Compressed air energy storage array type heat exchanger topological optimization method, device and equipment

Abstract

The invention relates to the technical field of heat exchangers, in particular to a topological optimization method, device and equipment for a compressed air energy storage array type heat exchanger, and the method comprises the steps: building a physical model and a structural topological model of the array type heat exchanger; the cold fluid outlet temperature and the hot fluid outlet temperature of the array heat exchanger are determined based on the physical model of the array heat exchanger, and the connection rule and the operation mode of each heat exchanger unit are obtained; establishing a physical model of a turbine connected with the array heat exchanger, and determining the number of heat exchanger units used by the array heat exchanger in combination with the previous temperature information and the operation rule of the heat exchanger units; and optimizing the structural topology model of the array heat exchanger according to the equivalent power corresponding to the number of the heat exchanger units used by the array heat exchanger, and controlling the flow of the array heat exchanger by using the optimized structural topology model. Therefore, the problems that in the prior art, a compressed air energy storage system heat exchanger is low in operation efficiency and difficult to adapt to variable working conditions are solved.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, and in particular to a method, device and equipment for topological optimization of a compressed air energy storage array heat exchanger. Background Art

[0002] Compressed air energy storage system, as a long-term energy storage technology comparable to pumped storage, plays a key role in solving energy consumption problems such as wind and solar power abandonment due to its many advantages such as loose site selection conditions, simple equipment structure, and strong inertial support capacity. It has become an important direction of current energy storage technology development.

[0003] In compressed air energy storage systems, the heat exchanger is a core component, and its operating efficiency is directly related to the electricity-to-electricity conversion efficiency of the entire system. The heat exchanger must not only efficiently complete heat transfer, but also maintain stable performance under variable operating conditions, making full use of the compression heat and air pressure to maximize the overall efficiency of the system. However, the heat exchanger in compressed air energy storage systems has deficiencies in operating efficiency and stability, making it difficult to effectively utilize the compression heat and air pressure under variable operating conditions, thus affecting the improvement of the overall efficiency of the system. Summary of the Invention

[0004] The present application provides a method, device and equipment for topology optimization of a compressed air energy storage array heat exchanger to solve the problems of low operating efficiency and difficulty in adapting to changing working conditions in the compressed air energy storage system heat exchanger in the prior art.

[0005] A first aspect embodiment of the present application provides a method for topology optimization of a compressed air energy storage array heat exchanger, comprising the following steps: establishing a physical model and a structural topology model of the array heat exchanger; determining the cold fluid outlet temperature and the hot fluid outlet temperature of the array heat exchanger based on the physical model of the array heat exchanger, and obtaining the connection rules and operating modes of each heat exchanger unit of the array heat exchanger; establishing a physical model of a turbine connected to the array heat exchanger, and determining the number of heat exchanger units used in the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operating modes of each heat exchanger unit; optimizing the structural topology model of the array heat exchanger according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger to obtain an optimized structural topology model, and using the optimized structural topology model to control the flow of the array heat exchanger.

[0006] Optionally, the connection rule includes: the heat exchanger units are connected in parallel, and the cold fluid and the hot fluid between each heat exchanger unit and the adjacent heat exchanger unit at the target inlet and outlet are connected in series.

[0007] Optionally, the operating regime includes equal mass flow rates of hot and cold fluids in each heat exchanger unit.

[0008] Optionally, the number of heat exchanger units used in the array heat exchanger is determined based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operating modes of each heat exchanger unit, including: determining a power instruction that meets the needs of the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operating modes of each heat exchanger unit; enumerating or statically calculating the number of heat exchanger units under the power instruction to determine the number of heat exchanger units used in the array heat exchanger.

[0009] Optionally, the structural topology model of the array heat exchanger is optimized according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger to obtain the optimized structural topology model, including: determining the objective function according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger, wherein the objective function includes at least one of the equivalent power tracking deviation, the heat fluid heat exchange waste energy and the overall heat exchange efficiency of the heat exchanger; using the objective function to optimize the structural topology model of the array heat exchanger so that at least one of the equivalent power tracking deviation, the heat fluid heat exchange waste energy and the overall heat exchange efficiency of the heat exchanger meets the preset conditions, thereby obtaining the optimized structural topology model.

[0010] The second aspect of the present application provides a compressed air energy storage array heat exchanger topology optimization device, including: an establishment module for establishing a physical model and a structural topology model of the array heat exchanger; an acquisition module for determining the cold fluid outlet temperature and the hot fluid outlet temperature of the array heat exchanger based on the physical model of the array heat exchanger, and obtaining the connection rules and operating modes of each heat exchanger unit of the array heat exchanger; a determination module for establishing a physical model of a turbine connected to the array heat exchanger, and determining the number of heat exchanger units used in the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operating modes of each heat exchanger unit; a control module for optimizing the structural topology model of the array heat exchanger according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger, obtaining an optimized structural topology model, and using the optimized structural topology model to control the flow of the array heat exchanger.

[0011] In a third aspect, an embodiment of the present application provides a compressed air energy storage array heat exchanger topology, which is optimized using the above compressed air energy storage array heat exchanger topology optimization method.

[0012] The fourth aspect of the present application provides an electronic device, comprising: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the above-mentioned compressed air energy storage array heat exchanger topology optimization method.

[0013] The fifth embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which is executed by a processor to implement the above-mentioned compressed air energy storage array heat exchanger topology optimization method.

[0014] The sixth embodiment of the present application provides a computer program product having a computer program or instructions stored thereon. When the computer program or instructions are executed, the method for topology optimization of a compressed air energy storage array heat exchanger as described above is implemented.

[0015] Therefore, this application has at least the following beneficial effects:

[0016] The embodiment of the present application constructs a physical and structural topological model of the array heat exchanger to gain an in-depth understanding of the working principles and structural characteristics. On the basis of determining the outlet temperatures of the hot and cold fluids and the connection and operation rules of the heat exchanger units, it further constructs a physical model of the turbine and determines the number of heat exchanger units based on a combination of various factors. By dynamically adjusting the connection method and operating parameters, the array heat exchanger can flexibly adapt to different working conditions and meet variable operating requirements. At the same time, by optimizing and changing the number of heat exchanger units and the structural topological model, it can not only achieve the expansion of the operating domain of the heat exchanger system, but also achieve precise control of the heat exchanger flow rate, thereby significantly improving the efficient operation capability of the compressed air energy storage heat exchange system. In this way, the technical problems in the prior art such as the low operating efficiency of the compressed air energy storage system heat exchanger and the difficulty in adapting to variable working conditions are solved.

[0017] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0019] Figure 1 This is a flow chart of a topology optimization method for a compressed air energy storage array heat exchanger according to an embodiment of the present application;

[0020] Figure 2 This is a flow chart of a topology optimization method for a compressed air energy storage array heat exchanger according to one embodiment of the present application;

[0021] Figure 3 A schematic diagram of a compressed air energy storage array heat exchanger topology optimization device provided according to an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of an electronic device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0024] The following describes the topology optimization method, device and equipment of the compressed air energy storage array heat exchanger of the embodiment of the present application with reference to the accompanying drawings. In response to the problem of effective utilization of thermal resources of the compressed air energy storage heat exchange system mentioned in the above background technology, the present application provides a topology optimization method of the compressed air energy storage array heat exchanger. In this method, by constructing a physical and structural topological model of the array heat exchanger, the working principle and structural characteristics are deeply understood. On the basis of determining the outlet temperature of the cold and hot fluids and the connection and operation rules of the heat exchanger unit, a turbine physical model is further constructed, and the number of heat exchanger units is determined by comprehensively considering various factors. By dynamically adjusting the connection method and operating parameters, the array heat exchanger can flexibly adapt to different working conditions and meet variable operating requirements. At the same time, by optimizing and changing the number of heat exchanger units and the structural topological model, not only can the operating domain of the heat exchanger system be expanded, but also the precise control of the heat exchanger flow rate can be achieved, thereby significantly improving the efficient operation capability of the compressed air energy storage heat exchange system. As a result, the problems of low operating efficiency of the compressed air energy storage system heat exchanger and difficulty in adapting to variable working conditions in the prior art are solved.

[0025] Specifically, Figure 1 A schematic flow chart of a method for topology optimization of a compressed air energy storage array heat exchanger provided in an embodiment of the present application.

[0026] like Figure 1 As shown, the compressed air energy storage array heat exchanger topology optimization method includes the following steps:

[0027] In step S101 , a physical model and a structural topology model of the array heat exchanger are established.

[0028] Among them, physical models may include LMTD (logarithmic mean temperature difference method), ε-NTU (heat exchanger effectiveness-number of transfer units method), heat flow method, etc.

[0029] It can be understood that the embodiment of the present application can analyze the physical behavior and performance prediction of the heat exchanger by establishing a physical model of the array heat exchanger, and establish a structural topological model to describe the structural composition and topological relationship of the heat exchanger, providing strong support for optimizing design and improving system efficiency.

[0030] In step S102, the cold fluid outlet temperature and the hot fluid outlet temperature of the array heat exchanger are determined based on the physical model of the array heat exchanger, and the connection rules and operation modes of each heat exchanger unit of the array heat exchanger are obtained.

[0031] The cold fluid outlet temperature may be the temperature of the cold fluid flowing out of the heat exchanger after heat exchange in the array heat exchanger; the hot fluid outlet temperature may be the temperature of the hot fluid flowing out of the heat exchanger after heat exchange in the array heat exchanger;

[0032] The connection rule may include connecting the heat exchanger units in parallel, and connecting the cold fluid and the hot fluid between each heat exchanger unit and the adjacent heat exchanger unit at the target inlet and outlet in series, wherein the parallel connection may be that multiple heat exchanger units are arranged side by side on the fluid flow path so that the fluid can flow through these units at the same time, and the series connection may be that in the series connection of the heat exchanger units, the fluid passes through one heat exchanger unit after another in sequence;

[0033] The operating mode may include that the mass flow rates of the hot and cold fluids in each heat exchanger unit are equal, wherein the mass flow rate may be the mass of fluid passing through a unit area per unit time.

[0034] It can be understood that the outlet temperatures of the cold fluid and hot fluid obtained by calculating the physical model in the embodiment of the present application can accurately predict the heat exchange performance of the array heat exchanger, obtain and adjust the connection method and operation mode of each heat exchanger unit, optimize the heat exchange efficiency of the heat exchanger, reduce energy consumption, and thus improve operational stability and reliability.

[0035] In step S103, a physical model of the turbine connected to the array heat exchanger is established. Based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operating mode of each heat exchanger unit, the number of heat exchanger units used in the array heat exchanger is determined.

[0036] The turbine physical model may be a mathematical description of the actual working principle and operating state of the turbine, and the number of heat exchanger units may be the number of independent heat exchanger units constituting the array heat exchanger.

[0037] It can be understood that the embodiment of the present application can predict the performance of the turbine under different inlet fluid conditions by establishing a physical model of the turbine, and based on the cold fluid outlet temperature and the hot fluid outlet temperature, the connection rules and operating mode of each heat exchanger unit, the performance requirements of the turbine can be analyzed, and the number of heat exchanger units required for the array heat exchanger can be determined, thereby reducing operating costs and achieving accurate prediction and optimization of performance.

[0038] In an embodiment of the present application, the number of heat exchanger units used in the array heat exchanger is determined based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operating modes of each heat exchanger unit, including: determining a power instruction that meets the needs of the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operating modes of each heat exchanger unit; enumerating or statically calculating the number of heat exchanger units under the power instruction to determine the number of heat exchanger units used in the array heat exchanger.

[0039] Among them, the power instruction can be the turbine output power target set to meet specific performance requirements, enumeration can be the process of checking all possible unit number combinations in the process of determining the number of heat exchanger units used in the array heat exchanger, and static game can be the analysis of the impact of different unit numbers on system performance and economy under a given power instruction, without considering the reactions or adjustments of other parts of the system that may be caused by changes in the number of units.

[0040] It can be understood that the embodiments of the present application can formulate power instructions that meet system requirements by combining the physical model of the turbine, fluid temperature parameters, and the connection and operation rules of the heat exchanger unit. By using enumeration or static game methods, the optimal number of heat exchanger units can be determined while meeting the power instructions to achieve a balance between performance and economy.

[0041] For example, taking enumeration as an example, Figure 2 As shown, first a power setting value is given, and then the number of heat exchanger units N is given, where the initial value can be 1. The lower limit of the power emitted under the number of heat exchanger units that meets the error requirement is calculated. When the power lower limit is greater than the power setting value, the calculation ends. Otherwise, the number of heat exchanger units is increased and the calculation is repeated.

[0042] In step S104, the structural topology model of the array heat exchanger is optimized according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger to obtain an optimized structural topology model, and the flow of the array heat exchanger is controlled using the optimized structural topology model.

[0043] The equivalent power may be the amount of heat that can be transferred or the amount of heat exchange performed by the heat exchanger per unit time.

[0044] It can be understood that the embodiments of the present application can significantly improve the heat exchange efficiency of the array heat exchanger by optimizing the number of heat exchanger units and flow control, thereby helping to reduce energy consumption; by optimizing and changing the number of heat exchanger units and the topological structure, the operating domain of the heat exchanger system can be expanded; the optimized structural topological model makes the flow distribution more reasonable, reduces the performance fluctuations caused by uneven flow, and at the same time, can adapt to different working environments and changing needs.

[0045] In an embodiment of the present application, the structural topology model of the array heat exchanger is optimized according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger to obtain the optimized structural topology model, including: determining the objective function according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger, wherein the objective function includes at least one of the equivalent power tracking deviation, the heat fluid heat exchange waste energy and the overall heat exchange efficiency of the heat exchanger; using the objective function to optimize the structural topology model of the array heat exchanger so that at least one of the equivalent power tracking deviation, the heat fluid heat exchange waste energy and the overall heat exchange efficiency of the heat exchanger meets the preset conditions, thereby obtaining the optimized structural topology model.

[0046] Among them, the equivalent power tracking deviation can be the difference or deviation between the actual equivalent power generated and the expected or target equivalent power; the heat transfer waste energy of the hot fluid can be the unused thermal energy retained by the hot fluid after passing through the heat exchanger; the overall heat transfer efficiency of the heat exchanger can be the ratio of the heat transferred from the hot fluid to the cold fluid by the heat exchanger to the total heat carried by the hot fluid; the preset condition can be the expected standards or restrictions set for performance indicators such as the equivalent power tracking deviation, the heat transfer waste energy of the hot fluid and the overall heat transfer efficiency of the heat exchanger during the optimization process.

[0047] It can be understood that the embodiment of the present application determines the objective function including the equivalent power tracking deviation, the heat exchange waste energy of the heat fluid and the overall heat exchange efficiency of the heat exchanger through the relationship between the number of heat exchanger units used in the array heat exchanger and the equivalent power. The objective function is used to optimize the structural topology model of the array heat exchanger. The optimized structural topology model can more accurately track the target equivalent power, reduce the deviation between the actual power and the target power, and effectively reduce the waste energy of the heat fluid after passing through the heat exchanger, so that the heat exchanger can complete the heat exchange process more quickly, thereby improving the heat treatment capacity.

[0048] Specifically, the objective functions of equivalent power tracking deviation, heat fluid heat transfer waste energy and overall heat transfer efficiency of the heat exchanger are optimized. The proportion of each element in the objective function can be determined according to different methods, such as zero-sum game method, entropy weight method, etc. Taking the zero-sum game method as an example, the multi-objective optimization problem containing various elements is converted into a single-objective optimization problem model with equivalent problems, and the weight proportion of each element is obtained through multi-person zero-sum game to eliminate subjective factors.

[0049] The optimization constraints include turbine power instruction constraints, turbine safe operation constraints, shared gas path constraints for each level of array heat exchangers, and heat exchanger safe operation constraints. In the process of writing these constraints, the impact of mass flow rate changes on the physical quantities of the model must be considered. All physical quantities related to the heat exchanger are modeled as variables and written into the topology optimization constraints. Related nonlinear and non-convex constraints can be relaxed and linearized through relevant methods to consider the dynamic characteristics of the model in steady-state analysis for more accurate calculations.

[0050] According to the compressed air energy storage array heat exchanger topology optimization method proposed in the embodiment of the present application, by constructing the physical and structural topological model of the array heat exchanger, the working principle and structural characteristics are deeply understood. On the basis of determining the outlet temperatures of the hot and cold fluids and the connection and operation rules of the heat exchanger units, the turbine physical model is further constructed, and the number of heat exchanger units is determined by comprehensively considering various factors. By dynamically adjusting the connection method and operating parameters, the array heat exchanger can flexibly adapt to different working conditions and meet variable operating requirements. At the same time, by optimizing and changing the number of heat exchanger units and the structural topological model, not only can the operating domain of the heat exchanger system be expanded, but also the precise control of the heat exchanger flow rate can be achieved, thereby significantly improving the efficient operation capability of the compressed air energy storage heat exchange system. In this way, the problems of low operating efficiency of the heat exchanger of the compressed air energy storage system and difficulty in adapting to variable working conditions in the prior art are solved.

[0051] The following is a specific example of a method for topology optimization of a compressed air energy storage array heat exchanger, including the following steps:

[0052] S1 establishes a physical model of the counterflow heat exchanger, where the physical model can include LMTD (logarithmic mean temperature difference method), ε-NTU (heat exchanger effectiveness-number of transfer units method), heat flow method, etc., and obtains the outlet temperatures of the hot and cold fluids of the heat exchanger using the established model and the given initial conditions;

[0053] It should be noted that the initial condition may be the inlet and outlet temperatures of the hot and cold fluids of the heat exchanger at time t=0.

[0054] S2 establishes the structural topology model of the array heat exchanger;

[0055] S3 specifies the connection rules and operation modes of each heat exchanger unit of the array heat exchanger. In the array heat exchanger structural topology model, the cold and hot fluids of each heat exchanger unit are considered separately. However, they all follow the principle that parallel connection is only at the main inlet and outlet, and only the cold and hot fluids of two adjacent heat exchanger units are allowed to be connected in series.

[0056] It should be noted that the total inlet and outlet may be the total inlet and outlet of the array heat exchanger. For the convenience of control, the mass flow rates of the cold and hot fluids in each heat exchanger unit are equal.

[0057] S4 models the turbine to determine the power command, models the turbine connected to the heat exchanger using a mathematical formula, and equates the power signal output by the turbine to the power command that the heat exchanger needs to meet;

[0058] S5 determines the number of heat exchanger units used by the array heat exchanger according to the specified power instruction, and determines the number of heat exchanger units by enumeration method or static game method;

[0059] S6 performs topology optimization on the array heat exchanger according to the selected objective function. The number of heat exchanger units and the corresponding equivalent power determined by S5 are input into the optimization program, and then the array heat exchanger is topologically optimized.

[0060] In summary, the embodiments of the present application can expand the operating domain of the heat exchanger system by optimizing and changing the number of heat exchanger units and the topological structure. The proposed model and optimization method fully consider the dynamic characteristics of the model, modeling the physical quantities related to the mass flow rate into variables for topological optimization to achieve semi-dynamic steady-state model. The number of heat exchanger units suitable for a given power instruction is calculated through relevant algorithms, and then topology optimization is performed through the equivalent power coupling relationship between the heat exchanger and the turbine to achieve reasonable allocation of thermal resources.

[0061] It should be noted that the air heated by the heat exchanger flows into the turbine to perform work, and the temperature and mass flow rate of the air will be reflected in the power output of the turbine, thus forming a coupling relationship.

[0062] Next, a compressed air energy storage array heat exchanger topology optimization device proposed according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0063] Figure 3 It is a block diagram of a compressed air energy storage array heat exchanger topology optimization device according to an embodiment of the present application.

[0064] like Figure 3 As shown, the compressed air energy storage array heat exchanger topology optimization device 10 includes: an establishment module 100, an acquisition module 200, a determination module 300 and a control module 400.

[0065] Among them, the establishment module 100 is used to establish the physical model and structural topology model of the array heat exchanger; the acquisition module 200 is used to determine the cold fluid outlet temperature and the hot fluid outlet temperature of the array heat exchanger based on the physical model of the array heat exchanger, and obtain the connection rules and operating modes of each heat exchanger unit of the array heat exchanger; the determination module 300 is used to establish the physical model of the turbine connected to the array heat exchanger, and determine the number of heat exchanger units used in the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operating modes of each heat exchanger unit; the control module 400 is used to optimize the structural topology model of the array heat exchanger according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger, obtain the optimized structural topology model, and use the optimized structural topology model to control the flow of the array heat exchanger.

[0066] It should be noted that the aforementioned explanation of the embodiment of the compressed air energy storage array heat exchanger topology optimization method is also applicable to the compressed air energy storage array heat exchanger topology optimization device of this embodiment, and will not be repeated here.

[0067] According to the compressed air energy storage array heat exchanger topology optimization device proposed in the embodiment of the present application, by constructing a physical and structural topological model of the array heat exchanger, the working principle and structural characteristics are deeply understood. On the basis of determining the outlet temperatures of the hot and cold fluids and the connection and operation rules of the heat exchanger units, a turbine physical model is further constructed, and the number of heat exchanger units is determined by comprehensively considering various factors. By dynamically adjusting the connection method and operating parameters, the array heat exchanger can flexibly adapt to different working conditions and meet variable operating requirements. At the same time, by optimizing and changing the number of heat exchanger units and the structural topological model, not only can the operating domain of the heat exchanger system be expanded, but also the precise control of the heat exchanger flow rate can be achieved, thereby significantly improving the efficient operation capability of the compressed air energy storage heat exchange system. In this way, the problems of low operating efficiency of the heat exchanger of the compressed air energy storage system and difficulty in adapting to variable working conditions in the prior art are solved.

[0068] An embodiment of the present application also provides a compressed air energy storage array heat exchanger topology, which is optimized using the above compressed air energy storage array heat exchanger topology optimization method.

[0069] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of the present application. The electronic device may include:

[0070] Memory 401 , processor 402 , and computer programs stored in the memory 401 and executable on the processor 402 .

[0071] When the processor 402 executes the program, the compressed air energy storage array heat exchanger topology optimization method provided in the above embodiment is implemented.

[0072] Furthermore, the electronic device further includes:

[0073] The communication interface 403 is used for communication between the memory 401 and the processor 402 .

[0074] The memory 401 is used to store computer programs that can be run on the processor 402 .

[0075] The memory 401 may include a high-speed RAM (Random Access Memory) memory, and may also include a non-volatile memory, such as at least one disk memory.

[0076] If the memory 401, the processor 402, and the communication interface 403 are implemented independently, the communication interface 403, the memory 401, and the processor 402 can be connected to each other via a bus and communicate with each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component Interconnect) bus, or an EISA (Extended Industry Standard Architecture) bus. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 4 Only one thick line is used in the diagram, but this does not mean that there is only one bus or one type of bus.

[0077] Optionally, in a specific implementation, if the memory 401, the processor 402 and the communication interface 403 are integrated on a chip, the memory 401, the processor 402 and the communication interface 403 can communicate with each other through an internal interface.

[0078] The processor 402 may be a CPU (Central Processing Unit), or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present application.

[0079] An embodiment of the present application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the above-mentioned compressed air energy storage array heat exchanger topology optimization method.

[0080] An embodiment of the present application also provides a computer program product having a computer program or instructions stored thereon, which, when executed, implements the above-mentioned compressed air energy storage array heat exchanger topology optimization method.

[0081] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or N embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0082] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this application, "N" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0083] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code comprising one or more executable instructions for implementing the steps of a custom logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0084] It should be understood that various parts of the present application can be implemented using hardware, software, firmware, or a combination thereof. In the above embodiment, the N steps or methods can be implemented using software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented using hardware, as in another embodiment, any one of the following technologies known in the art or a combination thereof can be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application-specific integrated circuit having a suitable combination of logic gate circuits, a programmable gate array, a field programmable gate array, etc.

[0085] Those skilled in the art will understand that all or part of the steps in the method of the above embodiment can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

Claims

1. A method for topological optimization of a compressed air energy storage array heat exchanger, characterized in that: The following steps are involved: Establish the physical model and structural topology model of array heat exchanger; Determine the cold fluid outlet temperature and the hot fluid outlet temperature of the array heat exchanger based on the physical model of the array heat exchanger, and obtain the connection rules and operation modes of each heat exchanger unit of the array heat exchanger; Establishing a physical model of a turbine connected to the array heat exchanger, and determining the number of heat exchanger units used in the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operation modes of each heat exchanger unit; The structural topological model of the array heat exchanger is optimized according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger to obtain an optimized structural topological model, and the flow of the array heat exchanger is controlled using the optimized structural topological model.

2. The compressed air energy storage array heat exchanger topology optimization method according to claim 1, characterized in that: The connection rule includes: the heat exchanger units are connected in parallel, and the cold fluid and the hot fluid between each heat exchanger unit and the adjacent heat exchanger unit at the target inlet and outlet are connected in series.

3. The compressed air energy storage array heat exchanger topology optimization method according to claim 1, characterized in that: The operating regime includes equal mass flow rates of hot and cold fluids in each heat exchanger unit.

4. The compressed air energy storage array heat exchanger topology optimization method according to claim 1, characterized in that: The determining the number of heat exchanger units used in the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operation modes of each heat exchanger unit includes: Determining a power instruction that meets the needs of the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operation modes of each heat exchanger unit; The number of heat exchanger units is enumerated or statically arbitrarily determined under the power instruction to determine the number of heat exchanger units used by the array heat exchanger.

5. The compressed air energy storage array heat exchanger topology optimization method according to claim 1, characterized in that: The structural topological model of the array heat exchanger is optimized according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger to obtain the optimized structural topological model, including: Determine the objective function according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger, wherein the objective function includes at least one of the equivalent power tracking deviation, the heat exchange residual energy of the hot fluid and the overall heat exchange efficiency of the heat exchanger; The structural topological model of the array heat exchanger is optimized using the objective function so that at least one of the equivalent power tracking deviation, the heat fluid heat exchange waste energy and the overall heat exchange efficiency of the heat exchanger meets preset conditions, thereby obtaining an optimized structural topological model.

6. A compressed air energy storage array heat exchanger topology optimization device, characterized in that: include: Create modules, Used to establish the physical model and structural topology model of array heat exchanger; An acquisition module, used to determine the cold fluid outlet temperature and the hot fluid outlet temperature of the array heat exchanger based on the physical model of the array heat exchanger, and to acquire the connection rules and operation modes of each heat exchanger unit of the array heat exchanger; a determination module, configured to establish a physical model of a turbine connected to the array heat exchanger, and determine the number of heat exchanger units used in the array heat exchanger based on the physical model of the turbine, the cold fluid outlet temperature and the hot fluid outlet temperature, and the connection rules and operation modes of each heat exchanger unit; The control module is used to optimize the structural topological model of the array heat exchanger according to the equivalent power corresponding to the number of heat exchanger units used in the array heat exchanger, obtain the optimized structural topological model, and use the optimized structural topological model to control the flow of the array heat exchanger.

7. A compressed air energy storage array heat exchanger topology, characterized in that: It is obtained by optimizing the compressed air energy storage array heat exchanger topology optimization method according to any one of claims 1 to 5.

8. An electronic device, characterized in that: include: 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 compressed air energy storage array heat exchanger topology optimization method as described in any one of claims 1 to 5.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: The program is executed by a processor to implement the compressed air energy storage array heat exchanger topology optimization method as described in any one of claims 1 to 5.

10. A computer program product having a computer program or instructions stored thereon, characterized in that: When the computer program or instruction is executed, the compressed air energy storage array heat exchanger topology optimization method according to any one of claims 1 to 5 is implemented.

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