Temperature and flow coordination control method, device and equipment for array heat exchanger

Abstract

This application relates to the field of heat exchanger technology, and particularly to a method, apparatus, and device for coordinated temperature and flow control of an array heat exchanger. The method includes: acquiring a given power command for the array heat exchanger; determining the sensitivity coefficient curve of at least one target control variable under the power command; fitting the sensitivity coefficient curve of each target control variable to determine the ratio of the inlet air temperature to the inlet air mass flow rate of the array heat exchanger; and performing coordinated temperature and flow control of the array heat exchanger based on the ratio. This solves the problems of poor heat exchanger control effect, low heat exchange efficiency, and insufficient flexibility in related technologies.

Description

Technical Field

[0001] This application relates to the field of heat exchanger technology, and in particular to a method, apparatus and equipment for coordinated temperature and flow control of an array heat exchanger. Background Technology

[0002] Advanced adiabatic compressed air energy storage, as a type of compressed air energy storage system, has attracted widespread attention in the context of dual-carbon development due to its zero-carbon emission characteristics. It mainly consists of a compression side and a turbine side. The compression side primarily comprises a compressor and a heat exchanger, while the turbine side mainly consists of a turbine and a heat exchanger. As the core component connecting the entire system, the performance of the heat exchanger directly affects the system efficiency. Theoretically, the cycle efficiency of this system can exceed 70%, but in reality, due to various unpredictable factors, the current system efficiency has not yet reached this standard.

[0003] The primary function of a heat exchanger is to facilitate the exchange of heat between hot and cold fluids. This process involves significant heat loss, resulting in low overall system efficiency. Therefore, in-depth research and optimization of heat exchangers are crucial for improving system efficiency. Currently, shell-and-tube counter-flow heat exchangers are the mainstream choice, as their high-temperature and high-pressure resistance ensures stable system operation. However, their heat exchange efficiency still needs improvement to meet the demands of enhanced system performance. Summary of the Invention

[0004] This application provides a method, apparatus, and equipment for coordinated temperature and flow control of an array heat exchanger, in order to solve problems such as poor heat exchanger control effect, low heat exchange efficiency, and insufficient flexibility in related technologies.

[0005] The first aspect of this application provides a method for coordinated temperature and flow control of an array heat exchanger, comprising the following steps: obtaining a given power command for the array heat exchanger; determining a sensitivity coefficient curve of at least one target control quantity under the power command; fitting the sensitivity coefficient curve of each target control quantity to determine the ratio of the inlet air temperature to the inlet air mass flow rate of the array heat exchanger; and performing coordinated temperature and flow control of the array heat exchanger based on the ratio.

[0006] Optionally, determining the sensitivity coefficient curve of at least one target control quantity under the power command includes: obtaining a correspondence table between the power command and the sensitivity coefficient curve; and determining the sensitivity coefficient curve of at least one target control quantity under the power command based on the correspondence table.

[0007] Optionally, the at least one target control quantity includes at least one of hot fluid temperature, cold fluid temperature, hot fluid linear density, and cold fluid linear density.

[0008] Optionally, before obtaining the correspondence table between power commands and sensitivity coefficient curves, the process includes: obtaining the physical characteristic equations of the heat exchangers in the array heat exchanger; establishing a set of physical characteristic equations for the array heat exchanger based on the physical characteristic equations of the heat exchangers; performing sensitivity analysis on the at least one target control variable under multiple power commands, generating sensitivity coefficient curves based on the sensitivity analysis data, wherein the ratio of inlet air temperature to inlet air mass flow rate is determined before the sensitivity analysis; and generating a correspondence table based on the multiple power commands and the sensitivity coefficient curves of at least one target control variable under each power command.

[0009] Optionally, the physical property equation is:

[0010]

[0011] Among them, T h T represents the temperature of the hot fluid. c For the temperature of the cold fluid, m h m is the thermal fluid linear density. c c is the linear density of the cold fluid. ph For the isobaric specific heat capacity of the heat fluid, c pc For the isobaric specific heat capacity of a cold fluid, For the mass flow rate of the thermal fluid, U is the mass flow rate of the cold fluid, U is the heat transfer coefficient, and A is the heat transfer area.

[0012] Optionally, before performing coordinated temperature and flow control on the array heat exchanger according to the ratio, the method further includes: obtaining the initial equivalent power of the array heat exchanger; calculating the power difference between the given power corresponding to the given power command and the initial equivalent power; if the power difference is greater than a preset value, then performing coordinated temperature and flow control on the array heat exchanger according to the ratio.

[0013] A second aspect of this application provides a temperature and flow rate coordinated control device for an array heat exchanger, comprising: an acquisition module for acquiring a given power command for the array heat exchanger; a determination module for determining a sensitivity coefficient curve of at least one target control quantity under the power command; a fitting module for fitting the sensitivity coefficient curve of each target control quantity to determine the ratio of the inlet air temperature to the inlet air mass flow rate of the array heat exchanger; and a control module for performing coordinated temperature and flow rate control on the array heat exchanger according to the ratio.

[0014] A third aspect of this application provides a control device for a compressed air energy storage system, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the array heat exchanger temperature and flow coordinated control method as described above.

[0015] A fourth aspect of this application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the array heat exchanger temperature and flow coordinated control method as described above.

[0016] A fifth aspect of this application provides a computer program product, including a computer program or instructions, which, when executed, are used to implement the array heat exchanger temperature and flow coordinated control method as described above.

[0017] Therefore, this application has at least the following beneficial effects:

[0018] This application's embodiments construct the physical characteristic equations of an array-type heat exchanger and perform sensitivity analysis on temperature control and flow control under specific operating conditions to optimize the weighting ratio of the two control methods. Temperature control relies on a zero-carbon emission heat source to precisely regulate the inlet air temperature of the heat exchanger, while flow control adjusts the opening of the throttling valve before the heat exchanger to control the mass flow rate of air flowing into the heat exchanger. Under any given power command, precise control of the heat exchanger is achieved based on the sensitivity analysis results, significantly improving the speed of power tracking and effectively reducing energy losses caused by parameter adjustments. This solves the technical problems of poor heat exchanger control, low heat exchange efficiency, and insufficient flexibility in related technologies.

[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein:

[0021] Figure 1 This is a flowchart of a method for coordinated temperature and flow control of an array heat exchanger according to an embodiment of this application;

[0022] Figure 2 This is a schematic diagram of a method for coordinated temperature and flow control of an array heat exchanger according to an embodiment of this application;

[0023] Figure 3 This is a flowchart of a method for coordinated temperature and flow control of an array heat exchanger according to an embodiment of this application;

[0024] Figure 4 Example diagram of an array-type heat exchanger temperature and flow rate coordinated control device according to an embodiment of this application;

[0025] Figure 5This is a schematic diagram of the control device for a compressed air energy storage system provided according to an embodiment of this application. Detailed Implementation

[0026] The embodiments of this application 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 application, and should not be construed as limiting this application.

[0027] The following description, with reference to the accompanying drawings, outlines a method, apparatus, and device for coordinated temperature and flow control of an array heat exchanger according to embodiments of this application. Addressing the problem mentioned in the background art where low heat exchange efficiency hinders the improvement of energy storage system efficiency, this application provides a method for coordinated temperature and flow control of an array heat exchanger. In this method, the physical characteristic equations of the array heat exchanger are constructed, and sensitivity analysis is performed on temperature control and flow control under specific operating conditions to optimize the weighting ratio of the two control methods. Temperature control relies on a zero-carbon emission heat source to precisely regulate the inlet air temperature of the heat exchanger, while flow control controls the mass flow rate of air flowing into the heat exchanger by adjusting the opening of the throttling valve before the heat exchanger. Under any given power command, precise control of the heat exchanger is achieved based on the sensitivity analysis results, significantly improving the power tracking speed and effectively reducing energy losses caused by parameter adjustments. This solves the problems of poor heat exchanger control, low heat exchange efficiency, and insufficient flexibility in related technologies.

[0028] Specifically, Figure 1 This is a schematic flowchart illustrating a method for coordinated temperature and flow control of an array heat exchanger, as provided in an embodiment of this application.

[0029] like Figure 1 As shown, the method for coordinated temperature and flow control of the array heat exchanger includes the following steps:

[0030] In step S101, the given power command for the array heat exchanger is obtained.

[0031] The given power command can be the desired heat exchange efficiency or heat output.

[0032] It is understood that the embodiments of this application can obtain the given power command of the array heat exchanger, providing a clear control target for subsequent sensitivity analysis, determination of control quantity ratio, and coordinated control of temperature and flow.

[0033] In step S102, the sensitivity coefficient curve of at least one target control quantity under the power command is determined.

[0034] The target control quantity may include at least one of the hot fluid temperature, cold fluid temperature, hot fluid linear density, and cold fluid linear density.

[0035] It is understood that by determining the sensitivity coefficient curve of at least one target control quantity under the power command, the embodiments of this application can clarify the degree of influence of each control variable on the performance, thereby optimizing the control strategy, improving the heat exchange efficiency and power tracking speed of the array heat exchanger, while reducing energy loss and enhancing adaptability and flexibility under different operating conditions.

[0036] In this embodiment of the application, determining the sensitivity coefficient curve of at least one target control quantity under a power command includes: obtaining a correspondence table between power commands and sensitivity coefficient curves; and determining the sensitivity coefficient curve of at least one target control quantity under a power command based on the correspondence table.

[0037] The correspondence table can include the correspondence between different power commands and their corresponding sensitivity coefficients. Each row may represent a specific power command, and each column may represent the sensitivity coefficient of a target control quantity.

[0038] It is understood that, by obtaining a correspondence table between power commands and sensitivity coefficient curves, the embodiments of this application can quickly locate and determine the sensitivity coefficient curve of at least one target control variable under a specific power command. This correspondence table provides a convenient way to understand the impact of control variables on system performance under different power demands, thus providing an important basis for optimizing control strategies and improving system performance. Through sensitivity coefficient curve analysis based on the correspondence table, precise control of the array heat exchanger can be achieved to meet the high-efficiency heat exchange requirements under different power commands.

[0039] In this embodiment of the application, before obtaining the correspondence table between power commands and sensitivity coefficient curves, the process includes: obtaining the physical characteristic equations of the heat exchanger in the array heat exchanger; establishing a set of physical characteristic equations for the array heat exchanger based on the physical characteristic equations of the heat exchanger; performing sensitivity analysis on at least one target control quantity under multiple power commands, and generating sensitivity coefficient curves based on the sensitivity analysis data, wherein the ratio of inlet air temperature to inlet air mass flow rate is determined before the sensitivity analysis; and generating a correspondence table based on multiple power commands and the sensitivity coefficient curves of at least one target control quantity under each power command.

[0040] Sensitivity analysis can be used to assess how sensitive the performance of an array heat exchanger is to changes in different control variables.

[0041] Understandably, this application embodiment obtains the physical characteristic equations of the array heat exchanger and establishes its equation set, then performs sensitivity analysis on key target control variables under multiple power commands, generating sensitivity coefficient curves. Before the sensitivity analysis, the ratio of inlet air temperature to air mass flow rate is predetermined to optimize the control strategy. Finally, based on the analysis results, a correspondence table between power commands and the sensitivity coefficients of target control variables is generated, providing effective data support and control strategy guidance for improving system heat exchange efficiency and performance optimization.

[0042] In this embodiment of the application, the physical property equation is:

[0043]

[0044] Among them, T h T represents the temperature of the hot fluid. c For the temperature of the cold fluid, m h m is the thermal fluid linear density. c c is the linear density of the cold fluid. ph For the isobaric specific heat capacity of the heat fluid, c pc For the isobaric specific heat capacity of a cold fluid, For the mass flow rate of the thermal fluid, U is the mass flow rate of the cold fluid, U is the heat transfer coefficient, and A is the heat transfer area.

[0045] Specifically, for a counter-current heat exchanger, its individual heat transfer equation is as follows:

[0046]

[0047] Among them, T h T represents the temperature of the hot fluid. c For the temperature of the cold fluid, m h m is the thermal fluid linear density. c c is the linear density of the cold fluid. ph For the isobaric specific heat capacity of the heat fluid, c pc For the isobaric specific heat capacity of a cold fluid, For the mass flow rate of the thermal fluid, U is the mass flow rate of the cold fluid, U is the heat transfer coefficient, and A is the heat transfer area.

[0048] For array heat exchangers, the physical characteristic equations for all heat exchangers are as shown in the formulas above. The only difference is that the fluids connected to two heat exchangers must satisfy the condition that the outlet temperature and mass flow rate of the fluid in one heat exchanger are equal to the inlet temperature and mass flow rate of the fluid in the other heat exchanger. Therefore, the physical characteristic equations for array heat exchangers can be established using the formulas above.

[0049] After establishing the system of equations, start controlling the variable T. h Tc , Sensitivity analysis is performed. First, an operating condition for an array heat exchanger is specified. Then, three control variables are fixed, and a fourth control variable is varied from its lower limit to its upper limit. The change in the equivalent output power of the heat exchanger is observed. The above analysis is performed on the four control variables sequentially. Finally, the rate of influence of the four control variables on the equivalent power at the specified power can be obtained. Sensitivity coefficients for this operating condition are assigned to the four control variables according to the proportion of their rate of influence.

[0050] The experiment was then repeated under different operating conditions until all operating conditions had been simulated. At this point, the sensitivity coefficients of each control variable under different operating conditions could be obtained. Using the scatter plot information obtained above, the sensitivity coefficient curves of each control variable under different power commands could be fitted.

[0051] In step S103, the sensitivity coefficient curve of each target control variable is fitted to determine the ratio of the inlet air temperature to the inlet air mass flow rate of the array heat exchanger.

[0052] It is understood that the embodiments of this application effectively determine the optimal ratio of inlet air temperature to inlet air mass flow rate of the array heat exchanger by fitting the sensitivity coefficient curve of each target control variable. By quantitatively analyzing the impact of different control variables on system performance, a scientific basis is provided for optimizing the control strategy. By precisely controlling the ratio of inlet air temperature to air mass flow rate, the heat exchange efficiency of the array heat exchanger can be significantly improved, ensuring that the system achieves optimal performance under different operating conditions.

[0053] In step S104, the array heat exchanger is subjected to coordinated temperature and flow control according to the proportion.

[0054] It is understood that the embodiments of this application determine the optimal temperature and flow rate ratio of the array heat exchanger by fitting the sensitivity coefficient curve, thereby achieving coordinated control of temperature and flow rate, optimizing heat exchange efficiency, and contributing to energy conservation and emission reduction.

[0055] In this embodiment of the application, before performing coordinated temperature and flow control on the array heat exchanger according to the proportion, the method further includes: obtaining the initial equivalent power of the array heat exchanger; calculating the power difference between the given power corresponding to the given power command and the initial equivalent power; if the power difference is greater than a preset value, then performing coordinated temperature and flow control on the array heat exchanger according to the proportion.

[0056] The initial equivalent power can be the heat exchange power that can be achieved under initial setting conditions, and the preset value can be a pre-set threshold.

[0057] It is understood that the embodiments of this application achieve accurate assessment of system power demand by obtaining the initial equivalent power of the array heat exchanger and calculating the power difference between the given power command and the initial equivalent power. When the power difference exceeds a preset value, a coordinated control strategy for temperature and flow can be automatically triggered to ensure that the array heat exchanger can respond quickly and accurately to power change demands, improve response speed and accuracy, and ensure that the equipment can operate stably under different operating conditions and achieve optimal heat exchange efficiency.

[0058] Specifically, such as Figure 2 As shown, firstly, a power command is given, and the heat exchanger outputs an initial equivalent power under given initial values, which is then compared with the output. The comparison data is then transmitted to the stability control system. This system mainly defines the approximate control range of the four control variables and selects a possible value of the sensitivity coefficient curve within this range. Subsequently, the values ​​of the four control variables corresponding to the sensitivity coefficient curves are input to a special control system. In this control system, diverse designs can be implemented according to the desired objectives. For example, if the goal is to improve the system's heat exchange efficiency, an optimal control algorithm can be used. The heat exchanger's energy loss is used as the objective function of the optimal control algorithm, and the corresponding calculations are performed to obtain the appropriate control variables, which are then fed back to the array heat exchanger system to achieve closed-loop control.

[0059] The temperature and flow rate coordinated control method for array heat exchangers proposed in this application constructs the physical characteristic equations of the array heat exchanger and performs sensitivity analysis on temperature control and flow rate control under specific operating conditions to optimize the weight ratio of the two control methods. Temperature control relies on a zero-carbon emission heat source to precisely regulate the inlet air temperature of the heat exchanger, while flow rate control adjusts the opening of the throttling valve before the heat exchanger to control the mass flow rate of air flowing into the heat exchanger. Under any given power command, precise control of the heat exchanger is achieved based on the sensitivity analysis results, significantly improving the power tracking speed and effectively reducing energy losses caused by parameter adjustments. This solves the problems of poor heat exchanger control, low heat exchange efficiency, and insufficient flexibility in related technologies.

[0060] The following will combine Figure 3 The method for coordinated temperature and flow control of array heat exchangers is described in detail below:

[0061] Step 1: Establish the physical characteristic equations of the array heat exchanger;

[0062] Step 2: Perform sensitivity analysis on the temperature control and flow control of the heat exchanger under all operating conditions;

[0063] Step 3: Determine the ratio of heat exchanger temperature control to flow control feedback input under each operating condition through curve fitting;

[0064] Step 4: Establish a feedback control system for the array heat exchanger;

[0065] Step 5: Control the inlet air temperature and inlet air mass flow rate of the heat exchanger system under any command.

[0066] In summary, this application embodiment performs sensitivity analysis on the two control parameters of the heat exchanger—inlet air temperature and inlet air mass flow rate—under all operating conditions. By determining the proportion of these two parameters under various possible operating conditions before control, the system avoids spending too much time on parameter calculations during control. Instead, it quickly adjusts its parameters upon receiving a power command. By controlling both variables simultaneously, the heat exchanger can quickly reach the parameters required by the power command. Furthermore, through some special control methods, energy loss can be reduced while rapidly tracking the command.

[0067] Next, referring to the accompanying drawings, a temperature and flow rate coordinated control device for an array heat exchanger according to an embodiment of this application is described.

[0068] Figure 4 This is a block diagram of an array-type heat exchanger temperature and flow coordinated control device according to an embodiment of this application.

[0069] like Figure 4 As shown, the array heat exchanger temperature and flow coordinated control device 10 includes: an acquisition module 100, a determination module 200, a fitting module 300, and a control module 400.

[0070] The acquisition module 100 is used to acquire the given power command of the array heat exchanger; the determination module 200 is used to determine the sensitivity coefficient curve of at least one target control quantity under the power command; the fitting module 300 is used to fit the sensitivity coefficient curve of each target control quantity to determine the ratio of the inlet air temperature to the inlet air mass flow rate of the array heat exchanger; and the control module 400 is used to perform coordinated temperature and flow control of the array heat exchanger according to the ratio.

[0071] It should be noted that the foregoing explanation of the embodiment of the coordinated temperature and flow control method for array heat exchangers also applies to the coordinated temperature and flow control device for array heat exchangers in this embodiment, and will not be repeated here.

[0072] The array-type heat exchanger temperature and flow coordinated control device proposed in this application constructs the physical characteristic equations of the array-type heat exchanger and performs sensitivity analysis on temperature control and flow control under specific operating conditions to optimize the weight ratio of the two control methods. Temperature control relies on a zero-carbon emission heat source to precisely regulate the inlet air temperature of the heat exchanger, while flow control adjusts the opening of the throttling valve before the heat exchanger to control the mass flow rate of air flowing into the heat exchanger. Under any given power command, precise control of the heat exchanger is achieved based on the sensitivity analysis results, significantly improving the power tracking speed and effectively reducing energy loss caused by parameter adjustments. This solves the problems of poor heat exchanger control, low heat exchange efficiency, and insufficient flexibility in related technologies.

[0073] Figure 5 A schematic diagram of the structure of the control device for the compressed air energy storage system provided in this application embodiment. The control device for the compressed air energy storage system may include:

[0074] The memory 501, the processor 502, and the computer program stored on the memory 501 and capable of running on the processor 502.

[0075] When the processor 502 executes the program, it implements the array heat exchanger temperature and flow coordinated control method provided in the above embodiments.

[0076] Furthermore, the control equipment for the compressed air energy storage system also includes:

[0077] Communication interface 503 is used for communication between memory 501 and processor 502.

[0078] The memory 501 is used to store computer programs that can run on the processor 502.

[0079] The memory 501 may include high-speed RAM (Random Access Memory) memory, and may also include non-volatile memory, such as at least one disk storage.

[0080] If the memory 501, processor 502, and communication interface 503 are implemented independently, then the communication interface 503, memory 501, and processor 502 can be interconnected via a bus to complete communication between them. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 5 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0081] Optionally, in a specific implementation, if the memory 501, processor 502, and communication interface 503 are integrated on a single chip, then the memory 501, processor 502, and communication interface 503 can communicate with each other through an internal interface.

[0082] Processor 502 may be a CPU (Central Processing Unit), an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement embodiments of this application.

[0083] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described method for coordinated temperature and flow control of an array heat exchanger.

[0084] This application also provides a computer program product, including a computer program or instructions, which, when executed, implement the above-described method for coordinated temperature and flow control of an array heat exchanger.

[0085] 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 this application. 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.

[0086] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "N" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0087] 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 this application includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the functions involved, as should be understood by those skilled in the art to which embodiments of this application pertain.

[0088] It should be understood that the various parts of this application 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 (FPGAs), field-programmable gate arrays (FPGAs), etc.

[0089] 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 method for coordinated temperature and flow control of an array heat exchanger, characterized in that, Includes the following steps: Obtain the given power command for the array heat exchanger; Determine the sensitivity coefficient curve of at least one target control quantity under the power command; the determination of the sensitivity coefficient curve of at least one target control quantity under the power command includes: obtaining a correspondence table between power commands and sensitivity coefficient curves; determining the sensitivity coefficient curve of at least one target control quantity under the power command based on the correspondence table; before obtaining the correspondence table between power commands and sensitivity coefficient curves, the method includes: obtaining the physical characteristic equation of the heat exchanger in the array heat exchanger; establishing a set of physical characteristic equations of the array heat exchanger based on the physical characteristic equation of the heat exchanger; performing sensitivity analysis on the at least one target control quantity under multiple power commands, generating sensitivity coefficient curves based on the sensitivity analysis data, wherein, before the sensitivity analysis, the ratio of inlet air temperature to inlet air mass flow rate is determined; generating a correspondence table based on the multiple power commands and the sensitivity coefficient curve of at least one target control quantity under each power command; the physical characteristic equation is: in, For the temperature of the hot fluid, The temperature of the cold fluid. For thermal fluid linear density, The linear density of the cold fluid. The specific heat capacity at constant pressure of a thermal fluid. For the isobaric specific heat capacity of a cold fluid, For the mass flow rate of the thermal fluid, For the mass flow rate of the cold fluid, The heat transfer coefficient, For heat exchange area; The ratio of inlet air temperature to inlet air mass flow rate of the array heat exchanger is determined by fitting the sensitivity coefficient curve of each target control variable. The array heat exchanger is subjected to coordinated temperature and flow control based on the stated ratio.

2. The method for coordinated temperature and flow control of an array heat exchanger according to claim 1, characterized in that, The target control quantity includes at least one of the hot fluid temperature, cold fluid temperature, hot fluid linear density, and cold fluid linear density.

3. The method for coordinated temperature and flow control of an array heat exchanger according to claim 1, characterized in that, Before performing coordinated temperature and flow control on the array heat exchanger based on the stated proportion, the method further includes: Obtain the initial equivalent power of the array heat exchanger; Calculate the power difference between the given power corresponding to the given power command and the initial equivalent power; If the power difference is greater than a preset value, the array heat exchanger is subjected to coordinated temperature and flow control according to the ratio.

4. A temperature and flow rate coordinated control device for an array-type heat exchanger, characterized in that, include: The acquisition module is used to acquire the given power command of the array heat exchanger; The determination module is used to determine the sensitivity coefficient curve of at least one target control quantity under the power command; The fitting module is used to fit the sensitivity coefficient curve of each target control variable to determine the ratio of the inlet air temperature to the inlet air mass flow rate of the array heat exchanger. The process of determining the sensitivity coefficient curve of at least one target control quantity under the power command includes: obtaining a correspondence table between power commands and sensitivity coefficient curves; determining the sensitivity coefficient curve of at least one target control quantity under the power command based on the correspondence table; before obtaining the correspondence table, the process includes: obtaining the physical characteristic equation of the heat exchanger in the array heat exchanger; establishing a set of physical characteristic equations for the array heat exchanger based on the physical characteristic equation of the heat exchanger; performing sensitivity analysis on the at least one target control quantity under multiple power commands, and generating a sensitivity coefficient curve based on the sensitivity analysis data, wherein the ratio of inlet air temperature to inlet air mass flow rate is determined before the sensitivity analysis; generating a correspondence table based on the multiple power commands and the sensitivity coefficient curve of at least one target control quantity under each power command; the physical characteristic equation is: in, For the temperature of the hot fluid, The temperature of the cold fluid. For thermal fluid linear density, The linear density of the cold fluid. The specific heat capacity at constant pressure of a thermal fluid. For the isobaric specific heat capacity of a cold fluid, For the mass flow rate of the thermal fluid, For the mass flow rate of the cold fluid, The heat transfer coefficient, For heat exchange area; The control module is used to perform coordinated temperature and flow control on the array heat exchanger according to the ratio.

5. A control device for a compressed air energy storage system, characterized in that, include: The memory, the processor, and the computer program stored in the memory and executable on the processor, the processor executing the program to implement the array heat exchanger temperature and flow coordinated control method as described in any one of claims 1-3.

6. A computer-readable storage medium having a computer program stored thereon, characterized in that, The program is executed by the processor to implement the array heat exchanger temperature and flow coordinated control method as described in any one of claims 1-3.

7. A computer program product, comprising a computer program or instructions, characterized in that, When the computer program or instructions are executed, they implement the array heat exchanger temperature and flow rate coordinated control method according to any one of claims 1-3.

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