Control method and device of hydrogen energy ship hybrid power system

Abstract

The application provides a control method and device for a hydrogen energy ship hybrid power system, and relates to the technical field of ship hybrid power systems.The method comprises the following steps: according to the control state of the whole ship power and the states of a battery management subsystem BMS, a hydrogen supply management subsystem HMS and a fuel cell control subsystem FCS, the battery management subsystem BMS and the fuel cell control subsystem FCS are sequentially controlled to enter a running state.The control timing of the battery management subsystem BMS and the fuel cell control subsystem FCS can be corresponded, the situation that the fuel cell control subsystem FCS responds too early during the whole ship power-on process can be avoided to a certain extent, the safety of the hydrogen energy ship hybrid power system is improved, and the service life is prolonged.

Description

Technical Field

[0001] This application relates to the field of marine hybrid power system technology, and in particular to a control method and device for a hydrogen-powered marine hybrid power system. Background Technology

[0002] As environmental problems stemming from global economic growth become increasingly severe, the international community continues to focus on environmental pollution and protection, leading to the concepts of carbon peaking and carbon neutrality. Statistics show that the shipping industry, with its wide range of applications, generates large amounts of sulfur oxides, carbon dioxide, nitrogen oxides, particulate matter, and other air pollutants, causing serious pollution to the environment and atmosphere. Therefore, seeking high-performance, pollution-free new energy sources for ship propulsion systems has become an inevitable trend for the future development of the shipping industry. Proton exchange membrane fuel cells (PEMFCs), as a new type of clean energy power generation system, do not produce carbon dioxide or other exhaust pollutants and have a very high calorific value. Therefore, from a long-term perspective, hydrogen fuel cells can replace traditional diesel engines and gas turbines as an ideal power source for ships. Summary of the Invention

[0003] This application aims to at least partially address one of the technical problems in the related art.

[0004] Therefore, the first aspect of this application proposes a control method for a hydrogen-powered marine hybrid power system, wherein the hydrogen-powered marine hybrid power system includes a battery management subsystem (BMS), a fuel cell control subsystem (FCS), a hydrogen supply management subsystem (HMS), and a ship control subsystem; the method includes:

[0005] In response to the ship's overall power control being in the active state, the battery management subsystem (BMS) and the hydrogen supply management subsystem (HMS) respectively enter the fault self-check state, and the fuel cell control subsystem (FCS) enters the low-pressure self-check state.

[0006] In response to the absence of a fault in the battery management subsystem (BMS), the BMS relay is closed to boost the voltage of the BMS and receive the power demand of the entire ship.

[0007] In response to the battery management subsystem (BMS) voltage rising to the calibrated voltage value and the fuel cell control subsystem (FCS) having no low-voltage fault, the fuel cell control subsystem (FCS) enters a high-voltage self-test state.

[0008] In response to the absence of high-pressure faults in the fuel cell control subsystem (FCS), the total power demand of the ship exceeding a preset power threshold, and the absence of faults in the hydrogen supply management subsystem (HMS), the fuel cell control subsystem (FCS) enters the operating state.

[0009] In some embodiments of this application, the step of the fuel cell control subsystem FCS entering the operating state in response to the absence of a high-voltage fault in the fuel cell control subsystem FCS, the fact that the total power demand of the ship is greater than a preset power threshold, and the hydrogen supply management subsystem HMS is fault-free includes: the fuel cell control subsystem FCS entering a standby state in response to the absence of a high-voltage fault in the fuel cell control subsystem FCS; the total power demand of the ship being greater than a preset power threshold, the ship control subsystem sending a fuel cell start-up command to the fuel cell control subsystem FCS; and the fuel cell control subsystem FCS entering the operating state in response to receiving the fuel cell start-up command and the hydrogen supply management subsystem HMS being fault-free.

[0010] In some embodiments of this application, the method further includes: in response to a fault in the battery management subsystem (BMS), the BMS enters a fault latch state; or, in response to a first fault in the fuel cell control subsystem (FCS), the FCS enters a fault latch state; the first fault includes a low-pressure fault and / or a high-pressure fault; or, in response to a fault in the hydrogen supply management subsystem (HMS), the HMS enters a fault latch state.

[0011] In some embodiments of this application, when the fuel cell control subsystem FCS is in operation, the method further includes: in response to a failure of the battery management subsystem BMS or a failure of the hydrogen supply management subsystem HMS, the fuel cell control subsystem FCS performs an emergency shutdown action and enters a fault state; disconnecting the BMS relay to complete the power-off of the entire ship.

[0012] In some embodiments of this application, the method further includes: in response to a level 3 fault in the fuel cell control subsystem (FCS), the FCS performs an emergency shutdown and enters a fault state; or, in response to a level 2 fault in the FCS, the FCS performs a fault shutdown; or, in response to receiving a shutdown command, the FCS performs a shutdown.

[0013] In some embodiments of this application, the method further includes: disconnecting the BMS relay in response to the fuel cell control subsystem FCS being in a shutdown state and the ship power control state being in a closed state; driving the motor to enter a discharge state; and interrupting ship communication in response to the bus voltage connected to the battery management subsystem BMS being lower than a preset voltage threshold, thereby completing the ship power-off process.

[0014] A second aspect of this application discloses a control device for a hydrogen-powered marine hybrid power system, wherein the hydrogen-powered marine hybrid power system includes a battery management subsystem (BMS), a fuel cell control subsystem (FCS), a hydrogen supply management subsystem (HMS), and a ship control subsystem; the device includes:

[0015] The fault detection module is used to control the battery management subsystem (BMS) and the hydrogen supply management subsystem (HMS) to enter fault self-check state respectively, and to control the fuel cell control subsystem (FCS) to enter low-pressure self-check state in response to the ship's power control being in the on state.

[0016] The BMS startup module is used to close the BMS relay in response to the absence of a fault in the battery management subsystem (BMS), so that the battery management subsystem (BMS) can boost the voltage and receive the power demand of the entire ship.

[0017] The FCS high-voltage detection module is used to respond to the battery management subsystem (BMS) voltage value rising to the calibrated voltage value and the fuel cell control subsystem (FCS) having no low-voltage fault, so that the fuel cell control subsystem (FCS) enters a high-voltage self-test state.

[0018] The FCS start-up module is used to respond to the fact that the fuel cell control subsystem FCS has no high-pressure fault, the total power demand of the ship is greater than a preset power threshold, and the hydrogen supply management subsystem HMS has no fault, so that the fuel cell control subsystem FCS enters the operating state.

[0019] In some embodiments of this application, the device further includes a shutdown module; wherein the shutdown module is configured to: in response to a failure of the battery management subsystem (BMS) or a failure of the hydrogen supply management subsystem (HMS), the fuel cell control subsystem (FCS) performs an emergency shutdown action and enters a fault state; disconnect the BMS relay to complete the power-off of the entire ship.

[0020] In some embodiments of this application, the shutdown module is further configured to: in response to a Level 3 fault in the fuel cell control subsystem (FCS), the FCS performs an emergency shutdown action and enters a fault state; or, in response to a Level 2 fault in the FCS, the FCS performs a fault shutdown action; or, in response to receiving a shutdown command, the FCS performs a shutdown action.

[0021] In some embodiments of this application, the shutdown module is further configured to: disconnect the BMS relay in response to the fuel cell control subsystem FCS being in a shutdown state and the ship power control state being in a shutdown state; drive the motor to enter a discharge state; and interrupt ship communication and complete ship power-off in response to the bus voltage connected to the battery management subsystem BMS being lower than a preset voltage threshold.

[0022] A third aspect of this application discloses an electronic device comprising:

[0023] processor;

[0024] A memory for storing processor-executable instructions; wherein the instructions are executed by the processor to enable the processor to perform the method described in the first aspect above.

[0025] A fourth aspect of this application provides a non-transitory computer-readable storage medium, characterized in that, when instructions in the storage medium are executed by a processor of an electronic device, the electronic device is able to perform the method described in the first aspect above.

[0026] According to the control method of the hydrogen-powered marine hybrid power system in this application, based on the overall ship power control status and the fault conditions of the Battery Management Subsystem (BMS), Fuel Cell Control Subsystem (FCS), and Hydrogen Supply Management Subsystem (HMS), the BMS and FCS are sequentially activated to complete the ship's power-up process. The control method of the hydrogen-powered marine hybrid power system proposed in this application ensures that the control timing of the BMS and FCS corresponds, thus avoiding premature response of the FCS during the ship's power-up process to a certain extent, improving the safety of the hydrogen-powered marine hybrid power system operation and increasing its service life.

[0027] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0028] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0029] Figure 1 A schematic flowchart illustrating a control method for a hydrogen-powered marine hybrid power system provided in an embodiment of this application;

[0030] Figure 2 A schematic diagram of a hydrogen-powered marine hybrid power system provided in an embodiment of this application;

[0031] Figure 3A schematic flowchart illustrating another control method for a hydrogen-powered marine hybrid power system provided in an embodiment of this application;

[0032] Figure 4 A schematic diagram of a control device for a hydrogen-powered marine hybrid power system provided in an embodiment of this application;

[0033] Figure 5 A schematic diagram of a control device for another hydrogen-powered marine hybrid power system provided in an embodiment of this application;

[0034] Figure 6 This is a structural block diagram of an electronic device provided in an embodiment of this application. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0036] In related technologies, during the control of hybrid power systems such as fuel cells and lithium batteries, problems such as premature fuel cell response may occur, and even more serious dangerous situations such as insulation and leakage control timing abnormalities may arise. Therefore, this application proposes a control method and apparatus for a hydrogen-powered marine hybrid power system to optimize the control of the hydrogen-powered marine hybrid power system. Specifically, the control method and apparatus for a hydrogen-powered marine hybrid power system according to embodiments of this application are described below with reference to the accompanying drawings.

[0037] Figure 1 This is a flowchart illustrating a control method for a hydrogen-powered marine hybrid power system provided in an embodiment of this application. It should be noted that, to better understand the control method for the hydrogen-powered marine hybrid power system provided in this application embodiment, the hydrogen-powered marine hybrid power system is first described. For example... Figure 2As shown, the hydrogen-powered marine hybrid power system includes a battery management subsystem (BMS201), a fuel cell control subsystem (FCS202), a hydrogen supply management subsystem (HMS203), and a ship control subsystem (204). The BMS201 includes a lithium battery controller for managing the water, heat, and energy of the BMS. The FCS includes a fuel cell controller (FCU). There can be one or more FCSs, such as two, to accommodate the multiple energy sources available for the hydrogen-powered marine hybrid power system and increase propulsion output. The HMS203 provides energy to the FCS for chemical reactions. A DC / DC converter connects the BMS201 and FCS202 to the bus, precisely controlling the energy flow of the two systems and mitigating large energy fluctuations at the bus. The signals generated by the lithium battery controller in the battery management subsystem BMS201 and the fuel cell controller FCU in the fuel cell control subsystem FCS202 will be sent to the ship control subsystem 204. The ship control subsystem 204 will coordinate and control the battery management subsystem BMS201 and the fuel cell control subsystem FCS according to the signals generated by each controller.

[0038] like Figure 1 As shown, the control method for this hydrogen-powered marine hybrid power system includes the following steps:

[0039] Step 101: In response to the ship's power control being in the on state, the Battery Management Subsystem (BMS) and the Hydrogen Supply Management Subsystem (HMS) enter fault self-check state respectively, and the Fuel Cell Control Subsystem (FCS) enters low-pressure self-check state.

[0040] It should be noted that the overall vessel power control status can be controlled via a key. For example, when the operator turns the key used to control the hybrid power system to the ON position, the overall vessel power control status is activated. Alternatively, the overall vessel power control status can be controlled via buttons.

[0041] In some embodiments of this application, the Battery Management Subsystem (BMS) enters a fault self-check state to check for low-pressure or high-pressure faults. The Hydrogen Supply Management Subsystem (HMS) enters a fault self-check state to check for level 2 or level 3 faults (HMS fault types are classified as level 1, level 2, and level 3, with level 3 being the most severe). The Fuel Cell Control Subsystem (FCS) enters a low-pressure self-check state to check for level 2 or level 3 low-pressure faults (FCS low-pressure fault types are classified as level 1, level 2, and level 3, with level 3 being the most severe).

[0042] Step 102: In response to the absence of a fault in the Battery Management Subsystem (BMS), the BMS relay is closed to boost the voltage of the BMS and receive the power demand of the entire ship.

[0043] Optionally, in some embodiments of this application, if the Battery Management Subsystem (BMS) malfunctions, the BMS enters a fault latching state. If the BMS is not faulty, the BMS relay is closed to boost the voltage in the BMS, bringing it into a high-voltage state for the entire ship.

[0044] Step 103: In response to the battery management subsystem (BMS) voltage rising to the calibrated voltage value and the fuel cell control subsystem (FCS) having no low-voltage fault, the fuel cell control subsystem (FCS) enters the high-voltage self-test state.

[0045] Optionally, in some embodiments of this application, if a low-voltage fault exists in the fuel cell control subsystem (FCS), the FCS enters a fault latching state. If there is no low-voltage fault in the FCS, and the battery management subsystem (BMS) voltage rises to the calibrated voltage value, such as 550V, the FCS enters a high-voltage self-test state to check for the presence of a high-voltage fault.

[0046] Step 104: In response to the absence of high-pressure faults in the fuel cell control subsystem (FCS), the total power demand of the ship being greater than the preset power threshold, and the absence of faults in the hydrogen supply management subsystem (HMS), the fuel cell control subsystem (FCS) enters the operating state.

[0047] As one possible implementation, the Fuel Cell Control Subsystem (FCS) enters a standby state when there is no high-voltage fault. If the total ship power demand received by the Battery Management Subsystem (BMS) exceeds a preset power threshold, the ship control subsystem sends a fuel cell start-up command to the FCS. For example, assuming the preset power threshold P_BMS is 80kW, the total ship power demand P_Order received by the BMS is 100kW, and the FCS is in standby mode, the ship control subsystem sends a fuel cell start-up command to the FCS. After receiving the start-up command, and provided the Hydrogen Supply Management Subsystem (HMS) is fault-free (i.e., there is no secondary or tertiary fault), the FCS enters the operating state. In other words, at this point, both the BMS and FCS in the hydrogen-powered marine hybrid power system are operational.

[0048] Optionally, in some embodiments of this application, if the fuel cell control subsystem (FCS) experiences a high-voltage fault, the FCS enters a fault latch state. If the hydrogen supply management subsystem (HMS) experiences a level 2 or level 3 fault, the HMS enters a fault latch state.

[0049] According to the control method of the hydrogen-powered marine hybrid power system in this application, based on the overall ship power control status and the fault conditions of the Battery Management Subsystem (BMS), Fuel Cell Control Subsystem (FCS), and Hydrogen Supply Management Subsystem (HMS), the BMS and FCS are sequentially activated to complete the ship's power-up process. The control method of the hydrogen-powered marine hybrid power system proposed in this application ensures that the control timing of the BMS and FCS corresponds, thus avoiding premature response of the FCS during the ship's power-up process to a certain extent, improving the safety of the hydrogen-powered marine hybrid power system operation and increasing its service life.

[0050] It should be noted that, for hydrogen-powered marine hybrid power systems, in addition to safe power-on control, the control method for hydrogen-powered marine hybrid power systems provided in this application embodiment may also include safe power-off control. Figure 3 This is a schematic flowchart illustrating another control method for a hydrogen-powered marine hybrid power system provided in an embodiment of this application. Figure 3 As shown, based on the above embodiments, when the fuel cell control subsystem (FCS) is in operation, the control method for this hydrogen-powered marine hybrid power system may also include, but is not limited to, the following steps:

[0051] Step 301: In response to a failure of the Battery Management Subsystem (BMS) or the Hydrogen Supply Management Subsystem (HMS), the Fuel Cell Control Subsystem (FCS) performs an emergency shutdown and enters a fault state.

[0052] It should be noted that a failure in the Battery Management Subsystem (BMS) refers to a serious failure, while a failure in the Hydrogen Supply Management Subsystem (HMS) can be a serious failure such as a severe hydrogen leak.

[0053] Step 302: Disconnect the BMS relay to complete the power-off of the entire ship.

[0054] In other words, in the event of a serious malfunction in the Battery Management System (BMS) or the Hydrogen Supply Management System (HMS), the power-off process for the Fuel Cell Control System (FCS) and the BMS is completed sequentially. After the FCS is shut down, the BMS is then shut down, completing the overall power-off of the vessel.

[0055] Step 303: In response to a Level 3 fault in the fuel cell control subsystem (FCS), the FCS performs an emergency shutdown and enters a fault state.

[0056] It should be noted that in the event of a Level 3 fault in the fuel cell control subsystem (FCS), the FCS will perform an emergency shutdown, and the entire ship will enter pure electric mode. In other words, the hydrogen marine hybrid power system will rely solely on the battery management subsystem (BMS) for energy.

[0057] Step 304: In response to a Level 2 fault in the fuel cell control subsystem (FCS), the FCS performs a fault shutdown action.

[0058] It should be noted that in the event of a Level 2 fault in the Fuel Cell Control Subsystem (FCS), the FCS will execute a fault shutdown action, and the entire ship will enter pure electric mode.

[0059] Step 305: In response to the fuel cell control subsystem FCS receiving a shutdown command, the fuel cell control subsystem FCS executes a shutdown action.

[0060] In other words, if there is no Level 2 or Level 3 fault in the fuel cell control subsystem (FCS), the FCS can be shut down based on the shutdown command received by the FCS, and the entire ship can enter pure electric mode to save energy.

[0061] Step 306: In response to the fuel cell control subsystem (FCS) being in a shutdown state and the overall ship power control state being in a closed state, disconnect the BMS relay.

[0062] It should be noted that the operator can control the overall power control status of the vessel using the key used to control the hybrid power system. For example, if the operator turns the key to control the hybrid power system to the OFF position, the overall power control status of the vessel is turned off.

[0063] Step 307: The drive motor enters the discharge state.

[0064] Step 308: In response to the bus voltage connected to the battery management subsystem (BMS) being lower than a preset voltage threshold, the ship's communication is interrupted, and the ship is powered down.

[0065] Optionally, the preset voltage threshold can be set to 50V. That is, when the fuel cell control subsystem (FCS) is powered off, the battery management subsystem (BMS) is shut down based on the overall ship power control status, completing the ship's power-off process.

[0066] According to the control method for a hydrogen-powered marine hybrid power system according to embodiments of this application, after the hydrogen-powered marine hybrid power system is safely powered on, the battery management subsystem (BMS) and the fuel cell control subsystem (FCS) are sequentially shut down according to different faults and shutdown commands to complete the ship's power-off process. The control method for a hydrogen-powered marine hybrid power system proposed in this application ensures that the control timing of the BMS and FCS corresponds during the power-on and power-off processes of the hydrogen-powered marine hybrid power system. This avoids, to a certain extent, situations where the FCS responds too early during the ship's power-on process or the BMS shuts down too early during the power-off process, further improving the operational safety of the hydrogen-powered marine hybrid power system and increasing its service life.

[0067] Figure 4 This is a schematic diagram of a control device for a hydrogen-powered marine hybrid power system provided in an embodiment of this application. The hydrogen-powered marine hybrid power system includes a battery management subsystem (BMS), a fuel cell control subsystem (FCS), a hydrogen supply management subsystem (HMS), and a ship control subsystem. Figure 4 As shown, the control device of this hydrogen-powered marine hybrid power system includes: a fault detection module 401, a BMS start-up module 402, an FCS high-voltage detection module 403, and an FCS start-up module 404. Among them,

[0068] The fault detection module 401 is used to respond to the fact that the ship's power control is in the on state, control the battery management subsystem BMS and the hydrogen supply management subsystem HMS to enter the fault self-test state respectively, and control the fuel cell control subsystem FCS to enter the low pressure self-test state.

[0069] BMS startup module 402 is used to close the BMS relay in response to the absence of a fault in the battery management subsystem (BMS), so that the battery management subsystem (BMS) can boost the voltage and receive the power demand of the entire ship.

[0070] The FCS high-voltage detection module 403 is used to respond to the rise of the battery management subsystem (BMS) voltage value to the calibrated voltage value and the absence of a low-voltage fault in the fuel cell control subsystem (FCS), in which the FCS enters a high-voltage self-test state.

[0071] The FCS start-up module 404 is used to respond to the fact that the fuel cell control subsystem FCS has no high-pressure fault, the power demand of the whole ship is greater than the preset power threshold, and the hydrogen supply management subsystem HMS has no fault, so that the fuel cell control subsystem FCS enters the operating state.

[0072] Optionally, in some embodiments of this application, such as Figure 5 As shown, the device may also include a shutdown module 505. The shutdown module 505 is used to: in response to a failure in the Battery Management Subsystem (BMS) or the Hydrogen Supply Management Subsystem (HMS), cause the Fuel Cell Control Subsystem (FCS) to perform an emergency shutdown and enter a fault state; and disconnect the BMS relay to complete the power-off of the entire vessel.

[0073] Optionally, in some embodiments of this application, the shutdown module 505 is further configured to: in response to a level 3 fault in the fuel cell control subsystem FCS, perform an emergency shutdown action and enter a fault state; or, in response to a level 2 fault in the fuel cell control subsystem FCS, perform a fault shutdown action; or, in response to receiving a shutdown command, perform a shutdown action.

[0074] Optionally, in some embodiments of this application, the shutdown module 505 is further configured to: disconnect the BMS relay in response to the fuel cell control subsystem FCS being in a shutdown state and the overall ship power control state being in a shutdown state; drive the motor to enter a discharge state; and interrupt the overall ship communication in response to the bus voltage connected to the battery management subsystem BMS being lower than a preset voltage threshold, thereby completing the overall ship power-off.

[0075] Regarding the apparatus in the above embodiments, the specific manner in which each module performs its operation has been described in detail in the embodiments related to the method, and will not be elaborated upon here.

[0076] According to the control device of the hydrogen-powered marine hybrid power system in this application, based on the overall ship power control status and the fault conditions of the battery management subsystem (BMS), fuel cell control subsystem (FCS), and hydrogen supply management subsystem (HMS), the BMS and FCS are sequentially activated to complete the ship's power-up process. The control method for the hydrogen-powered marine hybrid power system proposed in this application ensures that the control timing of the BMS and FCS corresponds, thus avoiding premature response of the FCS during ship power-up to a certain extent, improving the safety of the hydrogen-powered marine hybrid power system operation, and increasing its service life.

[0077] To implement the above embodiments, this application also provides an electronic device. Figure 6 This is a structural block diagram of an electronic device provided in an embodiment of this application. Figure 6 As shown, the electronic device 600 may include a memory 601, a processor 602, and a computer program 603 stored in the memory 601 and executable on the processor 602. When the processor 602 executes the computer program 603, it executes the control method of the hydrogen-powered marine hybrid power system described in any of the above embodiments of this application.

[0078] To implement the above embodiments, this application also proposes a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the control method of the hydrogen-powered marine hybrid power system described in any of the above embodiments of this application.

[0079] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0080] Any process or method description in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0081] It should be understood that various parts of this application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0082] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0083] Furthermore, the functional units in the various embodiments of this application can be integrated into a processing module, or each unit can exist physically separately, or two or more units can be integrated into a module. The integrated module can be implemented in hardware or as a software functional module. If the integrated module is implemented as a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium.

[0084] The storage medium mentioned above can be a read-only memory, a disk, or an optical disk, etc. Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of this application.

Claims

1. A control method for a hydrogen-powered marine hybrid power system, characterized in that, The hydrogen-powered marine hybrid power system includes a battery management subsystem (BMS), a fuel cell control subsystem (FCS), a hydrogen supply management subsystem (HMS), and a ship control subsystem; the method includes: In response to the ship's overall power control being in the active state, the battery management subsystem (BMS) and the hydrogen supply management subsystem (HMS) respectively enter the fault self-check state, and the fuel cell control subsystem (FCS) enters the low-pressure self-check state. In response to the absence of a fault in the battery management subsystem (BMS), the BMS relay is closed to boost the voltage of the BMS and receive the power demand of the entire ship. In response to the battery management subsystem (BMS) voltage rising to the calibrated voltage value and the fuel cell control subsystem (FCS) having no low-voltage fault, the fuel cell control subsystem (FCS) enters a high-voltage self-test state. In response to the absence of high-pressure faults in the fuel cell control subsystem (FCS), the total power demand of the ship being greater than a preset power threshold, and the absence of faults in the hydrogen supply management subsystem (HMS), the fuel cell control subsystem (FCS) enters the operating state. In response to the absence of a high-pressure fault in the fuel cell control subsystem (FCS), the ship's overall power demand exceeding a preset power threshold, and the absence of a fault in the hydrogen supply management subsystem (HMS), the FCS enters operational status, including: In response to the absence of a high-voltage fault in the fuel cell control subsystem (FCS), the fuel cell control subsystem (FCS) enters a standby state. In response to the fact that the total power demand of the ship exceeds a preset power threshold, the ship control subsystem sends a fuel cell start command to the fuel cell control subsystem (FCS). In response to the fuel cell control subsystem FCS receiving the fuel cell start-up command and the hydrogen supply management subsystem HMS being fault-free, the fuel cell control subsystem FCS enters the operating state. When the fuel cell control subsystem (FCS) is in operation, the method further includes: In response to a failure of the Battery Management Subsystem (BMS) or the Hydrogen Supply Management Subsystem (HMS), the Fuel Cell Control Subsystem (FCS) performs an emergency shutdown and enters a fault state. Disconnect the BMS relay to complete the power-off of the entire ship.

2. The method according to claim 1, characterized in that, The method further includes: In response to a fault in the battery management subsystem (BMS), the BMS enters a fault latch state; or, The fuel cell control subsystem (FCS) experiences a first fault, and the FCS enters a fault latch state; the first fault includes a low-pressure fault and / or a high-pressure fault; or... The hydrogen supply management subsystem (HMS) is malfunctioning and has entered a fault latching state.

3. The method according to claim 1, characterized in that, The method further includes: In response to a Level 3 fault in the fuel cell control subsystem (FCS), the FCS executes an emergency shutdown and enters a fault state; or... In response to a Level 2 fault in the fuel cell control subsystem (FCS), the FCS performs a fault shutdown; or, In response to receiving a shutdown command, the fuel cell control subsystem (FCS) performs a shutdown operation.

4. The method according to claim 3, characterized in that, The method further includes: In response to the fuel cell control subsystem (FCS) being in a shutdown state and the overall ship power control state being in a closed state, the BMS relay is disconnected; The drive motor enters the discharge state; In response to the bus voltage connected to the battery management subsystem (BMS) falling below a preset voltage threshold, the ship's communication is interrupted, and the ship is powered down.

5. A control device for a hydrogen-powered marine hybrid power system, characterized in that, The hydrogen-powered marine hybrid power system includes a battery management subsystem (BMS), a fuel cell control subsystem (FCS), a hydrogen supply management subsystem (HMS), and a ship control subsystem; the device includes: The fault detection module is used to control the battery management subsystem (BMS) and the hydrogen supply management subsystem (HMS) to enter fault self-check state respectively, and to control the fuel cell control subsystem (FCS) to enter low-pressure self-check state in response to the ship's power control state being turned on. The BMS startup module is used to close the BMS relay in response to the absence of a fault in the battery management subsystem (BMS), so that the battery management subsystem (BMS) can boost the voltage and receive the power demand of the entire ship. The FCS high-voltage detection module is used to respond to the battery management subsystem (BMS) voltage value rising to the calibrated voltage value and the fuel cell control subsystem (FCS) having no low-voltage fault, so that the fuel cell control subsystem (FCS) enters a high-voltage self-test state. The FCS start-up module is used to respond to the fact that the fuel cell control subsystem FCS has no high-pressure fault, the power demand of the entire ship is greater than a preset power threshold, and the hydrogen supply management subsystem HMS has no fault, so that the fuel cell control subsystem FCS enters the operating state. In response to the absence of a high-pressure fault in the fuel cell control subsystem (FCS), the ship's overall power demand exceeding a preset power threshold, and the absence of a fault in the hydrogen supply management subsystem (HMS), the FCS enters operational status, including: In response to the absence of a high-voltage fault in the fuel cell control subsystem (FCS), the fuel cell control subsystem (FCS) enters a standby state. In response to the fact that the total power demand of the ship exceeds a preset power threshold, the ship control subsystem sends a fuel cell start command to the fuel cell control subsystem (FCS). In response to the fuel cell control subsystem FCS receiving the fuel cell start-up command and the hydrogen supply management subsystem HMS being fault-free, the fuel cell control subsystem FCS enters the operating state. It also includes: a shutdown module; wherein the shutdown module is used for: In response to a failure of the Battery Management Subsystem (BMS) or the Hydrogen Supply Management Subsystem (HMS), the Fuel Cell Control Subsystem (FCS) performs an emergency shutdown and enters a fault state. Disconnect the BMS relay to complete the power-off of the entire ship.

6. The apparatus according to claim 5, characterized in that, The shutdown module is also used for: In response to a Level 3 fault in the fuel cell control subsystem (FCS), the FCS executes an emergency shutdown and enters a fault state; or... In response to a Level 2 fault in the fuel cell control subsystem (FCS), the FCS performs a fault shutdown action. or, In response to receiving a shutdown command, the fuel cell control subsystem (FCS) performs a shutdown operation.

7. The apparatus according to claim 6, characterized in that, The shutdown module is also used for: In response to the fuel cell control subsystem (FCS) being in a shutdown state and the overall ship power control state being in a closed state, the BMS relay is disconnected; The drive motor enters the discharge state; In response to the bus voltage connected to the battery management subsystem (BMS) falling below a preset voltage threshold, the ship's communication is interrupted, and the ship is powered down.

8. An electronic device, characterized in that, include: processor; A memory for storing processor-executable instructions; wherein the instructions are executed by the processor to enable the processor to perform the method of any one of claims 1-4.

9. A non-transitory computer-readable storage medium, characterized in that, When the instructions in the storage medium are executed by the processor of the electronic device, the electronic device is able to perform the method of any one of claims 1-4.

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