CN116623229A - Control method, device, medium and equipment of wind power hydrogen production system - Google Patents
Control method, device, medium and equipment of wind power hydrogen production system Download PDFInfo
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- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 161
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 161
- 239000001257 hydrogen Substances 0.000 title claims abstract description 161
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 156
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000005868 electrolysis reaction Methods 0.000 claims description 301
- 238000004146 energy storage Methods 0.000 claims description 292
- 230000005611 electricity Effects 0.000 claims description 43
- 238000010248 power generation Methods 0.000 claims description 40
- 230000005540 biological transmission Effects 0.000 claims description 39
- 230000015654 memory Effects 0.000 claims description 28
- 238000007599 discharging Methods 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 description 9
- 238000004891 communication Methods 0.000 description 6
- 238000003062 neural network model Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000012549 training Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000802 evaporation-induced self-assembly Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/60—Constructional parts of cells
- C25B9/65—Means for supplying current; Electrode connections; Electric inter-cell connections
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Inorganic Chemistry (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to the technical field of wind power hydrogen production and discloses a control method, a device, a medium and equipment of a wind power hydrogen production system.
Description
Technical Field
The invention relates to the technical field of wind power hydrogen production, in particular to a control method, a device, a medium and equipment of a wind power hydrogen production system.
Background
With the new clean energy source attracting attention as a substitute for traditional fossil energy sources, the hydrogen energy market as a truly zero carbon emission is also increasingly hot. The hydrogen produced when water electrolysis is combined with renewable energy power is often referred to as "green hydrogen", a process that requires no grid power to participate, i.e., off-grid mode. In many renewable energy power generation technologies, wind power generation has intermittent and fluctuating characteristics due to the dependence of wind power, and the fluctuation range of power generation power may exceed the allowable range of an electrolytic tank or an electrolytic device.
In the related art, in order to realize a wind power hydrogen production system, an energy storage device is generally adopted to consume redundant electric quantity of wind power so as to counteract the fluctuation of wind power, but the research on how to configure the capacity of an electrolytic cell or an electrolytic device and how to control the wind power hydrogen production system after determining the capacity of the electrolytic cell or the electrolytic device so as to reduce the start-stop frequency of the electrolytic cell or the electrolytic device is less.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to overcome the technical defects of the prior art that the capacity of an electrolysis device and an energy storage device in a wind power hydrogen production system is configured and how to control each device in the wind power hydrogen production system under the corresponding configuration, so as to provide a control method, a device, a medium and equipment of the wind power hydrogen production system.
In a first aspect, an embodiment of the present invention provides a control method for a wind power hydrogen production system, including: acquiring preset internet power data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device, wherein the internet power data is used for reflecting the relation between the power uploaded to the power grid and the power generation capacity of the wind power device;
performing iterative operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device based on preset internet power data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device until preset conditions are met, so as to obtain the target capacity of the electrolysis device and the target capacity of the energy storage device; acquiring first charge and discharge power of an energy storage device, first working power and second working power of an electrolysis device; dividing an operation interval of the wind power hydrogen production system according to the generated power and the second working power, wherein the operation interval of the wind power hydrogen production system comprises: a first power operation interval and a second power operation interval; and determining target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge and discharge power, the first working power and the second working power, wherein the target control parameters comprise at least one parameter in a first power operation area or a second power operation area, and the at least one parameter is used for adjusting the operation power of the electrolysis device, the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device.
With reference to the first aspect, in one possible implementation manner of the first aspect, based on preset internet power data, power generation power of the wind power device, initial capacity of the electrolysis device and initial capacity of the energy storage device, performing iterative operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device until a preset condition is met, to obtain a target capacity of the electrolysis device and a target capacity of the energy storage device, including: generating simulated online electric quantity data and equivalent hydrogen production hours of the electrolysis device based on the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device; comparing the simulated internet power data with the preset internet power data, and adjusting the initial capacity of the electrolysis device based on the comparison result until the difference value between the simulated internet power data and the preset internet power data meets a first preset condition to obtain the target capacity of the electrolysis device; comparing the equivalent hydrogen production hours of the electrolysis device with a preset threshold value, and adjusting the initial capacity of the energy storage device based on the comparison result until the difference value between the equivalent hydrogen production hours of the electrolysis device and the preset threshold value meets a second preset condition, so as to obtain the target capacity of the energy storage device.
With reference to the first aspect, in a possible implementation manner of the first aspect, dividing an operation interval of the wind power hydrogen production system according to the generated power and the second operating power includes: determining the influence degree of the generated power on the wind power hydrogen production system according to the relative sizes of the generated power and the second working power; based on the influence degree, classifying the wind power hydrogen production system to obtain a first power operation interval and a second power operation interval.
With reference to the first aspect, in one possible implementation manner of the first aspect, the target control parameters include a first target control parameter, where the first target control parameter is used to reflect at least one parameter in a first power operation interval, and determining, according to the generated power, the first charge-discharge power, the first operating power, and the second operating power, the target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device includes: obtaining the residual electric quantity and the second capacity of the energy storage device; and determining a first target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the relative sizes of the generated power, the first charging and discharging power, the first working power and the second working power based on the residual electric quantity and the second capacity.
With reference to the first aspect, in one possible implementation manner of the first aspect, determining, based on the remaining power, a first target control parameter of the wind power hydrogen production system under a target capacity of the electrolysis device and a target capacity of the energy storage device by relative magnitudes of the generated power, the first charge-discharge power, the first operating power, and the second operating power includes: when the residual electric quantity reaches the second capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device; and when the residual electric quantity does not reach the second capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device.
With reference to the first aspect, in one possible implementation manner of the first aspect, the target control parameters include a second target control parameter, where the second target control parameter is used to reflect at least one parameter in a second power operation interval, and determining, according to the generated power, the first charge-discharge power, the first operating power, and the second operating power, the target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device includes: acquiring the residual electric quantity, the first capacity and the second capacity of the energy storage device; and determining a second target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device by the relative sizes of the generated power, the first charge-discharge power, the first working power and the second working power based on the residual electric quantity, the first capacity and the second capacity.
With reference to the first aspect, in one possible implementation manner of the first aspect, based on the remaining power, the first capacity, and the second capacity, determining, by relative magnitudes of the generated power, the first charge-discharge power, the first operating power, and the second operating power, a second target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device includes: when the residual electric quantity reaches the second capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device; when the residual electric quantity does not reach the second capacity and the residual electric quantity reaches the first capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device; and when the residual electric quantity does not reach the second capacity and the residual electric quantity does not reach the first capacity, adjusting the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device.
In a second aspect, an embodiment of the present invention provides a control device for a wind power hydrogen production system, including:
the capacity acquisition module is used for acquiring preset internet power data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device, wherein the internet power data is used for reflecting the relation between the power uploaded to the power grid and the power generation capacity of the wind power device; the iteration operation module is used for carrying out iteration operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device based on preset internet power data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device until preset conditions are met, so as to obtain the target capacity of the electrolysis device and the target capacity of the energy storage device; the power acquisition module is used for acquiring the first charge and discharge power of the energy storage device, the first working power and the second working power of the electrolysis device; the interval division module is used for dividing an operation interval of the wind power hydrogen production system according to the generated power and the second working power, and the operation interval of the wind power hydrogen production system comprises: a first power operation interval and a second power operation interval; the parameter control module is used for determining target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge and discharge power, the first working power and the second working power, wherein the target control parameters comprise at least one parameter in a first power operation area or a second power operation area, and the at least one parameter is used for adjusting the operation power of the electrolysis device, the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device.
In a third aspect, the present embodiment provides a computer readable storage medium, where computer instructions are stored, where the computer instructions, when executed by a processor, implement a control method of a wind power hydrogen production system according to any embodiment of the first aspect.
In a fourth aspect, an embodiment of the present invention provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor that, when executed by the at least one processor, cause the electronic device to perform a method of controlling a wind power generation system as in any of the embodiments of the first aspect.
The invention provides a control method, a device, a medium and equipment of a wind power hydrogen production system, wherein the method comprises the following steps: the method comprises the steps of obtaining target capacity of an electrolysis device and target capacity of an energy storage device, obtaining power generation, first charge and discharge power, first working power and second working power, dividing an operation interval of a wind power hydrogen production system through the power generation and the second working power, and accordingly determining target control parameters in different power operation intervals under the target capacity of the electrolysis device and the target capacity of the energy storage device. In the process, the generated power, the first charge and discharge power, the first working power and the second working power are obtained under the determined target capacity of the electrolysis device and the determined target capacity of the energy storage device, so that the working conditions of the wind power hydrogen production system are divided through the generated power and the second working power of the electrolysis device, and the control parameters of the first power operation interval and the second power operation interval are regulated and controlled respectively, thereby realizing reasonable configuration of the capacity of the electrolysis device and the capacity of the energy storage device, regulating and controlling the control parameters in the wind power hydrogen production system, reducing the start-stop frequency of the electrolysis device, and effectively prolonging the service life of the electrolysis device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a wind power hydrogen production system provided by an embodiment of the invention;
FIG. 2 is a flowchart of a specific example of a control method of a wind power hydrogen production system according to an embodiment of the present invention;
FIG. 3 is a flowchart of another specific example of a control method of a wind power hydrogen production system according to an embodiment of the present invention;
FIG. 4 is a schematic block diagram of a specific example of a control device for a wind power hydrogen production system according to an embodiment of the present invention;
fig. 5 is a diagram illustrating a structure of an electronic device according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Unless specifically stated or limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, or can be communicated inside the two components, or can be connected wirelessly or in a wired way. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The embodiment provides a wind power hydrogen production system, as shown in fig. 1, including: wind power device 11, energy storage device 12, electrolysis device 13, control module 14, power transmission device 15. Wherein, control module 14 is connected with energy storage device 12, wind power device 11 and electrolysis device 13 respectively, and electrolysis device 13 includes: the electrolysis unit 131 and the electrolysis unit 132 are used for generating electric energy by the wind power device 11, the electric energy generated by the wind power device 11 can be stored in the energy storage device 12 and can be transmitted to the electricity transmission device 15 or can be used for the electrolysis device 13, in the wind power hydrogen production system, the use priority relationship of the electric energy generated by the wind power device 11 is that the electric energy is preferentially used for the electrolysis device 13, the energy storage device 12 and the electricity transmission device 15 in sequence, and the electric energy stored in the energy storage device 12 can also be used for the electrolysis device 13, so that the electric energy is used for electrolysis to prepare hydrogen through at least one electrolysis unit contained in the electrolysis device 13, and it is understood that the number of electrolysis units contained in the electrolysis device 13 comprises but is not limited to the one shown in fig. 1. The electricity transmission device 15 is used for uploading the electric energy transmitted to the electricity transmission device 15 to the power grid.
The embodiment provides a control method of a wind power hydrogen production system, as shown in fig. 2, comprising the following steps:
s101, acquiring preset internet power data, power generation power of a wind power device, initial capacity of an electrolysis device and initial capacity of an energy storage device, wherein the internet power data is used for reflecting the relation between the power uploaded to a power grid and the power generation capacity of the wind power device.
The process of obtaining the initial capacity of the electrolysis device and the initial capacity of the energy storage device is a process of configuring the capacity of the electrolysis device and the capacity of the energy storage device in a simulation mode. The initial capacity of the electrolysis device refers to the number of at least one electrolysis cell comprised by the electrolysis device. The number of electrolysis units is determined by the internet power data.
Specifically, the initial capacity of the energy storage device refers to the size of the energy storage device. The obtaining of the initial capacity of the energy storage device is to take a preset value as the initial capacity of the energy storage device, wherein the preset value of the initial capacity of the energy storage device can be configured according to actual working conditions, and the target capacity of the energy storage device can be 5MWh, 4MWh or other values of the energy storage device.
Because the electric energy consumed by the electrolysis device under the initial capacity of the electrolysis device is far greater than the electric energy consumed by the energy storage device under the initial capacity of the energy storage device, such as the electric energy generated by the wind power device, the electric energy required to be distributed to the electrolysis device and the energy storage device accounts for 80% of the generated electric energy, and the rest 20% of the electric energy is uploaded to the power grid through the power transmission device, wherein the electrolysis device is required to be configured with 79% of the electric energy for electrolytic hydrogen production, the electric energy stored by the energy storage device accounts for only 1%, and the electric energy used by the energy storage device is negligible, so that the initial capacity of the electrolysis device is determined through the online electric quantity data. And the initial capacity of the energy storage device is obtained by taking a preset value as the initial capacity of the energy storage device.
In an alternative embodiment, the on-line electricity data refers to how much electricity to be uploaded to the grid is the amount of electricity generated by the wind power device, for example, 20%, 18%, or other values, and when the on-line electricity data is 20%, 20% of the electricity generated by the wind power device needs to be uploaded to the grid.
S102, carrying out iterative operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device based on preset internet power data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device until preset conditions are met, and obtaining the target capacity of the electrolysis device and the target capacity of the energy storage device.
Specifically, the initial capacity of the electrolysis device is obtained through the corresponding relation between the internet power data and the generated power of the wind power device and the initial capacity of the electrolysis device.
Specifically, the power generation of the wind power device may be obtained by inputting meteorological data into a trained neural network model. The training process of the trained neural network model refers to training the neural network model by taking the historical meteorological data as a training data set to obtain an output result which is consistent with a positive sample in the training set, namely the power generation power of the wind power device under the corresponding historical meteorological data. Wherein the neural network model is trained using historical meteorological data, thereby inputting the meteorological data as input data into the trained neural network model, the generation power of the wind power device is obtained by a mature technology, and the invention does not describe the technology in detail.
In an alternative embodiment, when simulating the wind power hydrogen production system under the initial capacity of the electrolysis device and the initial capacity of the energy storage device in a simulation manner, the output result of the wind power hydrogen production system under the initial capacity of the electrolysis device and the initial capacity of the energy storage device can be determined. And determining the capacity of the electrolysis device and the capacity of the energy storage device according to the output result of the wind power hydrogen production system, taking the determined capacity of the electrolysis device as the target capacity of the electrolysis device, and taking the determined capacity of the energy storage device as the target capacity of the energy storage device. The output result of the wind power hydrogen production system comprises: the method comprises the steps of capacity of an electrolysis device, value of the online electric quantity, capacity of an energy storage device, equivalent hydrogen production hours, shutdown time of the electrolysis device, power division interval, power fluctuation analysis and the like.
According to the embodiment, the target capacity of the electrolysis device and the target capacity of the energy storage device are determined by acquiring the internet power data and the corresponding relation between the internet power data and the generated power of the wind power device and the initial capacity of the electrolysis device, in the process, the generated power is acquired through a trained neural network model, the internet power data can ensure that a wind power hydrogen production system meets the regulations, and the target capacity of the target capacity energy storage device of the electrolysis device is determined through the corresponding relation, so that data support can be provided for reasonably configuring the capacity of the electrolysis device and the capacity of the energy storage device in the follow-up implementation.
S103, acquiring first charge and discharge power of the energy storage device, and first working power and second working power of the electrolysis device.
Specifically, the generated power of the wind power device refers to the generated power of the wind power device in the wind power hydrogen production system when the target capacity of the electrolysis device is taken as the capacity of the electrolysis device and the target capacity of the energy storage device is taken as the capacity of the energy storage device.
Specifically, the first charge-discharge power of the energy storage device refers to a maximum value of charge-discharge power of the energy storage device in the wind power hydrogen production system when the target capacity of the electrolysis device is taken as the capacity of the electrolysis device and the target capacity of the energy storage device is taken as the capacity of the energy storage device, and the first charge-discharge power of the energy storage device is related to the target capacity of the energy storage device, that is, when the scale and the charge-discharge multiplying power of the energy storage device are determined, the first charge-discharge power of the energy storage device can be determined by the scale and the charge-discharge multiplying power of the energy storage device, for example, when the scale of the energy storage device is 5mwh and 0.5C charge-discharge, the first charge-discharge power of the energy storage device is 2.5MW and charge or discharge is 2 hours, and it should be understood that the charge-discharge multiplying power of the energy storage device includes but is not limited to 0.5C and can be determined according to practical working conditions.
Specifically, the first working power of the electrolysis device refers to the maximum power of the operation of the electrolysis device in the wind power hydrogen production system when the target capacity of the electrolysis device is taken as the capacity of the electrolysis device and the target capacity of the energy storage device is taken as the capacity of the energy storage device.
Specifically, the second working power of the electrolysis device refers to the minimum power of the electrolysis device in the wind power hydrogen production system with the target capacity of the electrolysis device as the capacity of the electrolysis device and the target capacity of the energy storage device as the energy storage device.
Specifically, the method for obtaining the power generation of the wind power device, the first charge and discharge power of the energy storage device, and the first working power and the second working power of the electrolysis device belongs to a mature technology, and the invention is not described in detail.
S104, dividing an operation interval of the wind power hydrogen production system according to the generated power and the second working power, wherein the operation interval of the wind power hydrogen production system comprises: a first power operation interval and a second power operation interval.
Specifically, dividing the operation interval of the wind power hydrogen production system according to the generated power and the second working power refers to classifying the wind power hydrogen production system according to the influence degree of the generated power on the wind power hydrogen production system.
Specifically, the first power operation interval refers to the interval in which the electrolysis device can normally operate; or that the electrolyzer may be operated at high power in this interval. The second power operation interval means that in the interval, the electrolysis device may be stopped or the electrolysis device cannot be operated only by virtue of the generated power; or that the electrolyzer may be shut down or kept running at only a minimum power during this interval.
S105, determining target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge and discharge power, the first working power and the second working power, wherein the target control parameters comprise at least one parameter in a first power operation area or a second power operation area, and the at least one parameter is used for adjusting the operation power of the electrolysis device, the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device.
Specifically, determining target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge-discharge power, the first working power and the second working power comprises: determining a first target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the relative sizes of the generated power, the first charge-discharge power, the first working power and the second working power; and determining a second target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device by the relative magnitudes of the generated power, the first charge-discharge power, the first working power and the second working power. The first target control parameter is used for reflecting at least one parameter in a first power operation interval, and the second target control parameter is used for reflecting at least one parameter in a second power operation interval.
According to the embodiment, the generated power, the first charge and discharge power, the first working power and the second working power are obtained under the determined target capacity of the electrolysis device and the determined target capacity of the energy storage device, so that the working conditions of the wind power hydrogen production system are divided through the generated power and the second working power of the electrolysis device, and the control parameters of the first power operation interval and the second power operation interval are regulated and controlled respectively, thereby realizing reasonable configuration of the capacity of the electrolysis device and the capacity of the energy storage device, regulating and controlling the control parameters in the wind power hydrogen production system, reducing the start-stop frequency of the electrolysis device, and effectively prolonging the service life of the electrolysis device.
In an alternative embodiment, to ensure accuracy of the target capacity configuration of the electrolysis device and the target capacity configuration of the energy storage device, based on preset online power data, the generated power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device, performing iterative operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device until a preset condition is met, to obtain the target capacity of the electrolysis device and the target capacity of the energy storage device, including:
(1) Based on the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device, the simulated online electric quantity data and the equivalent hydrogen production hours of the electrolysis device are generated.
Specifically, if the generated power of the wind power device is greater than the initial capacity of the electrolysis device, the additional generated power may charge and/or surf the internet for the energy storage device. If the power generated by the wind power device is smaller than the initial capacity of the electrolysis device and is insufficient to maintain the continuous operation of the electrolysis device, the energy storage device can charge the electrolysis device to maintain the continuous operation of the electrolysis device. If the wind power device and the energy storage device can not maintain the continuous operation of the electrolysis device, the electrolysis device is stopped at the moment. The simulated online electric quantity data and the equivalent hydrogen production hours of the electrolysis device are obtained through calculation of the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device.
(2) And comparing the simulated internet power data with the preset internet power data, and adjusting the initial capacity of the electrolysis device based on the comparison result until the difference value between the simulated internet power data and the preset internet power data meets a first preset condition, so as to obtain the target capacity of the electrolysis device.
Specifically, the online electric quantity data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device have an association relation, and the electric energy uploaded to the power grid under the power generation power and the initial capacity of the electrolysis device is in accordance with the online electric quantity data. For example, taking the predicted online electric quantity data as 20%, the scale of the electrolysis device as 50MW, the first preset condition is that the difference between the simulated online electric quantity data and the preset online electric quantity data is less than 3%, and the operation under the generated power is taken as an example, if the simulated online electric quantity data is, for example, 15%, it is indicated that the electric energy consumed by the electrolysis device is too much, so that the electric energy uploaded to the power grid is reduced, and in this case, the initial capacity of the electrolysis device should be reduced, so that the simulated online electric quantity data accords with the first preset condition; if the simulated internet power data is 25%, for example, it indicates that the power consumed by the electrolysis device is too low, so that the power uploaded to the power grid is increased, and in this case, the initial capacity of the electrolysis device should be increased so that the simulated internet power data meets the first preset condition. It should be noted that, the person skilled in the art may determine the first preset condition according to the actual situation, which is not limited herein.
(3) Comparing the equivalent hydrogen production hours of the electrolysis device with a preset threshold value, and adjusting the initial capacity of the energy storage device based on the comparison result until the difference value between the equivalent hydrogen production hours of the electrolysis device and the preset threshold value meets a second preset condition, so as to obtain the target capacity of the energy storage device.
Specifically, according to the existing theory, the capacity of the energy storage device is inversely related to the equivalent hydrogen production hours of the electrolysis device, but the capacity of the energy storage device is positively related to the cost, so that the equivalent hydrogen production hours of the electrolysis device and the cost need to be balanced, and the capacity of the proper energy storage device is determined. The present embodiment sets the preset threshold and the second preset condition as the determination condition for determining the target capacity of the energy storage device. The preset threshold and the second preset condition can be set by those skilled in the art according to actual needs, and the present invention is not limited herein. In this embodiment, the preset threshold is 3000 hours, and the second preset condition is that the difference between the equivalent hydrogen production hours of the electrolysis device and the preset threshold is less than 300 hours. If the equivalent hydrogen production hours of the electrolyzer is 2600 hours, it is indicated that the capacity of the energy storage device is too small to maintain the effective operating time of the electrolyzer, and the capacity of the energy storage device can be adjusted to be increased until a second preset condition is met.
Specifically, if the number of equivalent hydrogen production hours of the electrolysis device needs to be greater than the preset threshold, the second preset condition may be set such that the difference between the number of equivalent hydrogen production hours of the electrolysis device and the preset threshold is greater than zero.
Specifically, the third preset condition when the number of equivalent hydrogen production hours of the electrolysis apparatus is greater than the preset threshold may be the same as or different from the fourth preset condition when the number of equivalent hydrogen production hours of the electrolysis apparatus is less than the preset threshold, and may be set by those skilled in the art according to actual conditions, without limitation.
Through implementation of the embodiment, through presetting the online electric quantity data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device, iterative operation is carried out on the initial capacity of the electrolysis device and the initial capacity of the energy storage device until preset conditions are met, and the target capacity of the electrolysis device and the target capacity of the energy storage device are obtained, so that reasonable configuration of the capacity of the electrolysis device and the capacity of the energy storage device is achieved, the start-stop frequency of the electrolysis device is reduced, and the service life of the electrolysis device is effectively prolonged.
In an alternative embodiment, for more accurate control of the system after capacity allocation, dividing an operation interval of the wind power hydrogen production system according to the generated power and the second working power includes:
(1) And determining the influence degree of the generated power on the wind power hydrogen production system through the relative sizes of the generated power and the second working power.
Specifically, determining the influence degree of the generated power on the wind power hydrogen production system by the relative magnitudes of the generated power and the second working power means that when the generated power is greater than or equal to the second working power, that is, when the generated power is greater than or equal to the minimum operating power of the electrolysis device, the generated power at the moment can ensure that the electrolysis device operates at least with the minimum power of the electrolysis device, that is, the influence degree of the generated power on the wind power hydrogen production system is at least with the minimum power of the electrolysis device.
Specifically, by the relative magnitudes of the generated power and the second working power, determining the influence degree of the generated power on the wind power hydrogen production system means that when the generated power is smaller than the second working power, that is, when the generated power is smaller than the minimum operation power of the electrolysis device, the electrolysis device cannot be operated only by the generated power, that is, the influence degree of the generated power on the wind power hydrogen production system is that the electrolysis device may be stopped, and the electrolysis device cannot be operated only by the generated power.
(2) Based on the influence degree, classifying the wind power hydrogen production system to obtain a first power operation interval and a second power operation interval.
Specifically, the first power operation interval refers to the interval in which the electrolysis device can normally operate; the second power operation interval means that the electrolysis device may be stopped or the electrolysis device may not be operated by means of the generated power alone in the interval.
Through implementation of the embodiment, the wind power hydrogen production system is classified according to the influence degree of the generated power on the wind power hydrogen production system by the relative sizes of the generated power and the second working power, and the first power operation interval and the second power operation interval are obtained, so that the working state of an electrolysis device in the wind power hydrogen production system is divided into different operation intervals, the system with the capacity being configured is accurately controlled, and the start-stop frequency of the electrolysis device is reduced to provide a data basis.
In an alternative embodiment, the target control parameters include a first target control parameter for reflecting at least one parameter in the first power operation interval.
Determining target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge-discharge power, the first working power and the second working power, wherein the target control parameters comprise:
(1) And obtaining the residual electric quantity and the second capacity of the energy storage device.
Specifically, the second capacity of the energy storage device is used to indicate that the state of charge of the energy storage device is 1, that is, the remaining capacity of the energy storage device is 100%.
Specifically, the remaining power of the energy storage device is used for representing the energy storage state of the energy storage device, that is, when the energy storage device reaches the second capacity, the energy storage device cannot continue to store electric energy; when the residual electric quantity of the energy storage device does not reach the second capacity, the energy storage device can consume the electric energy generated by the wind power device and store the electric energy.
Specifically, in the first power operation interval, the purpose of obtaining the remaining power of the energy storage device is to confirm whether the energy storage device can consume the electric energy generated by the wind power device. Because the generated power may exceed the maximum power of the electrolyzer under the target capacity of the electrolyzer due to the fluctuation characteristics of the wind power plant, the energy storage device is required to consume the electric energy generated by the wind power plant, i.e. the first operating power of the electrolyzer under the condition that the generated power of the wind power plant exceeds the target capacity of the electrolyzer, and when the energy storage device can store energy, the energy storage device is utilized to consume the electric energy generated by the wind power plant.
(2) And determining a first target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device by the relative sizes of the generated power, the first charge and discharge power, the first working power and the second working power based on the residual electric quantity.
Specifically, the power generation power of the wind power device is recorded as Pw, the internet power of the power transmission device is recorded as Pnet, the operation power of the electrolysis device is recorded as Pe, the first operation power of the electrolysis device is recorded as Pemax, the second operation power of the electrolysis device is recorded as Pemin, the first charge and discharge power of the energy storage device is recorded as Pbmax, the second charge and discharge power of the energy storage device is recorded as Pb, the residual electric quantity of the energy storage device is recorded as SOC, and the second capacity of the energy storage device is recorded as SOCmax, wherein Pemin is less than or equal to Pemax and Pb is less than or equal to Pbmax.
In an alternative embodiment, based on the remaining power and the second capacity, determining a first target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device by the relative magnitudes of the generated power, the first charge-discharge power, the first working power and the second working power includes:
when the residual electric quantity reaches the second capacity, the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device are regulated.
Specifically, when the remaining electric quantity reaches the second capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device, including:
when SOC is more than or equal to SOCmax and Pw is more than Pemax, the fact that the electric energy generated by the wind power device is excessive and the energy storage device is full is indicated, namely, the energy storage device is not required to be charged, and in order to enable the electric energy generated by the wind power device to be fully consumed, the excessive electric energy is required to be uploaded to a power grid by the aid of the electricity transmission device. In this case, pe=pemax, pb=0, pnet=pw-Pemax is adjusted.
When SOC is greater than or equal to SOCmax and Pw is greater than or equal to Pemin+Pbmax, the generated power is in the running power range of the electrolysis device, the energy storage device is full of electricity, namely the energy storage device is not required to be charged, the electric energy generated by the wind power device can be consumed by virtue of the electrolysis device, the electric energy is not required to be uploaded to a power grid, and in the case, pe=Pw, pb=0 and Pnet=0 are adjusted.
When SOC is greater than or equal to SOCmax, pw is less than Pemin+Pbmax, and Pw is greater than or equal to Pemin, the generated power is in the running power range of the electrolysis device, the energy storage device is full of electricity, namely the energy storage device is not required to be charged, electric energy generated by the wind power device can be consumed by the electrolysis device, the electric energy is not required to be uploaded to a power grid, and in the case, pe=Pw, pb=0 and Pnet=0 are adjusted.
And when the residual electric quantity does not reach the second capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device.
Specifically, when the remaining electric quantity does not reach the second capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device, including:
when SOC is smaller than SOCmax and Pw-Pemax is larger than or equal to Pbmax, the fact that the electric energy generated by the wind power device is excessive is indicated, the electric energy generated by the wind power device cannot be consumed only by the electrolysis device and the energy storage device, the electric energy needs to be uploaded to a power grid, and the energy storage device can continue to store energy to charge the energy so as to cope with the condition of insufficient power generation in advance, so that the start-stop frequency of the electrolytic hydrogen production unit is effectively reduced, and in the condition, pe=Pemax, pb=Pbmax and Pnet=Pw-Pemax-Pbmax are adjusted.
When SOC < SOCmax and Pw-Pemax < Pbmax, it is indicated that the electric energy generated by the wind power plant is excessive, but the electric energy generated by the wind power plant can be consumed by the electrolysis device and the energy storage device without uploading the electric energy to the grid, in which case pe=pemax, pb=pw-Pemax, pnet=0.
When SOC is smaller than SOCmax and Pw is larger than or equal to Pemin+Pbmax, the generated power is in the running power range of the electrolysis device, and the energy storage device can continue to store energy, so that the situation of insufficient generated power can be dealt with in advance, the start-stop frequency of the electrolysis hydrogen production unit is effectively reduced, the electric energy generated by the wind power device can be consumed by means of the electrolysis device and the energy storage device, the electric energy is not required to be uploaded to a power grid, and Pb=Pbmax, pe=pw-Pbmax and Pnet=0 are adjusted under the situation.
When SOC is smaller than SOCmax, pw is smaller than Pemin+Pbmax, and Pw is larger than or equal to Pemin, the generated power is in the running power range of the electrolysis device, and the energy storage device can continue to store energy, so that the energy storage device can be charged to deal with the condition of insufficient generated power in advance on the premise of ensuring the running of the electrolysis device, the start-stop frequency of the electrolysis hydrogen production unit is effectively reduced, the electric energy generated by the wind power device can be consumed by the electrolysis device and the energy storage device, the electric energy does not need to be uploaded to a power grid, and in the condition, pe=Pemin, pb=Pw-Pemin and Pnnet=0 are adjusted.
In an alternative embodiment, the target control parameters include a second target control parameter for reflecting at least one parameter in a second power operating interval.
Determining target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge-discharge power, the first working power and the second working power, wherein the target control parameters comprise:
(1) And obtaining the residual electric quantity, the first capacity and the second capacity of the energy storage device.
Specifically, the first capacity of the energy storage device is used to indicate that when the state of charge of the energy storage device is 0, that is, the remaining capacity of the energy storage device is 0%, and is denoted as SOCmin. In the second power operation interval, the purpose of obtaining the residual electric quantity of the energy storage device is to confirm whether the energy storage device can supply power to the electrolysis device so as to enable the electrolysis device to be stopped. Because the generated power may not meet the minimum power for the electrolyzer to operate at the target capacity of the electrolyzer due to the fluctuating nature of the wind power plant, it is desirable that the energy storage device and wind power plant together provide electrical energy to the electrolyzer to maintain at least the minimum power operation of the electrolyzer.
The remaining capacity and the second capacity of the energy storage device are the same as those in the above embodiments, and the disclosure will not be repeated here.
(2) And determining a second target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device by the relative sizes of the generated power, the first charge-discharge power, the first working power and the second working power based on the residual electric quantity, the first capacity and the second capacity.
Specifically, since the generated power in the second power operation interval is smaller than the second operating power of the electrolysis device, that is, the electrolysis device cannot be operated only by the wind power device in the second power operation interval, the electrolysis device needs to be operated by discharging the energy storage device.
In an alternative embodiment, based on the remaining power, the first capacity, and the second capacity, determining, by the relative magnitudes of the generated power, the first charge-discharge power, the first operating power, and the second operating power, a second target control parameter of the wind power hydrogen production system at the target capacity of the electrolysis device and the target capacity of the energy storage device includes:
when the residual electric quantity reaches the second capacity, the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device are regulated.
When the residual electric quantity reaches the second capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device, wherein the method comprises the following steps of:
when SOC is more than or equal to SOCmax and Pw-Pemin is more than or equal to Pbmax, the electric energy generated by the wind power device is insufficient, the electric quantity of the energy storage device is sufficient, and the minimum running power of the electrolysis device can be met by means of discharging the energy storage device, namely, the electrolysis device can be kept to be stopped through the energy storage device and the wind power device, and in the case, pe=Pemin, pb=Pw-Pemin and Pnet=0 are adjusted.
When SOC is larger than or equal to SOCmax and Pw-Pemin < -Pbmax, the electric energy generated by the wind power device is insufficient, the electric quantity of the energy storage device is sufficient, the minimum running power of the electrolysis device cannot be met by means of discharging the energy storage device, namely, the electrolysis device does not need to be charged, and cannot run, and is in a shutdown state, the electric energy generated by the wind power device cannot be consumed, so that the electric energy needs to be uploaded to a power grid, and in this case, pe=0, pb=0 and Pnet=Pw are adjusted.
When the residual electric quantity does not reach the second capacity and the residual electric quantity reaches the first capacity, the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device are regulated.
Specifically, when the remaining electric quantity does not reach the second capacity and the remaining electric quantity reaches the first capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device, including:
when SOCmin is less than or equal to SOC and less than SOCmax, and Pw-Pemin is more than or equal to Pbmax, the condition that the electric energy generated by the wind power device is insufficient at the moment is indicated, and the energy storage device can store energy, but the minimum running power of the electrolysis device can be met by means of discharging the energy storage device, namely, the electrolysis device can be kept to be stopped through the energy storage device and the wind power device, and in the condition, pe=Pemin, pb=pw-Pemin and Pnet=0 are adjusted.
When SOCmin is less than or equal to SOC and less than SOCmax, pw-Pemin is less than or equal to Pbmax, the fact that the electric energy generated by the wind power device is insufficient at the moment is indicated, and the minimum running power of the electrolysis device cannot be met by means of discharging of the energy storage device, but the energy storage device can store energy, namely the electrolysis device cannot be kept to be stopped through the energy storage device and the wind power device, and the generated power of the wind power device is less than or equal to the maximum charging power of the energy storage device, so that the electric energy generated by the wind power device can be consumed by the energy storage device, and in the case, pe=0, pb=Pw and Pnet=0 are adjusted.
When SOCmin is less than or equal to SOC and less than SOCmax, pw-Pemin is less than-Pbmax, and Pw is more than Pbmax, the fact that the electric energy generated by the wind power device is insufficient at the moment is indicated, and the minimum running power of the electrolysis device cannot be met by means of discharging of the energy storage device. That is, the electrolysis device cannot be kept stationary by the energy storage device and the wind power device, and the generated power of the wind power device is greater than the maximum charge power of the energy storage device, in which case pe=0, pb=pbmax, pnet=pw-Pbmax is adjusted.
And when the residual electric quantity does not reach the second capacity and the residual electric quantity does not reach the first capacity, adjusting the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device.
Specifically, when the remaining electric quantity does not reach the second capacity and the remaining electric quantity does not reach the first capacity, adjusting the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device, including:
when SOC < SOCmin and Pw is less than or equal to Pbmax, it indicates that the electric energy generated by the wind power device is insufficient at this time, and the energy storage device cannot provide electric energy because the remaining electric quantity of the energy storage device does not reach the first capacity, but the energy storage device can also store energy, that is, the electrolysis device cannot be kept uninterrupted by the energy storage device and the wind power device, and the generated power of the wind power device is less than or equal to the maximum charging power of the energy storage device, so that the electric energy generated by the wind power device can be consumed by the energy storage device, in this case, pe=0, pb=pw, and pnet=0.
When SOC < SOCmin and Pw > Pbmax, the electric energy generated by the wind power device is insufficient, and the energy storage device cannot provide electric energy because the residual electric quantity of the energy storage device does not reach the first capacity, and the energy storage device can store energy, but the generated power of the wind power device exceeds the first charge and discharge power of the energy storage device, so that the redundant electric quantity needs to be uploaded to the power grid. That is, the electrolysis device cannot be kept stationary by the energy storage device and the wind power device, and the generated power of the wind power device is greater than the maximum charge power of the energy storage device, in which case pe=0, pb=pbmax, pnet=pw-Pbmax is adjusted.
By implementing the embodiment, the control strategies of the wind power hydrogen production system in the first power operation interval and the second power operation interval are respectively formulated, and the energy storage device is charged so as to deal with the condition of insufficient power generation in advance, thereby reducing the shutdown time of the electrolysis unit and effectively reducing the startup and shutdown frequency of the electrolysis unit.
In an alternative embodiment, in order to ensure that the determined target capacity of the electrolysis device and the target capacity of the energy storage device meet the specification of the wind power hydrogen production system, that is, ensure that the capacity of the electrolysis device and the capacity of the energy storage device are reasonably configured, after determining the target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge-discharge power, the first working power and the second working power, the method further comprises:
(1) Determining an output result of the wind power hydrogen production system based on target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device, wherein the output result comprises: the method comprises the steps of capacity of an electrolysis device, value of the online electric quantity, capacity of an energy storage device, equivalent hydrogen production hours, shutdown time of the electrolysis device, power division interval, power fluctuation analysis and the like.
Specifically, the output result of the wind power hydrogen production system refers to the statistical result within the preset time.
(2) And comparing the difference value with a specified threshold value of the wind power hydrogen production system according to the output result of the wind power hydrogen production system, and if the difference value is within a certain range, determining the electric energy generated by the wind power device, wherein the electric energy is fully utilized by the electrolysis device and the energy storage device under the target capacity of the electrolysis device and the target capacity of the energy storage device.
Specifically, the specified threshold values of the wind power hydrogen production system include: a threshold value of equivalent hours for wind power hydrogen production, a threshold value of the shutdown time of an electrolysis device, and the like. Taking the threshold value of the equivalent hydrogen production hours of wind power as an example, if the equivalent hydrogen production hours in the output result is less than 3000 hours, the electric energy generated by the wind power device is considered to be not fully utilized by the electrolysis device and the energy storage device under the target capacity of the electrolysis device and the target capacity of the energy storage device. Or taking the shutdown time threshold of the electrolysis device as an example, if the shutdown time of the electrolysis device in the output result is longer than 300 hours, the electric energy generated by the wind power device is considered to be not fully utilized by the electrolysis device and the energy storage device under the target capacity of the electrolysis device and the target capacity of the energy storage device.
(3) And if the difference exceeds a certain range, respectively adjusting the target capacity of the electrolysis device and the target capacity of the energy storage device according to a preset first value.
Specifically, the preset first value may be selected according to an actual working condition, which is not specifically limited by the present invention. If the difference exceeds a certain range, respectively adjusting the target capacity of the electrolysis device and the target capacity of the energy storage device by a preset first value, namely, determining the target capacity of a new electrolysis device of the electrolysis device again through the first preset value and the target capacity of the original electrolysis device, and determining the target capacity of the new energy storage device of the energy storage device again through the first preset value and the target capacity of the original energy storage device.
The embodiment provides another control method of a wind power hydrogen production system, as shown in fig. 3, including:
s201, acquiring target capacity of the electrolysis device and target capacity of the energy storage device.
S202, acquiring first charge and discharge power of an energy storage device, and first working power and second working power of an electrolysis device.
S203, dividing the operation interval of the wind power hydrogen production system according to the generated power and the second working power, and determining target control parameters.
S204, determining an output result of the wind power hydrogen production system. The output result comprises: the capacity of the electrolysis device, the online electric quantity, the capacity of the energy storage device, the equivalent hydrogen production hours, the shutdown time of the electrolysis device, the power division interval, the power fluctuation analysis and the like.
S205, judging a threshold value.
Specifically, the threshold value judgment may be to judge whether the equivalent hydrogen production hours number reaches the equivalent hydrogen production hours number specified by the wind power hydrogen production system, or whether the shutdown time of the electrolysis device exceeds the shutdown time specified by the wind power hydrogen production system, or the like. If the difference value is within a certain range, determining that the electric energy generated by the wind power device is fully utilized by the electrolysis device and the energy storage device under the target capacity of the electrolysis device and the target capacity of the energy storage device.
Specifically, if the difference exceeds a certain range, taking the sum or the difference of the preset first value and the target capacity of the electrolysis device as the target capacity of the new electrolysis device and taking the sum/the difference of the preset first value and the target capacity of the energy storage device as the target capacity of the new energy storage device respectively. And determining the output result of the wind power hydrogen production system again under the condition of the target capacity of the new electrolysis device and the target capacity of the new energy storage device, and judging the threshold value. The above steps are specifically referred to the related descriptions in the above embodiments, and will not be repeated.
S206, ending when the output result of the system meets the specified threshold value of the wind power hydrogen production system.
By implementing the embodiment, the output result of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device is determined, so that whether the configuration of the target capacity of the electrolysis device and the target capacity of the energy storage device is reasonable or not is determined by comparing the output result with the specified threshold value of the wind power hydrogen production system, and under the unreasonable condition, the capacity of the electrolysis device and the capacity of the energy storage device are determined again through the first preset value until the capacity configuration is reasonable, and the reasonable configuration of the target capacity of the electrolysis device and the configuration of the target capacity of the energy storage device is ensured.
The embodiment provides a control device of a wind power hydrogen production system, as shown in fig. 4, the device includes: a capacity acquisition module 21, an iterative operation module 22, a power acquisition module 23, a section division module 24 and a parameter control module 25, wherein,
the capacity acquisition module 21 is configured to acquire preset online electric quantity data, a power generation power of the wind power device, an initial capacity of the electrolysis device, and an initial capacity of the energy storage device, where the online electric quantity data is used to reflect a relationship between an electric quantity uploaded to the power grid and an electric generation capacity of the wind power device. The specific process may be referred to the related description of step S101 in the above embodiment, and will not be repeated here.
The iterative operation module 22 is configured to perform iterative operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device based on preset online power data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device until a preset condition is satisfied, so as to obtain a target capacity of the electrolysis device and a target capacity of the energy storage device. The specific process may be referred to the related description of step S102 in the above embodiment, and will not be repeated here.
The power obtaining module 23 is configured to obtain a first charge and discharge power of the energy storage device, a first operating power and a second operating power of the electrolysis device. The specific process may be referred to the related description of step S103 in the above embodiment, and will not be repeated here.
The interval dividing module 24 is configured to divide an operation interval of the wind power hydrogen production system according to the generated power and the second working power, where the operation interval of the wind power hydrogen production system includes: a first power operation interval and a second power operation interval. The specific process may be referred to the related description of step S104 in the above embodiment, and will not be repeated here.
The parameter control module 25 is configured to determine, according to the generated power, the first charge-discharge power, the first working power, and the second working power, a target control parameter of the wind power hydrogen generation system under the target capacity of the electrolysis device and the target capacity of the energy storage device, where the target control parameter includes at least one parameter in the first power operation region or the second power operation region, and the at least one parameter is used to adjust the operation power of the electrolysis device, the second charge-discharge power of the energy storage device, and the internet power of the electricity transmission device. The specific process may be referred to the related description of step S105 in the above embodiment, and will not be repeated here.
According to the embodiment, corresponding parameters are acquired through the capacity acquisition module and the power acquisition module, wherein the generation power, the first charge and discharge power, the first working power and the second working power are acquired under the determined target capacity of the electrolysis device and the determined target capacity of the energy storage device, so that the working conditions of the wind power hydrogen production system are divided by the section dividing module through the generation power and the second working power of the electrolysis device, and the control parameters of the first power operation section and the second power operation section are regulated and controlled respectively through the parameter control module, so that the capacity of the electrolysis device and the capacity of the energy storage device are reasonably configured, the control parameters in the wind power hydrogen production system are regulated and controlled, the start-stop frequency of the electrolysis device is reduced, and the service life of the electrolysis device is effectively prolonged.
As an alternative embodiment, the iterative operation module 22 includes:
the generation module is used for generating simulated online electric quantity data and equivalent hydrogen production hours of the electrolysis device based on the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
The first adjustment module is used for comparing the simulated internet power data with the preset internet power data, and adjusting the initial capacity of the electrolysis device based on the comparison result until the difference value between the simulated internet power data and the preset internet power data meets a first preset condition, so as to obtain the target capacity of the electrolysis device. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
The second adjusting module is used for comparing the equivalent hydrogen production hours of the electrolysis device with a preset threshold value, and adjusting the initial capacity of the energy storage device based on the comparison result until the difference value between the equivalent hydrogen production hours of the electrolysis device and the preset threshold value meets a second preset condition, so as to obtain the target capacity of the energy storage device. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
As an alternative embodiment, the interval dividing module 24 includes:
the first determining module is used for determining the influence degree of the generated power on the wind power hydrogen production system through the relative sizes of the generated power and the second working power. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
The classification module is used for classifying the wind power hydrogen production system based on the influence degree to obtain a first power operation interval and a second power operation interval. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
As an alternative embodiment, the target control parameters include a first target control parameter for reflecting at least one parameter in the first power operation interval, and the parameter control module 25 includes:
the first acquisition module is used for acquiring the residual electric quantity and the second capacity of the energy storage device. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
The second determining module is used for determining a first target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the relative sizes of the generated power, the first charge and discharge power, the first working power and the second working power based on the residual electric quantity and the second capacity. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
As an alternative embodiment, the second determining module includes:
the first adjusting module is used for adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device when the residual electric quantity reaches the second capacity. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
And the second adjusting module is used for adjusting the running power of the electrolysis device, the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device when the residual electric quantity does not reach the second capacity. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
As an alternative embodiment, the target control parameters include a second target control parameter for reflecting at least one parameter in a second power operation interval, and the parameter control module 25 includes:
and the third acquisition module is used for acquiring the residual electric quantity, the first capacity and the second capacity of the energy storage device. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
The third determining module is used for determining a second target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the relative sizes of the generated power, the first charge-discharge power, the first working power and the second working power based on the residual electric quantity, the first capacity and the second capacity. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
As an alternative embodiment, the third determining module includes:
And the third adjusting module is used for adjusting the running power of the electrolysis device, the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device when the residual electric quantity reaches the second capacity. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
And the fourth adjusting module is used for adjusting the running power of the electrolysis device, the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device when the residual electric quantity does not reach the second capacity and the residual electric quantity reaches the first capacity. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
And the fifth adjusting module is used for adjusting the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device when the residual electric quantity does not reach the second capacity and the residual electric quantity does not reach the first capacity. The specific process may be referred to the description of the corresponding parts in the above embodiments, and will not be repeated here.
An embodiment of the present invention further provides a computer storage medium, where computer executable instructions are stored, where the computer executable instructions may perform a control method of a wind power hydrogen production system in any of the above method embodiments. The storage medium may be a magnetic Disk, an optical disc, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a Flash Memory (Flash Memory), a Hard Disk (HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
An embodiment of the present invention further provides an electronic device, as shown in fig. 5, where fig. 5 is a schematic structural diagram of an electronic device provided in an alternative embodiment of the present invention, and the electronic device may include at least one processor 31, at least one communication interface 32, at least one communication bus 33, and at least one memory 34, where the communication interface 32 may include a Display screen (Display), a Keyboard (Keyboard), and the optional communication interface 32 may further include a standard wired interface and a wireless interface. The memory 34 may be a high-speed RAM memory (Random Access Memory, volatile random access memory) or a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 34 may alternatively be at least one memory device located remotely from the aforementioned processor 31. Wherein processor 31 may be in conjunction with the apparatus described in fig. 4, application programs are stored in memory 34, and processor 31 invokes program code stored in memory 34 for performing the steps of a control method of a wind power hydrogen production system as described in any of the method embodiments above.
The communication bus 33 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus, an extended industry standard architecture (extended industry standard architecture, EISA) bus, or the like. The communication bus 33 may be classified into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in fig. 5, but not only one bus or one type of bus.
Wherein the memory 34 may include volatile memory (RAM), such as random-access memory (RAM); the memory may also include a nonvolatile memory (non-volatile memory), such as a flash memory (flash memory), a hard disk (HDD) or a Solid State Drive (SSD); memory 34 may also include a combination of the types of memory described above.
The processor 31 may be a central processing unit (central processing unit, CPU), a network processor (network processor, NP) or a combination of CPU and NP, among others.
The processor 31 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (programmable logic device, PLD), or a combination thereof. The PLD may be a complex programmable logic device (complex programmable logic device, CPLD), a field-programmable gate array (field-programmable gate array, FPGA), general-purpose array logic (generic array logic, GAL), or any combination thereof.
Optionally, the memory 34 is also used for storing program instructions. The processor 31 may invoke program instructions to implement a method for controlling a wind power hydrogen production system according to any of the embodiments of the present invention.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (10)
1. A method for controlling a wind power hydrogen production system, the method comprising:
acquiring preset internet power data, the power generation power of a wind power device, the initial capacity of an electrolysis device and the initial capacity of an energy storage device, wherein the internet power data is used for reflecting the relation between the power uploaded to a power grid and the power generation capacity of the wind power device;
performing iterative operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device based on the preset internet-surfing electric quantity data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device until a preset condition is met, so as to obtain the target capacity of the electrolysis device and the target capacity of the energy storage device;
Acquiring first charge and discharge power of the energy storage device, and first working power and second working power of the electrolysis device;
dividing an operation interval of the wind power hydrogen production system according to the generated power and the second working power, wherein the operation interval of the wind power hydrogen production system comprises: a first power operation interval and a second power operation interval;
determining target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge-discharge power, the first working power and the second working power, wherein the target control parameters comprise at least one parameter in the first power operation area or the second power operation area, and the at least one parameter is used for adjusting the operation power of the electrolysis device, the second charge-discharge power of the energy storage device and the internet power of the electricity transmission device.
2. The method according to claim 1, wherein the performing iterative operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device based on the preset internet power data, the generated power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device until a preset condition is satisfied, to obtain a target capacity of the electrolysis device and a target capacity of the energy storage device, includes:
Generating simulated online electric quantity data and equivalent hydrogen production hours of the electrolysis device based on the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device;
comparing the simulated internet power data with the preset internet power data, and adjusting the initial capacity of the electrolysis device based on a comparison result until the difference value between the simulated internet power data and the preset internet power data meets a first preset condition to obtain the target capacity of the electrolysis device;
comparing the equivalent hydrogen production hours of the electrolysis device with a preset threshold value, and adjusting the initial capacity of the energy storage device based on the comparison result until the difference value between the equivalent hydrogen production hours of the electrolysis device and the preset threshold value meets a second preset condition, so as to obtain the target capacity of the energy storage device.
3. The method of claim 1, wherein the dividing the operating interval of the wind power generation system according to the generated power and the second operating power comprises:
determining the influence degree of the generated power on the wind power hydrogen production system according to the relative sizes of the generated power and the second working power;
And classifying the wind power hydrogen production system based on the influence degree to obtain a first power operation interval and a second power operation interval.
4. The method of claim 1, wherein the target control parameters include a first target control parameter for reflecting at least one parameter in the first power operation interval,
the determining, according to the generated power, the first charge-discharge power, the first working power, and the second working power, a target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device, includes:
obtaining the residual electric quantity and the second capacity of the energy storage device;
and determining a first target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the relative sizes of the generated power, the first charge and discharge power, the first working power and the second working power based on the residual electric quantity and the second capacity.
5. The method of claim 4, wherein the determining, based on the remaining power, a first target control parameter of the wind power hydrogen production system at a target capacity of the electrolysis device and a target capacity of the energy storage device from relative magnitudes of the generated power, the first charge-discharge power, the first operating power, and the second operating power comprises:
When the residual electric quantity reaches the second capacity, adjusting the running power of the electrolysis device, the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device;
and when the residual electric quantity does not reach the second capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device.
6. The method of claim 1, wherein the target control parameters include a second target control parameter for reflecting at least one parameter in the second power operation interval,
the determining, according to the generated power, the first charge-discharge power, the first working power, and the second working power, a target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device, includes:
acquiring the residual electric quantity, the first capacity and the second capacity of the energy storage device;
and determining a second target control parameter of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the relative sizes of the generated power, the first charge-discharge power, the first working power and the second working power based on the residual electric quantity, the first capacity and the second capacity.
7. The method of claim 6, wherein the determining, based on the remaining power, the first capacity, the second capacity, a second target control parameter of the wind power hydrogen production system at a target capacity of the electrolyzer and a target capacity of the energy storage device by relative magnitudes of the generated power, the first charge-discharge power, the first operating power, the second operating power, comprises:
when the residual electric quantity reaches the second capacity, adjusting the running power of the electrolysis device, the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device;
when the residual electric quantity does not reach the second capacity and the residual electric quantity reaches the first capacity, adjusting the running power of the electrolysis device, the second charging and discharging power of the energy storage device and the internet power of the electricity transmission device;
and when the residual electric quantity does not reach the second capacity and the residual electric quantity does not reach the first capacity, adjusting the second charge and discharge power of the energy storage device and the internet power of the electricity transmission device.
8. A control device for a wind power hydrogen production system, the device comprising:
The capacity acquisition module is used for acquiring preset internet power data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device, wherein the internet power data is used for reflecting the relation between the power uploaded to the power grid and the power generation capacity of the wind power device;
the iteration operation module is used for carrying out iteration operation on the initial capacity of the electrolysis device and the initial capacity of the energy storage device based on the preset internet power data, the power generation power of the wind power device, the initial capacity of the electrolysis device and the initial capacity of the energy storage device until preset conditions are met, so as to obtain the target capacity of the electrolysis device and the target capacity of the energy storage device;
the power acquisition module is used for acquiring the first charge and discharge power of the energy storage device, the first working power and the second working power of the electrolysis device;
the interval dividing module is configured to divide an operation interval of the wind power hydrogen production system according to the generated power and the second working power, where the operation interval of the wind power hydrogen production system includes: a first power operation interval and a second power operation interval;
the parameter control module is used for determining target control parameters of the wind power hydrogen production system under the target capacity of the electrolysis device and the target capacity of the energy storage device according to the generated power, the first charge-discharge power, the first working power and the second working power, wherein the target control parameters comprise at least one parameter in the first power operation area or the second power operation area, and the at least one parameter is used for adjusting the operation power of the electrolysis device, the second charge-discharge power of the energy storage device and the internet power of the electricity transmission device.
9. A computer readable storage medium storing computer instructions which, when executed by a processor, implement a method of controlling a wind power hydrogen production system as claimed in any one of claims 1 to 7.
10. An electronic device, comprising: at least one processor; and a memory communicatively coupled to the at least one processor;
wherein the memory stores instructions executable by the at least one processor that, when executed by the at least one processor, cause the electronic device to perform the control method of the wind power generation system of any of claims 1-7.
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