Hydrogen metallurgy energy and mass dynamic balance adjusting method and device

Abstract

The invention provides a hydrogen metallurgy energy and mass dynamic balance adjusting method and device. The method comprises the steps that a hydrogen metallurgy shaft furnace mass balance calculation model is constructed based on hydrogen metallurgy productivity planning, and a hydrogen metallurgy shaft furnace heat balance model is constructed based on dynamic characteristics of a hydrogen metallurgy reduction reaction; constructing a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the hydrogen metallurgy shaft furnace mass balance calculation model, the hydrogen metallurgy shaft furnace heat balance model and pre-acquired day-ahead prediction profile data of wind and light generating capacity in the power supply device; performing parameterization adjustment on the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model according to pre-acquired actual measurement data of the hydrogen metallurgy shaft furnace and a pre-constructed carbon emission calculation model; and based on a preset objective function and constraint conditions, solving the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model to obtain a solving result of the adjustable parameters. According to the invention, flexible scheduling and collaborative optimization can be carried out on the hydrogen metallurgy process.

Description

Technical Field

[0001] The invention relates to the field of hydrogen metallurgy and electric power technology, and in particular to a method and device for adjusting the dynamic balance of energy and quality in hydrogen metallurgy. Background Art

[0002] Against the backdrop of the low-carbon transformation of the steel industry and the development of a new power system, the low-carbon transformation of the steel industry mainly considers the use of advanced ironmaking and steelmaking processes, including direct reduction iron (DRI) and electric arc furnace smelting, to reduce energy consumption and emissions.

[0003] The energy system of a hydrogen-based direct reduction (DR) plant consists of multiple elements, including electricity, heat and reducing gas. In order to achieve optimal operating performance, it is critical to consider the operating modes of power generation, energy storage and hydrogen metallurgical processes.

[0004] In the hydrogen metallurgical energy system with new energy as the main power source, how to combine the hydrogen metallurgical process with the new energy system to match the volatility and randomness of the new energy output and improve the flexibility of the hydrogen metallurgical process is a technical problem that needs to be solved urgently. Summary of the invention

[0005] The present invention provides a method and device for adjusting the dynamic balance of hydrogen metallurgical energy and quality, which are used to match the volatility and randomness of the power supply under the condition of hydrogen metallurgical energy and quality balance, and to flexibly schedule and coordinately optimize the hydrogen metallurgical process.

[0006] The present invention provides a method for dynamic balance regulation of hydrogen metallurgical energy quality, which is implemented by a dynamic balance regulation system for hydrogen metallurgical energy quality, wherein the dynamic balance regulation system for hydrogen metallurgical energy quality comprises a vertical furnace, a gas supply and storage device, a power supply device, a hydrogen production device, and a hydrogen storage device; the method comprises: A mass balance calculation model for a hydrogen metallurgical shaft furnace is constructed based on the capacity planning of hydrogen metallurgy, and a heat balance model for a hydrogen metallurgical shaft furnace is constructed based on the kinetic characteristics of the hydrogen metallurgical reduction reaction; Based on the mass balance calculation model of the hydrogen metallurgical shaft furnace, the heat balance model of the hydrogen metallurgical shaft furnace, and the pre-acquired day-ahead forecast profile data of wind and solar power generation in the power supply device, a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is constructed; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device; According to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-built carbon emission calculation model, the total amount of iron balls reduced per hour in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model are parameterized. Based on the preset objective function and constraints, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is solved to obtain the solution results of the adjustable parameters.

[0007] According to the hydrogen metallurgical energy-quality dynamic balance adjustment method provided by the present invention, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model also includes the reducing gas flow rate, furnace inlet temperature, the composition and proportion of each gas on the furnace top, the quality of the pellets entering the furnace and the quality of the pellets leaving the furnace; After building the comprehensive scheduling model of new energy-hydrogen production-hydrogen storage-hydrogen metallurgy, it also includes: According to the pre-acquired measured data of the hydrogen metallurgical vertical furnace and the pre-constructed carbon emission calculation model, the reducing gas flow rate, furnace inlet temperature, the composition and proportion of each gas on the furnace top, the quality of the pellets entering the furnace and the quality of the pellets leaving the furnace in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model are parameterized and adjusted.

[0008] According to the method for dynamic balance regulation of hydrogen metallurgy energy and quality provided by the present invention, the capacity planning of hydrogen metallurgy includes adjustable hydrogen metallurgy output, adjustable energy consumption of hydrogen metallurgy output and reduction gas consumption; The mass balance calculation model is obtained by the following steps: Based on the hydrogen metallurgical energy consumption model, according to the preset hydrogen metallurgical production plan, determining the adjustable hydrogen metallurgical output, the energy consumption of the adjustable hydrogen metallurgical output and the amount of reducing gas, wherein the reducing gas includes hydrogen and carbon monoxide; Based on the adjustable hydrogen metallurgical output, the energy consumption of the adjustable hydrogen metallurgical output and the amount of reducing gas used, a mass balance calculation model for the shaft furnace is constructed.

[0009] According to the method for dynamic balance regulation of hydrogen metallurgical energy and quality provided by the present invention, the mass balance calculation model of the hydrogen metallurgical shaft furnace includes: ; ; ; ; ; ; ; ; in, It indicates the iron content produced in time t, in tons / hour. It represents the weight of iron ore consumed in time t, in tons / hour; It indicates the grade of iron ore, as a percentage; MFe indicates the metallization rate of iron, as a percentage; It represents the weight of FeO in the direct reduced iron produced in time t, in tons / hour; Indicates the grade of iron ore as a percentage; It represents the weight of direct reduced iron produced in time t, in tons / hour; What is the mass ratio of iron oxide? It represents the weight of iron ore consumed in time t, in tons / hour; It indicates the amount of oxygen (O) removed by direct reduced iron when it is reduced from Fe2O3 to FeO and then from FeO to Fe, in tons / hour; It indicates the amount of oxygen (O) removed per ton of Fe produced by direct reduced iron reduction by Fe2O3, in tons / hour; It indicates the amount of oxygen (O) removed during the reduction of direct reduced iron from FeO to produce each ton of Fe, in tons / hour; It represents the mass of Fe2O3 in time period t, in tons / hour; It represents the mass of H2O vaporized in period t, in tons / hour.

[0010] According to the method for dynamic balance regulation of hydrogen metallurgical energy and quality provided by the present invention, the heat balance model of the hydrogen metallurgical shaft furnace includes:

[0011] ; ; ; ; in, It represents the sensible heat of the reducing gas, in J; It represents the sensible heat of solid materials, in J; It represents the heat of direct reduction reaction required for time t, in J; It represents the heat loss of steam at time t, in J; It represents the heat loss of gas at time t, in J; It represents the heat loss of the vertical furnace at time t, in J; represents the volume fraction of H2 in the inlet gas; represents the volume fraction of CO in the inlet gas; It represents the output heat of direct reduced iron at time t, in J; represents the volume fraction of HO2 in natural gas at time t; It represents the sensible heat loss of top gas at time t, in J; represents the mass fraction of the mth substance in direct reduced iron DRI; It represents the molar heat capacity at constant pressure of each component in the gas phase, in units of ; It represents the molar mass of each component of the mth substance in the solid phase; Indicates the reduction temperature of DRI, in K; The thermodynamic equilibrium reducing gas required for time t, in Nm 3 / h; Indicates the overall heating efficiency; represents the mass of oxygen at time t, in tons; Indicates the gas temperature at the top of a hydrogen-based vertical furnace, in K; , , , Represents the specific heat capacity of carbon dioxide, water vapor, carbon monoxide and hydrogen respectively, in units ; It indicates the temperature at the inlet of the reducing gas in the shaft furnace, in K; Indicates the volume fraction of each component in the reducing gas at the inlet; It represents the molar heat capacity at constant pressure of each component in the gas phase at the inlet of the shaft furnace reduction gas, in units of ; η represents the reduction of gas utilization efficiency; Indicates the volume fraction of each component in the furnace top gas; It represents the molar heat capacity of each component of the gas phase at the top of the vertical furnace at constant pressure, in units of .

[0012] According to the hydrogen metallurgical energy-quality dynamic balance adjustment method provided by the present invention, the carbon emission calculation model includes: ; in, represents the total CO2 emissions due to the use of grid electricity and CO as a reducing agent, in tons; α represents the carbon emission factor, in tons CO2 / MWh; represents the power of the power grid at time t; It represents the CO2 emissions caused by using CO as a reducing agent, in tons; Indicates the amount of CO2 emissions reduced by using hydrogen as a reducing agent, in tons; Indicates the consumption of reducing gas at time t, in Nm 3 .

[0013] According to the hydrogen metallurgical energy-quality dynamic balance adjustment method provided by the present invention, the objective function is specifically: ; in, is the energy storage system operating cost, represents the operating cost of wind power generation, represents the operating cost of photovoltaic power generation, Indicates the electricity price, represents the operating cost of the vertical furnace, It represents the CO2 emissions from the energy supply from the grid and CO2 reduction gas, in tons. 、 、 、 、 、 The calculation formulas are:

[0014] ; ; ; ; in, represents the set of indices of the period, where t = 1,2,...,T, Indicates the unit price of energy storage system operation, in ¥ / MWh, represents the discharge power of ESS in time t, represents the charging power of ESS in time t, Indicates the unit price of wind power, in ¥ / MWh ， It represents the wind power generation predicted on the previous day, in kW. Represents the unit price of photovoltaic power generation, in ¥ / MWh, represents the photovoltaic power generation in time t, represents the unit price of energy purchase and sale, It represents the power of the power grid in time t, in units of ¥ / MWh, represents the demand response flexibility resource price, in ¥ / MWh; Represents the flexibility resource load at time t.

[0015] According to the method for dynamic balance adjustment of hydrogen metallurgical energy and quality provided by the present invention, the constraints include energy balance constraints, reducing gas profile measurement constraints, hydrogen production constraints, hydrogen storage and dehydrogenation constraints, electrochemical energy storage constraints, and flexibility adjustment constraints of hydrogen metallurgical vertical furnaces.

[0016] According to the hydrogen metallurgical energy dynamic balance adjustment method provided by the present invention, the energy balance constraint condition is expressed as: ; in, It represents the total power generation at time t, in kW; represents the power provided by the energy storage system at time t, in kWh; It represents the power load at time t, that is, the total power demand that the power grid needs to meet, in kW.

[0017] According to the hydrogen metallurgical energy-quality dynamic balance adjustment method provided by the present invention, the reducing gas profile measurement constraint conditions include: ; in, It represents the hydrogen electrolysis power at time t, in ¥ / MWh; It represents the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; represents the volume fraction of H2 in the inlet gas; Indicates the consumption of reducing gas at time t, in Nm 3 .

[0018] According to the method for dynamic balance regulation of hydrogen metallurgical energy and quality provided by the present invention, the hydrogen production constraint conditions include: ; ; in, and They represent the minimum hydrogen electrolysis power and the maximum hydrogen electrolysis power, respectively, in kWh; Indicates the hydrogen electrolysis power at time t, in kWh; and Indicates the upper and lower limits of the allowable fluctuation of the power of hydrogen production by electrolysis of water within a unit time period. (t+1) represents the hydrogen production power by water electrolysis during the period t+1, in kWh; (t) represents the power of hydrogen production by water electrolysis during period t, in kWh.

[0019] According to the method for dynamic balance regulation of hydrogen metallurgical energy and quality provided by the present invention, the hydrogen storage and dehydrogenation constraint conditions include: ; ; ; in, Indicates the initial hydrogen storage capacity at t=0, in Nm 3 ; Indicates the initial hydrogen storage capacity at t=24, in Nm 3 ; Indicates the hydrogen storage capacity at the initial time t, in Nm 3 ; Respectively represent the minimum hydrogen storage capacity and the maximum hydrogen storage capacity, in Nm 3 ; Indicates the hydrogen storage capacity at time t-1, in Nm 3 ; Indicates the hydrogen production power of water electrolysis at time t, in kWh; Indicates the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; Indicates the consumption of reducing gas at time t, in Nm 3 .

[0020] According to the method for dynamic balance regulation of hydrogen metallurgical energy quality provided by the present invention, the electrochemical energy storage constraint conditions include:

[0021] in, represents the charging power in time t, Represents the discharge power within time t; A binary status indication representing the charging of the energy storage system at time t; A binary state indication representing the discharge of the energy storage system at time t.

[0022] According to the hydrogen metallurgical energy-quality dynamic balance adjustment method provided by the present invention, the flexibility adjustment model constraint conditions of the hydrogen metallurgical shaft furnace include: ; ; in, represents the heat loss during period t; represents the heat consumption of reduction reaction during period t; It represents the heat carried away by direct reduced iron; It represents the heat taken away by water vaporization; represents the power of flexible resources in period t; η represents the utilization rate of reducing gas; It represents the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; represents the hydrogen production power by water electrolysis during period t; represents a 0,1 variable, indicating the adjustable state of the adjustable load; Indicates the minimum power of the adjustable load; Indicates the maximum power of the adjustable load; Indicates the start time when the adjustable load is allowed to be adjusted; t indicates the index of the cycle, and td indicates the length of the adjustable period; Indicates the adjustable state of the adjustable load at time t-1, which is a 0-1 variable.

[0023] The present invention also provides a hydrogen metallurgical energy dynamic balance regulating device, which is arranged in a hydrogen metallurgical energy dynamic balance regulating system, and the hydrogen metallurgical energy dynamic balance regulating system includes a vertical furnace, a gas supply and storage device, a power supply device, a hydrogen production device, and a hydrogen storage device; the device includes: The first construction module is used to construct a hydrogen metallurgical shaft furnace mass balance calculation model based on hydrogen metallurgical capacity planning, and to construct a hydrogen metallurgical shaft furnace heat balance model based on the kinetic characteristics of hydrogen metallurgical reduction reactions; The second construction module is used to construct a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the mass balance calculation model of the hydrogen metallurgical shaft furnace, the heat balance model of the hydrogen metallurgical shaft furnace, and the pre-acquired day-ahead predicted profile data of wind and solar power generation in the power supply device; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device; A parameterized processing module is used to perform parameterized adjustments on the total amount of reduced iron balls per hour in the hydrogen metallurgical shaft furnace, the ratio of hydrogen to carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model according to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-built carbon emission calculation model; The solution module is used to solve the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on preset objective functions and constraints to obtain solution results of adjustable parameters.

[0024] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method for dynamic balance regulation of hydrogen metallurgical energy and quality as described above is implemented.

[0025] The present invention also provides a non-transitory computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the method for adjusting the dynamic balance of hydrogen metallurgical energy and quality as described above is implemented.

[0026] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the method for adjusting the dynamic balance of hydrogen metallurgical energy and quality as described above is implemented.

[0027] The hydrogen metallurgical energy-quality dynamic balance adjustment method and device provided by the present invention construct a hydrogen metallurgical shaft furnace mass balance calculation model and a hydrogen metallurgical shaft furnace heat balance model, and construct a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the hydrogen metallurgical shaft furnace mass balance calculation model, the hydrogen metallurgical shaft furnace heat balance model, a pre-constructed carbon emission calculation model and the day-ahead predicted profile data of wind and solar power generation energy in the hydrogen metallurgical energy system; according to the pre-acquired hydrogen metallurgical shaft furnace measured data, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is parameterized and adjusted, wherein the adjustable parameters include the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of H2 and CO in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation energy in the hydrogen metallurgical energy system; based on the preset objective function and constraint conditions, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is solved to obtain the solution results of each of the adjustable parameters. The present invention has formulated a strategy for adjusting and producing hydrogen metallurgical processes to match the output of new energy. It takes the optimal economic operation as the goal and takes into account the instability of new energy. On the basis of taking into account production capacity, it can effectively reduce carbon emissions, reduce the operating costs of source, grid, load and storage resources, and reduce the operating costs of DRI, thereby improving the economic benefits of each ton of direct reduced iron, while promoting the consumption of local new energy sources, grids, loads and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 It is one of the flow diagrams of the method for dynamic balance adjustment of hydrogen metallurgical energy and quality provided in an embodiment of the present invention.

[0030] Figure 2 This is the second flow chart of the method for dynamic balance adjustment of hydrogen metallurgical energy provided in an embodiment of the present invention.

[0031] Figure 3 It is a hydrogen metallurgical energy quality dynamic model that takes into account metallurgical thermodynamics and thermodynamic balance, provided by an embodiment of the present invention.

[0032] Figure 4 It is a structural schematic diagram of the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model provided in an embodiment of the present invention.

[0033] Figure 5 It is a schematic diagram of the structure of a hydrogen metallurgical energy-quality dynamic balance regulating device provided in an embodiment of the present invention.

[0034] Figure 6 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Before introducing the solutions of the present invention, the terms involved in the present invention are first explained.

[0037] Source, grid, load, and storage: "source" refers to new energy sources such as wind power generation, photovoltaic power generation, and biomass power generation; "grid" refers to the power grid, and the electricity in the power grid usually comes from traditional power sources such as thermal power, hydropower, and nuclear power; "load" refers to the hydrogen metallurgical system. In this application, the hydrogen metallurgical system is used as a flexible load and added to the source, grid, load, and storage system; "storage" refers to energy storage, hydrogen storage, and other equipment.

[0038] Against the backdrop of the low-carbon transformation of the steel industry and the development of a new power system, the low-carbon transformation of the steel industry mainly considers the use of advanced ironmaking and steelmaking processes, including direct reduction iron (DRI) and electric arc furnace smelting, to reduce energy consumption and emissions.

[0039] Carbon-based metallurgy is a representative development model of the steel industry. The basic reaction formula of smelting is Fe2O3+3CO=2Fe+3CO2. Carbon acts as a reducing agent and produces carbon dioxide as a product. The concept of hydrogen metallurgy is based on the concept of carbon metallurgy. The basic reaction formula of hydrogen metallurgy is Fe2O3+3H2=2Fe+3H2O. Hydrogen acts as a reducing agent and the product is water. The emission of carbon dioxide CO2 is zero. The coking and melting steps in the traditional ironmaking and steelmaking process are omitted, which greatly improves energy utilization efficiency and reduces energy consumption.

[0040] At the same time, the source-grid-load-storage coordination mode represented by demand response, electricity and carbon trading market transactions is being gradually promoted. In the hydrogen metallurgical energy system with new energy as the main power source, the hydrogen metallurgical process and the new energy system match the volatility and randomness of the new energy output, and improve the flexibility of the hydrogen metallurgical process. The key technology needs to break through. In the hydrogen metallurgical energy system with new energy as the main power source, the hydrogen metallurgical process and the new energy system are combined to make the hydrogen metallurgical process match the volatility and randomness of the new energy output, as well as the flexibility of the hydrogen metallurgical process. By synergistically optimizing demand response, electricity and carbon trading market transactions, the source-grid-load-storage coordinated operation mode is realized. Therefore, it can be used to improve the economic benefits of hydrogen metallurgy, and at the same time solve the problem of difficulty in absorbing green power due to the rapid development and construction of large-scale source-grid-load-storage bases with supporting energy storage for new energy.

[0041] In view of this, the present invention provides a method for dynamic balance regulation of hydrogen metallurgical energy quality, which is implemented by a hydrogen metallurgical energy quality dynamic balance regulation system, and the hydrogen metallurgical energy quality dynamic balance regulation system includes a vertical furnace, a gas supply and storage device, a power supply device, etc. The method for dynamic balance regulation of hydrogen metallurgical energy quality provided by the present invention is a process of collaborative optimization of the operation modes of the vertical furnace, the gas supply and storage device, and the power supply device in the hydrogen metallurgical energy quality dynamic balance regulation system. Therefore, on this basis, according to the characteristics of the hydrogen metallurgical process, a hydrogen-based metallurgical hourly energy consumption model is established, and a hydrogen metallurgical vertical furnace mass balance calculation model and a hydrogen metallurgical vertical furnace heat balance model are obtained based on the energy consumption model, and the energy system flexibility of the hydrogen metallurgical process is modeled, and further based on the hydrogen metallurgical process regulation and production strategy matching the new energy output, the scheduling strategy and process of the hydrogen metallurgical process matching the new energy fluctuation are implemented to improve production efficiency and enhance the production economic benefits of tons of DRI.

[0042] The technical solutions in the embodiments of the present invention will be described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0043] In some specific embodiments of the present invention, Figure 1 As shown, this scheme provides a method for adjusting the dynamic balance of hydrogen metallurgical energy and quality, comprising the following steps: Step 100: construct a hydrogen metallurgical shaft furnace mass balance calculation model based on hydrogen metallurgical capacity planning, and construct a hydrogen metallurgical shaft furnace heat balance model based on the kinetic characteristics of hydrogen metallurgical reduction reaction; Step 200: construct a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the mass balance calculation model of the hydrogen metallurgical shaft furnace, the heat balance model of the hydrogen metallurgical shaft furnace, and the previously acquired day-ahead predicted profile data of wind and solar power generation in the power supply device; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device; Step 300: According to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-constructed carbon emission calculation model, parameter adjustment is performed on the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model; Step 400: Based on the preset objective function and constraints, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is solved to obtain the solution results of each adjustable parameter.

[0044] It should be noted that the energy system of a hydrogen-based direct reduction (DR) plant consists of multiple elements, including electricity, heat and reducing gas. In order to achieve optimal operating performance, it is critical to consider the operating mode of power generation, energy storage and hydrogen metallurgical processes. The optimal operating mode needs to take into account factors such as uncertainties associated with wind and photovoltaic power generation, the operating mode of hydrogen electrolyzers and hydrogen storage facilities, and the overall heat, electricity and hydrogen requirements of the DR shaft furnace.

[0045] Therefore, from the overall concept of the present invention, the present invention constructs a hydrogen metallurgical shaft furnace mass balance calculation model and a hydrogen metallurgical shaft furnace heat balance model according to the characteristics of the hydrogen metallurgical process and the hourly energy consumption model of hydrogen-based metallurgy, models the energy system flexibility of the hydrogen metallurgical process, and studies the scheduling strategy and process of the hydrogen metallurgical process matching the new energy fluctuation based on the hydrogen metallurgical process adjustment and production strategy of the new energy output, improves production efficiency, and enhances the production economic benefits of tons of DRI.

[0046] Specifically, in some specific embodiments of the present invention, Figure 2 As shown, Figure 2This is the second flow diagram of the method for dynamic balance regulation of hydrogen metallurgical energy provided by an embodiment of the present invention. This scheme discloses a flexible scheduling and coordinated scheduling optimization operation strategy based on hydrogen-based metallurgical reaction reduction energy balance, matching power supply volatility and randomness, belonging to the technical field of iron and steel metallurgical process regulation and power system operation control. Specifically, it may include the following steps: according to the thermal power of hydrogen reduction gas (mainly composed of H2 and CO) and the heat balance requirements of the vertical furnace in the hydrogen metallurgical process, the heating energy demand of the hydrogen metallurgical process and the minimum demand for reducing gas (H2 / CO) are analyzed; according to the output requirements, a hydrogen-based metallurgical hourly energy consumption model is dynamically established to calculate the minimum demand for reducing gas heating and water electrolysis hydrogen production energy requirements, with the goal of optimal economic operation, including reducing carbon emissions, reducing the operating costs of source, grid, load and storage resources, and reducing the operating costs of DRI. The pelletizing fixed-batch metallurgy of the hydrogen metallurgical vertical furnace is used as the control variable, and a strategy for matching the hydrogen metallurgical process regulation and production with new energy output is formulated to improve the economic benefits of tons of DRI, while promoting the consumption of local new energy sources, grids, loads and storage.

[0047] The above steps are described in detail below through specific embodiments.

[0048] Step 100: construct a hydrogen metallurgical shaft furnace mass balance calculation model based on hydrogen metallurgical capacity planning, and construct a hydrogen metallurgical shaft furnace heat balance model based on the kinetic characteristics of hydrogen metallurgical reduction reaction; In this step, the capacity planning of hydrogen metallurgy includes adjustable hydrogen metallurgy output, adjustable hydrogen metallurgy output energy consumption and reducing gas consumption. Therefore, the mass balance calculation model is obtained through the following steps: Based on the hydrogen metallurgical energy consumption model, according to the preset hydrogen metallurgical production plan, determining the adjustable hydrogen metallurgical output, the energy consumption of the adjustable hydrogen metallurgical output and the amount of reducing gas, wherein the reducing gas includes hydrogen and carbon monoxide; Based on the adjustable hydrogen metallurgical output, the energy consumption of the adjustable hydrogen metallurgical output and the amount of reducing gas used, a mass balance calculation model for the shaft furnace is constructed.

[0049] Specifically, in a possible embodiment, Figure 3 The hydrogen metallurgical energy dynamic model considering metallurgical thermodynamics and thermodynamic balance provided by the embodiment of the present invention is as follows: Figure 3 As shown, this embodiment, based on the hydrogen metallurgical energy consumption model and according to the hydrogen metallurgical process characteristics, establishes a hydrogen-based metallurgical hourly energy consumption model energy quality model, takes into account metallurgical thermodynamics and thermodynamic balance, as well as the kinetic characteristics of hydrogen metallurgical reduction reactions, models the vertical furnace operation mode, constructs a mass balance calculation model for the hydrogen metallurgical vertical furnace and a hydrogen metallurgical vertical furnace heat balance model, and models the energy system flexibility of the hydrogen metallurgical process.

[0050] Specifically, the mass balance calculation model of the hydrogen metallurgical shaft furnace is constructed as follows: (1); (2); (3); (4); (5); (6); (7); (8); in, It indicates the iron content produced in time t, in tons / hour. It represents the weight of iron ore consumed in time t, in tons / hour; It indicates the grade of iron ore, as a percentage; MFe indicates the metallization rate of iron, as a percentage; It represents the weight of FeO in the direct reduced iron produced in time t, in tons / hour; Indicates the grade of iron ore as a percentage; It represents the weight of direct reduced iron produced in time t, in tons / hour; What is the mass ratio of iron oxide? It represents the weight of iron ore consumed in time t, in tons / hour; It indicates the amount of oxygen (O) removed by direct reduced iron when it is reduced from Fe2O3 to FeO and then from FeO to Fe, in tons / hour; It indicates the amount of oxygen (O) removed per ton of Fe produced by direct reduced iron reduction by Fe2O3, in tons / hour; It indicates the amount of oxygen (O) removed during the reduction of direct reduced iron from FeO to produce each ton of Fe, in tons / hour; It represents the mass of Fe2O3 in time period t, in tons / hour; It represents the mass of H2O vaporized in period t, in tons / hour.

[0051] A heat balance model of a hydrogen metallurgical shaft furnace considering the kinetic characteristics of the reduction reaction is constructed as follows: (9); (10); (11); (12); in, It represents the sensible heat of the reducing gas, in J; It represents the sensible heat of solid materials, in J; It represents the heat of direct reduction reaction required for time t, in J; It represents the output heat of direct reduced iron at time t, in J; It represents the heat loss of steam at time t, in J; It represents the heat loss of gas at time t, in J; It represents the heat loss of the vertical furnace at time t, in J; represents the volume fraction of H2 in the inlet gas; represents the volume fraction of CO in the inlet gas; represents the volume fraction of HO2 in natural gas at time t; It represents the sensible heat loss of top gas at time t, in J; represents the mass fraction of the mth substance in direct reduced iron DRI; It represents the molar heat capacity at constant pressure of each component in the gas phase, in units of ; It represents the molar mass of each component of the mth substance in the solid phase; Indicates the reduction temperature of DRI, in K.

[0052] Specifically, It can be used to simplify the calorific value and enthalpy of metallurgical thermodynamic balance. The calculation can be made with reference to the typical parameters of the iron oxide reduction reaction. In the above heat balance model, the gasified H2O from the iron ore is not considered as part of the reducing gas. The total heating demand is calculated in equation (9). The left part sums the heat demand of each component in the imported reducing gas, as well as the heating demand of each component in the iron ore. The right part adds the heat removed by DRI, H2O gasification, top gas and heat loss from the vertical furnace. The gas composition and the constant pressure molar heat capacity of the iron ore can be found in the preset correspondence table. Solving the above equation) and using the DR process parameters in the preset correspondence table, the time-varying reducing gas demand that meets thermodynamic equilibrium can be obtained (the total volume of H2 and CO required to reduce 1 ton of ferric oxide ore under given conditions). The following minimum gas demand is derived by the formula: (13); in, The thermodynamic equilibrium reducing gas required for time t, in Nm 3 / h; Indicates the overall heating efficiency; represents the mass of oxygen at time t, in tons; Indicates the gas temperature at the top of a hydrogen-based vertical furnace, in K; , , , Represents the specific heat capacity of carbon dioxide, water vapor, carbon monoxide and hydrogen respectively, in units ; It indicates the temperature at the inlet of the reducing gas in the shaft furnace, in K; Indicates the volume fraction of each component in the reducing gas at the inlet; It represents the molar heat capacity at constant pressure of each component in the gas phase at the inlet of the shaft furnace reduction gas, in units of ; η represents the reduction of gas utilization efficiency; Indicates the volume fraction of each component in the furnace top gas; It represents the molar heat capacity of each component of the gas phase at the top of the vertical furnace at constant pressure, in units of .

[0053] It should be noted that the temperature in the vertical furnace gradually rises from the top to the bottom, as the temperature of the ore gradually increases. The reduction process follows the reduction path After the reducing gas enters the vertical furnace, the third stage is the first reduction. The reduction tail gas of the third stage is the reducing gas of the second stage, and the tail gas of the second stage is the reducing gas of the first stage. In these three consecutive reduction stages, the key steps are theoretically in balance with the reducing gas. In the process of reducing FeO at a temperature exceeding 650°C, the overall utilization efficiency of the mixed gas is mainly affected by the reduction gas utilization rate of the FeO stage. The other steps are in a state of excess reducing gas. The minimum reducing gas demand is determined by the actual gas demand of the key steps. The H2 / CO reducing gas composition has a significant effect on the reduction rate. In a specific embodiment, reduction experiments using H2 and CO show that between 900°C and 1100°C, the combination of H2 / CO can achieve a reduction rate of 90% within 30 minutes.

[0054] Step 200: construct a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the mass balance calculation model of the hydrogen metallurgical shaft furnace, the heat balance model of the hydrogen metallurgical shaft furnace, and the previously acquired day-ahead predicted profile data of wind and solar power generation in the power supply device; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device; It should be noted that, facing the development of low-carbon metallurgy and new power systems in the future, the energy structure and characteristics of hydrogen energy metallurgical bases based on wind, light, grid, and storage, including the energy processing and conversion process inside the metallurgical plant and the corresponding carbon emission mechanism, will undergo tremendous changes, tending to be green, clean, and flexible. Energy demand will shift to green electricity and green hydrogen, etc., which are mainly based on renewable energy. Based on hydrogen metallurgical scheduling, the energy structure and characteristics of hydrogen energy metallurgical bases, including the internal energy processing and conversion process and carbon emission mechanism, will undergo tremendous changes, gradually moving towards green, clean and flexible directions. Future energy demand will rely more on renewable energy, such as green electricity and green hydrogen. In the process of building a new energy system in metallurgical plants, metallurgical plants are regarded as consumer-side units with high energy intensity. By improving the flexibility of internal production links and the flexible and efficient conversion of multi-source energy, it will be able to effectively coordinate and respond to the challenges of large-scale wind and solar energy consumption with volatility and randomness. The integrated and systematic combination of metallurgical plants with source, grid, and storage will become an important technical path to promote the development of green and low-carbon metallurgical technology.

[0055] Therefore, in the construction of a new energy system for metallurgical plants, as a consumer-side unit with high energy intensity, metallurgical plants can form synergistic advantages in the consumption of large-scale wind and solar power with volatility and randomness by improving the flexibility of internal production links and flexible and efficient conversion of multi-source energy. The systematic combination of metallurgy and source-grid-load-storage integration can become an important technical path for the development of green and low-carbon metallurgical technology.

[0056] This application establishes a matching optimization operation model for hydrogen metallurgical optimization operation based on the hydrogen metallurgical energy quality dynamic model, combines the new energy day-ahead forecast data for new energy, formulates a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model, and integrates the hydrogen metallurgical shaft furnace mass balance calculation model and the hydrogen metallurgical shaft furnace heat balance model as hydrogen metallurgical load sub-models into the "source-grid-load-storage" framework, wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device.

[0057] In a possible embodiment, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy integrated scheduling model also includes reducing gas flow, furnace inlet temperature, composition and proportion of various gases on the furnace top, quality of pellets entering the furnace and quality of pellets leaving the furnace.

[0058] Specifically, see Figure 2According to the thermal power of hydrogen reduction gas (mainly H2 and CO) in hydrogen metallurgical process and the heat balance demand of vertical furnace, the heating energy demand of hydrogen metallurgical process and the minimum demand of reducing gas (H2 / CO) are analyzed. According to the output demand, the hourly energy consumption model of hydrogen-based metallurgy is dynamically established to calculate the minimum energy demand for reducing gas heating and hydrogen production by electrolysis of water. The goal is to optimize economic operation, including reducing carbon emissions, reducing the operating cost of source, grid, load and storage resources, and reducing the operating cost of DRI. Taking the pelletizing metallurgy of hydrogen metallurgical vertical furnace as the control variable, a strategy for hydrogen metallurgical process adjustment and production matching new energy output has been formulated to improve the economic benefits of tons of DRI and promote the consumption of local new energy sources, grids, loads and storage.

[0059] That is to say, the hourly energy consumption model of hydrogen-based metallurgy in the above embodiment can be regarded as a hydrogen metallurgical load sub-model, which is integrated into the "source-grid-load-storage" framework to construct a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model.

[0060] Step 300: According to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-constructed carbon emission calculation model, parameter adjustment is performed on the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model; In this step, a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy integrated scheduling model is formulated, the hydrogen metallurgical load sub-model is integrated into the "source-grid-load-storage" framework, and the parameters are adjusted in combination with the measured data of the hydrogen metallurgical shaft furnace. The adjustable parameters include the total amount of iron balls reduced per hour in the hydrogen metallurgical shaft furnace. By adjusting the shaft furnace output, the overall energy quality demand and corresponding energy consumption can be adjusted. It can also include the reducing gas flow rate, furnace inlet temperature, furnace top gas composition, furnace inlet pellet quality, and furnace outlet pellet quality.

[0061] Specifically, the measured data of the hydrogen metallurgical vertical furnace can be obtained in advance, and the carbon emission calculation model can be constructed in advance, and the total hourly amount of reduced iron balls in the hydrogen metallurgical vertical furnace in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the vertical furnace, and the output of wind and solar power generation in the power supply device can be parameterized and adjusted; at the same time, the reducing gas flow rate, the furnace inlet temperature, the composition and ratio of each gas on the furnace top, the quality of the pellets entering the furnace and the quality of the pellets leaving the furnace can also be parameterized and adjusted at the same time.

[0062] It is worth noting that the adjustable parameters set in the embodiment of the present invention are only an implementation method. In actual applications, the adjustable parameters can be set according to specific needs, and may include parameters of any adjustable module in the vertical furnace, power supply device, gas supply and storage device, and new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model.

[0063] In some specific embodiments of the present invention, Figure 4 As shown, Figure 4 It is a structural schematic diagram of the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model provided by an embodiment of the present invention. This scheme introduces the flexibility adjustment in the hydrogen metallurgical direct reduction process into the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model. Specifically, the vertical furnace can improve the energy efficiency and carbon emission level of hydrogen metallurgy by adjusting the H2 / CO reducing gas and the production capacity (hourly level) of the vertical furnace.

[0064] Specifically, the DR process involves continuous reduction reactions. From the perspective of carbon emission calculation, according to the equilibrium law, carbon emissions can be expressed as: (14); (15); (16); in, represents the total CO2 emissions due to the use of grid electricity and CO as a reducing agent, in tons; α represents the carbon emission factor, in tons CO2 / MWh; represents the power of the power grid at time t; It represents the CO2 emissions caused by using CO as a reducing agent, in tons; Indicates the amount of CO2 emissions reduced by using hydrogen as a reducing agent, in tons; Indicates the consumption of reducing gas at time t, in Nm 3 .

[0065] The types of new energy involved in this model may include new energy sources such as wind power generation, photovoltaic power generation, biomass power generation, and traditional power sources such as thermal power, hydropower, nuclear power, etc. In the embodiment of the present invention, only wind power generation and photovoltaic power generation are modeled at the source end, and the energy supply of other power sources is input into the model in the form of grid electricity.

[0066] Step 400: Based on the preset objective function and constraints, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is solved to obtain the solution results of each adjustable parameter.

[0067] Specifically, see Figure 4 , Figure 4The integrated dispatch model of new energy-hydrogen production-hydrogen storage-hydrogen metallurgy can be regarded as an economic dispatch model, which integrates the goals of minimizing CO2 emissions and maximizing the use of renewable energy from local photovoltaic and wind power generation into the economic dispatch model of the hydrogen metallurgical H2-DR plant. The flexibility of the DR plant is modeled as a flexible load that needs to run continuously for multiple hours (td). If the DR plant is connected to the grid via a 10 kV bus, the renewable energy system includes an electrolyzer, a hydrogen storage system, and an energy storage system. The renewable energy system provides a 24-hour dispatchable window with a unit dispatchable interval of 1 hour.

[0068] On this basis, the objective function is set as follows: (17),

[0069] in, is the energy storage system operating cost, represents the operating cost of wind power generation, represents the operating cost of photovoltaic power generation, Indicates the electricity price, represents the operating cost of the vertical furnace, It represents the CO2 emissions from the energy supply from the grid and CO2 reduction gas, in tons. 、 、 、 、 、 The calculation formulas are: (18); (19); (20); (twenty one); (twenty two); in, represents the set of indices of the period, where t = 1,2,...,T, Indicates the unit price of energy storage system operation, in ¥ / MWh, represents the discharge power of ESS in time t, represents the charging power of ESS in time t, Indicates the unit price of wind power, in ¥ / MWh ， It represents the wind power generation predicted on the previous day, in kW. Represents the unit price of photovoltaic power generation, in ¥ / MWh, represents the photovoltaic power generation in time t, represents the unit price of energy purchase and sale, It represents the power of the power grid in time t, in units of ¥ / MWh, represents the demand response flexibility resource price, in ¥ / MWh; Represents the flexibility resource load at time t.

[0070] In some possible embodiments of the present invention, the constraints of hydrogen metallurgy include energy balance constraints, reducing gas profile measurement constraints, hydrogen production constraints, hydrogen storage and dehydrogenation constraints, electrochemical energy storage constraints, and flexibility adjustment constraints of hydrogen metallurgical vertical furnaces.

[0071] In a possible embodiment, the energy balance constraint is expressed as: (twenty three),

[0072] in, It represents the total power generation at time t, in kW; represents the power provided by the energy storage system at time t, in kWh; It represents the power load at time t, that is, the total power demand that the power grid needs to meet, in kW.

[0073] In a possible embodiment, the energy requirement for hydrogen production by electrolysis of water is determined according to the ratio of hydrogen to carbon monoxide and the demand for hydrogen consumption. H2 can be used together with CO as a reducing gas. The vertical furnace can achieve optimal operation with an H2 / CO ratio in the range of 1:1 to X:1. The constraints for reducing gas profile determination include: (twenty four),

[0074] in, It represents the hydrogen electrolysis power at time t, in ¥ / MWh; It represents the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; represents the volume fraction of H2 in the inlet gas; Indicates the consumption of reducing gas at time t, in Nm 3 .

[0075] In a possible embodiment, the hydrogen production constraints include: (25); (26); in, and They represent the minimum hydrogen electrolysis power and the maximum hydrogen electrolysis power, respectively, in kWh; Indicates the hydrogen electrolysis power at time t, in kWh; and Indicates the upper and lower limits of the allowable fluctuation of the power of hydrogen production by electrolysis of water within a unit time period. (t+1) represents the hydrogen production power by water electrolysis during the period t+1, in kWh; (t) represents the power of hydrogen production by water electrolysis during period t, in kWh.

[0076] Wherein formula (25) limits the minimum and maximum operating power of the electrolyzer. The maximum and minimum daily consumption of reducing gas is determined by the maximum and minimum production plan of the DR process. Formula (26) limits the rate of change of electrolyzer power to ensure safe production.

[0077] The constraints of hydrogen storage and dehydrogenation include: (27); (28); (29); in, Indicates the initial hydrogen storage capacity at t=0, in Nm 3 ; Indicates the initial hydrogen storage capacity at t=24, in Nm 3 ; Indicates the hydrogen storage capacity at the initial time t, in Nm 3 ; Respectively represent the minimum hydrogen storage capacity and the maximum hydrogen storage capacity, in Nm 3 ; Indicates the hydrogen storage capacity at time t-1, in Nm 3 ; Indicates the hydrogen production power of water electrolysis at time t, in kWh; Indicates the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; Indicates the consumption of reducing gas at time t, in Nm 3 .

[0078] In a possible embodiment, the electrochemical energy storage constraints include: (30); (31); (32); (33); (34); (35); in, represents the charging power in time t, Represents the discharge power within time t; A binary status indication representing the charging of the energy storage system at time t; A binary state indication representing the discharge of the energy storage system at time t.

[0079] In a possible embodiment, a flexible heat supply and corresponding flexible electricity supply are used for the reduction reaction of Δwt ore, and the flexibility regulation model constraints of the hydrogen metallurgical shaft furnace include: (36); (37); (38); (39); Among them, △ Indicates the heat loss during period t; Indicates the heat consumption of reduction reaction during time period t; △ Indicates the heat taken away by direct reduced iron; △ It represents the heat taken away by water vaporization; represents the power of flexible resources in period t; η represents the utilization rate of reducing gas; Indicates the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; △ represents the hydrogen production power by water electrolysis during period t; represents a 0,1 variable, indicating the adjustable state of the adjustable load; Indicates the minimum power of the adjustable load; Indicates the maximum power of the adjustable load; Indicates the start time when the adjustable load is allowed to be adjusted; t indicates the index of the cycle, and td indicates the length of the adjustable period; Indicates the adjustable state of the adjustable load at time t-1, which is a 0-1 variable.

[0080] It is worth noting that the above constraints include constraints on vertical furnaces, such as flexibility adjustment constraints on hydrogen metallurgical vertical furnaces, constraints on gas supply and storage devices, such as reduction gas profile measurement constraints, hydrogen production constraints, hydrogen storage and dehydrogenation constraints, etc., and constraints on the entire model, such as energy balance constraints, electrochemical energy storage constraints, etc. Under the above constraints, the objective function is solved to obtain the final value results of the adjustable parameters, that is, the optimization results of the parameters in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model. By adjusting the total hourly amount of reduced iron balls in the hydrogen metallurgical vertical furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the vertical furnace, the output of wind and solar power generation in the power supply device, etc., a flexible scheduling and coordinated scheduling optimization operation strategy that matches the volatility and randomness of the power supply based on the energy and quality balance of hydrogen-based metallurgical reaction reduction is obtained.

[0081] The present invention determines the heating energy demand of the hydrogen metallurgical process and the minimum demand for reducing gas (H2 and CO) according to the thermal power of the hydrogen reducing gas (mainly composed of H2 and CO) in the hydrogen metallurgical process and the heat balance demand of the vertical furnace. According to the output demand, a hydrogen-based metallurgical hourly energy consumption model is dynamically established to calculate the minimum energy demand for reducing gas heating and hydrogen production by electrolysis of water. With the goal of optimizing economic operation, reducing carbon emissions, reducing the operating costs of source, grid, load and storage resources, and reducing the operating costs of DRI, the pelletizing fixed-batch metallurgy of the hydrogen metallurgical vertical furnace is used as the control variable. A strategy for hydrogen metallurgical process regulation and production that matches the output of new energy has been formulated to improve the economic benefits of tons of DRI and promote the absorption of local new energy sources, grids, loads and storage.

[0082] The present invention is also applicable to the situation where a large area of ​​the distribution network is out of power due to a transmission network failure. According to the economic calculation of demand response, based on the predicted level of wind and solar power, the vertical furnace operation boundary conditions (including the minimum demand for reducing gas, the temperature of reducing gas entering and leaving the furnace, the temperature of pellets entering and leaving the furnace), the cost of carbon emissions and other major factors, the thermodynamic constraints, mass balance and energy consumption factors such as the H2 / CO ratio and the temperature of the inlet and outlet reducing gas are comprehensively considered to determine and analyze the flexibility in the direct reduced iron production process. Based on this flexibility, a flexibility model is established to provide a theoretical basis for the operation of renewable energy-hydrogen production by water electrolysis-hydrogen metallurgy. On this basis, a scheduling model is further proposed, which takes into account hydrogen production and storage, reducing gas heating and heat balance of reduction reaction in the vertical furnace. By taking economic operation and carbon emission reduction as the goals, a scheduling optimization algorithm for source-grid-load-storage coordinated hydrogen metallurgy is developed, realizing the systematic integration of source-grid-load-storage and hydrogen metallurgy DRI production dominated by renewable energy. By establishing a scenario for the operation of hydrogen production-storage green hydrogen direct reduction ironmaking (RES-H2-DR) based on new energy, and building a comprehensive multi-energy system model, the foundation is laid for the hydrogen metallurgical DRI plant to actively participate in demand response programs and participate in the dispatch of power grids or microgrids as flexible loads. The embodiment of the present invention provides an example of analyzing the multi-energy system of a hydrogen metallurgical plant based on hydrogen, and demonstrates the feasibility and effectiveness of incorporating multiple energy sources, energy storage options and predictive analysis into industrial process optimization.

[0083] The hydrogen metallurgical energy dynamic balance regulating device provided by the present invention is described below. The hydrogen metallurgical energy dynamic balance regulating device described below and the hydrogen metallurgical energy dynamic balance regulating method described above can be referred to each other.

[0084] Figure 5 Schematic diagram of the structure of the hydrogen metallurgical energy dynamic balance regulating device provided by the embodiment of the present invention, such as Figure 5 As shown, the device is arranged in a hydrogen metallurgical energy-quality dynamic balance regulation system, the system comprising a vertical furnace, a plurality of heaters, a natural gas processing device, a compressor, a hydrogen production and storage device, a heat recovery device and a power input device; the device comprises: The first construction module 510 is used to construct a hydrogen metallurgical shaft furnace mass balance calculation model based on the hydrogen metallurgical capacity planning, and to construct a hydrogen metallurgical shaft furnace heat balance model based on the kinetic characteristics of the hydrogen metallurgical reduction reaction; The second construction module 520 is used to construct a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the mass balance calculation model of the hydrogen metallurgical shaft furnace, the heat balance model of the hydrogen metallurgical shaft furnace, and the pre-acquired day-ahead predicted profile data of wind and solar power generation in the power supply device; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device; The parameterization processing module 530 is used to perform parameterized adjustment on the total amount of reduced iron balls per hour in the hydrogen metallurgical shaft furnace, the ratio of hydrogen to carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model according to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-constructed carbon emission calculation model; The solution module 540 is used to solve the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on preset objective functions and constraints to obtain solution results of adjustable parameters.

[0085] The implementation principle and beneficial effects of the hydrogen metallurgical energy dynamic balance adjustment device provided in the embodiment of the present invention are similar to the implementation principle and beneficial effects of the hydrogen metallurgical energy dynamic balance adjustment method shown in the above embodiment. Please refer to the implementation principle and beneficial effects of the hydrogen metallurgical energy dynamic balance adjustment method shown in the above embodiment, and no further details will be given here.

[0086] Figure 6 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 6As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the hydrogen metallurgical energy-quality dynamic balance adjustment method, the method comprising: constructing a hydrogen metallurgical shaft furnace mass balance calculation model based on the hydrogen metallurgical capacity planning, and constructing a hydrogen metallurgical shaft furnace heat balance model based on the kinetic characteristics of the hydrogen metallurgical reduction reaction; constructing a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the hydrogen metallurgical shaft furnace mass balance calculation model, the hydrogen metallurgical shaft furnace heat balance model, and the pre-acquired wind and solar power generation forecast profile data in the power supply device; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total reduction of iron balls in the hydrogen metallurgical shaft furnace The method comprises the following steps: adjusting the total hourly amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device according to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-constructed carbon emission calculation model; and performing parameterized adjustment on the total hourly amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the preset objective function and constraints, and obtaining the solution results of the adjustable parameters.

[0087] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0088] On the other hand, the present invention also provides a computer program product, which includes a computer program, which can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the hydrogen metallurgical energy-quality dynamic balance adjustment method provided by the above methods, the method comprising: constructing a hydrogen metallurgical shaft furnace mass balance calculation model based on the hydrogen metallurgical production capacity planning, and constructing a hydrogen metallurgical shaft furnace heat balance model based on the kinetic characteristics of the hydrogen metallurgical reduction reaction; constructing a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the hydrogen metallurgical shaft furnace mass balance calculation model, the hydrogen metallurgical shaft furnace heat balance model, and the pre-acquired wind and solar power generation forecast profile data in the power supply device; wherein, the new energy The source-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical vertical furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the vertical furnace, and the output of wind and solar power generation in the power supply device; according to the pre-acquired measured data of the hydrogen metallurgical vertical furnace and the pre-constructed carbon emission calculation model, the hourly total amount of reduced iron balls in the hydrogen metallurgical vertical furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the vertical furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model are parameterized and adjusted; based on the preset objective function and constraints, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is solved to obtain the solution results of the adjustable parameters.

[0089] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, is implemented to execute the hydrogen metallurgical energy-quality dynamic balance adjustment method provided by the above-mentioned methods, the method comprising: constructing a hydrogen metallurgical shaft furnace mass balance calculation model based on the hydrogen metallurgical production capacity planning, and constructing a hydrogen metallurgical shaft furnace heat balance model based on the kinetic characteristics of the hydrogen metallurgical reduction reaction; constructing a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the hydrogen metallurgical shaft furnace mass balance calculation model, the hydrogen metallurgical shaft furnace heat balance model, and the pre-acquired wind and solar power generation forecast profile data in the power supply device; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model The speed model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device; according to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-constructed carbon emission calculation model, the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model are parameterized and adjusted; based on the preset objective function and constraints, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is solved to obtain the solution results of the adjustable parameters.

[0090] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0091] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for regulating the dynamic balance of hydrogen metallurgical energy, characterized in that: The method is implemented by a hydrogen metallurgical energy dynamic balance regulation system, which includes a vertical furnace, a gas supply and storage device, a power supply device, a hydrogen production device, and a hydrogen storage device; the method includes: A mass balance calculation model for a hydrogen metallurgical shaft furnace is constructed based on the capacity planning of hydrogen metallurgy, and a heat balance model for a hydrogen metallurgical shaft furnace is constructed based on the kinetic characteristics of the hydrogen metallurgical reduction reaction; Based on the mass balance calculation model of the hydrogen metallurgical shaft furnace, the heat balance model of the hydrogen metallurgical shaft furnace, and the pre-acquired day-ahead forecast profile data of wind and solar power generation in the power supply device, a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is constructed; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device; According to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-built carbon emission calculation model, the total amount of iron balls reduced per hour in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model are parameterized. Based on the preset objective function and constraints, the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model is solved to obtain the solution results of the adjustable parameters.

2. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 1, characterized in that: The new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model also includes reducing gas flow, furnace inlet temperature, composition and proportion of various gases on the furnace top, quality of pellets entering the furnace and quality of pellets leaving the furnace; After building the comprehensive scheduling model of new energy-hydrogen production-hydrogen storage-hydrogen metallurgy, it also includes: According to the pre-acquired measured data of the hydrogen metallurgical vertical furnace and the pre-constructed carbon emission calculation model, the reducing gas flow rate, furnace inlet temperature, the composition and proportion of each gas on the furnace top, the quality of the pellets entering the furnace and the quality of the pellets leaving the furnace in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model are parameterized and adjusted.

3. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 2, characterized in that: The hydrogen metallurgical capacity planning includes adjustable hydrogen metallurgical output, adjustable hydrogen metallurgical output energy consumption and reducing gas consumption; The mass balance calculation model is obtained by the following steps: Based on the hydrogen metallurgical energy consumption model, according to the preset hydrogen metallurgical production plan, determining the adjustable hydrogen metallurgical output, the energy consumption of the adjustable hydrogen metallurgical output and the amount of reducing gas, wherein the reducing gas includes hydrogen and carbon monoxide; Based on the adjustable hydrogen metallurgical output, the energy consumption of the adjustable hydrogen metallurgical output and the amount of reducing gas used, a mass balance calculation model for the shaft furnace is constructed.

4. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 3, characterized in that: The mass balance calculation model of the hydrogen metallurgical shaft furnace includes: ； ； ； ； ； ； ； ； in, It indicates the iron content produced in time t, in tons / hour. It represents the weight of iron ore consumed in time t, in tons / hour; It indicates the grade of iron ore, as a percentage; MFe indicates the metallization rate of iron, as a percentage; It represents the weight of FeO in the direct reduced iron produced in time t, in tons / hour; Indicates the grade of iron ore as a percentage; It represents the weight of direct reduced iron produced in time t, in tons / hour; What is the mass ratio of iron oxide? It represents the weight of iron ore consumed in time t, in tons / hour; It indicates the amount of oxygen (O) removed by direct reduced iron when it is reduced from Fe2O3 to FeO and then from FeO to Fe, in tons / hour; It indicates the amount of oxygen (O) removed per ton of Fe produced by direct reduced iron reduction by Fe2O3, in tons / hour; It indicates the amount of oxygen (O) removed during the reduction of direct reduced iron from FeO to produce each ton of Fe, in tons / hour; It represents the mass of Fe2O3 in time period t, in tons / hour; It represents the mass of H2O vaporized in period t, in tons / hour.

5. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 4, characterized in that: The heat balance model of the hydrogen metallurgical shaft furnace includes: ； ； ； ； in, It represents the sensible heat of the reducing gas, in J; It represents the sensible heat of solid materials, in J; It represents the heat of direct reduction reaction required for time t, in J; It represents the heat loss of steam at time t, in J; It represents the heat loss of gas at time t, in J; It represents the heat loss of the vertical furnace at time t, in J; represents the volume fraction of H2 in the inlet gas; represents the volume fraction of CO in the inlet gas; It represents the output heat of direct reduced iron at time t, in J; represents the volume fraction of HO2 in natural gas at time t; It represents the sensible heat loss of top gas at time t, in J; represents the mass fraction of the mth substance in direct reduced iron DRI; It represents the molar heat capacity at constant pressure of each component in the gas phase, in units of ; It represents the molar mass of each component of the mth substance in the solid phase; Indicates the reduction temperature of DRI, in K; The thermodynamic equilibrium reducing gas required for time t, in Nm 3 / h; Indicates the overall heating efficiency; represents the mass of oxygen at time t, in tons; Indicates the gas temperature at the top of a hydrogen-based vertical furnace, in K; , , , Represents the specific heat capacity of carbon dioxide, water vapor, carbon monoxide and hydrogen respectively, in units ; It indicates the temperature at the inlet of the reducing gas in the shaft furnace, in K; Indicates the volume fraction of each component in the reducing gas at the inlet; It represents the molar heat capacity at constant pressure of each component in the gas phase at the inlet of the shaft furnace reduction gas, in units of ; η represents the reduction of gas utilization efficiency; Indicates the volume fraction of each component in the furnace top gas; It represents the molar heat capacity of each component of the gas phase at the top of the vertical furnace at constant pressure, in units of .

6. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 5, characterized in that: The carbon emission calculation model includes: ； in, represents the total CO2 emissions due to the use of grid electricity and CO as a reducing agent, in tons; α represents the carbon emission factor, in tons CO2 / MWh; represents the power of the power grid at time t; It represents the CO2 emissions caused by using CO as a reducing agent, in tons; Indicates the amount of CO2 emissions reduced by using hydrogen as a reducing agent, in tons; Indicates the consumption of reducing gas at time t, in Nm 3 .

7. The method for regulating the dynamic balance of hydrogen metallurgical energy according to claim 6, characterized in that: The objective function is specifically: ； in, is the energy storage system operating cost, represents the operating cost of wind power generation, represents the operating cost of photovoltaic power generation, Indicates the electricity price, represents the operating cost of the vertical furnace, It represents the CO2 emissions from the energy supply from the grid and CO2 reduction gas, in tons. 、 、 、 、 、 The calculation formulas are: ； ； ； ； in, represents the set of indices of the period, where t = 1,2,...,T, Indicates the unit price of energy storage system operation, in ¥ / MWh, represents the discharge power of ESS in time t, represents the charging power of ESS in time t, Indicates the unit price of wind power, in ¥ / MWh ， It represents the wind power generation predicted on the previous day, in kW. Represents the unit price of photovoltaic power generation, in ¥ / MWh, represents the photovoltaic power generation in time t, represents the unit price of energy purchase and sale, It represents the power of the power grid in time t, in units of ¥ / MWh, represents the demand response flexibility resource price, in ¥ / MWh; Represents the flexibility resource load at time t.

8. The method for dynamic balance regulation of hydrogen metallurgical energy according to claim 7, characterized in that: The constraints include energy balance constraints, reduction gas profile measurement constraints, hydrogen production constraints, hydrogen storage and dehydrogenation constraints, electrochemical energy storage constraints, and flexibility adjustment constraints for hydrogen metallurgical shaft furnaces.

9. The method for regulating the dynamic balance of hydrogen metallurgical energy and quality according to claim 8, characterized in that: The energy balance constraint is expressed as: ; in, It represents the total power generation at time t, in kW; represents the power provided by the energy storage system at time t, in kWh; It represents the power load at time t, that is, the total power demand that the power grid needs to meet, in kW.

10. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 8, characterized in that: The reducing gas profile measurement constraints include: ； in, It represents the hydrogen electrolysis power at time t, in ¥ / MWh; It represents the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; represents the volume fraction of H2 in the inlet gas; Indicates the consumption of reducing gas at time t, in Nm 3 .

11. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 8, characterized in that: The hydrogen production constraints include: ； ； in, and They represent the minimum hydrogen electrolysis power and the maximum hydrogen electrolysis power, respectively, in kWh; Indicates the hydrogen electrolysis power at time t, in kWh; and Indicates the upper and lower limits of the allowable fluctuation of the power of hydrogen production by electrolysis of water within a unit time period. (t+1) represents the hydrogen production power by water electrolysis during the period t+1, in kWh; (t) represents the power of hydrogen production by water electrolysis during period t, in kWh.

12. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 8, characterized in that: The hydrogen storage and dehydrogenation constraints include: ； ； ； in, Indicates the initial hydrogen storage capacity at t=0, in Nm 3 ; Indicates the initial hydrogen storage capacity at t=24, in Nm 3 ; Indicates the hydrogen storage capacity at the initial time t, in Nm 3 ; Respectively represent the minimum hydrogen storage capacity and the maximum hydrogen storage capacity, in Nm 3 ; Indicates the hydrogen storage capacity at time t-1, in Nm 3 ; Indicates the hydrogen production power of water electrolysis at time t, in kWh; Indicates the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; Indicates the consumption of reducing gas at time t, in Nm 3 .

13. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 8, characterized in that: The electrochemical energy storage constraints include: in, represents the charging power in time t, Represents the discharge power within time t; A binary status indication representing the charging of the energy storage system at time t; A binary state indication representing the discharge of the energy storage system at time t.

14. The method for dynamic balance adjustment of hydrogen metallurgical energy quality according to claim 8, characterized in that: The constraints of the flexibility adjustment model of the hydrogen metallurgical shaft furnace include: ； ； in, represents the heat loss during period t; represents the heat consumption of reduction reaction during period t; It represents the heat carried away by direct reduced iron; It represents the heat taken away by water vaporization; represents the power of flexible resources in period t; η represents the utilization rate of reducing gas; It represents the unit energy consumption of hydrogen production by water electrolysis, in ¥ / MWh; represents the hydrogen production power by water electrolysis during period t; represents a 0,1 variable, indicating the adjustable state of the adjustable load; Indicates the minimum power of the adjustable load; Indicates the maximum power of the adjustable load; Indicates the start time when the adjustable load is allowed to be adjusted; t indicates the index of the cycle, and td indicates the length of the adjustable period; Indicates the adjustable state of the adjustable load at time t-1, which is a 0-1 variable.

15. A hydrogen metallurgical energy dynamic balance regulating device, characterized in that: The device is arranged in a hydrogen metallurgical energy dynamic balance regulation system, which includes a vertical furnace, a gas supply and storage device, a power supply device, a hydrogen production device, and a hydrogen storage device; the device includes: The first construction module is used to construct a hydrogen metallurgical shaft furnace mass balance calculation model based on hydrogen metallurgical capacity planning, and to construct a hydrogen metallurgical shaft furnace heat balance model based on the kinetic characteristics of hydrogen metallurgical reduction reactions; The second construction module is used to construct a new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on the mass balance calculation model of the hydrogen metallurgical shaft furnace, the heat balance model of the hydrogen metallurgical shaft furnace, and the pre-acquired day-ahead predicted profile data of wind and solar power generation in the power supply device; wherein the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model includes the hourly total amount of reduced iron balls in the hydrogen metallurgical shaft furnace, the ratio of hydrogen and carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device; A parameterized processing module is used to perform parameterized adjustments on the total amount of reduced iron balls per hour in the hydrogen metallurgical shaft furnace, the ratio of hydrogen to carbon monoxide in the reducing gas, the hourly production capacity of the shaft furnace, and the output of wind and solar power generation in the power supply device in the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model according to the pre-acquired measured data of the hydrogen metallurgical shaft furnace and the pre-built carbon emission calculation model; The solution module is used to solve the new energy-hydrogen production-hydrogen storage-hydrogen metallurgy comprehensive scheduling model based on preset objective functions and constraints to obtain solution results of adjustable parameters.

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