Advanced adiabatic compressed air energy storage parameter configuration method

Abstract

The invention relates to the technical field of energy engineering, in particular to an advanced adiabatic compressed air energy storage parameter configuration method and device and electronic equipment, and the method comprises the steps: building an advanced adiabatic compressed air energy storage structure model; acquiring a target operation strategy of the structure model, analyzing an internal energy conversion relation and an internal thermal coupling relation of the structure model based on the target operation strategy, and establishing a compression and expansion coupling system model of the advanced adiabatic compressed air energy storage based on the internal energy conversion relation and the internal thermal coupling relation; and generating a configuration optimization model of the advanced adiabatic compressed air energy storage according to the compression and expansion coupling system model, and configuring parameters of the advanced adiabatic compressed air energy storage by using the configuration optimization model. Therefore, the problems that in the prior art, the structure is complex, a plurality of parts with nonlinear characteristics are covered, electricity-gas-heat multi-energy coupling is involved, and the design and configuration difficulty is high are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of energy engineering, and in particular to an advanced adiabatic compressed air energy storage parameter configuration method and device and electronic equipment. BACKGROUND

[0002] The increasingly severe global climate problem has driven the rapid development of renewable energy, and energy storage technology is considered a key means to improve the stability of renewable energy. Among them, the advanced adiabatic compressed air energy storage technology has attracted widespread attention due to its high efficiency, low cost, and zero carbon emission advantages, and has been actively applied at home and abroad.

[0003] However, due to the complex design structure of the advanced adiabatic compressed air energy storage technology, it covers multiple components with nonlinear characteristics, and involves multi-energy coupling between electrical energy, gas energy and thermal energy during operation, making the modeling, control and configuration process of the system more complex, therefore, the overall design and parameter configuration faces significant challenges. SUMMARY

[0004] The present application provides an advanced adiabatic compressed air energy storage parameter configuration method, device and electronic equipment to solve the problems of complex structure, covering multiple components with nonlinear characteristics, and involving electrical-gas-thermal multi-energy coupling, and great difficulty in design and configuration of related technologies.

[0005] The first aspect of the present application provides an advanced adiabatic compressed air energy storage parameter configuration method, comprising the following steps: establishing a structure model of advanced adiabatic compressed air energy storage; obtaining a target operation strategy of the structure model, analyzing the internal energy conversion relationship and internal thermal coupling relationship of the structure model based on the target operation strategy, establishing a compression and expansion coupling system model of the advanced adiabatic compressed air energy storage based on the internal energy conversion relationship and the internal thermal coupling relationship; generating a configuration optimization model of the advanced adiabatic compressed air energy storage according to the compression and expansion coupling system model, and configuring the parameters of the advanced adiabatic compressed air energy storage using the configuration optimization model.

[0006] Optionally, in an embodiment of the present application, the structure model includes multiple compressors, expanders, heat exchangers, gas storage tanks and heat storage tanks.

[0007] Optionally, in an embodiment of the present application, the target operation strategy includes: in the air charging stage, air is sucked into the compressor and is lifted to a high pressure and high temperature state, through the heat exchanger, the heat energy is transferred to the heat fluid of the low temperature heat storage tank, the heat energy is deposited into the high temperature heat storage tank, and the high pressure air is stored into the gas storage tank; in the air discharging stage, the high pressure air of the gas storage tank is heated by the heat fluid of the high temperature heat storage tank through the heat exchanger, the heated air enters the expander to generate electricity, and as the pressure and temperature of the heated air decrease, the heat fluid circulates back to the low temperature heat storage tank.

[0008] Optionally, in an embodiment of the present application, based on the internal energy conversion relationship and the internal thermal coupling relationship, a compression and expansion coupling system model of advanced adiabatic compressed air energy storage is established, comprising: obtaining a pressure constraint condition of the advanced adiabatic compressed air energy storage; determining a thermal coupling characteristic relationship of compression and expansion according to the internal energy conversion relationship and the internal thermal coupling relationship with the pressure constraint condition as a constraint; and establishing the compression and expansion coupling system model according to the thermal coupling characteristic relationship.

[0009] Optionally, in an embodiment of the present application, the internal thermal coupling relationship represents a characteristic relationship of the compressor and the expander, and the internal energy conversion relationship represents an energy conversion relationship of the heat exchanger and the heat storage tank.

[0010] Optionally, in an embodiment of the present application, the compression and expansion coupling system model is:

[0011]

[0012] wherein, and respectively represent an inlet temperature and an outlet temperature of the i th compressor, and respectively represent an inlet temperature and an outlet temperature of the i th expander; and respectively represent an isentropic efficiency of the i th stage of the compressor and the expander; β i represents a compression ratio or an expansion ratio; γ i is a temperature function; HTF (Heat Transfer Fluid, heat transfer fluid), represents a mass flow rate of the heat transfer fluid; T tes,high-temp and T tes,low-temp respectively represent a temperature of a high-temperature thermal energy storage system and a temperature of a low-temperature thermal energy storage system; ε represents a heat exchange efficiency of the heat exchanger, represents an air specific heat capacity; P c and P e respectively represent a charging power of a compression process and a discharging power of an expansion process; p i represents a stage pressure, p env represents an ambient pressure; N c and N e respectively represent a number of stages of the compressor and the expander.

[0013] Optionally, in an embodiment of the present application, a parameter of the advanced adiabatic compressed air energy storage is configured by using a configuration optimization model, comprising: identifying an objective function of the configuration optimization model; determining a target configuration parameter of the advanced adiabatic compressed air energy storage based on a solution of the objective function of the configuration optimization model; and configuring the parameter of the advanced adiabatic compressed air energy storage by using the target configuration parameter.

[0014] Optionally, in an embodiment of the present application, the objective function of the configuration optimization model is configured as:

[0015]

[0016] wherein F inv represents the AA-CAES investment cost, F opr represents the AA-CAES operation cost, r represents the AA-CAES discount rate, L represents the AA-CAES operation life, Z c represents the compressor investment cost, Z e represents the turbine investment cost, S represents the total number of scenarios, T represents the total number of time periods, represents the probability of scenario i, represents the time-of-use electricity price, represents the charging power of AA-CAES at time t, represents the discharging power of AA-CAES at time t.

[0017] The second aspect embodiment of the present application provides an advanced adiabatic compressed air energy storage parameter configuration device, comprising: a construction module, configured to establish a structure model of advanced adiabatic compressed air energy storage; an acquisition module, configured to acquire a target operation strategy of the structure model, analyze internal energy conversion relationship and internal thermal coupling relationship of the structure model based on the target operation strategy, and establish a compression and expansion coupling system model of the advanced adiabatic compressed air energy storage based on the internal energy conversion relationship and the internal thermal coupling relationship; and a generation module, configured to generate a configuration optimization model of the advanced adiabatic compressed air energy storage according to the compression and expansion coupling system model, and configure parameters of the advanced adiabatic compressed air energy storage by using the configuration optimization model.

[0018] Optionally, in an embodiment of the present application, the structure model comprises multiple compressors, expanders, heat exchangers, gas storage tanks and heat storage tanks.

[0019] Optionally, in an embodiment of the present application, the target operation strategy comprises: in the air charging stage, air is sucked into the compressor and lifted to a high pressure and high temperature state, through the heat exchanger, heat energy is transferred to the heat fluid of the low temperature heat storage tank, the heat energy is deposited into the high temperature heat storage tank, and the high pressure air is stored into the gas storage tank; in the air discharging stage, the high pressure air of the gas storage tank is heated by the heat fluid of the high temperature heat storage tank through the heat exchanger, the heated air enters the expander to generate power, and with the decrease of the pressure and temperature of the heated air, the heat fluid circulates back to the low temperature heat storage tank.

[0020] Optionally, in an embodiment of the present application, the obtaining module is further configured to obtain a pressure constraint condition of the advanced adiabatic compressed air energy storage; and determine a thermal coupling characteristic relationship of compression and expansion according to an internal energy conversion relationship and the internal thermal coupling relationship, with the pressure constraint condition as a constraint; and establish a compression and expansion coupling system model according to the thermal coupling characteristic relationship.

[0021] Optionally, in an embodiment of the present application, the internal thermal coupling relationship represents a characteristic relationship of the compressor and the expander, and the internal energy conversion relationship represents an energy conversion relationship of the heat exchanger and the heat storage tank.

[0022] Optionally, in an embodiment of the present application, the compression and expansion coupling system model is:

[0023]

[0024] wherein, and respectively represent an inlet temperature and an outlet temperature of the i-th compressor, and respectively represent an inlet temperature and an outlet temperature of the i-th expander; and respectively represent an isentropic efficiency of the i-th stage of the compressor and the expander; β i represents a compression ratio or an expansion ratio; γ i is a temperature function; HTF (Heat Transfer Fluid) represents a mass flow rate of a heat transfer fluid; T represents a mass flow rate of the heat transfer fluid; T tes,high-temp and T tes,low-temp respectively represent a temperature of a high-temperature thermal energy storage system and a temperature of a low-temperature thermal energy storage system; ε represents a heat exchange efficiency of the heat exchanger, represents a specific heat capacity of air; P c and P e respectively represent a charging power of the compression process and a discharging power of the expansion process; p i represents a stage pressure, p env represents an ambient pressure; N c and N e respectively represent a number of stages of the compressor and the expander.

[0025] Optionally, in an embodiment of the present application, the generating module is further configured to identify a target function of the configuration optimization model; determine a target configuration parameter of the advanced adiabatic compressed air energy storage based on a solution of the target function of the configuration optimization model; and configure parameters of the advanced adiabatic compressed air energy storage by using the target configuration parameter.

[0026] Optionally, in an embodiment of the present application, the target function of the configuration optimization model is:

[0027]

[0028] wherein F inv represents the AA-CAES investment cost, F opr represents the AA-CAES operation cost, r represents the AA-CAES discount rate, L represents the AA-CAES operation life, Z c represents the compressor investment cost, Z e represents the turbine investment cost, S represents the total number of scenarios, T represents the total number of time periods, represents the probability of scenario i, represents the time-of-use electricity price, represents the charging power of AA-CAES at time t, represents the discharging power of AA-CAES at time t.

[0029] The third aspect of the present application provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the program to implement the advanced adiabatic compressed air energy storage parameter configuration method of the above-mentioned embodiments.

[0030] Therefore, the present application includes the following beneficial effects:

[0031] The embodiments of the present application propose a parameter configuration method of an advanced adiabatic compressed air energy storage system. First, a structural model of the energy storage system is constructed to describe the connection and energy flow relationship between main components and subsystems. Second, a target operation strategy of the system under expected operation conditions is obtained. Based on the strategy, the energy conversion path and thermal coupling mechanism between energy forms in the system are analyzed in depth, and the dynamic coupling relationship between the compression stage and the expansion stage is clarified. On this basis, a compression-expansion coupled system model is established, which can depict the energy conversion process and thermal coupling characteristics. Finally, based on the established coupled system model, a configuration optimization model suitable for the multi-objective regulation requirements of the system is constructed. By solving the optimization model, the key parameter configuration scheme of the advanced adiabatic compressed air energy storage system is determined, thereby realizing the comprehensive optimization of the embodiments of the present application in terms of efficiency, flexibility and economy. Thus, the problems of related technologies, such as complex structure, covering multiple components with nonlinear characteristics, involving multi-energy coupling of electricity, gas and heat, and great difficulty in design and configuration, are solved.

[0032] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0034] Figure 1 A flow chart of an advanced adiabatic compressed air energy storage parameter configuration method according to an embodiment of the present application;

[0035] Figure 2 A scenario example diagram of an advanced adiabatic compressed air energy storage parameter configuration device according to an embodiment of the present application;

[0036] Figure 3 A block diagram of an advanced adiabatic compressed air energy storage parameter configuration device according to an embodiment of the present application;

[0037] Figure 4 A structural schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar numerals or characters represent 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 are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0039] The advanced adiabatic compressed air energy storage parameter configuration method, device and electronic device of the embodiments of the present application are described below with reference to the accompanying drawings. In view of the problems mentioned in the above background art, the present application provides an advanced adiabatic compressed air energy storage parameter configuration method, in which the embodiments of the present application first construct a structural model of the energy storage system to describe the connection and energy flow relationship between the main components and the subsystems; secondly, the target operation strategy of the system under the expected operating conditions is obtained, based on which the energy conversion path and the thermal coupling mechanism between the energy forms in the system are analyzed in depth, and the dynamic coupling relationship between the compression stage and the expansion stage is clarified, on the basis of which a compression-expansion coupled system model capable of depicting the energy conversion process and the thermal coupling characteristics is established; finally, based on the established coupled system model, a configuration optimization model suitable for the multi-objective regulation requirements of the system is constructed, and by solving the optimization model, the key parameter configuration scheme of the advanced adiabatic compressed air energy storage system is determined, thereby realizing the comprehensive optimization of the embodiments of the present application in terms of efficiency, flexibility and economy. Thus, the problems of related art, such as complex structure, covering multiple components with nonlinear characteristics, involving electric-gas-thermal multi-energy coupling, and great difficulty in design and configuration, are solved.

[0040] Specifically, Figure 1 A flow chart of an advanced adiabatic compressed air energy storage parameter configuration method according to an embodiment of the present application.

[0041] As Figure 1 shown, the advanced adiabatic compressed air energy storage parameter configuration method comprises the following steps:

[0042] In step S101, a structural model of advanced adiabatic compressed air energy storage is established.

[0043] The advanced adiabatic compressed air energy storage is a high-efficiency and environmentally friendly large-scale electric energy storage technology, and is mainly applied to scenes such as regulating power grid load and improving renewable energy consumption capacity. The core components include a compressor, an expander, a heat exchanger, a gas storage tank and a heat storage tank. When renewable energy generation is sufficient or electricity price is in a trough, the compressor is driven to compress air into the gas storage tank, and the accompanying heat is stored in the heat storage tank. Conversely, when renewable energy supply is limited or electricity price reaches a peak, the high-pressure air stored in the gas storage tank is used for power generation together with the heat stored in the heat storage tank.

[0044] Based on model simplification considerations, related assumptions are made, energy conversion equations of the heat exchanger and the heat storage tank are analyzed, a process of heat coupling between the compression side and the expansion side is analyzed, and a compression and expansion coupling system model of the advanced adiabatic compressed air energy storage is established.

[0045] It can be understood that the establishment of the structural model of the advanced adiabatic compressed air energy storage can comprehensively sort out the composition of the design and the energy flow path therebetween, and clearly define the function division and interaction mechanism of each component in the electric, gas and heat multi-energy coupling process, thereby providing a clear physical basis and logical framework for subsequent energy conversion modeling and heat coupling analysis.

[0046] In the embodiment of the present application, the structural model includes a plurality of compressors, expanders, heat exchangers, gas storage tanks and heat storage tanks.

[0047] The compressor is responsible for compressing ambient air to a high-pressure state and releasing heat, and the expander is driven to expand the released high-pressure air to generate power, thereby constituting a core path of energy input and output. The heat exchanger is used to realize efficient heat exchange between air and heat storage medium during the compression and expansion processes, so as to ensure full recovery and reuse of heat. The gas storage tank is used to store high-pressure compressed air, and plays a role of energy buffering and regulation, while the heat storage tank stores the heat released during the compression process, thereby providing necessary heat input for the subsequent expansion stage, and improving the overall energy efficiency and stability of the system.

[0048] It can be understood that the structural model includes a plurality of devices that jointly constitute a complex structure of multi-energy coupling and collaborative work, thereby providing a physical basis for subsequent model analysis and optimization.

[0049] In step S102, a target operation strategy of the structural model is obtained, the internal energy conversion relationship and the internal heat coupling relationship of the structural model are analyzed based on the target operation strategy, and a compression and expansion coupling system model of the advanced adiabatic compressed air energy storage is established based on the internal energy conversion relationship and the internal heat coupling relationship.

[0050] The internal thermal coupling relationship represents the heat exchange and mutual influence between the internal components of the application.

[0051] It can be understood that by optimizing the target operation strategy and establishing the compression and expansion coupling system model, the energy efficiency of the system can be significantly improved, and the internal energy loss can be reduced. Studying the internal thermal coupling relationship helps to optimize thermal management, reduce heat waste, and avoid the negative impact of temperature fluctuations on equipment. Through effective energy conversion and thermal coupling optimization, the operation and maintenance costs of the system can be significantly reduced.

[0052] In the embodiments of the application, the target operation strategy includes: in the charging stage, air is sucked into the compressor and lifted to a high pressure and high temperature state, through the heat exchanger, the heat energy is transferred to the heat fluid of the low temperature heat storage tank, the heat energy is deposited into the high temperature heat storage tank, and the high pressure air is stored into the gas storage tank; in the discharging stage, the high pressure air of the gas storage tank is heated by the heat fluid of the high temperature heat storage tank through the heat exchanger, the heated air enters the expander to generate electricity, and as the pressure and temperature of the heated air decrease, the heat fluid circulates back to the low temperature heat storage tank.

[0053] The charging stage refers to the process of using electric energy to drive the compressor to compress external air to a high pressure and high temperature state and store it when the electricity price is low or there is surplus electric energy. The discharging stage refers to the process of releasing the stored high pressure air, heating it to drive the expander to generate electricity when the electricity price is high or energy is needed.

[0054] It can be understood that in the charging stage, after the air is compressed to a high pressure and high temperature state, the heat energy is transferred to the heat fluid through the heat exchanger, and finally stored in the high temperature heat storage tank, which not only avoids the material and energy loss caused by the direct entry of high temperature air into the gas storage tank, but also effectively recovers the heat energy in the compression process. In the discharging stage, the air in the high pressure gas storage tank exchanges heat with the high temperature heat fluid through the heat exchanger, so that the cold air is fully preheated before entering the expander to do work and generate electricity, thereby improving the expansion efficiency and output power. At the same time, the heat fluid flows back to the low temperature heat storage tank as the temperature decreases, completing the heat energy circulation. The heat energy is effectively stored and reused in the system, significantly reducing heat loss, improving the overall system's heat recovery efficiency and energy conversion efficiency, reducing energy waste and operation cost, and achieving the economy, sustainability and efficient use of clean energy of the energy storage system.

[0055] In the embodiments of the application, based on the internal energy conversion relationship and the internal thermal coupling relationship, an advanced adiabatic compressed air energy storage compression and expansion coupling system model is established, including: obtaining a pressure constraint condition of the advanced adiabatic compressed air energy storage; determining a thermal coupling characteristic relationship of compression and expansion according to the internal energy conversion relationship and the internal thermal coupling relationship, taking the pressure constraint condition as a constraint; and establishing a compression and expansion coupling system model according to the thermal coupling characteristic relationship.

[0056] where the pressure range constraints of the compression and expansion sections are as follows:

[0057]

[0058] where,

[0059]

[0060] where p c,b , p c,u are the upper and lower bounds of the compression side pressure, p e,b , p e,u are the upper and lower bounds of the expansion side pressure, p env is the ambient pressure, N c , N e are the number of compression / expansion stages, are the pressure ratios of the ith compressor / expander, are the inlet and outlet temperatures of the ith compressor, are the inlet and outlet temperatures of the ith expander, are the isentropic efficiencies of the ith compressor and expander, η M , η G are the correction coefficients of the compressor / expander, is the specific heat capacity of air, are the air mass flow rates of the compression / expansion side, are the outlet and inlet pressures of the ith compressor, are the outlet and inlet pressures of the ith expander, are the outlet and inlet temperatures of the cold fluid, are the outlet and inlet temperatures of the hot fluid, ε is the heat exchanger efficiency, T tes,high-temp , T tes,low-temp are the temperatures of the high-temperature and low-temperature thermal energy storage systems, are the flow rates of the ith intermediate cooler of the HTF and the ith intermediate heater of the HTF, are the outlet and inlet temperatures of the ith intermediate cooler, are the outlet and inlet temperatures of the ith intermediate heater, N c,hx , N c,hx are the number of compression side heat exchangers and the number of expansion side heat exchangers, T HTF,u , T HTF,brespectively represent the upper and lower boundaries of the HTF temperature; (1a) and (1b) describe the characteristics of the compressor and the expander, indicating that there is a strong causal relationship between the inlet and outlet states thereof. (1c) and (1d) respectively represent the energy conversion equations of the heat exchanger and the TES, highlighting the implementation process of the thermal coupling within the AA-CAES architecture.

[0061] It can be understood that, by obtaining the pressure constraint condition of the advanced adiabatic compressed air energy storage and taking it as a constraint condition for the operation of the embodiment of the present application, it can be ensured that the working pressures of the compressor and the expander are always within a reasonable range, avoiding equipment damage or efficiency reduction caused by excessively high or low pressures. On this basis, in combination with the internal energy conversion relationship and the thermal coupling relationship, the interaction and transmission characteristics of thermal energy in the compression and expansion processes can be accurately determined, so as to optimize the flow of energy and the management of heat, and reduce heat loss. Finally, by establishing a compression and expansion coupling system model according to the thermal coupling characteristic relationship, the behavior of the embodiment of the present application under different operating conditions can be comprehensively simulated and predicted, facilitating fine control and adjustment of the system, so that the entire energy storage system can operate efficiently and stably under different loads and working conditions.

[0062] In the embodiment of the present application, the internal thermal coupling relationship represents the characteristic relationship of the compressor and the expander, and the internal energy conversion relationship represents the energy conversion relationship of the heat exchanger and the heat storage tank.

[0063] It can be understood that, through this series of thermal coupling and energy conversion relationships, the collaborative work of key equipment such as compressors, expanders, heat exchangers and heat storage tanks can be more accurately simulated and optimized, and the overall efficiency and reliability of the advanced adiabatic compressed air energy storage system can be improved.

[0064] In the embodiment of the present application, the compression and expansion coupling system model is:

[0065]

[0066] wherein, and respectively represent the inlet temperature and the outlet temperature of the i th compressor, and respectively represent the inlet temperature and the outlet temperature of the i th expander; and respectively represent the isentropic efficiency of the i th stage of the compressor and the expander; β i represents the compression ratio or the expansion ratio; γ i is a temperature function; HTF (Heat Transfer Fluid, heat transfer fluid), represents the mass flow rate of the heat transfer fluid; T tes,high-temp and T tes,low-temprespectively represent the temperature of the high-temperature thermal energy storage system and the low-temperature thermal energy storage system; ε represents the heat exchange efficiency of the heat exchanger, represents the specific heat capacity of air; P c and P e respectively represent the charging power in the compression process and the discharging power in the expansion process; p i represents the pressure at each stage, p env represents the ambient pressure; N c and N e respectively represent the number of stages of the compressor and the expander.

[0067] In step S103, a configuration optimization model of the advanced adiabatic compressed air energy storage is generated according to the compression and expansion coupled system model, and the parameters of the advanced adiabatic compressed air energy storage are configured by using the configuration optimization model.

[0068] It can be understood that, on the basis of the compression and expansion coupled system model, the configuration optimization model is further generated, which can systematically incorporate multiple non-linear energy conversion relationships and coupling characteristics into the overall optimization framework, so that the parameter configuration process has mathematical rigor and engineering feasibility. On this basis, the optimization model is used for parameter configuration, which can realize accurate regulation and control of key design variables (such as compression ratio, equipment efficiency, heat storage temperature, etc.), thereby effectively improving the overall operating efficiency of the system, reducing energy loss, and significantly optimizing the balance between investment and operating costs.

[0069] In the embodiments of the present application, the parameters of the advanced adiabatic compressed air energy storage are configured by using the configuration optimization model, including: identifying the objective function of the configuration optimization model; determining the target configuration parameters of the advanced adiabatic compressed air energy storage based on the solution of the objective function of the configuration optimization model; and configuring the parameters of the advanced adiabatic compressed air energy storage by using the target configuration parameters.

[0070] It can be understood that, by identifying the objective function of the configuration optimization model, the evaluation standard of system design optimization can be determined, and the overall trade-off between the economic efficiency and performance of the advanced adiabatic compressed air energy storage system is realized by taking the minimum sum of annualized investment cost and operating cost as the target; based on the solution result of the objective function, a set of optimal target configuration parameters such as compression ratio, equipment efficiency, flow rate and heat storage working condition are further obtained, so that the system reaches the optimal operating state under the design constraints; finally, the energy storage system is configured by using the target configuration parameters, so that the theoretical optimization result can be effectively converted into engineering practice, and the operating efficiency and economic benefit of the system in actual application are improved.

[0071] In the embodiments of the present application, the objective function of the configuration optimization model is:

[0072]

[0073] wherein, Finv represents the AA-CAES investment cost, F opr represents the AA-CAES operation cost, r represents the AA-CAES discount rate, L represents the AA-CAES operation life, Z c represents the compressor investment cost, Z e represents the turbine investment cost, S represents the total number of scenarios, T represents the total number of time periods, represents the probability of scenario i, represents the time-of-use electricity price, represents the AA-CAES charging power at time t, represents the AA-CAES discharging power at time t.

[0074]

[0075]

[0076] wherein, Z c , Z e represent the compressor investment cost and the expander investment cost, respectively; N c , N e represent the compression and expansion stage number, respectively; represent the mass flow rate on the compression side and the expansion side, respectively; represent the isentropic efficiency of the i-th compressor and the i-th expander, respectively; represent the pressure ratio of the i-th compressor and the i-th expander, respectively; represents the i-th expander inlet temperature; P c , P e represent the total AA-CAES charging power and the total AA-CAES discharging power, respectively; represent the power of the i-th compressor and the i-th expander at time t, respectively; represent the charging and discharging state of the AA-CAES at time t, respectively; represents the actual power generation at time t; represents the power generation at time t; the decision variable is β c , β e , T tes,low-temp , T tes,high-temp , and other non-constant parameters are intermediate variables determined by the decision variables and constant parameters. Constraints are added to the core parameter configuration of the AA-CAES system, (2d)-(2f) specify the operation limits of the compressor and the expander. (2g)-(2h) represent the changes in ASV temperature and pressure. (2i)-(2j) represent the adequacy of power generation and load supply. and represent the random variables of power generation and load limits, respectively, and Pr represents the probability symbol.

[0077] According to the parameter configuration method of the advanced adiabatic compressed air energy storage system provided in the embodiments of the present application, firstly, a structural model of the energy storage system is constructed to describe the connection and energy flow relationship between main components and each subsystem; secondly, a target operation strategy of the system under the expected operation condition is obtained, based on which the energy conversion path inside the system and the thermal coupling mechanism between each energy form are analyzed in depth, and the dynamic coupling relationship between the compression stage and the expansion stage is clarified, on the basis of which a compression-expansion coupled system model capable of describing the energy conversion process and the thermal coupling characteristics is established; finally, based on the established coupled system model, a configuration optimization model suitable for the multi-objective regulation and control requirements of the system is constructed, and by solving the optimization model, the key parameter configuration scheme of the advanced adiabatic compressed air energy storage system is determined, so as to realize the comprehensive optimization of the embodiments of the present application in terms of efficiency, flexibility and economy. Thus, the problems of related technologies, such as complex structure, covering multiple components with nonlinear characteristics, involving electric-gas-thermal multi-energy coupling, and great difficulty in design and configuration, are solved.

[0078] As shown in Figure 2 , it is a scene example diagram of the advanced adiabatic compressed air energy storage parameter configuration device according to the embodiments of the present application. In this scene, the specific processes of the energy storage and energy release processes are as follows:

[0079] In the energy storage stage, the grid electric energy drives the motor to drive the compressor to operate; the compressor compresses the air into a high-pressure state, while generating high temperature; the high-temperature air flows through the heat exchanger, and the heat is transferred to the high-temperature heat storage tank for storage; the cooled high-pressure air is stored in the gas storage chamber, and the energy storage is completed. In the energy release stage, the high-pressure air is released from the gas storage chamber and flows through the heat exchanger; the heat of the high-temperature heat storage tank heats the air to increase its temperature (to improve the expansion efficiency); the high-temperature and high-pressure air drives the expander to rotate, and drives the generator to generate electricity, and the electric energy is transmitted to the grid; the expanded low-temperature air can enter the low-temperature heat storage tank or be directly discharged / circulated.

[0080] Secondly, the advanced adiabatic compressed air energy storage parameter configuration device provided in the embodiments of the present application is described with reference to the accompanying drawings.

[0081] Figure 3 is a block schematic diagram of the advanced adiabatic compressed air energy storage parameter configuration device according to the embodiments of the present application.

[0082] As shown in Figure 3 , the advanced adiabatic compressed air energy storage parameter configuration device 10 comprises a construction module 100, an acquisition module 200 and a generation module 300.

[0083] The structure model of the advanced adiabatic compressed air energy storage is established by the construction module 100; the target operation strategy of the structure model is acquired by the acquisition module 200, the internal energy conversion relationship and the internal thermal coupling relationship of the structure model are analyzed based on the target operation strategy, and the compression and expansion coupling system model of the advanced adiabatic compressed air energy storage is established based on the internal energy conversion relationship and the internal thermal coupling relationship; and the configuration optimization model of the advanced adiabatic compressed air energy storage is generated according to the compression and expansion coupling system model by the generation module 300, and the parameters of the advanced adiabatic compressed air energy storage are configured by using the configuration optimization model.

[0084] In an embodiment of the present application, the structure model includes a plurality of compressors, expanders, heat exchangers, air storage tanks and heat storage tanks.

[0085] In an embodiment of the present application, the acquisition module 200 is further configured to, in the air charging stage, air is sucked into the compressor and is lifted to a high pressure and high temperature state, heat energy is transferred to the heat fluid of the low temperature heat storage tank through the heat exchanger, the heat energy is deposited into the high temperature heat storage tank, and the high pressure air is stored into the air storage tank; in the air discharging stage, the high pressure air of the air storage tank is heated by the heat fluid of the high temperature heat storage tank through the heat exchanger, the heated air enters the expander to generate power, and the heat fluid circulates back to the low temperature heat storage tank as the pressure and temperature of the heated air decrease.

[0086] In an embodiment of the present application, the acquisition module 200 is further configured to acquire the pressure constraint condition of the advanced adiabatic compressed air energy storage; the thermal coupling characteristic relationship between the compression and the expansion is determined according to the internal energy conversion relationship and the internal thermal coupling relationship, with the pressure constraint condition as a constraint; and the compression and expansion coupling system model is established according to the thermal coupling characteristic relationship.

[0087] In an embodiment of the present application, the internal thermal coupling relationship represents the characteristic relationship of the compressor and the expander, and the internal energy conversion relationship represents the energy conversion relationship of the heat exchanger and the heat storage tank.

[0088] In an embodiment of the present application, the compression and expansion coupling system model is as follows:

[0089]

[0090] wherein, and respectively represent the inlet temperature and the outlet temperature of the i th compressor, and respectively represent the inlet temperature and the outlet temperature of the i th expander; and respectively represent the isentropic efficiency of the i th stage of the compressor and the expander; β i represents the compression ratio or the expansion ratio; γ iis a temperature function; HTF (Heat Transfer Fluid) is a heat transfer fluid, represents the mass flow rate of the heat transfer fluid; T tes,high-temp and T tes,low-temp respectively represent the temperatures of the high-temperature thermal energy storage system and the low-temperature thermal energy storage system; ε represents the heat exchange efficiency of the heat exchanger, represents the specific heat capacity of air; P c and P e respectively represent the charging power in the compression process and the discharging power in the expansion process; p i represents the pressure of each stage, p env represents the ambient pressure; N c and N e respectively represent the number of stages of the compressor and the expander.

[0091] In an embodiment of the present application, the generating module 300 is further configured to identify a target function of the configuration optimization model; determine target configuration parameters of the advanced adiabatic compressed air energy storage based on a solution of the target function of the configuration optimization model; and configure parameters of the advanced adiabatic compressed air energy storage by using the target configuration parameters.

[0092] In an embodiment of the present application, the target function of the configuration optimization model is:

[0093]

[0094] wherein, F inv represents the investment cost of the AA-CAES, F opr represents the operation cost of the AA-CAES, r represents the discount rate of the AA-CAES, L represents the operation life of the AA-CAES, Z c represents the investment cost of the compressor, Z e represents the investment cost of the turbine, S represents the total number of scenarios, T represents the total number of time periods, represents the probability of the scenario i, represents the time-of-use electricity price, represents the charging power of the AA-CAES at the time t, represents the discharging power of the AA-CAES at the time t.

[0095] It should be noted that the aforementioned explanation and description of the embodiment of the method for configuring parameters of the advanced adiabatic compressed air energy storage also applies to the embodiment of the device for configuring parameters of the advanced adiabatic compressed air energy storage, which will not be described here again.

[0096] The advanced adiabatic compressed air energy storage parameter configuration device provided by the embodiment of the application firstly constructs a structure model of an energy storage system to describe the connection and energy flow relationship between main components and each subsystem of the energy storage system; secondly, a target operation strategy of the system under expected operation conditions is obtained, the energy conversion path in the system and the thermal coupling mechanism between each energy form are analyzed in depth based on the strategy, the dynamic coupling relationship between the compression stage and the expansion stage is clarified, and on this basis, a compression-expansion coupled system model capable of describing the energy conversion process and the thermal coupling characteristics is established; finally, based on the established coupled system model, a configuration optimization model suitable for the multi-objective regulation and control requirements of the system is constructed, and by solving the optimization model, the key parameter configuration scheme of the advanced adiabatic compressed air energy storage system is determined, so that the comprehensive optimization of the embodiment of the application in the aspects of efficiency, flexibility and economy is realized. Thus, the problems of related technologies, such as complex structure, covering multiple components with nonlinear characteristics, involving electric-gas-thermal multi-energy coupling, and great difficulty in design and configuration, are solved.

[0097] Figure 4 The structure schematic diagram of the electronic device provided by the embodiment of the application is provided. The electronic device can include:

[0098] The memory 401, the processor 402 and the computer program stored in the memory 401 and executable on the processor 402.

[0099] The processor 402 implements the advanced adiabatic compressed air energy storage parameter configuration method provided in the above embodiment when executing the program.

[0100] Further, the vehicle further includes:

[0101] The communication interface 403 is used for communication between the memory 401 and the processor 402.

[0102] The memory 401 is used to store the computer program executable on the processor 402.

[0103] The memory 401 can include a high-speed RAM (Random Access Memory, Random Access Memory) memory, and can also include a non-volatile memory, such as at least one disk memory.

[0104] 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 with each other through a bus and complete communication between each other. The bus can be an ISA (Industry Standard Architecture) bus, a PCI (Peripheral Component) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. For the convenience of representation, Figure 4 Only one thick line is used in the figure to represent the bus, but it does not mean that there is only one bus or only one type of bus.

[0105] 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 complete communication between each other through an internal interface.

[0106] The processor 402 can be a CPU (Central Processing Unit) or an ASIC (Application Specific Integrated Circuit) or an integrated circuit configured to implement one or more embodiments of the present application.

[0107] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily for 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, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0108] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "N" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0109] Any procedural or methodological descriptions in flow charts or otherwise described herein can be understood to represent modules, segments or portions of code that include executable instructions for implementing custom logic functions or procedures that are one or N steps, and the scope of the preferred embodiments of the present application includes additional implementations that can perform the functions in the order discussed or illustrated, in substantially simultaneous manner, or in reverse order, as will be appreciated by those skilled in the art of the embodiments to which this application pertains.

[0110] It should be understood that portions of the present application can be realized with hardware, software, firmware or any combination thereof. In the above embodiments, the steps or methods can be realized with software or firmware stored in memory and executed by a suitable instruction execution system. As such, if realized with hardware and in another embodiment, any one or combination of the following technologies known in the art can be used: discrete logic circuitry having logic gates for implementing logic functions on data signals, application specific integrated circuits having appropriate combinational logic gates, programmable gate arrays, field programmable gate arrays, etc.

[0111] Those skilled in the art of the present technology can understand that all or part of the steps carried out by the method of the above-mentioned embodiments can be completed by a program instructing the relevant hardware, and the above-mentioned program can be stored in a computer readable storage medium, and when the program is executed, it includes one or a combination of the steps of the method embodiments.

[0112] Although the embodiments of the present application have been shown and described above, it should be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above-mentioned embodiments within the scope of the present application.

Claims

1. An advanced adiabatic compressed air energy storage parameter configuration method, characterized in that, The method comprises the following steps: establishing a structure model of the advanced adiabatic compressed air energy storage; obtaining a target operation strategy of the structure model, analyzing internal energy conversion relationship and internal thermal coupling relationship of the structure model based on the target operation strategy, and establishing a compression and expansion coupling system model of the advanced adiabatic compressed air energy storage based on the internal energy conversion relationship and the internal thermal coupling relationship; generating a configuration optimization model of the advanced adiabatic compressed air energy storage according to the compression and expansion coupling system model, and configuring parameters of the advanced adiabatic compressed air energy storage by using the configuration optimization model.

2. The advanced adiabatic compressed air energy storage parametric configuration method of claim 1, wherein, The structure model comprises multiple compressors, expanders, heat exchangers, air storage tanks and heat storage tanks.

3. The advanced adiabatic compressed air energy storage parametric configuration method of claim 2, wherein, The target operation strategy comprises: in the air charging stage, air is sucked into the compressor and is lifted to a high pressure and high temperature state, heat energy is transferred to the heat fluid of the low temperature heat storage tank through the heat exchanger, the heat energy is deposited into the high temperature heat storage tank, and the high pressure air is stored into the air storage tank; in the air discharging stage, the high pressure air of the air storage tank is heated by the heat fluid of the high temperature heat storage tank through the heat exchanger, the heated air enters the expander to generate power, and the heat fluid circulates back to the low temperature heat storage tank as the pressure and temperature of the heated air decrease.

4. The advanced adiabatic compressed air energy storage parametric configuration method of claim 1, wherein, The establishing of the compression and expansion coupling system model of the advanced adiabatic compressed air energy storage based on the internal energy conversion relationship and the internal thermal coupling relationship comprises: obtaining a pressure constraint condition of the advanced adiabatic compressed air energy storage; determining a thermal coupling characteristic relationship of compression and expansion according to the internal energy conversion relationship and the internal thermal coupling relationship, taking the pressure constraint condition as a constraint; establishing the compression and expansion coupling system model according to the thermal coupling characteristic relationship.

5. The advanced adiabatic compressed air energy storage parametric configuration method of claim 1 or 4, wherein, The internal thermal coupling relationship represents the characteristic relationship of the compressor and the expander, and the internal energy conversion relationship represents the energy conversion relationship of the heat exchanger and the heat storage tank.

6. The advanced adiabatic compressed air energy storage parametric configuration method of claim 4, wherein, The compression and expansion coupling system model is: wherein, and Tin,i and Tout,i represent the inlet temperature and the outlet temperature of the ith expander, respectively, and Tin,i and Tout,i represent the inlet temperature and the outlet temperature of the ith expander, respectively; and βi and βi represent the isentropic efficiency of the ith stage of compressor and expander, respectively; i β represents the compression ratio or the expansion ratio; γ i is a temperature function; HTF (Heat Transfer Fluid), mHTF represents the mass flow rate of the heat transfer fluid; T tes,high-temp and T tes,low-temp T and T represent the temperature of the high-temperature thermal energy storage system and the low-temperature thermal energy storage system, respectively; ε represents the heat exchange efficiency of the heat exchanger, cp represents the specific heat capacity of air; P c and P e P and P represent the charging power of the compression process and the discharging power of the expansion process, respectively; p i p represents the pressure of each stage, p env p represents the ambient pressure; N c and N e N and N represent the number of stages of the compressor and the expander, respectively.

7. The advanced adiabatic compressed air energy storage parametric configuration method of claim 1, wherein, The configuration of the parameters of the advanced adiabatic compressed air energy storage by using the configuration optimization model comprises: identifying a target function of the configuration optimization model; determining a target configuration parameter of the advanced adiabatic compressed air energy storage based on a solution of the target function of the configuration optimization model; configuring the parameters of the advanced adiabatic compressed air energy storage by using the target configuration parameter.

8. The advanced adiabatic compressed air energy storage parametric configuration method of claim 7, wherein, The target function of the configuration optimization model is: where F inv represents the AA-CAES investment cost, F opr represents the AA-CAES operation cost, r represents the AA-CAES discount rate, l represents the AA-CAES operation life, Z c represents the compressor investment cost, Z e represents the turbine investment cost, S represents the total number of scenarios, T represents the total number of time periods, represents the probability of scenario i, represents the time-of-use electricity price, represents the charging power of AA-CAES at time t, represents the discharging power of AA-CAES at time t.

9. An advanced adiabatic compressed air energy storage parameter configuration device, characterized by, comprises: a construction module for establishing a structure model of the advanced adiabatic compressed air energy storage; an obtaining module for obtaining a target operation strategy of the structure model, analyzing internal energy conversion relationship and internal thermal coupling relationship of the structure model based on the target operation strategy, and establishing a compression and expansion coupling system model of the advanced adiabatic compressed air energy storage based on the internal energy conversion relationship and the internal thermal coupling relationship; a generating module for generating a configuration optimization model of the advanced adiabatic compressed air energy storage according to the compression and expansion coupling system model, and configuring parameters of the advanced adiabatic compressed air energy storage by using the configuration optimization model.

10. An electronic device, comprising: comprises: Memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the advanced adiabatic compressed air energy storage parameter configuration method of any one of claims 1-7.

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