Flexible energy storage centralized deployment site selection method and device, electronic equipment and storage medium

Abstract

The invention belongs to the technical field of energy storage, and discloses a flexible energy storage centralized deployment site selection method and device, electronic equipment and a storage medium. The method comprises the following steps: acquiring flexible energy storage centralized deployment basic data; according to flexible energy storage centralized deployment basic data, determining a flexible energy storage power demand and capacity demand sequence and an energy storage module number sequence of a power supply station jurisdiction; and determining a flexible energy storage centralized deployment site based on the flexible energy storage power demand and capacity demand sequence and the energy storage module number sequence of the area under administration of the power supply station and a pre-established flexible energy storage centralized deployment site selection model. According to the flexible energy storage system oriented to the distributed application, on the premise of distributed energy storage application requirements, geographic information and power grid information are integrated, centralized application site selection optimization of flexible energy storage in a power grid is achieved, and the comprehensive efficiency of the flexible energy storage distributed application is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy storage, and particularly relates to a method, device, electronic device, and storage medium for centralized deployment and site selection of flexible energy storage. Background Art

[0002] As of the end of 2024, the installed capacity of new energy power generation in China, including wind power, solar power generation, and biomass power generation, reached 1.45 billion kilowatts, exceeding the installed capacity of thermal power for the first time. The new power system features a high proportion of renewable energy and a high proportion of power electronic devices. The role of new energy storage in promoting the development and consumption of new energy, improving the safe and stable operation of the system, and serving users' flexible and efficient energy use has become increasingly significant. The applications of energy storage systems include centralized applications and decentralized applications. Centralized energy storage systems are usually deployed on the power generation side or the grid side, while decentralized energy storage systems are mainly deployed on the user side or the distribution grid side. However, the existing deployment scenarios of energy storage systems are relatively fixed, unable to fully utilize the comprehensive regulation capabilities of energy storage systems, and there is a problem of low comprehensive utilization hours.

[0003] With the progress of energy storage technology and the improvement of standardization, it is possible to provide for the centralized and decentralized application of energy storage. By sharing centralized energy storage resources and flexibly arranging energy storage cabinets and battery modules that can be disassembled and assembled through normal configuration, the energy storage modules of the centralized energy storage power station can be shared and leased during the energy storage demand period of the distribution area, enhancing the comprehensive efficiency of energy storage resources. Facing the energy storage application needs of numerous distribution areas and potential grid connection nodes of centralized energy storage power stations, it is necessary to solve the problem of flexible centralized deployment and site selection of energy storage that comprehensively considers the grid structure, centralized and decentralized application modes of energy storage. Summary of the Invention

[0004] The purpose of the present invention is to provide a method, device, electronic device, and storage medium for centralized deployment and site selection of flexible energy storage, so as to solve the technical problem in the prior art that mainly focuses on the centralized application of energy storage power stations or the decentralized application of mobile energy storage, unable to fully utilize the comprehensive regulation capabilities of energy storage systems, and having a low comprehensive utilization hours.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: In the first aspect, the present invention provides a method for centralized deployment and site selection of flexible energy storage, including: Obtaining the basic data for centralized deployment of flexible energy storage; Determining the flexible energy storage power demand and capacity demand sequence, and the energy storage module number sequence in the jurisdiction of the power supply station according to the basic data for centralized deployment of flexible energy storage; Based on the flexible energy storage power demand and capacity demand sequence, the energy storage module number sequence in the jurisdiction of the power supply station, and a pre-established centralized deployment and site selection model for flexible energy storage, determining the centralized deployment site of flexible energy storage.

[0006] A further improvement of the present invention lies in that: in the step of obtaining the basic data for centralized deployment of flexible energy storage, the obtained basic data for centralized deployment of flexible energy storage includes: power grid information data, geographical information data, substation area information data, flexible energy storage information data, and flexible energy storage application utility data.

[0007] A further improvement of the present invention lies in that the power grid information data includes the names of candidate sites for centralized deployment of flexible energy storage, the names of power supply stations, and the names of substations within the jurisdiction of the power supply stations. The geographical information data includes the distance matrix between the candidate sites for centralized deployment of flexible energy storage and the power supply stations, the distance matrix between the power supply stations, the distance matrix between the power supply stations and the substations within their jurisdiction, and the distance matrix between the substations within the jurisdiction of the power supply stations. The substation area information data includes the load data, voltage data, rated capacity, and application mode of the substations within the jurisdiction of the power supply stations. The flexible energy storage information data includes the scale of the energy storage module and the power capacity deviation. The flexible energy storage application utility data includes the utility factor for centralized application of energy storage, the utility factor for decentralized application of energy storage, and the utility factor for decentralized application of flexible energy storage in the jurisdiction of the power supply stations.

[0008] A further improvement of the present invention lies in that the step of determining the power demand and capacity demand sequence of flexible energy storage in the jurisdiction of the power supply station and the sequence of the number of energy storage modules according to the basic data for centralized deployment of flexible energy storage specifically includes: Establish a flexible energy storage operation model based on the substation area information, calculate the power demand and capacity demand sequence of flexible energy storage in the substation area, and determine the power demand and capacity demand sequence of flexible energy storage in the jurisdiction of the power supply station and the sequence of the number of energy storage modules. Among them, the flexible energy storage operation mathematical model is as follows:

[0009] In the formula, is the substation area number; is the time interval number; is the sampling time point; is the sampling time interval; is the charging and discharging operation power of the flexible energy storage; is the power capacity factor of the flexible energy storage; is the energy conversion efficiency of the flexible energy storage; is the load demand of the substation area; is the rated capacity of the substation area; , are the upper and lower limits of the voltage of the substation area; is the voltage of the substation area; is the voltage-active sensitivity of the substation area; The power demand and capacity demand sequence of flexible energy storage in the substation area is specifically:

[0010] In the formula, is the flexible energy storage power demand of the substation area; is the flexible energy storage capacity demand of the substation area; is the number of time intervals; The calculation method for calculating the flexible energy storage power demand sequence, capacity demand sequence, and energy storage module number sequence of the power supply station jurisdiction according to the flexible energy storage power demand and capacity demand sequences of the substation area, the scale of the energy storage module, and the power capacity deviation range is as follows:

[0011] In the formula, and are the power supply station number and the number of power supply stations respectively; and and are the flexible energy storage power demand sequence, capacity demand sequence, and energy storage module number sequence of the power supply station jurisdiction respectively; and are the power and capacity of the energy storage module respectively; and are the set energy storage power demand deviation and capacity demand deviation.

[0012] A further improvement of the present invention lies in: the step of determining the centralized deployment site of flexible energy storage based on the flexible energy storage power demand and capacity demand sequences of the power supply station jurisdiction, the energy storage module number sequence, and the pre-established flexible energy storage centralized deployment site selection model specifically includes: determining the flexible energy storage decentralized application time sequence according to the flexible energy storage power demand and capacity demand sequences of the power supply station jurisdiction, the energy storage module number sequence, and the flexible energy storage decentralized application requirements; considering the geographic information data and power grid information data, combining the centralized and decentralized application requirements of flexible energy storage, establishing and solving the flexible energy storage centralized deployment site selection model, and determining the centralized deployment site of flexible energy storage.

[0013] A further improvement of the present invention lies in: the step of determining the flexible energy storage decentralized application time sequence according to the flexible energy storage power demand and capacity demand sequences of the power supply station jurisdiction, the energy storage module number sequence, and the flexible energy storage decentralized application requirements specifically includes: Establishing a flexible energy storage utility maximization model according to the set centralized energy storage application utility factor, decentralized energy storage application utility factor, and decentralized energy storage application transfer factor, and determining the flexible energy storage decentralized application time sequence (the occurrence time of flexible energy storage decentralized application and the number of energy storage modules):

[0014] In the formula, The time for flexible energy storage to shift from centralized application to decentralized application; The time for flexible energy storage to shift from decentralized application to centralized application; , , They are the utility factor of flexible energy storage in decentralized application, the transfer factor of centralized and decentralized application, and the utility factor of flexible energy storage in centralized application respectively; The number of modules for flexible energy storage to shift from centralized application to decentralized application; The scale of the centralized energy storage power station.

[0015] A further improvement of the present invention lies in: considering geographical information data and power grid information data, combining the requirements of centralized and decentralized applications of flexible energy storage, establishing and solving a centralized deployment site selection model for flexible energy storage, and determining the steps of the centralized deployment site of flexible energy storage, specifically including: taking the time series of centralized and decentralized applications of flexible energy storage as the calculation unit, according to the utility factor of decentralized application of flexible energy storage in the jurisdiction of the power supply station, combining the demand for the number of flexible energy storage modules in the jurisdiction of the power supply station during the decentralized application time interval, allocating the number of modules for flexible energy storage to shift from centralized application to decentralized application among the jurisdictions of the power supply stations, establishing a centralized deployment site selection model for flexible energy storage, calculating the objective function value of potential sites for centralized deployment of the energy storage system, and selecting the site with the minimum objective function value as the centralized deployment site of flexible energy storage; The centralized deployment site selection model for flexible energy storage is:

[0016] In the formula, is the set of power supply stations; is the potential site for centralized deployment of the energy storage system and the power supply station the distance between them; is the power supply station and the power supply station the distance between them; is the potential site for centralized deployment of the energy storage system to the power supply station the flow of energy storage modules; is the power supply station to the power supply station the flow of energy storage modules; is the power supply station in the time interval the number of decentralized application modules of flexible energy storage.

[0017] In the second aspect, the present invention provides a device for centralized deployment site selection of flexible energy storage, including: An acquisition module for acquiring basic data for centralized deployment of flexible energy storage; An analysis module, configured to determine a flexible energy storage power demand and a capacity demand sequence of a power supply station jurisdiction and a sequence of the number of energy storage modules according to the basic data of flexible energy storage centralized deployment; A site selection module, configured to determine a centralized deployment site of flexible energy storage based on the flexible energy storage power demand and capacity demand sequence of the power supply station jurisdiction, the sequence of the number of energy storage modules, and a pre-established flexible energy storage centralized deployment site selection model.

[0018] In a third aspect, the present invention provides an electronic device, including a processor and a memory, where the processor is configured to execute a computer program stored in the memory to implement the flexible energy storage centralized deployment site selection method.

[0019] In a fourth aspect, the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores at least one instruction, and when the at least one instruction is executed by a processor, the flexible energy storage centralized deployment site selection method is implemented.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a method for selecting a centralized deployment site for flexible energy storage, including: obtaining the basic data for the centralized deployment of flexible energy storage; determining the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence for the jurisdiction of the power supply station according to the basic data for the centralized deployment of flexible energy storage; and determining the centralized deployment site for flexible energy storage based on the flexible energy storage power demand and capacity demand sequences, the energy storage module number sequence for the jurisdiction of the power supply station, and a pre-established model for selecting the centralized deployment site for flexible energy storage. The present invention is directed to a flexible energy storage system for decentralized applications. Based on the premise of decentralized energy storage application requirements, it comprehensively considers geographical information, power grid information, etc., and proposes a method for selecting a centralized deployment site for flexible energy storage, realizing the optimization of the centralized application site selection of flexible energy storage in the power grid and enhancing the comprehensive efficiency of the decentralized application of flexible energy storage. The present invention is based on power grid information data, geographical information data, substation area information data, and energy storage information data to optimize the operation of flexible energy storage in the substations within the jurisdiction of the power supply station, calculate the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence for the jurisdiction of the power supply station, and comprehensively consider the potential sites for the centralized deployment of the energy storage system and the flexible energy storage demand in the jurisdiction of the power supply station to determine the time series of the decentralized application of flexible energy storage, realizing the optimization of the centralized deployment site selection of flexible energy storage. Traditional fixed energy storage has a large floor space, inconvenient installation and implementation, and low utilization efficiency; mobile energy storage vehicles have a long moving distance, high cost, large vehicle losses, and high requirements for roads, etc., making it difficult to widely promote and deploy in rural areas. The present invention adopts a design of flexible energy storage cabinets and flexible battery modules that can be disassembled and assembled, and shares and leases the modules of a centralized energy storage power station during short-term heavy overload periods (when the energy storage regulation demand is high) in the substation area to improve the comprehensive utilization rate of energy storage. The present invention is directed to the energy storage application requirements of numerous distribution substations and potential grid connection nodes of centralized energy storage power stations, and solves the problem of selecting a centralized deployment site for flexible energy storage that comprehensively considers the power grid structure, centralized and decentralized application modes of energy storage, can give full play to the comprehensive regulation ability of the energy storage system, and effectively improve the comprehensive utilization hours.

[0021] The present invention provides a device for selecting a centralized deployment site for flexible energy storage, which receives power grid information data, geographical information data, substation area information data, energy storage information data, etc., optimizes the operation of flexible energy storage in the substations within the jurisdiction of the power supply station, analyzes the flexible energy storage power demand and capacity demand sequences in the substation area, calculates the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence for the jurisdiction of the power supply station, comprehensively considers the potential sites for the centralized deployment of the energy storage system and the flexible energy storage demand in the jurisdiction of the power supply station to determine the time series of the decentralized application of flexible energy storage, and realizes the optimization of the centralized deployment site selection of flexible energy storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings forming a part of this specification are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings: Figure 1A schematic diagram of a process for selecting a site for centralized deployment of flexible energy storage according to an embodiment of the present invention; Figure 2 This is a flow chart of a method for selecting a site for centralized deployment of flexible energy storage according to another embodiment of the present invention; Figure 3 This is a structural block diagram of a flexible energy storage centralized deployment site selection device according to an embodiment of the present invention; Figure 4 This is a structural block diagram of an electronic device of the present invention. DETAILED DESCRIPTION

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.

[0024] The following detailed description is an exemplary description and is intended to provide further detailed description of the present invention. Unless otherwise indicated, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present invention belongs. The terms used in the present invention are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention.

[0025] like Figure 1 As shown, a method for selecting a site for centralized deployment of flexible energy storage is provided in an embodiment of the present invention, including: first, obtaining basic data for centralized deployment of flexible energy storage, analyzing and clarifying potential sites and power supply areas for centralized deployment of energy storage systems; second, calculating a flexible energy storage demand sequence; then, optimizing the site selection for centralized deployment of flexible energy storage; and finally, realizing distributed application and testing of flexible energy storage.

[0026] Specifically, an embodiment of the present invention provides a method for selecting a site for centralized deployment of flexible energy storage, comprising the following steps: S1: Basic data acquisition and analysis for centralized deployment of flexible energy storage: Obtain basic data for centralized deployment of flexible energy storage, including but not limited to grid information data of the name of the candidate site for centralized deployment of flexible energy storage, the name of the power supply station, and the name of the substation within the jurisdiction of the power supply station; geographic information data of the distance matrix between the candidate site for centralized deployment of flexible energy storage and the power supply station, the distance matrix between the power supply stations, the distance matrix between the power supply station and the substations within the jurisdiction of the power supply station, and the distance matrix between the substations within the jurisdiction of the power supply station; substation information data of the load data, voltage data, rated capacity, and application mode of the substations within the jurisdiction of the power supply station; flexible energy storage information data of the scale and power capacity deviation of the energy storage module; and flexible energy storage application utility data of the centralized application utility factor of the energy storage, the distributed application utility factor of the energy storage, and the distributed application utility factor of the flexible energy storage within the jurisdiction of the power supply station.

[0027] Analyze the basic data for the centralized deployment of flexible energy storage, specifically including: analyzing and clarifying the potential site addresses for the centralized deployment of energy storage systems and the jurisdiction areas of power supply stations based on power grid information data and geographic information data. In a specific implementation, the distance parameter is mainly used as the judgment basis. For example, if the distance between a certain power supply station and other relatively concentrated power supply stations is much greater than the preset value, then the power supply station with a far distance is excluded; or if the distance between a certain potential site address and the concentrated power supply stations is much greater than the preset value, then this power supply station is excluded. The boundary distance can be set for the distance, or it can be determined according to experience.

[0028] S2: Analysis of flexible energy storage demand sequence: A method for analyzing the flexible energy storage demand sequence, which establishes a flexible energy storage operation model based on the load data, voltage data, rated capacity, and application mode of the substations within the jurisdiction area of the power supply station, optimizes the flexible energy storage operation of the substations within the jurisdiction area of the power supply station, calculates the flexible energy storage power demand and capacity demand sequences of the substations, and determines the flexible energy storage power demand, capacity demand sequence, and energy storage module number sequence of the jurisdiction area of the power supply station.

[0029] The method for optimizing the flexible energy storage operation of the substations within the jurisdiction area of the power supply station aims to minimize the flexible energy storage scale of the substations, considers the rated capacity constraint of the substations, the voltage of the substations, and the charge-discharge balance constraint of the flexible energy storage, and optimizes the charge-discharge operation power of the flexible energy storage. The mathematical model of the flexible energy storage operation is as follows:

[0030] In the formula, is the substation number; is the time interval number; is the sampling time point; is the sampling time interval; is the charge-discharge operation power of the flexible energy storage; is the flexible energy storage power capacity factor, and the value here is less than 1; is the energy conversion efficiency of the flexible energy storage; is the load demand of the substation; is the rated capacity of the substation; and are the upper and lower limits of the substation voltage; is the voltage of the substation; is the voltage-active power sensitivity of the substation. Sgn is a sign operation. Taking sgn(x) as an example: when x>0, sgn(x)=1; when x=0, sgn(x)=0; when x<0, sgn(x)=-1.

[0031] The calculation method for the flexible energy storage power demand and capacity demand sequences of the substations calculates the energy storage power demand and capacity demand for each time interval based on the charge-discharge operation power of the flexible energy storage of the substations, and forms the flexible energy storage power demand and capacity demand sequences of the substations. Specifically:

[0032] Wherein, is the flexible energy storage power demand of the substation area; is the flexible energy storage capacity demand of the substation area; is the number of time intervals.

[0033] The calculation methods of the flexible energy storage power demand, capacity demand sequence, and energy storage module number sequence in the jurisdiction of the power supply station are calculated according to the flexible energy storage power demand and capacity demand sequence of the substation area, the scale of the energy storage module, and the power capacity deviation range. The calculation methods are as follows:

[0034] Wherein, and are the power supply station number and the number of power supply stations respectively; and and are the flexible energy storage power demand sequence, capacity demand sequence, and energy storage module number demand sequence in the jurisdiction of the power supply station respectively; and are the power and capacity of the energy storage module respectively; and are the set energy storage power demand deviation and capacity demand deviation.

[0035] S3: Optimization of the centralized deployment location of flexible energy storage: The optimization method for the centralized deployment location of flexible energy storage determines the time series of the distributed application of flexible energy storage according to the flexible energy storage power demand and capacity demand sequence, and the flexibility energy storage distributed application demand of the energy storage module number sequence in the jurisdiction of the power supply station; considering the geographical information data and grid information data, combining the centralized application and distributed application requirements of flexible energy storage, establishing a flexible energy storage centralized deployment location model, and using optimization algorithms such as genetic algorithms, particle swarm algorithms, and intelligent algorithms to solve and optimize the centralized deployment site of flexible energy storage.

[0036] The determination method of the time series of the distributed application of flexible energy storage is to establish a flexible energy storage utility maximization model according to the set centralized application utility factor, distributed application utility factor, and transfer factor of the distributed application of flexible energy storage, and determine the time series of the distributed application of flexible energy storage (the occurrence time and the number of energy storage modules of the distributed application of flexible energy storage) as follows:

[0037] Wherein, is the time when the flexible energy storage changes from centralized application to distributed application; is the time when the flexible energy storage changes from distributed application to centralized application; and , are the utility factor for flexible energy storage in decentralized applications, the transfer factor for decentralized applications, and the utility factor for centralized applications, respectively; is the number of modules for flexible energy storage to switch from centralized application to decentralized application; is the scale of the centralized energy storage power station.

[0038] The optimization method for the centralized deployment site of flexible energy storage takes the time series of flexible energy storage in decentralized applications as the calculation unit. According to the utility factor of flexible energy storage in decentralized applications in the power supply station area, combined with the demand for the number of flexible energy storage modules in the power supply station area during the decentralized application time interval, the number of modules for flexible energy storage to switch from centralized application to decentralized application is allocated among the power supply station areas, and a centralized deployment site selection model for flexible energy storage is established. The objective function value of the potential site for centralized deployment of the energy storage system is calculated, and the site with the minimum objective function value is selected as the centralized deployment site for flexible energy storage.

[0039] The centralized deployment site selection model for flexible energy storage is:

[0040] In the formula, is the set of power supply stations; is the potential site for centralized deployment of the energy storage system and the power supply station the distance between; is the power supply station and the power supply station the distance between; is the potential site for centralized deployment of the energy storage system to the power supply station the flow of energy storage modules; is the power supply station to the power supply station the flow of energy storage modules; is the power supply station in the time interval the number of decentralized energy storage application modules.

[0041] S4: Decentralized application and testing of flexible energy storage: The decentralized application and testing of flexible energy storage include, but are not limited to, the design of standardized interfaces for decentralized applications of flexible energy storage, the safety risk assessment and testing of energy storage modules, and the assessment of the available capacity of energy storage modules, ensuring that the energy storage modules are in a normal state and realizing the plug-and-play between centralized applications and decentralized applications of flexible energy storage; the purpose is the plug-and-play of energy storage modules and the unification of the interfaces between centralized applications and decentralized applications. Safety testing and capacity testing can refer to relevant standard specifications, such as "Code for Safety Risk Assessment of Electrochemical Energy Storage Power Stations" and "Lithium-Ion Batteries for Power Energy Storage".

[0042] Please refer to Figure 2 As shown, an embodiment of the present invention provides a method for selecting a location for centralized deployment of flexible energy storage, including: S100. Obtain the basic data for centralized deployment of flexible energy storage; S200. According to the basic data for centralized deployment of flexible energy storage, determine the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station; S300. Based on the flexible energy storage power demand and capacity demand sequences, the energy storage module number sequence in the jurisdiction of the power supply station, and a pre-established location selection model for centralized deployment of flexible energy storage, determine the location of the centralized deployment station for flexible energy storage.

[0043] In a specific embodiment, in the step of obtaining the basic data for centralized deployment of flexible energy storage, the obtained basic data for centralized deployment of flexible energy storage includes: power grid information data, geographical information data, substation area information data, flexible energy storage information data, and flexible energy storage application utility data.

[0044] In a specific embodiment, the power grid information data includes the names of the candidate sites for centralized deployment of flexible energy storage, the names of the power supply stations, and the names of the substations in the jurisdiction of the power supply stations; The geographical information data includes the distance matrix between the candidate sites for centralized deployment of flexible energy storage and the power supply stations, the distance matrix between the power supply stations, the distance matrix between the power supply stations and the substations in their jurisdictions, and the distance matrix between the substations in the jurisdiction of the power supply stations; The substation area information data includes the load data, voltage data, rated capacity, and application mode of the substations in the jurisdiction of the power supply stations; The flexible energy storage information data includes the scale of the energy storage module and the power capacity deviation; The flexible energy storage application utility data includes the utility factor for centralized application of energy storage, the utility factor for decentralized application of energy storage, and the utility factor for decentralized application of flexible energy storage in the jurisdiction of the power supply station.

[0045] In a specific embodiment, the step of, according to the basic data for centralized deployment of flexible energy storage, determining the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station specifically includes: Establish a flexible energy storage operation model according to the substation area information, calculate the flexible energy storage power demand and capacity demand sequences of the substations, and determine the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station; Among them, the flexible energy storage operation mathematical model is as follows:

[0046] In the formula, is the substation number; is the time interval number; is the sampling time point; is the sampling time interval; is the flexible energy storage charge and discharge operating power; is the flexible energy storage power capacity factor; is the flexible energy storage energy conversion efficiency; is the load demand of the distribution area; is the rated capacity of the distribution area; and are the upper and lower limits of the distribution area voltage; is the distribution area voltage; is the voltage-active power sensitivity of the distribution area; The flexible energy storage power demand and capacity demand sequences of the distribution area are specifically:

[0047] In the formula, is the flexible energy storage power demand of the distribution area; is the flexible energy storage capacity demand of the distribution area; is the number of time intervals; The calculation method for calculating the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence of the power supply station jurisdiction according to the flexible energy storage power demand and capacity demand sequences of the distribution area, the energy storage module scale and the power capacity deviation range is as follows:

[0048] In the formula, and are the power supply station number and the number of power supply stations respectively; and and are the flexible energy storage power demand sequence, capacity demand sequence and energy storage module number sequence of the power supply station jurisdiction respectively; and are the power and capacity of the energy storage module respectively; and are the set energy storage power demand deviation and capacity demand deviation.

[0049] In a specific embodiment, the steps of determining the flexible energy storage centralized deployment site based on the flexible energy storage power demand and capacity demand sequences, the energy storage module number sequence of the power supply station jurisdiction and the pre-established flexible energy storage centralized deployment site selection model specifically include: determining the flexible energy storage decentralized application time sequence according to the flexible energy storage power demand and capacity demand sequences and the flexible energy storage decentralized application requirements of the energy storage module number sequence of the power supply station jurisdiction; considering the geographic information data and power grid information data, combining the flexible energy storage centralized application and decentralized application requirements, establishing and solving the flexible energy storage centralized deployment site selection model, and determining the flexible energy storage centralized deployment site.

[0050] In a specific embodiment, the step of determining the flexible energy storage decentralized application time series according to the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station specifically includes: Establish a flexible energy storage utility maximization model according to the set centralized energy storage application utility factor, decentralized energy storage application utility factor, and energy storage decentralized application transfer factor, and determine the flexible energy storage decentralized application time series (the occurrence time of flexible energy storage decentralized application and the number of energy storage modules):

[0051] In the formula, is the time when the flexible energy storage changes from centralized application to decentralized application; is the time when the flexible energy storage changes from decentralized application to centralized application; , , are respectively the decentralized energy storage application utility factor, decentralized application transfer factor, and centralized energy storage application utility factor of the flexible energy storage; is the number of modules when the flexible energy storage changes from centralized application to decentralized application; is the scale of the centralized energy storage power station.

[0052] In a specific embodiment, the step of considering geographical information data and power grid information data, combining the centralized and decentralized application requirements of flexible energy storage, establishing a flexible energy storage centralized deployment site selection model and solving it to determine the flexible energy storage centralized deployment site specifically includes: Using the flexible energy storage decentralized application time series as the calculation unit, according to the flexible energy storage decentralized application utility factor in the jurisdiction of the power supply station, and combining the flexible energy storage module number requirements in the jurisdiction of the power supply station during the decentralized application time interval, allocate the number of modules when the flexible energy storage changes from centralized application to decentralized application among the power supply stations in the jurisdiction, establish a flexible energy storage centralized deployment site selection model, calculate the objective function value of the potential sites for centralized deployment of the energy storage system, and select the site with the minimum objective function value as the flexible energy storage centralized deployment site; The flexible energy storage centralized deployment site selection model is:

[0053] In the formula, is the set of power supply stations; is the potential site for centralized deployment of the energy storage system the distance between and the power supply station is the power supply station the distance between and the power supply station is the potential site for centralized deployment of the energy storage system to the power supply station The number of energy storage modules in the flow; For the power supply station To the power supply station The number of energy storage modules in the flow; For the power supply station In the time interval The number of decentralized energy storage application modules.

[0054] Please refer to Figure 3 As shown, the embodiment of the present invention provides a flexible energy storage centralized deployment site selection device, including: An acquisition module, configured to acquire basic data for flexible energy storage centralized deployment; An analysis module, configured to determine the flexible energy storage power demand and capacity demand sequence and the energy storage module number sequence in the power supply station jurisdiction according to the basic data for flexible energy storage centralized deployment; A site selection module, configured to determine the flexible energy storage centralized deployment site based on the flexible energy storage power demand and capacity demand sequence, the energy storage module number sequence in the power supply station jurisdiction, and a pre-established flexible energy storage centralized deployment site selection model.

[0055] Please refer to Figure 4 As shown, the embodiment of the present invention provides an electronic device 100 for implementing a flexible energy storage centralized deployment site selection method; the electronic device 100 includes a memory 101, at least one processor 102, a computer program 103 stored in the memory 101 and executable on the at least one processor 102, and at least one communication bus 104.

[0056] The memory 101 can be used to store the computer program 103. The processor 102 realizes the steps of the flexible energy storage centralized deployment site selection method described in the embodiment by running or executing the computer program stored in the memory 101 and calling the data stored in the memory 101. The memory 101 may mainly include a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the electronic device 100 (such as audio data, etc.). In addition, the memory 101 may include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, at least one magnetic disk storage device, a flash device, or other non-volatile solid-state storage devices.

[0057] The at least one processor 102 may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The processor 102 may be a microprocessor or the processor 102 may also be any conventional processor, etc. The processor 102 is the control center of the electronic device 100, and connects various parts of the entire electronic device 100 through various interfaces and lines.

[0058] The memory 101 in the electronic device 100 stores multiple instructions to implement a flexible energy storage centralized deployment site selection method. The processor 102 can execute the multiple instructions to achieve: Obtain the basic data for flexible energy storage centralized deployment; According to the basic data for flexible energy storage centralized deployment, determine the flexible energy storage power demand and capacity demand sequence, and the energy storage module number sequence in the power supply station area; Based on the flexible energy storage power demand and capacity demand sequence, the energy storage module number sequence in the power supply station area, and a pre-established flexible energy storage centralized deployment site selection model, determine the flexible energy storage centralized deployment site.

[0059] If the modules / units integrated in the electronic device 100 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, to implement all or part of the processes in the above method embodiments of the present invention, it can also be completed by a computer program instructing related hardware. The computer program can be stored in a computer-readable storage medium. When the computer program is executed by the processor, the steps of the above method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in the form of source code, object code, executable file, or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, and read-only memory (ROM, Read-Only Memory).

[0060] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) that contain computer-usable program code.

[0061] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to the embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, as well as the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate means for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or blocks or the combination of blocks.

[0062] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in Figure 1 one or more of the flows Figure 1 or blocks or the combination of blocks.

[0063] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in Figure 1 one or more of the flows Figure 1 or blocks or the combination of blocks.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present invention or make equivalent replacements, and any modification or equivalent replacement without departing from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A flexible energy storage centralized deployment site selection method, characterized in that, Including: Obtain the basic data for the centralized deployment of flexible energy storage; According to the basic data for the centralized deployment of flexible energy storage, determine the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station; Based on the flexible energy storage power demand and capacity demand sequences, the energy storage module number sequence in the jurisdiction of the power supply station, and the pre-established flexible energy storage centralized deployment site selection model, determine the site for the centralized deployment of flexible energy storage.

2. The flexible energy storage centralized deployment site selection method according to claim 1, characterized in that In the step of obtaining the basic data for the centralized deployment of flexible energy storage, the obtained basic data for the centralized deployment of flexible energy storage includes: power grid information data, geographic information data, substation area information data, flexible energy storage information data, and flexible energy storage application utility data.

3. The flexible energy storage centralized deployment site selection method according to claim 2, characterized in that The power grid information data includes the names of the candidate sites for the centralized deployment of flexible energy storage, the names of the power supply stations, and the names of the substations within the jurisdiction of the power supply stations; The geographic information data includes the distance matrix between the candidate sites for the centralized deployment of flexible energy storage and the power supply stations, the distance matrix between the power supply stations, the distance matrix between the power supply stations and the substations within their jurisdiction, and the distance matrix between the substations within the jurisdiction of the power supply stations; The substation area information data includes the load data, voltage data, rated capacity, and application mode of the substations within the jurisdiction of the power supply stations; The flexible energy storage information data includes the energy storage module scale and the power capacity deviation; The flexible energy storage application utility data includes the centralized energy storage application utility factor, the decentralized energy storage application utility factor, and the flexible energy storage decentralized application utility factor in the jurisdiction of the power supply station.

4. The flexible energy storage centralized deployment site selection method according to claim 2, wherein The step of determining the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station according to the basic data for the centralized deployment of flexible energy storage specifically includes: According to the substation area information, establish a flexible energy storage operation model, calculate the flexible energy storage power demand and capacity demand sequences of the substations, and determine the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station; Among them, the flexible energy storage operation mathematical model is as follows: Wherein, is the substation area number; is the time interval number; is the sampling time point; is the sampling time interval; is the flexible energy storage charge and discharge operating power; is the flexible energy storage power capacity factor; is the flexible energy storage energy conversion efficiency; is the substation area load demand; is the substation area rated capacity; 、 are the upper and lower limits of the substation area voltage; is the substation area voltage; is the voltage-active power sensitivity of the substation area; The flexible energy storage power demand and capacity demand sequences of the substations are specifically: In the formula, is the flexible energy storage power demand of the substation area; is the flexible energy storage capacity demand of the substation area; is the number of time intervals; The calculation method for calculating the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station according to the flexible energy storage power demand and capacity demand sequences of the substations, the energy storage module scale, and the power capacity deviation is as follows: In the formula, , are the power supply station number and the number of power supply stations respectively; , , are the flexible energy storage power demand sequence, capacity demand sequence, and energy storage module number sequence in the jurisdiction of the power supply station respectively; , are the power and capacity of the energy storage module respectively; , are the set energy storage power demand deviation and capacity demand deviation.

5. The flexible energy storage centralized deployment site selection method according to claim 1, characterized in that The step of determining the site for the centralized deployment of flexible energy storage based on the flexible energy storage power demand and capacity demand sequences, the energy storage module number sequence in the jurisdiction of the power supply station, and the pre-established flexible energy storage centralized deployment site selection model specifically includes: Determine the flexible energy storage decentralized application time sequence according to the flexible energy storage decentralized application requirements of the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station; Considering the geographic information data and the power grid information data, combined with the centralized and decentralized application requirements of flexible energy storage, establish and solve the flexible energy storage centralized deployment site selection model to determine the site for the centralized deployment of flexible energy storage.

6. The flexible energy storage centralized deployment site selection method according to claim 5, wherein The step of determining the flexible energy storage decentralized application time sequence according to the flexible energy storage decentralized application requirements of the flexible energy storage power demand and capacity demand sequences and the energy storage module number sequence in the jurisdiction of the power supply station specifically includes: Based on the set utility factor for centralized energy storage applications, the utility factor for decentralized energy storage applications, and the transfer factor for centralized and decentralized energy storage applications, a flexible energy storage utility maximization model is established to determine the time series of centralized and decentralized energy storage applications: Wherein, is the time for flexible energy storage to shift from centralized application to decentralized application; is the time for flexible energy storage to shift from decentralized application to centralized application; , , are the utility factor of decentralized application, the transfer factor of centralized and decentralized application, and the utility factor of centralized application of flexible energy storage, respectively; is the number of modules for flexible energy storage to shift from centralized application to decentralized application; is the scale of the centralized energy storage power station.

7. The flexible energy storage centralized deployment site selection method according to claim 5, characterized in that The steps of establishing and solving a flexible energy storage centralized deployment site selection model by considering geographic information data and power grid information data and combining the requirements of centralized and decentralized energy storage applications are as follows. Specifically, using the time series of centralized and decentralized energy storage applications as the calculation unit, based on the utility factor of decentralized energy storage applications in the power supply station area and combining the number of flexible energy storage module requirements in the power supply station area during the decentralized application time interval, the number of modules for converting flexible energy storage from centralized application to decentralized application is allocated among the power supply station areas, a flexible energy storage centralized deployment site selection model is established, the objective function value of potential sites for centralized deployment of the energy storage system is calculated, and the site with the minimum objective function value is selected as the centralized deployment site for flexible energy storage; The flexible energy storage centralized deployment site selection model is: In the formula, is the set of power supply stations, is the scale of the centralized energy storage power station; is the potential site for centralized deployment of the energy storage system and the power supply station distance between; is the power supply station and the power supply station distance between; is the potential site for centralized deployment of the energy storage system to the power supply station number of energy storage module flows; is the power supply station to the power supply station number of energy storage module flows; is the power supply station in the time interval number of decentralized application modules of energy storage.

8. Flexible energy storage centralized deployment site selection device, characterized in that, Including: An acquisition module for acquiring basic data for centralized deployment of flexible energy storage; An analysis module for determining the sequence of flexible energy storage power requirements and capacity requirements and the sequence of energy storage module numbers in the power supply station area based on the basic data for centralized deployment of flexible energy storage; A site selection module for determining the centralized deployment site of flexible energy storage based on the sequence of flexible energy storage power requirements and capacity requirements and the sequence of energy storage module numbers in the power supply station area and the pre-established flexible energy storage centralized deployment site selection model.

9. An electronic device, characterized in that, Including a processor and a memory, the processor is used to execute the computer program stored in the memory to implement the flexible energy storage centralized deployment site selection method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one instruction, and when the at least one instruction is executed by the processor, it implements the flexible energy storage centralized deployment site selection method according to any one of claims 1 to 7.

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