Coordination control device and method for mixed hydrogen production system

Abstract

The invention provides a coordinated control device and method for a hybrid hydrogen production system, and the device comprises a first type of hydrogen production unit, a second type of hydrogen production unit, a redundant communication network, and a main strategy controller, a first control device transmits the state information of a first type of hydrogen production function module to the redundant communication network, and a second control device transmits the state information of a second type of hydrogen production function module to the main strategy controller; the second control device sends the state information of the second type of hydrogen production function module to the redundant communication network; the main strategy controller receives the state information of the adjacent first type of hydrogen production function module and / or the state information of the second type of hydrogen production function module from the redundant communication network; and generating a control strategy for the first type of hydrogen production units and / or the second type of hydrogen production units, and sending the control strategy to the first control device and / or the second control device through the redundant communication network. According to the scheme provided by the invention, point-to-point rapid data interaction and information resource sharing between the devices in the hybrid hydrogen production system are realized, and data support is provided for operation of a coordinated control system.

Description

Technical Field

[0001] The present application relates to the technical field of hydrogen production, and in particular, to a coordinated control device and method for a hybrid hydrogen production system. Background Art

[0002] At present, hydrogen storage and production schemes have received more and more attention as an environmentally friendly and efficient new energy source. In existing schemes, the power generation power of the power generation device of the hydrogen storage and production system and the state of charge of the energy storage device are usually collected to determine the input power and battery capacity of the hydrogen storage and production system, so as to determine the corresponding allocation strategy and control benchmark parameters, and to distribute and control the power of the system's energy storage unit, hydrogen production unit and unloading unit, so as to realize the energy management of the hydrogen storage and production system and ensure the stable operation of the hydrogen storage and production system.

[0003] In the above scheme of the prior art, the entire implementation process at least includes data collection, power calculation, instruction issuance and power allocation. The signal transmission process link is relatively long and the entire link takes too long, which has a certain impact on the hydrogen production efficiency of the hydrogen storage and production system. Summary of the invention

[0004] The technical problem to be solved by the present application is the problem of long time consumption and low efficiency in the existing hydrogen storage and production schemes. To this end, the present application proposes a coordinated control device and method for a hybrid hydrogen production system.

[0005] In response to the above technical problems, this application provides the following technical solutions:

[0006] In a first aspect, the technical solution of the present application provides a hybrid hydrogen production system coordination control device, comprising:

[0007] A first type of hydrogen production unit, comprising a first control device and a first type of hydrogen production functional module connected to the first control device;

[0008] A second type of hydrogen production unit, comprising a second control device and a second type of hydrogen production functional module connected to the second control device;

[0009] A redundant communication network is used to connect the first control device and the second control device in pairs for communication, wherein the first control device sends the status information of the first type of hydrogen production functional module to the adjacent first control device or second control device through the redundant communication network, and the second control device sends the status information of the second type of hydrogen production functional module to the adjacent first control device or second control device through the redundant communication network;

[0010] A main strategy controller is connected to the redundant communication network, and the main strategy controller receives status information of the adjacent first-type hydrogen production functional module and / or status information of the second-type hydrogen production functional module from the redundant communication network, generates a control strategy for the first-type hydrogen production unit and / or the second-type hydrogen production unit, and sends the control strategy to the adjacent first control device and / or second control device through the redundant communication network.

[0011] In some schemes, the hybrid hydrogen production system coordination control device, the first type of hydrogen production unit is a PEM hydrogen production unit, and the first type of hydrogen production functional module includes a PEM hydrogen production power supply, a PEM electrolyzer, a first gas-liquid separation module and a first hydrogen purification module;

[0012] The first control device includes a PEM controller and a PEM auxiliary controller, the PEM controller is used to control the PEM hydrogen production power supply, and the PEM auxiliary controller is used to control the PEM electrolyzer, the first gas-liquid separation module and the first hydrogen purification module; the PEM controller and the PEM auxiliary controller are communicatively connected to communicate with each other and are used to communicatively connect any two of the PEM hydrogen production power supply, the PEM electrolyzer, the first gas-liquid separation module and the first hydrogen purification module.

[0013] In some embodiments, the hybrid hydrogen production system coordination control device is described, wherein the second type of hydrogen production unit is an alkaline electrolysis hydrogen production unit, and the second type of hydrogen production functional module includes an alkaline hydrogen production power supply, an alkaline electrolyzer, a second gas-liquid separation module, and a second hydrogen purification module;

[0014] The second control device includes an alkaline controller and an alkaline auxiliary controller, the alkaline controller is used to control the alkaline hydrogen production power supply, and the alkaline auxiliary controller is used to control the alkaline electrolyzer, the second gas-liquid separation module and the second hydrogen purification module; the alkaline controller and the alkaline auxiliary controller are communicatively connected to communicate with each other and are used to communicatively connect any two of the alkaline hydrogen production power supply, the alkaline electrolyzer, the second gas-liquid separation module and the second hydrogen purification module.

[0015] The hybrid hydrogen production system coordination control device described in some schemes also includes:

[0016] a heat storage system coupled to the first type of hydrogen production unit and the second type of hydrogen production unit;

[0017] A heat storage controller is connected to the heat storage system; the heat storage controller is connected to the redundant communication network, the heat storage controller receives status information of the first type of hydrogen production functional modules and / or status information of the second type of hydrogen production functional modules adjacent to each other on the redundant communication network and the control strategy, and controls the heat storage system to supply heat to the first type of hydrogen production unit and / or the second type of hydrogen production unit according to the status information of the first type of hydrogen production functional modules and / or status information of the second type of hydrogen production functional modules and the control strategy.

[0018] The hybrid hydrogen production system coordination control device described in some schemes also includes:

[0019] a power supply system coupled to the adjacent first type hydrogen production unit and the second type hydrogen production unit;

[0020] A power storage controller is connected to the power supply system; the power storage controller is connected to the redundant communication network, the power storage controller receives status information of the adjacent first-category hydrogen production functional modules and / or status information of the second-category hydrogen production functional modules on the redundant communication network and the control strategy, and controls the power supply system to supply power to the first-category hydrogen production unit and / or the second-category hydrogen production unit according to the status information of the first-category hydrogen production functional modules and / or status information of the second-category hydrogen production functional modules and the control strategy.

[0021] The hybrid hydrogen production system coordination control device described in some schemes also includes:

[0022] A new energy power supply unit, the new energy power supply unit is connected to the redundant communication network, and sends power supply information to the main strategy controller through the redundant communication network;

[0023] The main strategy controller receives the power supply information, and adjusts the control strategy according to the power supply information so that the control strategy adapts to the fluctuation in the power supply information.

[0024] In some embodiments, the hybrid hydrogen production system coordination control device, the main strategy controller analyzes fluctuations in the power supply information;

[0025] The main strategy controller analyzes the hydrogen output speed, fault information and failure information in the status information of the first type of hydrogen production function module and the status information of the adjacent second type of hydrogen production function module or the first type of hydrogen production function module;

[0026] The main strategy controller generates a control strategy according to the fluctuation, the hydrogen output speed, the fault information and the failure information.

[0027] In a second aspect, the technical solution of the present application provides a method for coordinated control of a hybrid hydrogen production system, comprising:

[0028] Acquiring status information of each hydrogen production function module in adjacent hydrogen production units through a redundant communication network, wherein the redundant communication network connects the hydrogen production function modules in pairs;

[0029] Determining a control strategy according to the status information of each hydrogen production functional module, wherein the control strategy includes control instructions for controlling adjacent hydrogen production functional modules;

[0030] The control strategy is sent to adjacent hydrogen production functional modules through the redundant communication network.

[0031] The coordinated control method of the hybrid hydrogen production system described in some embodiments further includes:

[0032] The control strategy also includes control instructions for controlling the thermal storage system

[0033] The control strategy of the adjacent first-class hydrogen production unit or the second first-class hydrogen production unit is sent to the heat storage controller of the heat storage system through the redundant communication network, and the heat storage controller controls the heat storage system according to the control strategy to provide heat to the adjacent first-class hydrogen production unit or the second first-class hydrogen production unit when the temperature of the hydrogen production unit is low.

[0034] The coordinated control method of the hybrid hydrogen production system described in some embodiments further includes:

[0035] The control strategy also includes control instructions for controlling the power supply system;

[0036] Sending the control strategy of the adjacent first-type hydrogen production unit or the second first-type hydrogen production unit to the power storage controller of the power supply system through the redundant communication network;

[0037] The power supply system is used to supplement or store electric energy when the power supply information of the new energy power supply unit fluctuates.

[0038] The technical solution of this application has the following technical effects compared with the prior art:

[0039] The present application provides a coordinated control device and method for a hybrid hydrogen production system, wherein the device includes a first type of hydrogen production unit, a second type of hydrogen production unit, a redundant communication network and a main strategy controller, wherein the first type of hydrogen production unit includes a first control device and a first type of hydrogen production functional module connected to the first control device; the second type of hydrogen production unit includes a second control device and a second type of hydrogen production functional module connected to the second control device; the first control device and the second control device are connected in pairs through a redundant communication network, the first control device sends the status information of the first type of hydrogen production functional module to the adjacent first or second hydrogen production control device through the redundant communication network, and the second control device sends the status information of the second type of hydrogen production functional module to the adjacent first or second hydrogen production control device through the redundant communication network; the main strategy controller is connected to the redundant communication network, the main strategy controller receives the status information of the adjacent first type of hydrogen production functional module and / or the status information of the second type of hydrogen production functional module from the redundant communication network, generates a control strategy for the first type of hydrogen production unit and / or the second type of hydrogen production unit, and sends the control strategy to the first control device and / or the second control device through the redundant communication network. The above scheme provided by the present application connects any two units or modules in the hybrid hydrogen production system through a redundant communication network, and adjacent units or modules can send and receive information required by adjacent units or modules through the redundant communication network. The main strategy controller directly obtains various types of information for generating control strategies through the redundant communication network, and sends the generated control strategies to adjacent units or modules through the redundant communication network. The scheme in the present application realizes point-to-point rapid data interaction and information resource sharing between devices in the hybrid hydrogen production system, providing data support for the coordinated control system operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings, which will help to understand the purpose and advantages of the present application, wherein:

[0041] Figure 1 This is a structural block diagram of a coordinated control device for a hybrid hydrogen production system according to an embodiment of the present application;

[0042] Figure 2 This is a schematic diagram of the architecture of a redundant communication network according to an embodiment of the present application;

[0043] Figure 3 This is a structural schematic diagram of a hybrid hydrogen production system according to an embodiment of the present application;

[0044] Figure 4 This is a flow chart of a coordinated control method for a hybrid hydrogen production system according to an embodiment of the present application. DETAILED DESCRIPTION

[0045] The technical solution of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present application.

[0046] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0048] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0049] The present application provides a hybrid hydrogen production system coordination control device, combined with Figure 1 and Figure 2As shown, the coordinated control device of the hybrid hydrogen production system includes: a first type of hydrogen production unit 100, including a first control device and a first type of hydrogen production functional module connected to the first control device; a second type of hydrogen production unit 200, including a second control device and a second type of hydrogen production functional module connected to the second control device; a redundant communication network, connecting the first control device and the second control device for communication, the first control device sends the status information of the first type of hydrogen production functional module to the adjacent first control device or second control device through the redundant communication network, and the second control device sends the status information of the second type of hydrogen production functional module to the adjacent first control device or second control device through the redundant communication network; a main strategy controller, connected to the redundant communication network, the main strategy controller receives the status information of the adjacent first type of hydrogen production functional module and / or the status information of the second type of hydrogen production functional module from the redundant communication network, generates a control strategy for the first type of hydrogen production unit and / or the second type of hydrogen production unit, and sends the control strategy to the adjacent first control device and / or the second control device through the redundant communication network.

[0050] The first type of hydrogen production unit 100 and the first type of hydrogen production unit 200 can be any two different types of hydrogen production units. Figure 2 As shown, the first type of hydrogen production unit 100 is a PEM hydrogen production unit, and the first type of hydrogen production functional module includes a PEM hydrogen production power supply, a PEM electrolyzer, a first gas-liquid separation module and a first hydrogen purification module; the first control device includes a PEM controller and a PEM auxiliary controller, the PEM controller is used to control the PEM hydrogen production power supply, and the PEM auxiliary controller is used to control the PEM electrolyzer, the first gas-liquid separation module and the first hydrogen purification module; the PEM controller and the PEM auxiliary controller are communicatively connected to communicate with each other and are used to communicatively connect any two of the PEM hydrogen production power supply, the PEM electrolyzer, the first gas-liquid separation module and the first hydrogen purification module. The second type of hydrogen production unit 200 is an alkaline electrolysis hydrogen production unit, and the second type of hydrogen production functional module includes an alkaline hydrogen production power supply, an alkaline electrolyzer, a second gas-liquid separation module and a second hydrogen purification module; the second control device includes an alkaline controller and an alkaline auxiliary controller, the alkaline controller is used to control the alkaline hydrogen production power supply, and the alkaline auxiliary controller is used to control the alkaline electrolyzer, the second gas-liquid separation module and the second hydrogen purification module; the alkaline controller and the alkaline auxiliary controller are communicatively connected, and are used to communicatively connect any two of the alkaline hydrogen production power supply, the alkaline electrolyzer, the second gas-liquid separation module and the second hydrogen purification module.

[0051] Combination Figure 1The redundant high-speed communication architecture schematic diagram shown in the figure, the first control device, the second control device and the main strategy controller all include multiple controllers, each of which is connected to other controllers in pairs to form two closed-loop network communication interaction systems. When a breakpoint occurs in the communication line, it will not affect the normal information interaction of each controller, thereby improving the communication security. The communication transmission medium in the redundant communication network is not limited to optical fiber, network cable, wireless signal and other electrical transmission media. The communication interaction protocol adopts a high-speed communication protocol, and can adopt a custom communication protocol or an industrial commonly used communication protocol (not limited to the EtherCAT bus protocol), and the transmission cycle does not exceed 1ms. Each controller in the above system can only update and match its own ID location information, but can read other ID information, and the controller information transmission does not affect each other; the data type is not limited to voltage, current, voltage change rate, required power, pressure, flow, temperature, humidity, gas content, fault and failure type.

[0052] The status information of any of the first-type hydrogen production functional modules and the status information of the second-type hydrogen production functional modules include equipment information. The first-type hydrogen production unit 100 and the first-type hydrogen production unit 200 are regarded as subsystems, and each module in the first-type hydrogen production unit 100 and the second-type hydrogen production unit 200 is regarded as equipment. The main strategy controller obtains the above-mentioned adjacent equipment information through a redundant communication network, and coordinates and controls according to the requirements of the system or other subsystems and its own status. It superimposes control signals on the actuators of each device without affecting its own control target, and changes the actual parameters of the corresponding device through the actuators, mainly including its own equipment conditions: not limited to voltage, current, voltage change rate, required power, pressure, flow, temperature, humidity, and gas content; system conditions: not limited to voltage, current, power, hydrogen output pressure, and hydrogen output purity; other equipment operating environments: not limited to temperature, humidity, flow, and alkaline solution purity.

[0053] Furthermore, if Figure 2 and Figure 3 As shown, the above-mentioned hybrid hydrogen production system coordination control device also includes:

[0054] The heat storage system 300 is coupled with the first type of hydrogen production unit 100 and the second type of hydrogen production unit 200; the heat storage controller is connected to the heat storage system 300; the heat storage controller is connected to the redundant communication network, and the heat storage controller controls the heat storage system to provide heat for the first type of hydrogen production unit and / or the second type of hydrogen production unit according to the status information of the first type of hydrogen production function module and / or the status information of the second type of hydrogen production function module and the control strategy through the status information of the adjacent first type of hydrogen production function module and / or the status information of the second type of hydrogen production function module on the redundant communication network and the control strategy. In the present application scheme, each subsystem is connected to the high-speed transmission protocol in pairs through a redundant communication network to obtain the operating data of other subsystems. The heat storage system 300 can provide heat for the first type of hydrogen production unit 100 and the second type of hydrogen production unit 200 under the control of the heat storage controller, and control the temperature of the electrolyzer of the first type of hydrogen production unit 100 and the second type of hydrogen production unit 200 to maintain within the normal operating temperature range.

[0055] Furthermore, the hybrid hydrogen production system coordination control device also includes a power supply system 400, coupled with the adjacent first type hydrogen production unit 100 and the second type hydrogen production unit 200; a power storage controller, connected to the power supply system 400; the power storage controller is connected to the redundant communication network, and the power storage controller obtains the status information of the adjacent first type hydrogen production function module and / or the status information of the second type hydrogen production function module and the control strategy through the redundant communication network, and controls the power supply system 400 to supply power to the first type hydrogen production unit 100 and the second type hydrogen production unit 200 according to the status information of the first type hydrogen production function module and / or the status information of the second type hydrogen production function module and the control strategy. The present application scheme uses the power supply system 400 to maintain the auxiliary power supply of the electrolytic hydrogen production equipment in the first type hydrogen production unit 100 and the second type hydrogen production unit 200 to avoid the system from entering the cold standby state. The present application scheme can improve the response capability of the shutdown equipment, especially the alkaline electrolysis system. The power supply system 400 is not limited to a small energy storage system or a fuel cell power generation system. Through the above scheme, the heat storage system 300 and the power supply system 400 can store heat and electricity when the new energy power generation is abundant, and provide heat for the alkaline electrolysis hydrogen production unit when the faulty system shuts down; the power supply system 400 can provide electrical energy for the auxiliary power supply equipment of the faulty electrolysis system to maintain the energy demand of the auxiliary equipment.

[0056] As shown in the figure, the hybrid hydrogen production system coordination control device also includes a new energy power supply unit 500, which is connected to the redundant communication network and sends power supply information to the adjacent main strategy controller through the redundant communication network; the main strategy controller receives the power supply information and adjusts the control strategy according to the power supply information so that the control strategy adapts to the fluctuations in the power supply information. The new energy power supply unit 500 may include a photovoltaic power supply unit and a wind power supply unit, and in practical applications, power supply units such as tidal energy and biomass energy may also be used.

[0057] When the new energy power supply unit 500 provides electric energy, since the energy provided by new energy sources such as light energy and wind energy may fluctuate, there may also be fluctuations when converting it into electric energy. To this end, the adjacent master strategy controller parses the fluctuations in the power supply information; the master strategy controller parses the hydrogen output speed, fault information and failure information in the status information of the first type of hydrogen production function module and the status information of the second type of hydrogen production function module; the master strategy controller generates a control strategy based on the fluctuations, the hydrogen output speed, the fault information and the failure information.

[0058] After acquiring the status information and power supply information of each hydrogen production functional module, the main strategy controller can analyze the coordination and matching of the power supply information and the status information, thereby determining a coordinated control strategy that can coordinately control each hydrogen production functional module.

[0059] In some schemes, such as Figure 4 As shown, the embodiment of the present application provides a coordinated control method for a hybrid hydrogen production system, comprising:

[0060] S10: Acquire status information of each hydrogen production function module in each hydrogen production unit through a redundant communication network, wherein the redundant communication network connects the hydrogen production function modules in pairs.

[0061] S20: Determine a control strategy according to the status information of each hydrogen production functional module, wherein the control strategy includes control instructions for controlling each hydrogen production functional module.

[0062] S30: Sending the control strategy to adjacent hydrogen production functional modules via the redundant communication network.

[0063] The above-mentioned scheme provided by the present application enables rapid data exchange between devices, including point-to-point information exchange, through a redundant communication network that interconnects devices in a hybrid hydrogen production system, thereby providing data support for coordinated control between system devices. Compared with the single device control method in the prior art, the control method provided by the present application enables the output of each sub-module to not only meet its own instruction requirements, but also meet the operating requirements of the system layer or other sub-modules, thereby ensuring reliable and stable operation of the equipment.

[0064] Furthermore, the hybrid hydrogen production system coordinated control method further includes:

[0065] S40: The control strategy also includes control instructions for controlling the heat storage system.

[0066] S50: Sending the control strategy of the adjacent first-type hydrogen production unit or the second first-type hydrogen production unit to the heat storage controller of the heat storage system through the redundant communication network, and the heat storage controller controls the heat storage system to provide heat to the hydrogen production unit when the temperature of the hydrogen production unit is low according to the control strategy.

[0067] Through the solution of this application, the heat storage system controls heat to maintain the temperature of the alkaline electrolyzer and ensure the efficiency of hydrogen production.

[0068] Preferably, the coordinated control method of the hybrid hydrogen production system in the above scheme further includes:

[0069] S60: The control strategy further includes control instructions for controlling the power supply system;

[0070] S70: Send the control strategy of the adjacent first-class hydrogen production unit or the second first-class hydrogen production unit to the power storage controller of the power supply system through the redundant communication network; the power supply system is used to supplement or store electric energy when the power supply information of the new energy power supply unit fluctuates. The power supply unit is used to maintain auxiliary power supply for alkaline and PEM electrolysis hydrogen production equipment to avoid the system entering a cold standby state, in order to improve the responsiveness of shutdown equipment, especially alkaline electrolysis systems. The power supply unit is not limited to small energy storage systems and fuel cell power generation systems.

[0071] Through the above-mentioned device and method provided by the present application, each module in the hybrid hydrogen production system can be interconnected, and any module can transmit information obtained by it to other modules through the redundant communication network. Correspondingly, each module can also receive information sent by other modules through the redundant communication network. As a specific example, Figure 1 and Figure 2Taking the system shown as an example, the system includes several alkaline electrolysis hydrogen production systems and several PEM electrolysis hydrogen production systems. The hydrogen production power supply controller, electrolyzer auxiliary machine controller, and power storage and heat storage controllers in each subsystem are connected in pairs through a redundant communication network and a high-speed transmission protocol to obtain the operating data of other subsystems, including but not limited to voltage, current, voltage change rate, required power, fault status and type. Based on the acquired operating data, each controller fault decision module evaluates the type, urgency, and self-relevance of the fault, determines whether its own control equipment needs to participate in the coordinated action, and determines the response speed. Taking the electrical hardware failure of a subsystem hydrogen production power supply as an example, when the hydrogen production power supply controller detects the fault, it is transmitted to the controllers of each submodule through high-speed communication. When each subsystem detects the fault, it is evaluated that the fault is likely to cause system-level load fluctuations, and it is a type of fault that requires rapid response. In order to take into account the differences in efficiency, operating range and dynamic response characteristics of each sub-electrolysis hydrogen production system, the PEM electrolysis hydrogen production system controller is defined as an active adjustment device, and the alkaline electrolysis hydrogen production system controller is defined as a passive adjustment device. When the faulty unit is shut down or unloaded, the PEM can achieve rapid response to decision instructions by adjusting control parameters, while the alkaline electrolysis system passively tracks. Among them, the power fluctuation caused by the removal or load reduction of the faulty unit can be compensated by power command through power sharing algorithm or daisy chain power distribution to realize the dynamic adjustment process of the system; after the fault decision function module instruction takes effect, according to the fault type of the faulty equipment and its own correlation, each controller completes the performance recovery of the faulty equipment by changing the operating conditions of the faulty equipment, not limited to changing the current density, equipment start-stop frequency, pressure flow temperature adjustment, and the performance recovery type is not limited to catalyst self-repair, membrane plate hydrogen and oxygen aggregation and diffusion, reducing high-frequency impedance, extending the service life of the electrode plate and membrane, and realizing the auxiliary failure recovery of the faulty equipment. If there is an alkaline electrolysis device or PEM electrolysis hydrogen production device in the hybrid hydrogen production system, the heat converted from the abundant electricity of new energy can be used to maintain the temperature of the alkaline electrolysis cell, and the power supply unit can be used to maintain the auxiliary power supply of the alkaline and PEM electrolysis hydrogen production equipment to avoid the system entering the cold standby state, with the purpose of improving the responsiveness of the shutdown equipment, especially the alkaline electrolysis system. The power supply unit is not limited to small energy storage systems and fuel cell power generation systems.

[0072] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of this application.

Claims

1. A coordinated control device for a hybrid hydrogen production system, characterized in that: include: A first type of hydrogen production unit, comprising a first control device and a first type of hydrogen production functional module connected to the first control device; A second type of hydrogen production unit, comprising a second control device and a second type of hydrogen production functional module connected to the second control device; A redundant communication network is used to connect the first control device and the second control device in pairs for communication, wherein the first control device sends the status information of the first type of hydrogen production functional module to the adjacent first control device or second control device through the redundant communication network, and the second control device sends the status information of the second type of hydrogen production functional module to the adjacent first control device or second control device through the redundant communication network; A main strategy controller is connected to the redundant communication network, and the main strategy controller receives status information of the adjacent first-type hydrogen production functional module and / or status information of the second-type hydrogen production functional module from the redundant communication network, generates a control strategy for the first-type hydrogen production unit and / or the second-type hydrogen production unit, and sends the control strategy to the adjacent first control device and / or the second control device through the redundant communication network.

2. The coordinated control device for a hybrid hydrogen production system according to claim 1, characterized in that: The first type of hydrogen production unit is a PEM hydrogen production unit, and the first type of hydrogen production functional module includes a PEM hydrogen production power supply, a PEM electrolyzer, a first gas-liquid separation module and a first hydrogen purification module; The first control device includes a PEM controller and a PEM auxiliary controller, the PEM controller is used to control the PEM hydrogen production power supply, and the PEM auxiliary controller is used to control the PEM electrolyzer, the first gas-liquid separation module and the first hydrogen purification module; the PEM controller and the PEM auxiliary controller are communicatively connected to communicate with each other and are used to communicatively connect any two of the PEM hydrogen production power supply, the PEM electrolyzer, the first gas-liquid separation module and the first hydrogen purification module.

3. The coordinated control device for a hybrid hydrogen production system according to claim 1, characterized in that: The second type of hydrogen production unit is an alkaline electrolysis hydrogen production unit, and the second type of hydrogen production functional module includes an alkaline hydrogen production power supply, an alkaline electrolyzer, a second gas-liquid separation module and a second hydrogen purification module; The second control device includes an alkaline controller and an alkaline auxiliary controller, the alkaline controller is used to control the alkaline hydrogen production power supply, and the alkaline auxiliary controller is used to control the alkaline electrolyzer, the second gas-liquid separation module and the second hydrogen purification module; the alkaline controller and the alkaline auxiliary controller are communicatively connected to communicate with each other and are used to communicatively connect any two of the alkaline hydrogen production power supply, the alkaline electrolyzer, the second gas-liquid separation module and the second hydrogen purification module.

4. The coordinated control device for a hybrid hydrogen production system according to claim 1, characterized in that: Also includes: a heat storage system coupled to the first type of hydrogen production unit and the second type of hydrogen production unit; A heat storage controller connected to the heat storage system; The heat storage controller is connected to the redundant communication network, and receives status information of the adjacent first-type hydrogen production functional modules and / or status information of the second-type hydrogen production functional modules on the redundant communication network and the control strategy, and controls the heat storage system to supply heat to the first-type hydrogen production unit and / or the second-type hydrogen production unit according to the status information of the first-type hydrogen production functional modules and / or status information of the second-type hydrogen production functional modules and the control strategy.

5. The coordinated control device for a hybrid hydrogen production system according to claim 4, characterized in that: Also includes: a power supply system coupled to the first type of hydrogen production unit and the second type of hydrogen production unit; A power storage controller connected to the power supply system; The power storage controller is connected to the redundant communication network, and receives status information of the adjacent first-type hydrogen production functional modules and / or status information of the second-type hydrogen production functional modules on the redundant communication network as well as the control strategy, and controls the power supply system to supply power to the first-type hydrogen production unit and / or the second-type hydrogen production unit according to the status information of the first-type hydrogen production functional modules and / or status information of the second-type hydrogen production functional modules and the control strategy.

6. The coordinated control device for a hybrid hydrogen production system according to any one of claims 1 to 5, characterized in that: Also includes: A new energy power supply unit, the new energy power supply unit is connected to the redundant communication network, and sends power supply information to the main strategy controller through the redundant communication network; The main strategy controller receives the power supply information, and adjusts the control strategy according to the power supply information so that the control strategy adapts to the fluctuation in the power supply information.

7. The coordinated control device for a hybrid hydrogen production system according to claim 6, characterized in that: The main strategy controller analyzes fluctuations in the power supply information; The main strategy controller analyzes the hydrogen output speed, fault information and failure information in the status information of the first type of hydrogen production function module and the status information of the adjacent first type of hydrogen production function module or second type of hydrogen production function module; The main strategy controller generates a control strategy according to the fluctuation, the hydrogen output speed, the fault information and the failure information.

8. A coordinated control method for a hybrid hydrogen production system, characterized in that: include: Acquiring status information of each hydrogen production function module in adjacent hydrogen production units through a redundant communication network, wherein the redundant communication network connects the hydrogen production function modules in pairs; Determine a control strategy according to the status information of each hydrogen production functional module, wherein the control strategy includes control instructions for controlling each hydrogen production functional module; The control strategy is sent to adjacent hydrogen production functional modules through the redundant communication network.

9. The coordinated control method of the hybrid hydrogen production system according to claim 8, characterized in that: Also includes: The control strategy also includes control instructions for controlling the thermal storage system The control strategy of the adjacent first-class hydrogen production unit or the second first-class hydrogen production unit is sent to the heat storage controller of the heat storage system through the redundant communication network, and the heat storage controller controls the heat storage system according to the control strategy to provide heat to the adjacent first-class hydrogen production unit or the second first-class hydrogen production unit when the temperature of the hydrogen production unit is low.

10. The coordinated control method of the hybrid hydrogen production system according to claim 9, characterized in that: Also includes: The control strategy also includes control instructions for controlling the power supply system; Sending the control strategy of the adjacent first-type hydrogen production unit or the second first-type hydrogen production unit to the power storage controller of the power supply system through the redundant communication network; The power supply system is used to supplement or store electric energy when the power supply information of the new energy power supply unit fluctuates.

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