A battery hierarchical control method and device for energy storage system

Abstract

The present invention relates to the technical field of energy storage systems, and discloses a battery hierarchical control method and device applied to energy storage systems, the method comprising: collecting system operation data corresponding to a battery system in an energy storage system; the battery system comprises multiple architecture hierarchies; each architecture hierarchy comprises multiple hierarchical devices corresponding to the architecture hierarchies; according to the system operation data, analyzing the equipment operation adjustment requirements corresponding to the battery system; the equipment operation adjustment requirements comprise equipment balancing requirements and / or equipment switching requirements; according to the equipment operation adjustment requirements, determining the target hierarchical level in the battery system and the hierarchical control parameters corresponding to the target hierarchical level; according to the hierarchical control parameters, controlling each hierarchical device in the target hierarchical level to perform operations corresponding to the hierarchical control parameters. It can be seen that the implementation of the present invention can improve the control accuracy of batteries in energy storage systems, and is conducive to improving the operational stability and operational safety of energy storage systems.

Description

Technical Field

[0001] The present invention relates to the technical field of energy storage systems, and in particular to a battery hierarchical control method and device applied to an energy storage system. Background Art

[0002] As research on clean energy continues to deepen, energy storage systems have become popular in society in recent years because they can convert light energy, chemical energy, and physical energy to achieve energy storage. By using energy storage systems, renewable energy can be efficiently utilized, thereby improving energy utilization.

[0003] In the actual operation of the energy storage system, the battery, as an important component of the energy storage system, can meet the user's electricity demand by utilizing the electric energy stored in the battery. However, it is found in practice that after the energy storage system has been put into use for a period of time, the battery will age to varying degrees. If a unified use management measure is adopted for all batteries, it is easy to cause safety risks due to differences in battery performance, which may affect the normal operation of the energy storage system. Therefore, it is particularly important to propose a technical solution that can improve the control accuracy of the battery in the energy storage system to improve the operating stability and safety of the energy storage system. Summary of the invention

[0004] The present invention provides a battery hierarchical control method and device applied to an energy storage system, which can improve the control accuracy of the batteries in the energy storage system and is beneficial to improving the operating stability and operating safety of the energy storage system.

[0005] In order to solve the above technical problems, the first aspect of the present invention discloses a battery hierarchical control method applied to an energy storage system, the method comprising:

[0006] Collecting system operation data corresponding to the battery system in the energy storage system; the battery system includes multiple architecture levels, each of which is one of a battery cluster level, a battery pack level, a battery module level and a battery cell level; each of the architecture levels includes multiple level devices corresponding to the architecture level; the system operation data includes device operation data corresponding to each of the level devices;

[0007] Analyzing the equipment operation adjustment requirements corresponding to the battery system according to the system operation data; the equipment operation adjustment requirements include equipment balancing requirements and / or equipment switching requirements;

[0008] Determining a target level in the battery system and a level control parameter corresponding to the target level according to the equipment operation adjustment requirement;

[0009] According to the hierarchy control parameter, each of the hierarchy devices in the target hierarchy is controlled to perform an operation corresponding to the hierarchy control parameter.

[0010] As an optional implementation, in the first aspect of the present invention, analyzing the equipment operation adjustment requirements corresponding to the battery system according to the system operation data includes:

[0011] Analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data; the architecture level to be detected includes at least one of the architecture levels; the hierarchical operation information includes equipment usage and / or equipment operation abnormality;

[0012] Determining whether the battery system meets a preset system operating condition according to the hierarchical operating condition information;

[0013] When it is determined that the battery system does not meet the system operating conditions, based on the system operating conditions, abnormal information that does not meet the system operating conditions is determined from the hierarchical operating status information, and based on the abnormal information and the system operating conditions, the equipment operation adjustment requirements corresponding to the battery system are determined.

[0014] As an optional implementation, in the first aspect of the present invention, the architecture level to be detected includes the battery pack level, and the level device corresponding to the battery pack level includes multiple battery packs;

[0015] Wherein, analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data includes:

[0016] Determine, according to the system operation data, the battery parameters of each battery pack included in the battery pack level and the life parameters of each battery pack; the battery parameters include at least one of battery voltage, battery current, battery temperature, battery internal resistance and battery capacity; the battery life parameters include at least one of cycle life, calendar life and actual battery use time;

[0017] According to each of the battery parameters and each of the life parameters, evaluating usage difference information between the plurality of the battery packs in the battery pack level; the usage difference information comprising a battery parameter difference value and a life parameter difference value;

[0018] All the battery parameters, all the life parameters and the usage difference information are determined as the device usage corresponding to the battery pack level; wherein the level operation status information includes the device usage.

[0019] As an optional implementation, in the first aspect of the present invention, when the hierarchical operation status information includes the device usage status, judging whether the battery system meets the preset system operation condition according to the hierarchical operation status information includes:

[0020] Analyzing the difference safety factor corresponding to the battery pack level according to the usage difference in the device usage;

[0021] Determining whether the difference safety factor is greater than or equal to a preset safety factor;

[0022] When it is determined that the difference safety factor is greater than or equal to the preset safety factor, determining that the battery system meets a preset system operating condition;

[0023] When it is determined that the difference safety factor is less than the preset safety factor, determining that the battery system does not meet the preset system operating conditions;

[0024] And, when the difference safety factor is less than the preset safety factor, the equipment operation adjustment requirement corresponding to the battery system includes the equipment balancing requirement.

[0025] As an optional implementation, in the first aspect of the present invention, the battery system further includes the battery cluster level, the level equipment corresponding to the battery cluster level includes a plurality of battery clusters, and each of the battery clusters includes a plurality of the battery packs;

[0026] Wherein, analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data includes:

[0027] Obtaining the operating standard parameters corresponding to each of the architecture levels to be detected;

[0028] For each of the architecture levels to be detected, compare the device operation data corresponding to each of the level devices in the architecture level to be detected with the operation standard parameters corresponding to the architecture level to be detected, and obtain the operation parameter comparison result corresponding to the architecture level to be detected;

[0029] For each of the architecture levels to be detected, determining a device aging coefficient corresponding to each of the level devices in the architecture level to be detected according to device operation data corresponding to each of the level devices in the architecture level to be detected;

[0030] For each of the architectural layers to be detected, the operation abnormality coefficient corresponding to each of the layer devices in the architectural layer to be detected is determined according to the operation parameter comparison result corresponding to the architectural layer to be detected and the equipment aging coefficient corresponding to each of the layer devices, and the operation abnormality coefficient corresponding to all of the layer devices in the architectural layer to be detected is determined as the equipment operation abnormality status corresponding to the architectural layer to be detected; wherein, the layer operation status information includes the equipment operation abnormality status.

[0031] As an optional implementation, in the first aspect of the present invention, when the hierarchical operation information includes the abnormal operation of the device, judging whether the battery system meets the preset system operation condition according to the hierarchical operation information includes:

[0032] When the operation abnormality coefficient corresponding to any of the hierarchical devices is greater than or equal to the preset abnormality coefficient, the hierarchical device is determined as an abnormal device;

[0033] For each of the architecture levels to be detected, the number of abnormal devices corresponding to the architecture level to be detected is counted, and the operation influence coefficient of all abnormal devices corresponding to the architecture level to be detected on the architecture level to be detected is analyzed;

[0034] For each of the architecture levels to be detected, determine whether the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and whether the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient;

[0035] For each of the architecture levels to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient, the architecture level to be detected is determined as a normal operating level;

[0036] For each of the architecture levels to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is greater than the preset number of devices or the operation impact coefficient corresponding to the architecture level to be detected is greater than the preset impact coefficient, the architecture level to be detected is determined as an abnormal operation level;

[0037] When the battery system does not have the abnormal operation level, determining that the battery system meets a preset system operation condition;

[0038] When the battery system has at least one abnormal operation level, determining that the battery system does not meet a preset system operation condition;

[0039] Furthermore, when the battery system has at least one abnormal operation level, the equipment operation adjustment requirement corresponding to the battery system includes the equipment switching requirement.

[0040] As an optional implementation, in the first aspect of the present invention, determining the target level in the battery system and the level control parameter corresponding to the target level according to the device operation adjustment requirement includes:

[0041] When the equipment operation adjustment requirement includes the equipment balancing requirement, the battery pack level is determined as the target level in the battery system, and the level control parameters corresponding to the battery pack level are determined according to the equipment balancing requirement; the level control parameters include the balancing control parameters corresponding to the battery pack level; the balancing control parameters include the balancing control mode and the balancing adjustment parameters corresponding to the balancing control mode;

[0042] When the equipment operation adjustment requirement includes the equipment switching requirement, the abnormal operation level corresponding to the equipment switching requirement is determined as the target level in the battery system, and the level control parameters corresponding to the target level are determined according to the equipment switching requirement; the level control parameters include the switching control parameters corresponding to each of the level equipment, and the switching control parameters include at least one of the commissioning control parameters, the cutting off control parameters and the re-inspection control parameters.

[0043] A second aspect of the present invention discloses a battery hierarchical control device for an energy storage system, the device comprising:

[0044] A collection module is used to collect system operation data corresponding to a battery system in an energy storage system; the battery system includes multiple architecture levels, each of which is one of a battery cluster level, a battery pack level, a battery module level, and a battery cell level; each of the architecture levels includes multiple level devices corresponding to the architecture level; the system operation data includes device operation data corresponding to each of the level devices;

[0045] An analysis module, used for analyzing the equipment operation adjustment requirements corresponding to the battery system according to the system operation data; the equipment operation adjustment requirements include equipment balancing requirements and / or equipment switching requirements;

[0046] A determination module, configured to determine a target level in the battery system and a level control parameter corresponding to the target level according to the equipment operation adjustment requirement;

[0047] A control module is used to control each of the hierarchical devices in the target hierarchical level to perform an operation corresponding to the hierarchical control parameter according to the hierarchical control parameter.

[0048] As an optional implementation, in the second aspect of the present invention, the specific manner in which the analysis module analyzes the equipment operation adjustment requirements corresponding to the battery system according to the system operation data includes:

[0049] Analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data; the architecture level to be detected includes at least one of the architecture levels; the hierarchical operation information includes equipment usage and / or equipment operation abnormality;

[0050] According to the hierarchical operation information, determining whether the battery system meets a preset system operation condition;

[0051] When it is determined that the battery system does not meet the system operating conditions, based on the system operating conditions, abnormal information that does not meet the system operating conditions is determined from the hierarchical operating status information, and based on the abnormal information and the system operating conditions, the equipment operation adjustment requirements corresponding to the battery system are determined.

[0052] As an optional implementation, in the second aspect of the present invention, the architecture level to be detected includes the battery pack level, and the level device corresponding to the battery pack level includes multiple battery packs;

[0053] The specific manner in which the analysis module analyzes the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data includes:

[0054] Determine, according to the system operation data, the battery parameters of each battery pack included in the battery pack level and the life parameters of each battery pack; the battery parameters include at least one of battery voltage, battery current, battery temperature, battery internal resistance and battery capacity; the battery life parameters include at least one of cycle life, calendar life and actual battery use time;

[0055] According to each of the battery parameters and each of the life parameters, evaluating usage difference information between the plurality of the battery packs in the battery pack level; the usage difference information comprising a battery parameter difference value and a life parameter difference value;

[0056] All the battery parameters, all the life parameters and the usage difference information are determined as the device usage corresponding to the battery pack level; wherein the level operation status information includes the device usage.

[0057] As an optional implementation, in the second aspect of the present invention, when the hierarchical operation information includes the device usage, the specific manner in which the analysis module determines whether the battery system meets the preset system operation conditions according to the hierarchical operation information includes:

[0058] Analyzing the difference safety factor corresponding to the battery pack level according to the usage difference in the device usage;

[0059] Determining whether the difference safety factor is greater than or equal to a preset safety factor;

[0060] When it is determined that the difference safety factor is greater than or equal to the preset safety factor, determining that the battery system meets a preset system operating condition;

[0061] When it is determined that the difference safety factor is less than the preset safety factor, determining that the battery system does not meet the preset system operating conditions;

[0062] And, when the difference safety factor is less than the preset safety factor, the equipment operation adjustment requirement corresponding to the battery system includes the equipment balancing requirement.

[0063] As an optional implementation, in the second aspect of the present invention, the battery system further includes the battery cluster level, the level device corresponding to the battery cluster level includes a plurality of battery clusters, and each of the battery clusters includes a plurality of the battery packs;

[0064] The specific manner in which the analysis module analyzes the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data includes:

[0065] Obtaining the operating standard parameters corresponding to each of the architecture levels to be detected;

[0066] For each of the architecture levels to be detected, compare the device operation data corresponding to each of the level devices in the architecture level to be detected with the operation standard parameters corresponding to the architecture level to be detected, and obtain the operation parameter comparison result corresponding to the architecture level to be detected;

[0067] For each of the architecture levels to be detected, determining a device aging coefficient corresponding to each of the level devices in the architecture level to be detected according to device operation data corresponding to each of the level devices in the architecture level to be detected;

[0068] For each of the architectural layers to be detected, the operation abnormality coefficient corresponding to each of the layer devices in the architectural layer to be detected is determined according to the operation parameter comparison result corresponding to the architectural layer to be detected and the equipment aging coefficient corresponding to each of the layer devices, and the operation abnormality coefficient corresponding to all of the layer devices in the architectural layer to be detected is determined as the equipment operation abnormality status corresponding to the architectural layer to be detected; wherein, the layer operation status information includes the equipment operation abnormality status.

[0069] As an optional implementation, in the second aspect of the present invention, when the hierarchical operation information includes the abnormal operation of the device, the specific manner in which the analysis module determines whether the battery system meets the preset system operation conditions according to the hierarchical operation information includes:

[0070] When the operation abnormality coefficient corresponding to any of the hierarchical devices is greater than or equal to the preset abnormality coefficient, the hierarchical device is determined as an abnormal device;

[0071] For each of the architecture levels to be detected, the number of abnormal devices corresponding to the architecture level to be detected is counted, and the operation influence coefficient of all abnormal devices corresponding to the architecture level to be detected on the architecture level to be detected is analyzed;

[0072] For each of the architecture levels to be detected, determine whether the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and whether the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient;

[0073] For each of the architecture levels to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient, the architecture level to be detected is determined as a normal operating level;

[0074] For each of the architecture levels to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is greater than the preset number of devices or the operation impact coefficient corresponding to the architecture level to be detected is greater than the preset impact coefficient, the architecture level to be detected is determined as an abnormal operation level;

[0075] When the battery system does not have the abnormal operation level, determining that the battery system meets a preset system operation condition;

[0076] When the battery system has at least one abnormal operation level, determining that the battery system does not meet a preset system operation condition;

[0077] Furthermore, when the battery system has at least one abnormal operation level, the equipment operation adjustment requirement corresponding to the battery system includes the equipment switching requirement.

[0078] As an optional implementation, in the second aspect of the present invention, the specific manner in which the determination module determines the target level in the battery system and the level control parameter corresponding to the target level according to the device operation adjustment requirement includes:

[0079] When the equipment operation adjustment requirement includes the equipment balancing requirement, the battery pack level is determined as the target level in the battery system, and the level control parameters corresponding to the battery pack level are determined according to the equipment balancing requirement; the level control parameters include the balancing control parameters corresponding to the battery pack level; the balancing control parameters include the balancing control mode and the balancing adjustment parameters corresponding to the balancing control mode;

[0080] When the equipment operation adjustment requirement includes the equipment switching requirement, the abnormal operation level corresponding to the equipment switching requirement is determined as the target level in the battery system, and the level control parameters corresponding to the target level are determined according to the equipment switching requirement; the level control parameters include the switching control parameters corresponding to each of the level equipment, and the switching control parameters include at least one of the commissioning control parameters, the cutting off control parameters and the re-inspection control parameters.

[0081] The third aspect of the present invention discloses another battery hierarchical control device for an energy storage system, the device comprising:

[0082] A memory storing executable program code;

[0083] a processor coupled to the memory;

[0084] The processor calls the executable program code stored in the memory to execute the battery hierarchical control method applied to the energy storage system disclosed in the first aspect of the present invention.

[0085] The fourth aspect of the present invention discloses a computer storage medium, wherein the computer storage medium stores computer instructions, and when the computer instructions are called, they are used to execute the battery hierarchical control method for energy storage systems disclosed in the first aspect of the present invention.

[0086] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0087] In an embodiment of the present invention, system operation data corresponding to a battery system in an energy storage system is collected; the battery system includes multiple architecture levels, each of which is one of a battery cluster level, a battery pack level, a battery module level and a battery cell level; each architecture level includes multiple level devices corresponding to the architecture level; the system operation data includes device operation data corresponding to each level device; based on the system operation data, the device operation adjustment requirements corresponding to the battery system are analyzed; the device operation adjustment requirements include device balancing requirements and / or device switching requirements; based on the device operation adjustment requirements, the target level in the battery system and the level control parameters corresponding to the target level are determined; based on the level control parameters, each level device in the target level is controlled to perform operations corresponding to the level control parameters. It can be seen that the implementation of the present invention can first collect the system operation data corresponding to the battery system in the energy storage system, and then analyze the equipment balancing requirements and / or equipment switching requirements corresponding to the battery system according to the system operation data, and then determine the target level in the battery system and the hierarchical control parameters corresponding to the target level according to the equipment operation adjustment requirements, so as to control each hierarchical device in the target level to perform the operation corresponding to the hierarchical control parameters according to the hierarchical control parameters, so as to realize intelligent and hierarchical control of the battery system in the energy storage system, and can improve the accuracy of the hierarchical analysis of the operation of the battery system, thereby improving the analysis accuracy of the adjustment requirements of the hierarchical devices in the system, and then improve the accuracy of determining the control parameters of the hierarchical devices and the hierarchical devices that need to be adjusted, which is conducive to improving the control accuracy of the battery in the energy storage system, and then is conducive to improving the use safety of the hierarchical devices in the battery system and the stability of energy supply and storage, and then is conducive to improving the operation stability and operation safety of the energy storage system, and is conducive to improving the supply / energy storage stability of the energy storage system. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0089] Figure 1 It is a flowchart of a battery hierarchical control method applied to an energy storage system disclosed in an embodiment of the present invention;

[0090] Figure 2 It is a flow chart of another battery hierarchical control method applied to an energy storage system disclosed in an embodiment of the present invention;

[0091] Figure 3 It is a structural schematic diagram of a battery hierarchical control device applied to an energy storage system disclosed in an embodiment of the present invention;

[0092] Figure 4 It is a structural schematic diagram of another battery hierarchical control device applied to an energy storage system disclosed in an embodiment of the present invention. DETAILED DESCRIPTION

[0093] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0094] The terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, product or end including a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units inherent to these processes, methods, products or ends.

[0095] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0096] The present invention discloses a battery hierarchical control method and device applied to an energy storage system, which can first collect system operation data corresponding to the battery system in the energy storage system, and then analyze the equipment balancing requirements and / or equipment switching requirements corresponding to the battery system according to the system operation data, and then determine the target level in the battery system and the hierarchical control parameters corresponding to the target level according to the equipment operation adjustment requirements, so as to control each hierarchical device in the target level to perform the operation corresponding to the hierarchical control parameters according to the hierarchical control parameters, so as to realize intelligent and hierarchical control of the battery system in the energy storage system, and can improve the hierarchical analysis accuracy of the operation of the battery system, thereby improving the analysis accuracy of the adjustment requirements of the hierarchical devices in the system, and then improve the accuracy of determining the control parameters of the hierarchical devices that need to be adjusted, and then help to improve the control accuracy of the battery in the energy storage system, and then help to improve the use safety and energy supply and storage stability of the hierarchical devices in the battery system, and then help to improve the operation stability and operation safety of the energy storage system, and help to improve the supply / energy storage stability of the energy storage system. The following are detailed descriptions.

[0097] Embodiment 1

[0098] See also Figure 1 , Figure 1 : is a flowchart of a battery hierarchical control method for an energy storage system disclosed in an embodiment of the present invention. Figure 1 The battery hierarchical control method applied to the energy storage system described can be applied to a battery hierarchical control device, which may include one of a control terminal, a control device, a control system and a server, wherein the server may include a local server or a cloud server, which is not limited in the embodiment of the present invention. Figure 1 As shown, the battery hierarchical control method applied to the energy storage system may include the following operations:

[0099] 101. Collect system operation data corresponding to the battery system in the energy storage system.

[0100] In an embodiment of the present invention, the energy storage system may include a battery system, and may also include a communication system or other component systems for maintaining the normal operation of the energy storage system, which is not limited in the embodiment of the present invention; the battery system may include multiple architecture levels, each architecture level is one of a battery cluster level, a battery pack level, a battery module level and a battery cell level, which is not limited in the embodiment of the present invention; each architecture level may include multiple level devices corresponding to the architecture level; wherein, optionally, when the architecture level is a battery cluster level, the level device corresponding to the battery cluster level may include multiple battery clusters, and each battery cluster may include multiple battery packs; when the architecture level is a battery pack level, the level device corresponding to the battery pack level may include multiple battery packs, and each battery pack may include multiple battery modules or multiple battery cell monomers, and further optionally, each battery pack may also correspond to a BEMS (Battery Energy Management System, battery energy management system), which is not limited in the embodiment of the present invention; when the architecture level is a battery cell level, the level device corresponding to the battery cell level may include multiple battery cell monomers, which is not limited in the embodiment of the present invention.

[0101] In an embodiment of the present invention, the system operation data corresponding to the battery system may include the device operation data corresponding to each level of equipment; wherein, optionally, the device operation data corresponding to each level of equipment may include the operating temperature, operating time, charging and discharging data corresponding to the level of equipment and one or more combinations of the data change trends corresponding to each of the above data, which is not limited in the embodiment of the present invention.

[0102] 102. Analyze the equipment operation adjustment requirements corresponding to the battery system based on the system operation data.

[0103] In an embodiment of the present invention, the equipment operation adjustment requirement includes an equipment balancing requirement and / or an equipment switching requirement; wherein the equipment balancing requirement is used to indicate the need to perform a battery balancing operation on a level device corresponding to at least one architectural level in the battery system; the equipment switching requirement is used to indicate the need to perform a switching operation on at least one level device corresponding to at least one architectural level in the battery system, and the switching operation is used to control the use of a certain level device or the removal of a certain level device.

[0104] 103. According to the equipment operation adjustment requirements, determine the target level in the battery system and the level control parameters corresponding to the target level.

[0105] In an embodiment of the present invention, there may be at least one target level in the battery system, which is not limited by the embodiment of the present invention; wherein, optionally, the level control parameters may include at least one of balancing control parameters, switching control parameters and charging and discharging control parameters, which is not limited by the embodiment of the present invention.

[0106] 104. According to the hierarchical control parameter, control each hierarchical device in the target hierarchical level to perform an operation corresponding to the hierarchical control parameter.

[0107] In an embodiment of the present invention, optionally, when the hierarchical control parameters include balancing control parameters, the operations corresponding to the hierarchical control parameters include battery balancing operations; when the hierarchical control parameters include switching control parameters, the operations corresponding to the hierarchical control parameters include switching operations; when the hierarchical control parameters include charging and discharging control parameters, the operations corresponding to the hierarchical control parameters include charging and discharging control operations, which are not limited in the embodiment of the present invention.

[0108] It can be seen that the method described in the embodiment of the present invention can first collect the system operation data corresponding to the battery system in the energy storage system, and then analyze the equipment balancing requirements and / or equipment switching requirements corresponding to the battery system according to the system operation data, and then determine the target level in the battery system and the hierarchical control parameters corresponding to the target level according to the equipment operation adjustment requirements, so as to control each hierarchical device in the target level to perform the operation corresponding to the hierarchical control parameters according to the hierarchical control parameters, so as to realize intelligent and hierarchical control of the battery system in the energy storage system, and can improve the accuracy of the hierarchical analysis of the operation of the battery system, thereby improving the analysis accuracy of the adjustment requirements of the hierarchical devices in the system, and then improve the accuracy of determining the control parameters of the hierarchical devices and the hierarchical devices that need to be adjusted, which is conducive to improving the control accuracy of the battery in the energy storage system, and then is conducive to improving the use safety of the hierarchical devices in the battery system and the stability of energy supply and storage, and then is conducive to improving the operation stability and operation safety of the energy storage system, and is conducive to improving the supply / energy storage stability of the energy storage system.

[0109] In an optional embodiment, analyzing the equipment operation adjustment requirements corresponding to the battery system according to the system operation data may include the following operations:

[0110] Analyze the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data; the architecture level to be detected includes at least one architecture level; the hierarchical operation information includes equipment usage and / or equipment operation abnormality;

[0111] According to the hierarchical operation information, determine whether the battery system meets the pre-set system operation conditions;

[0112] When it is determined that the battery system does not meet the system operating conditions, based on the system operating conditions, abnormal information that does not meet the system operating conditions is determined from the hierarchical operating status information, and based on the abnormal information and the system operating conditions, the equipment operation adjustment requirements corresponding to the battery system are determined.

[0113] Optionally, the architecture level to be detected may include a battery cluster level and / or a battery pack level, which is not limited in the embodiment of the present invention.

[0114] Among them, the device usage corresponding to the architectural level to be detected can be used to indicate the continuous usage and / or lifespan and / or battery parameter conditions and / or the degree of difference in usage between the hierarchical devices corresponding to the architectural level to be detected within a preset time period, which is not limited in the embodiments of the present invention.

[0115] Among them, the abnormal operation status of the equipment corresponding to the architecture level to be detected can be used to indicate whether the level equipment corresponding to the architecture level to be detected can operate normally.

[0116] It can be seen that this optional embodiment can analyze the hierarchical operation status of the architecture level to be detected in the battery system according to the system operation data, and then determine whether the battery system meets the system operation conditions according to the hierarchical operation status information. If it is determined that the battery system does not meet the system operation conditions, then based on the system operation conditions, determine the abnormal information that does not meet the system operation conditions from the hierarchical operation status information, and determine the equipment operation adjustment requirements of the battery system according to the abnormal information and the system operation conditions. This can improve the accuracy of the analysis of the operation status of the architecture level to be detected, thereby improving the accuracy of the judgment of whether the battery system meets the system operation conditions, thereby improving the execution accuracy of the determination operation of the equipment operation adjustment requirements, which is beneficial to improving the accuracy of the determination of the equipment operation adjustment requirements.

[0117] In this optional embodiment, optionally, the architecture level to be detected may include a battery pack level, and the level device corresponding to the battery pack level may include multiple battery packs;

[0118] Among them, analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data may include the following operations:

[0119] Determine the battery parameters of each battery pack included in the battery pack level and the life parameters of each battery pack according to the system operation data; the battery parameters include at least one of battery voltage, battery current, battery temperature, battery internal resistance and battery capacity; the battery life parameters include at least one of cycle life, calendar life and actual battery use time;

[0120] Evaluate usage difference information between multiple battery packs in a battery pack level according to each battery parameter and each life parameter; the usage difference information includes a battery parameter difference value and a life parameter difference value;

[0121] All battery parameters, all life parameters and usage difference information are determined as the device usage corresponding to the battery pack level; wherein the level operation information includes the device usage.

[0122] Among them, the battery parameters of each battery pack may include multiple battery parameter values ​​corresponding to the battery pack collected within a preset time period and / or the battery parameter value of the battery pack collected at the current moment, which is not limited in the embodiment of the present invention.

[0123] Among them, optionally, the battery performance corresponding to each battery pack can be evaluated based on the battery parameters and life parameters; further optionally, the usage difference information between multiple battery packs in the battery pack level can be evaluated based on each battery parameter, each life parameter and each battery performance, which is not limited in the embodiments of the present invention.

[0124] The battery parameter difference value may include at least one of a battery charge / discharge voltage difference value, a battery charge / discharge current difference value, a battery internal resistance difference value, and a battery capacity difference value, which is not limited in the embodiment of the present invention.

[0125] Optionally, based on each battery parameter and each life parameter, the usage difference information between multiple battery packs in the battery pack level is evaluated, which can be specifically as follows: determining the battery cluster corresponding to each battery pack in the battery pack level; for each battery cluster, based on the battery parameters corresponding to all the battery packs included in the battery cluster and the life parameters corresponding to all the battery packs included in the battery cluster, determining the usage difference sub-information corresponding to the battery cluster; wherein the usage difference information corresponding to the battery pack level includes all usage difference sub-information; this is not limited to the embodiments of the present invention.

[0126] It can be seen that this optional embodiment can also determine the battery parameters of each battery pack included in the battery pack level and the life parameters of each battery pack according to the system operation data, and then evaluate the usage difference information between multiple battery packs in the battery pack level according to the battery parameters and life parameters, and then determine the battery parameters, life parameters and usage difference information as the equipment usage corresponding to the battery pack level, which can improve the accuracy of the analysis of the battery pack usage, thereby improving the accuracy of the analysis of the usage differences of battery packs in the same level, which in turn is conducive to improving the accuracy of determining the equipment usage corresponding to the battery pack level, and is conducive to improving the accuracy of the subsequent judgment of whether the battery system meets the system operation conditions.

[0127] In this optional embodiment, optionally, when the hierarchical operation status information includes the equipment usage status, judging whether the battery system meets the preset system operation condition according to the hierarchical operation status information may include the following operations:

[0128] Analyze the difference safety factors corresponding to the battery pack level according to the differences in usage of the equipment;

[0129] Determine whether the difference safety factor is greater than or equal to the preset safety factor;

[0130] When it is determined that the difference safety factor is greater than or equal to the preset safety factor, determining that the battery system meets the preset system operating conditions;

[0131] When it is determined that the difference safety factor is less than the preset safety factor, it is determined that the battery system does not meet the preset system operating conditions;

[0132] And, when the difference safety factor is less than the preset safety factor, the equipment operation adjustment requirements corresponding to the battery system include equipment balancing requirements.

[0133] Among them, the differential safety factor can be used to indicate the safety level of the battery pack level when all battery packs have the above-mentioned differences in usage conditions; the higher the numerical value corresponding to the differential safety factor, the lower the possibility of safety hazards in the battery pack level during use.

[0134] It can be seen that this optional embodiment can also analyze the differential safety factor corresponding to the battery pack level according to the usage differences in the equipment usage. When it is judged that the differential safety factor is greater than or equal to the preset safety factor, it is determined that the battery system meets the preset system operating conditions; when it is judged that the differential safety factor is less than the preset safety factor, it is determined that the battery system does not meet the preset system operating conditions. The accuracy of determining the differential safety factor can be improved, thereby improving the accuracy of analyzing the safety level of the battery pack level, and can also further improve the accuracy of judging whether the battery system meets the system operating conditions based on the differential safety factor, which is beneficial to further improve the accuracy of determining the equipment operation adjustment requirements.

[0135] In this optional embodiment, optionally, the battery system further includes a battery cluster level, and the level device corresponding to the battery cluster level may include a plurality of battery clusters, and each battery cluster may include a plurality of battery packs;

[0136] Among them, analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data may include the following operations:

[0137] Obtain the operating standard parameters corresponding to each architecture level to be tested;

[0138] For each architecture level to be detected, compare the device operation data corresponding to each level device in the architecture level to be detected with the operation standard parameters corresponding to the architecture level to be detected, and obtain the operation parameter comparison result corresponding to the architecture level to be detected;

[0139] For each architecture level to be detected, determining the device aging coefficient corresponding to each level device in the architecture level to be detected according to the device operation data corresponding to each level device in the architecture level to be detected;

[0140] For each architecture level to be detected, the operation abnormality coefficient corresponding to each level device in the architecture level to be detected is determined according to the operation parameter comparison result corresponding to the architecture level to be detected and the equipment aging coefficient corresponding to each level device, and the operation abnormality coefficient corresponding to all level devices in the architecture level to be detected is determined as the equipment operation abnormality status corresponding to the architecture level to be detected; wherein the level operation status information includes the equipment operation abnormality status.

[0141] Among them, the operating standard parameters corresponding to each architecture level to be detected may include the equipment operating standard parameters corresponding to each level of equipment included in the architecture level to be detected; the parameter types included in the operating standard parameters corresponding to each architecture level to be detected may correspond one-to-one with the parameter types included in the equipment operating data corresponding to each architecture level to be detected.

[0142] Among them, the higher the value corresponding to the equipment aging coefficient corresponding to each level of equipment, the higher the aging degree of the equipment at this level; among them, the higher the value corresponding to the operation abnormality coefficient corresponding to each level of equipment, the higher the possibility of failure of the equipment at this level during operation.

[0143] Optionally, the method may further include the following operations: obtaining operating environment parameters corresponding to each level device in each architecture level to be detected, where the operating environment parameters may include a combination of one or more of operating environment temperature, operating environment humidity, operating environment air pressure, operating environment space size, and operating environment heat dissipation parameters; for each architecture level to be detected, determining the environmental impact coefficient corresponding to each level device according to the operating environment parameters corresponding to each level device in the architecture level to be detected; wherein, the higher the numerical value corresponding to the environmental impact coefficient, the higher the possibility that the environment in which the level device is located causes the level device to fail; and, for each architecture level to be detected, determining the operating abnormality coefficient corresponding to each level device in the architecture level to be detected according to the operating parameter comparison result corresponding to the architecture level to be detected and the device aging coefficient corresponding to each level device. Specifically, the operating abnormality coefficient corresponding to each level device in the architecture level to be detected is determined according to the operating parameter comparison result corresponding to the architecture level to be detected, the device aging coefficient corresponding to each level device, and the environmental impact coefficient corresponding to each level device, which is not limited in the embodiments of the present invention.

[0144] It can be seen that this optional embodiment can also compare the equipment operation data corresponding to each level device in the architecture level to be detected with the acquired operation standard parameters corresponding to the architecture level to be detected for each architecture level to be detected, obtain the operation parameter comparison result corresponding to the architecture level to be detected, and determine the equipment aging coefficient corresponding to each level device in the architecture level to be detected according to the equipment operation data corresponding to each level device in the architecture level to be detected, and then determine the operation abnormality coefficient corresponding to each level device in the architecture level to be detected according to the operation parameter comparison result and the equipment aging coefficient, and determine the operation abnormality coefficient corresponding to all level devices in the architecture level to be detected as the equipment operation abnormality corresponding to the architecture level to be detected, which can improve the comparison accuracy of the operation status of each level device and the analysis accuracy of the equipment aging status of each level device, so as to improve the determination accuracy of the operation abnormality coefficient of each level device, so as to improve the analysis accuracy of whether each level device is operating normally, and then help to improve the determination accuracy of the equipment usage corresponding to the architecture level to be detected, and help to improve the accuracy of the subsequent judgment of whether the battery system meets the system operating conditions.

[0145] In this optional embodiment, optionally, when the hierarchical operation status information includes abnormal operation of the equipment, judging whether the battery system meets the preset system operation conditions according to the hierarchical operation status information may include the following operations:

[0146] When the operation abnormality coefficient corresponding to any level of equipment is greater than or equal to the preset abnormality coefficient, the level of equipment is determined as an abnormal equipment;

[0147] For each architecture level to be detected, count the number of abnormal devices corresponding to the architecture level to be detected, and analyze the impact coefficient of all abnormal devices corresponding to the architecture level to be detected on the operation of the architecture level to be detected;

[0148] For each architecture level to be detected, determine whether the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and whether the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient;

[0149] For each architecture level to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient, the architecture level to be detected is determined as a normal operating level;

[0150] For each architecture level to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is greater than the preset number of devices or the operation impact coefficient corresponding to the architecture level to be detected is greater than the preset impact coefficient, the architecture level to be detected is determined as an abnormal operation level;

[0151] When the battery system does not have an abnormal operation level, determining that the battery system meets a preset system operation condition;

[0152] When the battery system has at least one abnormal operation level, determining that the battery system does not meet a preset system operation condition;

[0153] Furthermore, when the battery system has at least one abnormal operation level, the equipment operation adjustment requirements corresponding to the battery system include equipment switching requirements.

[0154] Among them, the larger the value corresponding to the operation impact coefficient of all abnormal devices corresponding to each architecture level to be detected on the architecture level to be detected, the greater the possibility that the abnormal devices of the architecture level to be detected will cause the architecture level to be detected to fail to operate normally.

[0155] It can be seen that this optional embodiment can also determine any hierarchical device whose operation abnormality coefficient is greater than or equal to the preset abnormality coefficient as an abnormal device, and count the number of abnormal devices corresponding to each architectural level to be detected, and analyze the operation impact coefficient of all abnormal devices corresponding to each architectural level to be detected on the architectural level to be detected, and then determine whether the number of abnormal devices corresponding to each architectural level to be detected is less than or equal to the preset number of devices and whether the operation impact coefficient corresponding to the architectural level to be detected is less than or equal to the preset impact coefficient. If it is determined that the number of abnormal devices corresponding to the architectural level to be detected is less than or equal to the preset number of devices and the operation impact coefficient corresponding to the architectural level to be detected is less than or equal to the preset impact coefficient, then The architecture level to be detected is determined as the normal operating level, otherwise the architecture level to be detected is determined as the abnormal operating level. When the battery system does not have an abnormal operating level, it is determined that the battery system meets the preset system operating conditions. When the battery system has at least one abnormal operating level, it is determined that the battery system does not meet the preset system operating conditions. This can improve the accuracy of determining abnormal equipment and the accuracy of determining the operation impact coefficient, thereby improving the accuracy and flexibility of analyzing abnormal situations in the architecture level, and further improve the accuracy and flexibility of judging whether the battery system meets the system operating conditions based on the abnormal situation, which is conducive to further improving the accuracy of determining the equipment operation adjustment requirements.

[0156] Embodiment 2

[0157] See also Figure 2 , Figure 2: is a flowchart of a battery hierarchical control method for an energy storage system disclosed in an embodiment of the present invention. Figure 2 The battery hierarchical control method applied to the energy storage system described can be applied to a battery hierarchical control device, which may include one of a control terminal, a control device, a control system and a server, wherein the server may include a local server or a cloud server, which is not limited in the embodiment of the present invention. Figure 2 As shown, the battery hierarchical control method applied to the energy storage system may include the following operations:

[0158] 201. Collect system operation data corresponding to the battery system in the energy storage system.

[0159] In an embodiment of the present invention, the battery system includes multiple architecture levels, each architecture level is one of a battery cluster level, a battery pack level, a battery module level and a battery cell level; each architecture level includes multiple level devices corresponding to the architecture level; and the system operation data includes device operation data corresponding to each level device.

[0160] 202. Analyze the equipment operation adjustment requirements corresponding to the battery system based on the system operation data.

[0161] In the embodiment of the present invention, the equipment operation adjustment requirement includes an equipment balancing requirement and / or an equipment switching requirement.

[0162] In the embodiment of the present invention, when the equipment operation adjustment demand includes equipment balancing demand, the operations of step 203-step 204 are performed, and when the equipment operation adjustment demand includes equipment switching demand, the operations of step 205-step 206 are performed.

[0163] It should be noted that there is no sequence relationship between step 203-step 204 and any one of step 205-step 206, that is, step 203-step 204 can occur before or after any one of step 205-step 206 or occur simultaneously with any one of step 205-step 206, and the embodiment of the present invention is not limited thereto.

[0164] 203. When the equipment operation adjustment requirements include equipment balancing requirements, the battery pack level is determined as the target level in the battery system.

[0165] 204. Determine the level control parameters corresponding to the battery pack level according to the equipment balancing requirements.

[0166] In an embodiment of the present invention, the hierarchical control parameters include balancing control parameters corresponding to the battery pack hierarchy; wherein the balancing control parameters include a balancing control method and a balancing adjustment parameter corresponding to the balancing control method; optionally, the balancing control method may include an active balancing method or a passive balancing method, which is not limited in the embodiment of the present invention; optionally, the balancing adjustment parameter corresponding to the balancing control method may include a combination of one or more balancing devices required to be deployed in the balancing control method, a device connection method between multiple balancing devices, and a balancing duration, wherein the balancing device may include a hierarchical device and / or an auxiliary device corresponding to the hierarchical device. Exemplarily, the auxiliary device may be a transformer, which is not limited in the embodiment of the present invention.

[0167] 205. When the equipment operation adjustment requirement includes an equipment switching requirement, the abnormal operation level corresponding to the equipment switching requirement is determined as the target level in the battery system.

[0168] In the embodiment of the present invention, the target level may include a battery cluster level and / or a battery pack level, which is not limited in the embodiment of the present invention.

[0169] 206. According to the equipment switching requirements, determine the level control parameters corresponding to the target level.

[0170] In an embodiment of the present invention, the hierarchical control parameters include switching control parameters corresponding to each hierarchical device, and the switching control parameters include at least one of a commissioning control parameter, a removal control parameter and a re-inspection control parameter; wherein, optionally, the commissioning control parameter may include a combination of one or more of the commissioning time, commissioning duration, commissioning mode, and connection mode between multiple hierarchical devices in the target hierarchical level after the hierarchical device is put into use, which is not limited by the embodiment of the present invention; optionally, the removal control parameter may include a combination of one or more of the removal time, removal mode, and connection mode between multiple hierarchical devices in the target hierarchical level after the hierarchical device is removed from use, which is not limited by the embodiment of the present invention; optionally, the re-inspection control parameter is used to detect whether the hierarchical device that has been removed from use can be put back into use, and may include a combination of one or more of the re-inspection time, re-inspection time interval, and re-inspection mode of the hierarchical device after it is removed from use, which is not limited by the embodiment of the present invention.

[0171] 207. According to the hierarchical control parameter, control each hierarchical device in the target hierarchical level to perform an operation corresponding to the hierarchical control parameter.

[0172] In the embodiment of the present invention, for other detailed descriptions of step 201-step 202 and step 207, please refer to the detailed description of step 101-step 102 and step 104 in the first embodiment, and the embodiment of the present invention will not be repeated.

[0173] It can be seen that the method described in the embodiment of the present invention can first collect the system operation data corresponding to the battery system in the energy storage system, and then analyze the equipment balancing requirements and / or equipment switching requirements corresponding to the battery system according to the system operation data, and then determine the target level in the battery system and the hierarchical control parameters corresponding to the target level according to the equipment operation adjustment requirements, so as to control each hierarchical device in the target level to perform the operation corresponding to the hierarchical control parameters according to the hierarchical control parameters, so as to realize intelligent and hierarchical control of the battery system in the energy storage system, and can improve the accuracy of the hierarchical analysis of the operation of the battery system, thereby improving the analysis accuracy of the adjustment requirements of the hierarchical devices in the system, and then improve the accuracy of determining the control parameters of the hierarchical devices and the hierarchical devices that need to be adjusted, which is conducive to improving the control accuracy of the battery in the energy storage system, and then is conducive to improving the use safety of the hierarchical devices in the battery system and the stability of energy supply and storage, and then is conducive to improving the operation stability and operation safety of the energy storage system, and is conducive to improving the supply / energy storage stability of the energy storage system. In addition, when the equipment operation adjustment requirements include equipment balancing requirements, the battery pack level can be determined as the target level, and the corresponding balancing control parameters can be determined according to the equipment balancing requirements; when the equipment operation adjustment requirements include equipment switching requirements, the abnormal operation level can be determined as the target level, and the corresponding switching control parameters can be determined according to the equipment switching requirements. This can improve the flexibility and accuracy of determining the level control parameters, which is beneficial to improving the accuracy of determining the control parameters of the level that needs to be adjusted and the level equipment, and further helps to improve the adjustment accuracy of the level equipment in the battery system, and further helps to improve the control accuracy of the batteries in the energy storage system.

[0174] In an optional embodiment, determining the level control parameters corresponding to the battery pack level according to the device balancing requirement may include the following operations:

[0175] According to the device balancing requirement, determining at least one target balancing device that needs to be balanced in the battery pack level;

[0176] Obtain device specification parameters corresponding to each target balancing device;

[0177] Determine the balancing control method and the balancing adjustment parameters corresponding to the balancing control method according to the balancing requirements and equipment specification parameters of the equipment;

[0178] According to the equipment balancing requirements and balancing adjustment parameters, the charge and discharge control parameters corresponding to each level of equipment in the battery pack level are determined; wherein the charge and discharge control parameters may include a combination of one or more of the charge / discharge frequency, charge / discharge duration, charge / discharge current, and charge / discharge voltage.

[0179] It can be seen that this optional embodiment can determine the target balancing device according to the device balancing requirements, and obtain the device specification parameters corresponding to each target balancing device, so as to determine the balancing control parameters and the corresponding balancing adjustment parameters according to the device balancing requirements and the device specification parameters, and then determine the charging and discharging control parameters corresponding to each level device according to the above-mentioned balancing control parameters, which can further improve the accuracy of determining the balancing control parameters, thereby improving the accuracy of determining the charging and discharging control parameters of the hierarchical devices, and further helping to improve the control accuracy and safety of the battery.

[0180] In another optional embodiment, determining the level control parameter corresponding to the target level according to the equipment switching requirement may include the following operations:

[0181] Obtain the energy supply and storage requirements corresponding to the battery system; the energy supply and storage requirements include energy supply requirements and energy storage requirements;

[0182] According to the energy storage demand, the equipment switching demand and the acquired set of spare devices corresponding to the target level, at least one target switching device in the target level is determined; the set of spare devices includes at least one spare device, and the device type of each spare device matches the device type of the level device corresponding to the target level; all target switching devices may include at least one target switching device that needs to be put into use and / or at least one target removal device that needs to be removed for use; wherein each target switching device may be a level device or a spare device corresponding to the target level;

[0183] Obtain the equipment specification parameters corresponding to each target switching equipment corresponding to the target level;

[0184] According to the equipment switching demand, the above-mentioned energy supply and storage demand, and the equipment specification parameters corresponding to each target switching equipment, the switching control parameters corresponding to each target switching equipment are determined; when the target switching equipment is a target input equipment, the switching control parameters corresponding to the target switching equipment include input control parameters; when the target switching equipment is a target removal equipment, the switching control parameters corresponding to the target switching equipment include removal control parameters.

[0185] Further optionally, the method may also include the following operations:

[0186] When all target switching devices include at least one target removal device, determining the level energy supply and storage demand corresponding to the target level from the energy supply and storage demand;

[0187] Determine whether the energy supply and storage capacity corresponding to the remaining level equipment in the target level except the target removal equipment meets the level energy supply and storage demand corresponding to the target level;

[0188] When it is determined that the energy supply and storage capacity corresponding to the remaining level devices in the target level except the target removal device does not meet the level energy supply and storage demand corresponding to the target level, a repair reminder information corresponding to each target removal device and a re-inspection control parameter corresponding to each target removal device are generated according to the removal control parameters corresponding to each target removal device and the level energy supply and storage demand; the repair reminder information is used to remind the corresponding management personnel of the battery system to repair or replace the target removal device;

[0189] The switching control parameters corresponding to each target removal device also include recheck control parameters.

[0190] It can be seen that this optional embodiment can obtain the energy supply and storage demand corresponding to the battery system, and determine at least one target switching device in the target level according to the energy supply and storage demand, the equipment switching demand and the acquired set of backup equipment corresponding to the target level, and then obtain the equipment specification parameters corresponding to each target switching device corresponding to the target level, and then determine the switching control parameters corresponding to each target switching device according to the equipment switching demand, the above-mentioned energy supply and storage demand, and the equipment specification parameters corresponding to each target switching device, which can improve the accuracy of determining the switching control parameters, thereby facilitating accurate and efficient control of the input / output of battery clusters / battery packs, and further facilitating further improving the control accuracy of hierarchical equipment, and further facilitating avoiding the use of hierarchical equipment with safety risks, and further facilitating improving the operating safety of the battery system.

[0191] Embodiment 3

[0192] See also Figure 3 , Figure 3 1 is a schematic diagram of a battery hierarchical control device for an energy storage system disclosed in an embodiment of the present invention. Figure 3 The battery hierarchical control device applied to the energy storage system described may include one of a control terminal, a control device, a control system and a server, wherein the server may include a local server or a cloud server, which is not limited in the embodiment of the present invention. Figure 3 As shown, the battery hierarchical control device applied to the energy storage system may include:

[0193] The acquisition module 301 is used to acquire system operation data corresponding to the battery system in the energy storage system; the battery system includes multiple architecture levels, each architecture level is one of a battery cluster level, a battery pack level, a battery module level and a battery cell level; each architecture level includes multiple level devices corresponding to the architecture level; the system operation data includes device operation data corresponding to each level device;

[0194] The analysis module 302 is used to analyze the equipment operation adjustment requirements corresponding to the battery system according to the system operation data; the equipment operation adjustment requirements include equipment balancing requirements and / or equipment switching requirements;

[0195] A determination module 303 is used to determine a target level in the battery system and a level control parameter corresponding to the target level according to the equipment operation adjustment requirements;

[0196] The control module 304 is used to control each hierarchical device in the target hierarchical level to perform an operation corresponding to the hierarchical control parameter according to the hierarchical control parameter.

[0197] It can be seen that the device described in the embodiment of the present invention can first collect the system operation data corresponding to the battery system in the energy storage system, and then analyze the equipment balancing requirements and / or equipment switching requirements corresponding to the battery system according to the system operation data, and then determine the target level in the battery system and the hierarchical control parameters corresponding to the target level according to the equipment operation adjustment requirements, so as to control each hierarchical device in the target level to perform the operation corresponding to the hierarchical control parameters according to the hierarchical control parameters, so as to realize intelligent and hierarchical control of the battery system in the energy storage system, and can improve the accuracy of the hierarchical analysis of the operation of the battery system, thereby improving the analysis accuracy of the adjustment requirements of the hierarchical devices in the system, and then improve the accuracy of determining the control parameters of the hierarchical devices and the hierarchical devices that need to be adjusted, which is conducive to improving the control accuracy of the battery in the energy storage system, and then is conducive to improving the use safety of the hierarchical devices in the battery system and the stability of energy supply and storage, and then is conducive to improving the operation stability and operation safety of the energy storage system, and is conducive to improving the supply / energy storage stability of the energy storage system.

[0198] In an optional embodiment, the specific manner in which the analysis module 302 analyzes the equipment operation adjustment requirements corresponding to the battery system according to the system operation data may include:

[0199] Analyze the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data; the architecture level to be detected includes at least one architecture level; the hierarchical operation information includes equipment usage and / or equipment operation abnormality;

[0200] According to the hierarchical operation information, determine whether the battery system meets the pre-set system operation conditions;

[0201] When it is determined that the battery system does not meet the system operating conditions, based on the system operating conditions, abnormal information that does not meet the system operating conditions is determined from the hierarchical operating status information, and based on the abnormal information and the system operating conditions, the equipment operation adjustment requirements corresponding to the battery system are determined.

[0202] It can be seen that the device described in the implementation of this optional embodiment can analyze the hierarchical operation status of the architecture level to be detected in the battery system according to the system operation data, and then determine whether the battery system meets the system operation conditions based on the hierarchical operation status information. If it is determined that the battery system does not meet the system operation conditions, then based on the system operation conditions, determine the abnormal information that does not meet the system operation conditions from the hierarchical operation status information, and determine the equipment operation adjustment requirements of the battery system based on the abnormal information and the system operation conditions. This can improve the accuracy of the analysis of the operation status of the architecture level to be detected, thereby improving the accuracy of the judgment of whether the battery system meets the system operation conditions, thereby improving the execution accuracy of the determination operation of the equipment operation adjustment requirements, which is beneficial to improving the accuracy of the determination of the equipment operation adjustment requirements.

[0203] In this optional embodiment, optionally, the architecture level to be detected includes a battery pack level, and the level device corresponding to the battery pack level includes a plurality of battery packs;

[0204] The specific manner in which the analysis module 302 analyzes the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data may include:

[0205] Determine the battery parameters of each battery pack included in the battery pack level and the life parameters of each battery pack according to the system operation data; the battery parameters include at least one of battery voltage, battery current, battery temperature, battery internal resistance and battery capacity; the battery life parameters include at least one of cycle life, calendar life and actual battery use time;

[0206] Evaluate usage difference information between multiple battery packs in a battery pack level according to each battery parameter and each life parameter; the usage difference information includes a battery parameter difference value and a life parameter difference value;

[0207] All battery parameters, all life parameters and usage difference information are determined as the device usage corresponding to the battery pack level; wherein the level operation information includes the device usage.

[0208] It can be seen that the device described in implementing this optional embodiment can also determine the battery parameters of each battery pack included in the battery pack level and the life parameters of each battery pack based on the system operation data, and then evaluate the usage difference information between multiple battery packs in the battery pack level based on the battery parameters and life parameters, and then determine the battery parameters, life parameters and usage difference information as the equipment usage corresponding to the battery pack level, which can improve the accuracy of the analysis of the battery pack usage, thereby improving the accuracy of the analysis of the usage differences of battery packs in the same level, which in turn is conducive to improving the accuracy of determining the equipment usage corresponding to the battery pack level, and is conducive to improving the accuracy of the subsequent judgment of whether the battery system meets the system operation conditions.

[0209] In this optional embodiment, optionally, when the hierarchical operation status information includes the equipment usage status, the specific manner in which the analysis module 302 determines whether the battery system meets the preset system operation conditions according to the hierarchical operation status information may include:

[0210] Analyze the difference safety factors corresponding to the battery pack level according to the differences in usage of the equipment;

[0211] Determine whether the difference safety factor is greater than or equal to the preset safety factor;

[0212] When it is determined that the difference safety factor is greater than or equal to the preset safety factor, determining that the battery system meets the preset system operating conditions;

[0213] When it is determined that the difference safety factor is less than the preset safety factor, it is determined that the battery system does not meet the preset system operating conditions;

[0214] And, when the difference safety factor is less than the preset safety factor, the equipment operation adjustment requirements corresponding to the battery system include equipment balancing requirements.

[0215] It can be seen that the device described in the implementation of this optional embodiment can also analyze the differential safety factor corresponding to the battery pack level according to the usage differences in the equipment usage. When it is judged that the differential safety factor is greater than or equal to the preset safety factor, it is determined that the battery system meets the preset system operating conditions; when it is judged that the differential safety factor is less than the preset safety factor, it is determined that the battery system does not meet the preset system operating conditions. The accuracy of determining the differential safety factor can be improved, thereby improving the accuracy of analyzing the safety level of the battery pack level, and can also further improve the accuracy of judging whether the battery system meets the system operating conditions based on the differential safety factor, which is beneficial to further improve the accuracy of determining the equipment operation adjustment requirements.

[0216] In this optional embodiment, optionally, the battery system further includes a battery cluster level, the level equipment corresponding to the battery cluster level includes a plurality of battery clusters, and each battery cluster includes a plurality of battery packs;

[0217] The specific manner in which the analysis module 302 analyzes the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data may include:

[0218] Obtain the operating standard parameters corresponding to each architecture level to be tested;

[0219] For each architecture level to be detected, compare the device operation data corresponding to each level device in the architecture level to be detected with the operation standard parameters corresponding to the architecture level to be detected, and obtain the operation parameter comparison result corresponding to the architecture level to be detected;

[0220] For each architecture level to be detected, determining the device aging coefficient corresponding to each level device in the architecture level to be detected according to the device operation data corresponding to each level device in the architecture level to be detected;

[0221] For each architecture level to be detected, the operation abnormality coefficient corresponding to each level device in the architecture level to be detected is determined according to the operation parameter comparison result corresponding to the architecture level to be detected and the equipment aging coefficient corresponding to each level device, and the operation abnormality coefficient corresponding to all level devices in the architecture level to be detected is determined as the equipment operation abnormality status corresponding to the architecture level to be detected; wherein the level operation status information includes the equipment operation abnormality status.

[0222] It can be seen that the device described in the implementation of this optional embodiment can also compare the equipment operation data corresponding to each level device in the architecture level to be detected with the acquired operation standard parameters corresponding to the architecture level to be detected for each architecture level to be detected, obtain the operation parameter comparison result corresponding to the architecture level to be detected, and determine the equipment aging coefficient corresponding to each level device in the architecture level to be detected according to the equipment operation data corresponding to each level device in the architecture level to be detected, and then determine the operation abnormality coefficient corresponding to each level device in the architecture level to be detected according to the operation parameter comparison result and the equipment aging coefficient, and determine the operation abnormality coefficient corresponding to all level devices in the architecture level to be detected as the equipment operation abnormality corresponding to the architecture level to be detected, which can improve the comparison accuracy of the operation status of each level device and the analysis accuracy of the equipment aging status of each level device, so as to improve the determination accuracy of the operation abnormality coefficient of each level device, so as to improve the analysis accuracy of whether each level device is operating normally, and then help to improve the determination accuracy of the equipment usage corresponding to the architecture level to be detected, and help to improve the accuracy of the subsequent judgment of whether the battery system meets the system operating conditions.

[0223] In this optional embodiment, optionally, when the hierarchical operation status information includes abnormal operation of the equipment, the specific manner in which the analysis module 302 determines whether the battery system meets the preset system operation conditions according to the hierarchical operation status information may include:

[0224] When the operation abnormality coefficient corresponding to any level of equipment is greater than or equal to the preset abnormality coefficient, the level of equipment is determined as an abnormal equipment;

[0225] For each architecture level to be detected, count the number of abnormal devices corresponding to the architecture level to be detected, and analyze the impact coefficient of all abnormal devices corresponding to the architecture level to be detected on the operation of the architecture level to be detected;

[0226] For each architecture level to be detected, determine whether the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and whether the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient;

[0227] For each architecture level to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient, the architecture level to be detected is determined as a normal operating level;

[0228] For each architecture level to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is greater than the preset number of devices or the operation impact coefficient corresponding to the architecture level to be detected is greater than the preset impact coefficient, the architecture level to be detected is determined as an abnormal operation level;

[0229] When the battery system does not have an abnormal operation level, determining that the battery system meets a preset system operation condition;

[0230] When the battery system has at least one abnormal operation level, determining that the battery system does not meet a preset system operation condition;

[0231] Furthermore, when the battery system has at least one abnormal operation level, the equipment operation adjustment requirements corresponding to the battery system include equipment switching requirements.

[0232] It can be seen that the device described in the implementation of this optional embodiment can also determine any hierarchical device whose operation abnormality coefficient is greater than or equal to the preset abnormality coefficient as an abnormal device, and count the number of abnormal devices corresponding to each architecture level to be detected, and analyze the operation influence coefficient of all abnormal devices corresponding to each architecture level to be detected on the architecture level to be detected, and then determine whether the number of abnormal devices corresponding to each architecture level to be detected is less than or equal to the preset number of devices and whether the operation influence coefficient corresponding to the architecture level to be detected is less than or equal to the preset influence coefficient. If it is determined that the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and the operation influence coefficient corresponding to the architecture level to be detected is less than or equal to the preset influence coefficient, number, the architecture level to be detected is determined as the normal operating level; otherwise, the architecture level to be detected is determined as the abnormal operating level. When the battery system does not have an abnormal operating level, it is determined that the battery system meets the preset system operating conditions. When the battery system has at least one abnormal operating level, it is determined that the battery system does not meet the preset system operating conditions. This can improve the accuracy of determining abnormal equipment and the accuracy of determining the operation impact coefficient, thereby improving the accuracy and flexibility of analyzing abnormal situations in the architecture level, and further improve the accuracy and flexibility of judging whether the battery system meets the system operating conditions based on the abnormal situation, which is conducive to further improving the accuracy of determining the equipment operation adjustment requirements.

[0233] In another optional embodiment, the specific manner in which the determination module 303 determines the target level in the battery system and the level control parameters corresponding to the target level according to the equipment operation adjustment requirements may include:

[0234] When the equipment operation adjustment requirements include equipment balancing requirements, the battery pack level is determined as the target level in the battery system, and the level control parameters corresponding to the battery pack level are determined according to the equipment balancing requirements; the level control parameters include the balancing control parameters corresponding to the battery pack level; the balancing control parameters include the balancing control mode and the balancing adjustment parameters corresponding to the balancing control mode;

[0235] When the equipment operation adjustment demand includes the equipment switching demand, the abnormal operation level corresponding to the equipment switching demand is determined as the target level in the battery system, and the level control parameters corresponding to the target level are determined according to the equipment switching demand; the level control parameters include the switching control parameters corresponding to each level of equipment, and the switching control parameters include at least one of the commissioning control parameters, the cutting off control parameters and the re-inspection control parameters.

[0236] It can be seen that the device described in the implementation of this optional embodiment can determine the battery pack level as the target level when the equipment operation adjustment requirements include equipment balancing requirements, and determine the corresponding balancing control parameters according to the equipment balancing requirements; and when the equipment operation adjustment requirements include equipment switching requirements, determine the abnormal operation level as the target level, and determine the corresponding switching control parameters according to the equipment switching requirements. This can improve the flexibility and accuracy of determining the level control parameters, which is beneficial to improving the accuracy of determining the control parameters of the level that needs to be adjusted and the level equipment, and further helps to improve the adjustment accuracy of the level equipment in the battery system, and further helps to improve the control accuracy of the batteries in the energy storage system.

[0237] Embodiment 4

[0238] See also Figure 4 , Figure 4 FIG. 1 is a schematic diagram of another battery hierarchical control device for an energy storage system disclosed in an embodiment of the present invention. Figure 4 As shown, the battery hierarchical control device applied to the energy storage system may include:

[0239] A memory 401 storing executable program codes;

[0240] a processor 402 coupled to the memory 401;

[0241] The processor 402 calls the executable program code stored in the memory 401 to execute the steps of the battery hierarchical control method applied to the energy storage system described in the first embodiment of the present invention or the second embodiment of the present invention.

[0242] Embodiment 5

[0243] An embodiment of the present invention discloses a computer storage medium, which stores computer instructions. When the computer instructions are called, they are used to execute the steps of the battery hierarchical control method applied to an energy storage system described in Embodiment 1 or Embodiment 2 of the present invention.

[0244] Embodiment 6

[0245] An embodiment of the present invention discloses a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to enable a computer to execute the steps of the battery hierarchical control method applied to an energy storage system described in Example 1 or Example 2.

[0246] The device embodiments described above are only illustrative, wherein the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, i.e., they may be located in one place, or they may be distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Those of ordinary skill in the art may understand and implement it without creative work.

[0247] Through the specific description of the above embodiments, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the above technical solution can be essentially or partly contributed to the prior art in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, and the storage medium includes a read-only memory (ROM), a random access memory (RAM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), a one-time programmable read-only memory (OTPROM), an electronically erasable rewritable read-only memory (EEPROM), a compact disc (CD-ROM) or other optical disc storage, magnetic disk storage, magnetic tape storage, or any other computer-readable medium that can be used to carry or store data.

[0248] Finally, it should be noted that the battery hierarchical control method and device for energy storage system disclosed in the embodiment of the present invention discloses only the preferred embodiment of the present invention, which is only used to illustrate the technical solution of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A battery hierarchical control method applied to an energy storage system, characterized in that: The method comprises: Collecting system operation data corresponding to the battery system in the energy storage system; the battery system includes multiple architecture levels, each of which is one of a battery cluster level, a battery pack level, a battery module level and a battery cell level; each of the architecture levels includes multiple level devices corresponding to the architecture level; the system operation data includes device operation data corresponding to each of the level devices; Analyzing the equipment operation adjustment requirements corresponding to the battery system according to the system operation data; the equipment operation adjustment requirements include equipment balancing requirements and / or equipment switching requirements; Determining a target level in the battery system and a level control parameter corresponding to the target level according to the equipment operation adjustment requirement; According to the hierarchical control parameter, controlling each hierarchical device in the target hierarchical level to perform an operation corresponding to the hierarchical control parameter; Wherein, determining the target level in the battery system and the level control parameters corresponding to the target level according to the equipment operation adjustment requirements includes: When the equipment operation adjustment requirement includes the equipment balancing requirement, the battery pack level is determined as the target level in the battery system, and the level control parameters corresponding to the battery pack level are determined according to the equipment balancing requirement; the level control parameters include the balancing control parameters corresponding to the battery pack level; the balancing control parameters include the balancing control mode and the balancing adjustment parameters corresponding to the balancing control mode; When the equipment operation adjustment requirement includes the equipment switching requirement, the abnormal operation level corresponding to the equipment switching requirement is determined as the target level in the battery system, and the level control parameters corresponding to the target level are determined according to the equipment switching requirement; the level control parameters include the switching control parameters corresponding to each of the level equipment, and the switching control parameters include at least one of the commissioning control parameters, the cutting off control parameters and the re-inspection control parameters.

2. The battery hierarchical control method applied to the energy storage system according to claim 1, characterized in that: The analyzing, according to the system operation data, the equipment operation adjustment requirements corresponding to the battery system includes: Analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data; the architecture level to be detected includes at least one of the architecture levels; the hierarchical operation information includes equipment usage and / or equipment operation abnormality; According to the hierarchical operation information, determining whether the battery system meets a preset system operation condition; When it is determined that the battery system does not meet the system operating conditions, based on the system operating conditions, abnormal information that does not meet the system operating conditions is determined from the hierarchical operating status information, and based on the abnormal information and the system operating conditions, the equipment operation adjustment requirements corresponding to the battery system are determined.

3. The battery hierarchical control method applied to the energy storage system according to claim 2, characterized in that: The architecture level to be detected includes the battery pack level, and the level devices corresponding to the battery pack level include multiple battery packs; Wherein, analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data includes: Determine, according to the system operation data, the battery parameters of each battery pack included in the battery pack level and the life parameters of each battery pack; the battery parameters include at least one of battery voltage, battery current, battery temperature, battery internal resistance and battery capacity; the life parameters include at least one of cycle life, calendar life and actual battery use time; According to each of the battery parameters and each of the life parameters, evaluating usage difference information between the plurality of the battery packs in the battery pack level; the usage difference information comprising a battery parameter difference value and a life parameter difference value; All the battery parameters, all the life parameters and the usage difference information are determined as the device usage corresponding to the battery pack level; wherein the level operation status information includes the device usage.

4. The battery hierarchical control method applied to the energy storage system according to claim 3 is characterized in that: When the hierarchical operation information includes the device usage, judging whether the battery system meets a preset system operation condition according to the hierarchical operation information includes: Analyzing the difference safety factor corresponding to the battery pack level according to the usage difference in the device usage; Determining whether the difference safety factor is greater than or equal to a preset safety factor; When it is determined that the difference safety factor is greater than or equal to the preset safety factor, determining that the battery system meets a preset system operating condition; When it is determined that the difference safety factor is less than the preset safety factor, determining that the battery system does not meet the preset system operating conditions; And, when the difference safety factor is less than the preset safety factor, the equipment operation adjustment requirement corresponding to the battery system includes the equipment balancing requirement.

5. The battery hierarchical control method applied to the energy storage system according to claim 3 is characterized in that: The battery system further comprises the battery cluster level, the level equipment corresponding to the battery cluster level comprises a plurality of battery clusters, and each of the battery clusters comprises a plurality of the battery packs; Wherein, analyzing the hierarchical operation information corresponding to the architecture level to be detected in the battery system according to the system operation data includes: Obtaining the operating standard parameters corresponding to each of the architecture levels to be detected; For each of the architecture levels to be detected, compare the device operation data corresponding to each of the level devices in the architecture level to be detected with the operation standard parameters corresponding to the architecture level to be detected, and obtain the operation parameter comparison result corresponding to the architecture level to be detected; For each of the architecture levels to be detected, determining a device aging coefficient corresponding to each of the level devices in the architecture level to be detected according to device operation data corresponding to each of the level devices in the architecture level to be detected; For each of the architectural layers to be detected, the operation abnormality coefficient corresponding to each of the layer devices in the architectural layer to be detected is determined according to the operation parameter comparison result corresponding to the architectural layer to be detected and the equipment aging coefficient corresponding to each of the layer devices, and the operation abnormality coefficient corresponding to all of the layer devices in the architectural layer to be detected is determined as the equipment operation abnormality status corresponding to the architectural layer to be detected; wherein, the layer operation status information includes the equipment operation abnormality status.

6. The battery hierarchical control method applied to the energy storage system according to claim 5, characterized in that: When the hierarchical operation information includes the abnormal operation of the device, judging whether the battery system meets a preset system operation condition according to the hierarchical operation information includes: When the operation abnormality coefficient corresponding to any of the hierarchical devices is greater than or equal to the preset abnormality coefficient, the hierarchical device is determined as an abnormal device; For each of the architecture levels to be detected, the number of abnormal devices corresponding to the architecture level to be detected is counted, and the operation influence coefficient of all abnormal devices corresponding to the architecture level to be detected on the architecture level to be detected is analyzed; For each of the architecture levels to be detected, determine whether the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and whether the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient; For each of the architecture levels to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is less than or equal to the preset number of devices and the operation impact coefficient corresponding to the architecture level to be detected is less than or equal to the preset impact coefficient, the architecture level to be detected is determined as a normal operating level; For each of the architecture levels to be detected, when it is determined that the number of abnormal devices corresponding to the architecture level to be detected is greater than the preset number of devices or the operation impact coefficient corresponding to the architecture level to be detected is greater than the preset impact coefficient, the architecture level to be detected is determined as an abnormal operation level; When the battery system does not have the abnormal operation level, determining that the battery system meets a preset system operation condition; When the battery system has at least one abnormal operation level, determining that the battery system does not meet a preset system operation condition; Furthermore, when the battery system has at least one abnormal operation level, the equipment operation adjustment requirement corresponding to the battery system includes the equipment switching requirement.

7. A battery hierarchical control device applied to an energy storage system, characterized in that: The device comprises: A collection module is used to collect system operation data corresponding to a battery system in an energy storage system; the battery system includes multiple architecture levels, each of which is one of a battery cluster level, a battery pack level, a battery module level, and a battery cell level; each of the architecture levels includes multiple level devices corresponding to the architecture level; the system operation data includes device operation data corresponding to each of the level devices; An analysis module, used for analyzing the equipment operation adjustment requirements corresponding to the battery system according to the system operation data; the equipment operation adjustment requirements include equipment balancing requirements and / or equipment switching requirements; A determination module, configured to determine a target level in the battery system and a level control parameter corresponding to the target level according to the equipment operation adjustment requirement; A control module, configured to control each of the hierarchical devices in the target hierarchical level to perform an operation corresponding to the hierarchical control parameter according to the hierarchical control parameter; The specific manner in which the determination module determines the target level in the battery system and the level control parameters corresponding to the target level according to the equipment operation adjustment requirements includes: When the equipment operation adjustment requirement includes the equipment balancing requirement, the battery pack level is determined as the target level in the battery system, and the level control parameters corresponding to the battery pack level are determined according to the equipment balancing requirement; the level control parameters include the balancing control parameters corresponding to the battery pack level; the balancing control parameters include the balancing control mode and the balancing adjustment parameters corresponding to the balancing control mode; When the equipment operation adjustment requirement includes the equipment switching requirement, the abnormal operation level corresponding to the equipment switching requirement is determined as the target level in the battery system, and the level control parameters corresponding to the target level are determined according to the equipment switching requirement; the level control parameters include the switching control parameters corresponding to each of the level equipment, and the switching control parameters include at least one of the commissioning control parameters, the cutting off control parameters and the re-inspection control parameters.

8. A battery hierarchical control device applied to an energy storage system, characterized in that: The device comprises: A memory storing executable program code; a processor coupled to the memory; The processor calls the executable program code stored in the memory to execute the battery hierarchical control method applied to the energy storage system as described in any one of claims 1-6.

9. A computer storage medium, characterized in that The computer storage medium stores computer instructions, which, when called, are used to execute the battery hierarchical control method applied to the energy storage system as described in any one of claims 1-6.

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