value is predicted on a unit time scale. For example, when the power value is predicted on a day basis, the power prediction sequence value is the sequence value formed by the power prediction value of each day.

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

[0064] S20: Obtain 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 comprises a maximum power change rate, and 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 running state of a healthy running electrolytic hydrogen production equipment. The scale template can include a maximum power change rate, and a minimum power value and / or a maximum power value.

[0066] The power change rate refers to the ratio of the difference between the current time input power and the last time input power to the last time input power. For electrolytic hydrogen production equipment, the power change rate is divided into power ramp rate and power load shedding rate. For some electrolytic hydrogen production equipment with slow response speed to input power change, steep rise or steep drop of current will affect its healthy running. For example, during the running process of alkaline electrolytic cell, steep rise or steep drop of current will cause uneven temperature of electrolytic cell alkali solution, thereby damaging the electrolytic cell body and accelerating the corrosion of bipolar plate.

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

[0068] In some embodiments, excessively high temperature in the electrolytic hydrogen production equipment can cause problems such as accelerated electrode corrosion, reduced current efficiency, affected product quality, and safety hazards, and excessively low temperature can cause problems such as increased electrolyte resistance, slowed reaction rate, and frozen or crystallized electrolyte. Therefore, it is necessary to maintain the temperature in the electrolytic hydrogen production equipment within a healthy working range. Therefore, the scale template can further include a maximum temperature value and a minimum temperature value.

[0069] In some embodiments, the hydrogen storage capacity of the electrolytic hydrogen production system is limited, and excess hydrogen or oxygen cannot be stored, which can be dangerous. Therefore, the scale template can further include a maximum hydrogen or oxygen generation rate.

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

[0071] The scale templates of the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment are determined according to whether the equipment is healthy or not, and different people may have different determinations of the scale template.

[0072] For the alkaline electrolyzer, the scale template can be: the maximum value of the power change rate is 0.3% Pe / s-3% Pe / s, and the minimum value of the power is 40% Pe-60% Pe.

[0073] In fact, the input power of the alkaline electrolyzer can be 30% Pe (where Pe represents the rated input power of the alkaline electrolyzer) to 100% Pe, and this is also operated in actual projects. When the input power is reduced to 22% Pe, the hydrogen content in oxygen can also be controlled within 1.5% or less, meeting the requirements of healthy operation. However, considering long-term operation safety, a margin should be added to the scale requirement of the input power. For example, many manufacturers of alkaline electrolyzers recommend an input power of 50% Pe to 100% Pe, that is, the minimum input power can be 50% Pe.

[0074] In terms of power ramp rate and power 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 controlling the change value of the input power of the alkaline electrolyzer to be between 1% Pe / s and 3% Pe / s in actual use from the perspective of safety. The manufacturer hopes that the user of the alkaline electrolyzer will achieve the effect of peak shaving through energy storage, rather than using the electrolyzer to its limit to deal with power and load fluctuations. Based on this, a further margin can be added, 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 causes 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 the input power.

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

[0076] The first type of electrolytic hydrogen production equipment can be multiple, and the second type of electrolytic hydrogen production equipment can also be multiple.

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

[0078] In some embodiments, multiple first type of electrolytic hydrogen production equipment can be controlled respectively, that is, the input power of each first type of electrolytic hydrogen production equipment can be adjusted differently. Accordingly, when matching, S30 can match each first type of electrolytic hydrogen production equipment with the power prediction sequence value, respectively.

[0079] Specifically, as shown in Figure 3 S30 includes S31: matching the scale template of each first-type electrolytic hydrogen production device with the remaining power prediction value in a preset order respectively; 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 device.

[0080] For example, the power prediction value is 15 units, there are 5 same first-type electrolytic hydrogen production devices A, B, C, D and E, and it is assumed that each device can bear a maximum of 3.5 units of power, the matching order is A-B-C-D-E, then A can bear 3.5 units of power prediction value, and then the power remains 11.5 units; B can bear 3.5 units of power, and then the power remains 8.5 units; C can bear 3.5 units, and then the power remains 5 units; D can bear 3.5 units, and then the power remains 1.5 units; E can bear 1.5 units of remaining power.

[0081] If there is no D and E in the above example, the remaining 5 units of power is the second part of the power that fails to match with the first-type electrolytic hydrogen production device.

[0082] The scale templates of the plurality of first-type electrolytic hydrogen production devices performing the above S31 can be the same or different. The above example only gives the case where the scale templates are the same, but it does not mean that the scale templates of the first-type electrolytic hydrogen production devices must be the same.

[0083] The above preset order can be the number order of the electrolytic hydrogen production devices, the order of the actual input power of the electrolytic hydrogen production devices from large to small, the order of the actual input power of the electrolytic hydrogen production devices from small to large. In addition, the preset order can also be an order determined by other ways.

[0084] On the basis of the method shown in Figure 3 , further, as shown in Figure 4 , S31 can further include S60: calculating the minimum power required by the first-type electrolytic hydrogen production device and the second-type electrolytic hydrogen production device according to the scale templates of the first-type electrolytic hydrogen production device and the second-type electrolytic hydrogen production device.

[0085] The sum of the tentative input powers of the first-type electrolytic hydrogen production devices under the maximum power ramp-up rate and the maximum power ramp-down rate is taken as the minimum required power of the first-type electrolytic hydrogen production devices; and the sum of the tentative input powers of the second-type electrolytic hydrogen production devices under the maximum power ramp-up rate and the maximum power ramp-down rate is taken as the minimum required power of the second-type electrolytic hydrogen production devices.

[0086] Correspondingly, as shown in Figure 4 S30 includes the following S32 and S33 before S31.

[0087] S32: calculating a power difference between the power prediction value and the minimum required power of the first-type electrolytic hydrogen production devices and the second-type electrolytic hydrogen production devices.

[0088] S33: matching the size template of the first electrolytic hydrogen production device among the remaining first-type electrolytic hydrogen production devices with the power difference. The matching manner can be specifically: calculating the maximum power that the first electrolytic hydrogen production device can undertake according to the size template of the first electrolytic hydrogen production device, and determining that the maximum power that the first electrolytic hydrogen production device can undertake is matched successfully in the case that the power difference is greater than or equal to the maximum power that the first electrolytic hydrogen production device can undertake; and determining that the power difference is matched successfully in the case that the power difference is less than the maximum power that the first electrolytic hydrogen production device can undertake. Correspondingly, S31 can also be this matching manner.

[0089] The maximum power that the first electrolytic hydrogen production device can undertake can be the difference between the power that the first electrolytic hydrogen production device undertakes under the maximum power ramp-up rate and the power that the first electrolytic hydrogen production device undertakes under the maximum power ramp-down rate. That is, the maximum power that the first electrolytic hydrogen production device can undertake is the maximum value of the power that the first electrolytic hydrogen production device can undertake in addition to the minimum required power.

[0090] Correspondingly, S40 can be S41: distributing the minimum required power of the first-type electrolytic hydrogen production devices and the first part of power in which the power prediction value is matched successfully to the first-type electrolytic hydrogen production devices for processing, and S50 can be S51: distributing the minimum required power of the second-type electrolytic hydrogen production devices and the second part of power in which the power prediction value is not matched successfully to the second-type electrolytic hydrogen production devices for processing.

[0091] By S32 and S33, before the power is allocated to the first type of electrolytic hydrogen production equipment, the minimum power required by the second type of electrolytic hydrogen production equipment is guaranteed, so that the power allocated to the second type of electrolytic hydrogen production equipment can be prevented from being too small to affect the healthy operation of the second type of electrolytic hydrogen production equipment due to the excessive power reduction rate of the second type of electrolytic hydrogen production equipment in operation.

[0092] In some embodiments, as shown in Figure 5 and Figure 6 Before S31, S34, S35, S36 and S37 are further included.

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

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

[0095] In the case where S60 is not performed, as shown in Figure 5 The to-be-matched power value is the power prediction value. In the case where S60 is performed, as shown in Figure 6 The to-be-matched power value is the power difference value between the power prediction value and the minimum power value required by the second type of electrolytic hydrogen production equipment.

[0096] S36: In the case where the to-be-matched power value is less than or equal to the minimum power value, control the energy storage equipment to perform energy release operation for the first type of electrolytic hydrogen production equipment. In this case, it is determined that the to-be-matched power is not matched successfully.

[0097] Specifically, the power required by the energy storage equipment to release electric energy at least includes the difference power between the minimum power value and the to-be-matched power value. By controlling the energy storage equipment to perform energy release operation, it can be prevented that the power reduction rate of the first type of electrolytic hydrogen production equipment is too fast to affect its healthy operation.

[0098] S37: In the case where the to-be-matched power value is between the minimum power value and the maximum power value, the matching method is performed.

[0099] In some embodiments, the plurality of first type of electrolytic hydrogen production equipment can be controlled uniformly, that is, the input power of each first type of electrolytic hydrogen production equipment can be increased or decreased evenly. Accordingly, in the matching process, S30 can match each first type of electrolytic hydrogen production equipment as a whole with the power prediction sequence value.

[0100] Specifically, as shown in Figure 7As shown, S30 includes S38: gradually increasing or decreasing the power value to be allocated to each first-type electrolytic hydrogen production device or the power ramping rate under the scale template constraint of the first-type electrolytic hydrogen production device, calculating the maximum value of the power value to be allocated to each first-type electrolytic hydrogen production device under the condition that the maximum value does not exceed the scale template limit, and taking the sum of the maximum values of the power value to be allocated to each first-type electrolytic hydrogen production device as the first part of the power to be matched.

[0101] In Figure 7 Based on the method shown, further, as Figure 8 shown, S38 can further include S70: calculating the minimum power required by the second-type electrolytic hydrogen production device according to the scale template of the second-type electrolytic hydrogen production device.

[0102] The minimum power required by the second-type electrolytic hydrogen production device can be calculated according to the input power of the second-type electrolytic hydrogen production device at the last time, the maximum power reduction rate, and the power value to be input to each second-type electrolytic hydrogen production device.

[0103] Correspondingly, as Figure 8 shown, S30 includes the following S39 and S310 before S38.

[0104] S39: calculating the power difference between the power prediction value and the minimum power required by the second-type electrolytic hydrogen production device.

[0105] S310: taking the power difference as the power to be matched. Correspondingly, S50 can be S51: allocating the second part of the power that fails to be matched among the power prediction values to the second-type electrolytic hydrogen production device to process.

[0106] Through the above S39 and S310, the minimum power required by the second-type electrolytic hydrogen production device is guaranteed before the power is allocated to the first-type electrolytic hydrogen production device, so that the power allocated to the second-type electrolytic hydrogen production device can be prevented from being too small to affect the health of the second-type electrolytic hydrogen production device due to the excessively large power reduction rate of the second-type electrolytic hydrogen production device in operation.

[0107] In some embodiments, as Figure 9 and Figure 10 shown, S38 can further include the following S311, S312, and S313.

[0108] S311: calculating the maximum power and the minimum power that can be borne by the first-type electrolytic hydrogen production device as a whole according to the maximum change rate of each first-type electrolytic hydrogen production device.

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

[0110] In the case that S70 is not performed, as shown in Figure 10 , the to-be-matched power value is the power prediction value. In the case that S70 is performed, as shown in Figure 9 , the to-be-matched power value is the power difference value between the power prediction value and the power minimum value required by the second type of electrolytic hydrogen production equipment.

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

[0112] Specifically, the power required by the energy storage equipment to release electric energy at least includes the difference power between the power minimum value and the to-be-matched power value. By controlling the energy storage equipment to perform the energy release operation, it can be prevented that the power unloading rate of the first type of electrolytic hydrogen production equipment is too fast to affect its healthy operation.

[0113] S314: In the case that the to-be-matched power value is between the power minimum value and the power maximum value, the above matching method is performed.

[0114] S40: The first part of power which is successfully matched in each power prediction value is allocated to the first type of electrolytic hydrogen production equipment for processing.

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

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

[0117] S50: The second part of power which is unsuccessfully matched in each power prediction value is allocated to the second type of electrolytic hydrogen production equipment for processing.

[0118] The second part of power, that is, the power which is unsuccessfully matched in the power prediction value.

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

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

[0121] The second type of electrolytic hydrogen production device described above can be a proton exchange membrane electrolytic cell. Alkaline electrolytic cells and proton exchange membrane electrolytic cells have become two major mainstream technologies in the engineering field.

[0122] Through the power matching sequence of the first type of electrolytic hydrogen production device and the second type of electrolytic hydrogen production device, it can be ensured that the electrolytic hydrogen production devices work cooperatively under healthy operation, and the first type of electrolytic hydrogen production device is preferred to bear the input power, which can flexibly respond to rapidly changing new energy power input while reducing the use cost of the electrolytic hydrogen production system, improving the hydrogen production efficiency, and maximizing the efficiency of new energy.

[0123] In some embodiments, the second type of electrolytic hydrogen production device can be a first type of electrolytic hydrogen production device, or a collection of multiple electrolytic hydrogen production devices other than the first type of electrolytic hydrogen production device.

[0124] In some embodiments, when the second type of electrolytic hydrogen production device is a collection of multiple electrolytic hydrogen production devices other than the first type of electrolytic hydrogen production device, the second type of electrolytic hydrogen production device includes a first subclass of electrolytic hydrogen production devices and a second subclass of electrolytic hydrogen production devices. Accordingly, as shown in FIG. 5B, S50 can include the following S5A1 to S5A53. Figure 11

[0125] SA51: Match the scale templates of the first subclass of electrolytic hydrogen production devices with the second part of power, respectively.

[0126] SA52: Assign the first sub-power that is successfully matched in the second part of power to the first subclass of electrolytic hydrogen production devices for processing.

[0127] SA53: Assign the second sub-power that is not successfully matched in the second part of power to the second subclass of electrolytic hydrogen production devices for processing.

[0128] ​The operating cost of the aforementioned Category I electrolysis hydrogen production equipment is lower than that of Category II electrolysis hydrogen production equipment. By controlling the power matching sequence of the Category I and Category II electrolysis hydrogen production equipment, it can be ensured that the electrolysis hydrogen production equipment works collaboratively while maintaining healthy operation. Prioritizing the use of Category I electrolysis hydrogen production equipment to handle input power allows for flexible adaptation to rapidly changing renewable energy power inputs, while reducing the operating cost of the electrolysis hydrogen production system, improving hydrogen production efficiency, and maximizing renewable energy efficiency.

[0129] The power matching method for the SA51 mentioned above can be referenced. Figures 3 to 10 Any of the power matching methods is used, the difference being that the first type of electrolytic hydrogen production equipment is replaced with a first type of electrolytic hydrogen production equipment, the second type of electrolytic hydrogen production equipment is replaced with a second sub-type of electrolytic hydrogen production equipment, the predicted power value is replaced with the second part of the power, the first part of the power is replaced with the first sub-power, and the second part of the power is replaced with the second sub-power. This specification will not elaborate further.

[0130] The hybrid electrolysis hydrogen production system scheduling method provided in this specification introduces a scale template for each electrolysis hydrogen production unit. Based on the predicted values ​​of renewable energy power generation, the corresponding power to be matched and allocated to each electrolysis hydrogen production unit is determined. The scale template of the first type of electrolysis hydrogen production unit is matched with the power to be matched. The first portion of the power to be matched that is successfully matched is allocated to the first type of electrolysis hydrogen production unit for processing, while the second portion of the power to be matched that is not successfully matched is allocated to the second type of electrolysis hydrogen production unit for processing. The first type of electrolysis hydrogen production unit responds to changes in input power more slowly than the second type. This scheme proposes a scale template reflecting the characteristics of different electrolysis hydrogen production units. This scale template can establish a matching bridge between the electrolyzer load and the fluctuating renewable energy power, achieving optimized adaptation between fluctuating renewable energy output and the electrolyzer's absorption capacity. This improves the absorption capacity of renewable energy, reduces wind and solar curtailment, and increases hydrogen production.

[0131] This solution prioritizes the allocation of input power to the first type of electrolyzer for processing. It utilizes the more volatile portion of the input power in the second type of electrolytic hydrogen production equipment, which responds more quickly to changes in input power. Compared to developing a flexible electrolyzer, this solution is more cost-effective. In other words, this solution can flexibly respond to rapidly changing renewable energy power inputs while reducing the operating costs of the electrolytic hydrogen production system, improving hydrogen production efficiency, and maximizing renewable energy efficiency.

[0132] The first type of electrolytic hydrogen production equipment can be selected according to the core requirements of the electrolytic hydrogen production system design. For example, in the case of requiring a low-cost electrolytic hydrogen production system, the first type of electrolytic hydrogen production equipment can be selected to use a lower-cost alkaline electrolytic cell; in the case of requiring a large hydrogen production rate of the electrolytic hydrogen production system, an electrolytic cell with a larger hydrogen production rate can be selected.

[0133] The present specification provides a hybrid electrolytic hydrogen production system scheduling execution method, as shown in Figure 12 S81-S84.

[0134] S81: Predict the new energy power generation of each day within the first time interval every first time interval to obtain the power prediction sequence value of each day.

[0135] The first time interval is a period of time greater than 24 hours. The first time interval can be an integer multiple of 24 hours. For example, the first time interval can be one day, so S81 is to perform prediction once a day, and the prediction result is used to preliminarily formulate the scheduling plan of the hybrid electrolytic cell according to the date of the target day. For another example, the first time interval can also be N days (N is an integer greater than or equal to 2), so S81 is to perform prediction once every few days, and each prediction result can be used to formulate the scheduling plan of the hybrid electrolytic cell for the next few days.

[0136] Regardless of the first time interval, S81 is to perform prediction before the target day (i.e., day-ahead prediction), and to formulate the scheduling plan of the hybrid electrolytic cell according to the prediction result.

[0137] S82: Perform the hybrid electrolytic hydrogen production system scheduling method based on the power prediction value of each day within the first time interval, and preliminarily formulate the scheduling plan of the hybrid electrolytic cell according to the power distribution result.

[0138] The scheduling plan includes how many of each type of electrolytic hydrogen production equipment are in a ready state, i.e., in a state that can access new energy power generation at any time.

[0139] S83: Real-time predict the new energy power generation on each target day.

[0140] Real-time prediction of new energy power generation means that the time difference between the time corresponding to the latest prediction value of the new energy power generation and the prediction time is less than a third time interval. The third time interval can be a short time interval, for example, real-time prediction can be 20 minutes in advance, 10 minutes in advance, etc.

[0141] S84: Perform the hybrid electrolytic hydrogen production system scheduling method based on the real-time prediction value of the new energy power generation, and adjust the input power of each type of electrolytic hydrogen production equipment in the hybrid electrolytic hydrogen production system according to the power distribution result.

[0142] S84 can include reducing or increasing the input power of the electrolytic hydrogen production equipment that has accessed the new energy power generation power, can also include accessing the new energy power generation power to the electrolytic hydrogen production equipment that has not accessed the new energy power generation power, and can also include cutting off the electrolytic hydrogen production equipment that has accessed the new energy power generation power from the power supply line of the new energy power generation power.

[0143] In some embodiments, as shown in FIG. 8, before S84, S85 and S86 are further included. Figure 13

[0144] S85: At each target day, the new energy power generation power is predicted once every second time length, and a power prediction sequence value in the day is obtained.

[0145] The second time length is greater than the third time length and less than 12 hours. For example, the second time length can be 3 hours, 2 hours, etc. That is, in the day, the new energy power generation power is predicted at a smaller time scale, and the dispatching plan is adjusted according to the prediction result.

[0146] S86: Based on the power prediction sequence value in the day, the hybrid electrolytic hydrogen production system scheduling method is executed respectively, and the dispatching plan of the hybrid electrolytic tank is adjusted according to the power distribution result.

[0147] Adjusting the dispatching plan of the hybrid electrolytic tank includes supplementing the corresponding electrolytic hydrogen production equipment in a timely manner in the case that the number of various types of electrolytic hydrogen production equipment in the initially formulated dispatching plan is insufficient.

[0148] Through the day-ahead prediction, short-term prediction in the day, and real-time prediction described in S81-S86, the dispatching plan of the hybrid electrolytic tank can be gradually improved, so that when the dispatching is formally executed, no large modification is needed, and the fluctuation and intermittence of the new energy power generation power can be timely adjusted to timely adjust the cooperation of various types of electrolytic hydrogen production equipment.

[0149] The present specification provides a hybrid electrolytic hydrogen production system scheduling device, which can be used to implement the above-mentioned hybrid electrolytic hydrogen production system scheduling method. As shown in FIG. 9, the device includes a first acquisition unit 110, a second acquisition unit 120, a first matching unit 130, a first distribution unit 140, and a second distribution unit 150. Figure 14

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

[0151] The second acquisition unit 120 is configured 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, and a minimum power and / or a maximum power.

[0152] ​​The first matching unit 130 is configured to match the scale templates of the first type of electrolytic hydrogen production devices with each power prediction value in the power prediction sequence respectively.

[0153] The first distribution unit 140 is configured to distribute the first part of power, which is successfully matched, to the first type of electrolytic hydrogen production devices for processing.

[0154] The second distribution unit 150 is configured to distribute the second part of power, which is unsuccessfully matched, to the second type of electrolytic hydrogen production devices for processing.

[0155] In some embodiments, the first type of electrolytic hydrogen production devices has a slower response speed to input power changes than the second type of electrolytic hydrogen production devices, and the first type of electrolytic hydrogen production devices has a lower use cost than the second type of electrolytic hydrogen production devices.

[0156] In some embodiments, the second type of electrolytic hydrogen production devices is a collection of multiple types of electrolytic hydrogen production devices other than the first type of electrolytic hydrogen production devices.

[0157] In some embodiments, the second type of electrolytic hydrogen production devices includes a first sub-type of electrolytic hydrogen production devices and a second sub-type of electrolytic hydrogen production devices. The second distribution unit includes a first matching sub-unit, a first distribution sub-unit, and a second distribution sub-unit.

[0158] The first matching sub-unit is configured to match the scale templates of the first sub-type of electrolytic hydrogen production devices with the second part of power respectively.

[0159] The first distribution sub-unit is configured to distribute the first sub-power, which is successfully matched, in the second part of power to the first sub-type of electrolytic hydrogen production devices for processing.

[0160] The second distribution sub-unit is configured to distribute the second sub-power, which is unsuccessfully matched, in the second part of power to the second sub-type of electrolytic hydrogen production devices for processing.

[0161] In some embodiments, the first sub-type of electrolytic hydrogen production devices has a lower use cost than the second sub-type of electrolytic hydrogen production devices.

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

[0163] The first calculation unit is configured to calculate a maximum power value and a minimum power value that the first type of electrolytic hydrogen production devices as a whole can bear according to the maximum change rate of each first type of electrolytic hydrogen production device.

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

[0165] The second determining unit is configured to control the energy storage device to perform energy release operation for supplying the first type of electrolytic hydrogen production device when the to-be-matched power value is less than or equal to the power minimum value.

[0166] When the to-be-matched power value is between the power minimum value and the power maximum value, the first matching unit matches the size template of the first type of electrolytic hydrogen production device with each power prediction value in the power prediction sequence value respectively.

[0167] In some embodiments, the first matching unit comprises a second matching subunit configured to match the size template of each first type of electrolytic hydrogen production device 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 of electrolytic hydrogen production device.

[0168] In some embodiments, the first matching unit comprises a third matching subunit configured to gradually increase or decrease the to-be-allocated power value or the power ramping rate of each first type of electrolytic hydrogen production device under the constraint of the size template of the first type of electrolytic hydrogen production device, calculate the maximum value of the to-be-allocated power value of each first type of electrolytic hydrogen production device under the condition that the maximum value does not exceed the size template limit, and take the sum of the maximum values of the to-be-allocated power value of each first type of electrolytic hydrogen production device as the first part of the power in the to-be-matched power value that is successfully allocated.

[0169] In some embodiments, the device further comprises a second calculating unit, a third calculating unit and a second matching unit.

[0170] The second calculating unit is configured to calculate the power minimum value required by the first type of electrolytic hydrogen production device and the second type of electrolytic hydrogen production device according to the size template of the first type of electrolytic hydrogen production device and the second type of electrolytic hydrogen production device.

[0171] The third calculating unit is configured to calculate the power difference between the power prediction value and the power minimum value required by the first type of electrolytic hydrogen production device and the second type of electrolytic hydrogen production device.

[0172] The second matching unit is configured to match the size template of the first electrolytic hydrogen production device in the remaining first type of electrolytic hydrogen production device with the power difference; or take the power difference as the to-be-matched power.

[0173] Correspondingly, the second allocation unit allocates the second part of the power that is unsuccessfully matched in each power prediction value to the second type of electrolytic hydrogen production device for processing.

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

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

[0176] This specification provides a scheduling and execution device for a hybrid electrolysis hydrogen production system, which can be used to implement the aforementioned scheduling and execution method for a hybrid electrolysis hydrogen production system. For example... Figure 15 As shown, the device includes a first prediction unit 210, a planning unit 220, a second prediction unit 230, and a plan execution unit 240.

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

[0178] The planning unit 220 is used to execute the hybrid electrolysis hydrogen production system scheduling method described above based on the power forecast values ​​for each day within the first time period, and to initially formulate a scheduling plan for the hybrid electrolyzer based on the power allocation results.

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

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

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

[0182] The third prediction unit is used to predict the power generation of new energy sources once every second time interval on each target day, so as to obtain the power prediction sequence value in the middle of the day.

[0183] The planning adjustment unit is used to execute the hybrid electrolysis hydrogen production system scheduling method described above based on the daily power prediction sequence value, and adjust the scheduling plan of the hybrid electrolyzer according to the power allocation result.

[0184] The descriptions and functions of the above-mentioned devices can be understood by referring to the corresponding methods section, and will not be repeated here.

[0185] This invention also provides an electronic device, such as... Figure 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. Figure 16 Taking the example of a connection between China and Israel via a bus.

[0186] Processor 1601 can be a Central Processing Unit (CPU). Processor 1601 can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or combinations of the above types of chips.

[0187] Memory 1602, as a non-transitory computer-readable storage medium, 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 this embodiment of the invention (e.g., Figure 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 Figure 15 The first prediction unit 210, the planning unit 220, the second prediction unit 230, and the plan execution unit 240 are shown. The processor 1601 executes various functional applications and data processing by running non-transitory software programs, instructions, and modules stored in the memory 1602, that is, implementing the hybrid electrolysis hydrogen production system scheduling method or the hybrid electrolysis hydrogen production system scheduling execution method in the above method embodiments.

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

[0189] The one or more modules are stored in the memory 1602 and, when executed by the processor 1601, perform the scheduling method of a hybrid electrolytic hydrogen production system or the scheduling execution method of a hybrid electrolytic hydrogen production system in the embodiments described above.

[0190] The above electronic device specific details can be understood in correspondence with the relevant descriptions and effects in the method embodiments, which will not be described here again.

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

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

[0193] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing related hardware. The program can be stored in a computer readable storage medium. When the program is executed, it can include the processes of the above-mentioned embodiments of each method. The storage medium can be a magnetic disc, an optical disc, 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 memories.

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

[0195] The system, device, module or unit described in the above embodiments can be specifically implemented by a computer chip or entity, or by a product with certain functions.

[0196] For the convenience of description, the above device is described as various units with functions. Of course, the functions of each unit can be implemented in the same or more software and / or hardware in the implementation of the present application.

[0197] Those skilled in the art can clearly understand the application by the description of the above embodiments that the application can be realized by means of software necessary and general hardware platforms. Based on such an understanding, the technical solutions of the application can be embodied in a software product form, and the computer software product can be stored in a storage medium, such as a ROM / RAM, a magnetic disk, an optical disk, etc., and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute the methods of some parts of the embodiments of the application.

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

[0199] The application can 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 application can also be practiced in a distributed computing environment, in which tasks are performed by remote processing devices connected by a communication network. In a distributed computing environment, program modules can be located in both local and remote computer storage media, including storage devices.

[0200] Although the application is depicted through the embodiments, those skilled in the art know that the application has many variations and changes without departing from the spirit of the application, and it is intended that the appended claims include these variations and changes without departing from the spirit of the application.

Claims

1. A scheduling method for a hybrid electrolysis hydrogen production system, characterized in that, include: Obtain the power prediction sequence value of new energy power generation; Obtain scale templates for a first type of electrolytic hydrogen production equipment and a second type of electrolytic hydrogen production equipment. The scale templates include the maximum power change rate, the minimum power value, and the maximum power value. The first type of electrolytic hydrogen production equipment responds to input power changes more slowly than the second type of electrolytic hydrogen production equipment. The scale template of the first type of electrolytic hydrogen production equipment is matched with each power prediction value in the power prediction sequence value; The first portion of the power that is successfully matched from each power prediction value is allocated to the first type of electrolytic hydrogen production equipment for processing, including: allocating the minimum power required by the first type of electrolytic hydrogen production equipment and the first portion of the power that is successfully matched from each power prediction value to the first type of electrolytic hydrogen production equipment for processing. The second portion of 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 portion of power that fails to match in each power prediction value to the second type of electrolytic hydrogen production equipment for processing. Specifically, the scale template of the first type of electrolytic hydrogen production equipment is matched with each power prediction value in the power prediction sequence, including: Calculate the minimum power required for the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment based on the scale templates of the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment. Calculate the power difference between the predicted power 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 device among the remaining first-type electrolytic hydrogen production devices with the power difference includes: calculating the maximum power that the first electrolytic hydrogen production device can handle based on its scale template; if the power difference is greater than or equal to the maximum power that the first electrolytic hydrogen production device can handle, determining that the maximum power that the first electrolytic hydrogen production device can handle is successfully matched; if the power difference is less than the maximum power that the first electrolytic hydrogen production device can handle, determining that the power difference is successfully matched; wherein, the maximum power that the first electrolytic hydrogen production device can handle is the difference between the power it handles under the maximum power ramp-up rate and the power it handles under the maximum power deceleration rate, that is, the maximum power that the first electrolytic hydrogen production device can handle is the maximum power that it can handle in addition to its minimum required power; The dimensional templates of each type I electrolytic hydrogen production equipment are matched with the remaining power prediction values ​​in a preset order. The remaining power prediction values ​​are the difference between the power prediction values ​​and the power allocation of each matched type I electrolytic hydrogen production equipment.

2. The method according to claim 1, characterized in that, The operating 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 various electrolytic hydrogen production equipment other than 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 a first subtype of electrolytic hydrogen production equipment and a second subtype of electrolytic hydrogen production equipment; the second portion of power that fails to match in each power prediction value is allocated to the second type of electrolytic hydrogen production equipment for processing, including: The scale templates of the first sub-category of electrolytic hydrogen production equipment are matched with the power of the second part respectively; The first sub-power that is successfully matched in the second part of the power is allocated to the first sub-type of electrolytic hydrogen production equipment for processing; The second sub-power that failed to match in the second part of the power is allocated to the second sub-type of electrolytic hydrogen production equipment for processing.

5. The method according to claim 4, characterized in that, The operating cost of the first sub-category of electrolytic hydrogen production equipment is lower than that of the second sub-category of electrolytic hydrogen production equipment.

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

7. The method according to claim 6, characterized in that, The dimensional template for the alkaline electrolysis hydrogen production equipment is as follows: the maximum value of the power change rate is 0.3%Pe / s to 3%Pe / s, and the minimum power is 40%Pe to 60%Pe; The standard template for the proton exchange membrane electrolysis hydrogen production equipment is: the maximum power change rate is 30% Pe / s to 50% Pe / s, and the minimum power is 5% Pe to 20% Pe; Where Pe represents the rated input power.

8. A scheduling and execution method for a hybrid electrolysis hydrogen production system, characterized in that, include: Predict the power generation of new energy sources for each day within the first time period, and obtain the daily power prediction sequence value. Based on the power prediction sequence values ​​for each day within the first time period, the scheduling method of the hybrid electrolysis hydrogen production system as described in any one of claims 1 to 7 is executed respectively, and a preliminary scheduling plan for the hybrid electrolyzer is formulated based on the power allocation results; Real-time forecasting of renewable energy power generation on each target day; The method for scheduling a hybrid electrolysis hydrogen production system according to any one of claims 1 to 7 is executed based on the real-time predicted value of the new energy power generation, and the input power of various electrolysis hydrogen production devices in the hybrid electrolysis hydrogen production system is adjusted according to the power allocation result.

9. A scheduling device for a hybrid electrolysis hydrogen production system, characterized in that, include: The first acquisition unit is used to acquire the power prediction sequence value of new energy power generation; The second acquisition unit is used to acquire scale templates for the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment. The scale templates include the maximum power change rate, the minimum power value, and the maximum power value. The first type of electrolytic hydrogen production equipment responds to changes in input power more slowly than the second type of electrolytic hydrogen production equipment. The 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; The first allocation unit is used to allocate the first portion of power that is successfully matched from each power prediction value to the first type of electrolytic hydrogen production equipment for processing, including: allocating the minimum power required by the first type of electrolytic hydrogen production equipment and the first portion of power that is successfully matched from 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 portion of power that fails to match in each power prediction value 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 portion of power that fails to match in each power prediction value to the second type of electrolytic hydrogen production equipment for processing. Specifically, the scale template of the first type of electrolytic hydrogen production equipment is matched with each power prediction value in the power prediction sequence, including: Calculate the minimum power required for the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment based on the scale templates of the first type of electrolytic hydrogen production equipment and the second type of electrolytic hydrogen production equipment. Calculate the power difference between the predicted power 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 device among the remaining first-type electrolytic hydrogen production devices with the power difference includes: calculating the maximum power that the first electrolytic hydrogen production device can handle based on its scale template; if the power difference is greater than or equal to the maximum power that the first electrolytic hydrogen production device can handle, determining that the maximum power that the first electrolytic hydrogen production device can handle is successfully matched; if the power difference is less than the maximum power that the first electrolytic hydrogen production device can handle, determining that the power difference is successfully matched; wherein, the maximum power that the first electrolytic hydrogen production device can handle is the difference between the power it handles under the maximum power ramp-up rate and the power it handles under the maximum power deceleration rate, that is, the maximum power that the first electrolytic hydrogen production device can handle is the maximum power that it can handle in addition to its minimum required power; The dimensional templates of each type I electrolytic hydrogen production equipment are matched with the remaining power prediction values ​​in a preset order. The remaining power prediction values ​​are the difference between the power prediction values ​​and the power allocation of each matched type I electrolytic hydrogen production equipment.

10. A scheduling and execution device for a hybrid electrolysis hydrogen production system, characterized in that, include: The first prediction unit is used to predict the power generation of new energy sources for each day within the first time period, and obtain the daily power prediction sequence value. The planning unit is used to execute the hybrid electrolysis hydrogen production system scheduling method according to any one of claims 1 to 7 based on the power prediction sequence values ​​of each day within the first time period, and to initially formulate the scheduling plan of the hybrid electrolyzer based on the power allocation results; The second prediction unit is used to predict the power generation of new energy sources in real time on each target day. The planning execution unit is used to execute the hybrid electrolysis hydrogen production system scheduling method according to any one of claims 1 to 7 based on the real-time predicted value of the new energy power generation, and to adjust the input power of various electrolysis hydrogen production equipment in the hybrid electrolysis hydrogen production system according to the power allocation result.

11. An electronic device, characterized in that, include: A memory and a processor, wherein the processor and the memory are communicatively connected, the memory stores computer instructions, and the processor executes the computer instructions to implement the method of any one of claims 1 to 8.

12. A computer storage medium, characterized in that, The computer storage medium stores computer program instructions, which, when executed, implement the steps of the method described in any one of claims 1 to 8.

13. A computer program product, characterized in that, It includes a computer program that, when executed by a processor, implements the steps of the method according to any one of claims 1 to 8.

Images