Management system for an energy storage system and energy storage system

Abstract

The application discloses a management system of an energy storage system and the energy storage system, and belongs to the field of energy storage systems. The management system of the energy storage system comprises a battery management unit and a storage module comprising at least two storage units, each of which is electrically connected with the battery management unit, and each of which is used for independently receiving and storing working data sent by the battery management unit. The management system of the energy storage system is provided with multiple independent storage units independent of the battery management unit, so as to synchronously store working data generated during the operation of the energy storage system, realize double backup of data, effectively prevent data loss, reduce the influence of thermal runaway of the battery management unit and a battery pack on the data storage module, further improve the data storage effect, meet rigid requirements such as accident tracing and cause analysis, ensure correct recovery after the system is powered on again, and guarantee the normal operation of the energy storage system.

Description

Technical Field

[0001] This application belongs to the field of energy storage systems, and particularly relates to a management system and an energy storage system. Background Technology

[0002] With the large-scale application of lithium-ion batteries in energy storage power stations and other fields, the demand for storage and traceability of battery pack operating data is increasing. In related technologies, the Battery Management System (BMS) generally uses E2PROM, SD, or FLASH as local data storage media. In the event of thermal runaway or other abnormal power loss of the battery pack, physical data loss is easily caused, which cannot meet the rigid requirements for accident tracing and cause analysis. Summary of the Invention

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a management system and an energy storage system for an energy storage system, achieving dual data backup and effectively preventing data loss.

[0004] In a first aspect, this application provides a management system for an energy storage system, the management system comprising: Battery Management Unit; The storage module includes at least two storage units, each of which is electrically connected to the battery management unit, and each of which is used to independently receive and store the working data sent by the battery management unit.

[0005] According to the energy storage system management system of this application, multiple independent storage units, independent of the battery management unit, are set up to synchronously store the working data generated by the operation of the energy storage system, realize dual data backup, effectively prevent data loss, and reduce the impact of thermal runaway of the battery management unit and battery pack on the data storage module, further improve the data preservation effect, meet the rigid requirements of accident tracing and cause analysis, ensure that the system can be correctly restored after power-on, and ensure the normal operation of the energy storage system.

[0006] According to one embodiment of this application, each of the storage cells performs independent writing and counts failures in the event of a writing failure. When the number of consecutive failures reaches a target number, a fault handling strategy corresponding to the storage cell whose failure count has reached the target number is executed.

[0007] According to one embodiment of this application, when the number of consecutive failures of the primary storage unit in the at least two storage units reaches a target number, the secondary storage unit in the at least two storage units is switched to the primary storage unit, and an alarm message is output.

[0008] According to one embodiment of this application, the primary storage unit before the switch retains the original stored data.

[0009] According to one embodiment of this application, after the switch from the primary storage unit to the secondary storage unit, the switched primary storage unit is configured to prevent switchback.

[0010] According to one embodiment of this application, after the switch from the primary storage unit to the secondary storage unit, and if the consecutive failure count of the primary storage unit reaches a target number, the energy storage system stops operating and outputs an alarm message.

[0011] According to one embodiment of this application, when the number of consecutive failures from the storage cells in the at least two storage cells reaches a target number, an alarm message is output.

[0012] According to one embodiment of this application, the outer casing of the storage module is provided with a protective device; the protective device includes: A housing, wherein the storage module is disposed within the housing; A heat insulation layer is attached to the inside of the housing.

[0013] According to one embodiment of this application, the protection device includes: A filler material is placed between the insulation layer and the storage module; the filler material is a refractory material.

[0014] According to the energy storage system management system of this application, by setting up a protective device with fireproof and waterproof functions covering the storage module, the storage module can be effectively protected, reducing the impact of battery thermal runaway and other factors on the storage module, ensuring the data stored in the storage module, further preventing data loss, meeting the rigid requirements of accident tracing and cause analysis, ensuring that the system can be correctly restored after power-on, and ensuring the normal operation of the energy storage system. Secondly, this application provides an energy storage system, which includes: Energy storage devices; The management system of the energy storage system as described in the first aspect is electrically connected to the energy storage device.

[0015] According to the energy storage system of this application, by setting up multiple independent storage units independent of the battery management unit, the working data generated by the operation of the energy storage system is stored synchronously, realizing dual data backup and effectively preventing data loss; it can also reduce the impact of thermal runaway of the battery management unit and battery pack on the data storage module, further improve the data preservation effect, meet the rigid requirements of accident tracing and cause analysis, ensure that the system can be correctly restored after power-on, and ensure the normal operation of the energy storage system.

[0016] The above-described one or more technical solutions in the embodiments of this application have at least one of the following technical effects: By setting up multiple independent storage units separate from the battery management unit, the working data generated by the energy storage system is stored synchronously, achieving dual data backup and effectively preventing data loss. It can also reduce the impact of thermal runaway of the battery management unit and battery pack on the data storage module, further improving the data preservation effect, meeting the rigid requirements of accident tracing and cause analysis, ensuring that the system can be correctly restored after power-on, and ensuring the normal operation of the energy storage system.

[0017] Furthermore, by setting up a protective device with fireproof and waterproof functions to cover the storage module, the storage module can be effectively protected, reducing the impact of battery thermal runaway on the storage module, ensuring the data stored in the storage module, further preventing data loss, meeting the rigid requirements of accident tracing and cause analysis, ensuring that the system can be correctly restored after power-on, and ensuring the normal operation of the energy storage system.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the management system of the energy storage system provided in the embodiments of this application; Figure 2 This is a second schematic diagram of the structure of the management system of the energy storage system provided in the embodiments of this application; Figure 3 This is one of the schematic diagrams illustrating the execution logic of the management system of the energy storage system provided in the embodiments of this application; Figure 4 This is the second schematic diagram of the execution logic of the management system of the energy storage system provided in the embodiments of this application. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0021] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0022] The management system and energy storage system of the energy storage system provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0023] like Figure 1 As shown, the management system of the energy storage system includes a battery management unit 120 and a storage module 110.

[0024] The Battery Management Unit (BMU) 120 is used for data acquisition, status monitoring, equalization control, and safety protection of individual or group battery cells. In some embodiments, the Battery Management Unit 120 is connected to the main control module via a communication interface.

[0025] like Figure 2 As shown, the storage module 110 includes at least two storage units 111, each of which is electrically connected to the battery management unit 120. Each storage unit 111 is used to independently receive and store the working data sent by the battery management unit 120.

[0026] The storage unit 111 can be a storage chip, such as a non-volatile memory chip (Flash), an electrically erasable programmable read-only memory (EEPROM), a non-volatile static random access memory (NVSRAM), a resistive random access memory (ReRAM), etc.

[0027] The battery management unit 120 and the storage module 110 can be independently configured units. The battery management unit 120 can be located inside or outside the battery pack, and the storage module 110 can also be located inside or outside the battery pack.

[0028] The storage modules 110 include multiple storage units 111, which can all be located inside the storage modules 110.

[0029] In some embodiments, of the plurality of storage units 111 included in the storage module 110, some storage units 111 are disposed inside the storage module 110, while others are independently disposed outside the storage module 110. For example... Figure 2 As shown, in some embodiments, two storage units 111 are disposed inside the storage module 110 and are disposed independently from the battery management unit 120 as external storage, while another storage unit 111 is disposed inside the battery management unit 120. This storage unit 111 can be the motherboard storage built into the battery management unit 120.

[0030] It should be noted that in this application, at least one storage unit 111 should be set independently from the battery management unit 120.

[0031] In actual execution, each storage unit 111 performs synchronous write operations independently without affecting the judgment, and the data in each storage unit 111 remains consistent.

[0032] In some embodiments, the electrical connection may include a communication connection, and the communication connection method includes, but is not limited to, communication connection methods such as I2C or SPI bus.

[0033] The operating data includes, but is not limited to: the operating parameters of each battery pack or individual battery cell during the operation of the energy storage system, including: state of charge, state of health, battery temperature, number of cycles, voltage, current, power, etc.; environmental parameters of the battery pack or individual battery cell, including: ambient temperature, humidity, etc.; fault information at various levels during operation and other parameters.

[0034] In some embodiments, the battery management unit 120 can send working data to each storage unit 111 based on a target time interval, and the storage unit 111 performs a write operation upon receiving the working parameters. The target time interval can be set based on a user-defined setting.

[0035] In some embodiments, the battery management unit 120 is configured to: when the detected change in working data is greater than a first threshold, send the working data to each storage unit 111 for writing by the storage unit 111.

[0036] In this embodiment, the first threshold can be set based on a user-defined setting. The first thresholds for different categories of work data can be the same or different. During actual execution, if the change in any category of work data is detected to be greater than the first threshold, writing work data for that category or all categories of work data can be triggered.

[0037] For example, during actual operation, the BMU continuously collects real-time operating data such as voltage, current, and temperature of the battery module, and processes and analyzes this data. The BMU saves the current operating data in real time, and operating parameters such as SOC and SOH are periodically written to the storage unit 111 after a certain amount of change to ensure that critical data is not lost in the event of an unexpected power outage.

[0038] like Figure 3 As shown, in some embodiments, a data write operation is immediately triggered whenever the SOC value changes by 1%, thereby ensuring timely storage of critical state changes.

[0039] In some embodiments, if the state of charge of the energy storage system is less than the second threshold, it indicates that the energy storage battery has low charge or has reached the minimum discharge threshold, and a data write operation can be triggered at this time.

[0040] In some embodiments, the battery management unit 120 is configured to: send the current operating data to each storage unit 111 for writing by the storage unit 111 before the energy storage system is powered off and / or before the energy storage system undergoes a firmware upgrade.

[0041] In this embodiment, before the system is about to shut down, experiences an abnormal power outage, or undergoes a firmware upgrade, the BMU can perform a forced write operation to save the latest operating status and calculation data to the storage unit 111, preventing data loss and ensuring that the system can be correctly restored after power-on.

[0042] In some embodiments, the battery management unit 120 is configured to: trigger over-temperature, over-voltage, and over-current alarms in the energy storage system, and trigger a write operation.

[0043] In some embodiments, the storage module 110 is configured to: read the target storage address when the energy storage system is turned on, and determine the main storage unit from at least two storage units 111 based on the target storage address.

[0044] In this embodiment, the target memory address can be the on-chip Flash activeFlash flag bit (1 byte) of the MCU. The flag corresponding to the target memory address is used to identify the currently configured main memory unit.

[0045] Taking multiple storage units 111 including chip A and chip B as an example, if chip A is the initial master storage unit and chip B is the initial slave storage unit, then the flag 0xFF corresponds to chip A and the flag 0x00 corresponds to chip B.

[0046] In some embodiments, the storage unit 111 configured as the initial master storage unit may be a motherboard memory, and the storage unit 111 configured as the initial slave storage unit may be an external memory.

[0047] It should be noted that the type of storage unit 111 corresponding to each storage module 110 can be switched according to the write situation during subsequent operation, and only one switch is supported. For example, chip A can be switched to a slave storage unit and chip B can be switched to a master storage unit. However, it will not be possible to switch chip A back to the master storage unit or chip B back to the slave storage unit in the future.

[0048] In actual execution, after the MCU starts up, it reads the value of the activeFlash address in the on-chip Flash. If the Flash activeFlash flag (1 byte) is 0xFF, it indicates that the currently configured main memory unit is chip A; if the Flash activeFlash flag (1 byte) is 0x00, it indicates that the currently configured main memory unit is chip B.

[0049] It should be noted that the activeFlash in the on-chip Flash is only written once. Once it is changed from 0xFF to 0x00, it will not be possible to change it back. If you need to change it back, you should rewrite the flag.

[0050] According to the energy storage system management system provided in the embodiments of this application, multiple independent storage units 111 are set up to synchronously store the working data generated by the operation of the energy storage system, realize data backup, effectively prevent data loss, meet the rigid requirements of accident tracing and cause analysis, ensure that the system can be correctly restored after power-on, and ensure the normal operation of the energy storage system.

[0051] The write logic for each storage unit 111 is explained below.

[0052] In some embodiments, each storage cell 111 performs independent writing and counts failures in the event of a writing failure. When the number of consecutive failures reaches a target number, a fault handling strategy corresponding to the storage cell 111 whose failure count has reached the target number is executed.

[0053] In this embodiment, the target number of write failures can be set by the user, such as 2, 3, or 4 times. For each storage cell 111, a write failure is counted once. If there are consecutive failures, the count is incremented based on the previous count. If the next write is successful, the previous count is reset to zero. If the count reaches the target number, it is considered to have exceeded the allowable number of write failures, and the write failure of the storage cell 111 is confirmed to be abnormal.

[0054] It should be noted that the fault handling strategies after a write failure differ for different types of storage units 111, namely primary storage units or secondary storage units.

[0055] The fault handling strategies corresponding to the main storage unit include at least one of the following: outputting alarm information and switching the main storage unit.

[0056] The fault handling strategy corresponding to the storage unit includes: outputting alarm information.

[0057] In some embodiments, if the number of consecutive failures of the primary storage unit in at least two storage units 111 reaches a target number, the secondary storage unit in at least two storage units 111 is switched to the primary storage unit, and an alarm message is output.

[0058] In this embodiment, if the main storage unit experiences a write error, the secondary storage unit will be switched to the main storage unit, and an alarm message will be output.

[0059] In some embodiments, the primary storage unit before the switch retains the original stored data.

[0060] In some embodiments, after switching from a storage unit to a primary storage unit, the switched primary storage unit is configured to prevent switchback.

[0061] In this embodiment, prohibiting backswitching means prohibiting the current master storage unit from being switched to a slave storage unit again, and prohibiting the storage unit 111 that was previously switched from a master storage unit to a slave storage unit from being switched back to a master storage unit.

[0062] In some embodiments, if no switching operation has been performed on the primary storage unit and an abnormal write operation is determined in the primary storage unit, the secondary storage unit will be switched to the primary storage unit, and an alarm message will be output.

[0063] If a switching operation has been performed on the primary storage unit, and it is determined that the primary storage unit has an abnormal write operation, then a switching operation cannot be performed again, and only an alarm message will be output.

[0064] In some embodiments, an alarm message is output when the number of consecutive failures from the storage cells in at least two storage cells 111 reaches a target number.

[0065] In this embodiment, if an error occurs when writing to the storage unit, an alarm message is output.

[0066] In some embodiments, after switching from a storage unit to a primary storage unit, and if the consecutive failure count of the switched primary storage unit reaches a target number, the energy storage system stops operating and outputs an alarm message.

[0067] In this embodiment, stopping the energy storage system includes stopping all critical functions of the battery management unit 120, including but not limited to stopping charging and discharging operations and stopping data writing operations.

[0068] In actual operation, if the previous primary storage unit experiences a write failure, and after switching from storage unit to primary storage unit, the new primary storage unit experiences a write failure, it is assumed that both storage units 111 are abnormal. Continuing to run will increase the risk of complete data loss. In this case, a shutdown protection is executed, all critical BMS functions are stopped, the system enters a safe shutdown state, and manual maintenance is initiated.

[0069] The following example uses the initial primary storage unit as the motherboard Flash and the initial secondary storage unit as the external Flash to explain the switching logic in detail.

[0070] like Figure 4 As shown, the MCU starts up and reads the value of the activeFlash address in the on-chip Flash.

[0071] If the value is 0xFF, then select the motherboard Flash as the current primary storage.

[0072] If the value is 0x00, then select external Flash as the current primary storage.

[0073] If the value is any other illegal value, it will be treated as 0xFF (the motherboard flash memory is used by default), and an alarm will be recorded.

[0074] Initialize the two Flash drivers, ready for reading and writing.

[0075] The following write process is executed at runtime: Whenever BMS needs to write critical data: Write to the current main storage (depending on activeFlash).

[0076] Write to backup storage (another external storage device).

[0077] The two writes are independent of each other and do not affect the judgment.

[0078] This ensures that the data on the two Flash memory blocks remains consistent, eliminating the need for data migration after switching.

[0079] During the read / write process, the following failure counting and fault handling are performed synchronously: Maintain two separate failure counters (in RAM, reset upon power-on): The counter corresponds to the storage counting condition: The failCnt_main function accumulates when a write operation to the motherboard memory fails. Accumulates when failCnt_ext fails to write to external memory; Processing rules: For any successful write operation, the corresponding failure counter is reset to zero.

[0080] The failure handling of the two storage systems is independent of each other, but there is a priority.

[0081] If the current main storage unit is the motherboard Flash, and the motherboard Flash fails 3 times consecutively, then the following actions 1) to 4) will be executed. 1) Switch main memory to external storage; 2) Set the on-chip activeFlash to 0x00; 3) Output alarm information, such as the alarm "motherboard memory failure" reported above; 4) Do not clear motherboard data.

[0082] If the current main storage unit is the motherboard Flash, and the external Flash fails 3 times consecutively, only an alarm message will be output, such as the alarm "External memory write error" reported above. In this case, there is no need to switch, and the motherboard Flash will continue to run.

[0083] If the current primary storage unit is an external Flash that has already undergone one switchover, and the external Flash fails three times consecutively, then execute the following actions 5) and 6): 5) Output alarm information, such as the alarm "External memory failure" reported above; 6) System stops running (shutdown) When switching to external storage, if the external storage itself fails to write to the target number of times consecutively, it is considered that both storage devices are unreliable and continued operation will lead to complete data loss. In this case, the shutdown protection logic is executed, a serious fault code is recorded, all critical BMS functions are stopped (charging and discharging are stopped, data writing is stopped), and the system enters a safe shutdown state, requiring manual maintenance.

[0084] If the current main storage unit is an external Flash that has already been switched once, and the motherboard Flash fails three times in a row, only an alarm message such as "motherboard Flash write error" will be output. In this case, there is no need to switch, and the external Flash will continue to run.

[0085] According to the above execution strategy, switching or shutdown is only triggered when the current primary storage unit fails for the target number of consecutive times; when a secondary storage unit fails, only an alarm operation is performed, and there is no need to switch the primary storage.

[0086] According to the energy storage system management system provided in the embodiments of this application, data backup is achieved by setting a dual data backup control strategy, which can effectively prevent data loss, meet the rigid requirements of accident tracing and cause analysis, ensure that the system can be correctly restored after power-on, and ensure the normal operation of the energy storage system.

[0087] In some embodiments, the outer casing of the storage module 110 is provided with a protective device.

[0088] In this embodiment, the protective device is used to protect the storage module 110 from external impacts, etc. In some embodiments, the protective device is also used for waterproofing, fireproofing, heat insulation, etc.

[0089] like Figure 2 As shown, in some embodiments, the protective device includes a housing 113 and a heat insulation layer.

[0090] In this embodiment, a storage module 110 is disposed within the housing 113, and the housing 113 is used to protect the storage module 110. In some embodiments, the housing 113 is made of a metallic material, such as iron or aluminum. In some embodiments, the housing 113 is coated with a waterproof material.

[0091] The heat insulation layer is attached to the inside of the housing 113 for fireproofing and heat insulation.

[0092] In some embodiments, the insulation layer is composed of ceramic composite sheets, or it may be a heat-resistant and heat-insulating material with similar functions, such as heat-insulating silicone-based insulation cotton.

[0093] like Figure 2 As shown, in some embodiments, the protective device includes a filler material 112.

[0094] In this embodiment, the filler material 112 is filled between the heat insulation layer and the storage module 110, and the filler material 112 is a refractory material.

[0095] In some embodiments, the filler material 112 may be a colloid composed of epoxy potting compound; or it may be a refractory material with similar functions, such as boron-based epoxy potting compound. The filler material 112 may be injected after the PCBA is installed in the housing 113.

[0096] During the research and development process, the inventors discovered that with the large-scale application of lithium-ion batteries in energy storage power stations and other fields, battery pack thermal runaway accidents are showing an increasing trend year by year. Once thermal runaway occurs, the internal temperature of the battery pack can rise to over 600°C within minutes, accompanied by the splashing of high-temperature gases and corrosive electrolytes, causing circuit boards, wiring harnesses, and data storage devices to fail instantly. Post-accident cause analysis and liability determination heavily rely on critical operational data recorded by the battery management system before and after the thermal runaway is triggered.

[0097] However, the relevant technologies have the following significant drawbacks: The storage media lacks sufficient resistance to high temperatures and humidity. Currently, BMS commonly uses E2ROM, SD, or FLASH as local data storage media. Their plastic encapsulation and conventional FR-4 substrates are prone to physical data loss when exposed to 600°C flames or high-temperature electrolytes. Physical protection is insufficient. Some manufacturers place memory cards in small metal cases, but these cases have thin walls and lack internal heat-insulating fillers. After a 600°C test, the internal temperature exceeds 300°C, far exceeding the limits of the memory chips. Furthermore, the seams of the cases only use ordinary silicone gaskets, which fail to seal properly after exposure to both flame and electrolyte corrosion.

[0098] Current industry technology remains at the stage of "thermal runaway early warning and suppression," and has not yet solved the problem of ensuring the "survivability and verifiability" of critical operational data under the dual coupling conditions of "extreme fire-corrosion." Therefore, there is an urgent need for a "black box" data recording device that is independent of the BMS, has multi-dimensional redundancy, and is of a high level, to meet the rigid requirements of accident tracing and cause analysis.

[0099] In this application, by setting up multiple independent storage units separate from the battery management unit, the working data generated by the operation of the energy storage system is stored synchronously, realizing dual data backup and effectively preventing data loss; it can also reduce the impact of thermal runaway of the battery management unit and battery pack on the data storage module, further improving the data preservation effect, meeting the rigid requirements of accident tracing and cause analysis, ensuring that the system can be correctly restored after power-on, and ensuring the normal operation of the energy storage system.

[0100] Based on this, by setting up a protective device with fireproof and waterproof functions covering the storage module 110, the storage module 110 can be effectively protected, reducing the impact on the storage module 110 caused by battery thermal runaway.

[0101] According to the energy storage system management system provided in the embodiments of this application, by setting a protective device with fireproof and waterproof functions covering the storage module 110, the storage module 110 can be effectively protected, reducing the impact of battery thermal runaway on the storage module 110, protecting the data stored in the storage module 110, further preventing data loss, meeting the rigid requirements of accident tracing and cause analysis, ensuring that the system can be correctly restored after power-on, and ensuring the normal operation of the energy storage system.

[0102] This application also provides an energy storage system.

[0103] The energy storage system includes: an energy storage device and a management system for the energy storage system as described in any of the above embodiments.

[0104] The energy storage device includes one or more battery packs, and the management system of the energy storage system is electrically connected to the energy storage device.

[0105] The management system of an energy storage system can be located inside the energy storage device, outside the energy storage device, or partially inside the energy storage device.

[0106] In some embodiments, the storage module is disposed inside the energy storage device, or the storage module is disposed outside the energy storage device.

[0107] For example, both the battery management unit and the storage module can be located inside the battery pack; or, the battery management unit can be located inside the battery pack and the storage module can be located outside the battery pack; or, the battery management unit can be located outside the battery pack and the storage module can be located outside the battery pack. The specific configuration can be determined according to actual needs, and this application does not impose any limitations on it.

[0108] According to the energy storage system management system provided in the embodiments of this application, multiple independent storage units independent of the battery management unit are set up to synchronously store the working data generated by the operation of the energy storage system, realize dual data backup, effectively prevent data loss; and reduce the impact of thermal runaway of the battery management unit and battery pack on the data storage module, further improve the data preservation effect, meet the rigid requirements of accident tracing and cause analysis, ensure that the system can be correctly restored after power-on, and ensure the normal operation of the energy storage system.

[0109] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0110] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0111] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0112] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0113] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A management system for an energy storage system, characterized in that, include: Battery Management Unit; The storage module includes at least two storage units, each of which is electrically connected to the battery management unit, and each of which is used to independently receive and store the working data sent by the battery management unit.

2. The management system for the energy storage system according to claim 1, characterized in that, Each storage unit performs independent writing and counts failures in the event of a writing failure. When the number of consecutive failures reaches a target number, a fault handling strategy corresponding to the storage unit that has reached the target number of failures is executed.

3. The management system for the energy storage system according to claim 2, characterized in that, If the number of consecutive failures of the primary storage unit in the at least two storage units reaches the target number, the secondary storage unit in the at least two storage units will be switched to the primary storage unit, and an alarm message will be output.

4. The management system for the energy storage system according to claim 3, characterized in that, The original storage unit retains the original stored data before the switch.

5. The management system for the energy storage system according to claim 3, characterized in that, After the switch from the primary storage unit to the secondary storage unit, the new primary storage unit is configured to prevent switchback.

6. The management system for the energy storage system according to claim 3, characterized in that, After the switch from the primary storage unit to the secondary storage unit, and if the consecutive failure count of the primary storage unit reaches the target number, the energy storage system stops operating and outputs an alarm message.

7. The management system for the energy storage system according to claim 2, characterized in that, An alarm message is output when the consecutive failure count from the storage cell in at least two storage cells reaches the target number.

8. The management system for the energy storage system according to any one of claims 1-7, characterized in that, The storage module is equipped with a protective device on its outer casing; the protective device includes: A housing, wherein the storage module is disposed within the housing; A heat insulation layer is attached to the inside of the housing.

9. The management system for the energy storage system according to claim 8, characterized in that, The protective device includes: A filler material is placed between the insulation layer and the storage module; the filler material is a refractory material.

10. An energy storage system, characterized in that, include: Energy storage devices; The management system of the energy storage system as described in any one of claims 1-9 is electrically connected to the energy storage device.

Images