Wind power hydrogen production simulation system and method

Abstract

The application relates to a wind power hydrogen production simulation system and method. The wind power hydrogen production simulation system comprises an AC / DC conversion module, an input end of which is connected with an alternating current source; a DC / DC conversion module, an input end of which is connected with an output end of the AC / DC conversion module, and multiple output ends of the DC / DC conversion module are respectively used for being connected with hydrogen production electrolytic cells with different powers; and a controller, which is connected with a control end of the DC / DC conversion module, is used for acquiring simulated wind power output parameters, selecting at least one hydrogen production electrolytic cell matched with output power corresponding to the wind power output parameters, and adjusting power distribution of the DC / DC conversion module connected with the hydrogen production electrolytic cell. Thus, the wind power hydrogen production simulation system has output power dynamic distribution capability.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of renewable energy hydrogen production, in particular to a wind power hydrogen production simulation system and method. BACKGROUND

[0002] With the transformation of global energy structure to renewable energy, wind power has become an important part of the power system. However, the inherent intermittency and volatility of wind energy result in significant uncertainty in its power output. In order to achieve efficient consumption, wind power hydrogen production technology has emerged as the research focus. The electrolyzer is the core equipment of the wind power hydrogen production system, and its performance is highly dependent on the characteristics of the input power. Therefore, simulation methods are needed to test and optimize the electrolytic hydrogen production process to improve the matching degree of the system control strategy and the operation efficiency.

[0003] Currently, there are obvious limitations in the simulation and experiment of wind power hydrogen production systems: one method relies on pure algorithm simulation, which has a large gap with the actual running environment and insufficient reliability, although the cost is low; the other is based on real wind turbines, converters and electrolyzers to build a full physical platform, which consumes a lot of resources and has a very high cost, and the test conditions are limited by natural wind speed, which is difficult to control flexibly.

[0004] In addition, there is a lack of a wind power hydrogen production simulation system with multi-output and power dynamic distribution capability in the related art. SUMMARY

[0005] Therefore, it is necessary to provide a wind power hydrogen production simulation system and method with output power dynamic distribution capability for wind power hydrogen production simulation in view of the above technical problems.

[0006] In a first aspect, the present application provides a wind power hydrogen production simulation system, which comprises:

[0007] an AC / DC conversion module, an input end for connecting AC power;

[0008] a DC / DC conversion module, an input end connected to an output end of the AC / DC conversion module, and a plurality of output ends of the DC / DC conversion module respectively connected to different power hydrogen electrolyzers;

[0009] a controller connected to a control end of the DC / DC conversion module, configured to obtain a simulated wind power output parameter, select at least one hydrogen electrolyzer matched with an output power corresponding to the wind power output parameter, and adjust power distribution of the DC / DC conversion module connected to the hydrogen electrolyzer.

[0010] In one embodiment, the DC / DC conversion module comprises a plurality of DC / DC conversion modules;

[0011] The input end of each DC / DC conversion module is connected to the output end of the AC / DC conversion module.

[0012] The output end of each DC / DC conversion module is used for connecting a hydrogen production electrolytic cell with different power.

[0013] The controller is connected to the control end of each DC / DC conversion module, and the controller is used for distributing and adjusting the output power of each DC / DC conversion module according to the output power corresponding to the wind power output parameter.

[0014] In one embodiment, the controller is connected to the control end of the AC / DC conversion module.

[0015] The controller is used for controlling the output power of the AC / DC conversion module based on the wind power output parameter, so that the change parameter of the output power of the AC / DC conversion module with time is consistent with the wind power output parameter.

[0016] In one embodiment, the wind power hydrogen production simulation system further comprises:

[0017] The wind turbine simulation module is connected to the controller and is used for simulating the output of the wind power output parameter.

[0018] In one embodiment, the wind power hydrogen production simulation system further comprises:

[0019] The AC source is connected to the AC / DC conversion module and is used for providing input AC power.

[0020] In one embodiment, the controller is connected to the AC / DC conversion module.

[0021] The controller is used for controlling the output power of the plurality of output ends of the DC / DC conversion module based on the output power received from the AC / DC conversion module.

[0022] In a second aspect, the application further provides a wind power hydrogen production simulation method applied to the wind power hydrogen production simulation system as described above, and the method comprises:

[0023] Obtaining the simulated wind power output parameter, and selecting at least one hydrogen production electrolytic cell matched with the output power corresponding to the wind power output parameter;

[0024] Adjusting the power distribution of the DC / DC conversion module connected to the hydrogen production electrolytic cell.

[0025] In one embodiment, when the controller is connected to the control end of the AC / DC conversion module, the method comprises:

[0026] Based on the wind power output parameter, the output power of the AC / DC conversion module is controlled to make the change parameter of the output power of the AC / DC conversion module over time consistent with the wind power output parameter.

[0027] In one of the embodiments, the controller is connected with the AC / DC conversion module, and the method comprises:

[0028] Receiving the output power of the output end of the AC / DC conversion module;

[0029] Based on the output power of the AC / DC conversion module, the output power of the multiple output ends of the DC / DC conversion module is adjusted.

[0030] In one of the embodiments, the simulated wind power output parameter is obtained, comprising:

[0031] Obtaining the wind data input by the user, and determining the wind power output parameter according to the wind data;

[0032] And / or, receiving the wind power output parameter output by the wind turbine simulation module connected with the controller.

[0033] The wind power hydrogen production simulation system and method can realize the simulation of the AC power input of the wind power generation through the AC / DC conversion module to access the AC power and convert AC to DC, can realize the simulation of the DC power output of the wind power generation through the DC / DC conversion module to convert DC, and can realize the dynamic distribution and real-time adjustment of multiple power through the coordinated cooperation of the controller to control the simulation conversion of the modules, realize the parallel driving and accurate power distribution of a single wind power simulation source to multiple different power electrolytic cells, overcome the limitation that the traditional single output simulation device cannot simultaneously meet the test requirements of multiple electrolytic cells, solve the problem that the wind power hydrogen production simulation system in the prior art cannot adapt to the cooperation and power dynamic matching of multiple electrolytic cells, and thus the test efficiency and flexibility of the wind power hydrogen production simulation system can be greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 A structural schematic diagram of a wind power hydrogen production simulation system provided by the embodiments of the present application;

[0036] Figure 2A structural schematic diagram of a wind power hydrogen production simulation system with multiple DC / DC conversion modules is provided for the embodiments of the present application.

[0037] Figure 3 A specific connection structure schematic diagram of a wind power hydrogen production simulation system is provided for the embodiments of the present application.

[0038] Figure 4 A structural schematic diagram of a wind power hydrogen production simulation system with a wind turbine simulation module is provided for the embodiments of the present application.

[0039] Figure 5 A flowchart of a method for wind power hydrogen production simulation is provided for the embodiments of the present application.

[0040] Figure 6 A specific structural schematic diagram of a wind power hydrogen production simulation system is provided for the embodiments of the present application.

[0041] Reference signs:

[0042] 10-wind power hydrogen production simulation system; 110-alternating current source; 120-AC / DC conversion module; 130-DC / DC conversion module; 140-controller; 150-wind turbine simulation module; 20-hydrogen production electrolyzer; 131-DC / DC conversion module. DETAILED DESCRIPTION

[0043] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The drawings show embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0044] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing the specific embodiments and are not intended to limit the present application.

[0045] It can be understood that the terms "first", "second", etc. used in the present application can be used herein to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish the first element from another element.

[0046] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to another element or connected to another element through a central element. In addition, "connected" in the following embodiments should be understood as "electrically connected", "communicatively connected" and the like if there is transmission of electrical signals or data between the connected objects.

[0047] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", or the like, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

[0048] With the transformation of global energy structure and the high attention to renewable energy, wind power as a clean and sustainable form of energy is gradually becoming an important part of the power system. The intermittency and volatility of wind energy determine that its power output has great uncertainty. In order to realize the effective consumption of high proportion of wind power, wind power hydrogen production technology is proposed and widely studied.

[0049] In the wind power hydrogen production system, water electrolysis hydrogen production is the core link. The electrolytic tank as the key equipment of this link, its operation characteristics are greatly affected by input power, voltage, current and other parameters. In order to improve the performance matching of electrolytic tank, the optimization of system control strategy and the overall efficiency evaluation, it is usually necessary to simulate and test the wind power hydrogen production system.

[0050] The current wind power hydrogen production technology is not mature, and most of the scenes are simulated by algorithm simulation and simulation to speculate the wind power hydrogen production, which cannot simulate the characteristics of wind power generation and carry out electrolytic tank hydrogen production experiment. This pure algorithm simulation has a large gap with the actual use environment and has low reliability.

[0051] There are also some scenes that collect data and optimize control through real wind power hydrogen production equipment. This way needs to consume a lot of resources, such as wind turbine, wind power converter, hydrogen production power supply, electrolytic tank, etc., with high cost, and the power generation situation is related to wind power and not controlled.

[0052] Due to the difficulty of simulating the wind power hydrogen production environment, how to simulate the wind turbine power generation and hydrogen production verification is a difficult problem before large-scale engineering implementation. The present application is a multi-output wind power hydrogen production simulation system for simulating the output characteristics of wind farm and providing controllable power input for electrolytic tank, which is an important tool indispensable in the system development, testing and optimization process.

[0053] In addition, there is a lack of a wind power hydrogen production simulation system with multi-output and power dynamic distribution capability.

[0054] Based on the above reasons, the present application provides a wind power hydrogen production simulation system and method, so as to realize multi-power dynamic distribution and real-time adjustment, so that the wind power hydrogen production simulation system has output power dynamic distribution capability.

[0055] In one exemplary embodiment, Figure 1 This is a schematic diagram of a wind power hydrogen production simulation system provided in an embodiment of this application, as shown below. Figure 1 As shown, the wind power hydrogen production simulation system 10 includes: an AC / DC conversion module 120, a DC / DC conversion module 130, and a controller 140, wherein:

[0056] AC / DC conversion module 120, the input terminal is used to connect to AC power.

[0057] The AC / DC conversion module 120 can refer to an active rectifier or rectifier-filter circuit composed of fully controlled devices, which can be used to convert unstable AC power generated by an AC source into stable DC power, and can establish a DC bus to provide an energy source for subsequent DC / DC conversion.

[0058] The DC / DC conversion module 130 has its input terminal connected to the output terminal of the AC / DC conversion module 120. The multiple output terminals of the DC / DC conversion module 130 are used to connect to hydrogen electrolyzers 20 with different power ratings.

[0059] The DC / DC conversion module 130 can refer to an assembly containing multiple independent DC / DC conversion units. Each conversion unit has independent voltage, current and on / off control functions, which can be used to perform secondary conversion and distribution of the electrical energy of the DC bus to accurately adapt to the electrical parameter requirements of electrolytic cells with different rated power.

[0060] The controller 140 is connected to the control terminal of the DC / DC conversion module 130. It is used to acquire simulated wind power output parameters, select at least one hydrogen electrolyzer that matches the output power corresponding to the wind power output parameters, and adjust the power distribution of the DC / DC conversion module connected to the corresponding hydrogen electrolyzer.

[0061] The controller 140 can be a microprocessor unit (MCU) or digital signal processor (DSP) with a built-in power distribution algorithm. It can be used to collect system status parameters, store electrolytic cell power configuration information and generate PWM control signals to accurately manage the power flow direction and magnitude of each output channel.

[0062] Exemplarily, the input end of the AC / DC conversion module 120 can access current voltage, for example, can access alternating current from a power grid, can access alternating current from an alternating current generator, and can deliver analog wind power alternating current to the AC / DC conversion module 120. The output end of the AC / DC conversion module 120 can be connected to the total input end of the DC / DC conversion module 130, and stable direct current is delivered to the DC / DC conversion module 130. Each independent output end of the DC / DC conversion module 130 can be respectively connected to an electrolytic cell with a specific power. The controller 140 can be connected to the AC / DC conversion module 120 and the DC / DC conversion module 130, to convert alternating current into direct current, to realize alternating current-direct current power analog conversion, and to realize direct current power output simulation of the wind power hydrogen production simulation system through direct current power conversion. The output power of each DC / DC conversion module 130 can be monitored in real time, and the output voltage and current of each output end can be dynamically adjusted by combining a preset power distribution algorithm. The hydrogen production electrolytic cell that matches the wind power output parameter is selected, and a power distribution instruction is issued. For example, a closed loop correction can be realized by using a PID adjustment algorithm and a state feedback mechanism, to ensure that the power output of each channel is accurately matched with the demand of the electrolytic cell, so that the wind power hydrogen production simulation system with output power dynamic distribution capability can be realized.

[0063] Optionally, the communication bus of the controller 140 can be connected to the control interface of each DC / DC conversion module in the DC / DC conversion module 130, and the signal acquisition end thereof can be connected to the sensor of each key node of the system.

[0064] Optionally, the AC / DC conversion module 120 can adopt a three-phase full-bridge rectifier circuit to convert alternating current into direct current. The DC / DC conversion module 130 can include a plurality of Buck-Boost converters, and each converter corresponds to an output end. The controller 140 can adopt a digital signal processor (DSP) to communicate with the DC / DC conversion module 130 through a CAN bus.

[0065] In actual application, the AC / DC conversion module 120 can access alternating current through an alternating current input interface to convert alternating current energy into direct current energy. The input end of the DC / DC conversion module 130 is connected to the output end of the AC / DC conversion module 120, and can receive direct current energy. The controller 140 can be connected to the control end of the DC / DC conversion module 130 to realize dynamic power distribution through the following steps: the simulated wind power output parameters can be obtained through a communication interface, which can include real-time power, voltage fluctuation range, and change rate, etc. At least one target electrolyzer that is suitable for the current wind power output parameters is selected from multiple hydrogen production electrolyzers based on a preset power matching algorithm (such as capacity priority matching or efficiency optimal matching), and a power distribution scheme can be generated according to the rated power of the target electrolyzer and the current working condition. The voltage and current of the output end of the DC / DC conversion module connected to the target electrolyzer can be adjusted through a PWM control signal to make the target electrolyzer in a full-load operation state. At the same time, the matching degree of the output power and the demand of the electrolyzer can be monitored in real time through a state feedback channel. If the deviation exceeds a threshold value, a secondary adjustment can be triggered, so as to ensure that the target electrolyzer is always in a full-load operation state.

[0066] In the embodiment, by setting the DC / DC conversion module 130 with multiple independent output capabilities and coordinating the control of the central controller 140, parallel driving and accurate power distribution of multiple different power electrolyzers by a single wind power simulation source are realized, so that the test efficiency and flexibility of the simulation device can be greatly improved, and the limitation that the traditional single output simulation device cannot simultaneously meet the test demand of multiple electrolyzers is overcome.

[0067] In addition, by adjusting the input power of each electrolyzer in real time, the efficient operation of the electrolyzer under different wind speed conditions can be maintained, and the overall hydrogen production efficiency is improved. At the same time, the dynamic power distribution mechanism reduces the frequent start-stop of the electrolyzer caused by power mismatch, thereby prolonging the service life of the equipment. Power priority control of multiple electrolyzers can also be realized, and part of the hydrogen production capacity can still be maintained under low wind speed conditions, thereby improving the wind power consumption rate and the stability of hydrogen energy output.

[0068] In one exemplary embodiment, Figure 2 A structural schematic diagram of a wind power hydrogen production simulation system with multiple DC / DC conversion modules provided by the embodiment of the present application is shown in Figure 2 Based on Figure 1 , the specific structure of the wind power hydrogen production simulation system 10 can be further exemplarily described as follows:

[0069] The DC / DC conversion module 130 includes multiple DC / DC conversion modules 131.

[0070] The input end of each DC / DC conversion module 131 is connected to the output end of the AC / DC conversion module 120.

[0071] The output end of each DC / DC conversion module 131 is respectively used for connecting a hydrogen production electrolyzer 20 of different power.

[0072] The controller 140 is connected to the control end of each DC / DC conversion module 131, and the controller 140 is used for distributing and adjusting the output power of each DC / DC conversion module 131 according to the output power corresponding to the wind power output parameter.

[0073] The DC / DC conversion module 131 can be a Buck, Boost or Buck-Boost type direct current converter circuit, each module can be an independent power channel, can have independent software and hardware configuration, and can be personalized parameter setting according to the power level of the connected load.

[0074] Exemplarily, the unified direct current bus voltage output by the AC / DC conversion module 120 can be connected in parallel to the input end of each DC / DC conversion module 131. Each DC / DC conversion module 131 can independently convert the bus voltage into the required output voltage and current value by adjusting the duty cycle of its switching tube according to the rated voltage and current of the target electrolyzer corresponding to it. The controller 140 can send instructions to each DC / DC conversion module 131 through an independent communication link (such as CAN bus or PWM signal) to set its target output power.

[0075] Specifically, when the AC source 110 generates fluctuating AC power, the AC / DC conversion module 120 can convert it into stable DC power and deliver it to the parallel multiple DC / DC conversion modules 131. The controller 140 can send a voltage boosting instruction to the corresponding DC / DC conversion module 131 according to the preset electrolyzer power demand table, for example, detecting that the No. 3 electrolyzer needs to be boosted to 80% of the rated power. The DC / DC conversion module 131 can convert the input voltage into the output voltage matching the electrolyzer demand by adjusting the internal IGBT switching frequency. The power regulation between each DC / DC conversion module 131 can not interfere with each other, and when a certain electrolyzer is shut down, the corresponding DC / DC conversion module 131 can be completely closed to avoid no-load loss. In this way, the independent control architecture can make the total power be distributed in any proportion between different electrolyzers, for example, 20kW of AC / DC output is decomposed into 5kW, 8kW and 7kW to supply three electrolyzers respectively.

[0076] In practical applications, flexible control of multi-path power output can be realized. Thus, the output power of the corresponding DC / DC conversion module 131 can be adjusted according to different hydrogen production electrolyzers 20 with different power requirements, the power dynamic allocation capability of the wind power hydrogen production simulation system 10 can be improved, and thus the adaptability and flexibility of the wind power hydrogen production simulation system can be improved. At the same time, through the setting of multiple DC / DC conversion modules 131, multiple hydrogen production electrolyzers 20 with different powers can be powered at the same time, and the parallel processing capability and overall efficiency of the system are improved. In addition, the independent control of the controller 140 on each DC / DC conversion module 131 can enable the system to more accurately match the power requirements of each hydrogen production electrolyzer 20, and thus the energy utilization efficiency can be improved.

[0077] In the embodiment, a distributed and modular DC / DC conversion architecture is adopted, so that the system configuration is more flexible, easy to expand and maintain; at the same time, the independent control of each power channel avoids mutual interference, realizes precise and independent power supply for each electrolyzer, improves the power dynamic allocation capability, and meets the needs of complex test scenarios.

[0078] In an exemplary embodiment, Figure 3 A specific connection structure schematic diagram of a wind power hydrogen production simulation system 10 provided by the embodiment of the present application is shown in FIG. 1. Figure 3 As shown in FIG. 1, the specific connection of the wind power hydrogen production simulation system 10 can be further exemplarily illustrated based on the structure shown in FIG. 1, and the specific connection of the wind power hydrogen production simulation system 10 can be further exemplarily illustrated based on the structure shown in FIG. 1, wherein: Figure 1

[0079] The controller 140 is connected with the control end of the AC / DC conversion module 120.

[0080] The controller 140 is configured to control the output power of the AC / DC conversion module 120 based on the wind power output parameter of the alternating current source 110, so that the parameter of the change of the output power of the AC / DC conversion module with time is consistent with the wind power output parameter.

[0081] The wind power output parameter can be determined by real-time voltage, current, frequency and power value, and can reflect the strength change of the simulated wind energy. For example, the wind power output parameter can be the output parameter of the wind turbine simulation module.

[0082] Exemplarily, the controller 140 can obtain the real-time output power corresponding to the wind power output parameter. According to the power value, the controller 140 can dynamically adjust the output DC bus voltage or total power of the rectifier in the AC / DC conversion module 120 by adjusting the control strategy (such as phase control or PWM modulation) of the rectifier, so that the front-end input energy and the total load energy distributed by the back-end are kept in dynamic balance, and the energy utilization rate and operation stability of the whole system are improved.

[0083] ​Specifically, the simulated wind power output parameter can be input or transmitted to the controller 140, and the controller 140 can convert the wind power output parameter into a target output power value of the AC / DC conversion module 120 according to a preset algorithm. The power semiconductor device of the AC / DC conversion module 120 can adjust the conduction state according to the control signal, so that the rectified direct current power is consistent with the power generation characteristics of the simulated wind turbine. For example, when the output power in the simulated wind power output parameter suddenly increases, the controller 140 can avoid triggering the protection mechanism due to the input power exceeding the capacity of the DC / DC conversion module 130 by increasing the direct current voltage set value of the AC / DC conversion module 120. In this way, the output power of the AC / DC conversion module 120 can always match the dynamic characteristics of the wind power output parameter, providing an accurate simulated wind power output basis for subsequent power distribution of the multiple hydrogen production electrolysis cells 20.

[0084] For example, when the wind power output parameter shows that the wind speed increases, the controller 140 increases the output power of the AC / DC conversion module 120 accordingly; when the wind power output parameter shows that the wind speed decreases, the controller 140 decreases the output power of the AC / DC conversion module 120 accordingly. In this way, the output power of the AC / DC conversion module 120 can be dynamically adjusted according to the change of the wind power output.

[0085] In this embodiment, the output power of the AC / DC conversion module 120 is adjusted based on the real-time wind power output parameter, so that the output power of the AC / DC conversion module 120 is consistent with the actual power generation of the wind turbine generator. In this way, the simulation accuracy of the wind power hydrogen production simulation system 10 can be improved by dynamic adjustment, so that the simulation device can more realistically reflect the operating state of the actual wind power hydrogen production system. Moreover, by including the front-stage AC / DC conversion module 120 in the unified control loop, global coordination and optimization from wind energy simulation to direct current power output are realized, providing a stable and reliable power input for the subsequent DC / DC conversion and electrolytic hydrogen production process, ensuring that the hydrogen production simulation device can operate efficiently and stably under different simulated wind conditions, thereby improving the authenticity and accuracy of wind power hydrogen production simulation.

[0086] In one exemplary embodiment, Figure 4 A structural schematic diagram of a wind power hydrogen production simulation system with a wind turbine generator simulation module is provided for the embodiments of the present application; as Figure 4 shown, the structure of the wind power hydrogen production simulation system 10 can be further exemplarily illustrated based on Figure 1 , wherein the wind power hydrogen production simulation system can further include:

[0087] The wind turbine generator simulation module 150 is connected with the controller and is used for simulating output of the wind power output parameter.

[0088] The wind turbine simulation module 150 can be a programmable AC power supply device integrated with a wind speed simulation algorithm, which can include a rectifier-inverter circuit, an energy storage unit, and a microprocessor. The wind turbine simulation module 150 can dynamically adjust the frequency, amplitude, and phase of the output AC power according to a preset wind speed curve to reproduce the wind power output characteristics of a real wind turbine under different wind energy conditions and provide power input that meets the wind power fluctuation characteristics for the subsequent hydrogen production electrolysis process. The wind turbine simulation module 150 can be integrated with the controller 140 in the control system or can be a separate module from the controller 140, and the specific implementation form is not limited herein.

[0089] The wind turbine simulation module 150 can execute a wind speed-power conversion algorithm through the built-in microprocessor, receive externally input wind speed curve data or real-time wind speed instructions, calculate the target output power of the wind power output in combination with a wind turbine mathematical model (including tip speed ratio, power coefficient, and pitch angle adjustment characteristics), and dynamically adjust and correct the output wind power parameters, thereby accurately simulating the wind power output parameters under different wind speed conditions.

[0090] In this embodiment, the dynamic characteristic simulation of the wind turbine simulation module 150 enables the wind power hydrogen production simulation system to accurately reproduce the effects of the intermittency or fluctuation of wind energy on the real hydrogen production system and provides a reliable wind power input simulation source for the response characteristic test of the electrolytic cell under different wind power conditions.

[0091] In one exemplary embodiment, as shown in Figure 4 The wind power hydrogen production simulation system further includes:

[0092] The AC source 110 is connected to the AC / DC conversion module and is used to provide input AC power.

[0093] The AC source 110 can be a system for AC input, for example, the AC source 110 can be an AC power grid or an AC generator, which provides dynamic energy input for the wind power hydrogen production simulation system.

[0094] The AC source 110 can generate AC power.

[0095] The AC source 110 can provide AC power input for the wind power hydrogen production simulation system 10, which is used to provide a power source for the power conversion of the AC / DC conversion module 120. The controller 140 is used to control the AC conversion, for example, to realize stable conversion from AC to DC by adjusting the PWM duty cycle of the AC / DC conversion module, and is also used to control the DC conversion distribution, thereby realizing a wind power hydrogen production simulation system with dynamic power simulation and multi-electrolytic cell adaptation capability through the AC source 110.

[0096] In one exemplary embodiment, as shown inFigure 3 The controller 140 is connected to the output of the AC / DC conversion module 120.

[0097] The controller 140 is configured to control the output power of the multiple output terminals of the DC / DC conversion module 130 based on the output power detected from the AC / DC conversion module 120.

[0098] The output on-off state can refer to the on and off of the semiconductor switching devices (such as MOSFET, IGBT) in the output loop of each DC / DC conversion module 131 to turn on or turn off the power supply to the corresponding electrolytic cell.

[0099] For example, the controller 140 can monitor the total DC power output by the AC / DC conversion module 120 in real time. According to the total power and the preset power requirement of each electrolytic cell, the controller 140 can execute a power distribution logic algorithm to calculate the specific DC / DC output channel that should be activated at present, and send an open or close instruction to the corresponding DC / DC conversion module 131, so as to ensure that the sum of the power required by all the connected electrolytic cells does not exceed the total power that can be provided by the current wind power simulation, and to realize safe and reliable power management.

[0100] Specifically, the controller 140 can continuously monitor the output power of the AC / DC conversion module 120, and match and calculate the real-time power value with the rated power of each output terminal of the DC / DC conversion module 130. When the AC / DC output power changes, the controller 140 can dynamically adjust the on combination of the output terminals according to the current total power. For example, if the AC / DC output power decreases from 800W to 600W, the controller 140 can close the original 800W output terminal and enable two 300W output terminals to realize power matching. This process can ensure that the power distribution strictly corresponds to the actual AC / DC output through real-time feedback mechanism, avoid equipment damage caused by power mismatch, and improve the adaptability of simulated hydrogen production to wind power fluctuation conditions.

[0101] For example, the controller 140 can control the on-off time of the switching tube of each DC / DC conversion module 131 in the DC / DC conversion module 130 through PWM signal to adjust the output voltage and current of each output terminal, so as to realize accurate control of the power of each output terminal.

[0102] In this embodiment, the power distribution of each output end of the DC / DC conversion module 130 can be flexibly adjusted according to the actual output power of the AC / DC conversion module 120, thereby improving the adaptability and flexibility of the system. In addition, by controlling the on-off of the output ends of the DC / DC conversion module 130, different power levels of hydrogen production electrolyzers 20 can be selectively started and stopped according to actual needs, so that the hydrogen production electrolyzers 20 are in full load operation state, avoiding energy waste caused by low load operation, thereby improving the energy utilization efficiency of the entire wind power hydrogen production system. At the same time, by dynamically managing the on-off of the output channels based on the total available power, the system can be effectively prevented from collapsing and voltage dropping due to the total demand of the load exceeding the input supply, thereby enhancing the robustness and safety.

[0103] In one exemplary embodiment, the total output power of at least two output ends for outputting direct current in the DC / DC conversion module is dynamically matched with the total rated power of the hydrogen production electrolyzer. Specifically, the controller can collect the rated power parameters of each hydrogen production electrolyzer in real time, combine the total input power of the DC / DC conversion module, distribute the total power to each output end, calculate the target power of each output end through a preset dynamic distribution algorithm (such as capacity proportional distribution or priority distribution), generate a PWM control signal and issue it to the corresponding DC / DC conversion module, adjust the conduction duty cycle of the power device to change the output voltage and current, and at the same time, monitor the actual power and current of each output end in real time through the state feedback unit, use the PID regulation algorithm for closed-loop correction, ensure that the power deviation of each output end is controlled within the preset deviation threshold, and realize current sharing control and data interaction between modules through the CAN bus, so that each hydrogen production electrolyzer can be operated at full load under rated power.

[0104] In one exemplary embodiment, the total output power of at least two output ends for outputting direct current in the DC / DC conversion module is dynamically matched with the total rated power of the hydrogen production electrolyzer. Specifically, the controller can collect the rated power parameters of each hydrogen production electrolyzer in real time, combine the total input power of the DC / DC conversion module, distribute the total power to each output end, ensure the output power of each output end, and make each hydrogen production electrolyzer operate at full load under rated power.

[0105] In an exemplary embodiment, the total output power of at least two output terminals for outputting direct current in the DC / DC conversion module is dynamically matched with the total rated power of the hydrogen production electrolyzer, the controller can collect the rated power parameters of each hydrogen production electrolyzer in real time, combine the total input power of the DC / DC conversion module, and distribute the total power to each output terminal through a dynamic allocation algorithm based on capacity priority, while the PWM duty cycle can be corrected through a PID adjustment algorithm to ensure that the deviation of the actual power of each output terminal from the rated power of the electrolyzer is controlled within a preset threshold, so that each hydrogen production electrolyzer can be stably and fully loaded under the rated power.

[0106] For example, if the DC / DC conversion module includes three independent modules with output capacities of 1MW, 2MW and 3MW, and each corresponds to a hydrogen production electrolyzer with the same power level; when the simulated wind power output is less than 3MW, the controller can only start a single electrolyzer (such as 1MW or 2MW) that matches the current power; when the simulated wind power output is 5MW, the 2MW and 3MW electrolyzer combination output can be started simultaneously. Compared with the traditional single output simulator that needs to match a 5MW electrolyzer, the present scheme can avoid the efficiency loss caused by the idle electrolyzer under low power conditions, thereby improving the resource utilization rate of the wind power hydrogen production simulation system.

[0107] For example, when the wind condition is good and the AC / DC module output power is high, the controller can control multiple DC / DC conversion modules to work simultaneously, each module drives an electrolyzer, and the sum of the output powers of each module is equal to the output power of the AC / DC module. When the wind condition is poor and the AC / DC module output power is low, the controller can only enable one DC / DC conversion module to work, drive an electrolyzer with a smaller power demand, and the output power of the module is equal to the output power of the AC / DC module. Through this dynamic matching, the controller can ensure that the electrical energy can be effectively utilized under any wind condition, so that the working hydrogen production electrolyzer can be fully loaded.

[0108] In an exemplary embodiment, Figure 5 A flowchart of a method for simulating wind power hydrogen production provided by the embodiment of the present application is applied to the system as described above, as shown in the figure, Figure 5 The method comprises:

[0109] S501, obtaining a simulated wind power output parameter, and selecting at least one hydrogen production electrolyzer that matches the output power corresponding to the wind power output parameter;

[0110] S502, adjusting the power distribution of the DC / DC conversion module connected to the hydrogen production electrolyzer.

[0111] The wind power output parameter can be an electrical parameter reflecting the characteristics of wind energy output by the wind turbine simulation module, and can include real-time power, voltage amplitude, frequency, power fluctuation range and rate of change, and can be used to represent the electrical energy output characteristics of the simulated wind farm under different wind speed conditions. For example, the wind power output parameter can be a wind power output curve.

[0112] The matched hydrogen production electrolyzer can be an electrolyzer with a rated power range that matches the real-time power in the current wind power output parameter and can adapt to wind power fluctuations. Adjusting the power distribution can mean that the DC / DC conversion module adjusts the PWM duty cycle of each output power device under the instruction of the controller to change the voltage and current values of the corresponding output channels, realizes dynamic distribution of the total input power among multiple hydrogen production electrolyzers, and ensures that the deviation of the actual input power of each electrolyzer from its rated power does not exceed a preset threshold.

[0113] For example, the controller can obtain user-input wind power parameters, which can include basic parameters such as wind speed curve, rated power, cut-in and cut-out wind speed, and further perform power conversion calculation through a wind turbine mathematical model (including an aerodynamic model, a transmission chain model and a generator model), combined with a real-time weather correction coefficient, to obtain the wind power output parameter. The wind power output parameter can also be generated by a wind turbine simulation module, for example, the wind turbine simulation module can generate a simulated wind power output signal containing voltage fluctuation, frequency deviation and power ramping characteristics based on preset dynamic characteristic parameters such as turbulence intensity, wind speed fluctuation frequency and gust coefficient.

[0114] Select a hydrogen production electrolyzer that matches the output power of the wind power output parameter, and adjust the power distribution of the DC / DC conversion module connected to the hydrogen production electrolyzer.

[0115] For example, if the output power of the wind power output parameter is 5kW, the controller can select a hydrogen production electrolyzer with a rated power of 5kW and distribute 5kW of power to it through the corresponding output end of the DC / DC conversion module; it can also select multiple hydrogen production electrolyzers with a total rated power of 5kW and distribute power to each hydrogen production electrolyzer through the corresponding output end of the DC / DC conversion module, for example, it can select two hydrogen production electrolyzers with a rated power of 2.5kW, and the controller sends a power distribution instruction to the DC / DC conversion module to distribute 2.5kW of power to each output end. Each output end can control the output voltage and current by adjusting the PWM duty cycle, and the actual power of each electrolyzer can be monitored in real time by the state feedback unit.

[0116] For example, during the adjustment process, the IGBT switching frequency of each DC / DC module can be automatically adjusted according to the load change, so that the output voltage is stabilized in the set interval. When the total input power is insufficient, the low-priority output channel can be closed according to the preset priority algorithm to ensure continuous power supply for high-priority electrolytic cells. This process can be realized through multi-thread control.

[0117] In this embodiment, the target hydrogen production electrolytic cell with output power matching the wind power output parameter is selected through S501, and the power distribution of the DC / DC conversion module is dynamically adjusted through S502, so that the output power of the wind power output parameter is accurately matched with the electrolytic cell, and the power dynamic distribution capability of the wind power hydrogen production simulation system is enhanced, thereby improving the dynamic simulation output capability of the wind power hydrogen production simulation system and improving the flexibility of the output.

[0118] In an exemplary embodiment, when the controller is connected with the control end of the AC / DC conversion module, the method comprises:

[0119] Based on the wind power output parameter, the output power of the AC / DC conversion module is controlled so that the change parameter of the output power of the AC / DC conversion module with time is consistent with the wind power output parameter.

[0120] Wherein, the control of the output power of the AC / DC conversion module can be realized by adjusting the control signal strategy, so that the output DC bus voltage or total current changes with the change of the wind power output.

[0121] Exemplarily, the controller can calculate the real-time active power based on the obtained wind power output parameter. The controller takes this power value as a feedforward signal, generates a control instruction for the AC / DC conversion module through a specific control algorithm (such as PID control), so that the output DC power of the AC / DC conversion module can quickly track the change of the wind power simulation power, thereby reflecting the fluctuation of wind energy in real time on the DC bus.

[0122] Optionally, the controller can obtain the wind power output parameter of the wind turbine simulation module. The wind power output parameter can include wind speed, wind direction, wind turbine speed and other data. The controller calculates the corresponding wind turbine output power based on the obtained wind power output parameter. The controller can send a control instruction to the AC / DC conversion module to adjust the output voltage and current of the AC / DC conversion module, so that the output power matches the calculated wind turbine output power.

[0123] In this embodiment, the controller can dynamically adjust the output of the AC / DC conversion module according to the real-time wind condition data, so that the output characteristics of the simulation system are consistent with the actual wind turbine. The front-end management of wind energy fluctuation can be realized, and the subsequent power distribution is established on the basis of real and dynamic energy supply, thereby improving the simulation accuracy of the wind power hydrogen production simulation system.

[0124] In an exemplary embodiment, when the controller is connected with the AC / DC conversion module, the method comprises:

[0125] receiving output power of the output end of the AC / DC conversion module;

[0126] adjusting the output power of the multiple output ends of the DC / DC conversion module based on the output power of the AC / DC conversion module.

[0127] Wherein, the receiving of the output power can be the acquisition of the voltage and current values on the DC bus through voltage and current sensors, and the real-time power can be obtained after operation.

[0128] Exemplarily, the controller can periodically read the measurement values of the voltage and current sensors connected to the DC bus, and calculate the total power available at present. The controller can store a set of load switching logic (such as according to the priority of electrolytic cell or preset order) in it, can compare the total power available with the demand power of each electrolytic cell, decide which electrolytic cells to turn on and which electrolytic cells to turn off, and can send on-off instructions to the electronic switching devices in the DC / DC conversion module to realize the adjustment and distribution of the output power of the multiple output ends.

[0129] Optionally, when the output end of the AC / DC conversion module is connected to the controller, the DC bus voltage value and the output current value can be acquired in real time through the voltage sensor and the current sensor, and the output power can be obtained after operation. For example, when the output power of the AC / DC conversion module is detected to be 500kW, the controller can call the pre-stored rated power parameters of each output end of the DC / DC conversion module, such as the rated power of the first output end is 200kW, the rated power of the second output end is 300kW, and the rated power of the third output end is 500kW. According to the preset power matching logic, the third output end can be selected to be turned on to output 500kW power to the corresponding electrolytic cell; when the output power of the AC / DC conversion module is detected to decrease to 450kW, the controller can turn off the third output end, and at the same time, the first output end and the second output end can be activated to make the sum of the output powers of the two equal to 450kW. The on-off state of the output end can be controlled by the solid-state relay.

[0130] In this embodiment, through the accurate power detection and multi-output control logic, electrolytic cells of different power levels can obtain adaptive input electric energy, so that the wind power hydrogen production simulation system has the power dynamic distribution capability, the loads can be dynamically managed according to the real-time available energy, and the shutdown risk caused by overload can be prevented.

[0131] In an exemplary embodiment, the simulated wind power output parameters are obtained, comprising:

[0132] Obtaining the wind data input by the user, and simulating and determining the wind power output parameter according to the wind data;

[0133] And / or, receiving the wind power output parameter output by the wind turbine simulation module connected with the controller.

[0134] Wherein, the wind data can be a set of basic parameters for characterizing the wind energy characteristics, including wind speed, wind direction, turbulence intensity, wind speed change rate and gust coefficient, etc., for reflecting the wind energy input characteristics under different weather conditions, and providing original data support for simulating the wind power output parameter.

[0135] Exemplarily, the user can input the wind data to the controller, the controller can obtain the input wind data, and the wind data can be converted into corresponding electric power signals through the wind turbine mathematical model, and then the wind power output parameter containing real-time power, voltage fluctuation and frequency characteristics is simulated and generated.

[0136] And / or, the wind power output parameter output by the wind turbine simulation module connected with the controller can be received, which can be dynamically generated by the wind turbine simulation module according to the preset wind speed curve or real-time weather data, and contains electrical quantities such as voltage amplitude, frequency, active power and reactive power, and the controller can receive and analyze the parameter through CAN bus or Ethernet interface, as the basis for power distribution.

[0137] In this embodiment, the wind power output parameter acquisition method combining user input and module output can realize the flexibility and accuracy of wind energy characteristic simulation, which can not only convert the wind data into electric power signals conforming to the actual wind farm characteristics, but also directly receive the dynamic electrical parameters generated by the simulation module, providing a multi-dimensional simulation data basis for subsequent power distribution, so as to improve the adaptation ability and power control accuracy of the wind power hydrogen production simulation system to different test scenarios.

[0138] In some exemplary specific embodiments, in combination with the structure and control of the above-mentioned wind power hydrogen production simulation system, the wind power hydrogen production simulation system and method provided by the present application are exemplarily described, which can be used as the specific implementation mode of the present application, such as Figure 6 as shown in Figure 6 A specific structure diagram of a wind power hydrogen production simulation system provided by an embodiment of the present application, the wind power hydrogen production simulation system comprises the following modules:

[0139] Wind turbine simulation module: three-phase alternating current voltage input, providing input power for the whole system.

[0140] AC / DC conversion module: converting the input three-phase alternating current voltage into DC voltage, and all DC / DC conversion modules take power from this DC voltage.

[0141] DC / DC conversion module: includes multiple independent DC-DC conversion modules, each of which can independently adjust the output voltage and current to drive multiple electrolytic cells respectively.

[0142] Controller: can dynamically adjust the output of each DC / DC conversion module according to the power demand of the electrolytic cell, realize the reasonable distribution of power; real-time acquisition of voltage, current, power and other data of each module, support data analysis and storage, convenient for subsequent research and optimization; and according to the input wind speed, wind direction, fan parameters and other information, simulate the output fluctuation characteristics of the wind farm.

[0143] The wind power hydrogen production simulation system can be scheduled by the controller, which can provide multiple outputs, support multiple electrolytic cells to be powered and independently controlled at the same time, so as to improve the test efficiency, reduce the cost and enhance the system simulation capability. At the same time, it also supports simulating the wind power output curve of the wind turbine generator, dynamically adjusting the load of the electrolytic cell according to the curve, optimizing the scheduling strategy, improving the load duration ratio, combining with the specific wind speed probability distribution characteristics, carrying out wind-hydrogen collaborative optimization design, effectively smoothing the volatility of wind power, and improving the energy utilization efficiency. The specific implementation is as follows:

[0144] The controller inputs the simulated wind power output curve (i.e., wind power processing parameter): the wind power output curve can be a power output characteristic curve describing the wind turbine under different wind speed conditions. And the wind speed is related to the environment, time and other factors. Therefore, the curve is ultimately a time and power curve, which is used to simulate the fluctuation characteristics of the wind farm output.

[0145] The controller controls the output power of the AC / DC module according to the wind power output curve, so that the relationship between its output power and time is consistent with the curve.

[0146] The controller adjusts the output power of the DC / DC module according to the current power, so that the electrolytic cell driven by it runs in the best efficiency interval, avoiding inefficient operation or frequent start-stop.

[0147] The efficiency and output hydrogen quantity of the electrolytic cell are closely related to the input power. The electrolytic cell can only run efficiently when it reaches a certain power, usually in the medium and high power interval, and the electrolytic cell power regulation response is slow, which is not suitable for frequent adjustment. In order to improve the load duration ratio of the electrolytic cell and match the volatility of wind power, a multi-time scale adjustment strategy is adopted for power scheduling. The specific implementation is as follows:

[0148] Short term: when the short-term power fluctuates at the hour level, the output power of the wind power fluctuates slightly at this time, and the controller adjusts the output power of each DC / DC in real time to match the wind power output.

[0149] Medium term: The medium-term power fluctuates with daily fluctuations, and the output power of wind power fluctuates greatly at this time. Since the power regulation response of the electrolytic cell is slow, it is not suitable for frequent adjustment. Therefore, according to the daily wind power output power fluctuation, combined with wind speed prediction and load demand, an operation plan can be made to maximize the efficiency of the electrolytic cell hydrogen production.

[0150] For example, the output capacity of several DC / DC modules of the wind power hydrogen production simulation system is 1MW, 2MW, and 3MW respectively, corresponding to the electrolytic cells connected to the corresponding power level. If the daily wind power output power simulation is less than 3MW, only the corresponding power electrolytic cell can be started; if the daily wind power output power simulation is 5MW, the 2MW and 3MW electrolytic cells can be started at the same time. If the original single output wind power hydrogen production simulation system is used, only the 5MW electrolytic cell can be started, which will result in low hydrogen production efficiency when the wind power output power is low.

[0151] Long term: The wind power output power difference is very large at different times and seasons, and the wind speed distribution and power grid demand can be used to optimize the electrolytic cell capacity configuration and reasonably set the output characteristics of each DC / DC output module.

[0152] Optionally, the wind power hydrogen production simulation system can output multiple DC voltages to multiple electrolytic cells, and the voltage and current of each path can be independently adjusted without interference. The load matching and power distribution strategy of multiple outputs can be realized, and multiple electrolytic cells can be supported for parallel, independent or collaborative power supply. The control system can be used to centrally control and coordinate multiple DC-DC modules to simulate the fluctuation characteristics of wind farm output and provide adjustable and independently controlled power input for multiple electrolytic cells. A multi-time scale scheduling strategy can be used to improve the load duration ratio of the electrolytic cell and match the volatility of wind power.

[0153] In practical applications, the limitations of the traditional single output of the wind power hydrogen production simulation system are broken, and the practicality and testing ability of the simulator are significantly improved.

[0154] In this embodiment, the wind power hydrogen production simulation system and method provided by the application can have multiple output capabilities: supporting simultaneous power supply to multiple electrolytic cells, simulating the scenario of multiple loads running in parallel in a real wind power hydrogen production system, and improving the accuracy and comprehensiveness of the test. Modular design is realized: each DC-DC module can work independently or cooperatively, supporting flexible configuration and rapid expansion to meet different scale and type experimental requirements. High-precision control is realized: the main control system can accurately adjust the output of each DC-DC module to realize independent control and load matching of each electrolytic cell. Cost-effective: compared with the traditional way of using multiple independent devices, the application greatly reduces the purchase and maintenance cost of test equipment and improves the resource utilization rate.

[0155] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are shown in sequence according to the arrows, the steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of the steps is not strictly limited in order, and the steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the above-described embodiments can include multiple steps or multiple stages, which are not necessarily executed at the same time, but can be executed at different times, and the execution order of the steps or stages is not necessarily sequential, but can be executed alternately or alternately with at least part of other steps or steps or stages in other steps.

[0156] In an exemplary embodiment, a controller is provided, comprising a memory and a processor, the memory storing a computer program, and the processor implementing the following steps when executing the computer program:

[0157] Obtaining power information of each hydrogen production electrolyzer.

[0158] According to the power information of each hydrogen production electrolyzer, controlling the DC / DC conversion module to adjust the output power of the output end connected to each hydrogen production electrolyzer.

[0159] In an exemplary embodiment, when the controller is connected to the control end of the AC / DC conversion module, the processor executing the computer program further implements the following steps:

[0160] Obtaining simulated wind power output parameters, and selecting at least one hydrogen production electrolyzer matched with the output power corresponding to the wind power output parameters;

[0161] Adjusting the power distribution of the DC / DC conversion module connected to the hydrogen production electrolyzer.

[0162] In an exemplary embodiment, when the controller is connected to the output end of the AC / DC conversion module, the processor executing the computer program further implements the following steps:

[0163] Based on the wind power output parameters, controlling the output power of the AC / DC conversion module so that the time-varying parameter of the output power of the AC / DC conversion module is consistent with the wind power output parameters.

[0164] In an exemplary embodiment, when the controller is connected to the AC / DC conversion module, the processor executing the computer program further implements the following steps:

[0165] Receiving the output power of the output end of the AC / DC conversion module;

[0166] Adjust the output power of the plurality of output terminals of the DC / DC conversion module based on the output power of the AC / DC conversion module.

[0167] In one example embodiment, the processor, when executing the computer program, also implements the following steps:

[0168] Obtaining wind data input by a user, and simulating to determine wind power output parameters according to the wind data;

[0169] And / or, receiving wind power output parameters output by a wind turbine simulation module connected with the controller.

[0170] In one example embodiment, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program, and the computer program, when executed by a processor, implements the steps of the above method.

[0171] A person of ordinary skill in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by a computer program instructing related hardware, and the computer program can be stored in a non-volatile computer readable storage medium. When the computer program is executed, the computer program can include the processes of the above-mentioned embodiments of the method. Any reference to memory, storage, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. The non-volatile memory can include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. The volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory. As an illustration but not limitation, the RAM can be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM), etc.

[0172] In the description of the present specification, the description of the terms "actual application", "specific embodiment", "optionally" and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.

[0173] The technical features of the above embodiments can be combined in any way. In order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present specification.

[0174] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a more specific and detailed manner, but should not be construed as limiting the scope of the patent. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A wind power hydrogen production simulation system, characterized in that, The wind power hydrogen production simulation system comprises: An AC / DC conversion module, an input end of the AC / DC being used for accessing alternating current; A DC / DC conversion module, an input end of the DC / DC conversion module being connected to an output end of the AC / DC conversion module, and a plurality of output ends of the DC / DC conversion module being respectively used for connecting hydrogen production electrolytic cells with different powers; A controller, a control end of the DC / DC conversion module being connected to the controller, the controller being used for acquiring a simulated wind power output parameter, selecting at least one hydrogen production electrolytic cell matched with an output power corresponding to the wind power output parameter, and adjusting power distribution of the DC / DC conversion module connected to the hydrogen production electrolytic cell; The controller is connected to a control end of the AC / DC conversion module; The controller is used for controlling output power of the AC / DC conversion module based on the wind power output parameter, so that a change parameter of the output power of the AC / DC conversion module with time is consistent with the wind power output parameter; The wind power hydrogen production simulation system further comprises: An alternating current source, connected to the AC / DC conversion module, used for providing input alternating current energy; the alternating current source is an alternating current power grid or an alternating current generator; The DC / DC conversion module comprises a plurality of DC / DC conversion modules; When the wind condition is good and the output power of the AC / DC module is relatively high, the controller controls a plurality of the DC / DC conversion modules to work simultaneously, each of the DC / DC conversion modules drives a hydrogen production electrolytic cell, and the sum of the output powers of the DC / DC conversion modules is equal to the output power of the AC / DC module; when the wind condition is poor and the output power of the AC / DC module is relatively low, the controller enables one of the DC / DC conversion modules to work and drive a hydrogen production electrolytic cell with a relatively small power demand, and the output power of the DC / DC conversion module is equal to the output power of the AC / DC module, so that each hydrogen production electrolytic cell is in full-load operation at a rated power; The controller is further configured to: monitor the matching degree of the output power and the electrolytic cell demand in real time through a state feedback channel, and trigger secondary adjustment if the deviation exceeds a threshold value, so that the electrolytic cell is always in full-load operation; The controller is further configured to: acquire wind power data input by a user, simulate and determine the wind power output parameter according to the wind power data, and / or receive a wind power output parameter output by a wind turbine simulation module connected to the controller.

2. The wind-to-hydrogen simulation system of claim 1, wherein, An input end of each of the DC / DC conversion modules is connected to an output end of the AC / DC conversion module; An output end of each of the DC / DC conversion modules is used for connecting a hydrogen production electrolytic cell with different power; A control end of each of the DC / DC conversion modules is connected to the controller, and the controller is used for distributing and adjusting the output power of each of the DC / DC conversion modules according to the output power corresponding to the wind power output parameter.

3. The wind-to-hydrogen simulation system of claim 1, wherein, The wind power hydrogen production simulation system further comprises: A wind turbine simulation module, connected to the controller, used for simulating and outputting the wind power output parameter.

4. The wind-to-hydrogen simulation system of claim 1, wherein, The controller is connected to the AC / DC conversion module; The controller is configured to control the output power of the plurality of output terminals of the DC / DC conversion module based on the output power received from the AC / DC conversion module.

5. A method of wind-to-hydrogen simulation, characterized in that, The method is applied to the wind power hydrogen production simulation system according to any one of claims 1-4, and the method comprises: obtaining a simulated wind power output parameter, and selecting at least one target hydrogen production electrolyzer matched with the output power corresponding to the wind power output parameter; adjusting the power distribution of the DC / DC conversion module connected to the target hydrogen production electrolyzer; wherein the obtaining of the simulated wind power output parameter comprises: obtaining wind power data input by a user, and simulating the wind power output parameter according to the wind power data; and / or, receiving a wind power output parameter output by a wind turbine simulation module connected to the controller.

6. The method of claim 5, wherein, When the controller is connected to the control end of the AC / DC conversion module, the method comprises: controlling the output power of the AC / DC conversion module based on the wind power output parameter, so that the change parameter of the output power of the AC / DC conversion module with time is consistent with the wind power output parameter.

7. The method of claim 6, wherein, When the controller is connected to the AC / DC conversion module, the method comprises: receiving the output power of the AC / DC conversion module; adjusting the output power of the plurality of output terminals of the DC / DC conversion module based on the output power of the AC / DC conversion module.

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