CN117904674B - Multilayer control system and method for hydrogen production by PEM (PEM) electrolysis of water - Google Patents
Multilayer control system and method for hydrogen production by PEM (PEM) electrolysis of water Download PDFInfo
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- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 88
- 239000001257 hydrogen Substances 0.000 title claims abstract description 88
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 87
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 83
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000005868 electrolysis reaction Methods 0.000 title abstract description 18
- 238000011217 control strategy Methods 0.000 claims abstract description 75
- 230000001276 controlling effect Effects 0.000 claims abstract description 24
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims description 24
- 230000033228 biological regulation Effects 0.000 claims description 19
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- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000012163 sequencing technique Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
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- 238000004364 calculation method Methods 0.000 description 3
- 230000003111 delayed effect Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
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- 238000011105 stabilization Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005262 decarbonization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010801 machine learning Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
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- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
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Classifications
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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
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
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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
- 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
-
- 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
- C25B9/70—Assemblies comprising two or more cells
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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 Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Automation & Control Theory (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The embodiment of the invention discloses a PEM water electrolysis hydrogen production multilayer control system and a PEM water electrolysis hydrogen production multilayer control method. Wherein, the system includes: the sensing execution module is used for collecting operation data of each device and comprises various sensors, corresponding regulating valves and an electric energy management control unit; each single-tank control unit is used for adjusting and controlling the single electrolytic tank according to the operation data; each module control module is used for adjusting and controlling at least one electrolytic tank and/or shared auxiliary equipment in a single module according to the operation data; each system control module is used for adjusting and controlling a single hydrogen production system according to the operation data; and the remote control module is used for updating the control strategy of at least one of each single-slot control unit, each module control module and each system control module according to the operation data. The embodiment can realize diversified control of a single slot level and update a control strategy according to the equipment condition.
Description
Technical Field
The embodiment of the invention relates to the field of industrial system control, in particular to a PEM water electrolysis hydrogen production multilayer control system and a PEM water electrolysis hydrogen production multilayer control method.
Background
With the rapid development of new energy power generation such as photovoltaic power generation and wind power generation, the technology of producing hydrogen by water electrolysis is increasingly focused, and is considered as an effective way for long-period and large-scale energy storage. The application of hydrogen in the fields of industry, construction, traffic and the like has wide market and the assistance of carbon reduction and decarbonization, and accelerates the popularization and application of the water electrolysis hydrogen production technology. In order to better integrate with upstream power generation equipment such as photovoltaic, wind energy and the like, and application fields such as downstream chemical industry, metallurgy and the like, the aspects of improving the hydrogen production amount of a single tank, using multiple tanks or systems in series-parallel connection (namely, enlarging a hydrogen production factory), prolonging the service life and the like are development trends of the water electrolysis hydrogen production technology.
The PEM (proton exchange membrane, proton Exchange Membrane Fuel) electrolyzes water to produce hydrogen, has the characteristics of high flow density, low hydrogen production energy consumption, strong fluctuation adaptability, high response speed, no corrosive medium and the like, and is rapidly developed in recent years. However, the defects of high equipment investment, short service life and the like limit the development and application of the PEM water electrolysis hydrogen production technology. The service life is prolonged, which is equivalent to reducing equipment investment, and becomes one of the development hot spots of PEM hydrogen production technology. This is achieved both by developing new catalytic materials, improving plant architecture, etc., and by optimizing control strategies.
Generally, the control strategy and the control program are set when the PEM water electrolysis hydrogen production equipment leaves the factory, and the equipment cannot be optimally upgraded according to actual conditions after actual application, so that the equipment is controlled and is disjointed from the actual conditions of the application site, the equipment is difficult to operate under the optimal conditions, and the service life of the equipment is difficult to improve. The control method of the hydrogen production system in the prior art, such as patent CN116256978A, CN116516378B, cannot solve the above technical problems.
Disclosure of Invention
The embodiment of the invention provides a PEM water electrolysis hydrogen production multilayer control system and a PEM water electrolysis hydrogen production multilayer control method, which aim to solve the technical problems.
In a first aspect, embodiments of the present invention provide a PEM electrolyzed water hydrogen production multilayer control system for controlling at least one hydrogen production system, wherein each hydrogen production system comprises at least one electrolyzer module, each electrolyzer module comprising a plurality of electrolyzers; the multi-layer control system includes: the system comprises a perception execution module, a plurality of single-slot control units, at least one module control module, at least one system control module and a remote control module, wherein,
The sensing execution module is used for collecting operation data of each device and comprises various sensors, corresponding regulating valves and an electric energy management control unit;
Each single-tank control unit is used for adjusting and controlling the single electrolytic tank according to the operation data;
Each module control module is used for adjusting and controlling at least one electrolytic tank and/or shared auxiliary equipment in a single module according to the operation data;
each system control module is used for adjusting and controlling a single hydrogen production system according to the operation data;
The remote control module is used for updating the control strategy of at least one of each single-slot control unit, each module control module and each system control module according to the operation data;
When each electrolytic tank needs to be adjusted, if the adjustment capability of each single-tank control unit is within, each single-tank control unit adjusts and controls each electrolytic tank; if the regulation capacity of each single-tank control unit is exceeded or the regulation of each single-tank control unit does not reach the expectation, regulating and controlling by a module control module to which each electrolytic tank belongs; and if the adjustment of each module control module does not reach the expectation, the system control module to which each module control module belongs carries out adjustment control.
In a second aspect, embodiments of the present invention provide a PEM electrolyzed water hydrogen production multilayer control method for controlling at least one hydrogen production system, wherein each hydrogen production system comprises at least one electrolyzer module, each electrolyzer module comprising a plurality of electrolyzers;
The method comprises the following steps:
the sensing execution module collects operation data of each device and comprises various sensors, corresponding regulating valves and an electric energy management control unit;
each single-tank control unit regulates and controls the single electrolytic tank according to the operation data;
Each module control module adjusts and controls at least one electrolytic tank and/or shared auxiliary equipment in a single module according to the operation data;
each system control module adjusts and controls a single hydrogen production system according to the operation data;
The remote control module updates a control strategy of at least one of each single-slot control unit, each module control module and each system control module according to the operation data;
When each electrolytic tank needs to be adjusted, if the adjustment capability of each single-tank control unit is within, each single-tank control unit adjusts and controls each electrolytic tank; if the regulation capacity of each single-tank control unit is exceeded or the regulation of each single-tank control unit does not reach the expectation, regulating and controlling by a module control module to which each electrolytic tank belongs; and if the adjustment of each module control module does not reach the expectation, the system control module to which each module control module belongs carries out adjustment control.
The embodiment of the invention provides a PEM (PEM) electrolytic water hydrogen production system based on remote intelligent interconnection, which is characterized in that an independent single-tank control unit is arranged for each electrolytic tank, so that the running state of the tank can be independently controlled within a certain range, and the service life of the electrolytic tank is prolonged; meanwhile, the residual service life of each electrolytic tank in the module is kept balanced by single-tank adjustment, the service life attenuation of the whole module is delayed, and if necessary, the module control module is restarted to regulate and control a plurality of electrolytic tanks, so that the great influence of the module adjustment on other electrolytic tanks is avoided as much as possible; the adjustment of the system level is similar, and the diversified precise adjustment can be realized through the layer-by-layer control logic. In addition, with the increase of the operation time of the hydrogen production equipment, the embodiment can analyze the variation trend of the performance of the equipment, and continuously optimize and upgrade each level of control strategy through the remote control module when necessary, so that the hydrogen production equipment operates in a relatively preferred state under different application conditions and different time phases, the remote operation and maintenance of the equipment are realized, and the service life of the equipment is prolonged.
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 multi-layer control system and at least one hydrogen production system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of another multi-layer control system and at least one hydrogen production system provided in accordance with an embodiment of the present invention;
FIG. 3 is a flow chart of a multi-layer control provided by an embodiment of the present invention;
FIG. 4 is a flow chart of a remote upgrade of a system provided by an embodiment of the present invention;
FIG. 5 is a schematic diagram of correspondence between data of an electrolytic cell in dynamic time planning according to an embodiment of the present invention;
FIG. 6 is a flow chart of a method for controlling a PEM water electrolysis hydrogen production multilayer according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the invention, are within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. 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.
As described in the background art, generally, the control strategy and control program of PEM water electrolysis hydrogen production equipment are set when the equipment leaves the factory, and the equipment cannot be optimally upgraded according to the actual situation after actual application, so that the equipment is controlled and the actual situation of the application site is disjointed, the equipment is difficult to operate under the optimal situation, and the service life of the equipment is difficult to be prolonged. After a period of operation, the PEM tanks, hydrogen production systems, which make up the hydrogen production plant, may vary greatly in performance, and a single control strategy may not be suitable for each device. In view of this, the present embodiments provide a PEM electrolyzed water hydrogen production multilayer control system for controlling at least one hydrogen production system, wherein each hydrogen production system comprises at least one electrolyzer module, each electrolyzer module comprising a plurality of electrolyzers. The control system can perform differential control on each electrolytic tank, each electrolytic tank module and each hydrogen production system according to the operation data, and update the control strategy as necessary, so that each device (comprising each electrolytic tank, each electrolytic tank module and each hydrogen production system) operates in a relatively better working state, the service life is prolonged, and the overall hydrogen production factory performance is optimized.
Example 1
Fig. 1 and fig. 2 are schematic structural diagrams of a multi-layer control system and at least one hydrogen production system according to an embodiment of the present invention, and in combination with fig. 1 and fig. 2, the multi-layer control system includes: the system comprises a perception execution module (not shown in the figure), a plurality of single-slot control units, at least one module control module, at least one system control module, a data transmission module and a remote control module.
The sensing execution module is used for collecting operation data of various devices (including an electrolytic tank, an electrolytic tank module, a hydrogen production system and other devices) and executing a control strategy, and comprises various sensors such as a temperature sensor, a pressure sensor, a flowmeter, a hydrogen detector, a liquid level meter, a conductivity sensor, an electric energy sensor and the like, corresponding regulating valves, and various actuators such as an electric energy management control unit and the like; the power management control unit may be one or more of an AC/DC (ALTERNATING CURRENT/Direct Current) converter, a DC/DC (Direct Current/Direct Current) converter, a power divider, a Current controller, and the like. In practical application, each device in the sensing execution module may be disposed at the level of the electrolytic cell, or may be disposed at the level of the module, the level of the system, or may share one sensing execution for three levels, which is not limited in this embodiment.
Each electrolytic hydrogen production module comprises a plurality of electrolytic tanks and common auxiliary equipment, and comprises a water tank, a water pump, a heat exchanger, a hydrogen purification device and the like. Each electrolytic cell corresponds to a single cell control unit, and the single cell control unit is used for analyzing data of the sensing execution module and adjusting and controlling parameters such as current and water quantity aiming at the single electrolytic cell.
Each electrolytic cell module corresponds to a module control module respectively, and the module control module is used for analyzing the data of the sensing execution module and adjusting and controlling at least one electrolytic cell and/or shared auxiliary equipment in a single module.
Each hydrogen production system corresponds to a system control module, and the system control module is used for storing data and performing system-level regulation control and comprises a database and a system control unit. Wherein, the database stores attribute data and operation data of each electrolytic tank, each electrolytic tank module and system, and the system control unit is used for adjusting and controlling a single hydrogen production system.
The data transmission module is used for transmitting the data stored by the system control module to the remote control module, and the transmission mode can be cloud service, ethernet and the like. The remote control module is used for providing a control strategy of at least one of each electrolytic cell, each electrolytic cell module and each hydrogen production system according to the operation data, and updating the control strategy to each corresponding single-cell control unit, module control module and system control module.
Based on the functional modules, the multi-stage system can realize personalized accurate control of a single-slot layer according to the operation data of the single slot, and the control flow is shown in figure 3. Firstly, the sensing module collects data and sends the data to each single-tank control unit, and each single-tank control unit judges whether the running state of the corresponding electrolytic tank needs to be adjusted according to a control strategy, if so, whether the running state of the corresponding electrolytic tank exceeds the self adjusting capacity or not. If the adjustment capacity of each single-tank control unit is not exceeded, each single-tank control unit performs adjustment control on each electrolytic tank. If the regulation capacity of each single-tank control unit is exceeded or the regulation of each single-tank control unit does not reach the expectation, each single-tank control unit sends data to a module control module to which each electrolytic tank belongs, and each module control module carries out calculation and analysis according to a control strategy and sends a control signal to a perception execution module and shared auxiliary equipment to carry out regulation control of a module level. And if the adjustment of each module control module does not reach the expectation, the system control module to which each module control module belongs performs calculation and analysis according to a control strategy, sends a control signal to the perception execution module, and performs adjustment control of a system level.
More specifically, the purpose of the control adjustment in this embodiment is to prolong the service lives of most of the electrolytic cells, and make the remaining lives of the electrolytic cells in the same module approach to be consistent (reduce the difference as much as possible), and reduce the number of the discarded electrolytic cells in the electrolytic cell module, so as to prolong the service lives of the electrolytic cells and even the hydrogen production systems. With such an object in mind, in one embodiment, the multi-layer control flow of the control system may include the following processes:
The single-tank control unit of any electrolytic tank predicts the residual life of the electrolytic tank according to the operation data of the electrolytic tank, and if the residual life is smaller than the currently expected residual life, the water flow of the electrolytic tank is reduced through a water flow regulating valve, and/or the current of the electrolytic tank is reduced through an electric energy management control unit. After the water flow and/or the current are reduced, the working strength of the electrolytic cell is reduced, and the decay rate of the residual life can be delayed. The method for predicting the remaining life of the electrolytic cell may be any prior art, or may be set individually by a user according to the performance requirement of the electrolytic cell, and the embodiment is not particularly limited.
In addition, under the condition that the total water flow in the module is unchanged, when the water flow of one electrolytic tank is reduced, the water flow of the other electrolytic tanks is increased by a certain extent, so that the water flow which can be reduced by the single-tank control unit is controlled in a certain range, and the excessive influence on other electrolytic tanks is avoided; the current control is similar, the current which can be reduced by the single-slot unit is controlled in a certain range, and both control ranges can be preset and belong to a part of the single-slot control strategy. Alternatively, it may be determined whether the current control exceeds the adjustment range of the single slot based on the integrated influence of the single slot control on other slots. For example, if the average magnitude of the influence on the water flow or current of the remaining tanks after the single tank adjustment is less than a threshold value (e.g., 5%), then the reduced water flow or current amount at that time is considered to be within the certain range (i.e., not outside the regulation range of the single tank). Compared with the maximum threshold value which is used for simply restraining the reduction of the water flow or the current of the single groove, the method can avoid frequent adjustment caused by the fluctuation of the parameters of the single groove, reduce the frequency of module control, and reduce the loss of the service life of equipment caused by frequent parameter change. After a certain time of single-tank adjustment, if the residual lives of a plurality of electrolytic tanks in the electrolytic tank module where the electrolytic tank is located are successively found to be smaller than the current expected residual lives, or the residual lives of the electrolytic tanks are still smaller than the expected residual lives under the minimum water flow and the minimum current which can be regulated and controlled by the single-tank control unit, the module control module corresponding to the electrolytic tank module regulates and controls the total water flow and/or the total current and/or the water conductivity of the module, and/or controls the water flow distribution and/or the current distribution among the electrolytic tanks so as to prolong the residual lives of the electrolytic tanks in the module and lead the lives of the electrolytic tanks to be consistent. Optionally, under default condition, total water flow and current in the same module are distributed evenly among the electrolytic cells, the module control module can adjust current and/or water flow distribution of each electrolytic cell in the module through shared auxiliary equipment, distribute larger current and/or water flow for the electrolytic cell with longer residual life, distribute smaller current and/or water flow for the electrolytic cell with shorter residual life, so as to reduce the service life difference degree of each electrolytic cell, reduce the number of electrolytic cells scrapped simultaneously in the module, and further prolong the whole service life of the module on the premise of unchanged total hydrogen production amount of the module.
If the residual life of a plurality of electrolytic cells in the electrolytic cell module is still smaller than the expected residual life through the adjustment of the module control module, the system control module of the electrolytic cell module controls water flow distribution and/or current distribution among the electrolytic cell modules, and more current and/or water flow is distributed for the electrolytic cell module with better performance, and less current and/or water flow is distributed for the electrolytic cell module with weak performance. If a plurality of electrolytic cells in the electrolytic cell module are scrapped (for example, half of the electrolytic cells are scrapped), the system control module of the electrolytic cell module stops supplying water and power to the electrolytic cell module.
Furthermore, various data processing methods such as big data, machine learning, artificial intelligence and the like can be deployed in the remote control module, and the remote control module can utilize the methods to analyze and process the operation data of each stage of hydrogen production equipment, provide a control strategy suitable for the current operation state, and issue the control strategy to each stage of hydrogen production equipment in a remote updating mode, so that each stage of hydrogen production equipment operates in a relatively better working state, and the overall service life of the hydrogen production system is prolonged. For example, the single slot control strategy may include at least one of: a strategy for adjusting water flow and/or current according to the residual service life of the single groove, such as a step function taking the residual service life as an abscissa and the water flow and/or current as an ordinate; the module control strategy may include at least one of: the water flow distribution mode and the current distribution mode of each single groove in the module comprise distribution proportion, rotation mode and the like; the system control strategy may include at least one of: the total water flow and total current of the system, the water flow distribution mode and current distribution mode of each module in the system and the like, including distribution proportion, rotation mode and the like. Of course, other parameters, thresholds, modes, etc. may be included in the control strategies of each stage, and the embodiment is not particularly limited.
When a certain part of the hydrogen production system needs to remotely update the control strategy, the control strategy can be manually selected by a system operator, and the data stored in the selected time is sent to the remote control module through the system control module; the remote control module calculates and analyzes the control strategy by using methods such as big data and the like, and feeds the control strategy back to the system control module through the data transmission module to complete remote upgrading of the control strategy. In a specific embodiment, as shown in fig. 4, the system control module sends the operation data of any one of the electrolytic tanks to the remote control module, and the remote control module predicts the change trend of the electrolytic tank according to the operation data and matches a new control strategy according to the change trend. Then, a remote control module adds a system label, a single-slot label and a module label for the new control strategy, encapsulates the new control strategy into a control program upgrading packet and sends the control program upgrading packet to a hydrogen production system to which the electrolytic cell belongs, wherein the system label is used for identifying whether the program upgrading packet is a system upgrading packet, 1 represents a system upgrading packet, and 0 represents a non-system upgrading packet; the single-slot label is used for identifying whether the program upgrade package is a single-slot upgrade package and which electrolytic cell upgrade package, 0 represents a non-single-slot upgrade package, and a non-0 value represents the number of any electrolytic cell in the module; the module label is used for identifying whether the program upgrading packet is a module upgrading packet and which module upgrading packet, 0 represents a non-module upgrading packet, and a non-0 value represents the number of the module where any electrolytic cell is located in the hydrogen production system. After receiving the control program upgrading packet, the system control module judges whether the control program upgrading packet is the system control program upgrading packet according to the system label; if yes, the system control module installs an upgrade package to finish the upgrade; if not, the upgrade package is sent to the corresponding module control module according to the module label. The module control module judges whether the module control program upgrade package is a module control program upgrade package according to the module label; if yes, the module control module installs an upgrade package to finish the upgrade; if not, the upgrade package is sent to the single-slot control module according to the single-slot label, and the single-slot control module receives the installation upgrade package to finish the upgrade.
In addition, the remote control module may update the control strategy according to the device condition when the multi-level control shown in fig. 3 does not achieve the expected effect, and supplement the multi-level control. In a specific embodiment, after any hydrogen production system runs stably, the residual service lives of each electrolytic tank module and each electrolytic tank in the hydrogen production system before adjustment, and the control strategies of each level of control units and control modules in the hydrogen production system after adjustment are stored in a strategy library of the remote control module in a complete set. For example, when any hydrogen production system needs to perform at least one of single-tank control, module control and system control, the residual service life and other operation data of each electrolytic tank module and each electrolytic tank in the hydrogen production system at the moment can be stored in a strategy library of the remote control module; after the hydrogen production system is controlled to run stably through at least one of single-tank control, module control and system control, the control strategies of all levels of control units and control modules in the hydrogen production system in a stable state are stored in a strategy library of the remote control module in a complete set; and the remaining life before adjustment, other operation data combinations and the control strategy combination after stabilization jointly form a set of data-strategy combination. Or when any one of the electrolytic tank modules needs to perform single-tank control and/or module control, the module control module in the module and the residual service life and other operation data of the electrolytic tank control unit are stored in a strategy library of the remote control module in a sleeved mode; after the electrolytic tank module runs stably under the control of the single tank and/or the control of the modules, the control strategies of the module control modules and the electrolytic tank control units in the electrolytic tank module are stored in a strategy library of the remote control module in a complete set; and the remaining life before adjustment, other operation data combinations and the control strategy combination after stabilization jointly form a set of data-strategy combination. The determination condition of the running stability can be preset by a system operator, for example, the residual life difference of each part inside the hydrogen production system or the electrolytic tank module is kept within a set range, and/or the condition that the running exceeds the set time and the system level or the module level is difficult to regulate is not generated. Thus, with the increase of the number of users, a great number of excellent control strategies are stored in the strategy library, based on the strategy library, if the expected effect is not achieved after the regulation of a certain electrolytic tank through the electrolytic tank control unit, the module control module and the system control module, the system control module can send the residual service lives and other operation data of all electrolytic tanks in the electrolytic tank and the modules where the electrolytic tank is positioned to the remote control module, and the remote control module matches a module or a hydrogen production system similar to the single tank condition and the module condition of the electrolytic tank from the strategy library, and the equipment control is carried out again by referring to the whole set of control strategies of the module or the hydrogen production system in a stable state. Specifically, the process may include the steps of:
Step one, the remote control module may match a plurality of cells from the policy repository that are similar to the remaining life of the cell. For ease of distinction and description, the present embodiment refers to the cell that needs to be adapted as a first cell, and the plurality of cells in the policy bank that are matched here as second cells. Alternatively, a plurality of electrolytic cells having a lifetime difference within a set range from the first electrolytic cell may be searched in the policy bank as a plurality of second electrolytic cells.
And step two, selecting an optimal second electrolytic tank by the remote control module according to the distribution condition of the residual service lives of the electrolytic tanks in the module where the second electrolytic tanks are located, and updating the control strategy of the optimal second electrolytic tank after stabilizing to the single-tank control module corresponding to the first electrolytic tank. It should be distinguished that the time points of the remaining lives and the control strategy in the first step and the second step are different, wherein the remaining lives are the remaining lives before the adjustment of the first electrolytic tank and the second electrolytic tank, and represent the conditions of the electrolytic equipment before the adjustment; the control strategy is the control strategy after the second electrolytic tank is stabilized, namely the control strategy which can lead the system to run stably is referred. The remaining life and the point in time of the control strategy mentioned hereinafter are the same as here and will not be described in detail.
Optionally, firstly, sorting the first electrolytic cells and the second electrolytic cells in the modules according to the residual life, for convenience of distinguishing and description, the modules in which the first electrolytic cells are located may be called first modules, the modules in which the second electrolytic cells are located are called second modules, and each second electrolytic cell corresponds to one second module, and after all the electrolytic cells in the first modules are sorted according to the order of the residual life from large to small, the sequence a= { a 1,a2,a3…,an1 } is obtained, where n1 is the number of electrolytic cells in the first module, and a 1,a2,a3…,an1 is the residual life of n1 electrolytic cells; after all the electrolytic cells in any second module are sequenced according to the sequence from the large residual life to the small residual life, the sequence B= { B 1,b2,b3…,bn2 }, wherein n2 is the number of the electrolytic cells in the second module, and B 1,b2,b3…,bn2 is the residual life of n2 electrolytic cells respectively.
And then, calculating the similarity between the sequence A where the first electrolytic cell is positioned and the sequence B where each second electrolytic cell is positioned, and selecting the second electrolytic cell with the highest similarity as the optimal second electrolytic cell. The numerical distribution of each sequence reflects the difference condition of the residual life of each electrolytic tank in the electrolytic tank module, the similarity of A, B sequences reflects the difference condition of the residual life of each electrolytic tank in the first module, and the similarity of the sequence with the difference condition of the residual life of each electrolytic tank in the second module is higher, so that the more similar the distribution rule of the service life of each electrolytic tank in the two modules is, the more stable each-level control strategy in the second module has reference value to the first module. Specifically, for any one of the second electrolytic tanks, according to the positions of the first electrolytic tank and the second electrolytic tank in the respective sequences, the process of calculating the sequence similarity may include the following two alternative embodiments:
In a first alternative embodiment, when the lengths of the sequences in which the first electrolytic cell and the second electrolytic cell are located are the same, and the positions of the first electrolytic cell and the second electrolytic cell in the respective sequences are the same, the number of electrolytic cells in the two modules is the same, and the positions of the remaining lives of the first electrolytic cell and the second electrolytic cell in the two modules are similar, the difference value of the remaining lives of the electrolytic cells in the two sequences in the same positions can be calculated directly by using the mean square error, and the average value of squares of the differences is used as the similarity of the two sequences. Taking the sequences a= { a 1,a2,a3…,an1 } and b= { B 1,b2,b3…,bn2 } as examples, the calculation formula of the similarity is as follows:
In a second alternative embodiment, when the sequence lengths of the first electrolytic cell and the second electrolytic cell are different, or the positions of the first electrolytic cell and the second electrolytic cell in the respective sequences are different, the number of electrolytic cells in the two modules is different, or the positions of the residual lives of the first electrolytic cell and the second electrolytic cell in the two modules are different, at this time, the difference of the performance distribution conditions of the electrolytic cells in the two modules is larger, the sequence similarity is not easy to be calculated by directly using the mean square error, and the similarity of the two sequences can be calculated by adopting a dynamic time planning method. The dynamic time planning method can calculate the difference of the overall forms of the sequences when the lengths of the sequences are different, and the method is applied to the electrolytic cell sequences in the embodiment, so that the overall distribution condition of the service lives of the electrolytic cells in the modules is concerned, and when the overall distribution is similar, the electrolytic cell control strategy after being stabilized in the second module still has reference value to the first module. However, the points of the two sequences (corresponding to the two curves) in the dynamic time planning method are not in one-to-one correspondence according to the arrangement order, in the finally obtained sequence distance, the first electrolytic cell may correspond to a plurality of similar electrolytic cells in the second module, and for example, assuming that the two solid lines in fig. 5 respectively represent the two sequences and the dotted lines represent the correspondence between the points, there may be a one-to-many or many-to-one relationship between the electrolytic cells of the two modules, where fig. 5 is only for illustrating the correspondence and does not represent the constraint on the actual distribution situation of the performance of the electrolytic cells. Therefore, in the implementation process of the dynamic time planning method, at least one similar electrolytic tank corresponding to the first electrolytic tank in the second module is recorded, if the similar electrolytic tanks include the second electrolytic tank, the operation states of the first electrolytic tank and the second electrolytic tank at the moment are similar, the position of the first electrolytic tank in the first module and the position of the second electrolytic tank in the second module can be analogized, and the two conditions are met simultaneously, so that the control strategy after the second electrolytic tank is stable has a reference value for the first electrolytic tank, and the similarity can be kept to participate in the subsequent optimal operation. If the second electrolytic tank is not included in the similar electrolytic tanks, the two conditions cannot be met at the same time, and the reference value of the second electrolytic tank to the first electrolytic tank is to be questioned by the control strategy after the second electrolytic tank is stable, the similarity is set to be 0, and the second electrolytic tank is firstly eliminated in the subsequent preferred operation.
Step three, after the control strategy of the first electrolytic tank is updated, the single-tank control module adjusts and controls the first electrolytic tank according to the new control strategy; if the expected effect is not achieved after adjustment, sequentially updating the single-tank control strategy of the rest of the electrolytic tanks in the second module to the single-tank control modules of the rest of the electrolytic tanks in the first module according to the sequence from the longer residual life to the shorter residual life; when the number of the electrolytic cells for updating the control strategy reaches the set number, stopping continuously updating the single-cell control strategy, and directly updating the control strategy of the first module. Taking the remaining life sequences a= { a 1,a2,a3…,an1 } and b= { B 1,b2,b3…,bn2 } of the electrolytic cells as an example, assuming that a n1 corresponds to the first electrolytic cell, B n2 corresponds to the second electrolytic cell, after updating the stationary single-cell control strategy corresponding to B n2 to the single-cell control unit corresponding to a n1, if the expected effect is not yet reached, updating the stationary single-cell control strategy corresponding to B 1 to the electrolytic cell corresponding to a 1 in sequence from the large remaining life to the small remaining life, updating the stationary single-cell control strategy corresponding to B 2 to the electrolytic cell corresponding to a 2, …, and so on until the number of electrolytic cells for updating the strategy reaches a set threshold, for example, 3 electrolytic cells, continuing to update the single-cell control strategy is abandoned, and the stationary module control strategy of the second module is directly updated to the module control module of the first module. In order to keep the remaining life of each electrolytic cell in the module similar, the water flow or current of the electrolytic cell with shorter remaining life in the module is generally distributed to the electrolytic cell with longer remaining life so as to balance the remaining life of each cell, so that the embodiment preferentially selects the electrolytic cell with longer remaining life to perform the coordination regulation and control of the single cell layer surface together with the first electrolytic cell, and if the expected effect cannot still be achieved, the overall regulation and control of the module layer surface is performed, and the layer-by-layer strategy update is realized.
In summary, the embodiment provides a PEM electrolyzed water hydrogen production system based on remote intelligent interconnection, which is provided with independent single-tank control units for each electrolytic tank, so that the operation state of the tank can be independently controlled within a certain range, and the service life of the electrolytic tank is prolonged; meanwhile, the residual service life of each electrolytic tank in the module is kept balanced by single-tank adjustment, the service life attenuation of the whole module is delayed, and if necessary, the module control module is restarted to regulate and control a plurality of electrolytic tanks, so that the great influence of the module adjustment on other electrolytic tanks is avoided as much as possible; the adjustment of the system level is similar, and the diversified precise adjustment can be realized through the layer-by-layer control logic. In addition, with the increase of the operation time of the hydrogen production equipment, the embodiment can analyze the variation trend of the performance of the equipment, and continuously optimize and upgrade each level of control strategy through the remote control module when necessary, so that the hydrogen production equipment operates in a relatively preferred state under different application conditions and different time phases, the remote operation and maintenance of the equipment are realized, and the service life of the equipment is prolonged. Particularly, when the multi-stage control does not reach the expected effect, the remote control module can also match a control strategy with reference value from the strategy library according to the principle that the single-slot states are similar and the overall states of the modules are similar, and the control strategy is used as the supplement of the multi-stage control, so that the self-regulation capacity of the hydrogen production system is further improved.
Example 2
Based on the control systems of fig. 1 and 2, the device parameters can also be adjusted by:
In the first mode, at least one of water flow, conductivity and current of the electrolytic cell is adjusted according to the remaining life of the electrolytic cell.
In particular, if the remaining lifetime is reduced by x% compared to the currently expected lifetime, the device parameters may be adjusted by at least one of the following:
1) The water flow is reduced by y% through the adjustment of the opening of the valve of the electrolytic tank;
2) Reducing the water conductivity of the electrolytic tank by y% through adjustment of the valve opening and the pump rotation speed of the shared auxiliary equipment;
3) The current of the electrolytic cell is reduced by y% by an electric energy management control unit.
Wherein y=x when 5<x is less than or equal to 10; when x is 10< x is less than or equal to 20, y=kx, and k is 1.0 < k is less than or equal to 1.2; when 20< x is less than or equal to 30, y=kx, 1.2 < k is less than or equal to 1.5.
And in a second mode, at least one of water flow, conductivity and current of the electrolytic tank is regulated according to the measured voltage of electrolysis.
In particular, if the measured voltage of the electrolyzer is raised by x% compared to the initial value, the plant parameters can be adjusted by at least one of the following means:
1) The water flow is reduced by y% through the adjustment of the opening of the valve of the electrolytic tank;
2) Reducing the water conductivity of the electrolytic tank by y% through adjustment of the valve opening and the pump rotation speed of the shared auxiliary equipment;
3) Reducing the current of the electrolytic cell by y% by an electric energy management control unit;
Wherein y=x when 1 < x.ltoreq.5; when x is more than 5 and less than or equal to 10, y=kx, and k is more than 1.0 and less than or equal to 1.1; when x is more than 10 and less than or equal to 15, y=kx, and k is more than 1.1 and less than or equal to 1.4.
FIG. 6 is a flow chart of a method for controlling a plurality of layers of PEM water electrolysis hydrogen production, which is provided by the embodiment of the invention, and is implemented by the cooperation of the parts in the multi-layer control system. As shown in fig. 6, the method specifically includes:
s110, the sensing execution module collects operation data of each electrolysis device, and comprises various sensors, corresponding regulating valves and an electric energy management control unit;
s120, each single-tank control unit adjusts and controls the single electrolytic tank according to the operation data;
S130, each module control module adjusts and controls at least one electrolytic tank and/or shared auxiliary equipment in a single module according to the operation data;
S140, each system control module adjusts and controls the single hydrogen production system according to the operation data;
S150, the remote control module updates a control strategy of at least one of each single-slot control unit, each module control module and each system control module according to the operation data;
When each electrolytic tank needs to be adjusted, if the adjustment capability of each single-tank control unit is within, each single-tank control unit adjusts and controls each electrolytic tank; if the regulation capacity of each single-tank control unit is exceeded or the regulation of each single-tank control unit does not reach the expectation, regulating and controlling by a module control module to which each electrolytic tank belongs; and if the adjustment of each module control module does not reach the expectation, the system control module to which each module control module belongs carries out adjustment control.
It should be noted that, the embodiment and the system embodiments are based on the same inventive concept, and the specific limitations in any of the system embodiments are applicable to the method embodiment, and can achieve the same beneficial effects as those of the system embodiments, which are not described herein.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention.
Claims (10)
1. A PEM electrolyzed water hydrogen production multilayer control system for controlling at least one hydrogen production system, wherein each hydrogen production system comprises at least one electrolyzer module, each electrolyzer module comprising a plurality of electrolyzers; the multi-layer control system includes: the system comprises a perception execution module, a plurality of single-slot control units, at least one module control module, at least one system control module and a remote control module, wherein,
The sensing execution module is used for collecting operation data of each device and comprises various sensors, corresponding regulating valves and an electric energy management control unit;
Each single-tank control unit is used for adjusting and controlling the single electrolytic tank according to the operation data;
Each module control module is used for adjusting and controlling at least one electrolytic tank and/or shared auxiliary equipment in a single module according to the operation data;
each system control module is used for adjusting and controlling a single hydrogen production system according to the operation data;
The remote control module is used for updating the control strategy of at least one of each single-slot control unit, each module control module and each system control module according to the operation data;
When each electrolytic tank needs to be adjusted, if the adjustment capability of each single-tank control unit is within, each single-tank control unit adjusts and controls each electrolytic tank; if the regulation capacity of each single-tank control unit is exceeded or the regulation of each single-tank control unit does not reach the expectation, regulating and controlling by a module control module to which each electrolytic tank belongs; and if the adjustment of each module control module does not reach the expectation, the system control module to which each module control module belongs carries out adjustment control.
2. The multi-layered control system of claim 1, wherein each single cell control unit performs regulation control of a single electrolytic cell by:
The single-tank control unit of any electrolytic tank predicts the residual life of the electrolytic tank according to the operation data of the electrolytic tank, and if the residual life is smaller than the current expected residual life, the water flow of the electrolytic tank is reduced through a water flow regulating valve, and/or the current of the electrolytic tank is reduced through an electric energy management control unit, so that the residual life of the electrolytic tank is prolonged.
3. The multi-layer control system according to claim 2, wherein if the adjustment capability of each single-tank control unit is exceeded or the adjustment of each single-tank control unit is not expected, the module control module to which each electrolytic tank belongs performs adjustment control, comprising:
If the residual life of a plurality of electrolytic cells in the electrolytic cell module where the electrolytic cell is positioned is smaller than the current expected residual life, or the residual life of the electrolytic cell is still smaller than the expected residual life under the minimum water flow and the minimum current which can be regulated and controlled by the single cell control unit, the module control module corresponding to the electrolytic cell module regulates and controls the total current and/or the water flow rate and/or the total water flow rate of the module, and/or regulates and controls the water flow distribution and/or the current distribution among the electrolytic cells so as to prolong the residual life of each electrolytic cell in the module and lead the service lives of the electrolytic cells to be consistent.
4. The multi-layer control system of claim 3, wherein if the adjustment of each module control module is not expected, the adjustment control is performed by the system control module to which each module control module belongs, comprising:
If the residual service lives of a plurality of electrolytic cells in the electrolytic cell module are still smaller than the expected residual service life after being regulated by the module control module, regulating and controlling current distribution and/or water flow distribution among the electrolytic cell modules by a system control module to which the electrolytic cell module belongs;
If a plurality of electrolytic cells are scrapped in the electrolytic cell module, the system control module to which the electrolytic cell module belongs stops supplying water and power to the electrolytic cell module.
5. The multilayer control system according to claim 1, characterized in that if the remaining life of an electrolytic cell is reduced by x% compared to the currently expected life, the water conductivity of the electrolytic cell is reduced by y% by adjustment of the valve opening and the pump speed, and/or the current of the electrolytic cell is reduced by y% by an electrical energy management control unit, and/or the water flow of the electrolytic cell is reduced by y% by adjustment of the valve opening, wherein y = x when 5<x is less than or equal to 10; when x is 10< x is less than or equal to 20, y=kx, and k is 1.0 < k is less than or equal to 1.2; when x is 20< x is less than or equal to 30, y=kx, k is 1.2 < k is less than or equal to 1.5; or (b)
If the measured voltage of the electrolytic cell is increased by x% compared with the initial value, reducing the water conductivity of the electrolytic cell by y% by adjusting the opening of a valve and the rotational speed of a pump, and/or reducing the current of the electrolytic cell by y% by an electric energy management control unit, and/or reducing the water flow of the electrolytic cell by y% by adjusting the opening of a valve, wherein y=x when 1 < x.ltoreq.5; when x is more than 5 and less than or equal to 10, y=kx, and k is more than 1.0 and less than or equal to 1.1; when x is more than 10 and less than or equal to 15, y=kx, and k is more than 1.1 and less than or equal to 1.4.
6. The multi-layer control system of claim 1, wherein after any hydrogen production system is running steadily, each electrolyzer module and the remaining life of each electrolyzer in the hydrogen production system before adjustment, and the control strategy after each level of control units and control modules in the hydrogen production system are stationary are stored in a strategy library of the remote control module in a complete set;
after the system control module to which each module control module belongs performs adjustment control if the adjustment of each module control module does not reach the expectation, the system control module further comprises:
If the system control module does not reach the expected effect after adjustment, the remote control module matches a plurality of second electrolytic cells with the difference of the residual lives of the first electrolytic cells to be adjusted within a set range from the strategy library, selects an optimal second electrolytic cell according to the distribution condition of the residual lives of the electrolytic cells in the module where each second electrolytic cell is positioned, and updates the control strategy of the optimal second electrolytic cell after stabilizing to a single cell control module corresponding to the first electrolytic cell;
the single-tank control module regulates and controls the first electrolytic tank according to a new control strategy; if the expected effect is not achieved, sequentially updating the single-tank control strategy of the rest of the electrolytic tanks in the module where the optimal second electrolytic tank is positioned after stabilizing to the single-tank control modules of the rest of the electrolytic tanks in the module where the first electrolytic tank is positioned according to the sequence from the longer service life to the shorter service life;
And when the number of the electrolytic cells with updated strategies reaches the set number, stopping updating the single-cell control strategy, and updating the control strategy of the module where the first electrolytic cell is positioned instead.
7. The multi-layered control system of claim 6, wherein the selecting an optimal second cell based on a distribution of remaining life of each cell within the module in which each second cell is located, comprises:
Sequencing the electrolytic cells in the modules where the first electrolytic cell and the second electrolytic cell are positioned according to the residual service lives;
According to the positions of the first electrolytic tank and the second electrolytic tanks in the respective sequences, respectively calculating the similarity between the sequence of the first electrolytic tank and the sequence of the second electrolytic tank, wherein the similarity reflects the difference of the residual lives of the electrolytic tanks in the module of the first electrolytic tank and the difference of the residual lives of the electrolytic tanks in the module of the second electrolytic tank;
and selecting the second electrolytic cell with the highest similarity as the optimal second electrolytic cell.
8. The multi-layered control system of claim 7, wherein the calculating the similarity between the sequence of the first electrolytic cell and the sequence of the second electrolytic cells based on the positions of the first electrolytic cell and the second electrolytic cells in the respective sequences, respectively, comprises:
If the lengths of the sequences of the first electrolytic tank and any second electrolytic tank are the same and the positions in the sequences are the same, calculating the similarity of the two sequences according to the residual life difference value of the electrolytic tank at the same position in the two sequences;
Otherwise, calculating the similarity of the two sequences by adopting a dynamic time planning method.
9. The multi-layered control system of claim 1, wherein the remote control module updates the control strategy of at least one of each single slot control unit, each module control module, and each system control module by:
The remote control module predicts the change trend of the electrolytic cell according to the operation data of any electrolytic cell, matches a new control strategy according to the change trend, and adds a system label, a single-cell label and a module label to be commonly transmitted to a hydrogen production system to which the electrolytic cell belongs;
and the hydrogen production system sends the new control strategy to the single-tank control unit of the electrolytic tank according to the system tag, the single-tank tag and the module tag.
10. A PEM electrolyzed water hydrogen production multilayer control method, characterized by being applied to a multilayer control system according to any one of claims 1-9;
The method comprises the following steps:
the sensing execution module collects operation data of each device and comprises various sensors, corresponding regulating valves and an electric energy management control unit;
each single-tank control unit regulates and controls the single electrolytic tank according to the operation data;
Each module control module adjusts and controls at least one electrolytic tank and/or shared auxiliary equipment in a single module according to the operation data;
each system control module adjusts and controls a single hydrogen production system according to the operation data;
The remote control module updates a control strategy of at least one of each single-slot control unit, each module control module and each system control module according to the operation data;
When each electrolytic tank needs to be adjusted, if the adjustment capability of each single-tank control unit is within, each single-tank control unit adjusts and controls each electrolytic tank; if the regulation capacity of each single-tank control unit is exceeded or the regulation of each single-tank control unit does not reach the expectation, regulating and controlling by a module control module to which each electrolytic tank belongs; and if the adjustment of each module control module does not reach the expectation, the system control module to which each module control module belongs carries out adjustment control.
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| CN117248229A (en) * | 2023-09-26 | 2023-12-19 | 中国科学院大连化学物理研究所 | Megawatt PEM hydrogen production system and control method |
| CN117305907A (en) * | 2023-10-18 | 2023-12-29 | 兴迪(江苏)氢能源科技有限公司 | Cell management system based on electrolytic water hydrogen production electrolytic cell |
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| CN101510092A (en) * | 2009-03-27 | 2009-08-19 | 天津大学 | Remote control system for water electrolytic hydrogen production |
| CN116145166A (en) * | 2023-01-20 | 2023-05-23 | 西门子能源有限公司 | Mixed electrolytic water hydrogen production system and control method thereof |
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