Wind power hydrogen production simulation system and method

Abstract

The invention relates to a wind power hydrogen production simulation system and method. The wind power hydrogen production simulation system comprises at least two wind power hydrogen production simulation devices which are arranged in parallel; wherein the input end of each wind power hydrogen production simulation device is used for accessing alternating current, the output ends of the wind power hydrogen production simulation devices are mutually connected in groups, and the groups are respectively used for being jointly connected to the hydrogen production electrolytic bath corresponding to each group; the central control device is in communication connection with each wind power hydrogen production simulation device; the central control device is used for providing the same wind power simulation parameters for all the wind power hydrogen production simulation devices and coordinating the output power of all the wind power hydrogen production simulation devices according to the working mode of the hydrogen production electrolytic cell so as to test the corresponding working result under the input power corresponding to the wind power simulation parameters when at least one hydrogen production electrolytic cell is in the working mode. According to the structure and the method, the function rate expansibility of wind power system simulation can be improved.

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 towards clean and low-carbon, the large-scale application of wind power as an important form of renewable energy continues to expand. However, the inherent intermittency and volatility of wind energy result in the uncertainty of its output. In order to achieve efficient consumption, wind power hydrogen production technology has become a key development direction. In this field, a wind power hydrogen production simulator is used to simulate the power output of a wind farm and the behavior of a water electrolysis hydrogen production device, in order to support system control strategy verification and performance evaluation.

[0003] At present, such simulators are customized based on a specific electrolytic tank power level, and at least have the problems of fixed power level and poor scalability. SUMMARY

[0004] Therefore, it is necessary to provide a wind power hydrogen production simulation system and method capable of improving the power scalability of wind power simulation in view of the above technical problems.

[0005] In a first aspect, the present application provides a wind power hydrogen production simulation system, comprising: at least two wind power hydrogen production simulation devices, each wind power hydrogen production simulation device being connected in parallel; wherein the input end of each wind power hydrogen production simulation device is used to access alternating current, the output ends of each wind power hydrogen production simulation device are connected in groups and connected to each other, and each group connection is used to be connected to a corresponding hydrogen production electrolytic tank. a central control device, which is in communication connection with each wind power hydrogen production simulation device; the central control device is used to send the same wind power simulation parameters to each wind power hydrogen production simulation device, and to coordinate the output power of the wind power hydrogen production simulation devices connected by each output end group connection according to the working mode of at least one hydrogen production electrolytic tank, so as to test the corresponding working result of at least one hydrogen production electrolytic tank under the input power corresponding to the wind power simulation parameters when the hydrogen production electrolytic tank is in the working mode.

[0006] In one embodiment, the wind power hydrogen production simulation system comprises: an AC / DC conversion module, the input end of the AC / DC conversion module being connected with an AC source, and being used to convert the AC power output by the AC source into DC power; a control module, which is in communication connection with the central control device, and is used to receive the wind power simulation parameters issued by the central control device, and to adjust the output power of the AC / DC conversion module according to the power distribution instruction of the central control device, so as to realize the power expansion and distribution when the plurality of wind power hydrogen production simulation devices are connected in parallel.

[0007] In one of the embodiments, the AC / DC conversion module comprises: an AC / DC conversion unit, an input end of which is connected with the AC power source, for converting the AC power output by the AC power source into DC power; a DC / DC conversion unit, an input end of which is connected with an output end of the AC / DC conversion unit, and an output end of the DC / DC conversion unit is used for connecting the hydrogen production electrolyzer, for voltage conversion and power regulation of the DC power according to the power distribution instruction of the control module, to realize dynamic distribution of output power in parallel operation of the multi-wind-power hydrogen production simulation device.

[0008] In one of the embodiments, the control module comprises: a communication unit, connected with the central control device, for receiving the power distribution instruction sent by the central control device; a power regulation unit, connected with the communication unit, for adjusting the output voltage and current of the AC / DC conversion module according to the power distribution instruction; a state feedback unit, connected with the power regulation unit, for feeding back the real-time operation state information of the wind-power hydrogen production simulation device to the power regulation unit, so as to balance the output current of the current wind-power hydrogen production simulation device with other wind-power hydrogen production simulation devices.

[0009] In one of the embodiments, the wind-power hydrogen production simulation system further comprises: a data acquisition module, connected with the output end of each wind-power hydrogen production simulation device, for acquiring real-time working parameters of the hydrogen production electrolyzer; a power monitoring module, connected with the central control device, for monitoring the output power of each wind-power hydrogen production simulation device, and sending the monitoring result to the central control device to realize dynamic power coordination.

[0010] In one of the embodiments, the wind-power hydrogen production simulation system further comprises: a fault protection module, in communication connection with the central control device, for monitoring the output parameters of the AC power source; The fault protection module is used for triggering overload protection or short-circuit protection mechanism when it is detected that the output parameters exceed the preset safety threshold, and sending a fault state signal to the central control device, so that the central control device coordinates each wind-power hydrogen production simulation device to reduce the output power or stop operation.

[0011] In a second aspect, the application provides a wind-power hydrogen production simulation method applied to the wind-power hydrogen production simulation system, which comprises: issuing the same wind power simulation parameters to each wind-power hydrogen production simulation device, and determining the working mode corresponding to at least one hydrogen production electrolyzer; According to the working mode of the hydrogen production electrolyzer, the output power of each output terminal group connected wind power hydrogen production simulation device is coordinated to test the corresponding working result of at least one hydrogen production electrolyzer in the working mode under the input power corresponding to the wind power simulation parameter.

[0012] In one of the embodiments, the method further comprises: collecting real-time working parameters of the hydrogen production electrolyzer; monitoring the output power of each wind power hydrogen production simulation device; adjusting the power distribution instruction of each wind power hydrogen production simulation device according to the real-time working parameters and the output power of each wind power hydrogen production simulation device.

[0013] In one of the embodiments, when the wind power hydrogen production simulation device comprises a control module and an AC / DC conversion module, coordinating the output power of each wind power hydrogen production simulation device comprises: sending the power distribution instruction to the control module according to the working mode of the hydrogen production electrolyzer; the control module is configured to adjust the output power of the AC / DC conversion module according to the power distribution instruction to realize power expansion and distribution when multiple wind power hydrogen production simulation devices are operated in parallel.

[0014] In one of the embodiments, when the control module comprises a communication unit, a power adjustment unit and a state feedback unit, the method further comprises: sending the power distribution instruction to the communication unit of the control module, and the communication unit is configured to transmit the power distribution instruction to the power adjustment unit; the power adjustment unit is configured to adjust the output voltage and current of the AC / DC conversion module according to the power distribution instruction, and is further configured to balance the output current of the current wind power hydrogen production simulation device with other wind power hydrogen production simulation devices according to the real-time running state information of the wind power hydrogen production simulation device fed back by the state feedback unit.

[0015] The wind power hydrogen production simulation system and method can realize multi-path AC / DC power conversion, multi-path power conversion after AC / DC power conversion, and parallel output of multi-path power through multiple parallel wind power hydrogen production simulation devices. Through the central control device, dynamic coordinated output power control of multiple wind power hydrogen production simulation devices in parallel is realized, the power parallel output is adjusted to meet the power requirements of various hydrogen production electrolyzers, thereby achieving flexible expansion of power levels, meeting different power test scenarios and future system expansion requirements, and reducing repeated development costs and cycles. The parallel coordinated test of multiple wind power hydrogen production simulation devices can also improve the verification or simulation efficiency of large-scale real wind power hydrogen production systems. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 A structural schematic diagram of a wind power hydrogen production simulation system provided by the embodiments of the present application is shown in the figure. Figure 2 An exemplary structural schematic diagram of a wind power hydrogen production simulation device provided by the embodiments of the present application is shown in the figure. Figure 3 An exemplary structural schematic diagram of an AC / DC conversion module provided by the embodiments of the present application is shown in the figure. Figure 4 A flowchart of a method for wind power hydrogen production simulation provided by the embodiments of the present application is shown in the figure. Figure 5 A specific structural schematic diagram of a wind power hydrogen production simulation system provided by the embodiments of the present application is shown in the figure. Figure 6 A specific structural schematic diagram of a wind power hydrogen production simulation system provided by the embodiments of the present application is shown in the figure.

[0018] Reference signs: 10-wind power hydrogen production simulation system; 110-AC source; 120-wind power hydrogen production simulation device; 130-central control device; 140-data acquisition module; 150-power monitoring module; 20-hydrogen production electrolyzer; 121-AC / DC conversion module; 122-control module; 121a-AC / DC conversion unit; 121b-DC / DC conversion unit. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The embodiments of the present application are shown in the drawings. However, the present application can be realized 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.

[0020] 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 are only for the purpose of describing specific embodiments and are not intended to limit the present application.

[0021] It can be understood that the terms "first", "second", and the like 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.

[0022] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through a central element. In addition, "connected" in the following embodiments should be understood as "electrically connected", "communicatively connected", etc. if there is transmission of electrical signals or data between the connected objects.

[0023] As used herein, the singular forms "a", "an" and "the" can also include plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "comprise / contain" or "have" or the like specify the presence of stated features, integers, steps, operations, components, parts or combinations thereof, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, parts or combinations thereof.

[0024] With the transformation of global energy structure towards clean and low-carbon, the large-scale application of wind power as an important form of renewable energy continues to expand. However, the intermittency and volatility inherent in wind energy result in uncertainty in its output, and to achieve efficient consumption, wind-to-hydrogen technology has become a key development direction. In this field, wind-to-hydrogen simulators are used to simulate the power output of wind farms and the behavior of water electrolysis hydrogen production equipment to support system control strategy verification and performance evaluation.

[0025] Currently, such simulators are customized based on specific electrolyzer power levels, which have the problems of fixed power levels and insufficient expansion capabilities. They cannot adapt to different power testing scenarios or future system expansion needs, resulting in high repeated development costs and long cycles. At the same time, existing devices cannot achieve parallel testing of multiple machines, limiting their verification capabilities for large-scale hydrogen production systems; and when testing at low power, hardware resources are idle, resulting in low overall flexibility and resource utilization.

[0026] Therefore, the wind-to-hydrogen simulation system at least has the problems of fixed power level and poor expandability.

[0027] Based on the above reasons, the present application provides a wind-to-hydrogen simulation system and method capable of improving the expandability of wind-to-hydrogen simulation.

[0028] In one exemplary embodiment, Figure 1 A structural schematic diagram of a wind-to-hydrogen simulation system provided by an embodiment of the present application is shown in Figure 1As shown, the wind power hydrogen production simulation system 10 comprises: wind power hydrogen production simulation devices 120, a central control device 130, wherein: At least two wind power hydrogen production simulation devices 120, each wind power hydrogen production simulation device is connected in parallel.

[0029] Wherein, the input end of each wind power hydrogen production simulation device 120 is used to access alternating current, the output end of each wind power hydrogen production simulation device 120 is connected in groups, and each group connection is used to be connected to the corresponding hydrogen production electrolytic cell 20 of each group.

[0030] Optionally, the wind power hydrogen production simulation devices 120 connected in parallel can be a group of power conversion units with the same topology, and the output capacity can be stacked by parallel connection, which can be used to meet the power supply demand of high-power electrolytic cells. The output end of the wind power hydrogen production simulation device is connected in groups, which can be divided into different groups according to the preset number or power level, and the output ends in the same group are electrically connected in parallel through busbars, and different groups are independently connected to the corresponding hydrogen production electrolytic cell. Specifically, the number of wind power hydrogen production simulation devices in each group can be flexibly configured according to the power demand of the hydrogen production electrolytic cell, and the output current can be stacked and the power can be synthesized by grouping and parallel connection, and at the same time, the difference power regulation can be realized between groups through independent control link to adapt to the simulation power supply demand of hydrogen production electrolytic cell in different types or different working modes.

[0031] The central control device 130 is in communication connection with each wind power hydrogen production simulation device 120; the central control device 130 is used to send the same wind power simulation parameters to each wind power hydrogen production simulation device, and according to the working mode of at least one hydrogen production electrolytic cell 20, the output power of each wind power hydrogen production simulation device 120 connected in groups is coordinated to test the corresponding working result of at least one hydrogen production electrolytic cell 20 under the input power corresponding to the wind power simulation parameter when the working mode is in the working mode.

[0032] Wherein, the central control device 130 can be a computing device with centralized monitoring and coordinated control function, which can be used to uniformly issue power distribution instructions and manage the collaborative operation of multiple parallel units.

[0033] The wind power simulation parameter can be a set of key parameters for characterizing the output characteristics of the wind turbine, which can specifically include simulated wind speed, voltage fluctuation range, frequency variation parameter, power ramp rate and turbulence intensity, etc. For example, the wind power simulation parameter can be a wind power simulation curve.

[0034] Exemplarily, the output bus of the alternating current source 110 can be connected to the input port of each wind-to-hydrogen simulation device 120 through parallel branch lines at the same time, forming a distributed power distribution network to ensure that each device obtains synchronous alternating current input. The direct current output end of each wind-to-hydrogen simulation device 120 can be electrically connected in parallel through a busbar to collectively form a direct current power supply system of the hydrogen production electrolyzer 20, realizing superposition and power synthesis of output current. The central control device 130 can establish a bidirectional data interaction link with each wind-to-hydrogen simulation device 120 through a communication bus (such as CAN, 485 communication or Modbus), and can use a master-slave control architecture to realize instruction issuing and state feedback, ensuring the cooperation and consistency of multiple devices during operation.

[0035] Optionally, in the wind-to-hydrogen simulation system 10, each wind-to-hydrogen simulation device 120 can be a module, which can be independently operated and also supports parallel operation of multiple modules, thereby realizing flexible configuration and expansion of output power; the central control device 130 can be used to perform power distribution and coordinated control on the parallel wind-to-hydrogen simulation devices 120, to ensure that the power output by each wind-to-hydrogen simulation device 120 is matched and the current is balanced, avoiding circulating current and imbalance; the wind-to-hydrogen simulation device 120 can be configured in combination for hydrogen production electrolyzers 20 of different power levels, to adapt to various application scenarios from small laboratory tests to large engineering prototypes.

[0036] For example, the wind-to-hydrogen simulation device can be freely combined in modules according to test requirements, and divided into several independent groups according to power levels or electrolyzer types, each group can be controlled by the central control device 130, and different types of hydrogen production electrolyzers (such as PEM electrolyzers and alkaline electrolyzers) can also be driven at the same time to realize parallel testing in multiple scenarios. In specific applications, 2-4 wind-to-hydrogen simulation devices 120 can be configured in each group, to meet the differentiated power requirements of 100kW-level PEM electrolyzers and 500kW-level alkaline electrolyzers, and to realize independent adjustment of output voltage and current of each group through a CAN bus, supporting simultaneous verification of the response characteristics of different electrolyzers to fluctuating wind power input in a laboratory environment, or comparison of hydrogen production efficiency and energy consumption indicators of different technical routes, thereby improving the flexibility and research and development efficiency of wind-to-hydrogen testing.

[0037] In actual applications, by grouping and parallel connection, the hydrogen production electrolyzer 20 connected independently in each group can be tested to test the operating characteristics of the hydrogen production electrolyzer 20 under different direct current input power conditions at its rated power.

[0038] In this embodiment, a flexible power output system is constructed through the modular parallel design of multiple wind power hydrogen production simulation devices 120. The system capacity can be dynamically adjusted by increasing or decreasing the number of parallel devices according to the actual power demand of the hydrogen production electrolyzer 20, so as to adapt to different specifications of the electrolyzer test scene. In this way, not only the adaptability of the system to diversified application requirements is enhanced, but also the utilization efficiency of equipment resources is improved, providing a more flexible and practical simulation platform for the research and testing of the wind power hydrogen production system.

[0039] In one exemplary embodiment, Figure 2 An exemplary structural schematic diagram of a wind power hydrogen production simulation device provided in the embodiment of the present application is shown in Figure 2 As shown, the specific structure of the wind power hydrogen production simulation system 10 can be further exemplarily described on the basis of Figure 1 The wind power hydrogen production simulation device 120 comprises: An AC / DC conversion module 121, the input end of the AC / DC conversion module 121 is connected with the AC source 110, for converting the AC power output by the AC source 110 into DC power.

[0040] A control module 122, the control module 122 is in communication connection with the central control device 130, for receiving the wind power simulation parameters issued by the central control device, and adjusting the output power of the AC / DC conversion module 121 according to the power distribution instructions of the central control device 130, so as to realize the power expansion and distribution when multiple wind power hydrogen production simulation devices 120 are operated in parallel.

[0041] The AC / DC conversion module 121 can be an AC / DC converter using full-bridge rectification or PWM rectification technology, which can be used to convert unstable AC power output by the AC source 110 into stable DC power. The control module 122 can be an embedded controller with a communication interface, which can be used to receive upper-level instructions and realize accurate control of the local power unit.

[0042] Exemplarily, the AC input end of the AC / DC conversion module 121 can be electrically connected with the AC source 110 through a circuit breaker with overload protection function, and the DC output end can be connected with the DC bus system through a busbar to realize the collection and distribution of electric energy. The control module 122 can establish a data interaction channel with the central control device 130 through an optoelectronic isolation type communication interface, and can be connected with the power device driving circuit inside the AC / DC conversion module 121 through a PWM control signal to form a closed-loop control loop.

[0043] Optionally, in the wind power hydrogen production simulation system 10, the upper layer can make decisions on output mode, output voltage, current, power and other electrical characteristics through the central control device 130; the middle layer control can coordinate the current sharing and phase synchronization of the AC / DC conversion unit 121a and the DC / DC conversion unit 121b between modules through the control module 122 in each wind power hydrogen production simulation device 120 through master-slave control. The bottom layer control hardware can drive the execution of PWM modulation and protection.

[0044] In this embodiment, by dividing the wind power hydrogen production simulation device 120 into an AC / DC conversion module 121 and a control module 122, the standardization design of the power conversion unit is realized, which not only simplifies the expansion process of the system under different power levels, but also facilitates the quick replacement and maintenance of the faulty unit. At the same time, the distributed control architecture combining local control of the control module 122 and global coordination of the central control device 130 can reduce the communication delay and single-point failure risk brought by centralized control, effectively improving the operation reliability and dynamic response speed of the entire system.

[0045] In one exemplary embodiment, Figure 3 An exemplary structural diagram of an AC / DC conversion module provided by an embodiment of the present application is shown in Figure 3 As shown, the specific structure of the wind power hydrogen production simulation system 10 can be further exemplarily explained on the basis of Figure 1 The AC / DC conversion module 121 includes: The AC / DC conversion unit 121a is connected to the AC source 110 at the input end and is used to convert the AC power output by the AC source 110 into DC power.

[0046] The DC / DC conversion unit 121b is connected to the output end of the AC / DC conversion unit 121a at the input end, and the output end of the DC / DC conversion unit 121b is used to connect the hydrogen production electrolyzer 20. The DC / DC conversion unit 121b is used to perform voltage transformation and power regulation on the DC power according to the power distribution instructions of the control module 122, so as to realize the dynamic distribution of output power when multiple wind power hydrogen production simulation devices 120 are operated in parallel.

[0047] The AC / DC conversion unit 121a can be a power conversion device using uncontrollable rectification or PWM rectification technology, which can be used to convert AC input into pulsating DC power. The DC / DC conversion unit 121b can be a DC / DC converter with voltage regulation function, which can be used to realize voltage transformation and accurate power control of DC power.

[0048] Exemplarily, the input end of the AC / DC conversion unit 121a can be connected with the AC power source 110 through a filter, and the output end of the AC / DC conversion unit 121a can be connected with the input end of the DC / DC conversion unit 121b through an energy storage capacitor, forming a two-stage power conversion link. The output end of the DC / DC conversion unit 121b can be connected with the DC bus through a current sharing resistor, realizing current sharing when multiple devices are connected in parallel.

[0049] In this embodiment, the AC / DC conversion unit 121a and the DC / DC conversion unit 121b realize stable conversion from AC to DC and accurate power regulation, providing a standardized power conversion unit for parallel operation of the multiple wind power hydrogen production simulation devices 120, and improving the compatibility and expansion flexibility of the system.

[0050] In an exemplary embodiment, the control module comprises: a communication unit connected with the central control device, configured to receive a power distribution instruction sent by the central control device; a power regulation unit connected with the communication unit, configured to regulate the output voltage and current of the AC / DC conversion module according to the power distribution instruction; a state feedback unit connected with the power regulation unit, configured to feed back real-time operation state information of the wind power hydrogen production simulation device to the power regulation unit, so that the power regulation unit balances the output current of the current wind power hydrogen production simulation device and other wind power hydrogen production simulation devices.

[0051] The communication unit can be an interface module with data transceiving function, which can be used to establish a communication link between the control module and the central control device. The power regulation unit can be a controller using a PID control algorithm, which is used to convert the power distribution instruction into specific voltage and current regulation parameters, and can be used to realize accurate regulation of output power. The state feedback unit can be a monitoring module integrated with multiple sensors, which can be a monitoring module integrated with voltage, current and temperature sensors, and can be used to collect operation parameters of the device.

[0052] Exemplarily, the communication unit can receive the power distribution instruction of the central control device through CAN bus, RS485 bus, Ethernet communication and the like, and deliver it to the power regulation unit. The power regulation unit can calculate the PWM duty cycle according to the instruction and drive the AC / DC conversion module. The state feedback unit collects output voltage and current data in real time and feeds back to the power regulation unit to form a closed-loop control.

[0053] In this embodiment, the communication-regulation-feedback closed-loop control architecture can realize accurate receiving and execution of the power distribution instruction, ensure dynamic power balance when multiple devices are connected in parallel, and improve the control accuracy and stability of the system.

[0054] In one exemplary embodiment, Figure 4 A structure diagram of a wind power hydrogen production simulation system with a collection monitoring function provided by an embodiment of the application is shown in Figure 4 As shown, the specific structure of the wind power hydrogen production simulation system 10 can be further exemplarily described on the basis of Figure 1 The wind power hydrogen production simulation system further comprises: A data collection module 140 connected to the output end of each wind power hydrogen production simulation device, for collecting real-time working parameters of the hydrogen production electrolyzer; A power monitoring module 150 connected to the central control device, for monitoring the output power of each wind power hydrogen production simulation device and sending the monitoring results to the central control device to realize dynamic power coordination.

[0055] The data collection module 140 can be a multi-channel data collection card or a sensor group, which can be used to collect operating parameters such as voltage, current, and temperature of the electrolyzer. The power monitoring module 150 can be a power metering device based on a Hall sensor, which is used to monitor the output power of each device in real time.

[0056] Exemplarily, the data collection module 140 can be connected to the sensor interface of the electrolyzer through a shielded cable to collect real-time working parameters at a preset sampling rate. The power monitoring module 150 can collect the output signals of each wind power hydrogen production simulation device through current and voltage sensors, calculate the active power, and send it to the central control device through a communication interface.

[0057] In this embodiment, the data collection module 140 and the power monitoring module 150 can provide comprehensive system operation data for the central control device, so that the dynamic power coordination has accurate data basis, thereby improving the reliability of system control, and providing data support for fault diagnosis and performance optimization.

[0058] In one exemplary embodiment, the wind power hydrogen production simulation system further comprises: A fault protection module in communication connection with the central control device, for monitoring the output parameters of the alternating current source; The fault protection module is used to trigger an overload protection or short circuit protection mechanism when it detects that the output parameters exceed the preset safety threshold, and sends a fault status signal to the central control device, so that the central control device coordinates each wind power hydrogen production simulation device to reduce the output power or stop running.

[0059] The fault protection module can be a safety monitoring unit integrated with overvoltage, overcurrent, and overtemperature detection circuits. The preset safety threshold can be determined according to system design parameters and electrolyzer safety specifications.

[0060] Exemplarily, the sensor input end of the fault protection module can be connected with the output bus of the alternating current source to monitor the voltage, current and frequency parameters in real time. When it is detected that the parameters exceed the threshold value, the internal relay can act to cut off the main circuit, and send the fault code to the central control device through the CAN bus, RS485 bus or Ethernet protocol.

[0061] In this embodiment, the fault protection module can effectively prevent the damage of abnormal working conditions to the system through real-time monitoring and fast response mechanism, and improve the safety of equipment operation; at the same time, the linkage and coordination with the central control device ensure the stable transition of the system when the fault occurs, and reduce the risk of fault expansion.

[0062] In some exemplary specific embodiments, as shown in Figure 3 Each wind power hydrogen production simulation device can include a standard communication interface, an alternating current input interface, a control module, an AC / DC conversion unit, a DC / DC conversion unit, and a DC output interface. Each wind power hydrogen production simulation device can have an independent control interface and can be operated independently or in parallel with other modules.

[0063] The wind power hydrogen production simulation devices can be connected through standard electrical interfaces to realize parallel connection of power output. At the same time, a standard communication interface can be provided to communicate with the central control device, and the control systems can exchange data through a unified communication protocol (such as CAN, Ethernet or RS485) to ensure the consistency of parallel system operation.

[0064] The central control device can be responsible for coordinating the output power of each wind power hydrogen production simulation device, dynamically allocating the working power of each device according to the system test requirements, supporting multi-machine parallel control algorithm and current sharing algorithm to ensure power balance and system stability during parallel operation. The control strategy can adopt a hierarchical control strategy: The upper layer control can decide the output mode, output voltage, current, power and other electrical characteristics through the central control device.

[0065] The middle layer control can coordinate the current sharing and phase synchronization of the AC / DC conversion unit and the DC / DC conversion unit between devices through the control module in each wind power hydrogen production simulation device through master-slave control.

[0066] The bottom layer control hardware can drive the execution of PWM modulation and protection.

[0067] Optionally, the specific implementation manner can include: The central control device is a master controller responsible for the coordination and management of the overall system, collecting data from each module, and performing power distribution and coordinated control.

[0068] The control module in the wind power hydrogen production simulation device is a slave controller, responsible for local power conversion, monitoring and executing instructions of the master controller.

[0069] Using CAN bus, RS485 or Ethernet protocol, real-time data transmission between the master controller and the slave controller is ensured, and a synchronization mechanism is used to ensure time synchronization of each module to avoid timing problems.

[0070] Real-time monitoring of the output current of each module is used to balance the current, and a feedback mechanism is used to dynamically adjust the output of each module to ensure current balance and phase synchronization and reduce circulating current.

[0071] After the control signal of the slave controller is transmitted to the bottom layer, the bottom layer drive adjusts the duty cycle of the PWM signal and cooperates with the PID closed loop to adjust the output voltage and current of the DC / DC conversion unit. The bottom layer drive also has a protection mechanism to support overcurrent, overvoltage, short circuit and other hardware protection.

[0072] In this embodiment, through modular design and standardized interface, flexible expansion and independent operation ability of the wind power hydrogen production simulation device can be realized to meet different power level test requirements; the hierarchical control strategy combined with the unified communication protocol can ensure the cooperation and data consistency when multiple devices are connected in parallel; the application of master-slave control architecture and current sharing algorithm effectively improves the system power distribution accuracy and operation stability; the closed-loop regulation and hardware protection mechanism of the bottom layer drive can further enhance the reliability and anti-interference ability of the system, providing an efficient, safe and expandable simulation platform for testing and verification of the wind power hydrogen production system.

[0073] In one exemplary embodiment, Figure 5 A flowchart of a wind power hydrogen production simulation method provided by the embodiment of the present application is applied to a wind power hydrogen production simulation system 10 as shown in Figures 1 to 4 as shown in Figure 5 The method comprises the following steps: S501, the same wind power simulation parameters are issued to each wind power hydrogen production simulation device, and the working mode corresponding to at least one hydrogen production electrolyzer is determined.

[0074] The determination of the working mode corresponding to the hydrogen production electrolyzer 20 can be achieved by automatic recognition mechanism or manual configuration, and the core technical parameters and operation requirements of the hydrogen production electrolyzer 20 are obtained, including rated working voltage range, rated working current range and preset operation control mode (such as constant voltage mode, constant current mode or maximum power tracking mode, etc.), which can provide basic configuration basis for subsequent power coordination.

[0075] Exemplarily, the central control device 130 implements the specific mode of determining the working mode, including: reading the factory nameplate parameter information (such as rated voltage, rated current, electrolyzer type identification, etc.) of the hydrogen production electrolyzer 20 through the data acquisition module, or automatically identifying and matching by detecting the initial electrical characteristics (such as no-load voltage, internal resistance characteristics, etc.) of the electrolyzer; at the same time, the system supports the operator to manually select the preset working mode parameter set through the man-machine interface (such as touch screen, physical button or remote control terminal), to meet the special test scene or manual debugging requirements.

[0076] S502, according to the working mode of the hydrogen production electrolyzer, coordinating the output power of each wind power hydrogen production simulation device to test the corresponding working result of at least one hydrogen production electrolyzer in the working mode under the input power corresponding to the wind power simulation parameter.

[0077] Among them, coordinating the output power of each wind power hydrogen production simulation device 120 can mean that the central control device 130 dynamically adjusts the output power ratio of each wind power hydrogen production simulation device 120 according to the working mode requirements of the hydrogen production electrolyzer 20 through the power distribution instruction, realizes the process of matching the total output power with the working mode. The working power corresponding to the working mode can be the real-time power value required by the hydrogen production electrolyzer 20 in a specific operating mode (such as constant voltage, constant current).

[0078] Exemplarily, the central control device 130 can calculate the total power demand according to the working mode determined in S401, combine the real-time running state (such as current output power, load capacity) of each wind power hydrogen production simulation device 120, and generate a power distribution instruction through a preset current sharing algorithm. The power distribution instruction can be sent to the control module 122 of each wind power hydrogen production simulation device 120 through the communication bus, and the control module 122 can adjust the output voltage and current of the AC / DC conversion module 121, and at the same time can monitor the output power in real time through the state feedback unit and feedback to the central control device 130, forming a closed loop regulation.

[0079] It should be understood that the wind power hydrogen production simulation method provided by the embodiment has a clear technical correspondence with the above-mentioned embodiment of the wind power hydrogen production simulation system, and the steps of S501-S502 can be realized through the communication interaction between the central control device 130 and the wind power hydrogen production simulation device 120. Specifically, it depends on the hardware support of the communication unit, power regulation unit and state feedback unit in the control module 122; the dynamic power distribution logic in the method can correspond to the current sharing algorithm and hierarchical control architecture in the wind power hydrogen production simulation system, and the instruction issuing and state returning are realized through the communication protocol such as CAN bus or Ethernet, forming a closed loop control link, ensuring the function matching and technical logic consistency of the method steps and system hardware components.

[0080] In this embodiment, through the coordinated control of working mode recognition and dynamic power coordination, precise control of the 20 operating points of the hydrogen electrolyzer is achieved, ensuring the power distribution balance when multiple devices are running in parallel. The introduction of the closed-loop feedback mechanism improves the system's response speed to load fluctuations, while the hierarchical control architecture enhances the flexibility and reliability of power regulation, providing a high-precision simulation environment for dynamic characteristic testing of wind power hydrogen production systems.

[0081] In one exemplary embodiment, the method further includes: Collect real-time operating parameters of the hydrogen electrolyzer; Monitor the output power of each wind power hydrogen production simulator; adjust the power distribution command of each wind power hydrogen production simulator according to the real-time operating parameters and the output power of each simulator.

[0082] Among these, real-time operating parameters refer to status parameters such as voltage, current, and temperature of the hydrogen electrolyzer during operation. Power coordination commands refer to control commands generated by the central control unit based on monitoring data, used to adjust the output power of each wind power hydrogen production simulator.

[0083] For example, the data acquisition module can collect electrolyzer parameters at a preset sampling frequency, the power monitoring module can simultaneously acquire the output power of each wind power hydrogen production simulation device, and the central control device can compare the real-time data with the rated parameters and adjust the power distribution command through the PID algorithm to stabilize the system output at the target value.

[0084] In this embodiment, the system's response speed to changes in operating conditions can be improved by combining real-time data acquisition with dynamic adjustment, thereby ensuring that the hydrogen electrolyzer operates at the optimal operating point. At the same time, it provides data support for fault diagnosis and enhances the reliability of the system.

[0085] In an exemplary embodiment, when the wind power hydrogen production simulation device includes a control module and an AC / DC conversion module, coordinating the output power of each wind power hydrogen production simulation device includes: According to the working mode of the hydrogen electrolyzer, a power distribution command is sent to the control module.

[0086] The control module is used to adjust the output power of the AC / DC conversion module according to the power distribution command, so as to realize the power expansion and distribution when multiple wind power hydrogen production simulation devices are running in parallel.

[0087] Sending power allocation commands to the control module can refer to the process by which the central control unit issues specific power values ​​to the control modules of each wind power hydrogen production simulation unit based on the total power demand. Adjusting the AC / DC conversion module by the control module can refer to the control module changing the output power of the AC / DC conversion module by adjusting the PWM duty cycle, etc.

[0088] Exemplarily, the central control device can calculate the target power of each wind-to-hydrogen simulation device according to the working mode of the hydrogen production electrolyzer, package the power distribution instruction, and send it through the communication bus. The control module parses the instruction and drives the AC-DC conversion module to execute, and the execution result is fed back in real time through the state feedback unit.

[0089] In this embodiment, the burden of the central control device can be reduced through the localized adjustment of the control module, and the response speed of the system is improved. At the same time, the standardized instruction interface can facilitate system expansion and reduce the complexity of multi-device collaborative control.

[0090] In one exemplary embodiment, when the control module includes a communication unit, a power regulation unit, and a state feedback unit, the method further includes: Sending a power distribution instruction to the communication unit of the control module, the communication unit being configured to transmit the power distribution instruction to the power regulation unit.

[0091] The power regulation unit is configured to adjust the output voltage and current of the AC-DC conversion module according to the power distribution instruction, and to balance the output current of the current wind-to-hydrogen simulation device with other wind-to-hydrogen simulation devices according to the real-time running state information of the wind-to-hydrogen simulation device fed back by the state feedback unit.

[0092] The process of the communication unit transmitting the power distribution instruction can be the process of accurately delivering the instruction of the central control device to the power regulation unit through a reliable communication protocol. The process of the power regulation unit adjusting the voltage and current can be the accurate control of the output of the AC-DC conversion module through a control algorithm according to the power distribution instruction parameters.

[0093] Exemplarily, the communication unit can use CRC check to ensure the integrity of the instruction, the power regulation unit can adjust the output in real time by combining, for example, a PI algorithm, and the state feedback unit can provide feedback data at a high frequency to form a fast closed-loop control.

[0094] In this embodiment, through the modular control architecture, efficient cooperation of instruction transmission, power regulation, and state monitoring is achieved, the power control accuracy and system anti-interference ability are improved, and protection is provided for current sharing control of multiple devices operating in parallel.

[0095] In one exemplary embodiment, when the system further includes a fault protection module, the method further includes: Monitoring the output parameters of the AC source through the fault protection module; the fault protection module is configured to trigger an overload protection or short circuit protection mechanism if it detects that the output parameters exceed a preset safety threshold.

[0096] Receiving the fault state signal sent by the fault protection module.

[0097] Based on the fault status signal, coordinate each wind power hydrogen production simulation unit to reduce its output power or stop operating.

[0098] Among these, the fault status signal refers to a signal generated by the fault protection module when it detects an anomaly, containing information such as the fault type and the time of occurrence. Coordinated reduction of output power or shutdown refers to protective measures taken by the central control unit based on the fault level.

[0099] For example, when the fault protection module detects overvoltage, it immediately cuts off the output and sends a fault signal. After receiving the signal, the central control device can quickly issue a power reduction command to each wind power hydrogen production simulation device and record the fault information at the same time.

[0100] In this embodiment, the linkage mechanism between the fault protection module and the central control device enables rapid fault detection and response, avoids damage to the system caused by the expansion of the fault, improves the safety of equipment operation, and provides a clear fault location basis for system maintenance.

[0101] In one exemplary embodiment, Figure 6 A schematic diagram of the specific structure of a wind power hydrogen production simulation system provided in this application embodiment is shown below. Figure 6 As shown, it is possible to Figure 1 Based on this, a detailed structural description of the wind power hydrogen production simulation device 120 is provided, including the wind power hydrogen production simulation system 10 and the method. Specifically, the wind power hydrogen production simulation system 10 may include an AC power source 110, the wind power hydrogen production simulation device 120, and a central control device 130; wherein: AC power source 110 is connected to wind power hydrogen production simulation device 120 to provide input AC power.

[0102] Here, AC source 110 can refer to a system for AC input, such as an AC transmission network or an AC generator, to provide dynamic energy input for the wind power hydrogen production simulation system.

[0103] For example, AC source 110 can provide AC power input to wind power hydrogen production simulation system 10, and can be used to provide power source for power conversion of AC / DC conversion unit 121a of wind power hydrogen production simulation device 120. Control module 122 of wind power hydrogen production simulation device 120 can be used to control AC conversion, for example, to achieve stable AC to DC conversion by adjusting the PWM duty cycle of AC / DC conversion unit 121a, and also to control DC conversion distribution, thereby realizing a wind power hydrogen production simulation system with multiple power parallel expansion.

[0104] In the wind power hydrogen production simulation system 10, each wind power hydrogen production simulation device 120 can be a module, which can be independently operated or support multiple modules in parallel operation, thereby realizing flexible configuration and expansion of output power; the central control device 130 can be used for power distribution and coordinated control of the parallel wind power hydrogen production simulation devices 120, so as to ensure that the power output by each wind power hydrogen production simulation device 120 is matched and the current is balanced, and to avoid circulating current and imbalance; the wind power hydrogen production simulation device 120 can be combined and configured for hydrogen production electrolytic cells 20 of different power levels, so as to adapt to various application scenarios from small laboratory tests to large engineering prototypes.

[0105] Standardized interface design: general and standardized electrical and control interfaces are used between modules, facilitating quick connection, disassembly and maintenance of the modules; Unified communication and state monitoring: through a unified communication protocol and state monitoring system, information exchange and state synchronization between parallel modules are realized, and the reliability and stability of the system are improved.

[0106] Each wind power hydrogen production simulation device 120 can include a standard communication interface, an AC input interface, a control module 122, an AC / DC conversion unit 121a, a DC / DC conversion unit 121b, and a DC output interface. Each wind power hydrogen production simulation device 120 can have an independent control interface and can be operated independently or in parallel with other modules.

[0107] The wind power hydrogen production simulation devices 120 can be connected through standard electrical interfaces to realize parallel power output. At the same time, standard communication interfaces can be provided for communication with the central control device 130. The control systems exchange data through a unified communication protocol (such as CAN, Ethernet or RS485), ensuring the consistency of the parallel system operation.

[0108] The central control device 130 can be responsible for coordinating the output power of each wind power hydrogen production simulation device 120, dynamically distributing the working power of each device according to system test requirements, supporting multi-machine parallel control algorithms and current sharing algorithms, and ensuring power balance and system stability during parallel operation. In terms of control strategy, a hierarchical control strategy can be adopted: The upper layer control can determine the output mode, output voltage, current, power and other electrical characteristics through the central control device 130.

[0109] The middle layer control can coordinate the current sharing and phase synchronization of the AC / DC conversion unit 121a and the DC / DC conversion unit 121b between devices through the control module 122 in each wind power hydrogen production simulation device 120 through master-slave control.

[0110] The bottom layer control hardware can drive PWM modulation and protection.

[0111] Optionally, the implementation can include: The central control device 130 is a master controller responsible for the coordination and management of the overall system, collecting data from each module, and performing power distribution and coordinated control.

[0112] The control module 122 in the wind power hydrogen production simulation device 120 is a slave controller responsible for local power conversion, monitoring, and executing instructions from the master controller.

[0113] Using CAN bus, RS485, or Ethernet protocols, real-time data transmission between the master controller and the slave controller is ensured, and a synchronization mechanism is used to ensure time synchronization of each module, avoiding timing issues.

[0114] Real-time monitoring of the output current of each module is used to balance the current, and a feedback mechanism is used to dynamically adjust the output of each module to ensure current balance and phase synchronization, reducing circulating current.

[0115] After the control signal from the slave controller is passed to the bottom layer, the bottom layer drive adjusts the duty cycle of the PWM signal and cooperates with the PID closed loop to adjust the output voltage and current of the DC / DC conversion unit 121b. The bottom layer drive also has a protection mechanism that supports overcurrent, overvoltage, short circuit, and other hardware protection.

[0116] In this embodiment, the wind power hydrogen production simulation system 10 has the following priorities: Strong power scalability: supports simultaneous power supply for multiple electrolytic cells, simulates the scenario of multiple loads running in parallel in a real wind power hydrogen production system, and improves the accuracy and comprehensiveness of testing.

[0117] Modular design for easy maintenance and upgrade: each power module can operate independently, facilitating fault location and replacement, supporting plug-and-play module addition, and facilitating future system upgrades or expansions.

[0118] High resource utilization: in low-power testing scenarios, only one or a portion of the wind power hydrogen production simulation system needs to be enabled, avoiding resource waste, and in high-power testing scenarios, multiple modules can be connected in parallel to meet demand, avoiding overdesign of equipment.

[0119] Strong compatibility and good versatility: strong adaptability, suitable for laboratory research, engineering prototype testing, and system integration verification in various application scenarios.

[0120] It should be understood that although the steps in the flowcharts involved in the embodiments described above are shown in sequence according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified herein, the execution of these steps is not strictly limited in sequence, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the embodiments described above 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 these steps or stages is not necessarily sequential, but can be alternately or alternately executed with at least part of other steps or steps or stages in other steps.

[0121] In an exemplary embodiment, a central control device 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: issuing the same wind power simulation parameters to each wind-to-hydrogen simulation device, and determining the working mode corresponding to the hydrogen production electrolyzer; According to the working mode of the hydrogen production electrolyzer, the output power of each wind-to-hydrogen simulation device connected in groups is coordinated to test the corresponding working result of at least one hydrogen production electrolyzer in the working mode under the input power corresponding to the wind power simulation parameters.

[0122] In an exemplary embodiment, when the system further comprises a data acquisition module and a power monitoring module, the processor of the central control device further implements the following steps when executing the computer program: acquiring real-time working parameters of the hydrogen production electrolyzer; monitoring the output power of each wind-to-hydrogen simulation device, and adjusting the power distribution instructions of each wind-to-hydrogen simulation device according to the real-time working parameters and the output power of each wind-to-hydrogen simulation device.

[0123] In an exemplary embodiment, when the wind-to-hydrogen simulation device comprises a control module, the processor of the central control device further implements the following steps when executing the computer program: According to the working mode of the hydrogen production electrolyzer, the power distribution instructions are sent to the control module; The control module is configured to adjust the output power of the AC / DC conversion module according to the power distribution instructions to realize power expansion and distribution when multiple wind-to-hydrogen simulation devices are operated in parallel.

[0124] In an exemplary embodiment, when the control module comprises a communication unit, a power regulation unit and a state feedback unit, the processor of the central control device further implements the following steps when executing the computer program: The power distribution instruction is sent to a communication unit of the control module, and the communication unit is configured to transmit the power distribution instruction to the power adjustment unit; The power adjustment unit is configured to adjust the output voltage and current of the AC / DC conversion module according to the power distribution instruction, and balance the output current of the current wind power hydrogen production simulation device with other wind power hydrogen production simulation devices according to the real-time operation state information of the wind power hydrogen production simulation device fed back by the state feedback unit.

[0125] In one exemplary embodiment, a computer readable storage medium is provided, and the computer readable storage medium stores a computer program. The computer program is executed by a processor to implement the steps of the method for simulating wind power hydrogen production.

[0126] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiments can be completed by a computer program instructing related hardware. 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. 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. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0127] 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.

[0128] The technical features of the above embodiments can be combined arbitrarily. 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 combinations of the technical features do not contradict, they should be considered as the scope of the present specification.

[0129] The above-described embodiments are merely illustrative of several embodiments of the present application, which are described in more detail and in a specific 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 includes: At least two wind power hydrogen production simulation devices are provided, and each of the wind power hydrogen production simulation devices is connected in parallel. The input terminals of each wind power hydrogen production simulation device are used to connect to AC power, and the output terminals of each wind power hydrogen production simulation device are connected to each other in groups. Each group connection is used to connect to the hydrogen production electrolysis cell corresponding to each group. The central control unit is communicatively connected to each of the aforementioned wind power hydrogen production simulation devices; The central control device is used to issue the same wind power simulation parameters to each of the wind power hydrogen production simulation devices, and coordinate the output power of the wind power hydrogen production simulation devices connected in groups at each output end according to the working mode of at least one of the hydrogen production electrolyzers, so as to test the working results of at least one of the hydrogen production electrolyzers under the input power corresponding to the wind power simulation parameters when the working mode is in the specified mode.

2. The wind power hydrogen production simulation system according to claim 1, characterized in that, The wind power hydrogen production simulation device includes: An AC / DC conversion module, wherein the input terminal of the AC / DC conversion module is connected to an AC source, and is used to convert the AC power output from the AC source into DC power; The control module is communicatively connected to the central control device and is used to adjust the output power of the AC / DC conversion module according to the power distribution command of the central control device, so as to realize the power expansion and distribution when multiple wind power hydrogen production simulation devices are running in parallel.

3. The wind power hydrogen production simulation system according to claim 2, characterized in that, The AC / DC conversion module includes: AC / DC conversion unit, wherein the input terminal of the AC / DC conversion unit is connected to the AC source, and is used to convert the AC power output by the AC source into DC power; The DC / DC conversion unit has its input terminal connected to the output terminal of the AC / DC conversion unit. The output terminal of the DC / DC conversion unit is used to connect to the hydrogen electrolyzer and is used to perform voltage conversion and power regulation of DC power according to the power distribution command of the control module, so as to realize the dynamic distribution of output power when multiple wind power hydrogen production simulation devices are connected in parallel.

4. The wind power hydrogen production simulation system according to claim 2, characterized in that, The control module includes: A communication unit, connected to the central control device, is used to receive power allocation commands sent by the central control device; A power regulation unit, connected to the communication unit, is used to regulate the output voltage and current of the AC-DC conversion module according to the power distribution command; A status feedback unit, connected to the power regulation unit, is used to feed back the real-time operating status information of the wind power hydrogen production simulation device to the power regulation unit, so that the power regulation unit can balance the output current of the current wind power hydrogen production simulation device with that of other wind power hydrogen production simulation devices.

5. The wind power hydrogen production simulation system according to claim 1, characterized in that, The wind power hydrogen production simulation system also includes: The data acquisition module is connected to the output terminal of each of the wind power hydrogen production simulation devices and is used to collect the real-time operating parameters of the hydrogen production electrolyzer. The power monitoring module, connected to the central control device, is used to monitor the output power of each of the wind power hydrogen production simulation devices and send the monitoring results to the central control device to achieve dynamic power coordination.

6. The wind power hydrogen production simulation system according to claim 1, characterized in that, The wind power hydrogen production simulation system also includes: The fault protection module is communicatively connected to the central control device and is used to monitor the output parameters of the AC source; The fault protection module is used to trigger overload protection or short circuit protection mechanisms when the output parameters are detected to exceed the preset safety threshold, and to send the fault status signal to the central control device so that the central control device can coordinate each of the wind power hydrogen production simulation devices to reduce the output power or stop operation.

7. A method for simulating hydrogen production from wind power, characterized in that, Applied to the wind power hydrogen production simulation system as described in any one of claims 1-6, the method comprises: The same wind power simulation parameters are issued to each of the aforementioned wind power hydrogen production simulation devices, and the working mode corresponding to at least one hydrogen production electrolyzer is determined; According to the working mode of at least one of the hydrogen production electrolyzers, the output power of the wind power hydrogen production simulation device connected in groups at each output end is coordinated to test the working results of at least one of the hydrogen production electrolyzers under the input power corresponding to the wind power simulation parameters when the working mode is in the working mode.

8. The method according to claim 7, characterized in that, The method further includes: Collect the real-time operating parameters of the hydrogen electrolyzer; Monitor the output power of each of the aforementioned wind power hydrogen production simulation devices; Based on the real-time operating parameters and the output power of each wind power hydrogen production simulator, adjust the power allocation command of each wind power hydrogen production simulator.

9. The method according to claim 7, characterized in that, When the wind power hydrogen production simulation device includes a control module and an AC / DC conversion module, coordinating the output power of each of the wind power hydrogen production simulation devices includes: According to the working mode of the hydrogen electrolyzer, a power allocation command is sent to the control module; The control module is used to adjust the output power of the AC / DC conversion module according to the power distribution command, so as to realize the power expansion and distribution when multiple wind power hydrogen production simulation devices are running in parallel.

10. The method according to claim 9, characterized in that, When the control module includes a communication unit, a power regulation unit, and a status feedback unit, the method further includes: The power allocation command is sent to the communication unit of the control module, and the communication unit is used to transmit the power allocation command to the power adjustment unit; The power regulation unit is used to adjust the output voltage and current of the AC-DC conversion module according to the power allocation command, and is also used to balance the output current of the current wind power hydrogen production simulator with other wind power hydrogen production simulators according to the real-time operating status information of the wind power hydrogen production simulator fed back by the status feedback unit.

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