Hydrogen fuel fixed power station and control method and computing equipment thereof

Abstract

The invention 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 and a control method and computing equipment thereof. Background Art

[0002] With the continuous growth of global energy demand and the urgent need for environmental protection, it has become a top priority to find a clean and efficient alternative energy source. Among the many alternative energy sources, hydrogen energy stands out with its unique advantages and is regarded as the key to future energy transformation. With the rapid expansion of stationary hydrogen fuel cells, the development of fuel cells for stationary power market has been further promoted.

[0003] At present, the general fixed hydrogen fuel high-power power station is assembled by multiple fuel-electric modules for integrated power generation. Each fuel-electric module needs to provide an ACDC module to provide high-voltage DC power to the BOP device. Therefore, the current fixed hydrogen fuel high-power power station usually has multiple ACDC modules corresponding to multiple fuel-electric modules, which leads to a sharp increase in the cost of the fixed power station. On the other hand, multiple ACDC modules also make the fixed power station equipment structure bulky and difficult to transport.

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

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

[0006] To achieve the above-mentioned object, the first aspect of the present application provides a hydrogen fuel fixed power station, comprising: 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; wherein each of the power generation modules comprises: a combustion 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-electric 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-electric 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, one 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 size of hydrogen fuel fixed power stations.

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

[0012] In this embodiment, the ACDC module maintains the power supply of the BOP device before and after the fuel-electric module is shut down, thereby 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 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.

[0016] In this embodiment, the ACDC module is switched on and off by turning it on before the power generation module is started and turning it off after the power generation module is shut down, thereby effectively saving energy.

[0017] As a possible implementation manner 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 plant, which is applied to the above-mentioned hydrogen fuel stationary power plant. The control method includes:

[0019] The control module is used to control 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 first switch module of the power generation module is controlled by the control module to be closed and the second switch module is 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 second switch module of the power generation module is controlled by the control module to be closed and the first switch module is 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 implementation, the ACDC module first supplies power to the BOP device, and then switches to the fuel-electric module for power supply, thereby ensuring a smooth startup of the system; a single ACDC high-voltage DC power supply can be used to start multiple fuel-electric modules in sequence, thereby reducing the number of ACDC modules and costs.

[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] Among them, the shutdown process for each power generation module includes: 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 by the control module to be closed and the second switch module is 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 first switch module of the power generation module is controlled by the control module to be disconnected 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 controlled to be shut down in sequence is opposite to the order in which each power generation module is controlled to be started in sequence. In this embodiment, the shutdown control is performed in the opposite order to the order in which each power generation module is controlled to be started in sequence, so that system instability caused by sudden power failure can be avoided, and the impact on the entire hydrogen fuel fixed power station and load can be reduced. Shutting down one by one can gradually reduce the load of the system, which is conducive to smooth shutdown and ensures the stability of the system.

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

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

[0027] If it is satisfied, the startup of the next power generation module is stopped, 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 cope with the sudden increase 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 become apparent from 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 relationship between the various features with reference to the accompanying drawings. The accompanying drawings are all exemplary, some features are not shown in actual proportion, and some drawings may omit the conventional features in the field involved in the present application and are not necessary for the present application, or additionally show the features that are not necessary for the present application. The combination of the various features shown in the accompanying drawings is not intended to limit the present application. In addition, throughout this specification, the same figure numerals refer to the same content. The specific description of the drawings is as follows:

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

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

[0037] Figure 4 It is a schematic diagram of the structure of the strong power part of a hydrogen fuel fixed power station provided in an embodiment of the present application;

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

[0039] Figure 6 It is a schematic diagram of a shutdown control process for a hydrogen fuel fixed power station provided in 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 the present 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 the present application are mainly to illustrate the possible implementation methods of the technical solution of the present application and should not be interpreted as the only limitation on the technical solution of the present application. It is known to those of ordinary skill in the art that with the evolution of the system structure and the emergence of new business scenarios, the technical solution provided by the present 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, since the principles of these technical solutions to solve the problems are the same or similar, some repetitions may not be repeated in the introduction of the following specific embodiments, but it should be regarded as that these specific embodiments have 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 technicians in the technical field of this application. In the event of any inconsistency, the meaning described in this specification or the meaning 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 the present application and are not intended to limit the present 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 to the terms used in this specification before describing the specific embodiments:

[0044] 1) Programmable Logic Controller (PLC): It uses programmable memory to store instructions for executing logic operations, sequential control, timing, counting and arithmetic operations, and controls various types of mechanical equipment 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 energy stationary power plant.

[0045] 2) Alternating Current to Direct Current (ACDC): used to convert AC power into DC power for normal operation of electronic equipment.

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

[0047] 4) Fuel Cell Unit (FCU): In this application, FCU refers to a control unit related to the fuel cell system, i.e., a fuel cell controller, which is 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 device (Balance of Plant): In this application, it refers to the general term for all auxiliary systems and components except the core power generation unit (i.e., the hydrogen fuel cell stack), which are used to ensure the normal operation of the hydrogen fuel cell stack.

[0049] Figure 1 1 is a schematic diagram of the structure of a hydrogen fuel stationary power plant 100 provided in an embodiment of the present application. Figure 1 As shown, the hydrogen fuel fixed 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 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 through the first switch module of the power generation module, and is connected to the input of the BOP device through the first switch module. The input of the BOP device of the power generation module is also connected to the output of the fuel power module of the power generation module through the second switch module of the power generation module, so as to output direct current. Among them, the ACDC module can be an AC to DC unit, which can convert the external input AC power into DC power for the operation of components such as BOP devices. For example, the externally supplied AC380V power supply is converted into DC600V power supply, which is then supplied to the BOP device for operation. Among them, the first switch module and the second switch module can be relays.

[0051] The fuel-electric module is connected to the BOP device through the second switch module, and is used to convert the fuel into direct current and output it; the input of the PCS module of the power generation module is connected to the output of the fuel-electric module of the power generation module, and is used to convert the direct current of the fuel-electric module into alternating current and output it; the fuel-electric module includes a fuel cell stack and a fuel cell controller (FCU); the fuel cell stack is used to convert the fuel into direct current and output it; the fuel cell controller, as the core control component in the fuel cell power generation system, is responsible for managing the operation of the fuel cell stack, and is connected to the control module for communication, and is used to control the operation of the fuel cell stack according to the control instructions of 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), and its main function is to provide the necessary fuel and oxygen for the fuel cell system, as well as to cool the fuel cell and treat the exhaust products. The BOP device includes a fuel processing system, a hydrogen storage and supply system (such as a hydrogen main valve, etc.), an air supply system, a cooling system, a water and thermal management system, such as an air compressor, a water pump, etc. In addition, the BOP device can also be connected to the control module for communication, and the control module can control the start or shut down. 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-electric module and is used to convert the DC power of the fuel-electric 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-electric 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-electric module, and the DC power generated by the fuel cell stack can be delivered to the output unit. The output unit can be a transformer, which can convert the DC power of the fuel cell stack delivered 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, and then output to the load.

[0053] The control module is respectively communicated with the fuel-electric module, the first switch module and the second switch module of each power generation module, and is used to control each power generation module to start in sequence; wherein, during the startup process of each power generation module, before the fuel-electric 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-electric 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 a logic circuit to implement related control logic. It is not difficult to understand that when implemented by a PLC controller, more abundant control functions can be given, and some functions described later in this application rely on the implementation of a PLC controller. When implemented by a logic circuit, the implemented functions are relatively simple, and when the goal is to achieve basic functions, a logic circuit can also be used to build.

[0055] When the control module is implemented by a PLC controller and related circuits, the control module may include a PLC controller, a serial port component and a CAN bus interface; the PLC controller is connected to the ACDC module, the fuel-electric module, the BOP device and the PCS module through the serial port component and the CAN bus interface. The PLC controller can be used as the main control element and used as the control system of a hydrogen energy fixed power station. It can realize signal acquisition, signal processing, subsystem communication construction and system logic control, and can also perform system status diagnosis, upload and fault protection functions. The PLC controller data can be sent in the form of CAN messages and communicated through the CAN protocol. For example, the PLC controller can perform real-time data interaction with the fuel-electric module through RS485 / RS422 communication to CAN communication.

[0056] When the control module is implemented by a logic circuit, one implementation method is: it includes a first input terminal as a trigger terminal, and when a high level indicating the start of the fixed power station is received (for example, a high level signal sent by the corresponding switch module when the switch is closed), based on the internal clock, a high level is output through each of its output pins in sequence, and 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. The high level indicates a closing instruction, and the low level indicates a disconnecting instruction, so that the first switch module of the power generation module is closed and the second switch module is disconnected. Each corresponding pin also has an input pin, and after receiving a high level signal generated after the start of the corresponding power generation module, a low level is output through the corresponding output pin, so that the first switch module of the power generation module is disconnected and the second switch module is closed.

[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, one 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 also used to send a closing instruction to the first switch module and a disconnecting instruction to the second switch module before the fuel-electric module (fuel cell stack) is shut down, and control the first switch module of the power generation module to close so that the ACDC module supplies power to the BOP device of the power generation module; and send a disconnecting instruction to the first switch module after the fuel-electric module is shut down. That is, in this embodiment, before the fuel-electric module is shut down, the circuit for the ACDC module to supply power to the BOP device is connected, and the circuit for the fuel cell stack to supply power to the BOP device is cut off; after the fuel-electric module is shut down, the circuit for the ACDC module to supply power to the BOP device is cut off. The ACDC module maintains the 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. Among them, 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 end as a trigger end. When a low level indicating that the fixed power station is closed is received, based on the internal clock, a high level is output through each of its output pins in sequence. As above, since each output pin is connected to the above two roads in parallel, the first switch module of the power generation module is closed and the second switch module is disconnected. After receiving the low level signal generated after the corresponding power generation module is closed, the input pin corresponding to each pin outputs a low level through the corresponding output pin to disconnect the first switch module of the power generation module. Since the corresponding power generation module has been closed, although the second switch module is closed, 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 are both in the disconnected state.

[0059] In some embodiments, the control module is also used to obtain status information of the fuel cell stack through a communication connection with the fuel cell controller, and send control instructions to the first switch module and the second switch module according to 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 status information of the fuel cell stack is obtained in real time through the fuel cell controller. If the status of the fuel cell stack is not started at this time, the step of starting the fuel cell stack is executed: the control module sends a closing instruction to the first switch module, so that the ACDC module supplies power to the BOP device; and sends a start instruction to the BOP device. Based on the communication connection between the BOP device and the control module, the control module can also obtain the status of the BOP device in real time. After the BOP device is fully started, the control module sends an instruction to the fuel cell controller of the fuel-electric module to start the fuel cell stack. When the control module determines that the fuel cell stack is started, it sends a closing instruction to the second switch module so that the direct current generated by the fuel cell stack can be supplied to the BOP device; then, the control module sends a disconnection instruction to the first switch module so that the power required for the operation of the BOP device is completely provided by the fuel cell stack. Therefore, the fuel cell stack is monitored by the fuel cell controller, and the state information is obtained and the BOP device is supplied with power through the ACDC module or the fuel cell stack in time according to the state of the fuel cell stack, so that the power supply of the BOP device can be switched in time, which can improve the switching management level of the BOP power supply, avoid energy waste, and further improve the operation efficiency and maintenance management level of the entire power station.

[0061] In some embodiments, Figure 2 As shown, Figure 2 This is a structural diagram of another hydrogen fuel fixed power station provided by the embodiment of the present application. The control module is also connected to the output unit of the PCS module in communication; the control module is used to obtain the output power of the output unit, and when the output power meets the preset power threshold, to operate another group of power generation modules; that is, to send control instructions to the second fuel-electric module, the third switch module and the fourth switch module respectively, so that the second fuel-electric module operates and outputs direct current. Among them, the output power can be obtained by obtaining the output voltage and output current of the output unit.

[0062] For example, a threshold value can be pre-set, and when the output power of the output unit meets the threshold value, another power generation module (fuel cell stack) is turned on to generate electricity. Assuming that the rated output power of a fuel cell stack is 500KW, the preset threshold is 80% of the rated output power, that is, when it reaches 400KW, it is necessary to turn on another fuel cell stack (second fuel-electric module). If the output power of the output unit obtained by the control module at this time is 450KW, which meets the preset threshold value, then another fuel cell stack is turned on.

[0063] Among them, the process of starting the second fuel-electric module is the same as that of starting the first fuel-electric module. Specifically, starting the second fuel-electric module includes: sending a closing instruction to the third switch module, sending a disconnecting instruction to the fourth switch module, and supplying power to the second BOP device through the ACDC module. Then the control module obtains the status information of the second fuel cell stack through the second fuel cell controller. When it is determined that the second fuel is started, a closing instruction is sent to the fourth switch module, and a disconnecting instruction is sent to the third switch module, so that the second fuel cell stack supplies power to the second BOP device. At the same time, the second fuel cell stack can supply power to the load through the second PCS module in addition to the power supplied to the second BOP device.

[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 cope with the sudden increase 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 stationary power plant needs to shut down, the shutdown control can be performed in the reverse order of the startup sequence, which can avoid system instability caused by sudden power outages and reduce the impact on the entire hydrogen fuel stationary power plant and load. Shutting down one by one can gradually reduce the system load, which is conducive to smooth shutdown and ensures system stability.

[0066] For example, assuming that the first fuel-electric module and the second fuel-electric module (i.e., the fuel cell stacks of the first power generation module and the second power generation module) are turned on, when the hydrogen fuel fixed power station is shut down, the control module first sends a closing instruction to the third switch module and a disconnecting instruction to the fourth switch module before the second fuel-electric module (fuel cell stack) is shut down; and, after the second fuel-electric module is shut down, the control module sends a disconnecting instruction to the third switch module to complete the shutdown of the second fuel-electric module.

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

[0068] The control module sends a closing instruction to the first switch module and an opening instruction to the second switch module before the fuel-electric module (fuel cell stack) is shut down; and sends an opening instruction to the first switch module after the fuel-electric module is shut down. That is, in this embodiment, before the fuel-electric module is shut down, the circuit for the ACDC module to supply power to the BOP device is connected, and the circuit for the fuel cell stack to supply power to the BOP device is cut off; after the fuel-electric module is shut down, the circuit for the ACDC module to supply power to the BOP device is cut off. The ACDC module maintains the 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.

[0069] In some embodiments, the control module is also used to send instructions to each module and unit for 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, Figure 3 The topological diagram of the control principle of the hydrogen fuel stationary power station shown, 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 the 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 the temperature, smoke concentration and other safety parameters in key areas of the fuel power station. The fire protection central control unit determines whether to initiate fire emergency measures based on the preset safety threshold, including but not limited to the sprinkler system, gas fire extinguishing system or exhaust system, to ensure the safe operation of the fuel power station.

[0073] In this implementation mode, by integrating the fire protection module and the heat dissipation module, the fuel power station not only realizes efficient energy conversion and output control, but also significantly enhances the safety and stability of the system, effectively prevents fire risks and ensures the reliability of equipment 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 be a weak electrical connection, such as a network cable, a 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 above communication connection, the hydrogen fuel fixed power station can also include a data communication line unit (Data Communication Line, DCL), which is used to transmit data and communication signals. The carrier 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. Through the DCL unit, the control module and the fuel-electric module, the first switch module and the second switch module and other modules and units can realize data transmission, communication, remote control, monitoring and other functions.

[0076] The following is a further introduction to the embodiment of the hydrogen fuel stationary power plant provided by the present application in conjunction with a specific implementation. Figure 4 As shown, Figure 4 It is a schematic 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-electric module (this embodiment is introduced by taking 4 groups of power generation modules as an example, each group of power generation modules has 1 fuel-electric module, respectively referred to as ID1, ID2, ID3, ID4), a PCS (corresponding to 4 PCS modules, respectively recorded as PCS_1, PCS_2, PCS_3, PCS_4) module, etc.

[0078] Among them, the control module can be a PLC controller, and the PLC controller can establish communication connections with the ACDC module, four fuel-electric modules, etc. through a preset data communication line unit (Data Communication Line, DCL), and the DCL can include a serial port component, a CAN bus component, an RS485 / RS422 bus component, etc. The control instructions of the PLC controller can be sent to the fuel-electric module, the ACDC module, etc. through the CAN communication component in the form of a CAN message.

[0079] The switch modules (first switch module, second switch module, etc.) 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, a self-test can also be performed. 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 is started, the BOP power supply corresponding to ID1 is provided by ACDC, that is, closed Figure 4K14 relay in; after ID1 is started, the BOP corresponding to ID1 is powered by the power generated by the ID1 fuel-electric module (close K13 relay), and then the circuit provided by ACDC is cut off (disconnect K14 relay). Therefore, the BOP corresponding to ID1 is powered by the self-generation of ID1. After ID1 generates high-voltage DC power, it is output to the input side of the first PCS module (PCS_1); after the PCS_1 input side detects the presence of high-voltage DC power and receives the start signal of the PLC controller, the PCS_1 output side outputs power, such as AC380V power. Among them, the output side of the PCS module can be a transformer, which can increase the AC380V voltage to the target voltage, such as AC400V voltage; then the electrical equipment is connected to the output side of the transformer to draw power for use.

[0081] At this time, the control module can obtain the output power (load power) of the transformer in real time. If the load power continues to increase to the preset power, the fuel cell stack needs to be turned on to generate electricity. Assuming that the rated output power of a fuel cell stack is 500KW, the preset threshold is 80% of the rated output power, that is, when it reaches 400KW, another set of power generation modules needs to be turned on.

[0082] Then, the control module sends a command to start ID2. Before ID2 starts, 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 after ID2 starts, close the Figure 2 The K23 relay is then cut off Figure 4 The K24 relay in the middle, the BOP power supply corresponding to ID2 is provided by the self-generation of ID2. Finally, the power supply 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 by 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 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 ID3, ID2, and ID1 fuel-electric modules is the same as that of 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] The embodiment of the present application adopts serial port and CAN communication technology as the basis, and the PLC controller controls the output of a single ACDC module to sequentially power N fuel-electric modules to start the BOP, thereby reducing the number of ACDC modules and reducing costs. At the same time, the ACDC module maintains the power supply of the BOP device before and after the fuel-electric module is shut down, ensuring safe shutdown and extending the life of the equipment.

[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 : is a flow chart of a control method for a hydrogen fuel stationary power plant provided in an embodiment of the present application. The control method for a hydrogen fuel stationary power plant includes:

[0089] Each power generation module is controlled to start in sequence through the control module; wherein, the starting process of each power generation module includes: before the fuel-fired power module of the power generation module is started, the first switch module of the power generation module is controlled to be closed and the second switch module is disconnected through the control module, 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 second switch module of the power generation module is controlled to be closed and the first switch module is disconnected through the control module, 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 comprises the following steps:

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

[0092] S502: Start the BOP device, and start the fuel-electric 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 for supplying power to a load;

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

[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] Starting the BOP device, and starting the fuel-electricity module of the second power generation module after the BOP device is started;

[0100] The circuit for supplying power from the ACDC module 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-electric module of the second power generation module.

[0101] In some embodiments, it also includes shutdown control of hydrogen fuel stationary power plants, 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 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 through which the fuel-electricity module of the second power generation module supplies 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 of the ACDC module supplying 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 through which the fuel-electricity module supplies 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 of the ACDC module supplying power to the BOP device of the first power generation module.

[0107] In this embodiment, according to the principle of sequential start-up and sequential shutdown, multiple fuel-electric 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-electric module is shut down, ensuring safe shutdown and extending the life of the equipment.

[0108] Figure 7900 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 a corresponding device to execute the optional embodiments of the above-mentioned control method of a hydrogen fuel stationary power plant. 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 inside the processor 910, or an external storage unit independent of the processor 910, or a component including a storage unit inside 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 the 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 may adopt a central processing unit (CPU). The processor may 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 gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. Alternatively, the processor 910 may adopt one or more integrated circuits to execute relevant programs to implement the technical solutions provided in the embodiment 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 nonvolatile random access memory. For example, the processor 910 may also store information on 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 subjects in the methods according to the embodiments 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 of ordinary skill 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 to be beyond the scope of this application.

[0117] Those skilled in the art can 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 the present 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 only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, 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 separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[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 can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods 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 on which a computer program is stored. When the program is executed by a processor, it 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 devices, or any combination of the above. More specific examples (non-exhaustive lists) of computer-readable storage media include: connections with one or more wires, portable computer disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the above. 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] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0125] The program code embodied on the 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 completely on the user's computer, partially on the user's computer, as an independent software package, partially on the user's computer, partially on the remote computer, or completely on the 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 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 other similar terms in the specification and claims are only used to distinguish similar objects, and do not represent a specific order for the object. It can be understood that the specific order or sequence can be interchanged where permitted, so that the embodiment of the present application described here can be implemented in an order other than that illustrated or described here.

[0127] In the above description, the numbers representing the steps, such as S110, S120, etc., do not necessarily mean that the steps will 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 description and claims should not be interpreted as being limited to what is listed thereafter; it does not exclude other elements or steps. Therefore, it should be interpreted as specifying the presence of the features, integers, steps or components mentioned, but does not exclude the presence or addition of one or more other features, integers, steps or components and groups thereof. Therefore, the expression "a device comprising means A and B" should not be limited to a device consisting of components A and B only.

[0129] References to "one embodiment" or "an embodiment" in this specification mean that a particular feature, structure, or characteristic described in conjunction 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 in various places in this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. In addition, in one or more embodiments, the particular features, structures, or characteristics can be combined in any appropriate 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 used. 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 is described in more detail through the above embodiments, the present application is not limited to the above embodiments, and may also include more other equivalent embodiments without departing from the concept of the present application, all of which belong to 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 for output 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-electric 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-electric 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 plant 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 plant 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 communicatively connected with the control module and is used for operating the fuel cell stack under the control of the control module.

4. The hydrogen fuel stationary power plant according to claim 3, characterized in that: The control module is also connected to the ACDC module for controlling 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 plant 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.

6. A control method for a hydrogen fuel stationary power station, applied to the hydrogen fuel stationary power station according to any one of claims 1 to 4, characterized in that: The control method comprises: The control module is used to control each power generation module to start in sequence; 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 first switch module of the power generation module is controlled by the control module to be closed and the second switch module is 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 second switch module of the power generation module is controlled by the control module to be closed and the first switch module is disconnected, so that the fuel-fired power module of the power generation module supplies power to the BOP device of the power generation module.

7. The control method of a hydrogen fuel stationary power plant according to claim 6, characterized in that: Also includes: The control module is used to control each power generation module to shut down in sequence; Among them, the shutdown process for each power generation module includes: 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 by the control module to be closed and the second switch module is 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 first switch module of the power generation module is controlled by the control module to be disconnected to stop supplying power to the BOP device of the power generation module.

8. The control method of a hydrogen fuel stationary power plant according to claim 7, characterized in that: 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.

9. The control method of a hydrogen fuel stationary power plant according to claim 6, characterized in that: The control of starting each power generation module in sequence includes: Determine whether the output power of each power generation module currently started meets the output power required by the load; If it is satisfied, the startup of the next power generation module is stopped, otherwise the next power generation module is started.

10. A computing device, characterized in that include: processor, and A memory having program instructions stored thereon, wherein when the program instructions are executed by the processor, the processor executes the control method of a hydrogen fuel stationary power plant according to any one of claims 6 to 9.

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