Method and device for starting a compressed air energy storage compressor

Abstract

The present disclosure relates to the technical field of compressed energy storage, and particularly relates to a compressed air energy storage compressor starting method and device. A compressor-motor coupling model is established, the surge phenomenon of the compressor is considered, a surge line of mass flow and input power is constructed, a given stable constant is used as a standard for an anti-surge valve opening and closing strategy, the distance from the compressor operating condition to the surge line is used to judge the current operating state and take corresponding measures, and safe and efficient control of the compressor starting is realized. The model of the present disclosure is reasonably simplified, has high running speed, high accuracy and strong safety. Meanwhile, compared with the traditional compressed air energy storage system compressor starting strategy, the present disclosure has higher efficiency and effectively improves the cycle efficiency of the system.

Description

Technical Field

[0001] This disclosure relates to the field of compressed energy storage technology, and in particular to a method and apparatus for starting a compressed air energy storage compressor. Background Technology

[0002] New energy sources are continuously developing as an indispensable part of a green, low-carbon, and circular economic system. Faced with the high volatility and randomness of wind and solar power output, large-scale energy storage technology has been proposed and extensively studied. Compressed air energy storage, as one of the mainstream large-scale energy storage technologies, has advantages such as large capacity, long cycle time, and high efficiency. Simulation modeling of compressed air energy storage systems is an indispensable part of the design and evaluation process. Among these, compressor modeling and the startup process, as core components, have received widespread attention.

[0003] In existing technologies, there are two main methods for analyzing the compressor startup process. One method ignores the anti-surge valve and models only the compressor, motor, and valves and piping within the system. This modeling approach is relatively simple, time-efficient, and fast, suitable for preliminary analysis of compressed air energy storage systems. However, this method neglects compressor surge, which occurs when the compressor flow rate decreases to a certain level during startup, leading to abnormal operating vibrations. Surge can cause irreversible damage to the compressor and must be avoided at all costs; therefore, the simulation results obtained using this method still require verification and are not yet perfect. The second method considers the anti-surge valve fully open and precisely models all components in the entire compressed air energy storage system. This modeling method has high accuracy and is suitable for precise analysis of compressed air energy storage systems. However, since the compressed air energy storage system is described by a series of differential equations, the system is complex and difficult to solve, making it difficult to obtain an analytical solution in a short time. Furthermore, because the anti-surge valve remains open, although surge is avoided, the efficiency during compression is severely reduced, thus lowering the overall cycle efficiency of the compressed air energy storage system. There is an urgent need to simplify the model appropriately and propose a more efficient startup method.

[0004] In current compressed air energy storage systems, many multi-stage compression systems exist, where gas is compressed in multiple stages using multiple compressors. Each compressor stage is driven by a corresponding motor. Adjacent compressors are connected end-to-end by gas pipelines. For this compression system, the following reasonable assumptions are made: 1. The gas within the compressor volume is uniformly distributed, i.e., the lumped parameter method is used; 2. All compression processes are adiabatic. The adiabatic compression efficiency of the compressors is set to 0.8; 3. The force exerted by the compressor impeller on the air during dynamic operation is equal to that during steady-state operation; 4. The compressor's heat loss is ignored; 5. Since the compressor start-up process is transient, the heat exchanger is considered to be inactive during this time and is therefore ignored.

[0005] In summary, there is an urgent need for a starting method for compressed air energy storage compressors based on an anti-surge valve opening and closing strategy. Summary of the Invention

[0006] To address the aforementioned issues, this disclosure provides a method and apparatus for starting a compressed air energy storage compressor.

[0007] In a first aspect, a method for starting a compressed air energy storage compressor, the method comprising:

[0008] Obtain the compressor design parameters and motor design parameters of the compression system;

[0009] Based on the compressor design parameters and the motor design parameters, build a compressor-motor coupling model in Simulink;

[0010] Based on the compressor-motor coupling model, a surge line for mass flow rate and input power is constructed. The operating conditions within the surge line are considered as stable operating conditions, while the operating conditions outside the surge line are considered as unstable operating conditions where surge occurs.

[0011] Set initial values ​​for the state variables of the compressor-motor coupling model;

[0012] The distance between the compressor operating point and the surge line obtained from the compressor-motor coupling model simulation is shown below. With stability constant Adjust the anti-surge valve opening and closing until the compressor is fully started.

[0013] Furthermore, the compressor design parameters and motor design parameters of the compression system are obtained, including:

[0014] The compressor's rated mass flow rate is The rated speed of the compressor is The compressor's rated pressure ratio is The compressor's adiabatic efficiency is The volume of the compressor is The inlet cross-sectional area of ​​the compressor is The compressor's outlet cross-sectional area is The compression force of the electric motor is The gas density inside the compressor The speed of the outlet gas Temperature of the outlet gas As a state variable.

[0015] Furthermore, based on the compressor design parameters and the motor design parameters, a compressor-motor coupling model is built in Simulink, including:

[0016] Select the gas density inside the compressor The speed of the outlet gas Temperature of the outlet gas As the state variable of the compressor, the integral module in Simulink is used. Set up the compressor system.

[0017] Furthermore, based on the compressor-motor coupling model, a surge curve for mass flow rate versus input power is constructed, including:

[0018] Based on the semi-empirical formula for surge instability derived from stability analysis, a surge curve for mass flow rate and input power is constructed as follows:

[0019]

[0020] in and These are the surge and blockage volume flow coefficients, respectively, which are directly proportional to the volume flow rate and inversely proportional to the square of the impeller diameter and the rotational speed. The tip Mach number; and These are the ratios of surge and blockage volumetric flow coefficients at minimum and maximum speeds, respectively; B S and C S These are empirical parameters. The empirical values ​​are 1.25, 4.75, 0.225, and 0.835. Operating conditions within the surge line are considered stable conditions, while operating conditions outside the surge line are considered unstable conditions where surge occurs, thus avoiding the compressor operating in unstable conditions.

[0021] Furthermore, initial values ​​are set for the state variables of the compressor-motor coupling model, including:

[0022] The initial values ​​for the compressor's key dynamic parameters, namely density, velocity, and temperature, were set to 1.184 kg / m³. 3 0 m / s and 298.15 K;

[0023] In the Simulink integration module, configure and enable the integration module. Set the initial value and confirm.

[0024] Furthermore, the distance between the compressor's operating point and the surge line. The definition is as follows:

[0025]

[0026] x represents the distance from the running state point to the surge line, line_{surge} represents the surge line, dot_{currentstate} represents the current running point, and min{||||} represents the minimum distance from the point to the line.

[0027] Furthermore, the stability constant Determined using the following method:

[0028] Obtain the compressor's safe operation requirements and recommended parameter settings from the technical data and instruction manuals provided by the compressor manufacturer;

[0029] By analyzing the compressor's operating history and surge records, experiments and tests were conducted to determine the stability constant. ;

[0030] When the compressor starts up, the anti-surge valve closes. The distance between the compressor's operating point and the surge line... Greater than the stability constant At that time, the anti-surge valve remains closed; when the compressor's operating point is at a distance from the surge line... Less than the stability constant At this time, the anti-surge valve is opened for a period of time T. After time T, the comparison continues until the compressor reaches the rated operating state.

[0031] In a second aspect, a compressed air energy storage compressor starting device includes: a parameter acquisition unit, a model building unit, a surge line determination unit, a state variable initial setting unit, and a starting unit;

[0032] The parameter acquisition unit is used to obtain the compressor design parameters and motor design parameters of the compression system.

[0033] The model building unit is used to build a compressor-motor coupled model in Simulink based on the compressor design parameters and the motor design parameters.

[0034] The surge line determination unit is used to construct the surge line of mass flow rate and input power based on the compressor-motor coupling model. The operating conditions within the surge line are regarded as stable operating conditions, and the operating conditions outside the surge line are regarded as unstable operating conditions in which surge occurs.

[0035] The state variable initialization unit is used to set initial values ​​for the state variables of the compressor-motor coupling model.

[0036] The starting unit is used to determine the distance between the compressor operating state point and the surge line, obtained from the compressor-motor coupling model simulation. With stability constant Adjust the anti-surge valve opening and closing until the compressor is fully started.

[0037] Thirdly, an electronic device includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus;

[0038] Memory, which stores computer programs;

[0039] When the processor executes a computer program stored in the memory, it implements the above-described method for starting a compressed air energy storage compressor.

[0040] Fourthly, a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method for starting a compressed air energy storage compressor.

[0041] This disclosure has at least the following beneficial effects:

[0042] This disclosure addresses the modeling and startup problems of compression systems in compressed air energy storage systems. It provides a compressor-motor coupling model for modeling the compression system, along with detailed modeling steps and formulas. It also presents a compressor startup method for compressed air energy storage systems based on an anti-surge valve opening and closing strategy. The outstanding advantages of this method and device are: the model is reasonably simplified, it operates quickly, has high accuracy, and is highly safe. Furthermore, compared to traditional compressor startup strategies for compressed air energy storage systems, it is more efficient, effectively improving the system's cycle efficiency.

[0043] Other features and advantages of this disclosure will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the disclosure. The objects and other advantages of this disclosure may be realized and obtained by means of the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0044] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0045] Figure 1 This is a schematic diagram of the startup method flow according to an embodiment of the present disclosure;

[0046] Figure 2 This is a schematic diagram of the compressed portion of an embodiment of this disclosure;

[0047] Figure 3 This is a schematic diagram of the compressor-motor coupling model according to an embodiment of this disclosure;

[0048] Figure 4 This is a schematic diagram of the starting device structure according to an embodiment of the present disclosure;

[0049] Figure 5 This is a schematic diagram of the electronic device structure according to an embodiment of the present disclosure. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0051] like Figure 1 As shown, a method for starting a compressed air energy storage compressor includes:

[0052] S101, obtain the compressor design parameters and motor design parameters of the compression system;

[0053] S102. Based on the compressor design parameters and motor design parameters, build a compressor-motor coupling model in Simulink.

[0054] S103, based on the compressor-motor coupling model, constructs a surge line for mass flow rate and input power. Operating conditions within the surge line are considered as stable operating conditions, while operating conditions outside the surge line are considered as unstable operating conditions where surge occurs.

[0055] S104, set initial values ​​for the state variables of the compressor-motor coupling model;

[0056] S105, Distance from the surge line of the compressor operating state point obtained from the compressor-motor coupling model simulation. With stability constant Adjust the anti-surge valve opening and closing until the compressor is fully started.

[0057] The specific implementation details are as follows:

[0058] Obtaining compression system information:

[0059] First, obtain the compressor design parameters and motor design parameters for the compressor system. Since the compression system we are dealing with is a multi-stage compression system, it contains two or more compressors and motors. Here, we use a single-stage compressor and motor as an example; the same method can be applied to multi-stage compressors and motors.

[0060] The obtained information should be recorded in the following format: the compressor's rated mass flow rate is... The rated speed of the compressor is The compressor's rated pressure ratio is The compressor's adiabatic efficiency is The volume of the compressor is The inlet cross-sectional area of ​​the compressor is The compressor's outlet cross-sectional area is The compression force of the electric motor is Note that the above are all design parameters, that is, parameters that are fixed after the compressor leaves the factory, as opposed to variables.

[0061] A schematic diagram of the compression section is shown below. Figure 2 As shown, the gas density inside the compressor is selected. The speed of the outlet gas Temperature of the outlet gas As state variables, other variables can be expressed by the aforementioned state variables. Specifically, the following relationships exist: the mass conservation equation, momentum conservation equation, and energy conservation equation for the air inside the compressor:

[0062]

[0063]

[0064]

[0065] in Represents the mass flow rate of the compressor. Represents pressure. It is a time variable. It is the specific enthalpy of a gas. It is the work done by the electric motor. It refers to specific heat capacity, indicated by the subscript. Indicates the entrance, indicated by the subscript. Indicates the outlet. The compressor's rated mass flow rate is... The rated speed of the compressor is The compressor's rated pressure ratio is The compressor's adiabatic efficiency is The volume of the compressor is The inlet cross-sectional area of ​​the compressor is The compressor's outlet cross-sectional area is The compression force of the electric motor is .in Given by the following formula:

[0066]

[0067]

[0068]

[0069] The superscript · represents the variable after conversion. Represents pressure ratio, Represents adiabatic compression efficiency. Represents the reduced mass flow rate. Represents the equivalent rotational speed. These are intermediate parameters, where Take 0.8, and The value is 1.8. All calculation formulas are as above, and the information acquisition of the compression system is now complete.

[0070] Establish a compressor-motor coupling model:

[0071] After obtaining all the information about the compression system, a compressor-motor coupling model is built in Simulink. The gas density inside the compressor is selected. The speed of the outlet gas Temperature of the outlet gas As the state variable of the compressor, the built-in integration module in Simulink is used. The compressor system is constructed using other operators. Specifically, this involves integrating the first-order differential of the state variable (i.e., using an integration module). The state variables are obtained, and then the constraint relationships are derived using the mass conservation formula, momentum conservation formula, and energy conservation formula. The specific formulas are as follows:

[0072]

[0073] The meanings of each quantity have already been given in the first step of obtaining information about the compression system, and will not be repeated here.

[0074] A schematic diagram of the compressor-motor coupling model is shown below. Figure 3 As shown. For the electric motor model, the current speed is obtained from the compressor module. A PID module is used for control, outputting the current power. At this point, the connection between the compressor and the electric motor is complete.

[0075] Modeling of the anti-surge valve and construction of the surge domain:

[0076] The mechanism of surge is quite complex and difficult to model precisely. In engineering, semi-empirical models are typically used for analysis. The following is a semi-empirical formula for the surge instability point derived from stability analysis:

[0077]

[0078] in and These are the surge and blockage volume flow coefficients, respectively, which are directly proportional to the volume flow rate and inversely proportional to the square of the impeller diameter and the rotational speed. The tip Mach number; and These are the ratios of surge and blockage volumetric flow coefficients at minimum and maximum speeds, respectively; B S and C S These are empirical parameters. Empirical values ​​were taken as 1.25, 4.75, 0.225, and 0.835. Based on the above formula, a surge curve was constructed for mass flow rate and input power. Operating conditions within the surge curve were considered stable conditions, while operating conditions outside the surge curve were considered unstable conditions where surge occurred, and the compressor should be avoided from operating under unstable conditions.

[0079] Startup process parameter settings:

[0080] The simulation of the model begins. At this point, initial values ​​need to be given to the state variables. Here, the initial values ​​for the key dynamic parameters of the compressor are given: density, velocity, and temperature are set to 1.184 kg / m³. 3 0 m / s and 298.15 K. These parameters can all be set in the integration module in Simulink. Open the integration module. Set the initial values ​​as described above and confirm. The startup process parameter settings are now complete.

[0081] Compressor start-up method based on anti-surge valve opening and closing strategy:

[0082] After completing all the above operations, perform the integration and operation. Note that a stability constant needs to be provided at this point. Its working principle is as follows: when the compressor starts, the anti-surge valve closes; when the compressor's operating point is far from the surge line... Greater than the stability constant At this point, the compressor is considered to be operating safely and will continue to operate safely for some time, therefore the anti-surge valve remains closed; the distance between the compressor's operating point and the surge line... Less than the stability constant If the compressor is considered to be operating safely but there is a risk of surge in the coming period, the anti-surge valve is opened for one minute. After one minute, the assessment is repeated, and the opening and closing strategy of the anti-surge valve is updated until the rated operating state is reached. The distance between the compressor's operating state point and the surge line is specified. The definition is as follows:

[0083]

[0084] Determine the stability constant The method is as follows: First, refer to the technical data and instruction manuals provided by the compressor manufacturer to understand the compressor's safe operation requirements and recommended parameter settings. Analyze the compressor's operating history and surge records, conduct experiments and tests, and adjust and verify the accuracy of the stability constant using actual operating data. During the experiment, try different stability constants, observe the compressor's operating status and safety, and find the optimal settings. Considering safety and reliability requirements, and combining them with actual conditions, determine a reasonable stability constant. During operation, periodically evaluate and adjust the stability constant to ensure the compressor's safe and stable operation.

[0085] This disclosure considers the impact of surge on compressors, ensuring high safety and reliability. Based on reasonable assumptions, the precise model is simplified, reducing computation time and complexity, resulting in high computational efficiency and accuracy. A starting method for compressed air energy storage compressors based on an anti-surge valve opening and closing strategy is proposed, increasing the flexibility of the anti-surge valve's action and effectively avoiding surge while improving the operating efficiency of the compressed air energy storage system.

[0086] like Figure 4 As shown, a compressed air energy storage compressor starting device includes: a parameter acquisition unit 401, a model building unit 402, a surge line determination unit 403, a state variable initial setting unit 404, and a starting unit 405;

[0087] The parameter acquisition unit 401 is used to obtain the compressor design parameters and motor design parameters of the compression system.

[0088] Model building unit 402 is used to build a compressor-motor coupled model in Simulink based on compressor design parameters and motor design parameters.

[0089] The surge line determination unit 403 is used to construct a surge line for mass flow rate and input power based on the compressor-motor coupling model. The operating conditions within the surge line are regarded as stable operating conditions, and the operating conditions outside the surge line are regarded as unstable operating conditions in which surge occurs.

[0090] The state variable initial setting unit 404 is used to set initial values ​​for the state variables of the compressor-motor coupling model;

[0091] The starting unit 405 is used to determine the distance between the compressor operating state point and the surge line obtained from the compressor-motor coupling model simulation. With stability constant Adjust the anti-surge valve opening and closing until the compressor is fully started.

[0092] like Figure 5 As shown, this disclosure provides an electronic device, including a processor 501, a communication interface 502, a memory 503, and a communication bus 504, wherein the processor 501, the communication interface 502, and the memory 503 communicate with each other through the communication bus 504.

[0093] Memory 503 stores computer programs;

[0094] The processor 501 implements the above method when executing a computer program stored in the memory 503.

[0095] This disclosure provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the above-described method.

[0096] The computer-readable storage medium may be included in the device / apparatus described in the above embodiments; or it may exist independently and not assembled into the device / apparatus. The computer-readable storage medium carries one or more programs that, when executed, implement the method according to the embodiments of this disclosure.

[0097] According to embodiments of this disclosure, the computer-readable storage medium can be a non-volatile computer-readable storage medium, such as including, but not limited to: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof. In this disclosure, the computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0098] Although the present disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A method for starting a compressed air energy storage compressor, characterized in that, The method includes: Obtain the compressor design parameters and motor design parameters of the compression system; Based on the compressor design parameters and the motor design parameters, build a compressor-motor coupling model in Simulink; Based on the compressor-motor coupling model, a surge line for mass flow rate and input power is constructed. The operating conditions within the surge line are considered as stable operating conditions, while the operating conditions outside the surge line are considered as unstable operating conditions where surge occurs. Set initial values ​​for the state variables of the compressor-motor coupling model; The distance between the compressor operating point and the surge line obtained from the compressor-motor coupling model simulation is shown below. With stability constant Adjust the anti-surge valve opening and closing until the compressor is fully started; Stability constant Determined using the following method: Obtain the compressor's safe operation requirements and recommended parameter settings from the technical data and instruction manuals provided by the compressor manufacturer; By analyzing the compressor's operating history and surge records, experiments and tests were conducted to determine the stability constant. ; When the compressor starts up, the anti-surge valve closes. The distance between the compressor's operating point and the surge line... Greater than the stability constant At that time, the anti-surge valve remains closed; when the compressor's operating point is at a distance from the surge line... Less than the stability constant At this time, the anti-surge valve is opened for a period of time T. After time T, the comparison continues until the compressor reaches the rated operating state.

2. The method for starting a compressed air energy storage compressor according to claim 1, characterized in that, Obtain the compressor design parameters and motor design parameters of the compression system, including: The compressor's rated mass flow rate is The rated speed of the compressor is The compressor's rated pressure ratio is The compressor's adiabatic efficiency is The volume of the compressor is The inlet cross-sectional area of ​​the compressor is The compressor's outlet cross-sectional area is The compression force of the electric motor is The gas density inside the compressor The speed of the outlet gas Temperature of the outlet gas As a state variable.

3. The method for starting a compressed air energy storage compressor according to claim 1, characterized in that, Based on the compressor design parameters and motor design parameters, a compressor-motor coupling model is built in Simulink, including: Select the gas density inside the compressor The speed of the outlet gas Temperature of the outlet gas As the state variable of the compressor, the integral module in Simulink is used. Set up the compressor system.

4. The method for starting a compressed air energy storage compressor according to claim 1, characterized in that, Based on the compressor-motor coupling model, a surge curve for mass flow rate and input power is constructed, including: Based on the semi-empirical formula for the surge instability point derived from stability analysis, the surge curve for mass flow rate and input power is constructed as follows: in and These are the surge and blockage volume flow coefficients, respectively, which are directly proportional to the volume flow rate and inversely proportional to the square of the impeller diameter and the rotational speed. The tip Mach number; and These are the ratios of surge and blockage volumetric flow coefficients at minimum and maximum speeds, respectively; B S and C S These are empirical parameters. The empirical values ​​are 1.25, 4.75, 0.225, and 0.

835. Operating conditions within the surge line are considered stable conditions, while operating conditions outside the surge line are considered unstable conditions where surge occurs, thus avoiding the compressor operating in unstable conditions.

5. The method for starting a compressed air energy storage compressor according to claim 1, characterized in that, Initialize the state variables of the compressor-motor coupling model, including: The initial values ​​for the compressor's key dynamic parameters, namely density, velocity, and temperature, were set to 1.184 kg / m³. 3 0 m / s and 298.15 K; In the Simulink integration module, configure and enable the integration module. Set the initial value and confirm.

6. The method for starting a compressed air energy storage compressor according to claim 1, characterized in that, Distance between the compressor operating point and the surge line The definition is as follows: x represents the distance from the running state point to the surge line, line_{surge} represents the surge line, dot_{currentstate} represents the current running point, and min{||||} represents the minimum distance from the point to the line.

7. A starting device for a compressed air energy storage compressor, characterized in that, include: The system includes a parameter acquisition unit, a model building unit, a surge line determination unit, a state variable initial setting unit, and a startup unit. The parameter acquisition unit is used to obtain the compressor design parameters and motor design parameters of the compression system. The model building unit is used to build a compressor-motor coupled model in Simulink based on the compressor design parameters and the motor design parameters. The surge line determination unit is used to construct the surge line of mass flow rate and input power based on the compressor-motor coupling model. The operating conditions within the surge line are regarded as stable operating conditions, and the operating conditions outside the surge line are regarded as unstable operating conditions in which surge occurs. The state variable initialization unit is used to set initial values ​​for the state variables of the compressor-motor coupling model. The distance between the compressor operating point and the surge line obtained from the compressor-motor coupling model simulation is shown below. With stability constant Adjust the anti-surge valve opening and closing until the compressor is fully started; Stability constant Determined using the following method: Obtain the compressor's safe operation requirements and recommended parameter settings from the technical data and instruction manuals provided by the compressor manufacturer; By analyzing the compressor's operating history and surge records, experiments and tests were conducted to determine the stability constant. ; When the compressor starts up, the anti-surge valve closes. The distance between the compressor's operating point and the surge line... Greater than the stability constant At that time, the anti-surge valve remains closed; when the compressor's operating point is at a distance from the surge line... Less than the stability constant At this time, the anti-surge valve is opened for a period of time T. After time T, the comparison continues until the compressor reaches the rated operating state.

8. An electronic device, characterized in that, It includes a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other through the communication bus; Memory, which stores computer programs; A processor, when executing a computer program stored in a memory, implements a method for starting a compressed air energy storage compressor as described in any one of claims 1-6.

9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements a method for starting a compressed air energy storage compressor as described in any one of claims 1-6.

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