CN117096475B - Battery pack management method and device, electronic equipment and storage medium - Google Patents

Battery pack management method and device, electronic equipment and storage medium Download PDF

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CN117096475B
CN117096475B CN202311361488.6A CN202311361488A CN117096475B CN 117096475 B CN117096475 B CN 117096475B CN 202311361488 A CN202311361488 A CN 202311361488A CN 117096475 B CN117096475 B CN 117096475B
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battery
battery pack
retired
batteries
abnormal
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CN117096475A (en
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庄胜加
赵明
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Zhuhai Zhongli New Energy Technology Co ltd
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Zhuhai Zhongli New Energy Technology Co ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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    • G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
    • G06Q10/063—Operations research, analysis or management
    • G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
    • G06Q10/06313—Resource planning in a project environment
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
    • G06Q50/06—Energy or water supply
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing

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Abstract

The application is applicable to the technical field of equipment management, and provides a management method and device of a battery pack, electronic equipment and a storage medium, wherein the method comprises the following steps: acquiring battery information of each battery to be grouped; the battery includes the retired battery; dividing all the batteries into a plurality of battery packs based on the battery information; determining regional configuration parameters of the battery pack according to the battery information of the batteries in each battery pack; generating a construction planning report of the energy storage power plant according to the regional configuration parameters; the construction planning report records storage areas for storing the battery packs and isolation distances between the storage areas. By adopting the method, the safety and the stability of the storage area of the battery pack can be improved, the corresponding isolation distance is set, the mutual interference of abnormal conditions among the battery packs can be reduced, and the power supply stability of the energy storage power plant is improved.

Description

Battery pack management method and device, electronic equipment and storage medium
Technical Field
The application belongs to the technical field of equipment management, and particularly relates to a management method and device of a battery pack, electronic equipment and a storage medium.
Background
Along with the continuous development of new energy technology, the manufacturing and application scenes of lithium ion power batteries are increased, and after a part of lithium batteries are used for a certain time, the situations of insufficient battery quantity, unstable voltage and the like can occur to be replaced, so that the lithium batteries become retired batteries. The retired battery still has considerable residual functional resources to be developed, so how to effectively use the retired battery becomes one of the focus of new energy technology development.
In the existing battery management technology, when the retired batteries are used for forming the battery pack, the arrangement planning mode of the battery pack still adopts the arrangement planning mode of the conventional lithium batteries, however, due to the fact that the electrical performance of the retired batteries is unstable, abnormal conditions are easy to occur, if the conventional arrangement planning mode is adopted, when the abnormal conditions occur in a certain retired battery, power supply of other surrounding batteries is easy to influence, the abnormal conditions are caused to diffuse among the battery packs, and then the safety of an energy storage power plant and the running stability among different battery packs are reduced.
Disclosure of Invention
The embodiment of the application provides a management method, a device, electronic equipment and a storage medium of a battery pack, which can solve the problems that the existing battery management technology is adopted, the battery pack adopts a conventional arrangement planning mode when a retired battery is used for supplying power to an energy storage power plant, if an abnormal condition occurs in a certain retired battery, the power supply of other surrounding batteries is easily affected, the abnormal condition is caused to diffuse among a plurality of battery packs, and then the safety of the energy storage power plant and the running stability among different battery packs are reduced.
In a first aspect, embodiments of the present application provide a method for managing a battery pack, where the method is applied to an energy storage power plant, where the energy storage power plant includes a plurality of battery packs configured with retired batteries; the management method of the battery pack comprises the following steps:
acquiring battery information of each battery to be grouped; the battery includes the retired battery;
dividing all the batteries into a plurality of battery packs based on the battery information;
determining regional configuration parameters of the battery pack according to the battery information of the batteries in each battery pack;
generating a construction planning report of the energy storage power plant according to the regional configuration parameters; the construction planning report records storage areas for storing the battery packs and isolation distances between the storage areas.
In a possible implementation manner of the first aspect, after the generating a building plan report of the energy storage power plant according to the regional configuration parameter, the method further includes:
determining an abnormality grade of any battery pack in response to abnormality early warning information of the any battery pack;
if the abnormal level is greater than or equal to a preset dangerous level, determining an abnormal influence area of any battery pack according to the abnormal early warning information;
Calculating the first capacity of the target spacer fluid to be injected based on the abnormal influence region; the target isolating liquid is stored in the storage area of the battery pack;
and injecting the target isolation liquid with the first capacity into an abnormal influence area so as to eliminate the abnormal condition of any battery pack.
In a possible implementation manner of the first aspect, each of the battery packs is configured with a distributed management device;
after determining the abnormality level of any battery pack in response to the abnormality pre-warning information of the any battery pack, the method further comprises:
and if the abnormality level is smaller than the danger level, controlling the distributed management device to execute an abnormality response strategy corresponding to the abnormality type according to the abnormality type of the abnormality early warning information so as to eliminate the abnormality of any battery pack.
In a possible implementation manner of the first aspect, the area configuration parameter includes a configuration parameter of the target spacer fluid;
the determining the regional configuration parameters of the battery pack according to the battery information of the batteries in each battery pack comprises the following steps:
determining a battery loss proportion of the retired battery based on retired battery information of the retired battery;
Calculating the maximum heat release energy of the retired battery according to the rated battery capacity of the retired battery and the battery loss proportion;
and determining the configuration parameters of the target isolating liquid based on the maximum heat release energy of each retired battery in the battery pack.
In a possible implementation manner of the first aspect, the determining the configuration parameter of the target spacer fluid based on a maximum heat release energy of each of the retired batteries in the battery pack includes:
calculating the total heat absorption amount of the battery pack based on the maximum heat release energy of each retired battery and the rated heat release energy of non-retired batteries in the battery pack; the total amount of heat absorption is as follows:
wherein HeatQ is the total amount of heat absorption;maximum heat release energy for the ith retired battery in the battery pack; />The number of other retired batteries adjacent to the ith retired battery in the battery pack; surd (x) is the influencing function; heatRt is the rated heat release energy; />The number of other retired batteries adjacent to the jth non-retired battery in the battery pack; n is the total number of batteries in the battery pack; m is the total number of non-retired batteries in the battery pack;
Calculating the matching degree between each candidate isolation liquid and the battery pack based on the total heat absorption amount;
selecting the target isolation liquid from a plurality of candidate isolation liquids according to all the matching degrees;
and determining the configuration parameters of the target isolation liquid according to the unit heat absorption capacity and the heat absorption capacity of the target isolation liquid.
In a possible implementation manner of the first aspect, the calculating, based on the total heat absorption amount, a matching degree between each candidate spacer fluid and the battery pack includes:
respectively obtaining characteristic parameters of each candidate isolation liquid in multiple dimensions; the dimensions include: liquid stability dimension, heat capacity dimension, heat conduction dimension, and electrical conduction dimension;
determining a second capacity of the candidate spacer fluid based on the total amount of heat absorption;
and calculating the matching degree according to the second capacity and the characteristic parameters of each dimension.
In a possible implementation manner of the first aspect, the generating a building plan report of the energy storage power plant according to the regional configuration parameter includes:
determining a desired influence range of each battery pack according to the number of batteries contained in the battery pack;
Calculating the isolation distance based on the expected influence ranges of two adjacent battery packs;
generating a first storage area and a second storage area of the storage area according to the second capacity of the target isolation liquid corresponding to the battery pack in the configuration parameters; the first storage area is used for storing each battery of the battery pack; the second storage area is used for storing the target isolation liquid;
and generating the construction planning report according to the isolation distance, the first storage area and the second storage area.
In a second aspect, an embodiment of the present application provides a management device for a battery pack, which is applied to an energy storage power plant, where the energy storage power plant generates power through a plurality of battery packs; the plurality of battery packs comprise battery packs configured with retired batteries; the management device of the battery pack includes:
a battery information acquisition unit configured to acquire battery information of each battery to be grouped; the battery includes the retired battery;
a battery dividing unit that divides all the batteries into a plurality of battery packs based on the battery information;
a region configuration parameter determining unit, configured to determine a region configuration parameter of the battery pack according to the battery information of each battery in the battery pack;
The construction planning report generating unit is used for generating a construction planning report of the energy storage power plant according to the regional configuration parameters; the construction planning report records storage areas for storing the battery packs and isolation distances between the storage areas.
In a third aspect, an embodiment of the present application provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the method according to any one of the first aspect when executing the computer program.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program which, when executed by a processor, implements a method as in any one of the first aspects above.
In a fifth aspect, embodiments of the present application provide a computer program product, which, when run on an electronic device, causes the electronic device to perform the method of any one of the first aspects.
Compared with the prior art, the embodiment of the application has the beneficial effects that: before the battery packs configured with retired batteries supply power for the energy storage power plant, battery information of each battery to be grouped can be obtained, then all the batteries to be allocated are divided into a plurality of battery packs according to the battery information, and because electrical characteristics of different battery packs possibly have differences, regional configuration parameters of storage spaces for storing the battery packs can be determined based on the battery information of all the batteries in the battery packs, and then a construction planning report of each battery pack in the energy storage power plant is determined based on the regional configuration parameters so as to guide a user to install and place each battery pack. Compared with the existing battery management technology, the storage area of each battery pack can be determined not according to unified regulations, but rather corresponding area configuration parameters can be generated for each battery pack according to battery information of each battery in the battery pack, so that the storage area of each battery pack is subjected to personalized setting based on the batteries in the battery pack, safety and stability of the storage area can be improved, corresponding isolation distances are set, mutual interference of abnormal conditions among the battery packs can be reduced, and power supply stability of an energy storage power plant is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following description will briefly introduce the drawings that are needed in the embodiments or the description of the prior art, it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an energy storage plant according to an embodiment of the present disclosure;
fig. 2 is a schematic implementation diagram of a method for managing a battery pack according to an embodiment of the present application;
figure 3 is a schematic illustration of a construction planning report provided by an embodiment of the present application;
fig. 4 is a flowchart of a specific implementation of a method for managing a battery pack according to the second embodiment of the present application after S204;
fig. 5 is a flowchart of a specific implementation of a method for managing a battery pack in S203 according to a third embodiment of the present application;
FIG. 6 is a flowchart of a specific implementation of S2033 provided by an embodiment of the application;
fig. 7 is a flowchart of a specific implementation of a method for managing a battery pack at S204 according to the fourth embodiment of the present application;
fig. 8 is a schematic structural view of a management device for a battery pack according to an embodiment of the present application;
Fig. 9 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
It should be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In addition, in the description of the present application and the appended claims, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
The battery pack management method provided by the embodiment of the application can be applied to electronic equipment capable of managing the battery pack, such as a server, a notebook computer, an ultra-mobile personal computer (UMPC) and a desktop computer. The embodiment of the application does not limit the specific type of the electronic device.
Exemplary, fig. 1 shows a schematic structural diagram of an energy storage power plant according to an embodiment of the present application. Referring to fig. 1 (a), the arrangement plan of the battery packs in the energy storage power plant adopts a conventional arrangement mode of lithium batteries, namely, the battery packs are closely arranged, and storage areas allocated by the battery packs are consistent. Because the retired battery is configured in the energy storage power plant, compared with the conventional lithium battery, the performance stability of the retired battery is poor, abnormal conditions are easy to occur, if the retired battery in a certain battery pack is arranged in a mode shown in (a) of fig. 1, other normally working batteries in the same battery pack can be influenced, and under the serious abnormal conditions, the other battery packs can be also possibly influenced by diffusion, so that the stability of the whole energy storage power plant is influenced.
Different from the arrangement planning of the battery packs of the existing energy storage power plant, the embodiment of the application can customize corresponding storage areas for each battery pack by generating the corresponding construction planning report, and determine the isolation interval between each storage area, as shown in (b) of fig. 1, so that the abnormal influence of each battery in the battery pack can be reduced, the abnormal influence among the battery packs can be reduced, and the safety and the stability of the power supply of the energy storage power plant are greatly improved.
Referring to fig. 2, fig. 2 shows an implementation schematic diagram of a method for managing a battery pack according to an embodiment of the present application, where the method includes the following steps:
in S201, battery information of each battery to be grouped is acquired; the battery includes the retired battery.
In this embodiment, the battery pack may be configured with a retired battery, where the retired battery is specifically a raw material battery, and may be a battery retired from use of the new energy automobile, and of course, may also include a battery retired in other use scenarios, where the source of the retired battery is not limited.
In this embodiment, the electronic device may obtain battery information of each battery to be grouped, where the battery information may be an electrical index parameter of the battery, where the electrical index parameter includes: and the power, the output voltage, the output current, the battery temperature, the equalization strategy and other characteristic indexes of the battery. The battery information may further include a service time of the battery, an electrolyte type, a battery loss, and the like, and the specific dimension of the information included in the battery information may be determined according to actual requirements, which is not limited herein.
It should be noted that, the battery information of the retired battery can be obtained through the determination of the related electrical test; for a non-retired battery, namely a conventional battery, the difference between the electrical performance and the rated factory performance is small, for the battery of the type, the battery information can be determined based on the factory performance information, and the acquisition mode for acquiring the battery information is determined according to the battery type, so that unnecessary electrical tests can be avoided, and the acquisition efficiency of the battery information is improved.
In this embodiment, when the energy storage power plant is started to build a plant, when the energy storage power plant needs to expand capacity, and when the configured battery pack needs to be replaced, the energy storage power plant may purchase the battery to be allocated, at this time, the electronic device needs to generate a build plan report about the battery to be allocated, and based on this, the electronic device may perform the operation of S201 described above.
In one possible implementation manner, the electronic device receives an input instruction of each battery, where the input instruction is used to store battery information of the batteries in a battery database associated with the electronic device, and according to the input allocation identifier of each battery, the number of batteries allocated as to be allocated in the battery database can be counted, if the number of batteries to be allocated is greater than a preset planning start threshold, the operation of S201 is executed, and a construction planning report of all the batteries to be allocated in the battery database is generated.
In S202, all the batteries are divided into a plurality of battery packs based on the battery information.
In the present embodiment, the electronic apparatus may divide the batteries having the same or similar electrical characteristics into the same battery group according to the battery information of the respective batteries. Because the battery to be distributed comprises retired batteries and normal batteries, certain difference exists in electrical characteristics among the batteries to be distributed, based on the difference, the electronic equipment can acquire electrical characteristic parameters with multiple dimensions from the battery information according to the battery information, calculate balance deviation factors among the batteries based on all the electrical characteristic parameters, and divide the batteries into a plurality of battery packs according to the balance deviation factors.
The electronic device can set a rated battery number for each battery group, and after the electronic device calculates an equalization deviation factor between each battery, the electronic device can select N batteries with the smallest equalization deviation factor to be divided into the same battery group, wherein N is the preset rated battery number. The value of N may be set according to the size of the actual storage area, and the rated number of batteries may be different or the same among different battery packs.
In one possible implementation manner, the above manner of dividing the battery information into the battery packs may specifically be:
step 1: the equalization deviation factor between each battery is calculated based on the battery loss coefficient recorded in the battery information of each battery.
Step 2: and dividing the batteries with the balance deviation factors smaller than a preset balance deviation threshold value into the same battery pack.
Wherein the balance deviation factors among the batteries in the same battery pack are smaller than the balance deviation threshold. For the equalization bias factor within the grouped battery pack, the calculation can be performed as follows:
wherein BalanceLv is the equalization bias factor described above; loss (i) is the battery Loss coefficient of the ith retired battery in the battery pack; lossE is the average loss coefficient of retired batteries in the battery pack; max (Loss (i)) is the maximum Loss coefficient of retired batteries in the battery pack; mim (Loss (i)) is the minimum Loss factor of retired cells in a stack.
In S203, a regional configuration parameter of the battery pack is determined according to the battery information of each of the battery cells in the battery pack.
In this embodiment, after dividing a plurality of batteries to be allocated into battery packs, the electronic device needs to configure a corresponding storage area for each battery pack in the energy storage power plant, and relevant parameters of the storage areas may be determined according to battery information of each battery in the battery pack, so that an appropriate storage area may be set for each battery pack individually, so as to improve storage security of the battery pack including retired batteries.
In this embodiment, since there is a difference in electrical characteristics between the retired batteries, there is also a difference in electrical characteristics between the assembled batteries formed by the retired batteries, and therefore, when an abnormality occurs in the assembled batteries, abnormal characteristic parameters relating to the heat generation condition, the temperature rise rate, the ignition point, and the like of the assembled batteries also change to some extent with the change in electrical characteristics. Correspondingly, in order to respond to the abnormal condition of the battery pack timely and effectively and reduce the diffusion of the abnormal condition in the battery pack and even influence other battery packs, the storage area can be configured in an area according to the actual condition. Wherein, the above-mentioned regional configuration parameter includes but is not limited to: the thickness, capacity, material, etc. of the spacer fluid, the interval distance between the batteries in the battery pack, the total area of the storage area, etc. may be set according to the actual situation, and the parameter items included in the specific area configuration parameters are not limited herein.
In S204, a construction planning report of the energy storage power plant is generated according to the regional configuration parameters; the construction planning report records storage areas for storing the battery packs and isolation distances between the storage areas.
In this embodiment, after determining, according to the battery information of each battery in each battery group, an area configuration parameter for storing a storage area corresponding to the battery group, the electronic device may further determine an isolation distance between any two adjacent battery groups in the storage area based on the inter-group distance of the battery groups recorded in the area configuration parameter, thereby generating a construction planning report of the energy storage power plant based on the area configuration parameter of each storage area and the isolation distance. The isolation distance may be specifically determined based on the distance between two adjacent battery packs, for example, the distance between the battery packs a is 1 meter, and the distance between the battery packs B is 2.5 meters, in which case, the electronic device may select the maximum value of the distances between the two adjacent battery packs as the above-mentioned isolation distance, that is, 2.5 meters, so that the safety between the battery packs can be ensured.
In one possible implementation, the isolation distance between the storage areas may be determined by: the electronic device can determine the maximum heating value of each battery pack according to the battery information of each battery in the battery pack, and determine the corresponding maximum radiation range according to the maximum heating value, wherein the larger the heating value is, the larger the corresponding radiation range is, and the larger the corresponding radiation range is, the larger the corresponding radiation range is calculated through a preset conversion algorithm. The battery pack can determine the isolation distance between two adjacent battery packs according to the average value between the two maximum radiation ranges, so that the space utilization rate is improved as much as possible under the condition of ensuring safety.
In one possible implementation, the construction planning report may be a design drawing, and fig. 3 illustrates an exemplary schematic diagram of a construction planning report provided in an embodiment of the present application. Referring to fig. 3, the construction planning report is specifically a schematic layout diagram of each battery pack in an energy storage power plant, where the number of batteries contained in each battery pack can be determined in the schematic layout diagram, a distance interval between each battery in each battery pack, such as d31, each battery pack can be further configured with a corresponding spacer fluid storage space 32, and the thickness h33 of the spacer fluid can be determined through the schematic layout diagram, and the above parameters can be determined according to the regional configuration parameters; the layout schematic diagram can also determine the isolation distance between the battery packs, such as d34, so that a user can be guided to deploy the corresponding battery pack in the energy storage power plant according to the construction planning report, the purpose of intelligently guiding the layout is achieved, the intelligent and automatic energy storage power plant planning is improved, and the purpose of individually and accurately setting the storage area can be achieved.
As can be seen from the foregoing, in the management method for a battery pack provided in the embodiment of the present application, before the battery pack configured with retired batteries supplies power to an energy storage power plant, battery information of each battery to be grouped may be obtained, then all the batteries to be allocated are divided into a plurality of battery packs according to the battery information, and because there may be a difference in electrical characteristics between different battery packs, an area configuration parameter for storing a storage space of the battery pack may be determined based on the battery information of all the batteries in the battery pack, and then a construction planning report of each battery pack in the energy storage power plant is determined based on the area configuration parameter, so as to guide a user to install and place each battery pack. Compared with the existing battery management technology, the storage area of each battery pack can be determined not according to unified regulations, but rather corresponding area configuration parameters can be generated for each battery pack according to battery information of each battery in the battery pack, so that the storage area of each battery pack is subjected to personalized setting based on the batteries in the battery pack, safety and stability of the storage area can be improved, corresponding isolation distances are set, mutual interference of abnormal conditions among the battery packs can be reduced, and power supply stability of an energy storage power plant is improved.
Fig. 4 shows a flowchart of a specific implementation of a method for managing a battery pack according to the second embodiment of the present application after S204. Referring to fig. 4, with respect to the embodiment described in fig. 2, the method for managing a battery pack according to the present embodiment further includes, after S204: s401 to S405 are specifically described as follows:
in S401, an abnormality level of any one of the battery packs is determined in response to abnormality warning information of the any one of the battery packs.
In this embodiment, after generating the corresponding construction planning report, the user may divide the plurality of batteries into corresponding battery packs according to the indication content of the construction planning report, then configure a corresponding storage area for each battery pack, and place the corresponding battery pack into the corresponding storage area. After the battery packs are all arranged, the energy storage power plant can supply power through the battery packs, in the process that the energy storage power plant supplies power through the battery packs, the electronic equipment can detect the running state of each battery pack, and if the running state of any battery pack meets the preset abnormal triggering condition, abnormal early warning information corresponding to the battery pack can be generated.
In this embodiment, each storage area may be configured with a corresponding spacer fluid, where the spacer fluid is used to self-ignite the battery pack when serious abnormality occurs in the battery pack, for example, the battery pack is overheated, or generates a large amount of heat due to a short circuit of the battery, and at this time, the electronic device may eliminate the abnormal situation with a larger influence by injecting the spacer fluid; for a slight abnormality, for example, the battery temperature is too high, the electronic device can process the abnormality by controlling the distributed management device disposed in the storage area. Based on the above, when the electronic device detects that the battery pack is abnormal, the abnormality level of the abnormal situation is determined according to the operation state of the battery pack.
In one possible implementation manner, the electronic device may obtain feature values of multiple operation dimensions of the battery pack, such as an operation duration, an operation temperature, and a real-time electric quantity of each battery in the battery pack, and introduce an abnormal level conversion algorithm based on the feature values, so as to calculate a corresponding abnormal level.
In S402, if the abnormality level is greater than or equal to a preset risk level, determining an abnormality influence area of the any battery pack according to the abnormality early warning information.
In this embodiment, if the electronic device detects that the abnormal level is greater than or equal to the preset dangerous level, it indicates that the abnormal condition is serious, and fire is easy to spread, so that the abnormal area needs to be rapidly processed in time, so as to reduce the influence on other normally operated batteries and battery packs in the energy storage power plant. Based on this, the electronic device determines an abnormal influence area of the current abnormal situation, and if the abnormal situation of the battery pack is not diffused to other battery packs, the abnormal influence area is a storage area where the battery pack is located, and if the abnormal situation has been diffused to other battery packs through an isolation area between the battery packs, the abnormal influence area includes the storage area of the abnormal battery pack, the isolation area related to the diffusion, and the storage area of other battery packs.
In one possible implementation manner, the storage area of the battery pack may be configured with an image capturing module, a real-time image of at least one storage area may be acquired through the image capturing module, and the electronic device may receive the real-time image fed back by the image capturing module corresponding to the battery pack having the abnormality, and determine the above-mentioned abnormality influence range through a preset abnormality detection algorithm, such as identifying a flame in the real-time image and a range of the flame.
In S403, calculating a first volume of the target spacer fluid to be injected based on the abnormal influence region; the target spacer fluid is stored within the storage area of the battery pack.
In S404, the target spacer fluid of the first capacity is injected into the abnormal influence area to eliminate an abnormal condition of the any one of the battery packs.
In this embodiment, a storage area of an electronic device may store a target isolation liquid, where the target isolation liquid has characteristics of flame retardance, heat absorption and the like, and abnormal conditions of a battery are often related to conditions such as over-high temperature and occurrence of fire, so as to eliminate the abnormal effects, the electronic device may implement physical cooling of a battery pack by injecting the target isolation liquid into the abnormal effect area, and the target isolation liquid may store energy in a gravity mode or a pressure mode for standby.
In one possible implementation manner, the electronic device may calculate the corresponding abnormal heating value according to the heating temperature and the abnormal influence range of the abnormal battery pack, and calculate the first capacity based on the ratio between the abnormal heating value and the specific heat capacity of the target spacer fluid.
Further, as another embodiment of the present application, each of the battery packs is configured with one distributed management device;
after determining the abnormality level of any battery pack in response to the abnormality pre-warning information of the any battery pack, the method further comprises:
in S405, if the abnormality level is smaller than the risk level, the distributed management device is controlled to execute an abnormality response policy corresponding to the abnormality type according to the abnormality type of the abnormality early warning information, so as to eliminate the abnormality of any battery pack.
In this embodiment, when the electronic device detects that the abnormality level is smaller than the danger level, the abnormality affecting degree is smaller, and the abnormality can be handled by the distributed management device without performing abnormality handling by injecting the target spacer fluid.
The distributed management device can be configured with a plurality of different abnormal response strategies, for example, for high-temperature abnormality, the temperature of the air conditioner can be reduced by increasing the temperature of the air conditioner or starting a heat dissipation module and the like; for the abnormal situation that the battery load is too high, the load of the battery pack can be reduced by closing a part of the access load. In order to determine an abnormal response policy adopted by the distributed management device, the electronic equipment may determine an abnormal operation dimension according to the operation state of the battery pack, determine an abnormal type based on the abnormal operation dimension, and then execute a corresponding abnormal response policy through the distributed management device to eliminate an abnormal situation.
In the embodiment of the application, when the electronic equipment processes the abnormal condition with lower dangerous level, the distributed management device can be used for performing the abnormal processing, so that the influence of the abnormal processing on the service life of the battery can be reduced, and the service life of the battery is prolonged.
Fig. 5 shows a flowchart of a specific implementation of the method for managing a battery pack in S203 according to the third embodiment of the present application. Referring to fig. 5, with respect to the embodiment described in fig. 2, in a method for managing a battery pack provided in this embodiment, S203 includes: S2031-S2033 is specifically described as follows:
Further, the regional configuration parameters comprise configuration parameters of the target spacer fluid; the determining the regional configuration parameters of the battery pack according to the battery information of the batteries in each battery pack comprises the following steps:
in S2031, a battery loss ratio of the retired battery is determined based on retired battery information of the retired battery.
In this embodiment, since the retired battery is a battery after a period of time, the rated battery power of the retired battery is different from the actual battery power, based on which, the electronic device may determine the battery information of the retired battery through a related electrical test, where the battery loss ratio of the retired battery may be included in the retired battery information obtained through the test.
In one possible implementation manner, the retired battery information of the retired battery includes a usage record of the retired battery, in which case, the electronic device may determine a battery health degree of the retired battery according to the usage record of each retired battery in the battery pack, and then compare the battery health degree with an ideal battery state, so as to calculate a first battery loss coefficient of each retired battery. The first battery loss coefficient may specifically be based on a difference between an ideal battery state and a current battery health level.
In S2032, a maximum heat release energy of the retired battery is calculated from the rated battery capacity of the retired battery and the battery loss ratio.
In this embodiment, the electronic device may query the rated battery capacity of the retired battery, that is, the battery capacity marked when leaving the factory, according to the battery model of the retired battery, and according to the product between the battery loss ratio and the rated battery capacity, may calculate the actual battery capacity corresponding to the retired battery, may calculate the maximum electric energy stored in the retired battery based on the actual battery capacity, and may calculate the maximum heat release energy of the retired battery based on the conversion relationship between the electric energy and the heat energy.
In S2033, the configuration parameters of the target spacer fluid are determined based on the maximum heat release energy of each of the retired batteries in the battery pack.
In this embodiment, the target isolation liquids with different capacities have different heat absorption amounts, so that in order to adapt to the actual heat release energy of the retired battery, the electronic device may determine the capacity of the required target isolation liquid matched with each battery in the battery pack, so that the configuration parameters corresponding to the target isolation liquid may be obtained based on the capacities of the required target isolation liquids of all the batteries in the battery pack.
In this embodiment, the total capacity required to calculate the target spacer fluid can be calculated by:
wherein total is the total capacity; heat (j) is the maximum Heat release energy of the jth cell (including retired as well as normal cells); c (target) is the specific heat capacity of the target spacer fluid, and M is the total number of cells of the battery. Wherein the maximum heat release energy of the normal battery may be determined based on the rated battery capacity of the normal battery.
Further, as another embodiment of the present application, fig. 6 shows a flowchart of a specific implementation of S2033 provided in an embodiment of the present application. Referring to fig. 6, the S2033 may specifically include S601 to S604, which is specifically described as follows:
in S601, calculating a total amount of heat absorption of the battery pack based on a maximum heat release energy of each of the retired batteries in the battery pack and a rated heat release energy of non-retired batteries; the total amount of heat absorption is as follows:
wherein HeatQ is the total amount of heat absorption;maximum heat release energy for the ith retired battery in the battery pack; />The number of other retired batteries adjacent to the ith retired battery in the battery pack; surd (x) is the influencing function; heatRt is the rated heat release energy; / >The number of other retired batteries adjacent to the jth non-retired battery in the battery pack; n is the total number of batteries in the battery pack; m is the total number of non-retired batteries in the battery pack.
In this embodiment, when determining the configuration parameters of the target spacer fluid, the electronic device needs to consider the thermal influence condition between each battery in the battery pack, and if the number of retired batteries included around a certain battery in the battery pack is larger, the safety and stability of the battery pack are lower, so when calculating the heat absorption capacity of each battery when an abnormality occurs, the number of retired batteries configured around and the number of non-retired batteries need to be considered, and based on the two numbers, an influence function corresponding to the number of retired batteries is determined. It should be noted that, because the electrical performance of the non-retired battery is relatively stable, and the number of times of use is relatively small, the actual electric quantity is basically consistent with the rated electric quantity, correspondingly, the maximum heat release energy is also consistent with the rated heat release energy, namely the rated heat release energy, and the non-retired battery is not required to be recalculated in a manner of adopting the retired battery, thereby being capable of reducing unnecessary calculation processes.
In one possible implementation manner, surd (x) can be obtained through experimental calculation, namely, exothermic data of a plurality of experiments are obtained, the number of retired batteries contained in the periphery is calculated to be different through a linear fitting mode, and the influence on battery exothermic is calculated; wherein, the Surd (Numi) can be expressed as:
Wherein, baseHeat is the basic heating value of each retired battery; a1 to aNumi and b are constants determined by a linear fitting method, wherein the number of items contained in Surd (Numi) is determined according to the number of Numi, for example, numi is 1, and the expression isFor example, numi is 2, the above expression is。
It should be noted that, each battery in the same battery pack may be configured with a corresponding small unit, each small unit is configured to perform inter-battery isolation by using the target isolating liquid, and a safety shell with higher protection strength is established between the sets formed by the plurality of small units.
In S602, the matching degree between each candidate spacer fluid and the battery pack is calculated based on the total amount of heat absorption.
In this embodiment, the electronic device may select, according to actual situations, an appropriate spacer fluid from a plurality of different candidate spacer fluids as the target spacer fluid. The specific heat capacity, the heat conduction capacity, the electric conduction capacity and other relevant characteristics corresponding to different candidate isolation liquids are different, so that the electronic equipment can calculate the matching degree between the candidate isolation liquids and the battery pack according to the physical characteristics corresponding to each candidate isolation liquid and the total heat absorption amount.
In one possible implementation manner, the electronic device may determine a maximum storage capacity of the storage area, calculate the total amount of heat absorption and the specific heat capacity of the candidate spacer fluid, calculate the desired capacity, if the desired capacity is greater than the maximum storage capacity, indicate that the spacer fluid with the specified capacity cannot be stored, and at this time, the corresponding matching degree is 0, and if the desired capacity is less than the maximum storage capacity, calculate the matching degree based on the physical characteristics of the candidate spacer fluid.
Further, as another embodiment of the present application, the step S602 may specifically include the following steps:
step 1: respectively obtaining characteristic parameters of each candidate isolation liquid in multiple dimensions; the dimensions include: liquid stability dimension, heat capacity dimension, heat conduction dimension, and electrical conduction dimension;
step 2: determining a second capacity of the candidate spacer fluid based on the total amount of heat absorption;
step 3: and calculating the matching degree according to the second capacity and the characteristic parameters of each dimension.
In this embodiment, the electronic device may obtain characteristic parameters of each candidate isolation liquid in multiple physical characteristic dimensions, including liquid stability, heat capacity (such as specific heat capacity), thermal conductivity, and electrical conductivity, where the electrical conductivity requires that the target isolation liquid be in a non-conductive state in multiple environments due to the need for abnormal isolation, and the thermal conductivity is used to determine the heat absorption efficiency, so that the time required for abnormal elimination can be calculated.
In this embodiment, the electronic device may calculate the second capacity according to the ratio between the total heat absorption amount and the specific heat capacity of the candidate isolation liquid, then may compare the characteristic parameter corresponding to each physical characteristic with the target value, calculate the score corresponding to each dimension, and then calculate the matching degree between the candidate isolation liquid and the battery pack based on the scores of the multiple dimensions and the second capacity.
In the embodiment of the application, the characteristic values of the plurality of dimensions of the candidate isolation liquid are obtained, so that the target isolation liquid is selected from the plurality of candidate isolation liquids, the accuracy of selecting the target isolation liquid can be improved, and the management efficiency of the battery pack can be improved.
In S603, according to all the matching degrees, the target spacer fluid is selected from a plurality of candidate spacer fluids.
In this embodiment, after determining to obtain the matching degree between each candidate isolation liquid and the battery pack, the electronic device may select the candidate isolation liquid with the highest matching degree as the target isolation liquid.
In S604, according to the unit endothermic amount and the endothermic capacity of the target spacer fluid, the configuration parameters of the target spacer fluid are determined.
In this embodiment, the electronic device may calculate, according to the unit heat absorption capacity (i.e. specific heat capacity) and the heat absorption capacity of the target isolation liquid, a storage capacity corresponding to the target isolation liquid, and generate the configuration parameters described above with respect to the solution type of the target isolation liquid and the storage capacity described above.
In the embodiment of the application, the matching degree between the candidate isolation liquid and the battery pack is calculated, so that the most suitable target isolation liquid can be selected, the capacity of the target isolation liquid is determined, the accuracy of determining the configuration parameters can be improved, and the management efficiency of the battery pack is improved.
Fig. 7 is a flowchart showing a specific implementation of the method for managing a battery pack in S204 according to the fourth embodiment of the present application. Referring to fig. 7, in contrast to the embodiment of any one of fig. 2 to 6, in the method for managing a battery pack provided in this embodiment, at S204, the method includes: s2041 to S2044 are described in detail as follows:
in S2041, a desired range of influence of each of the battery packs is determined based on the number of batteries contained in the battery pack.
In this embodiment, the electronic device may calculate, according to the number of batteries allocated in the battery pack, a desired influence range corresponding to the battery pack, that is, a maximum range that may be affected by all the batteries in the battery pack in the case of a fire. The electronic device may determine a basic influence range for each battery, and then calculate the expected influence range corresponding to the battery pack with the basic influence ranges of the plurality of batteries.
In S2042, the isolation distance is calculated based on the expected influence ranges of the adjacent two battery packs.
In this embodiment, the electronic device may determine the isolation distance between the two battery packs according to the two desired influence ranges disposed adjacently, and the isolation distance may make the desired influence ranges between the two battery packs non-overlapping.
In S2043, generating a first storage area and a second storage area of the storage area according to a second capacity of the target spacer fluid corresponding to the battery pack in the configuration parameter; the first storage area is used for storing each battery of the battery pack; the second storage area is used for storing the target isolation liquid.
In this embodiment, the second capacity of the target spacer fluid may be recorded in the configuration parameter, the area capacity of the second storage area for storing the target spacer fluid may be determined based on the second capacity, and the corresponding first storage area may be determined according to the separation distance of each battery in the electronic group.
In S2044, the construction plan report is generated from the isolation distance, the first storage area, and the second storage area.
In this embodiment, the electronic device may generate a building plan report corresponding to the energy storage power plant based on the isolation distance, the first storage area, and the second storage area corresponding to each battery pack.
In this embodiment, fig. 8 is a block diagram illustrating a structure of a management apparatus for a battery pack according to an embodiment of the present application, where each unit included in the management apparatus for a battery pack is configured to execute each step implemented by the generating apparatus in the corresponding embodiment of fig. 1. Please refer to fig. 1 and the related description of the embodiment corresponding to fig. 1. For convenience of explanation, only the portions related to the present embodiment are shown.
Referring to fig. 8, the management device of a battery pack is applied to an energy storage power plant, wherein the energy storage power plant generates power through a plurality of battery packs; the plurality of battery packs comprise battery packs configured with retired batteries; the management device of the battery pack includes:
a battery information acquisition unit 81 for acquiring battery information of each battery to be grouped; the battery includes the retired battery;
a battery dividing unit 82 for dividing all the batteries into a plurality of battery groups based on the battery information;
a region configuration parameter determining unit 83 configured to determine a region configuration parameter of the battery pack according to the battery information of each battery in the battery pack;
A construction planning report generating unit 84, configured to generate a construction planning report of the energy storage power plant according to the regional configuration parameter; the construction planning report records storage areas for storing the battery packs and isolation distances between the storage areas.
It should be understood that, in the block diagram of the management apparatus of the battery pack shown in fig. 8, each module is configured to perform each step in the embodiments corresponding to fig. 1 to 7, and each step in the embodiments corresponding to fig. 1 to 7 has been explained in detail in the above embodiments, and specific reference is made to fig. 1 to 7 and related descriptions in the embodiments corresponding to fig. 1 to 7, which are not repeated herein.
Fig. 9 is a block diagram of an electronic device according to another embodiment of the present application. As shown in fig. 9, the electronic device 900 of this embodiment includes: a processor 910, a memory 920, and a computer program 930 stored in the memory 920 and executable on the processor 910, such as a program of a management method of a battery pack. The processor 910, when executing the computer program 930, implements the steps in the embodiments of the management method for each battery pack described above, such as S201 to S204 shown in fig. 2. Alternatively, the processor 910 may implement the functions of the modules in the embodiment corresponding to fig. 9, for example, the functions of the units 81 to 84 shown in fig. 8 when executing the computer program 930, and refer to the related description in the embodiment corresponding to fig. 8.
By way of example, the computer program 930 may be partitioned into one or more modules, which are stored in the memory 920 and executed by the processor 910 to complete the present application. One or more of the modules may be a series of computer program instruction segments capable of performing particular functions to describe the execution of the computer program 930 in the electronic device 900. For example, the computer program 930 may be divided into individual unit modules, each of which functions specifically as above.
Electronic device 900 may include, but is not limited to, processor 910, memory 920. It will be appreciated by those skilled in the art that fig. 9 is merely an example of an electronic device 900 and is not intended to limit the electronic device 900, and may include more or fewer components than shown, or may combine certain components, or different components, e.g., an electronic device may also include an input-output device, a network access device, a bus, etc.
The processor 910 may be a central processing unit, or may be another general purpose processor, digital signal processor, application specific integrated circuit, off-the-shelf programmable gate array, or other programmable logic device, discrete hardware components, or the like. A general purpose processor may be a microprocessor or any conventional processor or the like.
The memory 920 may be an internal storage unit of the electronic device 900, such as a hard disk or a memory of the electronic device 900. The memory 920 may also be an external storage device of the electronic device 900, such as a plug-in hard disk, a smart memory card, a flash memory card, etc. provided on the electronic device 900. Further, the memory 920 may also include both internal storage units and external storage devices of the electronic device 900.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.

Claims (6)

1. The management method of the battery pack is characterized by being applied to an energy storage power plant, wherein the energy storage power plant generates power through a plurality of battery packs; the plurality of battery packs comprise battery packs configured with retired batteries; the management method of the battery pack comprises the following steps:
Acquiring battery information of each battery to be grouped; the battery includes the retired battery;
dividing all of the batteries into a plurality of battery packs based on the battery information, including: calculating an equalization deviation factor between each battery based on battery loss coefficients recorded in battery information of each battery; dividing the batteries with the balance deviation factors smaller than a preset balance deviation threshold value into the same battery pack; wherein, the balance deviation factors among all batteries in the same battery pack are smaller than the balance deviation threshold; for the equalization bias factor within the grouped battery, the calculation is performed by:
wherein BalanceLv is the equalization bias factor described above; loss (i) is the battery Loss coefficient of the ith retired battery in the battery pack; lossE is the average loss coefficient of retired batteries in the battery pack; max (Loss (i)) is the maximum Loss coefficient of retired batteries in the battery pack; min (Loss (i)) is the minimum Loss coefficient of retired batteries in the battery pack;
determining regional configuration parameters of the battery pack according to the battery information of the batteries in each battery pack;
generating a construction planning report of the energy storage power plant according to the regional configuration parameters; the construction planning report records storage areas for storing the battery packs and isolation distances among the storage areas; the construction planning report record further comprises a layout diagram of each battery pack, the number of batteries contained in each battery pack is determined in the layout diagram, the distance between the batteries in the battery pack is spaced, the isolating liquid storage space of each battery pack can be configured, and the thickness of the isolating liquid can be determined through the layout diagram;
After the building planning report of the energy storage power plant is generated according to the regional configuration parameters, the method further comprises the following steps:
determining an abnormality grade of any battery pack in response to abnormality early warning information of the any battery pack;
if the abnormal level is greater than or equal to a preset dangerous level, determining an abnormal influence area of any battery pack according to the abnormal early warning information;
calculating the first capacity of the target spacer fluid to be injected based on the abnormal influence region; the target isolating liquid is stored in the storage area of the battery pack; the target spacer fluid includes a plurality of physical property dimensions; the physical characteristic dimension includes electrical conductivity; the conductivity is: requiring the target spacer fluid to be in a non-conductive state in various environments;
injecting the target isolation liquid with the first capacity into an abnormal influence area so as to eliminate abnormal conditions of any battery pack;
each battery pack is provided with a distributed management device;
after determining the abnormality level of any battery pack in response to the abnormality pre-warning information of the any battery pack, the method further comprises:
if the abnormality level is smaller than the danger level, controlling the distributed management device to execute an abnormality response strategy corresponding to the abnormality type according to the abnormality type of the abnormality early warning information so as to eliminate the abnormality of any battery pack; comprising the following steps: the distributed management device is configured with a plurality of different abnormal response strategies, and for high-temperature abnormality, the temperature of the air conditioner is increased or the heat dissipation module is started to cool; for the abnormal situation of the excessively high battery load, the load of the battery pack is reduced by closing a part of the access load; determining an abnormal operation dimension according to the operation state of the battery pack, determining an abnormal type based on the abnormal operation dimension, and executing a corresponding abnormal response strategy through the distributed management device to eliminate the abnormal condition;
The regional configuration parameters comprise configuration parameters of the target isolation liquid;
the determining the regional configuration parameters of the battery pack according to the battery information of the batteries in each battery pack comprises the following steps:
determining a battery loss proportion of the retired battery based on retired battery information of the retired battery;
calculating the maximum heat release energy of the retired battery according to the rated battery capacity of the retired battery and the battery loss proportion;
determining the configuration parameters of the target spacer fluid based on the maximum heat release energy of each retired battery in the battery pack;
the determining the configuration parameters of the target spacer fluid based on the maximum heat release energy of each retired battery in the battery pack comprises:
calculating the total heat absorption amount of the battery pack based on the maximum heat release energy of each retired battery and the rated heat release energy of non-retired batteries in the battery pack; the total amount of heat absorption is as follows:
wherein HeatQ is the total amount of heat absorption;maximum heat release energy for the ith retired battery in the battery pack;the number of other retired batteries adjacent to the ith retired battery in the battery pack; surd (x) is the influencing function; heatRt is the rated heat release energy; / >The number of other retired batteries adjacent to the jth non-retired battery in the battery pack; n is the total number of batteries in the battery pack; m is the total number of non-retired batteries in the battery pack;
calculating the matching degree between each candidate isolation liquid and the battery pack based on the total heat absorption amount;
selecting the target isolation liquid from a plurality of candidate isolation liquids according to all the matching degrees;
and determining the configuration parameters of the target isolation liquid according to the unit heat absorption quantity and the total heat absorption quantity of the target isolation liquid.
2. The method according to claim 1, wherein the calculating the degree of matching between each candidate spacer fluid and the battery pack, respectively, based on the total amount of heat absorption, comprises:
respectively obtaining characteristic parameters of each candidate isolation liquid in multiple dimensions; the dimensions include: liquid stability dimension, heat capacity dimension, heat conduction dimension, and electrical conduction dimension;
determining a second capacity of the candidate spacer fluid based on the total amount of heat absorption;
and calculating the matching degree according to the second capacity and the characteristic parameters of each dimension.
3. A method of managing according to any of the claims 1-2, characterized in that said generating a construction planning report of said energy storage plant according to said regional configuration parameters comprises:
Determining a desired influence range of each battery pack according to the number of batteries contained in the battery pack;
calculating the isolation distance based on the expected influence ranges of two adjacent battery packs;
generating a first storage area and a second storage area of the storage area according to the second capacity of the target isolation liquid corresponding to the battery pack in the configuration parameters; the first storage area is used for storing each battery of the battery pack; the second storage area is used for storing the target isolation liquid;
and generating the construction planning report according to the isolation distance, the first storage area and the second storage area.
4. The management device of the battery pack is characterized by being applied to an energy storage power plant, wherein the energy storage power plant generates power through a plurality of battery packs; the plurality of battery packs comprise battery packs configured with retired batteries; the management device of the battery pack includes:
a battery information acquisition unit configured to acquire battery information of each battery to be grouped; the battery includes the retired battery;
a battery dividing unit for dividing all the batteries into a plurality of battery packs based on the battery information, including: calculating an equalization deviation factor between each battery based on battery loss coefficients recorded in battery information of each battery; dividing the batteries with the balance deviation factors smaller than a preset balance deviation threshold value into the same battery pack; wherein, the balance deviation factors among all batteries in the same battery pack are smaller than the balance deviation threshold; for the equalization bias factor within the grouped battery, the calculation is performed by:
Wherein BalanceLv is the equalization bias factor described above; loss (i) is the battery Loss coefficient of the ith retired battery in the battery pack; lossE is the average loss coefficient of retired batteries in the battery pack; max (Loss (i)) is the maximum Loss coefficient of retired batteries in the battery pack; min (Loss (i)) is the minimum Loss coefficient of retired batteries in the battery pack;
a region configuration parameter determining unit, configured to determine a region configuration parameter of the battery pack according to the battery information of each battery in the battery pack;
the construction planning report generating unit is used for generating a construction planning report of the energy storage power plant according to the regional configuration parameters; the construction planning report records storage areas for storing the battery packs and isolation distances among the storage areas; the construction planning report record further comprises a layout diagram of each battery pack, the number of batteries contained in each battery pack is determined in the layout diagram, the distance between the batteries in the battery pack is spaced, the isolating liquid storage space of each battery pack can be configured, and the thickness of the isolating liquid can be determined through the layout diagram;
the construction planning report generation unit is further configured to:
Determining an abnormality grade of any battery pack in response to abnormality early warning information of the any battery pack;
if the abnormal level is greater than or equal to a preset dangerous level, determining an abnormal influence area of any battery pack according to the abnormal early warning information;
calculating the first capacity of the target spacer fluid to be injected based on the abnormal influence region; the target isolating liquid is stored in the storage area of the battery pack; the target spacer fluid includes a plurality of physical property dimensions; the physical characteristic dimension includes electrical conductivity; the conductivity is: requiring the target spacer fluid to be in a non-conductive state in various environments;
injecting the target isolation liquid with the first capacity into an abnormal influence area so as to eliminate abnormal conditions of any battery pack;
each battery pack is provided with a distributed management device;
the construction planning report generation unit is further configured to:
if the abnormality level is smaller than the danger level, controlling the distributed management device to execute an abnormality response strategy corresponding to the abnormality type according to the abnormality type of the abnormality early warning information so as to eliminate the abnormality of any battery pack; comprising the following steps: the distributed management device is configured with a plurality of different abnormal response strategies, and for high-temperature abnormality, the temperature of the air conditioner is increased or the heat dissipation module is started to cool; for the abnormal situation of the excessively high battery load, the load of the battery pack is reduced by closing a part of the access load; determining an abnormal operation dimension according to the operation state of the battery pack, determining an abnormal type based on the abnormal operation dimension, and executing a corresponding abnormal response strategy through the distributed management device to eliminate the abnormal condition;
The regional configuration parameters comprise configuration parameters of the target isolation liquid;
the area configuration parameter determining unit is further configured to:
determining a battery loss proportion of the retired battery based on retired battery information of the retired battery;
calculating the maximum heat release energy of the retired battery according to the rated battery capacity of the retired battery and the battery loss proportion;
determining the configuration parameters of the target spacer fluid based on the maximum heat release energy of each of the retired batteries in the battery pack, comprising:
calculating the total heat absorption amount of the battery pack based on the maximum heat release energy of each retired battery and the rated heat release energy of non-retired batteries in the battery pack; the total amount of heat absorption is as follows:
wherein HeatQ is the total amount of heat absorption;maximum heat release energy for the ith retired battery in the battery pack;the number of other retired batteries adjacent to the ith retired battery in the battery pack; surd (x) is the influencing function; heatRt is the rated heat release energy; />The number of other retired batteries adjacent to the jth non-retired battery in the battery pack; n is the total number of batteries in the battery pack; m is the total number of non-retired batteries in the battery pack;
Calculating the matching degree between each candidate isolation liquid and the battery pack based on the total heat absorption amount;
selecting the target isolation liquid from a plurality of candidate isolation liquids according to all the matching degrees;
and determining the configuration parameters of the target isolation liquid according to the unit heat absorption quantity and the total heat absorption quantity of the target isolation liquid.
5. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 3 when executing the computer program.
6. A computer readable storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the method according to any one of claims 1 to 3.
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