CN115459381A

CN115459381A - Battery management method, system, computer readable storage medium and electronic device

Info

Publication number: CN115459381A
Application number: CN202211057840.2A
Authority: CN
Inventors: 任华华
Original assignee: Alibaba China Co Ltd
Current assignee: Alibaba China Co Ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-09

Abstract

The application discloses a battery management method, a battery management system, a computer-readable storage medium and an electronic device. The method is applied to a remote battery management system and comprises the following steps: acquiring battery operation data of each battery pack in a plurality of battery packs; determining an abnormal battery pack and abnormal information corresponding to the abnormal battery pack based on battery operation data of each battery pack; generating a target control instruction corresponding to the abnormal information; and sending the target control instruction to a target group management unit so that the target group management unit updates the charge and discharge state of the abnormal battery pack based on the target control instruction, wherein the target group management unit is a group management unit corresponding to the abnormal battery pack. The application solves the technical problem that the operation safety of the related battery is low in the prior art.

Description

Battery management method, system, computer readable storage medium and electronic device

Technical Field

The present disclosure relates to the field of lithium batteries, and in particular, to a battery management method and system, a computer-readable storage medium, and an electronic device.

Background

Because the lithium ion battery has the advantages of long service life, good environmental protection, high energy density, small occupied area and the like, the lithium ion battery has become a development trend of various industries for replacing a lead-acid battery, for example, a system composed of thousands of lithium ion batteries is constructed in the data center industry to be used as a standby power supply or energy storage. However, lithium ion batteries are prone to thermal runaway under mechanical stimulation, electrical stimulation and poor heat dissipation, and the consequences of thermal runaway are smoking, fire or explosion, so that the operational safety of lithium ion batteries is a problem of great concern in the industry.

However, the related battery management system still has certain defects in monitoring, controlling and managing the operation of a large number of lithium ion batteries, thereby causing the problem of low operation safety of the lithium ion batteries.

In view of the above problems, no effective solution has been proposed.

Disclosure of Invention

The embodiment of the application provides a battery management method, a battery management system, a computer-readable storage medium and electronic equipment, so as to at least solve the technical problem that the operation safety of related batteries is low in the prior art.

According to an aspect of the embodiments of the present application, there is also provided a battery management method applied to a remote battery management system, including: acquiring battery operation data of each battery pack in a plurality of battery packs; determining an abnormal battery pack and abnormal information corresponding to the abnormal battery pack based on battery operation data of each battery pack; generating a target control instruction corresponding to the abnormal information; and sending the target control instruction to a target group management unit so that the target group management unit updates the charging and discharging state of the abnormal battery pack based on the target control instruction, wherein the target group management unit is a group management unit corresponding to the abnormal battery pack.

According to another aspect of the embodiments of the present application, there is also provided a battery management method, which is applied to a local battery management system, and includes: the method comprises the steps of obtaining battery operation data of each battery pack in a plurality of battery packs, and sending the battery operation data of each battery pack to a remote battery management system; the method comprises the steps that a control target group management unit receives a target control instruction returned by a remote battery management system, wherein the target group management unit is a group management unit corresponding to an abnormal battery pack, the abnormal battery pack is determined by the remote battery management system based on battery operation data of each battery pack, and the target control instruction is generated by the remote battery management system based on abnormal information corresponding to the abnormal battery pack; and the control target group management unit updates the charging and discharging states of the abnormal battery pack based on the target control instruction.

According to another aspect of the embodiments of the present application, there is also provided a battery management system, including: a plurality of battery packs; the local battery management system at least comprises a plurality of group management units, wherein each group management unit is used for controlling the charge and discharge state of a battery pack, and the group management units correspond to the battery packs one to one; and the remote battery management system is connected with the local battery management system and used for acquiring the battery operation data of each battery pack and sending a target control instruction to at least one group management unit based on the battery operation data so that the at least one group management unit controls the charge and discharge state of the battery pack corresponding to the group management unit based on the target control instruction.

According to another aspect of the embodiments of the present application, there is also provided a battery management method, including: responding to a detection instruction for detecting the plurality of battery packs, and displaying an abnormal battery pack and abnormal information corresponding to the abnormal battery pack on a graphical user interface, wherein the abnormal battery pack and the abnormal information corresponding to the abnormal battery pack are determined by a remote battery management system based on battery operation data of each battery pack; responding to an adjusting instruction for adjusting the abnormal battery pack, and adjusting the charge-discharge state of the abnormal battery pack, wherein the charge-discharge state of the abnormal battery pack is adjusted by a target group management unit based on a target control instruction, the target control instruction is generated by a remote battery management system based on abnormal information, the group management units correspond to the battery packs one to one, and the target group management unit is a group management unit corresponding to the abnormal battery pack; and displaying the charge and discharge state of the abnormal battery pack after adjustment on a graphical user interface.

According to another aspect of the embodiments of the present application, there is also provided a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the above battery management method when running.

According to another aspect of embodiments of the present application, there is also provided an electronic device, including one or more processors; a memory for storing one or more programs that, when executed by the one or more processors, cause the one or more processors to implement a method for running the programs, wherein the programs are arranged to perform the above-described battery management method when run.

In the embodiment of the application, a mode of determining abnormal battery packs in the plurality of battery packs and performing safety management based on the remote battery management system is adopted, and the remote battery management system is arranged, so that when the local battery management system is abnormal in data sampling due to hardware failure, the remote battery management system can timely find the abnormality and generate a target control instruction, the corresponding battery packs can be timely stopped, safety problems such as thermal runaway and the like are avoided, and the operation safety of the battery packs is effectively improved. In addition, in the process of determining the battery state information based on the battery operation data, the local battery management system has the problems of insufficient data storage capacity and insufficient calculation capacity, parameters such as the residual capacity and the health degree of the battery cannot be accurately estimated, and the battery in the battery pack is easily overcharged and overdischarged, so that the battery pack has the problems of low energy utilization efficiency or excessive energy use, and further has the problems of asset waste or asset safety risk and the like. Therefore, by arranging the far-end battery management system, the far-end battery management system can determine more accurate battery state information based on the battery operation data of each battery pack based on the expandability and high-performance calculation of the far-end battery management system, so that the safety problem of the battery pack can be found in time, a target control instruction is determined to effectively control the charging and discharging state of the battery pack, and the operation safety of the battery pack is further improved.

Therefore, the scheme provided by the application achieves the purpose of determining abnormal battery packs in the plurality of battery packs and performing safety management based on the remote battery management system, thereby achieving the technical effect of improving the operation safety of the battery packs and further solving the technical problem of low operation safety of related batteries in the prior art.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is an embodiment of an alternative computer terminal (or mobile terminal) as a transmitting end according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an alternative battery management method according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an alternative battery management method according to an embodiment of the present application;

FIG. 4 is a schematic diagram of an alternative battery management system according to an embodiment of the present application;

FIG. 5 is a schematic diagram of an alternative battery management system according to an embodiment of the present application;

FIG. 6 is a communication schematic diagram of an alternative battery management system according to an embodiment of the present application;

FIG. 7 is a control schematic of an alternative remote battery management system according to an embodiment of the present application;

FIG. 8 is a schematic diagram of an alternative battery management method according to an embodiment of the present application;

fig. 9 is an interaction diagram of an alternative battery management system and a client according to an embodiment of the present application.

Detailed Description

In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

First, some terms or terms appearing in the description of the embodiments of the present application are applicable to the following explanations:

the data center comprises: the construction site for providing the operation environment for the centralized electronic information equipment can be one or more buildings or part of one building, including a main machine room, an auxiliary area, a support area, an administrative management area and the like.

Lithium-ion battery (Lithium-ion battery): is a rechargeable battery which mainly depends on lithium ions moving between a positive electrode and a negative electrode to work; the main common positive electrode materials currently used for lithium ion batteries are: lithium cobalt oxide (LiCoO 2), lithium manganate (LiMn 2O 4), lithium nickelate (LiNiO 2), and lithium iron phosphate (LiFePO 4).

Battery Management System (BMS): the method is used for carrying out real-time monitoring, fault warning, battery residual capacity (SOC, state of Charge) estimation, battery Health (SOH) estimation, short-circuit protection, electric leakage monitoring, display alarm, charging/discharging mode selection and the like on battery parameters.

Battery remaining capacity (SOC, state of Charge): also known as the state of charge. Represents the ratio of the remaining capacity to the total available capacity of the battery, expressed in percent, after use or long-term storage for a period of time; the value range is 0-1, when the residual capacity of the battery is =0, the battery is completely discharged, and when the residual capacity of the battery is =1, the battery is completely charged; the residual capacity of the lithium ion battery cannot be directly measured, and the residual capacity can only be estimated through parameters such as battery terminal voltage, charge-discharge current, internal resistance and the like, and the parameters are influenced by factors such as battery aging, environmental temperature change, running state and the like.

Battery Health (SOH, state of Health): the battery capacity, health degree and performance state are referred to, namely simply the ratio of the performance parameter to the nominal parameter after the battery is used for a period of time, the battery which is newly delivered from a factory is 100%, and the total scrap rate is 0%. The ratio of the capacity discharged from the battery in a full-charge state to a cut-off voltage at a certain rate to the corresponding nominal capacity is simply understood as the limit capacity of the battery. The internal resistance of the battery has a certain relationship with the health of the battery. The lower the health degree of the battery is, the larger the internal resistance of the lithium ion battery is, the internal resistance value of the battery is indirectly calculated by detecting data such as voltage, current, temperature and the like, and then the health degree of the battery is calculated according to the relation between the health degree of the battery and the internal resistance of the battery.

Direct Current chopper (DC/DC, direct Current/Direct Current): refers to a device that converts a fixed dc voltage to a variable dc voltage.

Example 1

There is also provided, in accordance with an embodiment of the present application, a method embodiment of a battery management method, it should be noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system, such as a set of computer-executable instructions, and that, although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different than here.

Fig. 1 shows in a block diagram an embodiment using a computer terminal 101 (or mobile terminal) as the transmitting end. As shown in fig. 1, a computer terminal 101 (or mobile terminal) may be connected or electronically connected to one or more servers 102 via a data network, wherein the aforementioned servers may be resource servers, computing servers, security servers, and the like. In an alternative embodiment, the computer terminal 101 (or the mobile terminal) may be a mobile phone, a tablet, a computer, or a smart wearable device. The data network connection may be a local area network connection, a wide area network connection, an internet connection, or other type of data network connection. The computer terminal 101 (or mobile terminal) may execute to connect to a network service executed by a server (e.g., a computing server) or a group of servers. The web server 103 is a network-based user service such as battery security management, social networking, cloud resources, email, online payment, or other online applications.

Under the above operating environment, the present application provides a battery management method as shown in fig. 2, so as to manage a plurality of battery packs in an associated battery system, where the aforementioned battery system may be used as a backup power supply or an energy storage of a data center. Fig. 2 is a schematic diagram of an alternative battery management method according to an embodiment of the present application, and as shown in fig. 2, the method is applied to a remote battery management system, and includes the following steps:

step S202: battery operating data for each of a plurality of battery packs is obtained.

In step S202, the remote battery management system is a battery management system deployed on a remote end, which may be a cloud server in the present application. The remote battery management system can acquire battery operation data of each battery pack in a plurality of battery packs uploaded by a sleeve management unit in a local battery management system based on a Modbus-TCP communication Protocol through a Network (Network) interface, and store the acquired battery operation data, wherein the Modbus-TCP communication Protocol is a Modbus Protocol based on a Transmission Control Protocol (TCP)/Internet Protocol (IP), and the Modbus is an application layer message Transmission Protocol. Optionally, the remote battery management system may further obtain information, such as battery state information corresponding to each battery pack uploaded by the sleeve management unit and control information of the voltage controller by the pack management unit. The local battery management system at least comprises a plurality of group management units and CAN also comprise a sleeve management unit, wherein the group management units correspond to the battery groups one by one and are used for realizing the acquisition of the battery operation data of the battery groups and the control of the battery groups, the sleeve management units CAN communicate with the group management units through a Controller Area Network (CAN), and the sleeve management units CAN acquire the battery operation data, the battery state information, the control information of the group management units to the voltage Controller and the like which are sent by the group management units and send the battery operation data, the battery state information, the control information of the group management units to the voltage Controller and the like to the remote battery management system. The battery state information corresponding to each battery pack, the control information of the voltage controller by the pack management unit, and the like may be determined by the pack management unit corresponding to the battery pack. Optionally, in this embodiment, the voltage controller may be a direct current chopper, specifically, a bidirectional direct current chopper, where the direct current chopper may also correspond to the battery pack one to one, each pack management unit is configured to control a working state of the direct current chopper corresponding to the battery pack, and each direct current chopper may control a charge/discharge state of the battery pack corresponding to itself based on its working state. In addition, the battery pack may be a lithium ion battery pack, and each battery pack may include a plurality of single batteries, and the battery state information is at least used to represent an operating state of each battery included in the battery pack.

S204: an abnormal battery pack and abnormal information corresponding to the abnormal battery pack are determined based on battery operation data of each battery pack.

In step S204, the remote battery management system may determine the battery state information of each battery pack based on a preset model and the battery operation data of each battery pack, so as to determine an abnormal battery pack and the abnormal information corresponding to the abnormal battery pack from the plurality of battery packs. The foregoing abnormal information may be information representing abnormal problems such as insufficient battery capacity and loss of monitoring of the battery pack, and the abnormal information may further include abnormal data causing the abnormal problems of the battery pack.

S206: and generating a target control command corresponding to the abnormal information.

In step S206, the remote battery management system may determine the abnormality type of the abnormal battery pack and the abnormality data based on the abnormality information of the abnormal battery pack, thereby generating a corresponding target control command. For example, when the abnormality information indicates that the temperature of the battery in a certain battery pack (i.e., the abnormality data) is greater than a first preset value, the remote battery management system may generate a target control command to adjust the charge/discharge state of the battery pack, and when the abnormality information indicates that the temperature of the battery in a certain battery pack is greater than a second preset value, the remote battery management system may generate a target control command to deactivate the battery pack.

S208: and sending the target control instruction to a target group management unit so that the target group management unit updates the charge and discharge state of the abnormal battery pack based on the target control instruction, wherein the target group management unit is a group management unit corresponding to the abnormal battery pack.

In step S208, after the remote battery management system generates the target control instruction, the remote battery management system may send the target control instruction to the group management unit corresponding to the abnormal battery pack (i.e., the aforementioned target group management unit) sequentially through a high-voltage direct current (HVDC) and a sleeve management unit according to the type of the target control instruction, or send the target control instruction to the group management unit corresponding to the abnormal battery pack directly through the sleeve management unit according to the type of the target control instruction, so that the group management unit controls the operating state of the dc chopper corresponding to the group management unit based on the target control instruction. Each direct current chopper can be connected with a bus of the high-voltage direct current transmission equipment, the high-voltage direct current transmission equipment is used for rectifying alternating current into direct current so as to supply power for the battery pack through the direct current choppers, and in the process of transmitting the target control instruction, the high-voltage direct current transmission equipment can adjust the output power of the high-voltage direct current transmission equipment based on the target control instruction.

Further, the target group management unit may control an operating state of the dc chopper corresponding to the abnormal battery group based on the target control instruction to update the charge and discharge state of the abnormal battery group. The group management unit and the direct current chopper can communicate through a controller local area network, and the working state of the direct current chopper can be a charging state, a discharging state, a hot standby state and a shutdown state.

It should be noted that, the remote battery management system sends the target control instruction corresponding to the abnormal information to the target group management unit, so as to implement effective management on the charge and discharge states of the abnormal battery group, thereby implementing active preventive safety operation on the battery group, eliminating potential safety hazards in time, and further improving the operation safety of the battery group.

In the embodiment of the application, a mode of determining an abnormal battery pack in a plurality of battery packs based on a remote battery management system and performing safety management is adopted, battery operation data of each battery pack in the plurality of battery packs is obtained through the remote battery management system, then the abnormal battery pack and abnormal information corresponding to the abnormal battery pack are determined based on the battery operation data of each battery pack, then a target control instruction corresponding to the abnormal information is generated, and the target control instruction is sent to a target group management unit, so that the target group management unit updates the charge and discharge state of the abnormal battery pack based on the target control instruction, wherein the target group management unit is a group management unit corresponding to the abnormal battery pack.

It is easy to notice that, in the above process, by setting the remote battery management system, it is ensured that when the local battery management system causes data sampling abnormality due to hardware failure, the remote battery management system can find the abnormality in time and generate a target control instruction, so that the corresponding battery pack can be stopped in time, safety problems such as thermal runaway are avoided, and the operation safety of the battery pack is effectively improved. In addition, in the process of determining the battery state information based on the battery operation data, the local battery management system has the problems of insufficient data storage capacity and insufficient calculation capacity, cannot accurately estimate parameters such as the residual electric quantity and the health degree of the battery, and easily causes the overcharge and the overdischarge of the battery in the battery pack, so that the battery pack has the problems of low energy utilization efficiency or excessive energy use, further asset waste or asset safety risk and the like. Therefore, by arranging the far-end battery management system, the far-end battery management system can determine more accurate battery state information based on the battery operation data of each battery pack based on the expandability and high-performance calculation of the far-end battery management system, so that the safety problem of the battery pack can be found in time, a target control instruction is determined to effectively control the charging and discharging states of the battery pack, and the operation safety of the battery pack is further improved.

In an alternative embodiment, the remote battery management system may determine an abnormal battery pack and abnormal information corresponding to the abnormal battery pack from among the plurality of battery packs based on inherent characteristic data of batteries included in the battery packs, battery operation data, and historical battery operation data. Specifically, the remote battery management system determines battery state information of each battery pack based on characteristic information of each battery pack, battery operation data, and historical battery operation data, and then determines an abnormal battery pack and abnormal information corresponding to the abnormal battery pack based on the battery state information of each battery pack.

The inherent characteristic data is characteristic information, and the characteristic information of the battery in each battery pack is different due to different factory data. Alternatively, the remote battery management system may directly determine a part of the battery State information of the battery pack based on the battery operation data of the battery pack and the historical battery operation data, for example, directly use the voltage of each battery in the battery operation data as the battery State information, or determine the Charge/discharge time of the battery pack recently charged/discharged based on the historical battery operation data, or indirectly determine another part of the battery State information of the battery pack based on the characteristic information, the battery operation data, and the battery operation data of the battery pack, for example, use a neural network model, determine the remaining battery capacity (SOC, state of Charge), the battery Health (SOH, state of Health), and the like of each battery based on the voltage, the current, and the like of each battery in the battery operation data, or determine the operating State consistency of the batteries included in the battery pack based on the battery operation data, or determine the real-time value or the capacity change rule of at least one battery in the battery pack based on the determined battery Health and the historical battery operation data.

Further, after the remote battery management system determines the battery state information of each battery pack, the remote battery management system may determine an abnormal battery pack and abnormal information corresponding to the abnormal battery pack based on the battery state information of each battery pack. For example, the remote battery management system may determine whether each data in the battery status information satisfies a corresponding preset condition to determine whether the battery pack corresponding to the battery status information is an abnormal battery pack. And the remote battery management system may take the abnormal data in the battery state information of the abnormal battery pack as part of the information in the abnormal information when determining the abnormal battery pack.

It should be noted that, the remote battery management system determines the battery state information of each battery pack according to the characteristic information, the battery operation data and the historical battery operation data of each battery pack, so as to realize accurate calculation of the battery state information of each battery pack, and enable the calculation result to be superior to that of the local battery management system, thereby realizing more accurate determination of an abnormal battery pack, and further, the available capacity of the battery contained in the battery pack can be exerted to the maximum extent on the premise of ensuring the safe operation of the battery pack.

In an alternative embodiment, the remote battery management system may determine, from the plurality of battery packs, an abnormal battery pack having problems such as a target safety risk, long-term non-charging/discharging, and poor consistency of the operating states of the batteries, based on the battery state information.

Optionally, when an abnormal battery pack with a target safety risk needs to be determined from the plurality of battery packs, the battery state information at least includes temperature data of batteries included in the current battery pack. Specifically, the remote battery management system may determine temperature data of a battery included in the current battery pack based on battery state information of the current battery pack, and may determine that a target safety risk exists in the current battery pack when it is determined that a temperature value in the temperature data is higher than a first preset threshold, or it is determined that the temperature data is missing, or it is determined that the temperature value in the temperature data is an invalid temperature value (e.g., 10000 ℃), so as to determine the current battery pack as an abnormal battery pack, otherwise, it is determined that the target safety risk does not exist in the current battery pack. Wherein the current battery pack is any one of a plurality of battery packs.

Further, the remote battery management system may also determine, based on the temperature data of the battery included in the current battery pack, whether the current battery pack has a target safety risk in combination with the battery remaining capacity of the battery included in the current battery pack, for example, when the battery remaining capacity of the battery is greater than a certain preset value and a temperature value in the temperature data is higher than a second preset threshold, it is determined that the current battery pack has the target safety risk, and when the battery remaining capacity of the battery is less than or equal to the preset value, or when the temperature value in the temperature data is less than or equal to the second preset threshold, it is determined that the current battery pack does not have the target safety risk. The second preset threshold may be smaller than or equal to the first preset threshold.

Further, when an abnormal battery pack with a target safety risk is determined, the problem that hardware failure may occur in a pack management unit or an acquisition unit corresponding to the abnormal battery pack is determined, so that over-temperature protection of the battery pack is easily failed, and the battery loses safety monitoring.

Optionally, when an abnormal battery pack that is not charged or discharged for a long time needs to be determined from the plurality of battery packs, the battery state information at least includes charge and discharge time of the last charge and discharge of the battery included in the current battery pack. Specifically, the remote battery management system may determine, based on the battery state information of the current battery pack, the charge and discharge time at which the battery included in the current battery pack has been charged and discharged last time, and may determine that the current battery pack has not been charged and discharged for a long time when the charge and discharge time is earlier than a preset time, so as to determine the current battery pack as an abnormal battery pack, and otherwise, determine that the current battery pack has not been charged and discharged for a long time.

Further, the remote battery management system may also determine whether the current battery pack is not charged or discharged for a long time by combining the remaining battery capacity of the battery included in the current battery pack based on the charging and discharging time of the battery that is charged or discharged last time, for example, when the charging and discharging time of the current battery pack is earlier than a preset time and a variation range of the remaining battery capacity of the battery is smaller than a first preset range, determine that the current battery pack is not charged or discharged for a long time, and when the charging and discharging time of the current battery pack is equal to or later than the preset time or the variation range of the remaining battery capacity of the battery is greater than or equal to the first preset range, determine that the current battery pack is not charged or discharged for a long time.

Further, when it is determined that there is an abnormal battery pack that has not been charged and discharged for a long time, it is determined that a problem occurs in the control logic in the pack management unit corresponding to the abnormal battery pack, so that other battery state information of the battery pack is likely to have a large deviation, and therefore, the target control instruction generated by the remote battery management system may be used to perform a charge and discharge cycle on the abnormal battery pack.

Optionally, when an abnormal battery pack with poor consistency of the operating states of the batteries included in the abnormal battery pack needs to be determined from the plurality of battery packs, the battery state information at least includes the voltage of the battery included in the current battery pack. Specifically, the remote battery management system may determine voltages of batteries included in the current battery pack based on battery state information of the current battery pack, and may determine that the operating state consistency of the batteries included in the current battery pack does not satisfy a preset condition when it is determined that the static voltage difference of each battery is greater than or equal to a first preset difference value, or when the dynamic voltage difference of each battery is greater than or equal to a second preset difference value, thereby determining that the current battery pack is an abnormal battery pack, otherwise, determine that the static voltage difference of each battery is smaller than the first preset difference value, or when the dynamic voltage difference of each battery is smaller than the second preset difference value, determine that the operating state consistency of the batteries included in the current battery pack satisfies the preset condition, and determine that the current battery pack is a normal battery pack.

Further, when it is determined that an abnormal battery pack with poor consistency of the running states of the included batteries exists, it is determined that a problem occurs in the balancing logic in the pack management unit corresponding to the abnormal battery pack, so that accelerated aging or a reduction in dischargeable capacity of the battery pack is easily caused, and therefore, a target control instruction generated by the remote battery management system can be used for performing active balancing control on the abnormal battery pack.

Optionally, the remote battery management system may further determine a real-time capacity value or a capacity change rule of a battery included in the current battery pack based on the battery state information of the current battery pack, and may determine that the battery capacity of the current battery pack is insufficient when a difference between the real-time capacity value and the theoretical capacity value of the battery exceeds a preset difference range, or when the capacity change rule of the battery exceeds modal information of big data analysis, the current battery pack is an abnormal battery pack, and otherwise, the current battery pack is determined to be a normal battery pack. And when the abnormal battery pack with insufficient battery capacity is determined, a corresponding target control instruction is generated to control the direct current chopper corresponding to the abnormal battery pack to be closed.

In addition, aiming at the defect of insufficient calculation accuracy of the local battery management system, when the remote battery management system determines that the calculated battery residual capacity and the calculated battery health degree of the remote battery management system deviate from the values of the battery residual capacity and the battery health degree uploaded by the local battery management system, the remote battery management system can send the calculated battery residual capacity and the calculated battery health degree to the corresponding group management unit, so that the group management unit can update the internal data, and further, the safety risk is avoided.

It should be noted that, because the remote battery management system effectively enriches the data in the battery state information, by determining the abnormal battery packs of different abnormal types based on different battery state information, not only the abnormal battery packs can be accurately determined, but also the abnormal types of the abnormal battery packs that can be determined are enriched.

In an optional embodiment, since the local battery management system may independently implement monitoring and charging/discharging management on the battery pack, the time for the remote battery management system to actively perform downlink control on the local battery management system is described. Optionally, the remote battery management system may determine a priority of the abnormal information based on an abnormal type of the abnormal information, if the priority is greater than or equal to a preset priority, the remote battery management system generates a first target control instruction corresponding to the abnormal information, and if the priority is less than the preset priority and the remote battery management system does not receive information indicating that the abnormal information is resolved within a preset time, the remote battery management system generates a second target control instruction corresponding to the abnormal information, where the priority indicates a risk degree of the abnormal information.

Specifically, the remote battery management system may determine the priority of the abnormal information corresponding to the abnormal type that can only be discovered by itself as the first priority, for example, the local battery management system may not store historical battery operation data satisfying a preset required amount due to insufficient storage capacity, and when determining whether there is a battery pack that has not been charged and discharged for a long time, the remote battery management system may only determine the priority of the abnormal information corresponding to the abnormal type that has not been charged and discharged for a long time, and thus, the remote battery management system may determine the priority of the abnormal information corresponding to the abnormal type that has not been charged and discharged for a long time as the first priority.

The remote battery management system may determine the priority of the abnormality information corresponding to the abnormality type that can be found and processed by both the remote battery management system and the local battery management system as the second priority, for example, the local battery management system may independently determine the consistency of the operating states of the batteries included in the battery pack and resolve the abnormality information when the abnormality information is found, and therefore, may determine the priority of the abnormality information corresponding to the abnormality type that the operating states of the batteries included in the battery pack are poor in consistency as the second priority. Wherein the second priority is lower than the first priority.

Further, after determining the priority of the abnormal information, the remote battery management system may compare the priority of the abnormal information with a preset priority to determine a time to generate the target control command. For example, if the predetermined priority is the first priority, when it is determined that the above-mentioned abnormality type is abnormality information that has not been charged or discharged for a long time, the remote battery management system may directly generate the first target control command based on the abnormality information, and may perform a charge/discharge cycle on the abnormal battery pack by controlling the dc chopper of the abnormal battery pack corresponding to the abnormality information in a downstream manner. Optionally, if it is determined that the foregoing abnormal type is abnormal information that is included in the battery pack and has poor consistency in the operating states of the batteries, the remote battery management system may determine whether information that represents that the abnormal information is resolved and is fed back by the local battery management system is received within a preset time, and if the information is received, it indicates that the abnormal battery pack corresponding to the abnormal information has been adjusted in the charging and discharging states by the local battery management system, and the remote battery management system does not need to regenerate a control instruction to perform downlink control.

It should be noted that, because the local battery management system and the remote battery management system can both perform charging and discharging management on the battery pack, the remote battery management system determines the time for generating the target control instruction according to the priority based on the abnormal information, thereby avoiding the problem that system resources are wasted or the control effect is affected due to the fact that the remote battery management system and the local battery management system simultaneously adjust the charging and discharging states of the battery pack, and improving the rationality of downlink control of the remote battery management system.

In an alternative embodiment, a management method in which the local battery management system independently manages the charge and discharge states of the abnormal battery pack will be described. Optionally, the local battery management system may obtain battery operation data of each battery pack, determine the abnormal battery pack and abnormal information corresponding to the abnormal battery pack based on the battery operation data of each battery pack, update the charge-discharge state of the abnormal battery pack based on the abnormal information, and send target information to the remote battery management system, so that the remote battery management system does not generate a target control instruction, where the target information is used to represent that the abnormal information is resolved.

Specifically, each group management unit in the local battery management system can acquire battery operation data of a battery group corresponding to the local battery management unit, and then determine whether the battery group corresponding to the local battery management unit is an abnormal battery group (for example, the operating state of the battery contained in the battery group is poor in consistency) based on the battery operation data, so that when the battery group is determined to be the abnormal battery group, a corresponding first local control instruction is determined based on the abnormal information of the battery group, and the first local control instruction is sent to a direct current chopper corresponding to the abnormal battery group, so that the direct current chopper changes the working state of the local chopper based on the first local control instruction, and the charging and discharging state of the abnormal battery group is updated.

Further, when the group management unit sends a first local control instruction to the dc chopper, or when the group management unit determines that the abnormal problem of the abnormal battery pack is solved, the local battery management system may feed back target information indicating that the abnormal information is solved to the remote battery management system, so that the remote battery management system does not generate the target control instruction.

In an alternative embodiment, a method for managing the charge and discharge states of the normal battery pack independently by the local battery management system will be described. Optionally, the local battery management system may control each group management unit to determine a target charge/discharge state of each battery group based on the battery operation data of each battery group, so as to control each group management unit to control the operating states of the plurality of dc choppers based on the target charge/discharge state.

Optionally, each group management unit may determine whether the battery group is to be charged or discharged based on the battery operation data of the corresponding battery group, so as to determine a target charge/discharge state of the battery group, and further determine a second local control instruction output to the dc chopper, so as to control the dc chopper to adjust the working state of the dc chopper to the target working state based on the second local control instruction, thereby implementing adjustment of the charge/discharge state of the battery group. The first local control instruction and the second local control instruction may be the same or different, and the target charging/discharging state may be charging prohibition, charging permission, charging prohibition, and charging prohibition.

Therefore, the scheme provided by the application achieves the purpose of determining abnormal battery packs in the plurality of battery packs and performing safety management based on the far-end battery management system, thereby achieving the technical effect of improving the operation safety of the battery packs and further solving the technical problem of low operation safety of related batteries in the prior art.

Example 2

According to the embodiment of the application, the embodiment of the method for managing the battery is also provided. Fig. 3 is a schematic diagram of an alternative battery management method according to an embodiment of the present application, and as shown in fig. 3, the method is applied to a local battery management system, and includes the following steps:

step S302: the method comprises the steps of obtaining battery operation data of each battery pack in a plurality of battery packs, and sending the battery operation data of each battery pack to a remote battery management system.

In step S302, each group management unit in the local battery management system may obtain battery operation data of a corresponding battery group through a corresponding acquisition unit, and upload the battery operation data to the remote battery management system. The local battery management system at least comprises a plurality of group management units and can also comprise a sleeve management unit, wherein the group management units correspond to the battery groups one by one, the acquisition units correspond to the single batteries in the battery groups one by one, the acquisition units are used for monitoring the voltage, temperature, current and other data of the single batteries corresponding to the acquisition units so as to be acquired by the group management units corresponding to the acquisition units, so that the group management units can acquire the battery operation data of the battery groups, the sleeve management units and the group management units can communicate with each other through a controller local area network, the sleeve management units can acquire the battery operation data, the battery state information, the control information of the group management units to a voltage controller and the like, the battery operation data, the battery state information, the control information of the group management units to the voltage controller and the like, which are sent to the remote battery management system, and the battery state information corresponding to each battery group and the control information of the group management units to the voltage controller and the like can be determined by the group management units corresponding to the battery groups. The battery pack may be a lithium ion battery pack, and each battery pack may include a plurality of single batteries, and the battery operation data is at least used for representing operation data of each battery included in the battery pack.

Step S304: and the control target group management unit receives a target control instruction returned by the remote battery management system, wherein the target group management unit is a group management unit corresponding to an abnormal battery pack, the abnormal battery pack is determined by the remote battery management system based on the battery operation data of each battery pack, and the target control instruction is generated by the remote battery management system based on the abnormal information corresponding to the abnormal battery pack.

In step S304, the remote battery management system may determine the battery state information of each battery pack based on a preset model and the battery operation data of each battery pack, so as to determine an abnormal battery pack and abnormal information corresponding to the abnormal battery pack from the plurality of battery packs, and optionally, the remote battery management system may determine the battery state information of a battery pack based on the preset model and in combination with the battery operation data of a certain battery pack, and at least one of the characteristic information of each battery in the battery pack and the stored historical battery operation data of the battery pack, so as to determine the abnormal battery pack and the abnormal information corresponding to the abnormal battery pack from the plurality of battery packs. The battery state information is used to represent the operating states of the batteries included in the battery pack, the abnormal information may represent abnormal problems such as insufficient battery capacity and loss of monitoring of the battery pack, and the abnormal information may further include abnormal data causing the abnormal problems of the battery pack.

Further, after the remote battery management system determines the abnormal battery pack and the abnormal information corresponding to the abnormal battery pack, the remote battery management system may determine an abnormal problem of the abnormal battery pack and abnormal data based on the abnormal information of the abnormal battery pack, thereby generating a corresponding target control command. For example, when the abnormality information indicates that the temperature of the battery in a certain battery pack (i.e., the abnormality data) is greater than a first preset value, the remote battery management system may generate a target control command to adjust the charge/discharge state of the battery pack, and when the abnormality information indicates that the temperature of the battery in a certain battery pack is greater than a second preset value, the remote battery management system may generate a target control command to deactivate the battery pack.

Further, the remote battery management system may send the target control instruction to the group management unit corresponding to the abnormal battery pack (i.e., the target group management unit) sequentially through the high-voltage direct-current power transmission device and the sleeve management unit, or the remote battery management system may send the target control instruction to the group management unit corresponding to the abnormal battery pack directly through the sleeve management unit, so that the target group management unit obtains the target control instruction. In this embodiment, the aforementioned voltage controllers may also correspond to the battery packs one to one, and the voltage controllers may be dc choppers, and specifically, may be bidirectional dc choppers, where each group management unit is configured to control an operating state of the dc chopper corresponding to the battery pack, and each dc chopper may control a charging/discharging state of the battery pack corresponding to itself based on its own operating state. And in the process of transmitting the target control command, the high-voltage direct-current power transmission equipment can adjust the output power of the high-voltage direct-current power transmission equipment based on the target control command.

Step S306: and the control target group management unit updates the charging and discharging states of the abnormal battery pack based on the target control instruction.

In step S306, the target group management unit may control the operating state of the dc chopper corresponding to the abnormal battery group based on the target control instruction to update the charge-discharge state of the abnormal battery group. The group management unit and the direct current chopper can communicate through a controller local area network, and the working state of the direct current chopper can be a charging state, a discharging state, a hot standby state and a shutdown state.

In the embodiment of the application, a mode of determining abnormal battery packs in the plurality of battery packs and performing safety management based on a remote battery management system is adopted, battery operation data of each battery pack in the plurality of battery packs is acquired through a local battery management system, and then a target group management unit is controlled to acquire a target control instruction, so that the target group management unit is controlled to update the charging and discharging states of the abnormal battery packs based on the target control instruction. The target group management unit corresponds to an abnormal battery group, the abnormal battery group is determined by the remote battery management system based on battery operation data of each battery group, and the target control instruction is generated by the remote battery management system based on abnormal information corresponding to the abnormal battery group.

It is easy to notice that, in the above process, by setting the remote battery management system, it is ensured that when the local battery management system causes data sampling abnormality due to hardware failure, the remote battery management system can timely find the abnormality and generate a target control instruction, so that the corresponding battery pack can be timely stopped, safety problems such as thermal runaway and the like are avoided, and the operation safety of the battery pack is effectively improved. In addition, in the process of determining the battery state information based on the battery operation data, the local battery management system has the problems of insufficient data storage capacity and insufficient calculation capacity, parameters such as the residual capacity and the health degree of the battery cannot be accurately estimated, and the battery in the battery pack is easily overcharged and overdischarged, so that the battery pack has the problems of low energy utilization efficiency or excessive energy use, and further has the problems of asset waste or asset safety risk and the like. Therefore, by arranging the far-end battery management system, the far-end battery management system can determine more accurate battery state information based on the battery operation data of each battery pack based on the expandability and high-performance calculation of the far-end battery management system, so that the safety problem of the battery pack can be found in time, a target control instruction is determined to effectively control the charging and discharging states of the battery pack, and the operation safety of the battery pack is further improved.

In an alternative embodiment, a method for adjusting the charging and discharging states of different abnormal battery packs by the local battery management system based on different target control commands is described.

Alternatively, if the abnormal battery pack is a battery pack with a target safety risk, the target control command may be a command for turning off a dc chopper corresponding to the abnormal battery pack. As shown in fig. 4, the remote battery management system may send the target control command to the group management unit corresponding to the abnormal battery group sequentially through the switch, the hvdc transmission device, and the sleeve management unit. After the group management unit corresponding to the abnormal battery pack receives the target control instruction, the group management unit may generate a corresponding third local control instruction based on the target control instruction, so that the third local control instruction is sent to the direct current chopper corresponding to the abnormal battery pack, and the direct current chopper may be shut down based on the third local control instruction, so that the abnormal battery pack is timely disconnected from the main loop of the battery system, and the charging and discharging state of the abnormal battery pack is adjusted. Further, as shown in fig. 4, the target group management unit may also simultaneously turn off the high-voltage relay inside the abnormal battery group based on the target control command. The third local control instruction may be used to indicate that the charge and discharge state of the battery is adjusted to be forbidden to be charged and discharged, and the high-voltage relays are also in one-to-one correspondence with the battery packs.

It should be noted that, by disconnecting the abnormal battery pack with the target safety risk from the main circuit, the problems of thermal runaway and the like of the abnormal battery pack can be effectively avoided, so that the operation safety of the battery pack can be ensured.

Optionally, if the abnormal battery pack is a battery pack that is not charged or discharged within a preset time period, the target control instruction may be an instruction for performing charge and discharge cycles on the abnormal battery pack to perform discharge-standing-charge cycles on the abnormal battery pack. The remote battery management system can send the target control command to a group management unit corresponding to the abnormal battery group sequentially through the switch, the high-voltage direct-current transmission equipment and the sleeve management unit, wherein the target control command can be divided into a first sub-target control command, a second sub-target control command and a third sub-target control command, the sending time of the first sub-target control command, the sending time of the second sub-target control command and the sending time of the third sub-target control command can be different, the first sub-target control command is used for discharging the abnormal battery group, the second sub-target control command is used for standing the abnormal battery group, and the third sub-target control command is used for charging the abnormal battery group. Specifically, after the group management unit corresponding to the abnormal battery pack receives any sub-target control instruction, the group management unit may generate a corresponding third local control instruction based on the sub-target control instruction, so as to send the third local control instruction to the dc chopper corresponding to the abnormal battery pack, so that the dc chopper may enter a charging state, a discharging state, or a shutdown state based on the third local control instruction, thereby implementing a discharging-standing-charging cycle of the abnormal battery pack, that is, implementing adjustment of a charging and discharging state of the abnormal battery pack. Preferably, the single battery pack is subjected to charge and discharge cycles under the condition that the other battery packs are in a full-battery state, and in the charge and discharge cycles, when the pack management unit or the sleeve management unit detects that the commercial power is stopped based on the bus voltage, the execution of the charge and discharge cycles can be stopped, and the charge and discharge state of the battery pack is updated to a discharge state based on the direct current chopper.

It should be noted that, by performing charge and discharge cycles on the abnormal battery pack that has not been charged and discharged for a long time, the abnormal battery pack can be recovered to a normal battery pack, thereby ensuring the operational safety of the battery pack.

Optionally, if the abnormal battery pack is a battery pack whose operating state consistency does not meet the preset condition, the target control instruction may be an instruction for performing active equalization control on the abnormal battery pack. The remote battery management system may send the target control instruction to the group management unit corresponding to the abnormal battery group sequentially through the high-voltage direct-current power transmission device and the sleeve management unit. After the group management unit corresponding to the abnormal battery pack receives the target control instruction, the group management unit may generate a corresponding third local control instruction based on the target control instruction, so that the third local control instruction is sent to the direct current chopper or the acquisition unit corresponding to the abnormal battery pack, so that the direct current chopper or the acquisition unit may perform balance control on the abnormal battery pack based on the third local control instruction, thereby adjusting the charge and discharge state of the abnormal battery pack. The third local control instruction can be used for representing the balance control of the battery in the battery pack, and the acquisition unit can also be used for realizing the balance control of the battery pack.

Optionally, each group management unit in the local battery management system may obtain battery operation data of the battery group corresponding to the local battery management unit, and then determine whether the battery group corresponding to the local battery management unit is an abnormal battery group (for example, the operating states of the batteries included in the battery group are poor in consistency) based on the battery operation data, so that when the battery group is determined to be an abnormal battery group, a corresponding first local control instruction may be determined based on the abnormal information of the battery group, and the first local control instruction is sent to the dc chopper corresponding to the abnormal battery group, so that the dc chopper changes its operating state based on the first local control instruction, thereby updating the charging and discharging state of the abnormal battery group. The first local control instruction is used for indicating that the charging and discharging state of the battery is adjusted to be forbidden to be charged and discharged.

It should be noted that, the battery pack is managed by the local battery management system and the remote battery management system, so that the operation safety of the battery pack can be further ensured, and in addition, when the local battery management system finishes processing the abnormal information, the instruction of solving the abnormal information is fed back to the remote battery management system, so that the problem that the charging and discharging states of the battery pack are adjusted by the remote battery management system and the local battery management system at the same time, so that the system resources are wasted or the control effect is influenced is solved, and the downlink control reasonability of the remote battery management system is improved.

In an alternative embodiment, a method of managing the charge and discharge states of a normal battery pack independently by a local battery management system is described. Optionally, the local battery management system may control each group management unit to determine a target charge/discharge state of each battery group based on the battery operation data of each battery group, so as to control each group management unit to control the operating states of the plurality of dc choppers based on the target charge/discharge state.

Optionally, each group management unit may determine whether the battery group is to be charged or discharged based on the battery operation data of the corresponding battery group, so as to determine a target charge/discharge state of the battery group, and further determine a second local control instruction output to the dc chopper, so as to control the dc chopper to adjust the working state of the dc chopper based on the second local control instruction, and further implement adjustment of the charge/discharge state of the battery group. The first local control instruction, the third local control instruction, and the second local control instruction may be the same or different, the target charge/discharge state may be charge prohibition, charge permission, and charge prohibition, and the second local control instruction may be used to characterize and adjust the charge/discharge state of the battery to the target charge/discharge state.

First, a method of determining a target charge/discharge state by the group management means will be described. Optionally, the group management unit may determine that the target charge-discharge state corresponding to the battery group is charge-forbidden and discharge-allowed when it is determined that the highest single battery voltage in the corresponding battery group is greater than or equal to 4.2V and the lowest single battery voltage is greater than or equal to 2.8V; the group management unit can determine that the target charge-discharge state corresponding to the battery pack is allowed to be charged and discharged when determining that the highest single battery voltage in the corresponding battery pack is less than or equal to 3.9V and the lowest single battery voltage in the corresponding battery pack is greater than or equal to 2.8V; the group management unit may determine that a target charge-discharge state corresponding to the battery group is charge prohibition when it is determined that the highest cell voltage of the battery group corresponding to the group management unit is less than or equal to 3.9V and the lowest cell voltage of the battery group corresponding to the group management unit is less than or equal to 2.5V, and may determine that the target charge-discharge state corresponding to the battery group is charge prohibition when it is determined that the highest cell voltage of the battery group corresponding to the group management unit is greater than or equal to 4.2V and the lowest cell voltage of the battery group corresponding to the group management unit is less than or equal to 2.5V.

Further, a method of determining the operating state of the dc chopper itself based on the second local control instruction will be described. Optionally, the working states of the dc chopper may be at least divided into a hot standby state, a charging state, a discharging state, and a shutdown state, and the four working states may be determined by the bus voltage and the second local control instruction. Specifically, when the target charge-discharge state corresponding to the second local control instruction is charge prohibition and discharge permission, and the bus voltage is greater than 265V, the DC/DC converter may determine that the working state of the DC/DC converter is a hot standby state, when the target charge-discharge state corresponding to the second local control instruction is charge prohibition and discharge permission, and the bus voltage is greater than 265V, the DC chopper may determine that the working state of the DC/DC converter is a charged state, when the target charge-discharge state corresponding to the second local control instruction is charge prohibition and discharge permission and the mains supply is powered down or the bus voltage is less than or equal to 265V, the DC chopper may determine that the working state of the DC/DC converter is updated from the hot standby state or the charged state to a discharged state, and when the target charge-discharge state corresponding to the second local control instruction is charge prohibition and discharge permission, the DC chopper may determine that the working state of the DC/DC converter is off. And when a plurality of groups of battery packs are simultaneously in a state of allowing charging and discharging or allowing charging and discharging, the battery packs cannot be charged simultaneously, only 1 group of battery packs can be independently charged, and the direct current choppers corresponding to other battery packs except the group are set to be in a hot standby state, so that the condition that the power supply can respond to discharging in time when abnormal is met. In addition, the auxiliary power supply of the dc chopper is taken from the bus side when the dc chopper is in a hot standby state, from the bus side when the dc chopper is in a charging state, from the bus side when the dc chopper is in a shutdown state, and from the battery pack side when the dc chopper is in a discharging state.

Specifically, in an optional application scenario, the group management unit will independently describe the control method of the dc chopper corresponding to the normal battery group based on the battery operation data of the battery group. In a normal state, the direct current chopper outputs a fixed voltage (265V) to the bus, and in a hot backup state, the pack management unit may determine whether to start the direct current chopper according to battery operation data of the corresponding battery pack. Optionally, when the group management unit determines that the battery pack is to be charged based on the battery operation data of the corresponding battery pack, it determines that the target charge-discharge state of the battery pack is a charge prohibition state or a charge permission state, so that a second local control instruction may be sent to the corresponding dc chopper through the controller local area network bus, so that the operating state of the dc chopper is converted into a charging state, and in addition, the group management unit may also send charging parameters (such as voltage and current) to the dc chopper, so that the dc chopper can safely charge the battery pack. After the charging is completed, the group management unit may send a second local control instruction to the dc chopper, so that the dc chopper is switched from the charging state to the hot standby state.

Optionally, in the charging process, each dc chopper CAN send its own charging status bit to the CAN bus in real time to perform information interaction with other dc choppers except for itself, and when other dc choppers receive the information that the dc choppers are charging, the other dc choppers prohibit their own start of charging, so as to realize the charging mutual exclusion function between battery packs, and facilitate timely response to discharge when the utility power is abnormal. And during the operation of the direct current chopper, a heartbeat message can be sent between each pair of the group management units and the direct current chopper in real time so as to maintain a normal state, and if the group management units determine that the heartbeat message is abnormal, the group management units can send a local control instruction so as to control the corresponding direct current chopper to be shut down.

Example 3

According to an embodiment of the present application, an embodiment of a battery management system is provided, and fig. 4 is a schematic diagram of an alternative battery management system according to an embodiment of the present application, as shown in fig. 4, the battery management system includes:

a plurality of battery packs; the local battery management system at least comprises a plurality of group management units, and each group management unit is used for controlling the charge and discharge state of a battery pack; and the end battery management system is connected with the local battery management system and used for acquiring the battery operation data of each battery pack and sending a target control instruction to at least one group management unit based on the battery operation data so that the at least one group management unit controls the charge and discharge state of the battery pack corresponding to the group management unit based on the target control instruction, wherein the group management units correspond to the battery packs one to one.

In this embodiment, the pack management unit may control the charge and discharge states of the battery pack through the voltage controller, and the voltage controller and the battery pack may have a one-to-one correspondence relationship. Alternatively, the aforementioned voltage controller may be a direct current chopper (DC/DC), and an alternative battery management system according to the embodiment of the present application is described with reference to fig. 4, 5, and 6. As shown in fig. 4, 5 and 6, the battery pack a, the battery pack B, \8230andthe battery pack N may constitute a battery system to be used as a backup power source or an energy storage source of a data center (i.e., a server shown in fig. 5 or 6). Specifically, as shown in fig. 4, the group management unit a-dc chopper and the group management unit N-dc chopper are connected to the input terminals of different battery packs, and each dc chopper is connected to a bus of the high-voltage dc transmission device, and each dc chopper can control the charge and discharge state of the battery pack corresponding to the dc chopper based on its own operating state. The battery pack may be a lithium ion battery pack, each battery pack may include a plurality of single batteries, the DC chopper may be a bidirectional DC chopper, as shown in fig. 5, the high-voltage DC transmission device (i.e., the high-voltage DC transmission device cabinet in fig. 5) may include an AC power distribution module, an AC-DC converter (AC/DC), a DC power distribution module, and a high-voltage DC transmission device main control module, and the high-voltage DC transmission device main control module is configured to control the modules to rectify AC power into DC power, so as to supply power to the battery pack through the DC chopper. Wherein the aforementioned ac-dc converter is also the rectifier in fig. 5, the aforementioned hvdc transmission equipment master control module is also the master control shown in fig. 5 and 6, and the dashed lines in fig. 6 and 7 are used to indicate information connections and the solid lines are used to indicate electrical connections.

Optionally, as shown in fig. 4, the local battery management system at least includes a plurality of group management units, and may further include a plurality of acquisition units, and the local battery management system, the plurality of battery groups, and the dc chopper may be disposed in the battery cabinet as shown in fig. 5. Specifically, the collection units correspond to the single batteries in the battery pack one to one, and as shown in fig. 4, the collection units A1 to An correspond to the single batteries 1 to N in the battery pack a, respectively, and the collection units N1 to Nn correspond to the single batteries 1 to N in the battery pack N, respectively. The acquisition unit is used for monitoring the voltage, the temperature, the current and other data of the single battery corresponding to the acquisition unit so as to be acquired by the group management unit corresponding to the acquisition unit, so that the group management unit can acquire the battery operation data of the battery pack, wherein the battery operation data is used for representing the operation data of each battery contained in the battery pack.

Further, different group management units are used for managing the direct current choppers corresponding to different battery groups, and the direct current choppers exchange information with the direct current choppers to achieve charging and discharging management and protection of the corresponding battery groups. Specifically, each group of management units can realize management of the dc chopper based on at least one of active control and passive control. In the process that the group management unit manages the dc chopper based on the active control manner, each group management unit may directly determine a part of the battery State information of the battery group based on the battery operation data of the battery group, for example, directly use the voltage of each battery in the battery operation data as the battery State information, and each group management unit may indirectly determine another part of the battery State information of the battery group based on the battery operation data of the battery group, for example, determine the battery remaining capacity (SOC, state of Charge), the battery Health (SOH, state of Health) and the like of each battery based on the voltage, current and the like of each battery in the battery operation data. Therefore, the group management unit can actively control the working state of the direct current chopper corresponding to the battery group based on the battery state information of the battery group, wherein the working state of the direct current chopper can be a charging state, a discharging state, a hot standby state and a shutdown state, and the battery state information is at least used for representing the running state of each battery contained in the battery group. In the process that the group management unit manages the direct current chopper based on a passive control mode, the group management unit can acquire a control instruction output by a user or other systems, so that the control of the working state of the direct current chopper corresponding to the battery pack is realized based on the control instruction.

Further, as shown in fig. 4, the local battery management system may further include a sleeve management unit. The management unit may at least obtain battery operation data, battery state information, control information of the dc chopper, and the like sent by the group management unit, and may collect the above information to perform the uplink communication shown in fig. 6 through a Network (Network) interface, for example, the management unit uploads the above information to an upper level monitor (power monitoring system) shown in fig. 4 based on a Modbus-TCP communication protocol. As shown in fig. 4 and 5, the group management unit and the sleeve management unit, the group management unit and the dc chopper, and the dc chopper may all communicate via a controller local area network, and as shown in fig. 4 and 6, the sleeve management unit may further communicate with the high-voltage dc transmission device via an RS485 communication interface by using a Modbus-RTU communication protocol, so as to implement interaction of information such as charging conditions, charging and discharging limits, and full charge and disconnection. In addition, as shown in fig. 6, the high voltage dc power transmission device may also perform the on-line communication through a network interface, for example, the high voltage dc power transmission device performs data interaction with the power monitoring system shown in fig. 4 through a Modbus-TCP communication protocol, and the power monitoring system may be a host system in a scenario where the battery pack and the local battery management system are applied. The Modbus-RTU communication protocol is an open serial protocol.

Optionally, after the set management unit obtains at least the battery operation data and the battery state information sent by each set of management units, and the control information of the set management unit to the dc chopper, the set management unit may perform the on-line communication shown in fig. 6 based on the Modbus-TCP communication protocol through the network interface, so as to upload the information to the remote battery management system shown in fig. 4, so that the remote battery management system obtains the battery operation data of each battery set. As shown in fig. 7, an exchange may be connected between the remote battery management system and the hvdc transmission equipment and the casing management unit.

Further, after the far-end battery management system acquires the information uploaded by the sleeve management unit, the far-end battery management system at least can store the acquired battery operation data, and can determine more accurate battery state information of each battery pack based on a preset model and the battery operation data of each battery pack, so that an abnormal battery pack and abnormal information corresponding to the abnormal battery pack are determined from the plurality of battery packs based on the determined battery state information of each battery pack. Optionally, the remote battery management system may further perform calculation based on a preset model and in combination with at least one of currently received battery operation data of a certain battery pack, feature information of each battery in the battery pack, and stored historical battery operation data of the battery pack, to determine more accurate battery state information of the battery pack, thereby determining an abnormal battery pack and abnormal information corresponding to the abnormal battery pack, and generating a corresponding target control instruction based on the abnormal information. The preset model may be a neural network model.

Further, after the target control instruction is generated, as shown in fig. 4, the remote battery management system may send the target control instruction to the group management unit corresponding to the abnormal battery pack through the high voltage direct current power transmission device and the sleeve management unit in sequence via the Modbus-TCP communication protocol, or send the target control instruction to the group management unit corresponding to the abnormal battery pack directly via the sleeve management unit via the Modbus-TCP communication protocol, so that the group management unit controls the operating state of the direct current chopper corresponding to the group management unit based on the target control instruction. The high-voltage direct-current transmission equipment can adjust the output power of the high-voltage direct-current transmission equipment based on the target control instruction.

In the embodiment of the application, a mode of determining and safely managing abnormal battery packs of a plurality of battery packs based on a remote battery management system is adopted, the abnormal battery packs of the plurality of battery packs are determined and safely managed based on the remote battery management system, and the remote battery management system is provided with the plurality of battery packs, a local battery management system at least comprising a plurality of pack management units and the remote battery management system, so that each pack management unit is used for controlling the charging and discharging states of the battery packs, the remote battery management system is used for acquiring battery operation data of each battery pack and sending a target control instruction to at least one pack management unit based on the battery operation data, so that the at least one pack management unit controls the charging and discharging states of the battery packs corresponding to the pack management unit based on the target control instruction, wherein the pack management units are in one-to-one correspondence with the battery packs.

It is easy to notice that, in the above process, by setting the remote battery management system, it is ensured that when the local battery management system causes data sampling abnormality due to hardware failure, the remote battery management system can timely find the abnormality and generate a target control instruction, so that the corresponding battery pack can be timely stopped, safety problems such as thermal runaway and the like are avoided, and the operation safety of the battery pack is effectively improved. In addition, in the process of determining the battery state information based on the battery operation data, the local battery management system has the problems of insufficient data storage capacity and insufficient calculation capacity, cannot accurately estimate parameters such as the residual electric quantity and the health degree of the battery, and easily causes the overcharge and the overdischarge of the battery in the battery pack, so that the battery pack has the problems of low energy utilization efficiency or excessive energy use, further asset waste or asset safety risk and the like. Therefore, by arranging the far-end battery management system, the far-end battery management system can determine more accurate battery state information based on the battery operation data of each battery pack based on the expandability and high-performance calculation of the far-end battery management system, so that the safety problem of the battery pack can be found in time, a target control instruction is determined to effectively control the charging and discharging states of the battery pack, and the operation safety of the battery pack is further improved.

It should be noted that, in the present application, on one hand, by setting the voltage controllers and the battery packs in a one-to-one correspondence, separate management of the charging and discharging states of different battery packs is achieved, thereby facilitating implementation of targeted control on abnormal battery packs, and further effectively improving the operation safety of the battery packs, and on the other hand, by setting the group management units and the battery packs in a one-to-one correspondence, the problem that when all battery packs are managed by using the same group management unit, if a problem occurs in the group management unit, the working states of all voltage controllers are all out of control, and further the charging and discharging states of all battery packs are all out of control is avoided, so that the operation safety of the battery packs can be further improved.

In an alternative embodiment, the battery system formed by the battery pack may be a single-phase immersion liquid cooling battery system. Specifically, as shown in fig. 5, a plurality of battery packs are immersed in a liquid cylinder in which an insulating and non-flammable liquid is disposed.

The single-phase immersion liquid cooling is a cooling mode that the battery pack is completely immersed in a liquid cylinder containing insulating cooling liquid, and the cooling liquid absorbs heat of the battery pack, only heats up without phase change, and then transfers the heat to the external environment. Alternatively, the direct current chopper can be arranged in an air cooling mode and isolated from the hydraulic cylinder, and the local battery management system and the high-voltage direct current transmission equipment do not need to be immersed in liquid. In addition, a liquid level meter, a high-low region temperature sensor, a conductivity sensor and the like can be arranged in the hydraulic cylinder, and a safety valve can be arranged on the cylinder body of the hydraulic cylinder to ensure the safe operation of the battery pack.

It should be noted that, by immersing the battery pack in the insulating and non-flammable liquid, the battery pack can be isolated from the external severe environment, and meanwhile, the battery pack can also be efficiently cooled to prevent heat spreading.

In an optional embodiment, the battery management system may further include a backup battery pack, and a dc chopper and a pack management unit corresponding to the backup battery pack, where when a single battery pack in the foregoing multiple battery packs fails, the backup battery pack may operate in place of the failed battery pack to ensure normal power supply or energy storage for the data center or other equipment, and the failed battery pack may be maintained by being drawn out of the hydraulic cylinder.

Example 4

The present application also provides a battery management method as shown in fig. 8, including the steps of:

step S802: and responding to a detection instruction for detecting the plurality of battery packs, and displaying an abnormal battery pack and abnormal information corresponding to the abnormal battery pack on a graphical user interface, wherein the abnormal battery pack and the abnormal information corresponding to the abnormal battery pack are determined by the remote battery management system based on the battery operation data of each battery pack.

In step S802, the client is an execution subject of the method provided in this embodiment, and in a graphical user interface of the client, the battery operation data of each battery pack in the plurality of battery packs may be displayed in the form of pictures or characters.

Optionally, the remote battery management system may obtain, through a network interface, the battery operation data of each battery pack in the plurality of battery packs that is uploaded by the bushing management unit based on the Modbus-TCP communication protocol, so as to feed back, to the client, the battery operation data of each battery pack in the plurality of battery packs at least to be displayed. Optionally, the remote battery management system may further obtain information, such as battery state information corresponding to each battery pack uploaded by the sleeve management unit, and control information of the pack management unit to the voltage controller. The voltage controller may be a dc chopper, specifically, a bidirectional dc chopper, and the battery state information corresponding to each battery pack, the control information of the dc chopper by the pack management unit, and the like may be determined by the pack management unit corresponding to the battery pack.

In step S802, the client may determine battery state information of each battery pack based on a preset model and battery operating data of each battery pack by using the remote battery management system in response to a detection instruction for detecting the plurality of battery packs by the target object, so as to determine an abnormal battery pack and abnormal information corresponding to the abnormal battery pack from the plurality of battery packs. Optionally, the client may also determine, by using the remote battery management system, the battery state information of the battery pack based on a preset model in combination with the battery operation data of a certain battery pack, and at least one of the feature information of each battery in the battery pack and the stored historical battery operation data of the battery pack, so as to determine an abnormal battery pack and abnormal information corresponding to the abnormal battery pack from the plurality of battery packs.

Further, the remote battery management system may feed back the determined abnormal battery pack and the abnormal information corresponding to the abnormal battery pack to the client for display.

Step S804: and responding to an adjusting instruction for adjusting the abnormal battery pack, and adjusting the charging and discharging state of the abnormal battery pack, wherein the charging and discharging state of the abnormal battery pack is adjusted by a target pack management unit based on a target control instruction, the target control instruction is generated by a far-end battery management system based on abnormal information, the pack management units correspond to the battery packs one to one, and the target pack management unit is a pack management unit corresponding to the abnormal battery pack.

In step S804, the client may respond to the adjustment instruction for the target object to adjust the abnormal battery pack, so as to determine the abnormal problem and the abnormal data of the abnormal battery pack based on the abnormal information of the abnormal battery pack by using the remote battery management system, and generate a corresponding target control instruction. Then, the remote battery management system may send the target control instruction to the group management unit corresponding to the abnormal battery pack sequentially through the high-voltage direct-current power transmission device and the sleeve management unit, or send the target control instruction to the group management unit corresponding to the abnormal battery pack directly through the sleeve management unit, so that the group management unit controls the working state of the direct-current chopper corresponding to the group management unit based on the target control instruction, thereby implementing adjustment of the charging and discharging state of the abnormal battery pack. The high-voltage direct-current transmission equipment can adjust the output power of the high-voltage direct-current transmission equipment based on the target control instruction.

Step S806: and displaying the adjusted charging and discharging states of the abnormal battery pack on a graphical user interface.

In step S806, the remote battery management system may obtain the updated charge and discharge state of the abnormal battery pack fed back by the pack management unit corresponding to the abnormal battery pack, and feed the updated charge and discharge state back to the client for display by the target object.

In an alternative embodiment, an alternative interaction between the battery management system and the client at the time of application is illustrated as shown in fig. 9. Specifically, as shown in fig. 9, the local battery management system, the switch, and the battery pack may form a data acquisition end, and in the data acquisition end, the local battery management system may acquire battery operation data of the battery pack in real time, calculate battery state information, and determine whether an abnormal battery pack exists according to the battery state information, so that when an abnormal battery pack exists, the abnormal information and an alarm prompt (i.e., an alarm segment in fig. 9) are generated, and the battery operation data and the determined abnormal battery pack, the abnormal information, and the alarm prompt may be uploaded to the remote battery management system through the switch in real time. Optionally, the remote battery management system may obtain data uploaded by the local battery management system through the data gateway, and sequentially store the data in the data warehouse in a message queue manner, so that a background service system in the remote battery management system performs calculation or analysis, and further more accurately determine the abnormal battery pack and the abnormal information. In addition, the far-end battery management system can send the obtained battery operation data, the determined abnormal battery pack and the abnormal information to the client in real time, so that the client can display the abnormal battery pack and the abnormal information through a graphical user interface. In addition, the user can also input a data query instruction to the user side, so that the client side responds to the data query instruction of the user and sends a processing request to the remote battery management system, and a query result fed back by the remote battery management system is obtained.

In the embodiment of the application, a mode of determining an abnormal battery pack in a plurality of battery packs based on a remote battery management system and performing safety management is adopted, battery operation data of each battery pack in the plurality of battery packs is displayed on a graphical user interface, then the abnormal battery pack and abnormal information corresponding to the abnormal battery pack are displayed on the graphical user interface in response to a detection instruction for detecting the plurality of battery packs, then a management instruction for performing safety management on the abnormal battery pack is responded, the charging and discharging state of the abnormal battery pack is updated, and the updated charging and discharging state of the abnormal battery pack is displayed on the graphical user interface. The abnormal battery pack and the abnormal information corresponding to the abnormal battery pack are determined by the remote battery management system based on the battery operation data of each battery pack, the charging and discharging state of the abnormal battery pack is updated by the target battery management unit based on the target control instruction, the target control instruction is generated by the remote battery management system based on the abnormal information, and the target battery management unit is the battery management unit corresponding to the abnormal battery pack.

It is easy to notice that, in the above process, by setting the remote battery management system, it is ensured that when the local battery management system causes data sampling abnormality due to hardware failure, the remote battery management system can find the abnormality in time and generate a target control instruction, so that the corresponding battery pack can be stopped in time, safety problems such as thermal runaway are avoided, and the operation safety of the battery pack is effectively improved. In addition, in the process of determining the battery state information based on the battery operation data, the local battery management system has the problems of insufficient data storage capacity and insufficient calculation capacity, parameters such as the residual capacity and the health degree of the battery cannot be accurately estimated, and the battery in the battery pack is easily overcharged and overdischarged, so that the battery pack has the problems of low energy utilization efficiency or excessive energy use, and further has the problems of asset waste or asset safety risk and the like. Therefore, by arranging the far-end battery management system, the far-end battery management system can determine more accurate battery state information based on the battery operation data of each battery pack based on the expandability and high-performance calculation of the far-end battery management system, so that the safety problem of the battery pack can be found in time, a target control instruction is determined to effectively control the charging and discharging state of the battery pack, and the operation safety of the battery pack is further improved.

Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present application may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method of the embodiments of the present application.

The embodiment of the application further provides the electronic equipment which can be any one computer terminal equipment in the computer terminal group. Alternatively, in this embodiment, the electronic device may be replaced with a terminal device such as a mobile terminal. The electronic device includes one or more processors; memory to store one or more programs that, when executed by the one or more processors, cause the one or more processors to implement for executing the programs.

Embodiments of the present application also provide a computer-readable storage medium. Alternatively, in this embodiment, the storage medium may be configured to store program codes executed by the battery management methods provided in embodiments 1, 2, and 3.

The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.

In the above embodiments of the present application, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed technology can be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a division of a logic function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, units or modules, and may be in an electrical or other form.

The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A battery management method is applied to a remote battery management system and comprises the following steps:

acquiring battery operation data of each battery pack in a plurality of battery packs;

determining an abnormal battery pack and abnormal information corresponding to the abnormal battery pack based on the battery operation data of each battery pack;

generating a target control instruction corresponding to the abnormal information;

and sending the target control instruction to a target group management unit so that the target group management unit updates the charge and discharge state of the abnormal battery pack based on the target control instruction, wherein the target group management unit is a group management unit corresponding to the abnormal battery pack.

2. The battery management method according to claim 1, wherein determining an abnormal battery pack and abnormal information corresponding to the abnormal battery pack based on the battery operation data of each of the battery packs includes:

determining battery state information of each battery pack based on the characteristic information of each battery pack, the battery operation data and historical battery operation data;

determining the abnormal battery pack and abnormal information corresponding to the abnormal battery pack based on the battery state information of each battery pack.

3. The battery management method according to claim 1, wherein generating a target control command corresponding to the abnormality information includes:

determining a priority of the abnormal information based on the abnormal type of the abnormal information, wherein the priority represents the risk degree of the abnormal information;

if the priority is greater than or equal to a preset priority, generating a first target control instruction corresponding to the abnormal information;

and if the priority is smaller than the preset priority and the information representing that the abnormal information is solved is not received within the preset time, generating a second target control instruction corresponding to the abnormal information.

4. The battery management method according to claim 2, wherein determining the abnormal battery pack based on the battery state information of each battery pack includes at least one of:

when it is determined that the current battery pack has a target safety risk based on temperature data of batteries included in the current battery pack, determining that the current battery pack is the abnormal battery pack, wherein the current battery pack is any one of the plurality of battery packs, and the battery state information at least comprises the temperature data of the batteries included in the current battery pack;

when the current battery pack is determined not to be charged or discharged within a preset time period based on the charging and discharging time of the battery contained in the current battery pack, determining that the current battery pack is the abnormal battery pack, wherein the battery state information at least comprises the charging and discharging time of the battery contained in the current battery pack, which is charged or discharged last time;

and when the running state consistency of the batteries contained in the current battery pack is determined not to meet the preset condition based on the voltages of the batteries contained in the current battery pack, determining that the current battery pack is the abnormal battery pack, wherein the battery state information at least comprises the voltages of the batteries contained in the current battery pack.

5. The battery management method according to any one of claims 1 to 4, wherein the group management units correspond to the battery packs one to one, and the battery packs are lithium ion battery packs.

6. A battery management method is applied to a local battery management system and comprises the following steps:

the method comprises the steps of obtaining battery operation data of each battery pack in a plurality of battery packs, and sending the battery operation data of each battery pack to a remote battery management system;

a control target group management unit receives a target control instruction returned by a remote battery management system, wherein the target group management unit is a group management unit corresponding to an abnormal battery pack, the abnormal battery pack is determined by the remote battery management system based on battery operation data of each battery pack, and the target control instruction is generated by the remote battery management system based on abnormal information corresponding to the abnormal battery pack;

and controlling the target group management unit to update the charge and discharge state of the abnormal battery pack based on the target control instruction.

7. The battery management method according to claim 6, wherein controlling the target group management unit to update the charge-discharge state of the abnormal battery group based on the target control instruction comprises:

and if the abnormal battery pack is the battery pack with the target safety risk, controlling the target pack management unit to close a voltage controller corresponding to the target pack management unit based on the target control instruction so as to update the charging and discharging states of the abnormal battery pack, wherein the pack management units correspond to the battery packs one to one, and the voltage controllers correspond to the battery packs one to one.

8. The battery management method according to claim 6, wherein controlling the target group management unit to update the charge-discharge state of the abnormal battery group based on the target control instruction comprises:

and if the abnormal battery pack is a battery pack which is not charged or discharged within a preset time, controlling the target pack management unit to control a voltage controller corresponding to the target pack management unit to execute charging and discharging circulation operation on the abnormal battery pack based on the target control instruction so as to update the charging and discharging state of the abnormal battery pack.

9. The battery management method of claim 6, further comprising:

acquiring battery operation data of each battery pack;

and updating the charging and discharging state of the abnormal battery pack based on the abnormal information, and sending target information to the remote battery management system so that the remote battery management system does not generate the target control instruction, wherein the target information is used for representing that the abnormal information is solved.

10. A battery management system, comprising:

a plurality of battery packs;

the local battery management system at least comprises a plurality of group management units, wherein each group management unit is used for controlling the charging and discharging state of the battery pack, and the group management units correspond to the battery packs one to one;

and the remote battery management system is connected with the local battery management system and used for acquiring the battery operation data of each battery pack and sending a target control instruction to at least one group management unit based on the battery operation data so that the at least one group management unit controls the charge and discharge state of the battery pack corresponding to the group management unit based on the target control instruction.

11. The battery management system of claim 10, further comprising:

the battery pack management system comprises a plurality of voltage controllers, wherein the pack management unit controls the charging and discharging states of the battery packs through the voltage controllers, and the voltage controllers correspond to the battery packs one to one.

12. A battery management method, comprising:

responding to a detection instruction for detecting a plurality of battery packs, and displaying an abnormal battery pack and abnormal information corresponding to the abnormal battery pack on a graphical user interface, wherein the abnormal battery pack and the abnormal information corresponding to the abnormal battery pack are determined by a remote battery management system based on battery operation data of each battery pack;

responding to an adjusting instruction for adjusting the abnormal battery pack, and adjusting the charge-discharge state of the abnormal battery pack, wherein the charge-discharge state of the abnormal battery pack is adjusted by a target group management unit based on a target control instruction, the target control instruction is generated by the remote battery management system based on the abnormal information, and the target group management unit is a group management unit corresponding to the abnormal battery pack;

and displaying the adjusted charging and discharging states of the abnormal battery pack on the graphical user interface.

13. A computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the battery management method according to any one of claims 1 to 9 and 12 when the computer program runs.

14. An electronic device, wherein the electronic device comprises one or more processors; memory for storing one or more programs which, when executed by the one or more processors, cause the one or more processors to implement a method for running a program, wherein the program is arranged to perform, when running, the battery management method of any of claims 1 to 9, 12.