Solid oxide electrolytic cell stack multi-scene dynamic control method, system and equipment

Abstract

The invention belongs to the technical field of solid oxide electrolytic cells, and particularly discloses a multi-scene dynamic control method, system and equipment for an electric pile of a solid oxide electrolytic cell. According to the application, a target dynamic control strategy is determined according to a current scene; according to the target dynamic control strategy, adjusting operation parameters of each component in a target system where the solid oxide electrolytic cell stack is located; generating cathode side gas according to the input water flow and the input hydrogen; an anode-side gas is generated from the input air. Through the above mode, the target dynamic control strategy adapted to the current scene of the solid oxide electrolytic cell stack is formulated, the operation parameters of each assembly are adjusted according to the target dynamic control strategy, and the operation parameters comprise the gas circulation ratio determined according to the operation characteristics of the stack. And then different gases are generated based on the target system after parameter adjustment, so that the stability of the galvanic pile running in multiple scenes can be effectively improved, the damage of parts is reduced, and the service life of the galvanic pile is prolonged.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of solid oxide electrolysis cell, more specifically, relates to a solid oxide electrolysis cell stack multi-scenario dynamic control method, system and device. BACKGROUND

[0002] As a kind of high-temperature electrochemical device, solid oxide electrolysis cell (SOEC) stack can utilize electrical energy to efficiently electrolyze water vapor into hydrogen, with the advantages of higher energy conversion efficiency and lower electrical energy demand, and has been widely favored. However, the current SOEC stack relies on single parameter (such as current, temperature or gas flow) for control, lacks systematic consideration of the coupling relationship between multi-dimensional parameters, and the control strategy is not specifically formulated for a particular scenario, resulting in SOEC stack response lag in complex operating scenarios, unstable power regulation and large fluctuations. Therefore, the existing SOEC stack has poor stability in multiple scenarios. SUMMARY

[0003] In view of the defects of the prior art, the purpose of the present application is to provide a solid oxide electrolysis cell stack multi-scenario dynamic control method, system and device, which aims to solve the problem of poor stability of the existing SOEC stack in multiple scenarios.

[0004] To achieve the above-mentioned purpose, in a first aspect, the present application provides a solid oxide electrolysis cell stack multi-scenario dynamic control method, comprising: obtaining the current scenario of the solid oxide electrolysis cell stack, and determining the target dynamic control strategy according to the current scenario; adjusting the operating parameters of each component in the target system where the solid oxide electrolysis cell stack is located according to the target dynamic control strategy; based on the target system after adjusting the parameters, generating cathode side gas according to input water flow and input hydrogen, and storing the cathode side gas; based on the target system after adjusting the parameters, generating anode side gas according to input air, and discharging the anode side gas.

[0005] In an embodiment, the target dynamic control strategy includes a hot standby dynamic control strategy; the step of adjusting the operating parameters of each component in the target system where the solid oxide electrolysis cell stack is located according to the target dynamic control strategy includes: according to the hot standby dynamic control strategy, controlling the temperature deviation of the solid oxide electrolysis cell stack within a first range by adjusting the power of the stack heater in the target system where the solid oxide electrolysis cell stack is located; According to the hot standby dynamic control strategy, the current air flow is controlled to be a first percentage of the normal air flow, and the current water vapor flow is controlled to be a second percentage of the normal water vapor flow, by adjusting the flow valves in the target system in which the solid oxide electrolysis cell stack is located; According to the hot standby dynamic control strategy, the temperature difference between the entering temperature and the current temperature of the solid oxide electrolysis cell stack is controlled to be within a second range, by adjusting the parameters of the heaters in the target system in which the solid oxide electrolysis cell stack is located. According to the hot standby dynamic control strategy, the hydrogen circulation ratio is set to a first circulation value, by adjusting the parameters of the hydrogen circulation pump in the target system in which the solid oxide electrolysis cell stack is located.

[0006] In an embodiment, the target dynamic control strategy includes a cold start dynamic control strategy; and the step of adjusting the operating parameters of each component in the target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy includes: In a first time period, according to the cold start dynamic control strategy, the temperature of the solid oxide electrolysis cell stack is controlled to increase to a first temperature value at a first temperature rate, the current air flow is controlled to be a third percentage of the normal air flow, the power of the anode gas heater is controlled to increase to a first power value, and the inlet gas temperature of the anode gas heater is controlled to increase to a second temperature value at a second temperature rate; In a second time period, according to the cold start dynamic control strategy, the temperature of the solid oxide electrolysis cell stack is controlled to increase to a third temperature value at a third temperature rate, the current air flow is controlled to increase to a first flow value at a first flow rate, the current water vapor flow is controlled to increase to a second flow value at a second flow rate, the power of the anode gas heater is controlled to increase to a second power value, the inlet gas temperature is controlled to increase to a fourth temperature value at a fourth temperature rate, the power of the cathode gas heater is controlled to increase to a third power value, and the inlet gas temperature is controlled to increase to a fifth temperature value at a fifth temperature rate; In a third time period, according to the cold start dynamic control strategy, the temperature of the solid oxide electrolysis cell stack is controlled to increase to a sixth temperature value at a sixth temperature rate, the current air flow is controlled to increase to the normal air flow, the current water vapor flow is controlled to increase to the normal water vapor flow, the power of the anode gas heater is controlled to increase to a third power value, the inlet gas temperature is controlled to increase to a seventh temperature value at a seventh temperature rate, the power of the cathode gas heater is controlled to increase to a fourth power value, and the inlet gas temperature is controlled to increase to an eighth temperature value at an eighth temperature rate; According to the cold start dynamic control strategy and the temperature of the solid oxide electrolysis cell stack, the hydrogen circulation ratio is dynamically adjusted.

[0007] In an embodiment, the target dynamic control strategy comprises a variable load operation dynamic control strategy; and the step of adjusting the operation parameters of each component in the target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy comprises: when it is detected that the load of the solid oxide electrolysis cell stack decreases to the fourth percentage of the rated power, the temperature of the solid oxide electrolysis cell stack is controlled to increase to a ninth temperature value by adjusting the power of the stack heater in the target system in which the solid oxide electrolysis cell stack is located according to the variable load operation dynamic control strategy; when it is detected that the load of the solid oxide electrolysis cell stack increases to the fifth percentage of the rated power, the temperature of the solid oxide electrolysis cell stack is controlled to decrease to a tenth temperature value by adjusting the power of the stack heater in the target system in which the solid oxide electrolysis cell stack is located according to the variable load operation dynamic control strategy; when it is detected that the current increases to the first current value, the current air flow is controlled to increase to the normal air flow and the current water vapor flow is controlled to increase to the normal water vapor flow according to the variable load operation dynamic control strategy; when it is detected that the load of the solid oxide electrolysis cell stack decreases to the sixth percentage of the rated power, the power of the anode gas heater is controlled to decrease to a fifth power value and the power of the cathode gas heater is controlled to decrease to a sixth power value according to the variable load operation dynamic control strategy; the hydrogen circulation ratio is dynamically adjusted according to the variable load operation dynamic control strategy and the load of the solid oxide electrolysis cell stack.

[0008] In an embodiment, the target dynamic control strategy comprises a shutdown dynamic control strategy; and the step of adjusting the operation parameters of each component in the target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy comprises: when it is detected that the solid oxide electrolysis cell stack ends operation, the temperature of the solid oxide electrolysis cell stack is controlled to decrease smoothly at a ninth temperature rate, the current is controlled to decrease at a first current rate, the current air flow is controlled to decrease at a third flow rate, and the current water vapor flow is controlled to decrease at a fourth flow rate according to the shutdown dynamic control strategy; the power of the anode gas heater is controlled to decrease and the inlet air temperature is controlled to decrease at a tenth temperature rate according to the shutdown dynamic control strategy; the power of the cathode gas heater is controlled to decrease and the inlet air temperature is controlled to decrease at an eleventh temperature rate according to the shutdown dynamic control strategy; the hydrogen circulation ratio is dynamically adjusted according to the shutdown dynamic control strategy and the decrease of the current.

[0009] In an embodiment, the target system after the adjustment of the parameters comprises: a water flow controller, a water pump, an evaporator, a hydrogen pump, a mixer, a cathode heat exchanger, a cathode gas heater, a solid oxide electrolysis cell stack, and a condensation dryer. The step of generating the cathode-side gas based on the target system after the adjustment of the parameters and storing the cathode-side gas comprises: After detecting that the input water flow passes through the water flow controller, the water flow is transported to the evaporator by the water pump, and the input water flow is heated and converted in the evaporator, and the water vapor obtained by the heating and conversion is transported to the mixer; The input hydrogen gas is transported to the mixer by the hydrogen pump, and the water vapor and the input hydrogen gas are mixed in the mixer; After detecting that the mixed gas is heated to a target temperature by the cathode heat exchanger and the cathode gas heater, the heated gas is electrolyzed by the solid oxide electrolysis cell stack to obtain the cathode-side gas; After detecting that the cathode-side gas passes through the cathode heat exchanger for cooling, the cooled cathode-side gas is dried by the condensation dryer, and the dried cathode-side gas is stored.

[0010] In a second aspect, the present application provides a solid oxide electrolysis cell stack multi-scenario dynamic control system, comprising: A determination module is configured to obtain a current scenario of a solid oxide electrolysis cell stack, and determine a target dynamic control strategy according to the current scenario; An adjustment module is configured to adjust the operation parameters of each component in a target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy; A generation module is configured to generate a cathode-side gas based on the target system after the adjustment of the parameters and according to input water flow and input hydrogen gas, and store the cathode-side gas; The generation module is further configured to generate an anode-side gas based on the target system after the adjustment of the parameters and according to input air, and discharge the anode-side gas.

[0011] In a third aspect, the present application provides an electronic device, comprising: at least one memory configured to store a program; and at least one processor configured to execute the program stored in the memory, and when the program stored in the memory is executed, the processor is configured to execute the method described in the first aspect or any possible implementation manner of the first aspect.

[0012] In a fourth aspect, the present application provides a computer readable storage medium, which stores a computer program. When the computer program is run on a processor, the processor executes the method described in the first aspect or any possible implementation manner of the first aspect.

[0013] In a fifth aspect, the present application provides a computer program product, which makes the processor execute the method described in the first aspect or any possible implementation manner of the first aspect when the computer program product is run on the processor.

[0014] It can be understood that the beneficial effects of the second aspect to the fifth aspect described above can be referred to the related description in the first aspect, which will not be repeated here.

[0015] Overall, compared with the prior art, the above technical solutions conceived by the present application have the following beneficial effects: (1) Independent dynamic control strategies are formulated for typical scenarios of SOEC stack, such as hot standby, gradual shutdown, cold start and variable load operation, and the set values (gas flow, heater power, hydrogen circulation ratio, etc.) are accurately tracked and maintained in the dynamic operation stage. It has feedback loop and feedforward loop. In the feedback control loop, independent proportional-integral-derivative (PID) control strategy is used to control the battery stack utilization and operating temperature by adjusting the reactant utilization and stack heating / cooling power. Through the cooperation of multiple control objects and the design of quantitative parameters, the running stability of SOEC stack in each scenario can be significantly improved, the thermal shock damage to ceramic components is reduced, the stack life is prolonged, the load response speed and electrolysis efficiency are improved, and it is suitable for industrial application of large-scale SOEC hydrogen production and energy storage system.

[0016] (2) According to the characteristic information of SOEC stack operation, a hydrogen circulation ratio is added, and the hydrogen circulation ratio is taken as a core parameter, and combined with the stack heater power, the cathode gas heater power, the anode gas heater power, the gas flow, the stack temperature and the gas temperature, etc. At this time, according to the target dynamic control strategy, the above parameters are adjusted, so as to effectively improve the accuracy and comprehensiveness of the adjusted parameters.

[0017] In summary, the current scenario of the solid oxide electrolysis cell stack is obtained, and a target dynamic control strategy is determined according to the current scenario; the operating parameters of each component in the target system in which the solid oxide electrolysis cell stack is located are adjusted according to the target dynamic control strategy; the cathode side gas is generated according to the input water flow and the input hydrogen based on the target system after the adjustment parameters, and the cathode side gas is stored; the anode side gas is generated according to the input air based on the target system after the adjustment parameters, and the anode side gas is discharged. In this way, a target dynamic control strategy suitable for the current scenario of the solid oxide electrolysis cell stack is formulated, and the operating parameters of each component are adjusted according to the target dynamic control strategy, including the gas circulation ratio determined according to the operating characteristics of the solid oxide electrolysis cell stack, and then different gases are generated based on the target system after the adjustment parameters, thereby effectively improving the stability of the stack in multiple scenarios, reducing component damage, and prolonging the service life of the stack. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is one of the flowcharts of the solid oxide electrolysis cell stack multi-scenario dynamic control method provided by the embodiments of the present application; Figure 2 is a schematic diagram of the overall structure of the solid oxide electrolysis cell stack multi-scenario dynamic control system provided by the embodiments of the present application; Figure 3 is another flowchart of the solid oxide electrolysis cell stack multi-scenario dynamic control method provided by the embodiments of the present application; Figure 4 is a schematic diagram of the module structure of the solid oxide electrolysis cell stack multi-scenario dynamic control system provided by the embodiments of the present application; Figure 5 is a schematic diagram of the structure of an electronic device provided by the embodiments of the present application. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0020] The term "and / or" in this paper is a description of the association relationship between the associated objects, which means that there can be three kinds of relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B at the same time, and the existence of B alone. The symbol " / " in this paper represents the relationship of or between associated objects, for example, A / B represents A or B.

[0021] The terms "first" and "second" and the like in the description and claims of this application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. For instance, a first response message and a second response message are used for distinguishing between two different response messages and not necessarily for describing a particular sequential or chronological order.

[0022] In the embodiments of the present application, the words "exemplary" and "for example" are used to mean serving as an example, instance, or illustration, at 99 least with respect to the matters described at that point in the disclosure. The use of any of these terms in the description is not intended to relate to the preference or inherent superiority of one example, instance, or illustration over another example, instance, or illustration.

[0023] Based on this, the embodiments of the present application provide a solid oxide electrolysis cell stack multi-scenario dynamic control method, which refers to Figure 1 , Figure 1 is one of the process schematic diagrams of the solid oxide electrolysis cell stack multi-scenario dynamic control method provided by the embodiments of the present application. In the embodiments, the solid oxide electrolysis cell stack multi-scenario dynamic control method comprises steps S10 to S40: Step S10, obtaining a current scenario of a solid oxide electrolysis cell stack, and determining a target dynamic control strategy according to the current scenario.

[0024] It should be noted that the current scenario refers to the running scenario of the solid oxide electrolysis cell stack at the current time, and the embodiments will formulate a suitable target dynamic control strategy according to the current scenario of the solid oxide electrolysis cell stack. Independent dynamic control strategies are formulated for typical scenarios such as hot standby, gradual shutdown, cold start, and variable load operation. For example, when the current scenario of the solid oxide electrolysis cell stack is a hot standby scenario, the determined target dynamic control strategy is a hot standby dynamic control strategy, when the current scenario of the solid oxide electrolysis cell stack is a gradual shutdown scenario, the determined target dynamic control strategy is a shutdown dynamic control strategy, when the current scenario of the solid oxide electrolysis cell stack is a cold start scenario, the determined target dynamic control strategy is a cold start dynamic control strategy, and when the current scenario of the solid oxide electrolysis cell stack is a variable load operation scenario, the determined target dynamic control strategy is a variable load operation dynamic control strategy.

[0025] Step S20, adjusting the running parameters of each component in a target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy.

[0026] It can be understood that after the target dynamic control strategy is determined, the operating parameters of each component in the target system where the solid oxide electrolysis cell stack is located can be adjusted according to the target dynamic control strategy, including but not limited to the hydrogen circulation ratio, the power of the stack heater, the power of the cathode gas heater, the power of the anode gas heater, the gas flow rate, the stack temperature, and the gas temperature, which are determined according to the operating characteristics of the solid oxide electrolysis cell stack. In addition, the rated power of the SOEC stack can be 200 kW.

[0027] Further, the target dynamic control strategy includes: a hot standby dynamic control strategy; step S20 includes: according to the hot standby dynamic control strategy, by adjusting the power of the stack heater in the target system where the solid oxide electrolysis cell stack is located, the temperature deviation of the solid oxide electrolysis cell stack is controlled within a first range; according to the hot standby dynamic control strategy, by adjusting the flow valve in the target system where the solid oxide electrolysis cell stack is located, the current air flow rate is controlled to be a first percentage of the normal air flow rate, and the current steam flow rate is controlled to be a second percentage of the normal steam flow rate; according to the hot standby dynamic control strategy, by adjusting the parameters of each heater in the target system where the solid oxide electrolysis cell stack is located, the temperature difference between the inlet temperature and the current temperature of the solid oxide electrolysis cell stack is controlled to be within a second range; according to the hot standby dynamic control strategy, by adjusting the parameters of the hydrogen circulation pump in the target system where the solid oxide electrolysis cell stack is located, the hydrogen circulation ratio is set to a first circulation value.

[0028] It should be understood that the current scenario of the solid oxide electrolysis cell stack is described as a hot standby scenario, and in the hot standby scenario, according to the hot standby dynamic control strategy, by adjusting the power of the stack heater in the target system where the solid oxide electrolysis cell stack is located, the temperature deviation of the solid oxide electrolysis cell stack is controlled within a first range, which can be ±5℃, and the temperature of the solid oxide electrolysis cell stack after control is 680℃, which avoids the delay of starting due to too low temperature or the waste of energy due to too high temperature.

[0029] It can be understood that for a SOEC stack with a rated power of 200 kW, the normal air flow rate during normal operation is , and the normal steam flow rate is In the hot standby scenario, the SOEC stack needs to maintain a low flow circulation, at which time according to the hot standby dynamic control strategy, by adjusting the flow valve in the target system where the solid oxide electrolysis cell stack is located, the current air flow rate is controlled to be a first percentage of the normal air flow rate, and the current steam flow rate is controlled to be a second percentage of the normal steam flow rate, the first percentage can be 40%, i.e. , the second percentage can be 35%, i.e. Such flow can ensure uniform distribution of gas inside the SOEC stack and reduce unnecessary consumption of reactants.

[0030] It should be noted that, in order to avoid the low-temperature gas from entering and causing the local temperature of the stack to drop sharply, damaging the electrolyte layer, the embodiment will also control the difference between the entering temperature and the current temperature of the solid oxide electrolysis cell stack to be within a second range according to the hot standby dynamic control strategy, by adjusting the parameters of each heater in the target system where the solid oxide electrolysis cell stack is located, the second range can be 30℃, for example, air is heated to 650℃ by the anode gas heater, and water vapor is heated to 660℃ by the cathode gas heater. In addition, in order to maintain the hydrogen concentration on the cathode side of the SOEC stack stable at more than 92%, and prevent the local hydrogen concentration from being too low to cause material oxidation, the hydrogen circulation ratio will be set to a first circulation value according to the hot standby dynamic control strategy, by adjusting the parameters of the hydrogen circulating pump in the target system where the solid oxide electrolysis cell stack is located, the first circulation value can be 0.3.

[0031] Further, the target dynamic control strategy includes: a cold start dynamic control strategy; and step S20 includes: in a first time period, according to the cold start dynamic control strategy, controlling the temperature of the solid oxide electrolysis cell stack to increase to a first temperature value at a first temperature rate, controlling the current air flow to be a third percentage of the normal air flow, controlling the power of the anode gas heater to increase to a first power value, and controlling the inlet air temperature of the anode gas heater to increase to a second temperature value at a second temperature rate; in a second time period, according to the cold start dynamic control strategy, controlling the temperature of the solid oxide electrolysis cell stack to increase to a third temperature value at a third temperature rate, controlling the current air flow to increase to a first flow value at a first flow rate, controlling the current water vapor flow to increase to a second flow value at a second flow rate, controlling the power of the anode gas heater to increase to a second power value, controlling the inlet air temperature to increase to a fourth temperature value at a fourth temperature rate, controlling the power of the cathode gas heater to increase to a third power value, and controlling the inlet air temperature to increase to a fifth temperature value at a fifth temperature rate; in a third time period, according to the cold start dynamic control strategy, controlling the temperature of the solid oxide electrolysis cell stack to increase to a sixth temperature value at a sixth temperature rate, controlling the current air flow to increase to the normal air flow, controlling the current water vapor flow to increase to the normal water vapor flow, controlling the power of the anode gas heater to increase to a third power value, controlling the inlet air temperature to increase to a seventh temperature value at a seventh temperature rate, controlling the power of the cathode gas heater to increase to a fourth power value, and controlling the inlet air temperature to increase to an eighth temperature value at an eighth temperature rate; and dynamically adjusting the hydrogen circulation ratio according to the cold start dynamic control strategy and the temperature of the solid oxide electrolysis cell stack.

[0032] It can be understood that the current scenario of the solid oxide electrolysis cell stack is described as a cold start scenario. The cold start is a critical stage from room temperature (25°C) to normal operation of the stack, which needs to control the temperature rising rate to prevent component damage, and gradually establish the reaction environment. The entire start-up process is divided into a first time period, a second time period, and a third time. The first time period can be the first 10 minutes, the second time period can be the middle 15 minutes, and the third time period can be the last 15 minutes. In a time period, low-temperature preheating is performed to remove moisture on the surface of the components. At this time, according to the cold start dynamic control strategy, the temperature of the solid oxide electrolysis cell stack can be controlled to increase to a first temperature value at a first temperature rate. The first temperature rate can be 5°C / min, and the first temperature value can be 75°C, i.e., from 25°C to 75°C. Within 10 minutes after starting, the SOEC stack temperature is less than 100°C, no water vapor is introduced, only preheated air is introduced, and the current air flow is controlled to be a third percentage of the normal air flow. The third percentage can be 10%, i.e., In 10 minutes, the power of the anode gas heater is controlled to increase to a first power value, which can be 20 kW, i.e. from 0 kW to 20 kW; the inlet gas temperature of the anode gas heater is controlled to increase to a second temperature value at a second temperature rate, which can be 7 ℃ / min, and the second temperature value can be 95 ℃, i.e. from 25 ℃ to 95 ℃.

[0033] It should be understood that, in the second time period, the temperature is rapidly increased to approach the normal operating temperature, at which time the temperature of the solid oxide electrolysis cell stack can be controlled to increase to a third temperature value at a third temperature rate according to the cold start dynamic control strategy, which can be 4 ℃ / min, and the third temperature value can be 675 ℃; the current air flow rate is also controlled to increase to a first flow rate value at a first flow rate, which can be , the first flow rate value can be , i.e. from to , which is 90% of the normal air flow rate; at the same time, water vapor is introduced, and the current water vapor flow rate is also controlled to increase to a second flow rate value at a second flow rate, which can be , the second flow rate value can be , i.e. from to , which is 80% of the normal water vapor flow rate; the power of the anode gas heater is also controlled to increase to a second power value, which is 28 kW, and the inlet gas temperature is controlled to increase to a fourth temperature value at a fourth temperature rate, which can be 34 ℃ / min, i.e. from 95 ℃ to 600 ℃ at a rate of 34 ℃ / min; the power of the cathode gas heater is also controlled to increase to a third power value, which can be 22 kW, i.e. from 0 kW to 22 kW; and the inlet gas temperature is controlled to increase to a fifth temperature value at a fifth temperature rate, which can be 38.3 ℃ / min, i.e. from 25 ℃ to 600 ℃ at a rate of 38.3 ℃ / min.

[0034] It can be understood that, in the third time period, a smooth transition is achieved to avoid temperature overshoot, and at this time, the temperature of the solid oxide electrolysis cell stack can be controlled to increase to a sixth temperature value at a sixth temperature rate according to the cold start dynamic control strategy, the sixth temperature rate can be 1.7℃ / min, and the sixth temperature value can be 700℃; the current air flow rate is also controlled to increase to the normal air flow rate, and the current water vapor flow rate is controlled to increase to the normal water vapor flow rate to meet the full load reaction requirement; the power of the anode gas heater is also controlled to increase to a third power value, the third power value can be 30kW; the inlet gas temperature is also controlled to increase to a seventh temperature value at a seventh temperature rate, the seventh temperature rate can be 6.67℃ / min, and the seventh temperature value can be 700℃, that is, the inlet gas temperature increases at a rate of 6.67℃ / min; the power of the cathode gas heater is also controlled to increase to a fourth power value, the fourth power value can be 25kW; the inlet gas temperature is also controlled to increase to an eighth temperature value at an eighth temperature rate, the eighth temperature rate can be 7.33℃ / min, and the eighth temperature value can be 710℃, that is, the inlet gas temperature increases at a rate of 7.33℃ / min from 600℃ to 710℃, which is slightly higher than the temperature of the SOEC stack to compensate for the gas transmission heat loss.

[0035] It also needs to be emphasized that the hydrogen circulation ratio can be dynamically adjusted according to the cold start dynamic control strategy and the temperature of the solid oxide electrolysis cell stack, specifically: when the temperature of the SOEC stack increases to 300℃, the preliminary reaction conditions are met, the hydrogen circulation system is started, and the initial hydrogen circulation ratio is 0.1; when the temperature of the SOEC stack increases to 500℃, the hydrogen circulation ratio increases to 0.3; when the temperature of the SOEC stack reaches 700℃, the hydrogen circulation ratio is adjusted to 0.5 (normal operating value), ensuring that the hydrogen concentration on the cathode side gradually increases from 85% to 95% to meet the reaction requirement.

[0036] Further, the target dynamic control strategy includes: a variable load operation dynamic control strategy; in step S20, when it is detected that the load of the solid oxide electrolysis cell stack decreases to the fourth percentage of the rated power, the temperature of the solid oxide electrolysis cell stack is controlled to increase to a ninth temperature value according to the variable load operation dynamic control strategy by adjusting the power of the stack heater in the target system in which the solid oxide electrolysis cell stack is located; when it is detected that the load of the solid oxide electrolysis cell stack increases to the fifth percentage of the rated power, the temperature of the solid oxide electrolysis cell stack is controlled to decrease to a tenth temperature value according to the variable load operation dynamic control strategy by adjusting the power of the stack heater in the target system in which the solid oxide electrolysis cell stack is located; when it is detected that the current increases to a first current value, the current air flow is increased to the normal air flow, and the current water vapor flow is increased to the normal water vapor flow according to the variable load operation dynamic control strategy; when it is detected that the load of the solid oxide electrolysis cell stack decreases to the sixth percentage of the rated power, the power of the anode gas heater is controlled to decrease to a fifth power value, and the power of the cathode gas heater is controlled to decrease to a sixth power value according to the variable load operation dynamic control strategy; and the hydrogen circulation ratio is dynamically adjusted according to the variable load operation dynamic control strategy and the load of the solid oxide electrolysis cell stack.

[0037] It should be understood that the current scenario of the solid oxide electrolysis cell stack is described as a variable load operation scenario, in which the external load fluctuation needs to be quickly responded, the stack parameters need to be maintained stable, the local overheating or reactant supply shortage needs to be avoided, the load change range covers 20%-100% of the rated power (40-200 kW), and the temperature of the SOEC stack is maintained at 700°C when the rated power is 200 kW. When it is detected that the load of the solid oxide electrolysis cell stack decreases to the fourth percentage of the rated power, the temperature of the SOEC stack may decrease to 685°C due to the decrease of reaction heat release, at this time, the temperature of the solid oxide electrolysis cell stack is controlled to increase to a ninth temperature value according to the variable load operation dynamic control strategy by adjusting the power of the stack heater in the target system in which the solid oxide electrolysis cell stack is located, i.e., the power of the stack heater is increased from 5 kW to 12 kW. When it is detected that the load of the solid oxide electrolysis cell stack increases to the fifth percentage of the rated power, it indicates that the reaction heat release increases, and the temperature may increase to 710°C, at this time, the temperature of the solid oxide electrolysis cell stack is controlled to decrease to a tenth temperature value by adjusting the power of the stack heater in the target system in which the solid oxide electrolysis cell stack is located, for example, the power of the stack heater is decreased to 2 kW, and the temperature of the solid oxide electrolysis cell stack is 705°C.

[0038] It should be noted that the temperature fluctuation during the entire load change process is strictly controlled between 680-720℃, avoiding exceeding the stable working temperature range of the electrolyte. The inlet flow rates of water vapor and air are linearly related to the current (load). When the current is detected to increase to the first current value, according to the dynamic control strategy of variable load operation, the current air flow rate is controlled to increase to the normal air flow rate, and the current water vapor flow rate is controlled to increase to the normal water vapor flow rate, for example, the current air flow rate is controlled to increase to the normal air flow rate according to proportion from to , and the current water vapor flow rate is controlled to increase to the normal water vapor flow rate according to proportion from to . The flow rate adjustment response time is ≤1.5s, which is fed back in real time through the flow rate sensor, and the accuracy is controlled within ±5%, ensuring that the reactants match the load demand. When the load changes, the inlet temperature needs to be adjusted in coordination with the temperature of the SEOC stack. When the load of the solid oxide electrolysis cell stack is detected to decrease to the sixth percentage of the rated power, according to the dynamic control strategy of variable load operation, the power of the anode gas heater is controlled to decrease to the fifth power value, which can be 18kW, the temperature of the SEOC stack decreases to 680℃, the power of the anode gas heater decreases from 30kW to 18kW, and the air inlet temperature decreases from 700℃ to 670℃; the power of the cathode gas heater is also controlled to decrease to the sixth power value, which can be 15kW, i.e. the power of the cathode gas heater decreases from 25kW to 15kW, and the water vapor inlet temperature decreases from 710℃ to 680℃. In addition, when the load of the solid oxide electrolysis cell stack is detected to increase to 200kW, the temperature of the SEOC stack is 700℃, the air inlet temperature returns to 700℃, and the water vapor inlet temperature returns to 710℃, the difference between the inlet temperature and the stack temperature is always within the range of 10-30℃, reducing thermal shock.

[0039] It should also be emphasized that the hydrogen circulation ratio is also adjusted synchronously with the load, which can be dynamically adjusted according to the dynamic control strategy of variable load operation and the load of the solid oxide electrolysis cell stack. Specifically, when the load is 20%-50% of the rated power, the hydrogen circulation ratio is set to 0.4, and when the load is 50%-100% of the rated power, the hydrogen circulation ratio is set to 0.5. The model predictive control (MPC) algorithm is used to adjust the circulation pump speed 0.5s in advance according to the load instruction, ensuring the stability of the hydrogen concentration and avoiding side reactions caused by the lag of the hydrogen circulation ratio.

[0040] Further, the target dynamic control strategy includes: a shutdown dynamic control strategy; in step S20, when it is detected that the solid oxide electrolysis cell stack ends running, according to the shutdown dynamic control strategy, the temperature of the solid oxide electrolysis cell stack is controlled to be smoothly cooled at a ninth temperature rate, the current is controlled to be reduced at a first current rate, the current air flow is controlled to be reduced at a third flow rate, and the current water vapor flow is controlled to be reduced at a fourth flow rate; according to the shutdown dynamic control strategy, the power of the anode gas heater is controlled to be reduced, and the inlet air temperature is controlled to be reduced at a tenth temperature rate; according to the shutdown dynamic control strategy, the power of the cathode gas heater is controlled to be reduced, and the inlet air temperature is controlled to be reduced at an eleventh temperature rate; according to the shutdown dynamic control strategy and the reduction value of the current, the hydrogen circulation ratio is dynamically adjusted.

[0041] It can be understood that the current scenario of the solid oxide electrolysis cell stack is gradually stopped, and the detection of the solid oxide electrolysis cell stack ending running indicates that the shutdown dynamic control strategy needs to follow the logic of “first reducing load, then reducing temperature, and finally stopping air supply”, to avoid parameter mutation causing stress concentration in the cell and component thermal shock cracking. According to the shutdown dynamic control strategy, the temperature of the solid oxide electrolysis cell stack can be smoothly cooled at a ninth temperature rate, which can be 1.5 ℃ / min, and the temperature of the solid oxide electrolysis cell stack can be 700 ℃ in normal operation. The current air flow and the current water vapor flow decrease synchronously with the current, that is, the current is controlled to be reduced at a first current rate, the current air flow is controlled to be reduced at a third flow rate, and the current water vapor flow is controlled to be reduced at a fourth flow rate. The first current rate can be 0.2 A / s, that is, the load is reduced to 0 A at a rate of 0.2 A / s. The third flow rate can be , that is, the current air flow is reduced from to at a rate of , the air valve is closed 5 minutes before shutdown, and the fourth flow rate can be , that is, the current water vapor flow is reduced from to at a rate of ., the water vapor valve is closed 8 minutes before shutdown to avoid gas residue causing electrode oxidation. In addition, the inlet gas temperature is lowered synchronously with the temperature of the SOEC stack, specifically: according to the shutdown dynamic control strategy, the power of the anode gas heater is controlled to be reduced, and the inlet gas temperature is controlled to be lowered at a tenth temperature rate, for example, the power of the anode gas heater is reduced from the rated 30 kW to 0 kW, and the inlet gas temperature is reduced from 700°C at a rate of 1.2°C / min to room temperature (25°C); according to the shutdown dynamic control strategy, the power of the cathode gas heater is controlled to be reduced, and the inlet gas temperature is controlled to be lowered at an eleventh temperature rate, for example, the power of the cathode gas heater is reduced from the rated 25 kW to 0 kW, and the inlet gas temperature is reduced from 710°C at a rate of 1.4°C / min to 120°C to prevent water vapor condensation.

[0042] It should also be emphasized that the hydrogen circulation ratio can be dynamically adjusted according to the shutdown dynamic control strategy and the current reduction value, specifically: when the current reduction value is 50% of the rated current, the hydrogen circulation ratio is reduced from 0.5 in normal operation to 0.3 according to the shutdown dynamic control strategy, when the current reduction value is 25% of the rated current, the hydrogen circulation ratio is further reduced to 0.1, and when the current is 0, the hydrogen circulation pump is turned off to avoid energy loss caused by non-reactive circulation of hydrogen.

[0043] Step S30, based on the target system after adjustment of the parameters, generating cathode side gas according to the input water flow and the input hydrogen, and storing the cathode side gas.

[0044] It should be understood that the target system refers to a system provided with a solid oxide electrolysis cell stack, which can be a SOEC system, and when the input of the target system after adjustment of the parameters is the input water flow and the input hydrogen, the output is the cathode side gas, which can be hydrogen and oxygen.

[0045] Step S40, based on the target system after adjustment of the parameters, generating anode side gas according to the input air, and discharging the anode side gas.

[0046] It can be understood that when the input of the target system after adjustment of the parameters is the input air, the output is the anode side gas, which can be a mixture of air and oxygen.

[0047] It should be noted that reference is made to Figure 2 , Figure 2The overall structure of the solid oxide electrolysis cell stack multi-scene dynamic control system is shown in the figure, and specifically includes: a water flow controller (101), an air flow controller (102), a water pump (2), an evaporator (3), a hydrogen storage tank (4), a condenser dryer (5), a hydrogen pump (6), a mixer (7), a cathode heat exchanger (801), an anode heat exchanger (802), a cathode gas heater (901), an anode gas heater (902), an air compressor (10), and a solid oxide electrolysis cell stack (11). The input of the water flow controller (101) is the input water flow, the input of the hydrogen pump (6) is the input hydrogen, and the input of the air flow controller (102) is the air. The hydrogen storage tank (4) is used to store the cathode side gas, and the anode side gas is discharged after being cooled by the anode heat exchanger (802).

[0048] The embodiment obtains the current scene of the solid oxide electrolysis cell stack, determines the target dynamic control strategy according to the current scene, adjusts the operating parameters of each component in the target system where the solid oxide electrolysis cell stack is located according to the target dynamic control strategy, generates the cathode side gas according to the input water flow and the input hydrogen based on the target system after the adjustment parameters, and stores the cathode side gas. The anode side gas is generated according to the input air based on the target system after the adjustment parameters, and the anode side gas is discharged. In the above manner, the target dynamic control strategy suitable for the current scene of the solid oxide electrolysis cell stack is formulated, and the operating parameters of each component are adjusted according to the target dynamic control strategy. The operating parameters include the gas circulation ratio determined according to the operating characteristics of the solid oxide electrolysis cell stack. Then, different gases are generated based on the target system after the adjustment parameters, so that the stability of the cell stack operating in multiple scenes can be effectively improved, the damage to the components can be reduced, and the service life of the cell stack can be prolonged.

[0049] In a specific embodiment, the application provides a step of generating the cathode side gas. Please refer to Figure 3 , Figure 3 is the second flowchart of the solid oxide electrolysis cell stack multi-scene dynamic control method provided by the embodiment of the application. The target system after the adjustment parameters includes: a water flow controller, a water pump, an evaporator, a hydrogen pump, a mixer, a cathode heat exchanger, a cathode gas heater, a solid oxide electrolysis cell stack, and a condenser dryer. Step S30 includes steps S301-S304: Step S301, after detecting that the input water flow passes through the water flow controller, the water pump transports the water flow to the evaporator, and the input water flow is heated and converted in the evaporator. The water vapor obtained by heating and conversion is transported to the mixer.

[0050] It should be noted that after detecting the input water flow passing through the water flow controller and being delivered to the evaporator by the water pump, the input water flow is heated in the evaporator and converted into water vapor, and then the water vapor is delivered to the mixer and mixed with the input hydrogen gas delivered by the evaporator.

[0051] Step S302, the input hydrogen gas is delivered to the mixer by the hydrogen pump, and the water vapor and the input hydrogen gas are mixed in the mixer.

[0052] It can be understood that while the converted water vapor is delivered to the mixer, the hydrogen pump will also deliver the input hydrogen gas to the mixer, and at this time, the water vapor and the input hydrogen gas will be mixed in the mixer.

[0053] Step S303, when detecting that the cathode heat exchanger and the cathode gas heater heat the mixed gas to the target temperature, the heated gas is electrolyzed by the solid oxide electrolysis cell stack to obtain the cathode side gas.

[0054] It should be understood that the mixed gas in the mixer is heated by the cathode heat exchanger and the cathode gas heater, and at this time, the temperature of the mixed gas is detected in real time to determine whether it reaches the target temperature. If so, it means that the electrolysis requirement is met, and at this time, the heated gas is delivered to the cathode side of the solid oxide electrolysis cell stack, and an electrolysis reaction occurs in the solid oxide electrolysis cell stack to generate the cathode side gas. It should be noted that while the input water flow is heated in the evaporator and converted into water vapor, the input air also passes through the air flow controller and is delivered to the anode heat exchanger by the air compressor for preheating. The preheated air is further heated by the anode gas heater and then delivered to the anode side of the solid oxide electrolysis cell stack to generate the anode side gas.

[0055] Step S304, after detecting that the cathode side gas is cooled by the cathode heat exchanger, the cooled cathode side gas is dried by the condensation dryer, and the dried cathode side gas is stored.

[0056] It can be understood that after the cathode side gas is generated by the solid oxide electrolysis cell stack, the cathode side gas is delivered to the cathode heat exchanger, the cathode side gas is cooled by the cathode heat exchanger, and then the cooled cathode side gas is dried by the condensation dryer, and the dried cathode side gas is stored in the hydrogen storage tank for next use.

[0057] The embodiment detects the input water flow passing through the water flow controller, and transports the water flow to the evaporator by the water pump, and converts the input water flow into water vapor in the evaporator, and transports the water vapor to the mixer; the input hydrogen is transported to the mixer by the hydrogen pump, and the water vapor and the input hydrogen are mixed in the mixer; when the mixed gas is heated to the target temperature by the cathode heat exchanger and the cathode gas heater, the heated gas is electrolyzed by the solid oxide electrolysis cell stack to obtain the cathode side gas; after the cathode side gas is cooled by the cathode heat exchanger, the cooled cathode side gas is dried by the condensation dryer, and the dried cathode side gas is stored. In the above manner, after the input water flow is converted into water vapor in the evaporator, the water vapor is transported to the mixer, at the same time, the input hydrogen is transported to the mixer by the hydrogen pump, at this time, the gas is mixed in the mixer, and when the temperature of the heated mixed gas reaches the target temperature, electrolysis is performed by the solid oxide electrolysis cell stack, so that the efficiency of generating the cathode side gas can be effectively improved.

[0058] The solid oxide electrolysis cell stack multi-scene dynamic control system provided in the application is described below, and the solid oxide electrolysis cell stack multi-scene dynamic control system described below can be correspondingly referred to the solid oxide electrolysis cell stack multi-scene dynamic control method described above. Please refer to Figure 4 , Figure 4 is a module structure schematic diagram of the solid oxide electrolysis cell stack multi-scene dynamic control system provided in the embodiment of the application, comprising: The determining module T10 is configured to obtain a current scene of the solid oxide electrolysis cell stack, and determine a target dynamic control strategy according to the current scene.

[0059] The adjusting module T20 is configured to adjust the operation parameters of each component in the target system where the solid oxide electrolysis cell stack is located according to the target dynamic control strategy.

[0060] The generating module T30 is configured to generate the cathode side gas according to the input water flow and the input hydrogen based on the target system after the adjustment parameters, and store the cathode side gas.

[0061] The generating module T30 is further configured to generate the anode side gas according to the input air based on the target system after the adjustment parameters, and discharge the anode side gas.

[0062] The embodiment obtains a current scene of a solid oxide electrolysis cell stack, determines a target dynamic control strategy according to the current scene, adjusts operation parameters of each component in a target system where the solid oxide electrolysis cell stack is located according to the target dynamic control strategy, generates cathode side gas according to input water flow and input hydrogen based on the target system after adjustment of parameters, and stores the cathode side gas, generates anode side gas according to input air based on the target system after adjustment of parameters, and discharges the anode side gas. In this way, a target dynamic control strategy suitable for the current scene of the solid oxide electrolysis cell stack is formulated, and operation parameters of each component are adjusted according to the target dynamic control strategy, including a gas circulation ratio determined according to the operation characteristics of the solid oxide electrolysis cell stack, and then different gases are generated based on the target system after adjustment of parameters, so that the stability of the stack in multiple scenes can be effectively improved, the damage to components can be reduced, and the service life of the stack can be prolonged.

[0063] It can be understood that the detailed function implementation of each module can be referred to the description in the foregoing method embodiments, which will not be described herein.

[0064] It should be understood that the above device is used to execute the method in the above embodiments, and the corresponding program modules in the device have similar implementation principles and technical effects to the description in the above method, and the working process of the device can be referred to the corresponding process in the above method, which will not be described herein.

[0065] Based on the method in the above embodiments, an electronic device is provided in the embodiment of the present application, which can be referred to Figure 5 , Figure 5 is a structural schematic diagram of the electronic device provided in the embodiment of the present application.

[0066] It should be noted that the electronic device can include a processor (Processor) 10, a communication interface (Communications Interface) 20, a memory (Memory) 30 and a communication bus 40, wherein the processor 10, the communication interface 20 and the memory 30 complete mutual communication through the communication bus 40. The processor 10 can call the logical instructions in the memory 30 to execute the method in the above embodiments.

[0067] Further, the logic instructions in the memory 30 described above can be implemented in the form of software function units and sold or used as independent products, and can be stored in a computer readable storage medium. Based on such understanding, the technical solutions of the present application essentially or the parts that make contributions to the prior art or parts of the technical solutions can be embodied in the form of software products. The computer software product is stored in a storage medium, and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the embodiments of the present application.

[0068] Based on the method in the above embodiments, the embodiment of the present application provides a computer readable storage medium, which stores a computer program. When the computer program runs on a processor, the processor executes the method in the above embodiments.

[0069] Based on the method in the above embodiments, the embodiment of the present application provides a computer program product. When the computer program product runs on a processor, the processor executes the method in the above embodiments.

[0070] It can be understood that the processor in the embodiments of the present application can be a central processing unit, and can also be other general-purpose processors, digital signal processors, application-specific integrated circuits, field programmable gate arrays, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor can be a microprocessor, or any conventional processor.

[0071] The method steps in the embodiments of the present application can be implemented in the form of hardware or by the processor executing software instructions. The software instructions can be composed of corresponding software modules, and the software modules can be stored in a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, a register, a hard disk, a mobile hard disk, or any other form of storage medium well known in the art. An exemplary storage medium is coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium. Of course, the storage medium can also be an integral part of the processor.

[0072] It can be understood that the various numerical numbers involved in the embodiments of the present application are only for convenient differentiation, and do not limit the scope of the embodiments of the present application. Those skilled in the art will readily understand that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A multi-scenario dynamic control method for a solid oxide electrolytic cell stack, characterized in that, The method comprises: acquiring a current scene of a solid oxide electrolysis cell stack, and determining a target dynamic control strategy according to the current scene; adjusting operation parameters of each component in a target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy; generating cathode side gas according to input water flow and input hydrogen based on the target system after the adjustment of the parameters, and storing the cathode side gas; generating anode side gas according to input air based on the target system after the adjustment of the parameters, and discharging the anode side gas.

2. The method of claim 1, wherein, The target dynamic control strategy comprises a hot standby dynamic control strategy; the step of adjusting operation parameters of each component in a target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy comprises: controlling a temperature deviation of the solid oxide electrolysis cell stack to be within a first range by adjusting a power of a stack heater in the target system according to the hot standby dynamic control strategy; controlling a current air flow to be a first percentage of a normal air flow and controlling a current water vapor flow to be a second percentage of a normal water vapor flow by adjusting a flow valve in the target system according to the hot standby dynamic control strategy; controlling an entering temperature of the solid oxide electrolysis cell stack to be within a second range from a current temperature by adjusting parameters of each heater in the target system according to the hot standby dynamic control strategy; setting a hydrogen circulation ratio to a first circulation value by adjusting parameters of a hydrogen circulation pump in the target system according to the hot standby dynamic control strategy.

3. The method of claim 1, wherein, The target dynamic control strategy comprises a cold start dynamic control strategy; the step of adjusting operation parameters of each component in a target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy comprises: controlling the temperature of the solid oxide electrolysis cell stack to increase to a first temperature value at a first temperature rate, controlling a current air flow to be a third percentage of a normal air flow, controlling a power of an anode gas heater to increase to a first power value, and controlling an air inlet temperature of the anode gas heater to increase to a second temperature value at a second temperature rate according to the cold start dynamic control strategy in a first time period; controlling the temperature of the solid oxide electrolysis cell stack to increase to a third temperature value at a third temperature rate, controlling a current air flow to increase to a first flow value at a first flow rate, controlling a current water vapor flow to increase to a second flow value at a second flow rate, controlling a power of the anode gas heater to increase to a second power value, controlling the air inlet temperature to increase to a fourth temperature value at a fourth temperature rate, controlling a power of a cathode gas heater to increase to a third power value, and controlling the air inlet temperature to increase to a fifth temperature value at a fifth temperature rate according to the cold start dynamic control strategy in a second time period; in a third time period, according to the cold start dynamic control strategy, controlling the temperature of the solid oxide electrolysis cell stack to increase to a sixth temperature value at a sixth temperature rate, controlling the current air flow to increase to the normal air flow, controlling the current water vapor flow to increase to the normal water vapor flow, controlling the power of the anode gas heater to increase to a third power value, controlling the inlet air temperature to increase to a seventh temperature value at a seventh temperature rate, controlling the power of the cathode gas heater to increase to a fourth power value, and controlling the inlet air temperature to increase to an eighth temperature value at an eighth temperature rate; according to the cold start dynamic control strategy and the temperature of the solid oxide electrolysis cell stack, dynamically adjusting the hydrogen circulation ratio.

4. The method of claim 1, wherein, the target dynamic control strategy comprises a variable load operation dynamic control strategy; the step of adjusting the operation parameters of each component in the target system where the solid oxide electrolysis cell stack is located according to the target dynamic control strategy comprises: when it is detected that the load of the solid oxide electrolysis cell stack decreases to the fourth percentage of the rated power, according to the variable load operation dynamic control strategy, the temperature of the solid oxide electrolysis cell stack is controlled to increase to a ninth temperature value by adjusting the power of the stack heater in the target system where the solid oxide electrolysis cell stack is located; when it is detected that the load of the solid oxide electrolysis cell stack increases to the fifth percentage of the rated power, according to the variable load operation dynamic control strategy, the temperature of the solid oxide electrolysis cell stack is controlled to decrease to a tenth temperature value by adjusting the power of the stack heater in the target system where the solid oxide electrolysis cell stack is located; when it is detected that the current increases to a first current value, according to the variable load operation dynamic control strategy, the current air flow is controlled to increase to the normal air flow, and the current water vapor flow is controlled to increase to the normal water vapor flow; when it is detected that the load of the solid oxide electrolysis cell stack decreases to the sixth percentage of the rated power, according to the variable load operation dynamic control strategy, the power of the anode gas heater is controlled to decrease to a fifth power value, and the power of the cathode gas heater is controlled to decrease to a sixth power value; according to the variable load operation dynamic control strategy and the load of the solid oxide electrolysis cell stack, the hydrogen circulation ratio is dynamically adjusted.

5. The method of claim 1, wherein, the target dynamic control strategy comprises a shutdown dynamic control strategy; the step of adjusting the operation parameters of each component in the target system where the solid oxide electrolysis cell stack is located according to the target dynamic control strategy comprises: when it is detected that the solid oxide electrolysis cell stack ends operation, according to the shutdown dynamic control strategy, the temperature of the solid oxide electrolysis cell stack is controlled to decrease smoothly at a ninth temperature rate, the current is controlled to decrease at a first current rate, the current air flow is controlled to decrease at a third flow rate, and the current water vapor flow is controlled to decrease at a fourth flow rate; according to the shutdown dynamic control strategy, the power of the anode gas heater is controlled to decrease, and the inlet air temperature is controlled to decrease at a tenth temperature rate; According to the shutdown dynamic control strategy, the power of the cathode gas heater is controlled to be reduced, and the inlet gas temperature is controlled to be reduced at an eleventh temperature rate. According to the shutdown dynamic control strategy and the current current drop value, the hydrogen circulation ratio is dynamically adjusted.

6. The method of any one of claims 1 to 5, wherein, The target system after the adjustment parameter includes a water flow controller, a water pump, an evaporator, a hydrogen pump, a mixer, a cathode heat exchanger, a cathode gas heater, a solid oxide electrolysis cell stack, and a condensation dryer. The target system after the adjustment parameter generates cathode side gas according to input water flow and input hydrogen, and stores the cathode side gas, including: After detecting that the input water flow passes through the water flow controller, the water pump transports the water flow to the evaporator, and heats and converts the input water flow in the evaporator, and transports the water vapor obtained by heating and conversion to the mixer; The hydrogen pump transports the input hydrogen to the mixer, and mixes the water vapor and the input hydrogen in the mixer; After detecting that the cathode heat exchanger and the cathode gas heater heat the mixed gas to a target temperature, the solid oxide electrolysis cell stack electrolyzes the heated gas to obtain cathode side gas; After detecting that the cathode side gas passes through the cathode heat exchanger to be cooled, the condensation dryer dries the cooled cathode side gas, and stores the dried cathode side gas.

7. A solid oxide electrolyser cell stack multi-scenario dynamic control system, characterized in that, Comprising: A determination module is configured to obtain a current scenario of a solid oxide electrolysis cell stack, and determine a target dynamic control strategy according to the current scenario; An adjustment module is configured to adjust the operation parameters of each component in a target system in which the solid oxide electrolysis cell stack is located according to the target dynamic control strategy; A generation module is configured to generate cathode side gas according to input water flow and input hydrogen based on the target system after the adjustment parameter, and store the cathode side gas; The generation module is further configured to generate anode side gas according to input air based on the target system after the adjustment parameter, and discharge the anode side gas.

8. An electronic device, comprising: Comprising: At least one memory for storing a computer program; At least one processor for executing the program stored in the memory, when the program stored in the memory is executed, the processor is configured to execute the method of any one of claims 1-6.

9. A computer-readable storage medium storing a computer program, the computer program comprising instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 8. When the computer program runs on the processor, the processor is caused to execute the method of any one of claims 1-6.

10. A computer program product, characterised in that, When the computer program product runs on the processor, the processor is caused to execute the method of any one of claims 1-6.

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