Hydrogen fuel fixed power station

Abstract

The utility model relates to the technical field of hydrogen energy power generation, in particular to a hydrogen fuel fixed power station which comprises a control module, an ACDC module used for converting alternating current into direct current and a multi-path power generation module connected with the ACDC module. Each path of power generation module BOP device is connected with the ACDC module through the path of first switch module, the path of BOP device is also connected with the path of gas-electricity module through the path of second switch module, and the path of PCS module is connected with the path of gas-electricity module; the control module is in communication connection with the first switch module and the second switch module of each power generation module. In the starting process of the power generation module, the control module controls the first switch module to be switched on and the second switch module to be switched off before the gas-electricity module is started; and after the gas-electricity module is started, the second switch module is controlled to be switched on, and the first switch module is switched off. According to the invention, multiple paths of power generation modules can be started in sequence through one ACDC module, the number and cost of ACDC are reduced, and the volume of a hydrogen fuel fixed power station is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy power generation, and in particular to a hydrogen fuel fixed power station. Background Art

[0002] With the continuous growth of global energy demand and the urgent need for environmental protection, the search for clean, efficient alternative energy sources has become a top priority. Among the many alternative energy sources, hydrogen stands out with its unique advantages and is considered a key to future energy transformation. The rapid expansion of stationary hydrogen fuel cells is further driving the development of fuel cells for stationary power generation.

[0003] Currently, typical stationary hydrogen-fueled high-power power plants are assembled from multiple fuel-electric modules, each requiring a dedicated ACDC module to provide high-voltage DC power to the BOP components. Consequently, current stationary hydrogen-fueled high-power power plants typically require multiple ACDC modules to match the fuel-electric modules. This significantly increases the cost of the station. Furthermore, the multiple ACDC modules also make the station bulky and difficult to transport.

[0004] Therefore, there is an urgent need for a hydrogen fuel stationary power station that can reduce the cost and size of the stationary power station. Summary of the Invention

[0005] In view of the above problems in the prior art, the present application provides a hydrogen fuel stationary power station, which can reduce the cost of the station and reduce the size of the stationary power station.

[0006] To achieve the above objectives, the present application provides, in a first aspect, a hydrogen fuel stationary power station, comprising: a control module, an ACDC module for converting AC power into DC power, and multiple power generation modules connected to the ACDC module; wherein each power generation module comprises: a fuel-power module for converting hydrogen fuel into DC power, a PCS module for converting DC power into AC power for output to a load, a first switch module, a second switch module, and a BOP device;

[0007] For each power generation module, the input of the BOP device of the power generation module is connected to the output of the ACDC module through the first switch module of the power generation module, the input of the BOP device of the power generation module is also connected to the output of the fuel-fired power module of the power generation module through the second switch module of the power generation module, and the input of the PCS module of the power generation module is connected to the output of the fuel-fired power module of the power generation module;

[0008] The control module is respectively connected to the first switch module and the second switch module of each power generation module for controlling each power generation module to start in sequence;

[0009] Among them, during the startup process of each power generation module, before the fuel-fired power module of the power generation module is started, the control module controls the first switch module of the power generation module to be closed and the second switch module to be disconnected; and after the fuel-fired power module of the power generation module is started, the control module controls the second switch module of the power generation module to be closed and the first switch module to be disconnected.

[0010] In this embodiment, by controlling the on and off of the switch module, the ACDC module supplies power to the BOP device before the fuel-fired power module is started, and the fuel-fired power module supplies power to the BOP device after the fuel-fired power module is started. Therefore, a single ACDC high-voltage DC power supply can sequentially power multiple fuel-fired power modules, reducing the number and cost of ACDC modules, and thereby reducing the size of the hydrogen fuel fixed power station.

[0011] As a possible implementation of the first aspect, the control module is further used to control the shutdown of each power generation module in sequence: wherein, during the shutdown process of each power generation module, before the fuel-fired power module of the power generation module is shut down, the first switch module of the power generation module is controlled to be closed and the second switch module is controlled to be disconnected; and after the fuel-fired power module of the power generation module is shut down, the first switch module of the power generation module is controlled to be disconnected.

[0012] In this embodiment, the ACDC module maintains power supply to the BOP device before and after the fuel-electric module is shut down, ensuring a smooth transition of the shutdown and extending the life of the equipment.

[0013] As a possible implementation of the first aspect, the fuel-electricity module includes a fuel cell stack and a fuel cell controller; the fuel cell stack is used to convert fuel into direct current and output it; the fuel cell controller is communicatively connected to the control module and is used to operate the fuel cell stack under the control of the control module.

[0014] In this embodiment, the fuel cell stack is precisely controlled by the control module and the fuel cell controller, which facilitates system integration and remote monitoring, and enhances the flexibility and adaptability of the system.

[0015] As a possible implementation of the first aspect, the control module is also communicatively connected to the ACDC module, and is configured to control the ACDC module to start before all power generation modules are started, and to control the ACDC module to shut down after all power generation modules are shut down.

[0016] In this embodiment, the ACDC module is controlled to be turned on before the power generation module is started and turned off after the power generation module is shut down, thereby effectively saving energy.

[0017] As a possible implementation of the first aspect, the control module is further connected to the PCS module, and is configured to control the PCS module to start when the fuel-electricity module outputs direct current.

[0018] A second aspect of the present application provides a control method for a hydrogen fuel stationary power station, which is applied to the above-mentioned hydrogen fuel stationary power station. The control method includes:

[0019] The control module controls each power generation module to start in sequence;

[0020] Among them, the startup process for each power generation module includes: before the fuel-fired power module of the power generation module is started, the control module is used to control the first switch module of the power generation module to be closed and the second switch module to be disconnected, so that the ACDC module supplies power to the BOP device of the power generation module; and after the fuel-fired power module of the power generation module is started, the control module is used to control the second switch module of the power generation module to be closed and the first switch module to be disconnected, so that the fuel-fired power module of the power generation module supplies power to the BOP device of the power generation module.

[0021] In this embodiment, the ACDC module first supplies power to the BOP device, and then switches to the fuel-electric module for power supply, ensuring a smooth startup of the system; a single ACDC high-voltage DC power supply can sequentially power multiple fuel-electric modules, reducing the number of ACDC modules and the cost.

[0022] As a possible implementation of the second aspect, the method further includes: controlling each power generation module to shut down in sequence through a control module;

[0023] The shutdown process for each power generation module includes: before the fuel-fired power module of the power generation module is shut down, the control module is used to control the first switch module of the power generation module to be closed and the second switch module to be disconnected, so that the ACDC module supplies power to the BOP device of the power generation module; and after the fuel-fired power module of the power generation module is shut down, the control module is used to control the first switch module of the power generation module to be disconnected, so as to stop supplying power to the BOP device of the power generation module.

[0024] As a possible implementation of the second aspect, the order in which each power generation module is sequentially shut down is opposite to the order in which each power generation module is sequentially started. In this embodiment, performing shutdown control in the opposite order to the order in which each power generation module is sequentially started can avoid system instability caused by sudden power outages and reduce the impact on the entire hydrogen fuel station and load. Shutting down each module one by one can gradually reduce the system load, facilitating a smooth shutdown and ensuring system stability.

[0025] As a possible implementation of the second aspect, controlling each power generation module to start up in sequence includes:

[0026] Determine whether the output power of each currently started power generation module meets the output power required by the load;

[0027] If the conditions are met, the next power generation module is stopped from starting; otherwise, the next power generation module is started.

[0028] In this embodiment, by monitoring the output power and starting the next power generation module when needed, it can effectively respond to sudden increases in power demand, ensure the continuity and stability of power supply, and meet the application scenario requirements of rapid response to power changes.

[0029] A third aspect of the present application provides a computing device, including:

[0030] processor, and

[0031] A memory stores program instructions thereon, which, when executed by the processor, cause the processor to execute the control method of the hydrogen fuel stationary power plant as described above.

[0032] These and other aspects of the invention will be apparent from and elucidated with reference to the following description of the embodiment(s). BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The following further illustrates the various features of the present invention and the relationships between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, and some features are not shown in actual proportion. In addition, some drawings may omit features that are customary in the field to which this application relates and are not necessary for this application, or additional features that are not necessary for this application may be shown. The combination of the various features shown in the accompanying drawings is not intended to limit this application. In addition, throughout this specification, the same reference numerals refer to the same content. The specific description of the drawings is as follows:

[0034] Figure 1 This is a structural diagram of a hydrogen fuel stationary power station provided in an embodiment of the present application;

[0035] Figure 2 This is a structural diagram of another hydrogen fuel stationary power station provided in an embodiment of the present application;

[0036] Figure 3 This is a topological diagram of the control principle of a hydrogen fuel stationary power station provided in an embodiment of the present application;

[0037] Figure 4 This is a schematic structural diagram of the power supply part of a hydrogen fuel stationary power station provided in an embodiment of the present application;

[0038] Figure 5 This is a flow chart of a control method for a hydrogen fuel stationary power station provided in an embodiment of the present application;

[0039] Figure 6 This is a flow chart of shutdown control for a hydrogen fuel stationary power station provided by an embodiment of the present application;

[0040] Figure 7 It is a structural schematic diagram of a computing device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0041] The technical solution provided by this application is further described below with reference to the accompanying drawings and examples. It should be understood that the system structure and business scenarios provided in the examples of this application are mainly for illustrating possible implementation methods of the technical solution of this application and should not be interpreted as the sole limitation of the technical solution of this application. It is known to those skilled in the art that with the evolution of the system structure and the emergence of new business scenarios, the technical solution provided by this application is also applicable to similar technical problems.

[0042] It should be understood that the hydrogen fuel fixed power station and its control method and computing equipment provided in the embodiments of the present application have the same or similar principles for solving the problems. In the introduction of the following specific embodiments, some repetitions may not be repeated, but these specific embodiments should be regarded as having been referenced to each other and can be combined with each other.

[0043] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. In the event of any inconsistency, the meanings described in this specification or the meanings derived from the contents recorded in this specification shall prevail. In addition, the terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application. In order to accurately describe the technical content in this application and to accurately understand the present invention, the following explanations or definitions are given for the terms used in this specification before describing the specific embodiments:

[0044] 1) Programmable Logic Controller (PLC): This controller uses programmable memory to store and execute instructions for logic operations, sequence control, timing, counting, and arithmetic operations. It controls various types of machinery or production processes through digital or analog input / output (I / O) interfaces. In this application, it is used as a control system for a hydrogen-powered stationary power plant.

[0045] 2) Alternating Current to Direct Current (ACDC): This unit converts AC power into DC power for the normal operation of electronic equipment.

[0046] 3) Power Conversion System (PCS): Responsible for converting the DC power of the fuel cell into AC power and boosting the voltage to supply the grid or other loads with power needs.

[0047] 4) Fuel Cell Unit (FCU): In this application, FCU refers to the control unit associated with the fuel cell system, i.e., the fuel cell controller, which serves as the core control component in the fuel cell power generation system and is responsible for managing the operation of the fuel cell stack.

[0048] 5) BOP (Balance of Plant) devices: In this application, it refers to the general term for all auxiliary systems and components other than the core power generation unit (i.e., hydrogen fuel cell stack), which are used to ensure the normal operation of the hydrogen fuel cell stack.

[0049] Figure 1 Schematic diagram of a hydrogen fuel stationary power station 100 provided in an embodiment of the present application. Figure 1 As shown, the hydrogen fuel station power station provided in this embodiment includes: a control module, an ACDC module for converting AC power into DC power, and multiple power generation modules connected to the ACDC module. Each power generation module includes: a fuel-to-power module for converting hydrogen fuel into DC power, a PCS module for converting DC power into AC power for output to a load, a first switch module, a second switch module, and a BOP device.

[0050] Specifically, for each power generation module, the ACDC module is connected to the output of the ACDC module via the first switch module of that power generation module, and is also connected to the input of the BOP device via the first switch module. The BOP device input of that power generation module is also connected to the output of the fuel cell module of that power generation module via the second switch module of that power generation module, for outputting DC power. The ACDC module can be an AC-to-DC converter that converts external AC power to DC power for operation of components such as the BOP device. For example, it can convert an externally supplied AC 380V power supply into DC 600V power for operation of the BOP device. The first and second switch modules can be relays.

[0051] The fuel-power module, connected to the BOP device via a second switch module, converts fuel into direct current (DC) and outputs it. The PCS module of this power generation module's input is connected to the output of the fuel-power module of this power generation module, converting the DC power of the fuel-power module into alternating current (AC) and outputting it. The fuel-power module includes a fuel cell stack and a fuel cell controller (FCU). The fuel cell stack converts fuel into DC power and outputs it. The fuel cell controller, as the core control component in the fuel cell power generation system, manages the operation of the fuel cell stack. It communicates with the control module and controls the operation of the fuel cell stack according to control commands from the control module. The BOP device is a general term for all auxiliary systems and components other than the core power generation unit (i.e., the fuel cell stack). Its primary function is to provide the necessary fuel and oxygen for the fuel cell system, as well as cool the fuel cells and treat exhaust products. The BOP device includes a fuel processing system, a hydrogen storage and supply system (such as a main hydrogen valve), an air supply system, a cooling system, and water and thermal management systems, such as an air compressor and a water pump. The BOP device also communicates with the control module and is activated or deactivated by the control module. In addition, during the startup process of each power generation module, after the fuel-fired power module of the power generation module is started, the next group of power generation modules are started in sequence according to the power required by the load.

[0052] The PCS module is connected to the fuel cell module and is used to convert the DC power of the fuel cell module into AC power and output it. The PCS module, namely the power conversion system (PCS), is used to convert the DC power generated by the fuel cell module into AC power and output it to the load. In some embodiments, the PCS module may include an input unit and an output unit; specifically, the input unit is connected to the fuel cell stack of the fuel cell module and can transmit the DC power generated by the fuel cell stack to the output unit. The output unit can be a transformer that can convert the DC power of the fuel cell stack transmitted by the input unit into AC power and output it to the load. For example, the DC power output by the fuel cell stack can be converted into AC power, and operations such as voltage increase / decrease can be performed before it is output to the load.

[0053] The control module is respectively communicated with the fuel-electricity module, the first switch module and the second switch module of each power generation module, and is used to control the startup of each power generation module in sequence; wherein, during the startup process of each power generation module, before the fuel-electricity module of the power generation module is started, the control module controls the power generation module to send a closing instruction to the first switch module and an opening instruction to the second switch module; and after the fuel-electricity module of the power generation module is started, the control module sends a closing instruction to the second switch module controlling the power generation module and an opening instruction to the first switch module.

[0054] In some embodiments, the control module can be implemented by a PLC controller and related circuits. In some embodiments, the control module can be implemented by logic circuits to implement the relevant control logic. It is not difficult to understand that when implemented by a PLC controller, more comprehensive control functions can be provided. Some functions described later in this application rely on the implementation of a PLC controller. When implemented by logic circuits, the functions implemented are relatively simple. When the goal is to achieve basic functions, logic circuits can also be used.

[0055] When the control module is implemented by a PLC controller and related circuits, the control module may include the PLC controller, serial port assembly, and CAN bus interface. The PLC controller connects to the ACDC module, the fuel-power module, the BOP device, and the PCS module via the serial port assembly and CAN bus interface. The PLC controller can be used as the primary control element in the control system of a hydrogen-powered stationary power plant, enabling signal acquisition, signal processing, subsystem communication setup, and system logic control. It can also perform system status diagnosis, upload, and fault protection functions. PLC controller data can be sent as CAN messages and communicated using the CAN protocol. For example, the PLC controller can exchange data with the fuel-power module in real time by converting RS485 / RS422 communication to CAN communication.

[0056] When the control module is implemented by a logic circuit, one embodiment is as follows: it includes a first input terminal as a trigger terminal. When it receives a high level indicating the startup of the fixed power station (for example, a high level signal sent by the corresponding switch module when the switch is closed), based on the internal clock, it outputs a high level through each of its output pins in sequence. Each output pin is connected to two parallel paths, one connected to the first switch module of the corresponding power generation module, and the other connected to the second switch module of the corresponding power generation module after passing through an inverter. A high level indicates a closing instruction, and a low level indicates an opening instruction, thereby closing the first switch module of the power generation module and opening the second switch module. Each pin also has an input pin. After receiving a high level signal generated after the startup of the corresponding power generation module, it outputs a low level through the corresponding output pin, thereby opening the first switch module of the power generation module and closing the second switch module.

[0057] In this embodiment, by controlling the on and off of the switch module, the ACDC module supplies power to the BOP device before the fuel-fired power module is started, and the fuel-fired power module supplies power to the BOP device after the fuel-fired power module is started. Therefore, a single ACDC high-voltage DC power supply can be used to start multiple fuel-fired power modules in sequence, reducing the number and cost of ACDC modules, and thereby reducing the space occupied by the hydrogen fuel fixed power station itself.

[0058] In some embodiments, the control module is further configured to send a close command to the first switch module and an open command to the second switch module before the fuel-power module (fuel cell stack) is shut down, controlling the closing of the first switch module in the power generation module to enable the ACDC module to supply power to the BOP device in the power generation module. Furthermore, the control module is configured to send an open command to the first switch module after the fuel-power module is shut down. Specifically, in this embodiment, before the fuel-power module is shut down, the circuit that supplies power to the BOP device from the ACDC module is connected, while the circuit that supplies power to the BOP device from the fuel cell stack is disconnected. After the fuel-power module is shut down, the circuit that supplies power to the BOP device from the ACDC module is disconnected. The ACDC module maintains power to the BOP device before and after the fuel-power module is shut down, ensuring a smooth shutdown transition and extending the life of the equipment. The control module can be implemented by a PLC controller and related circuits, or by building a logic circuit to implement the above control logic. For example, when it is implemented by building a logic circuit, one implementation method is: it includes a second input terminal as a trigger terminal. When a low level is received indicating that the fixed power station is closed, based on the internal clock, a high level is output through each of its output pins in sequence. As mentioned above, since each output pin is connected to the above two parallel paths, the first switch module of the power generation module on this path is closed and the second switch module is disconnected. After the input pin corresponding to each pin receives the low level signal generated after the corresponding power generation module is closed, it outputs a low level through the corresponding output pin to disconnect the first switch module of the power generation module on this path. Since the corresponding power generation module has been closed, although it receives the closing level of the second switch module, it will not respond to the high level, thereby realizing that the first switch module and the second switch module of the power generation module on this path are both in the disconnected state.

[0059] In some embodiments, the control module is further configured to obtain status information of the fuel cell stack through a communication connection with the fuel cell controller, and to send control instructions to the first switch module and the second switch module based on the status information to supply power to the BOP device through the ACDC module or to supply power to the BOP device through the fuel cell stack.

[0060] For example, the fuel cell controller acquires real-time fuel cell stack status information. If the fuel cell stack is not activated, the fuel cell stack activation step is executed: the control module sends a close command to the first switch module, causing the ACDC module to supply power to the BOP device; and then sends a startup command to the BOP device. Due to the communication connection between the BOP device and the control module, the control module can also acquire the BOP device status in real time. After the BOP device is fully activated, the control module sends a command to the fuel cell controller of the combustion and power module to activate the fuel cell stack. When the control module determines that the fuel cell stack is activated, it sends a close command to the second switch module, allowing the DC power generated by the fuel cell stack to be supplied to the BOP device. Subsequently, the control module sends a disconnect command to the first switch module, ensuring that the fuel cell stack provides the entire power required for the BOP device to operate. Therefore, by monitoring the fuel cell stack through the fuel cell controller and acquiring status information, power is supplied to the BOP device through the ACDC module or the fuel cell stack in a timely manner based on the fuel cell stack status. This allows for timely switching of power supply to the BOP device, improves BOP power supply switching management, avoids energy waste, and further enhances the operational efficiency and maintenance management of the entire power station.

[0061] In some embodiments, as Figure 2 As shown, Figure 2 This is a schematic diagram of the structure of another hydrogen-fueled stationary power station provided in an embodiment of the present application. The control module is also in communication with the output unit of the PCS module. The control module is configured to obtain the output power of the output unit and, when the output power meets a preset power threshold, to operate another set of power generation modules. Specifically, the control module sends control instructions to the second fuel-power module, the third switch module, and the fourth switch module, respectively, to activate the second fuel-power module and output DC power. The output power can be obtained by obtaining the output voltage and output current of the output unit.

[0062] For example, a threshold can be pre-set. When the output power of an output unit meets this threshold, a power generation module (fuel cell stack) is activated to generate electricity. For example, if the rated output power of a fuel cell stack is 500 kW, and the preset threshold is 80% of the rated output power, or 400 kW, then another fuel cell stack (the second fuel cell module) needs to be activated. If the output power of the output unit obtained by the control module at this time is 450 kW, which meets the preset threshold, then another fuel cell stack is activated.

[0063] The process for activating the second fuel-power module is the same as that for activating the first fuel-power module. Specifically, activating the second fuel-power module includes sending a close command to the third switch module, sending a disconnect command to the fourth switch module, and supplying power to the second BOP device via the ACDC module. The control module then obtains status information from the second fuel cell stack via the second fuel cell controller. Once the second fuel cell is activated, it sends a close command to the fourth switch module and a disconnect command to the third switch module, enabling the second fuel cell stack to supply power to the second BOP device. Furthermore, the power generated by the second fuel cell stack, in addition to that supplied to the second BOP device, can be supplied to the load via the second PCS module.

[0064] In this embodiment, by monitoring the output power and starting the second fuel-power module when the preset threshold is reached, it can effectively respond to sudden increases in power demand, ensure the effective supply of changing loads, ensure the continuity and stability of power supply, and meet the application scenario requirements of rapid response to power changes.

[0065] In some embodiments, when a hydrogen fuel cell stationary power plant needs to be shut down, it can be shut down in reverse order of its startup sequence. This can avoid system instability caused by sudden power outages and reduce the impact on the entire hydrogen fuel cell stationary power plant and its load. By shutting down units one by one, the system can gradually reduce its load, facilitating a smooth shutdown and ensuring system stability.

[0066] For example, assuming the first and second fuel-electric modules (i.e., the fuel cell stacks of the first and second power generation modules) are powered on, when the hydrogen fuel station power plant is shut down, the control module sends a close command to the third switch module and an open command to the fourth switch module before shutting down the second fuel-electric module (fuel cell stack); and then, after shutting down the second fuel-electric module, sends an open command to the third switch module to complete the shutdown of the second fuel-electric module.

[0067] Then, when shutting down the first fuel-fired power module, the process is the same as the shutdown process of the second fuel-fired power module.

[0068] Before the fuel-electric module (fuel cell stack) shuts down, the control module sends a close command to the first switch module and an open command to the second switch module. Furthermore, after the fuel-electric module shuts down, the control module sends an open command to the first switch module. Specifically, before the fuel-electric module shuts down, the ACDC module connects the circuit that supplies power to the BOP components, while disconnecting the circuit that supplies power to the BOP components from the fuel cell stack. After the fuel-electric module shuts down, the ACDC module disconnects the circuit that supplies power to the BOP components. The ACDC module maintains power to the BOP components before and after the fuel-electric module shuts down, ensuring a smooth shutdown transition and extending the life of the equipment.

[0069] In some embodiments, the control module is also used to send instructions to each module and unit to perform self-test before the hydrogen fuel fixed power station is started. After the self-test passes, the control module can execute the next step of starting the hydrogen fuel fixed power station.

[0070] In some embodiments, as Figure 3 The control principle topology diagram of the hydrogen fuel stationary power station shown in the figure, the hydrogen fuel stationary power station also includes: a heat dissipation module and a fire protection module;

[0071] The heat dissipation module is equipped with a temperature sensor and a cooling unit. The temperature sensor is set at a preset position of the fuel cell stack and the BOP device to monitor temperature data; the cooling unit includes a water pump, a radiator and a circulation pipeline, which is used to adjust the water flow rate and fan speed according to the control instructions of the control module to maintain the fuel cell stack and the BOP device within a safe operating temperature range to ensure efficient and stable power generation.

[0072] The fire protection module includes a signal acquisition unit, a fire protection central control unit and a fire protection execution unit. The signal acquisition unit is used to collect monitoring data of the hydrogen fuel fixed power station and send the monitoring data to the fire protection central control unit, including monitoring safety parameters such as temperature and smoke concentration in key areas of the fuel power station. The fire protection central control unit determines whether to initiate fire emergency measures based on preset safety thresholds, including but not limited to sprinkler systems, gas fire extinguishing systems or exhaust systems, to ensure the safe operation of the fuel power station.

[0073] In this embodiment, by integrating the fire protection module and the heat dissipation module, the fuel power station not only achieves efficient energy conversion and output control, but also significantly enhances the safety and stability of the system, effectively prevents fire risks and ensures equipment reliability under long-term operation.

[0074] It should be noted that the connection in this application may refer to a strong electrical connection with a large voltage and current, while the communication connection may refer to a weak electrical connection, such as a network cable, sensor signal, etc. At the same time, the communication connection in this application may be connected by wired / wireless means.

[0075] In addition, based on the aforementioned communication connections, the hydrogen fuel station can also include a data communication line (DCL) unit, which is used to transmit data and communication signals. It can refer to a communication line or communication channel for transmitting data and signals. The DCL unit can be various types of communication lines, such as optical fiber, twisted pair, coaxial cable, etc. The DCL unit can realize data transmission, communication, remote control, monitoring and other functions between the control module and modules and units such as the fuel-electric module, the first switch module and the second switch module.

[0076] The following is a further introduction to the embodiment of the hydrogen fuel stationary power station provided by this application in conjunction with a specific embodiment. Figure 4 As shown, Figure 4 It is a structural diagram of the power generation part of the hydrogen fuel fixed power station 100 provided in an embodiment of the present application.

[0077] The hydrogen fuel fixed power station 100 includes a control module, an ACDC module, a fuel-fired power module (this embodiment is introduced using four groups of power generation modules as an example, each group of power generation modules has one fuel-fired power module, respectively referred to as ID1, ID2, ID3, and ID4), a PCS (corresponding to four PCS modules, respectively referred to as PCS_1, PCS_2, PCS_3, and PCS_4) module, etc.

[0078] The control module can be a PLC controller, which can establish communication connections with the ACDC module, four fuel-power modules, and the like via a pre-set Data Communication Line (DCL). The DCL can include a serial port component, a CAN bus component, an RS485 / RS422 bus component, and the like. Control instructions from the PLC controller can be sent to the fuel-power module, ACDC module, and the like via the CAN communication component in the form of CAN messages.

[0079] The switch modules (first switch module, second switch module...) can be relays. Figure 2 As shown in the figure, the first group of power generation modules includes a first switch module, namely relay K14, and a second switch module, namely relay K13; the second group of power generation modules includes a third switch module, namely relay K24, and a fourth switch module, namely relay K23; the third group of power generation modules includes a fifth switch module, namely relay K34, and a sixth switch module, namely relay K33; the fourth group of power generation modules includes a seventh switch module, namely relay K44, and an eighth switch module, namely relay K43.

[0080] Before starting the hydrogen fuel fixed power station, it can also perform self-test. After the self-test is completed, the control module sends a start command to the ACDC module to start the ACDC module to output DC high voltage power. Subsequently, before ID1 starts, the BOP power supply corresponding to ID1 is provided by ACDC, that is, closed Figure 4After ID1 is started, the BOP corresponding to ID1 is powered by the energy generated by the ID1 combustion module (closing the K13 relay), which then disconnects the ACDC power supply circuit (disconnecting the K14 relay). Consequently, the BOP corresponding to ID1 is powered by ID1's own power. After ID1 generates high-voltage DC power, it outputs it to the input side of the first PCS module (PCS_1). After the PCS_1 input detects the presence of high-voltage DC power and receives a startup signal from the PLC controller, the PCS_1 output side delivers power, such as AC380V. The output side of the PCS module can be a transformer, which boosts the AC380V voltage to the target voltage, such as AC400V. Electrically powered devices are then connected to the transformer's output side to draw power.

[0081] At this point, the control module can obtain the transformer's output power (load power) in real time. If the load power continues to increase to a preset power level, the fuel cell stack needs to be turned on again to generate electricity. For example, if the rated output power of a fuel cell stack is 500 kW, the preset threshold is 80% of the rated output power, or 400 kW, at which point another power generation module needs to be turned on.

[0082] Then, the control module sends a command to start ID2. Before starting ID2, close Figure 4 The K24 relay in the middle makes the ACDC module supply power to the BOP device corresponding to ID2. Then start ID2 and close it after ID2 starts. Figure 2 K23 relay, and then cut off Figure 4 The K24 relay in the middle and the BOP power supply corresponding to ID2 are provided by the self-generated power of ID2. Finally, the power is output by the output side of PCS_2.

[0083] The startup logic principle of ID3, ID4, ... IDn is the same as that of ID1 and ID2, and then the power is output from the output side of PCS_3, PCS_4, PCS_n respectively.

[0084] When shutdown is required, the shutdown can be carried out in reverse order according to the startup sequence of the fuel-electric modules. That is, when the power requested by ID4 drops to the low power stage, the DC high-voltage power provided by the ACDC module is connected to the BOP device input terminal corresponding to ID4 (i.e. closed). Figure 4 After the ACDC module is connected to the input side of the BOP device, the circuit of the BOP device supplied by the ID4 self-generated power is cut off (i.e., the circuit is disconnected). Figure 4 At this time, the BOP device power supply of ID4 fuel-electric module is supplied by ACDC module. After ID4 is shut down and purged, ID4 is in a completely shut down state. The PLC controller sends a signal to disconnect the relay of ACDC module supplying the BOP device corresponding to ID4 (i.e. disconnect the relay). Figure 4At this time, the ID4 fuel-electric module has completed shutdown.

[0085] The shutdown logic principle of the ID3, ID2, and ID1 fuel-electric modules is the same as that of the ID4 fuel-electric module.

[0086] After all fuel-fired power modules are shut down, the PLC controller issues shutdown instructions to the ACDC module, DCL, etc., and then the shutdown of the hydrogen fuel fixed power station is completed.

[0087] This embodiment utilizes serial port and CAN communication technologies. A PLC controller sequentially controls the output of a single ACDC module to power N fuel-power modules for BOP startup. This reduces the number of ACDC modules and lowers costs. Furthermore, the ACDC module maintains power to the BOP components before and after the fuel-power modules shut down, ensuring safe shutdown and extending equipment life.

[0088] Based on an inventive concept, for the above-mentioned hydrogen fuel fixed power station, the present application also provides a control method for the hydrogen fuel fixed power station, such as Figure 5 As shown, Figure 5 : This is a flow chart of a control method for a hydrogen fuel stationary power station provided in an embodiment of the present application. The control method for a hydrogen fuel stationary power station includes:

[0089] The control module is used to control each power generation module to start up in sequence; wherein, the starting process for each power generation module includes: before the fuel-fired power module of the power generation module is started, the control module is used to control the first switch module of the power generation module to be closed and the second switch module to be disconnected, so that the ACDC module supplies power to the BOP device of the power generation module; and after the fuel-fired power module of the power generation module is started, the control module is used to control the second switch module of the power generation module to be closed and the first switch module to be disconnected, so that the fuel-fired power module of the power generation module supplies power to the BOP device of the power generation module.

[0090] Specifically, the control method includes the following steps:

[0091] S501: Power the BOP device through the ACDC module.

[0092] S502: Start the BOP device, and start the fuel-electricity module after the BOP device is started.

[0093] S503: disconnect the circuit for the ACDC module to supply power to the BOP device, and supply power to the BOP device and the load through the fuel-electric module.

[0094] In some implementations, after step 503, the method further includes:

[0095] S504: Obtaining output power supplied to the load;

[0096] S505: If the output power meets the preset power threshold, start the second power generation module and output DC power;

[0097] Among them, starting the second power generation module includes:

[0098] Power is supplied to the BOP device of the second power generation module through the ACDC module;

[0099] Start the BOP device, and after the BOP device is started, start the fuel-fired power module of the second power generation module;

[0100] The circuit for the ACDC module to supply power to the BOP device of the second power generation module is disconnected, and power is supplied to the BOP device and the load through the fuel-fired power module of the second power generation module.

[0101] In some embodiments, shutdown control of hydrogen fuel stationary power plants is also included, such as Figure 6 As shown, it is a flow chart of shutdown control for a hydrogen fuel fixed power station, wherein the order of controlling each power generation module to shut down in sequence is opposite to the order of controlling each power generation module to start up in sequence.

[0102] Specifically, the following steps are included:

[0103] S601: Power is supplied to the BOP device of the second power generation module through the ACDC module, and the circuit for the fuel-electricity module of the second power generation module to supply power to the BOP device is disconnected.

[0104] S602: shut down the fuel-electric module of the second power generation module, and after the fuel-electric module is shut down, disconnect the circuit through which the ACDC module supplies power to the BOP device.

[0105] S603: Power is supplied to the BOP device of the first power generation module through the ACDC module, and the circuit for the fuel-electricity module to supply power to the BOP device is disconnected.

[0106] S604: shut down the fuel-electric module of the first power generation module, and after the fuel-electric module is shut down, disconnect the circuit through which the ACDC module supplies power to the BOP device.

[0107] In this embodiment, according to the principle of sequential startup and sequential shutdown, multiple fuel-fired power modules are started or shut down in sequence by one ACDC module, thereby reducing the number and cost of ACDC modules. The ACDC module maintains the power supply of the BOP device before and after the fuel-fired power module is shut down, ensuring safe shutdown and extending the life of the equipment.

[0108] Figure 7This is a schematic structural diagram of a computing device 900 provided in an embodiment of the present application. The computing device can be used as a control module or corresponding device to execute the various optional embodiments of the above-mentioned control method of the hydrogen fuel stationary power station. The computing device can be a terminal or a chip or chip system inside the terminal. Figure 7 As shown, the computing device 900 includes: a processor 910 , a memory 920 , and a communication interface 930 .

[0109] It should be understood that Figure 7 The communication interface 930 in the computing device 900 shown may be used to communicate with other devices, and may specifically include one or more transceiver circuits or interface circuits.

[0110] The processor 910 may be connected to a memory 920. The memory 920 may be used to store the program code and data. Therefore, the memory 920 may be a storage unit within the processor 910, an external storage unit independent of the processor 910, or a component including both a storage unit within the processor 910 and an external storage unit independent of the processor 910.

[0111] Optionally, the computing device 900 may further include a bus. The memory 920 and the communication interface 930 may be connected to the processor 910 via a bus. The bus may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 A line without an arrow is used to represent the bus, but this does not mean that there is only one bus or one type of bus.

[0112] It should be understood that in the embodiment of the present application, the processor 910 can adopt a central processing unit (CPU). The processor can also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor, etc. Alternatively, the processor 910 adopts one or more integrated circuits to execute relevant programs to implement the technical solutions provided in the embodiments of the present application.

[0113] The memory 920 may include a read-only memory and a random access memory, and provides instructions and data to the processor 910. A portion of the processor 910 may also include a non-volatile random access memory. For example, the processor 910 may also store information about the device type.

[0114] When the computing device 900 is running, the processor 910 executes the computer-executable instructions in the memory 920 to perform any operation step of the above method and any optional embodiment thereof.

[0115] It should be understood that the computing device 900 according to the embodiment of the present application can correspond to the corresponding subject in executing the method according to each embodiment of the present application, and the above-mentioned and other operations and / or functions of each module in the computing device 900 are respectively for implementing the corresponding processes of each method of the present embodiment. For the sake of brevity, they will not be repeated here.

[0116] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0117] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0118] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0119] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0120] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0121] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0122] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, the program is used to execute the above method, which includes at least one of the solutions described in the above embodiments.

[0123] The computer storage medium of the embodiment of the present application can adopt any combination of one or more computer-readable media.Computer-readable media can be computer-readable signal media or computer-readable storage media.Computer-readable storage media can be, for example, but not limited to, electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, devices or components, or any combination thereof.More specific examples (non-exhaustive list) of computer-readable storage media include: a connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof.In this document, computer-readable storage media can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0124] A computer-readable signal medium may include a data signal propagated in baseband or as part of a carrier wave, which carries computer-readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A computer-readable signal medium may also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0125] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0126] The computer program code for performing the operation of the present application can be written in one or more programming languages ​​or a combination thereof, and the programming language includes an object-oriented programming language - such as Java, Smalltalk, C++, and also includes a conventional procedural programming language - such as "C" language or similar programming language. The program code can be executed entirely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer and partially on a remote computer, or completely on a remote computer or server. In the case of a remote computer, the remote computer can be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computer (for example, using an Internet service provider to connect through the Internet). In addition, the words "first, second, third, etc." or module A, module B, module C and the like in the specification and claims are only used to distinguish similar objects and do not represent a specific order for the objects. It is understandable that the specific order or sequence can be interchanged where permitted so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0127] In the above description, the numbers representing the steps, such as S110, S120, etc., do not necessarily mean that the steps must be executed in this manner. If permitted, the order of the steps can be interchanged or they can be executed simultaneously.

[0128] The term "comprising" as used in the specification and claims should not be construed as limiting to what is listed thereafter; it does not exclude other elements or steps. Thus, it should be interpreted as specifying the presence of the features, integers, steps, or components mentioned, but not excluding the presence or addition of one or more other features, integers, steps, or components, or groups thereof. Thus, the expression "a device comprising means A and B" should not be limited to a device consisting solely of components A and B.

[0129] References in this specification to "one embodiment" or "an embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Therefore, the phrases "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics can be combined in any suitable manner, as would be apparent to one of ordinary skill in the art from this disclosure.

[0130] Note that the above are only preferred embodiments of the present application and the technical principles employed. Those skilled in the art will understand that the present application is not limited to the specific embodiments described herein, and that various obvious changes, readjustments, and substitutions can be made by those skilled in the art without departing from the scope of protection of the present application. Therefore, although the present application has been described in more detail through the above embodiments, the present application is not limited to the above embodiments and may include many other equivalent embodiments without departing from the scope of protection of the present application, all of which fall within the scope of protection of the present application.

Claims

1. A hydrogen fuel stationary power station, characterized in that: include: A control module, an ACDC module for converting AC power into DC power, and a multi-channel power generation module connected to the ACDC module; Each power generation module includes: a fuel-electricity module for converting hydrogen fuel into direct current, a PCS module for converting direct current into alternating current and outputting it to a load, a first switch module, a second switch module, and a BOP device; For each power generation module, the input of the BOP device of the power generation module is connected to the output of the ACDC module through the first switch module of the power generation module, the input of the BOP device of the power generation module is also connected to the output of the fuel-fired power module of the power generation module through the second switch module of the power generation module, and the input of the PCS module of the power generation module is connected to the output of the fuel-fired power module of the power generation module; The control module is respectively connected to the first switch module and the second switch module of each power generation module for controlling each power generation module to start in sequence; Among them, during the startup process of each power generation module, before the fuel-fired power module of the power generation module is started, the control module controls the first switch module of the power generation module to be closed and the second switch module to be disconnected; and after the fuel-fired power module of the power generation module is started, the control module controls the second switch module of the power generation module to be closed and the first switch module to be disconnected.

2. The hydrogen fuel stationary power station according to claim 1, characterized in that: The control module is also used to control each power generation module to shut down in sequence: Among them, during the shutdown process of each power generation module, the first switch module of the power generation module is controlled to be closed and the second switch module is controlled to be disconnected before the fuel-fired power module of the power generation module is shut down; and the first switch module of the power generation module is controlled to be disconnected after the fuel-fired power module of the power generation module is shut down.

3. The hydrogen fuel stationary power station according to claim 2, characterized in that: The fuel-electric module includes a fuel cell stack and a fuel cell controller; The fuel cell stack is used to convert fuel into direct current and output it; The fuel cell controller is in communication with the control module and is configured to operate the fuel cell stack under the control of the control module.

4. The hydrogen fuel stationary power station according to claim 3, characterized in that: The control module is also in communication with the ACDC module, and is used to control the ACDC module to start before all power generation modules are started, and to control the ACDC module to shut down after all power generation modules are shut down.

5. The hydrogen fuel stationary power station according to claim 4, characterized in that: The control module is also connected to the PCS module and is used to control the PCS module to start when the fuel-electricity module outputs direct current.

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