CN-122026443-A - Off-grid hydrogen production-based equipment hydrogenation method, device, equipment and storage medium

CN122026443ACN 122026443 ACN122026443 ACN 122026443ACN-122026443-A

Abstract

The application discloses a device hydrogenation method, a device, equipment and a storage medium based on off-grid hydrogen production, and relates to the field of wind power hydrogen production, comprising the steps of obtaining predicted information of device operation parameters and preset time periods, constructing a target hydrogen production control model, and inputting the predicted information of the device operation parameters and the preset time periods into the target hydrogen production control model to obtain a target scheduling strategy; generating a target hydrogen production instruction according to a current target scheduling strategy, so that preset hydrogen production equipment of the off-grid island system can produce hydrogen based on the target hydrogen production instruction, and provide hydrogen for the target equipment when equipment hydrogenation request of the target equipment is acquired, acquiring new prediction information based on a preset correction period, correcting the target scheduling strategy according to the new prediction information to obtain the new target scheduling strategy, and re-jumping to the step of generating the target hydrogen production instruction according to the current target scheduling strategy until a preset end condition is met. The renewable energy utilization rate and the autonomous hydrogen supply capacity of the hydrogen adding station are improved.

Inventors

CUI FENG
MA PENGNAN
Feng Lingchong
LIU HUAQING
LI XUEPING
ZHAO ZHIJIAN
JIANG TINGTING

Assignees

运达能源科技集团股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260203

Claims (10)

1. The equipment hydrogenation method based on off-grid hydrogen production is characterized by being applied to a central coordination controller of an off-grid island system, wherein a wind power generation subsystem, an electrochemical energy storage subsystem, an electrolytic hydrogen production subsystem and a hydrogen storage and hydrogenation service subsystem are integrated in the off-grid island system, and the method comprises the following steps: acquiring the predicted information of the equipment operation parameters and the preset time period, constructing a target hydrogen production control model, and inputting the predicted information of the equipment operation parameters and the preset time period into the target hydrogen production control model to obtain a target scheduling strategy; generating a target hydrogen production instruction according to the current target scheduling strategy so as to enable preset hydrogen production equipment of the off-grid island system to produce hydrogen based on the target hydrogen production instruction, and providing the produced hydrogen for target equipment when equipment hydrogenation request of the target equipment is acquired; Acquiring new prediction information based on a preset correction period, and correcting the target scheduling strategy after the end time node of the preset correction period in the preset period according to the new prediction information to obtain a new target scheduling strategy; And re-jumping to the step of generating the target hydrogen production instruction according to the current target scheduling strategy until the preset ending condition is met.
2. The off-grid hydrogen production-based facility hydrogenation method according to claim 1, wherein the prediction information comprises predicted wind power for a preset period of time provided based on numerical weather forecast, and a hydrogenation demand prediction curve generated based on hydrogenation station history data and/or reservation orders, and the facility operation parameters comprise an electrolytic tank rated power curve, an electrolytic tank rated efficiency curve, a battery charge and discharge efficiency safety interval, a battery state of charge safety interval and a hydrogen storage tank safety pressure range; Correspondingly, the step of inputting the equipment operation parameters and the prediction information of the preset period into the target hydrogen production control model to obtain a target scheduling strategy comprises the following steps: The hydrogen production and hydrogenation cost of the off-grid island system is obtained, wherein the hydrogen production and hydrogenation cost comprises the cost of a waste fan, the cycle depreciation cost of a battery and the equivalent cost of single start-stop of an electrolytic cell; Determining preset constraint conditions according to power balance, hydrogen energy dynamic balance, battery charge state change and equipment operation physical constraint in the operation of the off-grid island system; acquiring the current hydrogen storage amount of a hydrogen storage tank of the off-grid island system and the initial charge state of the electrochemical energy storage subsystem; Determining a preset hydrogen production control target, wherein the preset hydrogen production control target is used for minimizing the air discarding quantity, maximizing the service life of a battery and minimizing the start and stop of an electrolytic cell; constructing a target hydrogen production control model based on the preset hydrogen production control target and the hydrogen production hydrogenation cost of the off-grid island system; inputting the predicted information, the equipment operation parameters, the current hydrogen storage amount, the initial charge state and the preset constraint condition into the target hydrogen production control model, and outputting a target scheduling strategy of the preset period, wherein the target scheduling strategy comprises an electrolytic cell reference power sequence, a battery charging and discharging power plan, a hydrogen storage amount target track and an electrolytic cell start-stop state sequence.
3. The off-grid hydrogen production-based device hydrogenation method according to claim 2, wherein said inputting the prediction information, the device operation parameters, the current hydrogen storage amount, the initial state of charge, and the preset constraint condition into the target hydrogen production control model, outputting a target scheduling policy for the preset period of time, comprises: Inputting the prediction information, the equipment operation parameters, the current hydrogen storage amount, the initial charge state and the preset constraint conditions into the target hydrogen production control model; when the sum of the product of the cost of the air rejection machine and the electric quantity of the air rejection machine, the product of the cycle depreciation cost of the battery and the deviation of the state of charge, and the product of the single start-stop equivalent cost of the electrolytic cell and the start-stop indicating variable of the electrolytic cell meets the preset minimum condition, planning the reference power of the electrolytic cell, the charge-discharge power of the battery, the hydrogen storage quantity and the start-stop state of the electrolytic cell in each hour in the preset period; And outputting the target scheduling strategy of the preset time period according to the planning result.
4. The off-grid hydrogen production-based device hydrogenation method according to claim 1, wherein said correcting the target scheduling policy after the end time node of the preset correction period in the preset period according to the new prediction information, to obtain the new target scheduling policy, includes: monitoring an off-grid island system to obtain real-time hydrogen production and hydrogenation information of the off-grid island system, wherein the real-time hydrogen production and hydrogenation information comprises actual measurement of wind power generation capacity and hydrogenation amount of implementation equipment; Judging whether the deviation between the target scheduling strategy and the real-time hydrogen production hydrogenation information is larger than a preset threshold value or not; If yes, correcting the target scheduling strategy after the end time node of the preset correction period in the preset period based on the new prediction information to obtain a new target scheduling strategy; If not, continuing to produce hydrogen based on the current target scheduling strategy, and providing the produced hydrogen for the target equipment when the equipment hydrogenation request of the target equipment is acquired.
5. The off-grid hydrogen-based plant hydrogenation process of claim 4, further comprising: determining a preset protection mechanism threshold value of preset equipment in the off-grid island system; judging whether the real-time hydrogen production hydrogenation information is larger than the preset protection mechanism threshold value of any preset device or not; If yes, immediately starting a preset protection mechanism, wherein the preset protection mechanism comprises any one or more of immediately cutting off power supply operation of the electrolytic tank, closing an electromagnetic valve operation of a hydrogen pipeline, starting ventilation operation and starting nitrogen purging system operation.
6. The off-grid hydrogen-based plant hydrogenation process according to any one of claims 1 to 5, further comprising: determining a preset power coordination mechanism of the off-grid island system, wherein the preset power coordination mechanism comprises any one or more of a power deviation compensation mechanism, a hydrogenation event response mechanism and a bus voltage stabilization mechanism; and dynamically compensating fluctuation of wind power generation power and equipment hydrogenation demand by using the preset power coordination mechanism.
7. The off-grid hydrogen production-based facility hydrogenation method according to claim 6, wherein dynamically compensating for fluctuations in wind power generation power and facility hydrogenation demand using the preset power coordination mechanism comprises: monitoring an off-grid island system; If the monitoring result represents that the battery reserve of the off-grid island system is not in a preset battery reserve interval, adjusting the power of the electrolytic tank of the off-grid island system by utilizing the power deviation compensation mechanism; And if the monitoring result shows that the pressure of the hydrogen storage tank of the off-grid island system is smaller than a preset pressure threshold value when the equipment hydrogenation request is responded, starting a preset boosting operation on the hydrogen storage tank.
8. The utility model provides a device hydrogenation unit based on off-grid hydrogen production which characterized in that is applied to the central coordination controller of off-grid island system, integrated with wind power generation subsystem, electrochemical energy storage subsystem, electrolysis hydrogen production subsystem, hydrogen storage and hydrogenation service subsystem in the off-grid island system, wherein, the device includes: The strategy acquisition module is used for acquiring the equipment operation parameters and the prediction information of the preset time period, constructing a target hydrogen production control model, and inputting the equipment operation parameters and the prediction information of the preset time period into the target hydrogen production control model to obtain a target scheduling strategy; The first instruction generation module is used for generating a target hydrogen production instruction according to the current target scheduling strategy so as to enable preset hydrogen production equipment of the off-grid island system to produce hydrogen based on the target hydrogen production instruction, and providing the produced hydrogen for target equipment when equipment hydrogenation requests of the target equipment are acquired; The strategy correction module is used for acquiring new prediction information based on a preset correction period, and correcting the target scheduling strategy after the end time node of the preset correction period in the preset period according to the new prediction information to obtain a new target scheduling strategy; And the second instruction generating module is used for re-jumping to the step of generating the target hydrogen production instruction according to the current target scheduling strategy until the preset ending condition is met.
9. An electronic device, comprising: A memory for storing a computer program; A processor for executing the computer program to implement the off-grid hydrogen production-based plant hydrogenation process as claimed in any one of claims 1 to 7.
10. A computer readable storage medium for storing a computer program, wherein the computer program when executed by a processor implements the off-grid hydrogen production-based plant hydrogenation method as claimed in any one of claims 1 to 7.

Description

Off-grid hydrogen production-based equipment hydrogenation method, device, equipment and storage medium Technical Field The invention relates to the field of wind power hydrogen production, in particular to a hydrogenation method, a hydrogenation device, a hydrogenation equipment and a storage medium for off-grid hydrogen production. Background At present, the existing wind power hydrogen production project has the common problems of poor system stability, excessive dependence on a power grid, long transportation distance, low hydrogen on-site utilization rate and the like. In the traditional hydrogen absorption scheme, hydrogen production equipment is separated from a hydrogen scene, and hydrogen transportation and storage facilities are additionally built, so that the use cost and the safety risk of hydrogen are greatly increased. Meanwhile, the grid-connected wind power hydrogen production brings huge regulation and control pressure to the power grid. In summary, how to improve the renewable energy utilization rate and the autonomous hydrogen supply capability of the hydrogen adding station is a problem to be solved. Disclosure of Invention In view of the above, the invention aims to provide a hydrogenation method, a hydrogenation device, a hydrogenation equipment and a storage medium for off-grid hydrogen production equipment, which can improve the renewable energy utilization rate and the autonomous hydrogen supply capacity of a hydrogenation station. The specific scheme is as follows: In a first aspect, the application provides an off-grid hydrogen production equipment hydrogenation method, which is applied to a central coordination controller of an off-grid island system, wherein a wind power generation subsystem, an electrochemical energy storage subsystem, an electrolytic hydrogen production subsystem and a hydrogen storage and hydrogenation service subsystem are integrated in the off-grid island system, and the method comprises the following steps: acquiring the predicted information of the equipment operation parameters and the preset time period, constructing a target hydrogen production control model, and inputting the predicted information of the equipment operation parameters and the preset time period into the target hydrogen production control model to obtain a target scheduling strategy; generating a target hydrogen production instruction according to the current target scheduling strategy so as to enable preset hydrogen production equipment of the off-grid island system to produce hydrogen based on the target hydrogen production instruction, and providing the produced hydrogen for target equipment when equipment hydrogenation request of the target equipment is acquired; Acquiring new prediction information based on a preset correction period, and correcting the target scheduling strategy after the end time node of the preset correction period in the preset period according to the new prediction information to obtain a new target scheduling strategy; And re-jumping to the step of generating the target hydrogen production instruction according to the current target scheduling strategy until the preset ending condition is met. Optionally, the prediction information comprises predicted wind power of a preset time period provided based on numerical weather forecast and a hydrogenation demand prediction curve generated based on hydrogenation station historical data and/or reservation orders, and the equipment operation parameters comprise an electrolytic tank rated power curve, an electrolytic tank rated efficiency curve, a battery charge and discharge efficiency safety interval, a battery state of charge safety interval and a hydrogen storage tank safety pressure range; Correspondingly, the step of inputting the equipment operation parameters and the prediction information of the preset period into the target hydrogen production control model to obtain a target scheduling strategy comprises the following steps: The hydrogen production and hydrogenation cost of the off-grid island system is obtained, wherein the hydrogen production and hydrogenation cost comprises the cost of a waste fan, the cycle depreciation cost of a battery and the equivalent cost of single start-stop of an electrolytic cell; Determining preset constraint conditions according to power balance, hydrogen energy dynamic balance, battery charge state change and equipment operation physical constraint in the operation of the off-grid island system; acquiring the current hydrogen storage amount of a hydrogen storage tank of the off-grid island system and the initial charge state of the electrochemical energy storage subsystem; Determining a preset hydrogen production control target, wherein the preset hydrogen production control target is used for minimizing the air discarding quantity, maximizing the service life of a battery and minimizing the start and stop of an electrolytic cell; constructing a target hydrogen production co