Construction method and device of heterogeneous energy storage station, electronic equipment and storage medium

Abstract

The invention relates to a heterogeneous energy storage station construction method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining the demand data of a to-be-combined heterogeneous energy storage station, and the basic data and operation data of each retired battery pack, so that the retired battery pack can be constructed according to the data and the operation data; determining the total capacity fading rate of each retired battery pack; determining a plurality of target decommissioned battery packs according to the basic data, the operation data, the demand data and the total capacity fading rate, and then combining the plurality of target decommissioned battery packs according to the set conditions to obtain a heterogeneous energy storage station; therefore, the target decommissioned battery pack which can be applied can be determined according to the use condition and the loss condition of each decommissioned battery pack and the demand data in the actual use scene, so that each heterogeneous energy storage station can meet the demand in the corresponding use scene, and the safety of the heterogeneous energy storage station in the use process is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage power stations, and in particular to a method, device, electronic equipment and storage medium for constructing a heterogeneous energy storage station. Background Art

[0002] With the increasing popularity of electric vehicles and the large-scale retirement of power batteries, the cascade utilization of retired power batteries will become a significant market growth point. Heterogeneous energy storage stations are built using retired power batteries from electric vehicles of different brands, varying degrees of age, and different structures. Heterogeneous energy storage stations address battery inconsistencies through technical means, enabling the compatible utilization of multiple battery types, thereby increasing the full lifecycle value of batteries and reducing the operating costs of power storage systems.

[0003] In existing technologies, heterogeneous energy storage stations are typically constructed using a fixed battery pack configuration. For example, the battery packs in a heterogeneous energy storage station are of the same type and capacity to meet market demand. However, since most retired power lithium batteries on the market have different specifications, usage conditions, and wear and tear, heterogeneous energy storage stations have different usage scenarios and different battery requirements. This can lead to excess or insufficient power in heterogeneous energy storage stations, which in turn poses certain safety risks.

[0004] Therefore, there is an urgent need to propose a method, device, electronic device and storage medium for constructing a heterogeneous energy storage station to solve the technical problem in the existing technology that a heterogeneous energy storage station cannot be manufactured according to the usage scenarios of the heterogeneous energy storage station and the actual situation of retired batteries, resulting in certain safety hazards in the heterogeneous energy storage station. Summary of the Invention

[0005] In view of this, it is necessary to provide a method, device, electronic device and storage medium for constructing a heterogeneous energy storage station to solve the technical problem in the existing technology that a heterogeneous energy storage station cannot be manufactured according to the usage scenarios of the heterogeneous energy storage station and the actual situation of retired batteries, resulting in certain safety hazards in the heterogeneous energy storage station.

[0006] In order to solve the above problems, in a first aspect, the present invention provides a method for constructing a heterogeneous energy storage station, comprising: Obtaining basic data and operating data for each retired battery pack, as well as demand data for the heterogeneous energy storage station to be combined; the demand data includes setting conditions; Determining a total capacity attenuation rate of each retired battery pack based on the basic data and the operating data; determining a plurality of target retired battery packs according to the basic data, the operating data, the demand data, and the total capacity decay rate; The multiple target retired battery packs are combined according to the setting conditions to obtain a heterogeneous energy storage station.

[0007] In one possible implementation, the demand data includes a target model; and before determining a plurality of target retired battery packs based on the basic data, the operating data, the demand data, and the total capacity decay rate, the method further includes: Classifying all retired battery packs according to the target model to determine a plurality of classified retired battery packs; The multiple classified retired battery packs are screened to obtain multiple updated retired battery packs.

[0008] In a possible implementation, screening the multiple classified retired battery packs to obtain multiple updated retired battery packs includes: Test each classified retired battery pack to obtain test data; Abnormal battery packs are eliminated from the multiple classified retired battery packs according to the detection data to obtain multiple updated retired battery packs.

[0009] In one possible implementation, the basic data includes initial capacity; the operating data includes current capacity and usage time; and determining the total capacity decay rate of each retired battery pack based on the basic data and the operating data includes: Obtaining an annual loss rate according to the initial capacity, the current capacity, and the usage time; Obtaining a total equivalent cycle number and a total cycle loss rate according to the initial capacity and the current capacity; The total capacity attenuation rate of each retired battery pack is obtained according to the annual loss rate, the total cycle loss rate, the usage time and the total equivalent cycle number.

[0010] In one possible implementation, the basic data further includes a battery attenuation coefficient; the operating data further includes a deep cycle life, a deep cycle capacity, a normal cycle capacity, an initial deep cycle number, and an initial normal cycle number; and obtaining a total equivalent cycle number and a total cycle loss rate based on the initial capacity and the current capacity includes: Obtaining a target deep cycle number according to the initial deep cycle number, the deep cycle capacity, and the battery attenuation coefficient; Obtaining a target normal cycle number according to the initial normal cycle number, the normal cycle capacity, and the battery attenuation coefficient; Obtaining a total equivalent cycle number according to the target deep cycle number and the target normal cycle number; According to the deep cycle life, the equivalent cycle loss rate is obtained; The total cycle loss rate is obtained according to the equivalent cycle loss rate for each time and the total number of equivalent cycles.

[0011] In a possible implementation, the demand data further includes a required capacity; and determining a plurality of target retired battery packs based on the basic data, the operating data, the demand data, and the total capacity decay rate includes: Obtaining a decay capacity according to the total capacity decay rate and the initial capacity of each retired battery pack; Obtaining a remaining capacity of each retired battery pack according to the initial capacity and the attenuated capacity; A plurality of retired battery packs are screened according to the required capacity and the remaining capacity to obtain a plurality of target retired battery packs.

[0012] In one possible implementation, the setting conditions include the arrangement and quantity of retired battery packs in the heterogeneous energy storage station to be combined; and combining the multiple target retired battery packs according to the setting conditions to obtain the heterogeneous energy storage station includes: Combining the multiple target retired battery packs according to the quantity to obtain multiple assembled battery packs; the sum of the remaining capacities of the multiple assembled battery packs is greater than or equal to the required capacity; and the number of the multiple assembled batteries is less than or equal to the quantity; The multiple assembled battery packs are installed according to the arrangement to obtain a heterogeneous energy storage station.

[0013] In a second aspect, the present invention further provides a device for constructing a heterogeneous energy storage station, comprising: A data acquisition module is used to obtain basic data and operating data of each retired battery pack, as well as demand data of the heterogeneous energy storage station to be combined; the demand data includes setting conditions; a decay rate calculation module, configured to determine a total capacity decay rate of each retired battery pack based on the basic data and the operating data; a battery determination module, configured to determine a plurality of target retired battery packs based on the basic data, the operating data, the demand data, and the total capacity decay rate; The battery combination module is used to combine the multiple target retired battery packs according to the setting conditions to obtain a heterogeneous energy storage station.

[0014] In a third aspect, an embodiment of the present invention discloses an electronic device, comprising: a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, the various steps of the above-mentioned embodiment of the method for constructing a heterogeneous energy storage station are implemented.

[0015] In a fourth aspect, an embodiment of the present invention discloses a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the computer program implements the various steps of the embodiment of the method for constructing a heterogeneous energy storage station.

[0016] The beneficial effects of the present invention are as follows: the demand data of the heterogeneous energy storage station to be combined and the basic data and operating data of each retired battery pack are obtained, so that the total capacity attenuation rate of each retired battery pack can be determined based on this data and the operating data; then, based on the basic data, the operating data, the demand data and the total capacity attenuation rate, multiple target retired battery packs are determined, and then the multiple target retired battery packs can be combined according to the setting conditions to obtain a heterogeneous energy storage station; thereby, it is possible to determine the target retired battery pack that can be applied based on the usage and consumption of each retired battery pack and the demand data in the actual usage scenario, so that each heterogeneous energy storage station can meet the needs of the corresponding usage scenario, thereby improving the safety of the use process of the heterogeneous energy storage station. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic flow chart of an embodiment of a method for constructing a heterogeneous energy storage station provided by the present invention; Figure 2 For the present invention Figure 1 A schematic flow chart of an embodiment of step S102; Figure 3 For the present invention Figure 2 A schematic flow chart of an embodiment of step S202; Figure 4 For the present invention Figure 1 A schematic flow chart of an embodiment of step S103; Figure 5 A schematic structural diagram of an embodiment of a device for constructing a heterogeneous energy storage station provided by the present invention; Figure 6 This is a schematic structural diagram of an embodiment of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0018] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, and are not used to limit the scope of the present invention.

[0019] like Figure 1 As shown, a specific embodiment of the present invention discloses a method for constructing a heterogeneous energy storage station, including: S101. Obtain basic data and operating data of each retired battery pack, as well as demand data of the heterogeneous energy storage station to be combined; the demand data includes setting conditions.

[0020] The method for constructing a heterogeneous energy storage station provided in the embodiment of the present application can be applied to a system for constructing a heterogeneous energy storage station, wherein the construction of the heterogeneous energy storage station can be based on a software system running on a terminal device. The terminal device can be a server, a tablet computer, an augmented reality (AR) / virtual reality (VR) device, a laptop computer, an ultra-mobile personal computer (UMPC), a netbook, a personal digital assistant (PDA), a mobile phone, and other terminal devices. The embodiment of the present application does not impose any restrictions on the specific type of the terminal device.

[0021] The basic data and operating data of the retired battery packs acquired in step S101 can be obtained from an information acquisition device or retrieved from a storage medium. The required data for the heterogeneous energy storage station to be assembled can be customized based on the actual application scenario. For example, the required data for a tractor's heterogeneous energy storage station may differ from that for a tricycle's. Basic data may include battery pack type, current, pressure, initial capacity, and resistance. Operating data may include battery pack age, current capacity, and current resistance. Required data may include the dimensions (e.g., length and width) of the heterogeneous energy storage station to be assembled, the number of battery packs, and assembly conditions. This allows for subsequent capacity assessment of the retired battery packs. This includes measuring and calculating parameters such as the initial capacity, current capacity, and remaining life of the retired battery packs. If the battery pack consists of disassembled cells, the cells must be screened and reassembled to form a consistent module.

[0022] S102. Determine the total capacity attenuation rate of each retired battery pack based on the basic data and operating data.

[0023] Among them, during the use of the battery pack, as the use time and the number of uses increase, the capacity will decay. When the capacity decay exceeds a certain limit or the service life is reached, the battery pack will be recycled and become a retired battery pack. Therefore, the current capacity of the battery pack is not necessarily the initial capacity when it leaves the factory. In order to more accurately construct a heterogeneous energy storage station, it is necessary to process the capacity decay of the retired battery pack. The capacity decay can be calculated and determined based on the basic data and operating data of the retired battery pack. For example, the internal resistance of the current retired battery pack can be determined. The greater the internal resistance, the greater the loss rate, and the capacity decay rate is likely to be greater. The total capacity decay rate of each retired battery pack can also be obtained based on the use time and number of cycles of each retired battery pack. These can be set according to actual conditions and are not limited in the embodiments of the present invention.

[0024] S103. Determine multiple target retired battery packs based on basic data, operating data, demand data, and total capacity decay rate.

[0025] Among them, after obtaining the total capacity attenuation rate of each retired battery pack, the retired battery packs can be classified according to the demand data of the heterogeneous energy storage station to be combined, so that each target retired battery pack can be a battery pack busy with demand data. For example, the current capacity of the target retired battery pack cannot be greater than the demand capacity in the demand data, etc. Therefore, the retired battery packs can be screened according to the basic data, operation data, demand data and total capacity attenuation rate of each retired battery pack, so that multiple target retired battery packs that meet the requirements can be determined.

[0026] S104: Combine multiple target retired battery packs according to set conditions to obtain a heterogeneous energy storage station.

[0027] Among them, the corresponding setting conditions can be set according to the actual application scenarios of the heterogeneous energy storage station to be combined. For example, the heterogeneous energy storage station to be combined can have three grids, each of which contains two target retired battery packs. The target retired battery packs are connected in series, parallel or mixed mode, and the weight and other conditions can also be matched according to the required capacity and the capacity of multiple target retired battery packs to determine the combined battery pack of multiple target retired battery packs. The consistency of parameters such as the voltage, capacity, and internal resistance of the battery pack needs to be considered to ensure that the combined energy storage station can operate stably. Then, it can be combined according to the setting conditions to construct a heterogeneous energy storage station so that it can be reasonably laid out and installed in the energy storage station.

[0028] Compared with the prior art, this embodiment provides the acquisition of demand data of the heterogeneous energy storage station to be combined and the basic data and operating data of each retired battery pack, so that the total capacity attenuation rate of each retired battery pack can be determined based on this data and operating data; then, based on the basic data, operating data, demand data and total capacity attenuation rate, multiple target retired battery packs are determined, and then the multiple target retired battery packs can be combined according to the set conditions to obtain a heterogeneous energy storage station; thereby, it is possible to determine the target retired battery pack that can be applied based on the usage and consumption of each retired battery pack and the demand data in the actual usage scenario, so that each heterogeneous energy storage station can meet the needs of the corresponding usage scenario, thereby improving the safety of the use process of the heterogeneous energy storage station.

[0029] In some embodiments of the present invention, basic data includes initial capacity; operation data includes current capacity and usage time; Figure 2 As shown, step S102 includes: S201. Obtain an annual loss rate based on the initial capacity, current capacity, and usage time.

[0030] Among them, the basic data may include the initial capacity, which is the capacity of the battery pack when it leaves the factory. The operating data may include the current capacity and usage time. The current capacity is the capacity currently obtained by testing the retired battery pack or other means. The usage time can be the time the retired battery pack has been used, and the unit can be years. Thus, the annual loss rate can be calculated. The annual loss rate calculation is shown in formula (1): (1) Where, is the initial capacity, is the current capacity, For usage time.

[0031] S202: Obtain the total equivalent cycle times and the total cycle loss rate according to the initial capacity and the current capacity.

[0032] Among them, the retired battery pack can also be subjected to cycle testing, and the total equivalent cycle number and total cycle loss rate can be obtained based on the initial capacity and current capacity.

[0033] S203. Obtain the total capacity attenuation rate of each retired battery pack according to the annual loss rate, the total cycle loss rate, the usage time, and the total equivalent cycle number.

[0034] Among them, after calculating the total cycle loss rate and the total equivalent cycle number, the total capacity attenuation rate of each retired battery pack can be calculated based on the annual loss rate, the total cycle loss rate, the total equivalent cycle number and the usage time, as shown in formula (2): (2) In some embodiments of the present invention, the basic data also includes the battery attenuation coefficient; the operating data also includes the deep cycle life, deep cycle capacity, normal cycle capacity, initial deep cycle number and initial normal cycle number; Figure 3 As shown, step S202 includes: S301, obtaining a target deep cycle number according to the initial deep cycle number, the deep cycle capacity and the battery attenuation coefficient; S302, obtaining a target normal cycle number according to the initial normal cycle number, the normal cycle capacity, and the battery attenuation coefficient; S303: Obtain the total equivalent cycle number according to the target deep cycle number and the target normal cycle number.

[0035] In a specific embodiment of the present invention, during battery usage, deep cycle capacity (e.g., 100% DOD, i.e., 0% to 100% charge and discharge) and normal cycle capacity (e.g., 50% DOD, i.e., 30% to 80% charge and discharge) have different impacts on battery loss. To calculate the comprehensive cycle loss rate under mixed cycle conditions, the equivalent loss contributions of both must be combined. Assume the battery pack usage record is as follows: Depth Cycle: Number of times , DOD=100% (such as 0%~100% charge and discharge) Normal cycle: times , DOD=50% (such as 30%~80% charge and discharge) Commonly used equivalent models are the Ah-throughput model or the rainflow counting method. Here we take the simplified Ah-throughput model as an example, as shown in formula (3): (3) Where, is the number of cycles under a certain DOD, is the battery attenuation coefficient (ternary lithium is usually 1.0~1.5, and lithium iron phosphate is 0.8~1.2).

[0036] The deep cycle and normal cycle can be calculated separately according to formula (3), and the initial deep cycle number, deep cycle capacity and battery attenuation coefficient can be brought into formula (3), as shown in formula (4): (4) Where, is the target depth cycle number.

[0037] Substitute the initial normal cycle number, normal cycle capacity and battery attenuation coefficient into formula (3), as shown in formula (5): (5) Where, is the target depth cycle number.

[0038] The total equivalent number of cycles can then be calculated as shown in formula (6): (6) Where, is the total number of equivalent cycles.

[0039] For example, ternary lithium batteries ( k= 1.2), Deep Cycle (100% DOD): =50 times. Normal cycle (50% DOD): =300 times.

[0040] According to formula (5), we can get =50×1 1.2 =50 times, calculated according to formula (6) =300×0.5 1.2 ≈300×0.435=130.5300×0.51.2≈300×0.435=130.5 times, the total equivalent number of cycles = 50+130.5=180.5 times.

[0041] S304. Obtain the equivalent cycle loss rate for each cycle based on the deep cycle life.

[0042] Among them, 100% DOD deep cycle life can be the cycle life = 600 times (to 80% capacity), then the equivalent cycle loss rate per cycle is calculated according to formula (7): : (7) S305. Obtain a total cycle loss rate according to each equivalent cycle loss rate and the total number of equivalent cycles.

[0043] Among them, after calculating the equivalent cycle loss rate of each retired battery pack and the total equivalent cycle number, the total cycle loss rate can be calculated, as shown in formula (8): (8) That is, after the mixed cycle, the battery capacity decayed by 3.61%.

[0044] Then it can be substituted into formula (2) for calculation, and the total capacity attenuation rate can be obtained.

[0045] In some embodiments of the present invention, the demand data includes a target model; before step S103, the following steps are further included: Classify all retired battery packs according to target models and determine multiple classified retired battery packs; A plurality of classified retired battery packs are screened to obtain a plurality of updated retired battery packs.

[0046] In a specific embodiment of the present invention, the demand data may include a target model. Since most retired power lithium batteries on the market have inconsistent specifications and types, all retired battery packs can be categorized, and then the retired battery packs corresponding to each type can be obtained, which is convenient for subsequent unified processing. The types can then be classified according to the target type, and then multiple classified retired battery packs can be retained. Then, the updated multiple retired battery packs can be determined among the multiple classified retired battery packs corresponding to the target type.

[0047] In some embodiments of the present invention, screening multiple classified retired battery packs to obtain multiple updated retired battery packs includes: Test each classified retired battery pack to obtain test data; Abnormal battery packs are eliminated from a plurality of classified retired battery packs according to the detection data to obtain a plurality of updated retired battery packs.

[0048] In a specific embodiment of the present invention, after obtaining each type of retired battery pack, each retired battery pack can be tested. The testing can be performed through a model or other methods, so that the capacity, voltage, life, charge and discharge characteristics, etc. of each battery pack can be understood, that is, the test data can be obtained. The retired battery packs can then be screened, and abnormal battery packs can be eliminated based on the test results to obtain multiple updated retired battery packs.

[0049] In some embodiments of the present invention, the demand data also includes the required capacity; Figure 4 As shown, step S103 includes: S401: Obtain a decay capacity according to the total capacity decay rate and initial capacity of each retired battery pack.

[0050] The decay capacity can then be calculated based on the total capacity decay rate and initial capacity of each retired battery pack. For example, a lithium iron phosphate battery with an initial capacity of 200 Ah, 800 cycles (average DOD = 60%) over five years, and a current capacity of 170 Ah. It is known that the cycle life at 50% DOD is 3000 cycles to 80% capacity, and the annual calendar decay rate is 1.5%.

[0051] Annual loss rate: 1.5% / year × 5 years = 7.5%, 200Ah × 7.5% = 15Ah Cyclic decay: Equivalent number of cycles (assuming k=1.2):800×(60%)1.2≈800×0.52≈416 times800×(60%)1.2≈800×0.52≈416 times Cycle life reference: 3000 times (50% DOD) ≈ 1500 times (100% DOD equivalent).

[0052] Each equivalent cycle loss rate ≈ 416 / 1500×20% ≈ 5.55% Attenuation capacity: 200Ah×5.55%≈11.1Ah S402: Obtain the remaining capacity of each retired battery pack according to the initial capacity and the attenuated capacity.

[0053] After obtaining the attenuated capacity of each retired battery pack, the remaining capacity of each retired battery pack can be obtained by subtracting the attenuated capacity from the attenuated capacity.

[0054] S403 : Screen multiple retired battery packs according to required capacity and remaining capacity to obtain multiple target retired battery packs.

[0055] Among them, after determining the remaining capacity of each retired battery pack, the required capacity and the remaining capacity can be matched and screened to obtain multiple target retired battery packs, for example, the remaining capacity needs to be less than the remaining capacity.

[0056] In some embodiments of the present invention, the setting conditions include the arrangement and quantity of retired battery packs in the heterogeneous energy storage station to be combined; step S104 includes: Combining multiple target retired battery packs according to quantity to obtain multiple combined battery packs; the sum of the remaining capacities of the multiple combined battery packs is greater than or equal to the required capacity; and the number of the multiple combined batteries is less than or equal to the quantity; Multiple combined battery packs are installed according to the arrangement to obtain a heterogeneous energy storage station.

[0057] In a specific embodiment of the present invention, the setting conditions may include the arrangement and quantity of retired battery packs in the heterogeneous energy storage station to be combined. The battery cells may also be disassembled, the same parameters may be recorded and classified according to combinability, so that multiple target retired battery packs may be combined according to quantity to obtain multiple combined battery packs; for example, from multiple target retired battery packs, several battery packs whose remaining capacities are greater than or equal to the required capacity are selected, and installed according to the arrangement. The battery packs may also be grouped through an optimization model to obtain multiple combined battery packs, which are then installed according to the arrangement. The objective function of the optimization model may be minimizing cost / maximizing efficiency / extending life, etc. The constraints may be total power ≥ required power, voltage matching, space restrictions, etc. The total power, cost, efficiency and other indicators of each feasible combination are calculated, the compatibility between battery packs (voltage, chemical system, etc.) and the series / parallel configuration scheme are evaluated to ensure voltage and current matching, and the DC / DC converter requirements are considered to coordinate different battery packs. The optimization model may output the corresponding multiple combined battery packs.

[0058] In order to better implement the method for constructing a heterogeneous energy storage station in the embodiment of the present invention, based on the method for constructing a heterogeneous energy storage station, the embodiment of the present invention also provides a device for constructing a heterogeneous energy storage station, such as Figure 5 As shown, the construction device 500 of the heterogeneous energy storage station includes: Data acquisition module 501 is used to obtain basic data and operating data of each retired battery pack, as well as demand data of the heterogeneous energy storage station to be combined; the demand data includes setting conditions; A decay rate calculation module 502 is used to determine the total capacity decay rate of each retired battery pack based on basic data and operating data; A battery determination module 503 is configured to determine a plurality of target retired battery packs based on basic data, operating data, demand data, and total capacity decay rate; The battery combination module 504 is used to combine multiple target retired battery packs according to set conditions to obtain a heterogeneous energy storage station.

[0059] The heterogeneous energy storage station construction device 500 provided in the above embodiment can implement the technical solution described in the above embodiment of the heterogeneous energy storage station construction method. The specific implementation principles of the above modules or units can be found in the corresponding content of the above embodiment of the heterogeneous energy storage station construction method, which will not be repeated here.

[0060] like Figure 6 As shown, the present invention also provides an electronic device 600. The electronic device 600 includes a processor 601, a memory 602 and a display 603. Figure 6Only some of the components of the electronic device 600 are shown, but it should be understood that implementation of all of the shown components is not required, and more or fewer components may be implemented instead.

[0061] In some embodiments, the memory 602 may be an internal storage unit of the electronic device 600, such as a hard disk or memory of the electronic device 600. In other embodiments, the memory 602 may also be an external storage device of the electronic device 600, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 600.

[0062] Furthermore, the memory 602 may include both an internal storage unit of the electronic device 600 and an external storage device. The memory 602 is used to store application software installed in the electronic device 600 and various data.

[0063] In some embodiments, the processor 601 may be a central processing unit (CPU), a microprocessor, or other data processing chip, configured to execute program codes or process data stored in the memory 602, such as the method for constructing a heterogeneous energy storage station in the present invention.

[0064] In some embodiments, the display 603 can be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, or an OLED (Organic Light-Emitting Diode) touchscreen. The display 603 is used to display information about the electronic device 600 and to display a visual user interface. Components 601-603 of the electronic device 600 communicate with each other via a system bus.

[0065] In some embodiments of the present invention, when the processor 601 executes the heterogeneous energy storage station construction program in the memory 602, the following steps may be implemented: Obtain basic data and operating data for each retired battery pack, as well as demand data for the heterogeneous energy storage station to be combined; demand data includes setting conditions; Determine the total capacity attenuation rate of each retired battery pack based on basic data and operating data; Determine multiple target retired battery packs based on basic data, operating data, demand data, and total capacity attenuation rate; According to the set conditions, multiple target retired battery packs are combined to obtain a heterogeneous energy storage station.

[0066] It should be understood that, when the processor 601 executes the heterogeneous energy storage station construction program in the memory 602 , in addition to the above functions, it can also implement other functions. For details, please refer to the description of the corresponding method embodiment above.

[0067] Furthermore, the embodiments of the present invention do not specifically limit the type of electronic device 600 mentioned. The electronic device 600 may be a portable electronic device such as a mobile phone, tablet computer, personal digital assistant (PDA), wearable device, or laptop computer. Exemplary embodiments of portable electronic devices include, but are not limited to, portable electronic devices running iOS, Android, Microsoft, or other operating systems. The portable electronic devices mentioned above may also be other portable electronic devices, such as a laptop computer with a touch-sensitive surface (e.g., a touch panel). It should also be understood that in some other embodiments of the present invention, the electronic device 600 may not be a portable electronic device, but rather a desktop computer with a touch-sensitive surface (e.g., a touch panel).

[0068] Accordingly, an embodiment of the present application also provides a computer-readable storage medium, which is used to store computer-readable programs or instructions. When the program or instructions are executed by a processor, it can implement the steps or functions of the heterogeneous energy storage station construction method provided by the above-mentioned method embodiments.

[0069] Those skilled in the art will appreciate that all or part of the process flow of the above-described method embodiment can be implemented by instructing related hardware (such as a processor, controller, etc.) through a computer program, and the computer program can be stored in a computer-readable storage medium. The computer-readable storage medium may be a magnetic disk, an optical disk, a read-only memory, or a random access memory.

[0070] The above describes in detail the construction method, device, electronic device, and storage medium of the heterogeneous energy storage station provided by the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A method for constructing a heterogeneous energy storage station, characterized in that: include: Obtain basic data and operating data for each retired battery pack, as well as demand data for the heterogeneous energy storage station to be combined; The demand data includes setting conditions; Determining a total capacity attenuation rate of each retired battery pack based on the basic data and the operating data; determining a plurality of target retired battery packs according to the basic data, the operating data, the demand data, and the total capacity decay rate; The multiple target retired battery packs are combined according to the setting conditions to obtain a heterogeneous energy storage station.

2. The method for constructing a heterogeneous energy storage station according to claim 1, characterized in that: The demand data includes a target model; and before determining a plurality of target retired battery packs based on the basic data, the operating data, the demand data, and the total capacity decay rate, the method further includes: Classifying all retired battery packs according to the target model to determine a plurality of classified retired battery packs; The multiple classified retired battery packs are screened to obtain multiple updated retired battery packs.

3. The method for constructing a heterogeneous energy storage station according to claim 2, characterized in that: The screening of the multiple classified retired battery packs to obtain the updated multiple retired battery packs includes: Test each classified retired battery pack to obtain test data; Abnormal battery packs are eliminated from the multiple classified retired battery packs according to the detection data to obtain multiple updated retired battery packs.

4. The method for constructing a heterogeneous energy storage station according to claim 1, characterized in that: The basic data includes initial capacity; the operating data includes current capacity and usage time; The determining, based on the basic data and the operating data, the total capacity attenuation rate of each retired battery pack includes: Obtaining an annual loss rate according to the initial capacity, the current capacity, and the usage time; Obtaining a total equivalent cycle number and a total cycle loss rate according to the initial capacity and the current capacity; The total capacity attenuation rate of each retired battery pack is obtained according to the annual loss rate, the total cycle loss rate, the usage time and the total equivalent cycle number.

5. The method for constructing a heterogeneous energy storage station according to claim 4, characterized in that: The basic data also includes the battery attenuation coefficient; the operating data also includes deep cycle life, deep cycle capacity, normal cycle capacity, initial deep cycle number and initial normal cycle number; The obtaining of the total equivalent cycle number and the total cycle loss rate according to the initial capacity and the current capacity includes: Obtaining a target deep cycle number according to the initial deep cycle number, the deep cycle capacity, and the battery attenuation coefficient; Obtaining a target normal cycle number according to the initial normal cycle number, the normal cycle capacity, and the battery attenuation coefficient; Obtaining a total equivalent cycle number according to the target deep cycle number and the target normal cycle number; According to the deep cycle life, the equivalent cycle loss rate is obtained; The total cycle loss rate is obtained according to the equivalent cycle loss rate for each time and the total number of equivalent cycles.

6. The method for constructing a heterogeneous energy storage station according to claim 4, characterized in that: The demand data also includes a required capacity; and determining a plurality of target retired battery packs based on the basic data, the operating data, the demand data, and the total capacity attenuation rate includes: Obtaining a decay capacity according to the total capacity decay rate and the initial capacity of each retired battery pack; Obtaining a remaining capacity of each retired battery pack according to the initial capacity and the attenuated capacity; A plurality of retired battery packs are screened according to the required capacity and the remaining capacity to obtain a plurality of target retired battery packs.

7. The method for constructing a heterogeneous energy storage station according to claim 6, characterized in that: The setting conditions include the arrangement and quantity of the retired battery packs in the heterogeneous energy storage station to be combined; and combining the multiple target retired battery packs according to the setting conditions to obtain the heterogeneous energy storage station includes: Combining the multiple target retired battery packs according to the quantity to obtain multiple assembled battery packs; the sum of the remaining capacities of the multiple assembled battery packs is greater than or equal to the required capacity; and the number of the multiple assembled batteries is less than or equal to the quantity; The multiple assembled battery packs are installed according to the arrangement to obtain a heterogeneous energy storage station.

8. A device for constructing a heterogeneous energy storage station, characterized in that: include: The data acquisition module is used to obtain the basic data and operating data of each retired battery pack, as well as the demand data of the heterogeneous energy storage station to be combined; The demand data includes setting conditions; a decay rate calculation module, configured to determine a total capacity decay rate of each retired battery pack based on the basic data and the operating data; a battery determination module, configured to determine a plurality of target retired battery packs based on the basic data, the operating data, the demand data, and the total capacity decay rate; The battery combination module is used to combine the multiple target retired battery packs according to the setting conditions to obtain a heterogeneous energy storage station.

9. An electronic device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the method for constructing a heterogeneous energy storage station as described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method for constructing a heterogeneous energy storage station according to any one of claims 1 to 7 are implemented.

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