Data acquisition architecture of fuel cell power generation system and control method thereof

Abstract

The application discloses a kind of data acquisition architecture of fuel cell power generation system and its control method.Therein, data acquisition structure includes: host computer, switch, power generation management unit, gas management unit and power generation unit;Power generation management unit, gas management unit and power generation unit are respectively connected with switch by Ethernet communication;Switch is connected with host computer by Ethernet communication;Gas management unit is used to output gas interaction signal to power generation management unit by switch;Power generation unit is used to output power generation interaction signal to power generation management unit by switch.The technical scheme of the application, same structure establishes the data acquisition architecture of fuel cell power generation system, establishes the centralized communication network of host computer-switch-each functional unit, replaces traditional transfer hardware, realizes several high-frequency data acquisition, simplifies field networking, improves debugging and operating efficiency.

Description

Technical Field

[0001] This invention relates to the field of fuel cell technology, and in particular to a data acquisition architecture and control method for a fuel cell power generation system. Background Technology

[0002] Solid oxide fuel cells (SOFCs) belong to the third generation of fuel cells. They are all-solid-state chemical power generation devices that efficiently and environmentally convert the chemical energy stored in fuel and oxidant into electrical energy directly at medium and high temperatures.

[0003] While current SOFC power generation systems have control systems that manage individual functional units within the solid oxide fuel cell, there is no control system capable of effectively coordinating and managing all functional units to ensure the stable, safe, and efficient operation of the SOFC power generation system. Summary of the Invention

[0004] This invention provides a data acquisition architecture and control method for a fuel cell power generation system, so as to achieve effective coordinated management of the various functional units of the SOFC power generation system.

[0005] According to one aspect of the present invention, a data acquisition architecture for a fuel cell power generation system is provided, including a host computer, a switch, a power generation management unit, a gas management unit, and a power generation unit; The power generation management unit, gas management unit, and power generation unit are each connected to the switch via Ethernet communication; the switch is connected to the host computer via Ethernet communication. The gas management unit is used to output gas interaction signals to the power generation management unit through the switch; the power generation unit is used to output power generation interaction signals to the power generation management unit through the switch; the power generation management unit is used to receive gas interaction signals and power generation interaction signals through the switch and control the working status of the gas management unit and the power generation unit according to the gas interaction signals and power generation interaction signals.

[0006] Optionally, the power generation management unit includes a power generation control unit, a cooling fan, a serial server, and an energy storage converter; The power generation control unit communicates with the switch via Ethernet; the power generation control unit communicates with the host computer and the cooling fan via hardwired connections; the serial port server communicates with the switch via Ethernet; the energy storage converter communicates with the serial port server. The gas management unit is used to output power generation fault information to the host computer via hardwire when the power generation control unit stops outputting power generation interaction signals to the switch; The cooling fan is used to operate at its rated maximum power when it stops receiving the cooling control signal from the power generation control unit. The serial port server is used to send heartbeat packets to the energy storage converter at preset intervals.

[0007] Optionally, the gas management unit includes a gas management control unit, an exhaust fan, and a gas valve; The gas management control unit is connected to the switch via Ethernet communication; the gas management control unit is connected to the host computer, the exhaust fan and the gas valve via hardwired communication to control the working status of the exhaust fan and the gas valve respectively. The power generation management unit is used to output gas fault information to the host computer via hardwire when the gas management control unit stops outputting power generation interaction signals to the switch; The exhaust fan is used to stop operating at its rated maximum speed when it receives a speed control signal from the gas management control unit. The gas valve is used to maintain the current opening state when it stops receiving valve control signals from the gas management control unit.

[0008] Optionally, the power generation unit includes a conversion unit and a fuel cell control unit; The fuel cell control unit and the conversion unit are connected via a two-wire differential multi-master arbitration serial bus; the conversion unit is used for converting between two-wire differential multi-master arbitration serial bus communication and Ethernet communication.

[0009] Optionally, the data acquisition architecture includes at least two power generation units; each power generation unit is communicatively connected to a switch.

[0010] According to another aspect of the present invention, a control method for a data acquisition architecture of a fuel cell power generation system is provided, applied in the data acquisition architecture; the control method includes: The power generation management unit receives gas interaction signals and power generation interaction signals through a switch; The power generation management unit controls the operating status of the gas management unit and the power generation unit based on the gas interaction signal and the power generation interaction signal.

[0011] Optionally, the gas management unit includes a gas management control unit, an exhaust fan, and a gas valve; Control methods also include: When the gas management control unit stops outputting power generation interaction signals to the switch, the power generation management unit outputs gas fault information to the host computer via hardwire; When the gas management control unit stops outputting speed control signals to the exhaust fan, the exhaust fan operates at its rated maximum speed; When the gas management control unit stops outputting valve control signals to the gas valve, the gas valve maintains its current opening state.

[0012] Optionally, the power generation management unit includes a power generation control unit, a cooling fan, a serial server, and an energy storage converter; Control methods also include: When the power generation control unit stops outputting power generation interaction signals to the switch, the gas management unit outputs power generation fault information to the host computer via hardwire; When the power generation control unit stops outputting heat dissipation control signals to the cooling fan, the cooling fan operates at its rated maximum power; The serial port server sends heartbeat packets to the energy storage converter at preset intervals.

[0013] Optionally, after the gas management unit outputs power generation fault information to the host computer via hardwired transmission when the power generation control unit stops outputting power generation interaction signals to the switch, it also includes: The gas management unit receives power generation interaction signals through the switch and controls the working status of the power generation unit according to the power generation interaction signals.

[0014] Optionally, after the gas management unit outputs power generation fault information to the host computer via hardwired transmission when the power generation control unit stops outputting power generation interaction signals to the switch, it also includes: The power generation unit receives gas interaction signals through a switch and controls the working status of the gas management unit based on the gas interaction signals.

[0015] The technical solution of this invention establishes a data acquisition architecture for a fuel cell power generation system, creating a centralized communication network between the host computer, the switch, and various functional units. This replaces traditional relay hardware, enables the acquisition of several high-frequency data, simplifies on-site networking, and improves debugging and operation efficiency.

[0016] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the data acquisition architecture connection of a fuel cell power generation system according to an embodiment of the present invention; Figure 2 This is a flowchart of a control method for a data acquisition architecture of a first fuel cell power generation system provided according to an embodiment of the present invention; Figure 3This is a flowchart of a control method for a data acquisition architecture of a second fuel cell power generation system provided by an embodiment of the present invention; Figure 4 This is a flowchart of the control method for the data acquisition architecture of the third fuel cell power generation system provided in the embodiments of the present invention; Figure 5 This is a flowchart of the control method for the data acquisition architecture of the fourth fuel cell power generation system provided in the embodiments of the present invention; Figure 6 This is a flowchart of the control method for the data acquisition architecture of the fifth fuel cell power generation system provided in the embodiments of the present invention. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0021] Figure 1 This is a schematic diagram of the data acquisition architecture connection of a fuel cell power generation system according to an embodiment of the present invention. Figure 1 As shown, the data acquisition architecture includes: host computer 1, switch 2, power generation management unit 3, gas management unit 4, and power generation unit 5; Power generation management unit 3, gas management unit 4 and power generation unit 5 are respectively connected to switch 2 via Ethernet communication; switch 2 is connected to host computer 1 via Ethernet communication. Gas management unit 4 is used to output gas interaction signals to power generation management unit 3 through switch 2; power generation unit 5 is used to output power generation interaction signals to power generation management unit 3 through switch 2; power generation management unit 3 is used to receive gas interaction signals and power generation interaction signals through switch 2 and control the working status of gas management unit 4 and power generation unit 5 according to gas interaction signals and power generation interaction signals.

[0022] The system comprises the following components: Host computer 1 serves as the interactive terminal for the fuel cell power generation system, and can take the form of an industrial all-in-one machine, an industrial control computer, or a remote monitoring platform. Switch 2 is an industrial Ethernet communication hardware unit, acting as a network relay device for internal data exchange within the fuel cell power generation system. Power generation management unit 3 is the main controller of the fuel cell power generation system, responsible for its control and energy conversion. It can receive instructions from host computer 1 and upload the operating status of the fuel cell power generation system to host computer 1. Gas management unit 4 is responsible for gas supply and desulfurization of the fuel cell power generation system. Power generation unit 5 comprises the fuel cell stack and auxiliary systems of the fuel cell power generation system. This data acquisition architecture uses host computer 1 as its core, connected to switch 2 via industrial Ethernet. Switch 2 connects to power generation management unit 3, gas management unit 4, and power generation unit 5 via industrial Ethernet, enabling data aggregation and collection from the fuel cell power generation system.

[0023] The gas management unit 4 can transmit gas-related signals, including measurement signals such as pressure, temperature, and flow rates. The power generation signals can include fuel cell stack parameter signals. The power generation management unit 3 can control the operating state of the gas management unit 4 and the power generation unit 5 based on the gas-related signals.

[0024] Specifically, the gas management unit 4 outputs gas interaction signals to the power generation management unit 3 through the switch 2, and the power generation unit 5 sends power generation interaction signals to the power generation management unit 3 through the switch 2. The power generation management unit 3 receives the gas interaction signals and power generation interaction signals transmitted by the switch 2 and controls the working status of the gas management unit 4 and the power generation unit 5 respectively.

[0025] Understandably, the power generation management unit 3, gas management unit 4, and power generation unit 5 respectively aggregate their corresponding data and transmit it to the host computer 1 via the switch 2. The host computer 1 then collects, parses, and saves the real-time communication data.

[0026] The technical solution of this invention establishes a data acquisition architecture for a fuel cell power generation system, creating a centralized communication network between the host computer, the switch, and various functional units. This replaces traditional relay hardware, enables the acquisition of several high-frequency data, simplifies on-site networking, and improves debugging and operation efficiency.

[0027] Optional, continue to refer to Figure 1 As shown, the power generation management unit 3 includes a power generation control unit 31, a cooling fan 32, a serial server 33, and an energy storage converter 34; The power generation control unit 31 is connected to the switch 2 via Ethernet; the power generation control unit 31 is connected to the host computer 1 and the cooling fan 32 via hardwired connections; the serial server 33 is connected to the switch 2 via Ethernet; the energy storage converter 34 is connected to the serial server 33. Gas management unit 4 is used to output power generation fault information to host computer 1 via hard wire when power generation control unit 31 stops outputting power generation interaction signals to switch 2; The cooling fan 32 is used to operate at its rated maximum power when it stops receiving the cooling control signal output by the power generation control unit 31; The serial port server 33 is used to send heartbeat packets to the energy storage converter 34 at preset intervals.

[0028] The power generation control unit 31 can be the controller in the power generation management unit 3. The cooling fan 32 can be used to control the operating temperature of the fuel cell stack. The serial port server 33 can be used for mutual conversion between different serial ports. The energy storage converter 34 can be used to realize bidirectional AC / DC conversion of the energy storage battery. The power generation fault information can be the fault information of the power generation control unit 31. The heat dissipation control signal can be the speed control signal of the cooling fan 32. The heartbeat packet can be used to periodically confirm whether the communication between the serial port server 33 and the energy storage converter 34 is normal.

[0029] Specifically, the power generation control unit 31 transmits data to the switch 2 via Ethernet, thereby enabling communication with the host computer 1. The power generation control unit 31 is also connected to the host computer 1 and the cooling fan 32 via hardwired connections. When the communication line between the power generation control unit 31 and the switch 2 fails, data can still be transmitted to the host computer 1 via hardwired connections. When the power generation control unit 31 stops outputting power generation interaction signals to the switch 2, it indicates a possible fault in the power generation control unit 31, and the gas management unit 4 does not receive the power generation interaction signals. In this case, the gas management unit 4 outputs power generation fault information to the host computer 1 via hardwired connections. The host computer 1 stores the data and performs maintenance on the power generation control unit 31. When the power generation control unit 31 malfunctions, the cooling fan 32 stops receiving cooling control signals. To ensure effective cooling, the cooling fan 32 is set to operate at its rated maximum power. The serial port server 33 and the energy storage converter 34 can be connected via a dual-channel 485 communication. The serial port server 33 periodically sends heartbeat packets to the energy storage converter 34 to ensure that the energy storage converter 34 can continue to operate when the power generation control unit 31 fails.

[0030] It is understood that in this embodiment of the invention, the power generation control unit 31 and the host computer 1 are connected via a switch 2, and a hard wire is also provided to connect the power generation control unit 31 and the host computer 1 to avoid the problem of data transmission failure caused by switch 2 failure, thus ensuring data transmission between the power generation control unit 31 and the host computer 1.

[0031] Optional, continue to refer to Figure 1 As shown, the gas management unit 4 includes a gas management control unit 41, an exhaust fan 42, and a gas valve 43; The gas management control unit 41 is connected to the switch 2 via Ethernet communication; the gas management control unit 41 is connected to the host computer 1, the exhaust fan 42 and the gas valve 43 via hard wires respectively, and is used to control the working status of the exhaust fan 42 and the gas valve 43 respectively. The power generation management unit 3 is used to output gas fault information to the host computer 1 via hard wire when the gas management control unit 41 stops outputting power generation interaction signals to the switch 2. The exhaust fan 42 is used to stop operating at its rated maximum speed when it receives the speed control signal output by the gas management control unit 41; The gas valve 43 is used to maintain the current opening state when it stops receiving valve control signals output by the gas management control unit 41.

[0032] The gas management control unit 41 can be used for signal acquisition, fault diagnosis and processing within the gas management unit 4. The exhaust fan 42 can be used to discharge gas. The gas valve 43 can be used to control the gas flow rate. The gas management control unit 41 communicates with the host computer 1 via the switch 2, and also directly communicates with the host computer 1 via a hardwired connection. When the switch 2 is working normally, the gas management control unit 41 outputs a power generation interaction signal to the host computer 1 through the switch 2; when the switch 2 fails, the gas management control unit 41 outputs a signal to the host computer 1 via a hardwired connection.

[0033] Specifically, when the gas management control unit 41 malfunctions, it stops outputting power generation interaction signals to the power generation management unit 3, stops outputting speed control signals to the exhaust fan 42, and stops outputting valve control signals to the gas valve 43. At this time, the power generation management unit 3 outputs gas fault information to the host computer 1 via hardwired connection to notify inspection and maintenance. To ensure that leaked gas can be discharged in a timely manner, the exhaust fan 42 operates at its maximum speed due to the lack of speed control signals, preventing gas accumulation. When the gas valve 43 stops receiving valve control signals from the gas management control unit 41, it maintains its current opening state. In some embodiments, the drive circuit of the gas valve 43 can adopt a relay self-locking design to ensure that the original state is maintained when there is no valve control signal.

[0034] The technical solution of this invention includes a gas management unit comprising a gas management control unit, an exhaust fan, and a gas valve. In the event of a failure of the gas management control unit, the exhaust fan and the gas valve continue to perform their respective functions, ensuring a stable and safe gas supply to the fuel cell power generation system. Simultaneously, the power generation management unit outputs gas fault information to the host computer via hardwired connection, ensuring the normal operation of the fuel cell power generation system.

[0035] Optional, continue to refer to Figure 1 As shown, the power generation unit 5 includes a conversion unit 51 and a fuel cell control unit 52; The fuel cell control unit 52 and the conversion unit 51 are connected via a two-wire differential multi-master arbitration serial bus; the conversion unit 51 is used for the conversion between two-wire differential multi-master arbitration serial bus communication and Ethernet communication.

[0036] The conversion unit 51 can be used to convert between two-wire differential multi-master arbitration serial bus communication and Ethernet communication.

[0037] Specifically, when the power generation unit 5 outputs a power generation control signal to the switch 2, the conversion unit 51 converts CAN communication to Ethernet communication; when the host computer 1 outputs a signal to the power generation unit 5 through the switch 2, the conversion unit 51 converts Ethernet communication to CAN communication.

[0038] In some embodiments, the power generation unit 5 further includes a plurality of sensor actuators 53. The fuel cell control unit 52 is connected to the sensor actuators 53 via hardwire communication and receives and processes the detection signals from the sensor actuators.

[0039] Optional, continue to refer to Figure 1 As shown, the data acquisition architecture includes at least two power generation units 5; each power generation unit 5 is communicatively connected to the switch 2.

[0040] All power generation units 5 are connected to the switch 2 for communication, and the host computer 1 can independently control each power generation unit 5 through the switch 2.

[0041] In some embodiments, the acquisition period of the host computer 1 is set to 100ms, which can simultaneously acquire data from the gas management unit 4, the power generation management unit 3 and multiple power generation units 5, display and store them locally in real time, without the need for additional hardware. During the debugging process, only the host computer 1 is needed to complete the data monitoring of the entire system.

[0042] The technical solution of this invention has the following advantages: Convenience of on-site commissioning: Only one host computer is needed on-site to collect data from the entire fuel cell power generation system, eliminating the need for multi-device networking or additional relay hardware, thus reducing the commissioning threshold and complexity.

[0043] Eliminating intermediary dependencies: Eliminating intermediate modules in traditional data acquisition (such as dedicated protocol gateways and multi-serial port servers), and using a lightweight architecture of industrial Ethernet + CAN to Ethernet, reducing hardware failure points and improving system reliability and ease of operation.

[0044] High-frequency centralized data acquisition capability: Utilizing the high bandwidth of industrial Ethernet and the real-time performance of CAN communication, centralized, high-frequency (millisecond-level) data acquisition from multiple units is achieved to meet the refined monitoring requirements of fuel cell power generation systems.

[0045] Based on the same inventive concept. Figure 2 This is a flowchart of a control method for a data acquisition architecture of a first fuel cell power generation system according to an embodiment of the present invention, combined with... Figure 1 and Figure 2 As shown, this embodiment of the invention provides a control method for a data acquisition architecture of a fuel cell power generation system, applied in the data acquisition architecture; the control method includes: S10, the power generation management unit receives gas interaction signals and power generation interaction signals through the switch.

[0046] S11. The power generation management unit controls the working status of the gas management unit and the power generation unit based on the gas interaction signal and the power generation interaction signal.

[0047] Specifically, the gas management unit 4 outputs gas interaction signals to the power generation management unit 3 through the switch 2, and the power generation unit 5 sends power generation interaction signals to the power generation management unit 3 through the switch 2. The power generation management unit 3 receives the gas interaction signals and power generation interaction signals transmitted by the switch 2 and controls the working status of the gas management unit 4 and the power generation unit 5 respectively.

[0048] The technical solution of this invention, based on the established centralized communication network of host computer-switch-gas management unit, power generation management unit and power generation unit, enables gas interaction signals and power generation interaction signals to be transmitted to host computer through the switch, thereby realizing high-frequency data acquisition.

[0049] Based on the above embodiments, Figure 3 This is a flowchart of a control method for a data acquisition architecture of a second fuel cell power generation system provided by an embodiment of the present invention, combined with... Figure 1 and Figure 3 As shown, the gas management unit 4 includes a gas management control unit 41, an exhaust fan 42, and a gas valve 43. The control method includes: S20. The power generation management unit receives gas interaction signals and power generation interaction signals through the switch.

[0050] S21. The power generation management unit controls the working status of the gas management unit and the power generation unit based on the gas interaction signal and the power generation interaction signal.

[0051] S22. When the gas management control unit stops outputting power generation interaction signals to the switch, the power generation management unit outputs gas fault information to the host computer via hardwire.

[0052] When the gas management control unit 41 malfunctions, it stops outputting power generation interaction signals to the switch 2. At this time, the power generation management unit 3 outputs gas fault information to the host computer 1 via hard wire to notify inspection and maintenance.

[0053] S23. When the gas management control unit stops outputting speed control signals to the exhaust fan, the exhaust fan operates at its rated maximum speed.

[0054] When the gas management control unit 41 malfunctions, it stops outputting speed control signals to the exhaust fan 42. The exhaust fan 42 then runs at its maximum speed due to the lack of speed control signals, thus preventing gas from accumulating.

[0055] S24. When the gas management control unit stops outputting valve control signals to the gas valve, the gas valve maintains its current opening state.

[0056] When the gas management control unit 41 malfunctions, it stops outputting valve control signals to the gas valve 43, and the gas valve 43 maintains its current opening state.

[0057] Specifically, when the gas management control unit 41 malfunctions, it stops outputting power generation interaction signals to the power generation management unit 3, stops outputting speed control signals to the exhaust fan 42, and stops outputting valve control signals to the gas valve 43. At this time, the power generation management unit 3 outputs gas fault information to the host computer 1 via hardwired connection to notify inspection and maintenance. To ensure that leaked gas can be discharged in a timely manner, the exhaust fan 42 operates at its maximum speed due to the lack of speed control signals, preventing gas accumulation. When the gas valve 43 stops receiving valve control signals from the gas management control unit 41, it maintains its current opening state. In some embodiments, the drive circuit of the gas valve 43 can adopt a relay self-locking design to ensure that the original state is maintained when there is no valve control signal.

[0058] The technical solution of this invention ensures that the exhaust fan and gas valve continue to function when the gas management control unit fails, thus ensuring a stable and safe gas supply to the fuel cell power generation system. At the same time, the power generation management unit outputs gas fault information to the host computer via hardwired connection, ensuring the normal operation of the fuel cell power generation system.

[0059] Based on the above embodiments, Figure 4This is a flowchart of the control method for the data acquisition architecture of the third fuel cell power generation system provided by the embodiments of the present invention, combined with... Figure 1 and Figure 4 As shown, the power generation management unit 3 includes a power generation control unit 31, a cooling fan 32, a serial port server 33, and an energy storage converter 34. The control method includes: S30, the power generation management unit receives gas interaction signals and power generation interaction signals through the switch.

[0060] S31. The power generation management unit controls the working status of the gas management unit and the power generation unit based on the gas interaction signal and the power generation interaction signal.

[0061] S32. When the power generation control unit stops outputting power generation interaction signals to the switch, the gas management unit outputs power generation fault information to the host computer via hardwire.

[0062] Among them, the power generation fault information may be the fault information of the power generation control unit 31.

[0063] S33. When the power generation control unit stops outputting heat dissipation control signals to the cooling fan, the cooling fan operates at its rated maximum power.

[0064] The heat dissipation control signal can be the speed control signal of the cooling fan 32.

[0065] S34. The serial port server sends heartbeat packets to the energy storage converter at a preset period.

[0066] The heartbeat packet can be used to periodically confirm whether the communication between the serial port server 33 and the energy storage converter 34 is normal.

[0067] Specifically, when the power generation control unit 31 stops outputting power generation interaction signals to the switch 2, it indicates that the power generation control unit 31 may be faulty. The gas management unit 4 does not receive the power generation interaction signals. At this time, the gas management unit 4 outputs power generation fault information to the host computer 1 via hardwired connection. The host computer 1 stores the data and performs maintenance on the power generation control unit 31. When the power generation control unit 31 is faulty, the cooling fan 32 stops receiving cooling control signals. To ensure effective cooling, the cooling fan 32 is set to operate at its rated maximum power. Furthermore, the serial server 33 periodically sends heartbeat packets to the energy storage converter 34 to ensure that the energy storage converter 34 continues to operate even when the power generation control unit 31 fails.

[0068] Based on the above embodiments, Figure 5 This is a flowchart of the control method for the data acquisition architecture of the fourth fuel cell power generation system provided by the present invention, combined with... Figure 1 and Figure 5As shown, the power generation management unit 3 includes a power generation control unit 31, a cooling fan 32, a serial port server 33, and an energy storage converter 34. The control method includes: S40, the power generation management unit receives gas interaction signals and power generation interaction signals through the switch.

[0069] S41. The power generation management unit controls the working status of the gas management unit and the power generation unit based on the gas interaction signal and the power generation interaction signal.

[0070] S42. When the power generation control unit stops outputting power generation interaction signals to the switch, the gas management unit outputs power generation fault information to the host computer via hardwire.

[0071] S43. The gas management unit receives the power generation interaction signal through the switch and controls the working status of the power generation unit according to the power generation interaction signal.

[0072] When the power generation control unit 31 fails and cannot output a signal, the gas management unit 4 takes over the function of the power generation control unit 31, receives the power generation interaction signal through the switch 2 and controls the working status of the power generation unit 5.

[0073] S44. When the power generation control unit stops outputting heat dissipation control signals to the cooling fan, the cooling fan operates at its rated maximum power.

[0074] S45. The serial port server sends heartbeat packets to the energy storage converter at a preset period.

[0075] It is understood that in this embodiment of the invention, the power generation management unit 3 can be used as the main controller and the gas management unit 4 as the slave controller. Under normal operation, the power generation management unit 3 receives power generation interaction signals and controls the working state of the power generation unit 5; however, when the power generation control unit 31 fails, it cannot interact with signals. Therefore, at this time, the gas management unit 4 takes over the function of the power generation control unit 31, receives power generation interaction signals through the switch 2, and controls the working state of the power generation unit 5.

[0076] The technical solution of this invention adopts a two-layer control system with a master-slave collaborative architecture. When the power generation management unit fails, the gas management unit is used as the controller to receive and process signals, ensuring the normal operation of the fuel cell power generation system.

[0077] Based on the above embodiments, Figure 6 This is a flowchart of the control method for the data acquisition architecture of the fifth fuel cell power generation system provided by the present invention, combined with... Figure 1 and Figure 6 As shown, the power generation management unit 3 includes a power generation control unit 31, a cooling fan 32, a serial port server 33, and an energy storage converter 34. The control method includes: S50, the power generation management unit receives gas interaction signals and power generation interaction signals through the switch.

[0078] S51. The power generation management unit controls the working status of the gas management unit and the power generation unit based on the gas interaction signal and the power generation interaction signal.

[0079] S52. When the power generation control unit stops outputting power generation interaction signals to the switch, the gas management unit outputs power generation fault information to the host computer via hardwire.

[0080] S53. The power generation unit receives gas interaction signals through the switch and controls the working status of the gas management unit according to the gas interaction signals.

[0081] When the power generation control unit 31 fails and cannot output a signal, the power generation unit 5 takes over the function of the power generation control unit 31, receives gas interaction signals through the switch 2 and controls the working status of the gas management unit 4.

[0082] S54. When the power generation control unit stops outputting heat dissipation control signals to the cooling fan, the cooling fan operates at its rated maximum power.

[0083] It is understood that, in the technical solution of this embodiment of the invention, when the power generation control unit 31 fails, multiple power generation units 5 can act as temporary main controllers to coordinate the operation of the gas management unit 4 and other power generation units 5, so as to ensure the stable operation of the system or execute a safe shutdown strategy.

[0084] The technical solution of this invention has the following advantages: High safety and reliability: Triple redundancy (electrical self-locking, hard-wired backup, dual controllers) ensures no safety hazards under extreme operating conditions.

[0085] Strong fault tolerance and continuity: Seamless switching between master and slave controllers ensures that a single failure does not affect overall operation and guarantees power supply continuity.

[0086] Real-time stability: Network communication ensures timeliness, and hard-wired connections prevent loss of control, balancing real-time performance with determinism.

[0087] Easy to expand and maintain: The modular architecture makes it easy to add or remove devices, and the dual-channel alarm mechanism facilitates rapid fault location.

[0088] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0089] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A data acquisition architecture for a fuel cell power generation system, characterized in that, Includes host computer, switch, power generation management unit, gas management unit and power generation unit; The power generation management unit, the gas management unit, and the power generation unit are each connected to the switch via Ethernet communication; the switch is connected to the host computer via the Ethernet communication. The gas management unit is used to output a gas interaction signal to the power generation management unit through the switch; the power generation unit is used to output a power generation interaction signal to the power generation management unit through the switch; the power generation management unit is used to receive the gas interaction signal and the power generation interaction signal through the switch and control the working status of the gas management unit and the power generation unit according to the gas interaction signal and the power generation interaction signal.

2. The data acquisition architecture according to claim 1, characterized in that, The power generation management unit includes a power generation control unit, a cooling fan, a serial server, and an energy storage converter; The power generation control unit is connected to the switch via Ethernet; the power generation control unit is connected to the host computer and the cooling fan via hardwired connections; the serial port server is connected to the switch via Ethernet; the energy storage converter is connected to the serial port server. The gas management unit is used to output power generation fault information to the host computer via the hard wire when the power generation control unit stops outputting the power generation interaction signal to the switch. The cooling fan is used to operate at its rated maximum power when it stops receiving the cooling control signal output by the power generation control unit; The serial port server is used to send heartbeat packets to the energy storage converter at preset intervals.

3. The data acquisition architecture according to claim 1, characterized in that, The gas management unit includes a gas management control unit, an exhaust fan, and a gas valve; The gas management control unit is connected to the switch via Ethernet communication; the gas management control unit is connected to the host computer, the exhaust fan and the gas valve via hardwired communication, respectively, for controlling the working status of the exhaust fan and the gas valve; The power generation management unit is used to output gas fault information to the host computer via the hard wire when the gas management control unit stops outputting the power generation interaction signal to the switch. The exhaust fan is used to stop operating at its rated maximum speed when it receives a speed control signal output by the gas management control unit; The gas valve is used to maintain its current opening state when it stops receiving valve control signals output by the gas management control unit.

4. The data acquisition architecture according to claim 1, characterized in that, The power generation unit includes a conversion unit and a fuel cell control unit; The fuel cell control unit and the conversion unit are connected via a two-wire differential multi-master arbitration serial bus; the conversion unit is used for converting between two-wire differential multi-master arbitration serial bus communication and Ethernet communication.

5. The data acquisition architecture according to claim 1, characterized in that, The data acquisition architecture includes at least two power generation units; each power generation unit is communicatively connected to the switch.

6. A control method for a data acquisition architecture of a fuel cell power generation system, characterized in that, The control method is applied in the data acquisition architecture described in any one of claims 1-5, and includes: The power generation management unit receives gas interaction signals and power generation interaction signals through a switch; The power generation management unit controls the working status of the gas management unit and the power generation unit according to the gas interaction signal and the power generation interaction signal.

7. The control method according to claim 6, characterized in that, The gas management unit includes a gas management control unit, an exhaust fan, and a gas valve; The control method further includes: When the gas management control unit stops outputting the power generation interaction signal to the switch, the power generation management unit outputs gas fault information to the host computer through the hard wire; When the gas management control unit stops outputting speed control signals to the exhaust fan, the exhaust fan operates at its rated maximum speed; When the gas management control unit stops outputting valve control signals to the gas valve, the gas valve maintains its current opening state.

8. The control method according to claim 6, characterized in that, The power generation management unit includes a power generation control unit, a cooling fan, a serial server, and an energy storage converter; The control method further includes: When the power generation control unit stops outputting the power generation interaction signal to the switch, the gas management unit outputs power generation fault information to the host computer via the hard wire; When the power generation control unit stops outputting heat dissipation control signals to the cooling fan, the cooling fan operates at its rated maximum power; The serial port server sends heartbeat packets to the energy storage converter at a preset period.

9. The control method according to claim 8, characterized in that, When the power generation control unit stops outputting the power generation interaction signal to the switch, after the gas management unit outputs power generation fault information to the host computer via the hardwire, the system further includes: The gas management unit receives the power generation interaction signal through the switch and controls the working status of the power generation unit according to the power generation interaction signal.

10. The control method according to claim 8, characterized in that, When the power generation control unit stops outputting the power generation interaction signal to the switch, after the gas management unit outputs power generation fault information to the host computer via the hardwire, the system further includes: The power generation unit receives the gas interaction signal through the switch and controls the working status of the gas management unit according to the gas interaction signal.

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