Compressed air and fuel cell hybrid system and distributed energy system having same

Abstract

The utility model relates to a kind of compressed air and fuel cell collaborative system and the distributed energy system with it, comprising: drive assembly, energy storage component, pressure regulating component and fuel cell system, one end of drive assembly is connected with grid end, the other end is connected with the compressed end of energy storage component, in valley energy storage phase, drive assembly drives energy storage component to carry out air compression by compressed end, in peak power supply phase and the case where fuel cell system power supply is insufficient, power supply for grid end;The input end of pressure regulating component is connected with the output end of energy storage component, the output end of pressure regulating component is connected with fuel cell system, adjust the oxygen supply of fuel cell system;Fuel cell system is connected with grid end, in peak power supply phase, fuel cell system power supply for grid end, thereby, solve the problem that compressed air energy storage system and fuel cell system cannot be cooperatively controlled in relevant technology, leading to system response delay is longer, energy efficiency is too low, improve the real-time of system energy efficiency and control.

Description

Technical Field

[0001] This utility model relates to the field of intelligent control technology, and in particular to a compressed air and fuel cell collaborative system and a distributed energy system having the same. Background Technology

[0002] As the proportion of new energy sources increases, the volatility of their power generation exacerbates the supply-demand imbalance in the power grid. Compressed air energy storage, as a mature large-scale energy storage technology, has become an important choice for power grid peak shaving due to its low cost and long lifespan.

[0003] In related technologies, compressed air is mainly compressed to a certain pressure through a compressed air energy storage system for hydrogen fuel cell power generation, and the power is directly supplied through the electrochemical reaction of the fuel cell system.

[0004] However, the relevant technologies do not couple the compressed air energy storage system and the fuel cell system. Compressed air expansion power generation usually involves directly releasing the compressed air into the air. At the same time, the gas absorbs heat from the liquid in the liquid pool, causing the liquid temperature to drop. This, in turn, lowers the temperature of the high-pressure hydrogen and compressed air, affecting the power generation efficiency of the fuel cell system. This results in long system response delays and low system energy efficiency, which urgently need to be addressed. Utility Model Content

[0005] This invention provides a compressed air and fuel cell collaborative system and a distributed energy system thereon, to solve the problems of long system response delay and low energy efficiency caused by the inability of compressed air energy storage system and fuel cell system to coordinate control in related technologies, thereby improving system energy efficiency and real-time control.

[0006] The first aspect of this utility model provides a compressed air and fuel cell co-operated system, comprising: a drive component, an energy storage component, a pressure regulating component, and a fuel cell system. One end of the drive component is connected to the power grid, and the other end is connected to the compression end of the energy storage component. During off-peak electricity storage, the drive component drives the energy storage component to compress air via the compression end. During peak electricity supply and when the fuel cell system's power supply is insufficient, the drive component supplies power to the power grid. The input end of the pressure regulating component is connected to the output end of the energy storage component, and the output end of the pressure regulating component is connected to the fuel cell system. The pressure regulating component adjusts the oxygen supply of the fuel cell system. The fuel cell system is connected to the power grid, and during peak electricity supply, the fuel cell system supplies power to the power grid.

[0007] Furthermore, the energy storage component includes: a compressed air energy storage system, the compressed air energy storage system including a compressor, and the other end of the drive component is connected to the compressor through the compression end.

[0008] Furthermore, the energy storage component also includes: an air storage tank, one end of which is connected to the output end of the compressed air energy storage system, and the other end of which is connected to the input end of the pressure regulating component. The air storage tank is used to store compressed air.

[0009] Furthermore, the pressure regulating component is an electrically operated pressure regulating valve.

[0010] Furthermore, the compressed air and fuel cell co-operated system also includes an inverter, the input end of which is connected to the output end of the fuel cell system, and the output end of which is connected to the power grid. The inverter is used to convert the direct current output by the fuel cell system into alternating current.

[0011] Furthermore, the inverter is an AC-DC converter.

[0012] Furthermore, the compressed air and fuel cell collaborative system also includes: a data acquisition module for collecting the actual power generation efficiency of the fuel cell, the current predicted efficiency, the real-time load demand of the power grid, and the real-time pressure of the gas storage tank; and a display module connected to the data acquisition module for displaying the actual power generation efficiency of the fuel cell, the current predicted efficiency, the real-time load demand of the power grid, and the real-time pressure of the gas storage tank.

[0013] Furthermore, the compressed air and fuel cell co-operation system also includes a reminder component for providing a power reduction reminder when the fuel cell system is operating at reduced power.

[0014] Furthermore, the reminder component includes: an acoustic reminder unit that provides acoustic power reduction reminders when the fuel cell system is operating at reduced power; and / or an optical reminder unit that provides optical power reduction reminders when the fuel cell system is operating at reduced power.

[0015] The compressed air and fuel cell co-operated system provided by this utility model consists of a drive component, an energy storage component, and a fuel cell system. One end of the drive component is connected to the power grid, and the other end is connected to the energy storage component. The drive component compresses air or supplies power to the power grid. The output end of the energy storage component is connected to the fuel cell system to provide oxygen and store energy during off-peak hours. The fuel cell system is connected to the power grid and supplies power to the power grid during peak hours. This system solves the problems of long system response delay and low energy efficiency caused by the inability to coordinate the control of the compressed air energy storage system and the fuel cell system in related technologies, and improves the system's energy efficiency and real-time control performance.

[0016] The second aspect of this utility model provides a distributed energy system, which includes the above-described compressed air and fuel cell coordinated system.

[0017] Therefore, this utility model has the following beneficial effects: (1) This utility model avoids the problem that related technologies rely on historical data or fixed parameters and cannot perceive changes in equipment performance in real time. It uses a digital twin model to map the equipment status in real time, predict the completion time of energy storage and the decay of power generation efficiency in advance, and reduce the time delay of dynamic compensation.

[0018] (2) This utility model realizes dual-stage decoupling control, focusing on energy storage power optimization during off-peak hours to reduce ineffective compression energy consumption, and emphasizing power supply efficiency compensation and load balancing during peak hours to improve grid response capability and enhance grid power supply reliability.

[0019] (3) The electric motor of this utility model is only used for generating electricity and outputting it to the grid during peak hours. It avoids energy loss caused by reverse compression. Through the pressure threshold protection of the gas storage tank, it ensures that compressed air is used preferentially for fuel cell power supply, thereby improving system energy efficiency.

[0020] (4) This utility model comprehensively considers the energy storage cost during off-peak hours, the power supply revenue during peak hours, and the lifespan of the equipment through pressure threshold protection. Through dynamic priority switching, such as efficiency compensation taking priority over load balancing taking priority over pressure safety, the system achieves global optimization.

[0021] (5) This utility model provides a closed-loop control system structure including a digital twin module, an edge computing node and physical devices. The digital twin module maps the dynamic characteristics of the compressed air energy storage system (motor, air tank) and the fuel cell system in real time, reducing the ineffective compression energy consumption of off-peak electricity storage and reducing the energy storage cost. The edge computing node realizes data acquisition, preprocessing and twin model driving, shortening the response delay. The physical devices (motor, electric pressure regulating valve) receive cloud control commands, reducing the response closed-loop time and more accurately matching peak and off-peak electricity price fluctuations. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which: Figure 1 This is a schematic diagram of the structure of the compressed air and fuel cell co-operated system provided according to this utility model; Figure 2 This is a schematic diagram of a compressed air and fuel cell co-operated system according to the present invention; Figure 3 This is a flowchart of a control method for a compressed air and fuel cell co-operated system according to a specific embodiment of the present invention. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0024] The following description, with reference to the accompanying drawings, details the compressed air and fuel cell co-operated system of this invention and a distributed energy system incorporating it. Addressing the issue mentioned in the background section regarding the lack of coupling between the compressed air energy storage system and the fuel cell system, this invention provides a compressed air and fuel cell co-operated system. This system comprises a drive component, an energy storage component, and a fuel cell system. One end of the drive component is connected to the power grid, and the other end is connected to the energy storage component. The drive component compresses air or supplies power to the power grid. The output of the energy storage component is connected to the fuel cell system to provide oxygen and store energy during off-peak hours. The fuel cell system is connected to the power grid and supplies power during peak hours. This system solves the problems of long system response delays and low energy efficiency caused by the inability to coordinate the control of the compressed air energy storage system and the fuel cell system in related technologies, thereby improving system energy efficiency and real-time control performance.

[0025] Specifically, Figure 1 This is a block diagram of a compressed air and fuel cell co-operated system according to an embodiment of the present invention.

[0026] like Figure 1 As shown, the compressed air and fuel cell co-operated system 10 includes: a drive component 100, an energy storage component 200, a pressure regulating component 300, and a fuel cell system 400. One end of the drive component 100 is connected to the power grid, and the other end is connected to the compression end of the energy storage component 200. During off-peak electricity storage, the drive component 100 drives the energy storage component 200 to compress air through the compression end. During peak electricity supply and when the fuel cell system 400 has insufficient power, the drive component 100 supplies power to the power grid. The input end of the pressure regulating component 300 is connected to the output end of the energy storage component 200, and the output end of the pressure regulating component 300 is connected to the fuel cell system 400. The pressure regulating component 300 regulates the oxygen supply of the fuel cell system 400. The fuel cell system 400 is connected to the power grid, and during peak electricity supply, the fuel cell system 400 supplies power to the power grid.

[0027] Furthermore, the energy storage component 200 includes: a compressed air energy storage system 202, which includes a compressor 201, and the other end of the drive component 100 is connected to the compressor 201; Furthermore, the energy storage component 200 also includes: an air storage tank 203, one end of which is connected to the output end of the compressed air energy storage system 202, and the other end of which is connected to the fuel cell system 300. The air storage tank 203 is used to store compressed air.

[0028] Specifically, the compressed air energy storage system 202 is the core unit for energy storage and release. During off-peak hours, it compresses and stores air by consuming electrical energy. During peak hours, it releases the compressed air to drive the equipment to generate electricity. During the off-peak energy storage phase, the compressor is driven by the drive component 100 to compress the air to a high-pressure state, providing a high-pressure air source for the energy storage tank 203. Through proportional-integral control algorithm, it can avoid energy waste caused by the storage tank 203 reaching the pressure limit in advance. The storage tank 203 is used to store high-pressure compressed air, which is released as an energy carrier during peak hours. On the one hand, it provides the air required for the reaction of the fuel cell system, and on the other hand, it drives the electric motor to generate electricity to supplement the grid load.

[0029] Furthermore, the drive component 100 is mechanically connected to the compressor. During off-peak hours, the electric motor drives the compressor to compress air and send it into the air storage tank 203. During peak hours, the electric motor switches to power generation mode, and the compressed air output from the air storage tank 203 drives the power generation. The air storage tank 203 is connected to the output end through a pipeline. The output end can control the flow rate and pressure of the compressed air through valves and other devices to ensure that energy is released as needed during peak hours. The air storage tank 203 is connected to the fuel cell system 400 through a branch pipeline at the output end to provide it with the air required for the reaction. The air supply flow rate can be adjusted through a proportional-integral control algorithm to compensate for the fuel cell efficiency degradation and improve the stability of power generation.

[0030] For example, during off-peak hours, the electric motor drives the compressor to compress outside air to the target pressure value. A proportional-integral control algorithm can be used to calculate the power adjustment value of the drive component. Based on the time error predicted by the digital twin model (i.e., the power adjustment value of the drive component), the compression power of the electric motor is dynamically adjusted. At the same time, the air storage tank 203 continuously stores high-pressure air, and the pressure gradually rises from the initial 0 MPa to the threshold pressure to complete energy storage. During peak hours, the pressure of the air storage tank 203 drops, and the output end distributes compressed air to the fuel cell system 400 and the electric motor through the pipeline. During this process, the energy replenishment efficiency of the fuel cell system 400 is improved through the fuel cell efficiency compensation algorithm. During peak hours, the coordinated control mode of fuel cell priority power supply and electric motor power generation is as follows: when the real-time load demand of the grid is greater than the actual power supply of the fuel cell system, the electric motor is controlled to generate electricity through the grid load replenishment algorithm, and the pressure safety control algorithm protects the pressure of the air storage tank 203. The electric motor is prohibited from compressing until the pressure is restored to avoid overload of the energy storage system.

[0031] It should be noted that related technologies rely on a large amount of historical data for offline parameter tuning to determine the control method. The digital twin model used in this invention can update parameters online, improving the applicability of the dynamic compensation method. The digital twin model can be the digital twin model in related technologies, and prediction can be achieved through pre-training. To avoid redundancy, the training process of the digital twin model will not be described in detail.

[0032] Optionally, in some embodiments, the pressure regulating component 300 is an electrically operated pressure regulating valve.

[0033] Specifically, the output end of the gas storage tank 203 is connected to the input end of the pressure regulating component 300 through the main pipeline, and the output end of the pressure regulating component 300 is connected to the oxygen inlet of the fuel cell system 400 through the branch pipeline. The pressure regulating component 300 can precisely regulate the pressure of compressed air flowing from the gas storage tank 203 into the fuel cell system 400, ensuring that the oxygen pressure entering the fuel cell is stable within the target pressure range and buffering pressure fluctuations in the gas storage tank 203.

[0034] Furthermore, the compressed air and fuel cell co-operated system 10 also includes an inverter 500. The input terminal of the inverter 500 is connected to the output terminal of the fuel cell system 300, and the output terminal of the inverter 500 is connected to the power grid. The inverter 500 is used to convert the direct current output by the fuel cell system 300 into alternating current.

[0035] The inverter 500 can be an AC-DC converter.

[0036] Specifically, the fuel cell generates direct current (DC) through an electrochemical reaction, while the power grid transmits and uses alternating current (AC). The inverter 500 can convert the DC output from the fuel cell system 400 into AC that conforms to the power grid standard and output it to the power grid, realizing the distribution, scheduling, and utilization of electricity. At the same time, the inverter 500 also has voltage stabilization, frequency stabilization, and filtering functions, which can eliminate harmonics and fluctuations in the DC output of the fuel cell and ensure the stability of the AC power quality connected to the power grid.

[0037] Furthermore, the compressed air and fuel cell collaborative system of this utility model also includes a data acquisition module for collecting the actual power generation efficiency of the fuel cell, the current predicted efficiency, the real-time load demand of the power grid, and the real-time pressure of the air storage tank; and a display module connected to the data acquisition module, which is used to display the actual power generation efficiency of the fuel cell, the current predicted efficiency, the real-time load demand of the power grid, and the real-time pressure of the air storage tank.

[0038] Specifically, the data acquisition module collects the current actual power generation efficiency and, based on historical data and the efficiency predicted by the digital twin model, obtains the current predicted efficiency of the fuel cell, and collects the total power required by the power grid and the current pressure of the compressed air storage tank; the display module visualizes the collected data and displays it in the form of charts, numbers, etc., for operators to monitor the system status.

[0039] It should be understood that the data acquisition module may include built-in sensors or data processing algorithms, and the display module may be an operable touch screen, an acoustic alarm device such as a buzzer, or an optical alarm device such as a warning spotlight.

[0040] The present invention also includes a reminder component for providing a power reduction reminder when the fuel cell system is operating at reduced power.

[0041] The reminder component includes an acoustic reminder unit that provides acoustic power reduction reminders when the fuel cell system is operating at reduced power; and / or an optical reminder unit that provides optical power reduction reminders when the fuel cell system is operating at reduced power.

[0042] Specifically, the acoustic alert unit uses sound such as buzzers and voice announcements to alert operators to changes in system status. For example, the buzzer sounds an alarm with intermittent "beep-beep-beep" tones, while the voice announces the power reduction of the fuel cell system. The optical alert unit uses light-emitting diodes (LEDs) and color changes on the display screen to alert operators to changes in system status. For example, the LED indicator in the control room changes from green (normal) to yellow (warning) while a red prompt box pops up on the display screen, indicating that the fuel cell system is operating at reduced power.

[0043] To enable those skilled in the art to better understand the compressed air and fuel cell coordinated system of this utility model embodiment, the following will be described. Figure 2 and Figure 3 The specific embodiments shown will be described in detail.

[0044] Figure 2 This is a schematic diagram of a compressed air and fuel cell co-operated system according to a specific embodiment of the present invention.

[0045] like Figure 2As shown, during off-peak hours, the electric motor drives the compressor through the energy storage component 200 to compress the outside air to the target pressure value. During this period, the compressor power can be adjusted through a proportional-integral control algorithm to complete energy storage. During peak hours, the fuel cell efficiency compensation algorithm is used to improve the energy replenishment efficiency of the fuel cell system, the electric motor is controlled to generate electricity through a grid load replenishment algorithm, and the pressure safety control algorithm is used to protect the pressure of the gas storage tank, thus balancing the grid load demand and the pressure safety of the gas storage tank.

[0046] Figure 3 This is a flowchart of a control method for a compressed air and fuel cell co-operated system according to a specific embodiment of the present invention.

[0047] like Figure 3 As shown, the control method for the compressed air and fuel cell coordinated system includes the following steps: In step S301, it is determined whether the current time information is in a period of off-peak electricity. If it is in a period of off-peak electricity, step S302 is executed; otherwise, step S306 is executed.

[0048] In step S302, the off-peak electricity storage algorithm is executed to determine the energy storage strategy and parameters. By dynamically adjusting the compression power of the motor, energy waste is avoided by preventing the gas storage tank from reaching its pressure limit in advance.

[0049] In step S303, the error between the actual energy storage time and the predicted energy storage time is calculated.

[0050] In step S304, the power of the motor is adjusted by a proportional-integral control algorithm based on the energy storage time error.

[0051] In step S305, the student model of the system is updated based on the current operating data.

[0052] In step S306, a peak-hour electricity pricing algorithm is executed to optimize power output and revenue. In step S307, the power generation efficiency of the fuel cell is monitored and obtained in real time.

[0053] In step S308, it is determined whether the efficiency of the fuel cell has decreased. If the efficiency of the fuel cell has not decreased, step S309 is executed; otherwise, step S314 is executed.

[0054] In step S309, the amount of air that needs to be replenished is calculated.

[0055] In step S310, the air supply to the fuel cell is increased according to the calculated replenishment amount.

[0056] In step S311, it is evaluated whether the gas replenishment operation has effectively restored the efficiency of the fuel cell. If the gas replenishment effect meets the standard, step S312 is executed; otherwise, step S313 is executed.

[0057] In step S312, the fuel cell supplies power normally and then proceeds to step S314.

[0058] In step S313, the fuel cell reduces its power output to supply electricity.

[0059] In step S314, the real-time load demand of the power grid is monitored and obtained.

[0060] In step S315, it is determined whether the grid load exceeds the limit. If the fuel cell power supply is insufficient, it is determined that the load exceeds the limit and step S316 is executed; otherwise, step S317 is executed.

[0061] In step S316, the motor starts generating electricity, and then proceeds to step S318.

[0062] In step S317, the motor remains in standby mode and then proceeds to step S318.

[0063] In step S318, the real-time pressure of the gas storage tank is monitored and obtained.

[0064] In step S319, it is determined whether the pressure of the gas storage tank is within the safe range. If the actual pressure of the gas storage tank is less than the minimum safe pressure threshold of the gas storage tank, it is determined that the pressure is unsafe and step S321 is executed; otherwise, step S320 is executed.

[0065] In step S320, the fuel cell is kept running, and then the process jumps to step S322.

[0066] In step S321, the fuel cell power is reduced, and the process jumps to step S322.

[0067] In step S322, it is determined whether the peak power period has ended. If it has not ended, step S307 is executed again. If the peak power period has ended, step S323 is executed.

[0068] Execute step S323 to complete the control of the compressed air and fuel cell collaborative system.

[0069] The compressed air and fuel cell co-operated system provided by this utility model consists of a drive component, an energy storage component, and a fuel cell system. One end of the drive component is connected to the power grid, and the other end is connected to the energy storage component. The drive component compresses air or supplies power to the power grid. The output end of the energy storage component is connected to the fuel cell system to provide oxygen and store energy during off-peak hours. The fuel cell system is connected to the power grid and supplies power to the power grid during peak hours. This system solves the problems of long system response delay and low energy efficiency caused by the inability to coordinate the control of the compressed air energy storage system and the fuel cell system in related technologies, and improves the system's energy efficiency and real-time control performance.

[0070] Furthermore, this utility model embodiment also proposes a distributed energy system, which includes... Figure 1 The compressed air and fuel cell co-operated system shown in the embodiment.

[0071] According to the distributed energy system provided by this utility model, the above-mentioned compressed air and fuel cell collaborative system solves the problem of long system response delay and low energy efficiency caused by the inability of compressed air energy storage system and fuel cell system to coordinate control in related technologies, thereby improving system energy efficiency and real-time control.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0074] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more N executable instructions for implementing custom logic functions or processes, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0075] It should be understood that the various parts of this utility model can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiments, the N steps or methods can be implemented using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0076] Those skilled in the art will understand that all or part of the steps of the methods in the above embodiments can be implemented by a program instructing related hardware. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

Claims

1. A compressed air and fuel cell co-operation system, characterized in that, include: Drive components, energy storage components, voltage regulation components, and fuel cell systems, among which, One end of the drive component is connected to the grid terminal, and the other end of the drive component is connected to the compression terminal of the energy storage component. During the off-peak electricity storage phase, the drive component drives the energy storage component to compress air through the compression terminal. During the peak electricity supply phase and when the fuel cell system is under-powered, the drive component supplies power to the grid terminal. The input terminal of the pressure regulating component is connected to the output terminal of the energy storage component, and the output terminal of the pressure regulating component is connected to the fuel cell system. The pressure regulating component regulates the oxygen supply of the fuel cell system. The fuel cell system is connected to the power grid, and during peak power supply periods, the fuel cell system supplies power to the power grid.

2. The compressed air and fuel cell co-operated system according to claim 1, characterized in that, The energy storage component includes: A compressed air energy storage system, the compressed air energy storage system including a compressor, and the other end of the drive component being connected to the compressor via the compression end.

3. The compressed air and fuel cell co-operated system according to claim 1 or 2, characterized in that, The energy storage component further includes: An air storage tank, one end of which is connected to the output end of the compressed air energy storage system, and the other end of which is connected to the input end of the pressure regulating component, is used to store compressed air.

4. The compressed air and fuel cell co-processing system according to claim 1, characterized in that, The pressure regulating component is an electric pressure regulating valve.

5. The compressed air and fuel cell co-operated system according to claim 1, characterized in that, Also includes: An inverter is provided, the input of which is connected to the output of the fuel cell system, and the output of which is connected to the power grid. The inverter is used to convert the direct current output by the fuel cell system into alternating current.

6. The compressed air and fuel cell co-processing system according to claim 5, characterized in that, The inverter is an AC-DC converter.

7. The compressed air and fuel cell co-operated system according to claim 1, characterized in that, Also includes: A data acquisition module for collecting data on the actual power generation efficiency of fuel cells, the current predicted efficiency, the real-time load demand of the power grid, and the real-time pressure of the gas storage tank. The display module is connected to the acquisition module and is used to display the actual power generation efficiency of the fuel cell, the current predicted efficiency, the real-time load demand of the power grid, and the real-time pressure of the gas storage tank.

8. The compressed air and fuel cell co-operated system according to claim 1, characterized in that, Also includes: A reminder component is used to provide a power reduction reminder when the fuel cell system is operating at reduced power.

9. The compressed air and fuel cell co-operated system according to claim 8, characterized in that, The reminder component includes: An acoustic reminder unit is provided to provide an acoustic power reduction reminder when the fuel cell system is operating at reduced power. And / or, an optical reminder unit, which provides an optical power reduction reminder when the fuel cell system is operating at reduced power.

10. A distributed energy system, characterized in that, include: The compressed air and fuel cell co-processing system as described in any one of claims 1-9.

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