CN113644750A - Operation state control method of hydrogen production unit and related device - Google Patents

Operation state control method of hydrogen production unit and related device Download PDF

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Publication number
CN113644750A
CN113644750A CN202111002483.5A CN202111002483A CN113644750A CN 113644750 A CN113644750 A CN 113644750A CN 202111002483 A CN202111002483 A CN 202111002483A CN 113644750 A CN113644750 A CN 113644750A
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hydrogen production
state
target
units
production units
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柏杨
李江松
陈志权
孟祥麟
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Sunshine Hydrogen Energy Technology Co Ltd
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Sungrow Power Supply Co Ltd
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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
    • H02J15/00—Systems for storing electric energy
    • H02J15/008—Systems for storing electric energy using hydrogen as energy vector
    • 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
    • C25B15/023—Measuring, analysing or testing during electrolytic production
    • 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
    • H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
    • 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
    • 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
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • 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
    • 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
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • 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
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The invention provides a method for controlling the running state of a hydrogen production unit and a related device, which can determine the target number and the hydrogen production parameters of the hydrogen production unit in the current period, which correspond to the power generation parameters of a new energy power generation system and the equipment parameters of the hydrogen production unit in the hydrogen production system, and can also determine the state of the current period by considering the state of the hydrogen production unit in the previous period in addition to the target number and the hydrogen production parameters of the hydrogen production unit in the current period, namely considering the external condition and the self condition of the hydrogen production unit, thereby avoiding the problems that the hydrogen production power of the hydrogen production unit changes greatly and the hydrogen production unit starts and stops frequently, the service life of the hydrogen production unit and the hydrogen production efficiency are reduced.

Description

Operation state control method of hydrogen production unit and related device
Technical Field
The invention relates to the field of hydrogen production by new energy, in particular to a method for controlling the running state of a hydrogen production unit and a related device.
Background
The hydrogen production by water electrolysis is an efficient and clean hydrogen production mode, and in the hydrogen production by water electrolysis, a new energy power generation system is required to supply power to the hydrogen production unit in the hydrogen production system so that the hydrogen production unit utilizes electric energy to perform the hydrogen production operation by water electrolysis.
The power generation state of the new energy power generation system can affect the hydrogen production state of the hydrogen production unit. At present, a new energy power generation system is easily influenced by environmental factors such as illumination intensity, wind power intensity, temperature, humidity and the like, so that the new energy power generation system has randomness and instability in power generation, hydrogen production power of a hydrogen production unit is changed greatly, the hydrogen production unit is started and stopped frequently, and the service life and the hydrogen production efficiency of the hydrogen production unit are reduced.
Disclosure of Invention
In view of the above, the invention provides a method and a related device for controlling an operation state of a hydrogen production unit, so as to solve the problems that a new energy power generation system has randomness and instability in power generation, so that the hydrogen production power of the hydrogen production unit changes greatly, the hydrogen production unit is frequently started and stopped, and the service life and the hydrogen production efficiency of the hydrogen production unit are reduced.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method of controlling an operating state of a hydrogen production unit, comprising:
acquiring power generation parameters of a new energy power generation system and equipment parameters of a hydrogen production unit in the hydrogen production system;
determining the target number and hydrogen production parameters of the hydrogen production units which are in the operation state in the hydrogen production system in the current period and correspond to the power generation parameters and the equipment parameters;
acquiring the state of a hydrogen production unit in the hydrogen production system in the previous period;
and adjusting the state of the hydrogen production units in the hydrogen production system in the current period according to the state of the hydrogen production units in the previous period and the target number of the hydrogen production units in the current period, which should be in the running state.
Optionally, adjusting the state of the hydrogen production units in the hydrogen production system in the current cycle according to the state of the hydrogen production units in the previous cycle and the target number of hydrogen production units in the current cycle, which should be in the operating state, includes:
judging whether the target number of the current period is larger than a first historical number of hydrogen production units in the hydrogen production system in the running state in the previous period;
under the condition that the target quantity is larger than the first historical quantity, selecting first target hydrogen production units which are not in the running state in the current period and are in the first difference value in quantity from the hydrogen production system, and adjusting the states of the first target hydrogen production units to be in the fluctuation hydrogen production state; the first difference is an absolute difference between the target quantity and the first historical quantity;
judging whether the first number of the current period is larger than the second historical number of the hydrogen production units in the hydrogen production system in the stable hydrogen production state in the previous period; the first number is the number of hydrogen production units which are in a stable hydrogen production state in the current period;
under the condition that the first number is larger than the second historical number, screening out second target hydrogen production units with the number being a second difference value according to the sequence that the running time of the hydrogen production units in the fluctuating hydrogen production state is from large to small, and adjusting the state of the second target hydrogen production units to be in a stable hydrogen production state; the second difference is an absolute difference between the first number and the second historical number;
and the states of the first target hydrogen production units to be adjusted, the running time of which is greater than a preset running time threshold value, and the second target hydrogen production units to be adjusted, the number of which is the number of the first target hydrogen production units to be adjusted and which are not in the running state, are exchanged.
Optionally, in a case that the first number is not greater than the second history number, the method further includes:
screening out the third target hydrogen production units with the number of the second difference values according to the sequence that the running time in the stable hydrogen production state is from small to large;
adjusting the state of the third target hydrogen production unit to a fluctuating hydrogen production state;
and the states of the first target hydrogen production units to be adjusted, the running time of which is greater than a preset running time threshold value, and the second target hydrogen production units to be adjusted, the number of which is the number of the first target hydrogen production units to be adjusted and which are not in the running state, are exchanged.
Optionally, in a case that the target number is not greater than the first history number, further comprising:
screening fourth target hydrogen production units with the number being a first difference from the hydrogen production system according to the sequence of the running time in the running state from large to small, and adjusting the state of the fourth target hydrogen production units to be in a non-running state;
returning to the step of judging whether the first number of the current period is larger than the second historical number of the hydrogen production units in the hydrogen production system in the stable hydrogen production state in the last period, and sequentially executing.
Optionally, obtaining power generation parameters of the new energy power generation system and equipment parameters of the hydrogen production unit in the hydrogen production system includes:
acquiring the power generation power and a power fluctuation threshold of a new energy power generation system;
acquiring the total number of hydrogen production units in a hydrogen production system and the power interval range of the hydrogen production units; the boundaries of the power interval range are a power minimum value and a power maximum value.
Optionally, determining the target number of hydrogen production units and the hydrogen production parameters corresponding to the power generation parameters and the equipment parameters, which should be in an operating state in the hydrogen production system in the current cycle, includes:
calculating the number of minimum hydrogen production units according to the generated power and the maximum power value, and calculating the number of maximum hydrogen production units according to the generated power and the minimum power value;
calculating a number compensation value according to the power fluctuation threshold value and the maximum power value;
calculating the sum of the minimum hydrogen production unit number and the number compensation value, and taking the sum as the target number of the hydrogen production units in the hydrogen production system which are in the running state;
and determining the hydrogen production parameters of the hydrogen production unit which is supposed to be in the running state in the hydrogen production system in the current period.
Optionally, calculating a sum of the minimum number of hydrogen production units and the number compensation value, and taking the sum as a target number of hydrogen production units in the hydrogen production system that should be in an operating state, including:
calculating the sum of the minimum hydrogen production unit number and the number compensation value, and taking the sum as the initial number of the hydrogen production units in the hydrogen production system which are in the running state;
determining whether the initial number is within a preset interval range; the preset interval range is an interval range constructed by the maximum hydrogen production unit number, the total hydrogen production unit number and the minimum hydrogen production unit number;
if so, the initial number is determined to be the target number of hydrogen production units in the hydrogen production system that should be in operation.
Optionally, determining hydrogen production parameters of the hydrogen production unit in the hydrogen production system, which should be in an operating state, in the current cycle includes:
calculating a first number of hydrogen production units which should be in a stable hydrogen production state in the current period and a second number of hydrogen production units which should be in a fluctuating hydrogen production state in the current period according to the target number, the number compensation value and the designated multiple;
calculating the hydrogen production power of the hydrogen production unit which is in a stable hydrogen production state in the current period according to the generated power, the power fluctuation threshold and the first number;
and calculating the hydrogen production power of the hydrogen production units in the fluctuation hydrogen production state in the current period according to the power generation power, the second number, and the hydrogen production power and the first number of the hydrogen production units in the stable hydrogen production state in the current period.
Optionally, obtaining the state of the hydrogen production unit in the hydrogen production system in the previous cycle comprises:
acquiring the state of a hydrogen production unit in the hydrogen production system in the previous period; the state comprises a state identifier and a duration corresponding to the state identifier; the state identification comprises an operating state or a non-operating state; the operating state includes a steady hydrogen production state or a fluctuating hydrogen production state.
An operation state control device of a hydrogen production unit, comprising:
the parameter acquisition module is used for acquiring power generation parameters of the new energy power generation system and equipment parameters of a hydrogen production unit in the hydrogen production system;
the parameter determining module is used for determining the target number and the hydrogen production parameters of the hydrogen production units which are in the operation state in the hydrogen production system in the current period and correspond to the power generation parameters and the equipment parameters;
the state acquisition module is used for acquiring the state of a hydrogen production unit in the hydrogen production system in the previous period;
and the state adjusting module is used for adjusting the state of the hydrogen production units in the hydrogen production system in the current period according to the state of the hydrogen production units in the previous period and the target number of the hydrogen production units in the current period, which should be in the running state.
Optionally, the state adjustment module includes:
the first judgment submodule is used for judging whether the target quantity in the current period is larger than the first historical quantity of the hydrogen production units in the hydrogen production system in the running state in the previous period;
the first state adjusting submodule is used for selecting first target hydrogen production units which are not in the running state in the current period and are in a first difference value from the hydrogen production system under the condition that the target number is larger than the first historical number, and adjusting the states of the first target hydrogen production units to be in a fluctuating hydrogen production state; the first difference is an absolute difference between the target quantity and the first historical quantity;
the second judgment submodule is used for judging whether the first number of the current period is larger than the second historical number of the hydrogen production units in the hydrogen production system in the stable hydrogen production state in the previous period; the first number is the number of hydrogen production units which are in a stable hydrogen production state in the current period;
the second state adjusting submodule is used for screening out second target hydrogen production units with the number being a second difference value according to the sequence that the running time of the hydrogen production units in the fluctuating hydrogen production state is reduced from high to low under the condition that the first number is greater than the second historical number, and adjusting the state of the second target hydrogen production units to be in a stable hydrogen production state; the second difference is an absolute difference between the first number and the second historical number;
and the third state adjusting submodule is used for exchanging the states of the first target hydrogen production units to be adjusted, the running time of which is greater than a preset running time threshold value, and the second target hydrogen production units to be adjusted, the number of which is equal to that of the first target hydrogen production units to be adjusted, and the second target hydrogen production units to be adjusted, which are not in the running state.
Optionally, the method further comprises:
a fourth state adjustment submodule, configured to, when the first number is not greater than the second historical number, screen out, in order from small to large, third target hydrogen production units whose number is the second difference in the operation time in the stable hydrogen production state, and adjust the state of the third target hydrogen production units to a fluctuating hydrogen production state;
and the third state adjusting submodule is also used for exchanging the states of the first target hydrogen production units to be adjusted, which are in the running state and have the running time larger than a preset running time threshold value, with the states of the second target hydrogen production units to be adjusted, which are in the running state and are not in the running state, after the fourth state adjusting submodule adjusts the state of the third target hydrogen production unit to be in the fluctuating hydrogen production state.
Optionally, the method further comprises:
a fifth state adjustment submodule, configured to, when the target number is not greater than the first historical number, screen out fourth target hydrogen production units, the number of which is a first difference, from the hydrogen production system in an order from a large running time to a small running time in a running state, and adjust the state of the fourth target hydrogen production units to a non-running state;
and the second judgment sub-module is further configured to judge whether the first number in the current cycle is greater than a second historical number of hydrogen production units in a stable hydrogen production state in the hydrogen production system in the previous cycle after the fifth state adjustment sub-module adjusts the state of the fourth target hydrogen production unit to the non-operating state.
A storage medium including a stored program, wherein, when the program runs, a device in which the storage medium is located is controlled to execute the above-mentioned operation state control method.
An electronic device, comprising: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to execute the run state control method described above.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method for controlling the running state of hydrogen production units and a related device, which can determine the target number and the hydrogen production parameters of the hydrogen production units in the current cycle, which correspond to the power generation parameters of a new energy power generation system and the equipment parameters of the hydrogen production units in the hydrogen production system, and can also determine the state of the current cycle by considering the state of the hydrogen production units in the previous cycle, namely considering the external condition and the self condition of the hydrogen production units, besides the target number and the hydrogen production parameters of the hydrogen production units in the current cycle, which are in the running state, when adjusting the state of the hydrogen production units in the current cycle, thereby avoiding the mode of directly controlling the start and stop of the hydrogen production units and the hydrogen production power in real time according to the power generation parameters of the new energy power generation system, the hydrogen production power of the hydrogen production unit changes greatly and the hydrogen production unit is started and stopped frequently, so that the service life of the hydrogen production unit is shortened and the hydrogen production efficiency is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic diagram of a hydrogen production scenario in an embodiment of the invention;
fig. 2 is a flowchart of a method of controlling an operating status according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method of controlling an operating condition according to another embodiment of the present invention;
FIG. 4 is a flowchart of a method for controlling an operating condition according to another embodiment of the present invention;
FIG. 5 is a flowchart of a method for controlling an operating condition according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of an operation state control device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The electric energy of the hydrogen production system can be from a power grid, and in addition, referring to fig. 1, the electric energy can also be from a new energy power generation system (such as photovoltaic, wind power and the like in fig. 1), and the new energy power generation system and/or the power grid supply power for the hydrogen production unit in the hydrogen production system, so that the hydrogen production unit performs water electrolysis hydrogen production operation by using the electric energy.
The power generation state of the new energy power generation system can affect the hydrogen production state of the hydrogen production unit. At present, a new energy power generation system is easily influenced by environmental factors such as illumination, wind power, temperature, humidity and the like, so that the new energy power generation system has randomness and instability in power generation, if electric energy is directly connected into an electrolytic cell of a hydrogen production unit, the fluctuation current and voltage of the input electric energy cause the random drift of the working point of the electrolytic cell, the hydrogen production power of the electrolytic cell is small in size and frequent in starting and stopping, further, the mass transfer in the electrolytic cell is influenced, and the hydrogen production quantity, the service life and the efficiency of the electrolytic cell are influenced. That is, the power generation parameters of the new energy power generation system, such as the power generation power, are directly used to adjust the start-stop of the hydrogen production unit and the hydrogen production power in real time, so that the service life of the hydrogen production unit and the hydrogen production efficiency are reduced.
Therefore, the inventor finds that if the state of the hydrogen production units in the hydrogen production system in the current period can be adjusted based on the state of the hydrogen production units in the previous period, the target number of the hydrogen production units in the current period and the hydrogen production parameters, the hydrogen production units in the hydrogen production system are in the running state, and frequent starting and stopping of the hydrogen production units are avoided. Aiming at the problem of large hydrogen production power change, if the target number and the hydrogen production parameters of the hydrogen production units in the hydrogen production system in the current period, which should be in the operation state, can be determined based on the power generation parameters and the equipment parameters, the problems of system efficiency and service life reduction caused by frequent start and stop of the hydrogen production units and the fact that all the operated hydrogen production units operate in the fluctuation power hydrogen production mode due to independent control of each hydrogen production system can be avoided.
Specifically, the target number and the hydrogen production parameters of the hydrogen production units in the hydrogen production system in the current period, which correspond to the power generation parameters of the new energy power generation system and the equipment parameters of the hydrogen production units in the hydrogen production system, can be determined, and when the state of the hydrogen production units in the hydrogen production system in the current period is adjusted, the state of the hydrogen production units in the hydrogen production system in the previous period is considered besides the target number and the hydrogen production parameters of the hydrogen production units in the current period, namely the state of the hydrogen production units in the previous period is considered from the external condition and the self condition of the hydrogen production units, so that the large change of the hydrogen production power of the hydrogen production units and the frequent start and stop of the hydrogen production units caused by directly controlling the start and stop of the hydrogen production power of the hydrogen production units in real time according to the power generation parameters of the new energy power generation system can be avoided, thereby reducing the service life of the hydrogen production unit and the hydrogen production efficiency.
On the basis of the above, an embodiment of the present invention provides a method for controlling an operation state of a hydrogen production unit, which is applied to a controller in a hydrogen production system, and referring to fig. 1, the hydrogen production system includes at least two hydrogen production units, each of the hydrogen production units includes: a hydrogen production power supply and hydrogen production equipment, wherein the hydrogen production equipment comprises a post-treatment unit and a purification unit.
The electric energy of photovoltaic power generation can be transmitted to the hydrogen production unit through the photovoltaic grid-connected inverter, the wind power can be transmitted to the hydrogen production unit through the wind power converter, and the electric energy of the power grid can be directly transmitted to the hydrogen production unit.
In the embodiment, each hydrogen production unit is controlled by a controller, and the controller can control the starting and stopping of the hydrogen production units and the hydrogen production power. In this embodiment, a power generation system using a new energy with volatility such as wind energy and photovoltaic power is used for supplying power.
Referring to fig. 2, the operation state control method of the hydrogen production unit may include:
and S11, acquiring power generation parameters of the new energy power generation system and equipment parameters of a hydrogen production unit in the hydrogen production system.
In this embodiment, the power generation parameter of the new energy power generation system may be the real-time power generation power P of the new energy power generation systemNAnd a power fluctuation threshold Δ PmaxPower fluctuation threshold Δ PmaxMay be a power fluctuation maximum.
Wherein the work isThe rate fluctuation threshold may be a maximum value of power variation within a preset time period from the current cycle. Specifically, according to the characteristics of the new energy system, such as the illumination intensity, the wind speed, the time and other factors, the power fluctuation threshold value delta P of the new energy power generation system is determinedmaxAs the photovoltaic system is in time period 8: 00-18: when there is illumination in 00 days, the power change of every 5 minutes in 1 day of history is taken as basic data, the maximum value of the power change is screened out and taken as a power fluctuation threshold value delta Pmax. In addition, the power fluctuation threshold value in a future period of time can be predicted in a prediction mode.
It should be noted that the power generation parameter in the present embodiment may be the generated power P described aboveNAnd a power fluctuation threshold Δ PmaxBesides, the power generation parameter may be the generated current and the current fluctuation threshold, or the generated voltage and the voltage fluctuation threshold, in this embodiment, the generated power P is the generated powerNAnd a power fluctuation threshold Δ PmaxThe description is given for the sake of example. When the power generation parameter is the power generation current and the current fluctuation threshold value, or the power generation voltage and the voltage fluctuation threshold value, the same is true.
In this example, the equipment parameters of the hydrogen production unit in the hydrogen production system include:
the total number of hydrogen production units in the hydrogen production system is 5, if the total number of hydrogen production units in the hydrogen production system is 5.
The power interval range [ P ] of the hydrogen production unitH_min,PH_max](ii) a The interval boundary of the power range is a power minimum value PH_minAnd maximum value of power PH_max. Wherein the power minimum value PH_minAnd maximum value of power PH_maxIs the minimum power value P of a single hydrogen production unitH_minAnd maximum value of power PH_max。
Then, obtaining the power generation parameters of the new energy power generation system and the equipment parameters of the hydrogen production unit in the hydrogen production system from the above, including:
acquiring the power generation power and a power fluctuation threshold of a new energy power generation system;
acquiring the total number of hydrogen production units in a hydrogen production system and the power interval range of the hydrogen production units; the boundaries of the power interval range are a power minimum value and a power maximum value.
And S12, determining the target number of hydrogen production units and the hydrogen production parameters corresponding to the power generation parameters and the equipment parameters and in the current period, wherein the hydrogen production units are in the running state.
In this embodiment, the hydrogen production parameters include hydrogen production power. The target number refers to the number of hydrogen production units that should be operated to produce hydrogen for the current cycle.
It should be noted that the power generation parameter P of the new energy power generation system needs to be determinedNWhether or not it is greater than the minimum power value P of the hydrogen production unitH_minIf the power generation parameter is larger than the minimum power requirement of the hydrogen production unit, executing step S12, and if the power generation parameter is not larger than the minimum power requirement, determining that the power generation parameter cannot meet the minimum power requirement of the hydrogen production unit, and executing step S12 until the power generation parameter is larger than the minimum power requirement.
In this embodiment, the method for controlling the operation state of the hydrogen production unit according to the embodiment of the present invention is performed according to a period, where the period may be 10min or another value, so as to avoid frequent start-stop of the hydrogen production unit.
And S13, acquiring the state of the hydrogen production unit in the hydrogen production system in the previous period.
In this embodiment, the state includes a state identifier and a duration corresponding to the state identifier; the state identification comprises an operating state or a non-operating state; the operating state includes a steady hydrogen production state or a fluctuating hydrogen production state.
Wherein, the non-operation state means that the hydrogen production unit does not work, and can be in a standby state or a shutdown state.
The operation state can be divided into two states, one state is a stable hydrogen production state, and the hydrogen production power of the hydrogen production unit is fixed in the stable hydrogen production state.
The other is a fluctuation hydrogen production state, and the hydrogen production power of the hydrogen production unit fluctuates according to the power fluctuation trend of the new energy power generation system in the fluctuation hydrogen production state.
In this embodiment, in addition to the status flag, the duration of each status is also recorded.
In this example, the total number of hydrogen production units is represented by I, the number of hydrogen production units in an operating state is represented by I, and the number of hydrogen production units in a stable hydrogen production state is represented by I1The number of hydrogen production units in the fluctuating hydrogen production state is represented by i2And (4) showing.
Recording the running time t of each hydrogen production unit in a stable hydrogen production state1iThe operating time of the hydrogen production unit in the fluctuating hydrogen production state is t2iThe time t representing the hydrogen production unit in the non-operating state3iAnd (4) showing.
Wherein, when the hydrogen production unit is operated, the parameter t of the hydrogen production unit3iZero clearing, the parameter t of the hydrogen production unit when the hydrogen production unit does not operate1i、t2iAnd (6) clearing. That is, one hydrogen production unit has three time attributes, when the hydrogen production unit works in one state, the corresponding time attribute starts to time, and the other two time attributes are cleared.
And S14, adjusting the state of the hydrogen production units in the hydrogen production system in the current period according to the state of the hydrogen production units in the previous period and the target number of the hydrogen production units in the current period, wherein the hydrogen production units are in the operation state.
In this embodiment, the state of the hydrogen production unit in the operating state in the previous cycle may be adjusted to the non-operating state, or the operating state of the hydrogen production unit in the non-operating state in the previous cycle may be adjusted to the operating state. In addition, the hydrogen production unit can be adjusted from a stable hydrogen production state to a fluctuating hydrogen production state, or the hydrogen production unit can be adjusted from the fluctuating hydrogen production state to the stable hydrogen production state.
In the embodiment, the target number and the hydrogen production parameters of the hydrogen production units in the hydrogen production system in the current period, which correspond to the power generation parameters of the new energy power generation system and the equipment parameters of the hydrogen production units in the hydrogen production system, and which should be in the operating state in the current period can be determined, and when the state of the hydrogen production units in the hydrogen production system in the current period is adjusted, the state of the hydrogen production units in the hydrogen production system in the previous period is considered besides the target number and the hydrogen production parameters of the hydrogen production units in the operating state in the current period, namely the state of the hydrogen production units in the previous period is considered from the external condition and the self condition of the hydrogen production units, so that the situation that the hydrogen production power of the hydrogen production units changes greatly and the hydrogen production units are started and stopped frequently due to the fact that the start and stop of the hydrogen production units are controlled in real time directly according to the power generation parameters of the new energy power generation system can be avoided, thereby reducing the service life of the hydrogen production unit and the hydrogen production efficiency.
In another implementation manner of the present invention, referring to fig. 3, step S12 may include:
and S21, calculating the minimum number of hydrogen production units according to the generated power and the maximum value of the power, and calculating the maximum number of hydrogen production units according to the generated power and the minimum value of the power.
In this example, the minimum number of hydrogen production units is iminAnd (4) showing.
Figure BDA0003236069220000111
Wherein, PNFor the generated power of a new energy power generation system, PH_maxThe power maximum mentioned above.
Maximum number of hydrogen production units imaxAnd (4) showing.
Figure BDA0003236069220000112
Wherein, PH_minThe power minimum value mentioned above.
In this embodiment, i may be determined once per execution cycleminAnd imax. The execution period may be set to 10min or other values to avoid frequent start-ups and stops of the hydrogen production unit.
And S22, calculating a number compensation value according to the power fluctuation threshold value and the maximum power value.
In this embodiment, in order to ensure that the hydrogen production units have a margin, the hydrogen production units with the number of compensation values can be added into the hydrogen production operation.
In this embodiment, the number compensation value is represented by Δ i.
Figure BDA0003236069220000113
Wherein, Δ PmaxIndicating a power fluctuation threshold, PH_maxThe power maximum mentioned above.
And S23, calculating the sum of the minimum hydrogen production unit number and the number compensation value, and taking the sum as the target number of the hydrogen production units in the hydrogen production system which are in the running state.
In the present embodiment, the target number is represented by i. Wherein i ═ imin+Δi。
In practical applications, the calculated target number I may exceed the total number I of hydrogen production units in the hydrogen production system, resulting in the determined target number not being used normally. Therefore, in this example, after the minimum number of hydrogen producing units and the sum of the number compensation values are calculated, the sum is checked.
Specifically, step S23 may include:
1) and calculating the sum of the minimum hydrogen production unit number and the number compensation value, and taking the sum as the initial number of the hydrogen production units in the hydrogen production system which are in the running state.
2) And determining whether the initial number is within a preset interval range.
The preset interval range is an interval range constructed by the maximum hydrogen production unit number, the total hydrogen production unit number and the minimum hydrogen production unit number.
In this embodiment, it should be ensured that the number i of hydrogen production units in operation satisfies:
i∈[imin,min(I,imax)]wherein
Figure BDA0003236069220000121
3) If so, the initial number is determined to be the target number of hydrogen production units in the hydrogen production system that should be in operation.
If the number is within the above range, the initial number is set as the target number.
If i is smaller than iminThen i takes the value imin. If I is greater than min (I, I)max) If so, I takes the value min (I, I)max)。
And S24, determining the hydrogen production parameters of the hydrogen production unit in the current period, which is supposed to be in the operation state, in the hydrogen production system.
In this embodiment, the hydrogen production parameters include hydrogen production power, and in this embodiment, a power average distribution mode may be adopted to evenly distribute the generated power of the new energy system to each hydrogen production unit in an operating state, and the power P of each hydrogen production unitHIs composed of
Figure BDA0003236069220000122
Wherein, PNAnd i is the target quantity, namely, the ratio of the generated power to the target quantity is used as the hydrogen production power of the hydrogen production unit in the hydrogen production system in the current period, wherein the hydrogen production unit is in the running state.
The method is a simple power distribution method, if the power variation amplitude is further reduced, an optimal distribution method can be adopted, the hydrogen production units in the running state are divided into the stable hydrogen production state and the fluctuation hydrogen production state, and the hydrogen production power of each state is respectively determined.
Referring to fig. 4, the details are as follows:
and S31, calculating the first number of the hydrogen production units which should be in the stable hydrogen production state in the current period and the second number of the hydrogen production units which should be in the fluctuating hydrogen production state in the current period according to the target number, the number compensation value and the designated multiple.
In the present embodiment, the designated multiple may be a numerical value in the range of 1.5 to 2, and in the case where the calculated first number and second number are not positive integers, the first number and second number may be determined in a rounded manner.
First number i of hydrogen production units which should be in a stable hydrogen production state in the current period1The value of (d) is a specified multiple of the target number i-the number compensation value Δ i.
The second number i of hydrogen production units which should be in the fluctuation hydrogen production state in the current period2The value of (d) is a multiple of the number compensation value Δ i.
And S32, calculating the hydrogen production power of the hydrogen production units which are in the stable hydrogen production state in the current period according to the generated power, the power fluctuation threshold and the first number.
In particular, the first number i1The hydrogen production power of each hydrogen production unit is PH_con1，
Figure BDA0003236069220000131
Wherein, PNIs the generated power of a new energy power generation system, delta PmaxRepresenting a power fluctuation threshold.
And S33, calculating the hydrogen production power of the hydrogen production units in the fluctuation hydrogen production state in the current period according to the power generation power, the second number, and the hydrogen production power and the first number of the hydrogen production units in the stable hydrogen production state in the current period.
In particular, the second number i2P for hydrogen production power of hydrogen production unitH_con2Expressed, as:
Figure BDA0003236069220000132
wherein, PNFor the generated power of a new energy power generation system, PH_con1Is i1Hydrogen production power of each hydrogen production unit.
In this embodiment, after the power generation parameters and the equipment parameters are determined, the target number and the hydrogen production parameters of the hydrogen production units in the hydrogen production system in the current period, which should be in the operating state, can be determined through the method steps in this embodiment, so that the current operating state of the hydrogen production units can be controlled, and frequent start-stop is avoided.
In another implementation of the present invention, referring to fig. 5, the step S14 "adjusting the state of the hydrogen production unit in the hydrogen production system in the current cycle according to the state of the hydrogen production unit in the previous cycle and the target number of hydrogen production units in the current cycle that should be in the operating state in the current cycle" may include:
s41, judging whether the target quantity is larger than the first historical quantity; if yes, go to step S42; if not, step S43 is executed.
Specifically, it is determined whether the target number for the current cycle is greater than a first historical number of hydrogen production units in the hydrogen production system that were in an operational state for a previous cycle.
In this embodiment, the first historical number refers to the number of hydrogen-producing units in the hydrogen-producing system that were in operation in the previous cycle.
It is determined whether the target number for the current cycle is greater than the first historical number, that is, whether the number of hydrogen production units required to produce hydrogen for the current cycle is greater than the number of the previous cycle.
And S42, selecting the first target hydrogen production units which are not in the operation state in the current period and have the number of the first target hydrogen production units being the first difference value from the hydrogen production system, and adjusting the state of the first target hydrogen production units to be the fluctuation hydrogen production state.
Wherein the first difference is an absolute difference between the target quantity and the first historical quantity.
In the case where the target quantity is greater than the first historical quantity, it is indicated that a new hydrogen production unit is required to produce hydrogen. At this time, a first difference is calculated, namely, the absolute difference between the target quantity and the first historical quantity.
And then screening out the first target hydrogen production units with the number of the first difference from the hydrogen production units which are not in the running state, wherein in the embodiment, the first target hydrogen production units can be selected randomly or according to the sequence of the serial numbers from small to large.
And then controlling the working state of the first target hydrogen production unit to be adjusted to a fluctuating hydrogen production state, wherein the hydrogen production power is calculated according to the mode in the embodiment.
And S43, screening fourth target hydrogen production units with the number being the first difference from the hydrogen production system according to the sequence of the running time in the running state from large to small, and adjusting the state of the fourth target hydrogen production units to be in the non-running state.
In the case where the target number is not greater than the first historical number, it is indicated that the number of hydrogen production units needs to be reduced.
In this case, when the number of hydrogen production units is reduced, the hydrogen production unit having a longer operation time may be removed from operation, and the operation time in the operation state may be t1iOr t2iI.e., either the steady hydrogen production state or the fluctuating hydrogen production state, is calculated as the operating time in the operating state.
In this embodiment, the fourth target hydrogen production units with the number of the first difference are screened from the hydrogen production system according to the order of the running time in the running state from large to small. The first difference in this embodiment is the same as the first difference described above.
And then, adjusting the working state of the fourth target hydrogen production unit to be in a non-running state, namely controlling the fourth target hydrogen production unit to stop working.
S44, judging whether the first number is larger than the second historical number; if yes, go to step S45; if not, step S46 is executed.
Specifically, whether the first number of the current period is larger than the second historical number of the hydrogen production units in the hydrogen production system in the stable hydrogen production state in the previous period is judged.
Wherein the first number is the number of hydrogen production units which are in a stable hydrogen production state in the current period. The second historical number refers to the number of hydrogen production units in the hydrogen production system that were in a steady state hydrogen production state in the previous cycle.
That is, in this embodiment, it is determined whether the number of stable hydrogen production states required in the current cycle is greater than the number of stable hydrogen production states in the previous cycle.
S45, screening second target hydrogen production units with the number being a second difference value according to the sequence that the running time of the hydrogen production units in the fluctuating hydrogen production state is from large to small, and adjusting the state of the second target hydrogen production units to be in a stable hydrogen production state.
Wherein the second difference is an absolute difference between the first number and the second historical number.
That is, in this embodiment, when the number of hydrogen production units required to be in the stable hydrogen production state in the current cycle is larger than the number of hydrogen production units required to be in the stable hydrogen production state in the previous cycle, the operating state of the hydrogen production unit in the fluctuation hydrogen production state is adjusted to the stable hydrogen production state.
In this embodiment, when the hydrogen production units in the fluctuation hydrogen production state are screened, the operation time in the fluctuation hydrogen production state can be in the order from large to small, that is, according to t2iAnd screening hydrogen production units with a second difference value in descending order, taking the hydrogen production units as second target hydrogen production units, and adjusting the working state of the second target hydrogen production units to be a stable hydrogen production state.
And S46, screening the third target hydrogen production units with the number being the second difference value according to the sequence that the running time in the stable hydrogen production state is from small to large.
And S47, adjusting the working state of the third target hydrogen production unit to be a fluctuation hydrogen production state.
Wherein the second difference is an absolute difference between the first number and the second historical number.
In this embodiment, when the number of hydrogen production units in the stable hydrogen production state required in the current period is smaller than the number of hydrogen production units in the stable hydrogen production state in the previous period, part of the hydrogen production units in the stable hydrogen production state needs to be controlled to exit the stable hydrogen production state and be adjusted to the fluctuating hydrogen production state.
When the hydrogen production units in the stable hydrogen production state are screened, the operation time in the stable hydrogen production state is in the order from small to large, namely according to t1iAnd screening out the third target hydrogen production units with the number of the second difference value from small to large.
In the embodiment, the influence factors of the service life and the efficiency of the hydrogen production equipment are considered, the operation periods of the hydrogen production units are reasonably distributed, and the situations that some hydrogen production units work for a long time to cause equipment loss and some hydrogen production units do not work for a long time to cause lower equipment utilization rate are avoided. Therefore, the operation cycle of the hydrogen production units is reasonably arranged, the life cycle of each hydrogen production unit is balanced, the service life and the efficiency of the whole hydrogen production system are improved, and the hydrogen production units are prevented from being started and stopped frequently.
And S48, the states of the first target hydrogen production units to be adjusted, the running time of which is greater than the preset running time threshold value, and the second target hydrogen production units to be adjusted, the number of which is the number of the first target hydrogen production units to be adjusted and is not in the running state, are exchanged.
In this embodiment, in order to avoid the problem that the loss is large due to long operation time of part of the hydrogen production units, in this embodiment, a preset operation time threshold may be set, for example, half an hour, and when the operation time in the operation state is greater than the preset operation time threshold, the preset operation time threshold and the operation time in the operation state are arranged in order from long to short, and the states of the second target hydrogen production units to be adjusted, which are the same as the first target hydrogen production units to be adjusted and have the operation time in the operation state greater than the preset operation time threshold, are exchanged.
For example, if the operation time of 5 first target hydrogen production units to be adjusted in the operation state is greater than the preset operation time threshold, 5 second target hydrogen production units to be adjusted are selected according to the sequence of the time not in the operation state from large to small, and the states of the first target hydrogen production units to be adjusted and the second target hydrogen production units to be adjusted are interchanged.
On the basis of the above embodiment of the method for controlling the operation state of the hydrogen generation unit, another embodiment of the present invention provides an apparatus for controlling the operation state of a hydrogen generation unit, which, with reference to fig. 6, may include:
the parameter acquisition module 11 is used for acquiring power generation parameters of the new energy power generation system and equipment parameters of a hydrogen production unit in the hydrogen production system;
a parameter determining module 12, configured to determine a target number of hydrogen production units and hydrogen production parameters, corresponding to the power generation parameters and the equipment parameters, in the hydrogen production system in a current cycle, where the hydrogen production units are supposed to be in an operating state;
the state acquisition module 13 is used for acquiring the state of a hydrogen production unit in the hydrogen production system in the previous period;
and the state adjusting module 14 is configured to adjust the state of the hydrogen production units in the hydrogen production system in the current period according to the state of the hydrogen production units in the previous period and the target number of the hydrogen production units in the current period, which should be in the operating state.
Further, the state adjustment module includes:
the first judgment submodule is used for judging whether the target quantity in the current period is larger than the first historical quantity of the hydrogen production units in the hydrogen production system in the running state in the previous period;
the first state adjusting submodule is used for selecting first target hydrogen production units which are not in the running state in the current period and are in a first difference value from the hydrogen production system under the condition that the target number is larger than the first historical number, and adjusting the states of the first target hydrogen production units to be in a fluctuating hydrogen production state; the first difference is an absolute difference between the target quantity and the first historical quantity;
the second judgment submodule is used for judging whether the first number of the current period is larger than the second historical number of the hydrogen production units in the hydrogen production system in the stable hydrogen production state in the previous period; the first number is the number of hydrogen production units which are in a stable hydrogen production state in the current period;
the second state adjusting submodule is used for screening out second target hydrogen production units with the number being a second difference value according to the sequence that the running time of the hydrogen production units in the fluctuating hydrogen production state is reduced from high to low under the condition that the first number is greater than the second historical number, and adjusting the state of the second target hydrogen production units to be in a stable hydrogen production state; the second difference is an absolute difference between the first number and the second historical number;
and the third state adjusting submodule is used for exchanging the states of the first target hydrogen production units to be adjusted, the running time of which is greater than a preset running time threshold value, and the second target hydrogen production units to be adjusted, the number of which is equal to that of the first target hydrogen production units to be adjusted, and the second target hydrogen production units to be adjusted, which are not in the running state.
Further, still include:
a fourth state adjustment submodule, configured to, when the first number is not greater than the second historical number, screen out, in order from small to large, third target hydrogen production units whose number is the second difference in the operation time in the stable hydrogen production state, and adjust the state of the third target hydrogen production units to a fluctuating hydrogen production state;
and the third state adjusting submodule is also used for exchanging the states of the first target hydrogen production units to be adjusted, which are in the running state and have the running time larger than a preset running time threshold value, with the states of the second target hydrogen production units to be adjusted, which are in the running state and are not in the running state, after the fourth state adjusting submodule adjusts the state of the third target hydrogen production unit to be in the fluctuating hydrogen production state.
Further, still include:
a fifth state adjustment submodule, configured to, when the target number is not greater than the first historical number, screen out fourth target hydrogen production units, the number of which is a first difference, from the hydrogen production system in an order from a large running time to a small running time in a running state, and adjust the state of the fourth target hydrogen production units to a non-running state;
and the second judgment sub-module is further configured to judge whether the first number in the current cycle is greater than a second historical number of hydrogen production units in a stable hydrogen production state in the hydrogen production system in the previous cycle after the fifth state adjustment sub-module adjusts the state of the fourth target hydrogen production unit to the non-operating state.
Further, when the parameter obtaining module 11 is used to obtain the power generation parameters of the new energy power generation system and the device parameters of the hydrogen production unit in the hydrogen production system, it is specifically used to:
acquiring the power generation power and a power fluctuation threshold of a new energy power generation system;
acquiring the total number of hydrogen production units in a hydrogen production system and the power interval range of the hydrogen production units; the boundaries of the power interval range are a power minimum value and a power maximum value.
Further, the parameter determination module 12 includes:
the number calculation submodule is used for calculating the number of the minimum hydrogen production units according to the generated power and the maximum power value, and calculating the number of the maximum hydrogen production units according to the generated power and the minimum power value;
the compensation value operator module is used for calculating the number compensation value according to the power fluctuation threshold value and the maximum power value;
the quantity calculation submodule is used for calculating the sum of the minimum hydrogen production unit quantity and the number compensation value and taking the sum as the target quantity of the hydrogen production units in the hydrogen production system in the running state;
and the parameter determination submodule is used for determining the hydrogen production parameters of the hydrogen production unit in the current period, which is supposed to be in the running state, in the hydrogen production system.
Further, the quantity calculation submodule includes:
the quantity calculating unit is used for calculating the sum of the minimum hydrogen production unit quantity and the number compensation value and taking the sum as the initial quantity of the hydrogen production units in the hydrogen production system in the running state;
the determining unit is used for determining whether the initial quantity is within a preset interval range; the preset interval range is an interval range constructed by the maximum hydrogen production unit number, the total hydrogen production unit number and the minimum hydrogen production unit number;
a quantity determination unit for, if so, determining the initial quantity as a target quantity of hydrogen production units in the hydrogen production system that should be in operation.
Further, the parameter determination submodule includes:
the number determining unit is used for calculating the first number of the hydrogen production units in the stable hydrogen production state in the current period and the second number of the hydrogen production units in the fluctuating hydrogen production state in the current period according to the target number, the number compensation value and the designated multiple;
the first power calculation unit is used for calculating the hydrogen production power of the hydrogen production unit in a stable hydrogen production state in the current period according to the generated power, the power fluctuation threshold and the first number;
and the second power calculating unit is used for calculating the hydrogen production power of the hydrogen production units in the fluctuation hydrogen production state in the current period according to the power generation power, the second number, and the hydrogen production power and the first number of the hydrogen production units in the stable hydrogen production state in the current period.
Further, the state obtaining module 13 is specifically configured to:
acquiring the state of a hydrogen production unit in the hydrogen production system in the previous period; the state comprises a state identifier and a duration corresponding to the state identifier; the state identification comprises an operating state or a non-operating state; the operating state includes a steady hydrogen production state or a fluctuating hydrogen production state.
In the embodiment, the target number and the hydrogen production parameters of the hydrogen production units in the hydrogen production system in the current period, which correspond to the power generation parameters of the new energy power generation system and the equipment parameters of the hydrogen production units in the hydrogen production system, and which should be in the operating state in the current period can be determined, and when the state of the hydrogen production units in the hydrogen production system in the current period is adjusted, the state of the hydrogen production units in the hydrogen production system in the previous period is considered besides the target number and the hydrogen production parameters of the hydrogen production units in the operating state in the current period, namely the state of the hydrogen production units in the previous period is considered from the external condition and the self condition of the hydrogen production units, so that the situation that the hydrogen production power of the hydrogen production units changes greatly and the hydrogen production units are started and stopped frequently due to the fact that the start and stop of the hydrogen production units are controlled in real time directly according to the power generation parameters of the new energy power generation system can be avoided, thereby reducing the service life of the hydrogen production unit and the hydrogen production efficiency.
It should be noted that, for the working processes of each module, sub-module, and unit in this embodiment, please refer to the corresponding description in the above embodiments, which is not described herein again.
Alternatively, on the basis of the embodiments of the method and the device for controlling the operating state of the hydrogen production unit, another embodiment of the present invention provides a storage medium, which includes a stored program, wherein when the program runs, a device in which the storage medium is controlled to execute the method for controlling the operating state is provided.
Alternatively, on the basis of the above-described embodiment of the method and apparatus for controlling the operating state of the hydrogen production unit, another embodiment of the present invention provides an electronic device, including: a memory and a processor;
wherein the memory is used for storing programs;
the processor calls a program and is used to execute the run state control method described above.
In the embodiment, the target number and the hydrogen production parameters of the hydrogen production units in the hydrogen production system in the current period, which correspond to the power generation parameters of the new energy power generation system and the equipment parameters of the hydrogen production units in the hydrogen production system, and which should be in the operating state in the current period can be determined, and when the state of the hydrogen production units in the hydrogen production system in the current period is adjusted, the state of the hydrogen production units in the hydrogen production system in the previous period is considered besides the target number and the hydrogen production parameters of the hydrogen production units in the operating state in the current period, namely the state of the hydrogen production units in the previous period is considered from the external condition and the self condition of the hydrogen production units, so that the situation that the hydrogen production power of the hydrogen production units changes greatly and the hydrogen production units are started and stopped frequently due to the fact that the start and stop of the hydrogen production units are controlled in real time directly according to the power generation parameters of the new energy power generation system can be avoided, thereby reducing the service life of the hydrogen production unit and the hydrogen production efficiency.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (15)

1. A method for controlling an operation state of a hydrogen production unit, comprising:
acquiring power generation parameters of a new energy power generation system and equipment parameters of a hydrogen production unit in the hydrogen production system;
determining the target number and hydrogen production parameters of the hydrogen production units which are in the operation state in the hydrogen production system in the current period and correspond to the power generation parameters and the equipment parameters;
acquiring the state of a hydrogen production unit in the hydrogen production system in the previous period;
and adjusting the state of the hydrogen production units in the hydrogen production system in the current period according to the state of the hydrogen production units in the previous period and the target number of the hydrogen production units in the current period, which should be in the running state.
2. The operating condition control method according to claim 1, wherein adjusting the state of the hydrogen production unit in the hydrogen production system in the current cycle according to the state of the hydrogen production unit in the previous cycle and the target number of hydrogen production units in the current cycle that should be in the operating state comprises:
judging whether the target number of the current period is larger than a first historical number of hydrogen production units in the hydrogen production system in the running state in the previous period;
under the condition that the target quantity is larger than the first historical quantity, selecting first target hydrogen production units which are not in the running state in the current period and are in the first difference value in quantity from the hydrogen production system, and adjusting the states of the first target hydrogen production units to be in the fluctuation hydrogen production state; the first difference is an absolute difference between the target quantity and the first historical quantity;
judging whether the first number of the current period is larger than the second historical number of the hydrogen production units in the hydrogen production system in the stable hydrogen production state in the previous period; the first number is the number of hydrogen production units which are in a stable hydrogen production state in the current period;
under the condition that the first number is larger than the second historical number, screening out second target hydrogen production units with the number being a second difference value according to the sequence that the running time of the hydrogen production units in the fluctuating hydrogen production state is from large to small, and adjusting the state of the second target hydrogen production units to be in a stable hydrogen production state; the second difference is an absolute difference between the first number and the second historical number;
and the states of the first target hydrogen production units to be adjusted, the running time of which is greater than a preset running time threshold value, and the second target hydrogen production units to be adjusted, the number of which is the number of the first target hydrogen production units to be adjusted and which are not in the running state, are exchanged.
3. The operating state control method according to claim 2, further comprising, in a case where the first number is not greater than the second history number:
screening out the third target hydrogen production units with the number of the second difference values according to the sequence that the running time in the stable hydrogen production state is from small to large;
adjusting the state of the third target hydrogen production unit to a fluctuating hydrogen production state;
and the states of the first target hydrogen production units to be adjusted, the running time of which is greater than a preset running time threshold value, and the second target hydrogen production units to be adjusted, the number of which is the number of the first target hydrogen production units to be adjusted and which are not in the running state, are exchanged.
4. The operating state control method according to claim 2, further comprising, in a case where the target number is not greater than the first history number:
screening fourth target hydrogen production units with the number being a first difference from the hydrogen production system according to the sequence of the running time in the running state from large to small, and adjusting the state of the fourth target hydrogen production units to be in a non-running state;
returning to the step of judging whether the first number of the current period is larger than the second historical number of the hydrogen production units in the hydrogen production system in the stable hydrogen production state in the last period, and sequentially executing.
5. The operating condition control method according to claim 1, wherein obtaining the power generation parameters of the new energy power generation system and the equipment parameters of the hydrogen production unit in the hydrogen production system comprises:
acquiring the power generation power and a power fluctuation threshold of a new energy power generation system;
acquiring the total number of hydrogen production units in a hydrogen production system and the power interval range of the hydrogen production units; the boundaries of the power interval range are a power minimum value and a power maximum value.
6. The operating condition control method according to claim 5, wherein determining the target number of hydrogen production units and the hydrogen production parameters corresponding to the power generation parameters and the plant parameters, which should be in an operating condition in the hydrogen production system at the present cycle, comprises:
calculating the number of minimum hydrogen production units according to the generated power and the maximum power value, and calculating the number of maximum hydrogen production units according to the generated power and the minimum power value;
calculating a number compensation value according to the power fluctuation threshold value and the maximum power value;
calculating the sum of the minimum hydrogen production unit number and the number compensation value, and taking the sum as the target number of the hydrogen production units in the hydrogen production system which are in the running state;
and determining the hydrogen production parameters of the hydrogen production unit which is supposed to be in the running state in the hydrogen production system in the current period.
7. The operating condition control method according to claim 6, wherein calculating the sum of the minimum number of hydrogen production units and the number compensation value as the target number of hydrogen production units to be in an operating condition in the hydrogen production system comprises:
calculating the sum of the minimum hydrogen production unit number and the number compensation value, and taking the sum as the initial number of the hydrogen production units in the hydrogen production system which are in the running state;
determining whether the initial number is within a preset interval range; the preset interval range is an interval range constructed by the maximum hydrogen production unit number, the total hydrogen production unit number and the minimum hydrogen production unit number;
if so, the initial number is determined to be the target number of hydrogen production units in the hydrogen production system that should be in operation.
8. The operating condition control method according to claim 6, wherein determining hydrogen production parameters of the hydrogen production unit in the hydrogen production system that should be in an operating condition in a current cycle comprises:
calculating a first number of hydrogen production units which should be in a stable hydrogen production state in the current period and a second number of hydrogen production units which should be in a fluctuating hydrogen production state in the current period according to the target number, the number compensation value and the designated multiple;
calculating the hydrogen production power of the hydrogen production unit which is in a stable hydrogen production state in the current period according to the generated power, the power fluctuation threshold and the first number;
and calculating the hydrogen production power of the hydrogen production units in the fluctuation hydrogen production state in the current period according to the power generation power, the second number, and the hydrogen production power and the first number of the hydrogen production units in the stable hydrogen production state in the current period.
9. The operating condition control method according to claim 1, wherein obtaining the condition of the hydrogen production unit in the hydrogen production system in the previous cycle comprises:
acquiring the state of a hydrogen production unit in the hydrogen production system in the previous period; the state comprises a state identifier and a duration corresponding to the state identifier; the state identification comprises an operating state or a non-operating state; the operating state includes a steady hydrogen production state or a fluctuating hydrogen production state.
10. An operation state control device of a hydrogen production unit, characterized by comprising:
the parameter acquisition module is used for acquiring power generation parameters of the new energy power generation system and equipment parameters of a hydrogen production unit in the hydrogen production system;
the parameter determining module is used for determining the target number and the hydrogen production parameters of the hydrogen production units which are in the operation state in the hydrogen production system in the current period and correspond to the power generation parameters and the equipment parameters;
the state acquisition module is used for acquiring the state of a hydrogen production unit in the hydrogen production system in the previous period;
and the state adjusting module is used for adjusting the state of the hydrogen production units in the hydrogen production system in the current period according to the state of the hydrogen production units in the previous period and the target number of the hydrogen production units in the current period, which should be in the running state.
11. The operating state control device according to claim 10, wherein the state adjustment module includes:
the first judgment submodule is used for judging whether the target quantity in the current period is larger than the first historical quantity of the hydrogen production units in the hydrogen production system in the running state in the previous period;
the first state adjusting submodule is used for selecting first target hydrogen production units which are not in the running state in the current period and are in a first difference value from the hydrogen production system under the condition that the target number is larger than the first historical number, and adjusting the states of the first target hydrogen production units to be in a fluctuating hydrogen production state; the first difference is an absolute difference between the target quantity and the first historical quantity;
the second judgment submodule is used for judging whether the first number of the current period is larger than the second historical number of the hydrogen production units in the hydrogen production system in the stable hydrogen production state in the previous period; the first number is the number of hydrogen production units which are in a stable hydrogen production state in the current period;
the second state adjusting submodule is used for screening out second target hydrogen production units with the number being a second difference value according to the sequence that the running time of the hydrogen production units in the fluctuating hydrogen production state is reduced from high to low under the condition that the first number is greater than the second historical number, and adjusting the state of the second target hydrogen production units to be in a stable hydrogen production state; the second difference is an absolute difference between the first number and the second historical number;
and the third state adjusting submodule is used for exchanging the states of the first target hydrogen production units to be adjusted, the running time of which is greater than a preset running time threshold value, and the second target hydrogen production units to be adjusted, the number of which is equal to that of the first target hydrogen production units to be adjusted, and the second target hydrogen production units to be adjusted, which are not in the running state.
12. The operating state control device according to claim 11, characterized by further comprising:
a fourth state adjustment submodule, configured to, when the first number is not greater than the second historical number, screen out, in order from small to large, third target hydrogen production units whose number is the second difference in the operation time in the stable hydrogen production state, and adjust the state of the third target hydrogen production units to a fluctuating hydrogen production state;
and the third state adjusting submodule is also used for exchanging the states of the first target hydrogen production units to be adjusted, which are in the running state and have the running time larger than a preset running time threshold value, with the states of the second target hydrogen production units to be adjusted, which are in the running state and are not in the running state, after the fourth state adjusting submodule adjusts the state of the third target hydrogen production unit to be in the fluctuating hydrogen production state.
13. The operating state control device according to claim 11, characterized by further comprising:
a fifth state adjustment submodule, configured to, when the target number is not greater than the first historical number, screen out fourth target hydrogen production units, the number of which is a first difference, from the hydrogen production system in an order from a large running time to a small running time in a running state, and adjust the state of the fourth target hydrogen production units to a non-running state;
and the second judgment sub-module is further configured to judge whether the first number in the current cycle is greater than a second historical number of hydrogen production units in a stable hydrogen production state in the hydrogen production system in the previous cycle after the fifth state adjustment sub-module adjusts the state of the fourth target hydrogen production unit to the non-operating state.
14. A storage medium characterized by comprising a stored program, wherein a device on which the storage medium is located is controlled to execute an operation state control method according to any one of claims 1 to 9 when the program is executed.
15. An electronic device, comprising: a memory and a processor;
wherein the memory is used for storing programs;
a processor calls a program and is arranged to perform the run state control method according to any of claims 1-9.
CN202111002483.5A 2021-08-30 2021-08-30 Operation state control method of hydrogen production unit and related device Pending CN113644750A (en)

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