A method, system and medium for autonomous management of energy storage battery without communication

Abstract

The present application provides a method, system and medium for autonomous management of energy storage batteries without communication. The method includes: performing performance testing on the energy storage battery without communication, obtaining performance test data, processing the performance test data to obtain a charge and discharge performance evaluation index, a coordinated response performance evaluation index, a fault handling capability evaluation index and a battery pack balancing performance evaluation index, and further processing to obtain an autonomous management capability evaluation index without communication, thereby realizing a technology for evaluating the autonomous management capability of energy storage batteries without communication.

Description

Technical Field

[0001] The present application relates to the technical field of autonomous management of energy storage batteries without communication, and in particular to a method, system and medium for autonomous management of energy storage batteries without communication. Background Art

[0002] Traditional battery management systems (BMS) often rely on communication connections to achieve monitoring and control coordination of each battery module. However, in some complex environments or specific application scenarios, communications may be interfered with, interrupted, or even unable to be established, which places higher demands on the energy storage battery's ability to manage itself without communication. At present, the technology for evaluating the autonomous management capabilities of energy storage batteries in a non-communication state is often not perfect. Existing solutions often only focus on monitoring a single performance indicator or simple fault warnings. There is a lack of comprehensive and systematic evaluation and management methods for energy storage batteries in a non-communication environment, making it difficult to meet the high reliability and high-performance operation requirements of energy storage batteries in communication interruption scenarios. Therefore, there is an urgent need for a technology that can comprehensively evaluate energy storage batteries in a non-communication state. Summary of the invention

[0003] The purpose of this application is to provide a method, system and medium for autonomous management of energy storage batteries without communication, which can quantitatively evaluate the charging and discharging control effect of energy storage batteries, the collaborative working ability between multiple battery packs, the balancing performance within the battery pack and the rapid fault handling capability in a non-communication state, and help improve the operating stability, reliability and durability of the energy storage battery system in a communication failure or non-communication environment.

[0004] The present application also provides a method for autonomous management of energy storage batteries without communication, comprising the following steps:

[0005] Perform performance tests on energy storage batteries without communication to obtain performance test data, including charge and discharge control test data, multi-battery group coordinated response test data, battery group balanced performance test data, response time data and fault detection data;

[0006] Obtaining a charge and discharge performance evaluation index according to the charge and discharge control detection data and the response time data;

[0007] Obtaining a collaborative response performance evaluation index according to the multi-battery group collaborative response detection data and the response time data;

[0008] Obtaining a fault handling capability evaluation index according to the fault detection data processing;

[0009] Obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data processing;

[0010] The non-communication autonomous management capability evaluation index is obtained according to the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and the test qualification is determined.

[0011] Optionally, in the energy storage battery non-communication autonomous management method described in the present application, the energy storage battery is subjected to a performance test in a non-communication state to obtain performance test data, including charge and discharge control detection data, multi-battery group coordinated response detection data, battery group balancing performance detection data, response time data and fault detection data, including:

[0012] The charge and discharge control detection data includes voltage control deviation, capacity retention rate and capacity decay rate, and the multi-battery group coordinated response detection data includes power distribution accuracy and energy distribution balance;

[0013] The battery pack balancing performance detection data includes a state of charge difference, a capacity difference and a temperature difference;

[0014] The response time data includes charge and discharge instruction response time, power response time and inter-group voltage balance adjustment time, and the fault detection data includes fault location time, fault recovery time and fault detection accuracy.

[0015] Optionally, in the energy storage battery non-communication autonomous management method described in the present application, the processing of the charge and discharge control detection data and the response time data to obtain a charge and discharge performance evaluation index includes:

[0016] A charge and discharge performance evaluation index is obtained according to the voltage control deviation, capacity retention rate, capacity decay rate and the charge and discharge instruction response time.

[0017] Optionally, in the energy storage battery non-communication autonomous management method described in the present application, the step of obtaining a collaborative response performance evaluation index based on the collaborative response detection data of the multiple battery groups and the response time data includes:

[0018] A coordinated response performance evaluation index is obtained according to the power distribution accuracy, energy distribution balance, power response time, and inter-group voltage balance adjustment time.

[0019] Optionally, in the energy storage battery non-communication autonomous management method described in the present application, the obtaining of a fault handling capability evaluation index according to the fault detection data processing includes:

[0020] A fault handling capability evaluation index is obtained according to the fault locating time, fault recovery time and fault detection accuracy.

[0021] Optionally, in the energy storage battery non-communication autonomous management method described in the present application, the step of obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data processing includes:

[0022] The battery pack balancing performance evaluation index is obtained according to the state of charge difference, capacity difference and temperature difference.

[0023] Optionally, in the energy storage battery non-communication autonomous management method described in the present application, the non-communication autonomous management capability evaluation index is obtained according to the charging and discharging performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and the test qualification determination is performed, including:

[0024] Inputting the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index into a preset autonomous management capability evaluation model to obtain a non-communication autonomous management capability evaluation index;

[0025] Perform performance tests on energy storage batteries in a communication state and obtain an autonomous management capability evaluation index;

[0026] The non-communication autonomous management capability evaluation index is compared with the autonomous management capability evaluation index. If the comparison result does not meet the preset comparison result requirement, a test failure determination is made.

[0027] In a second aspect, the present application provides an energy storage battery non-communication autonomous management system, the system comprising: a memory and a processor, the memory storing a program of an energy storage battery non-communication autonomous management method, and the program of the energy storage battery non-communication autonomous management method is executed by the processor to implement the following steps:

[0028] Perform performance tests on energy storage batteries without communication to obtain performance test data, including charge and discharge control test data, multi-battery group coordinated response test data, battery group balanced performance test data, response time data and fault detection data;

[0029] Obtaining a charge and discharge performance evaluation index according to the charge and discharge control detection data and the response time data;

[0030] Obtaining a collaborative response performance evaluation index according to the multi-battery group collaborative response detection data and the response time data;

[0031] Obtaining a fault handling capability evaluation index according to the fault detection data processing;

[0032] Obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data processing;

[0033] The non-communication autonomous management capability evaluation index is obtained according to the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and the test qualification is determined.

[0034] Optionally, in the energy storage battery non-communication autonomous management system described in the present application, the energy storage battery is subjected to a performance test in a non-communication state to obtain performance test data, including charge and discharge control detection data, multi-battery group coordinated response detection data, battery group balancing performance detection data, response time data and fault detection data, including:

[0035] The charge and discharge control detection data includes voltage control deviation, capacity retention rate and capacity decay rate, and the multi-battery group coordinated response detection data includes power distribution accuracy and energy distribution balance;

[0036] The battery pack balancing performance detection data includes a state of charge difference, a capacity difference and a temperature difference;

[0037] The response time data includes charge and discharge instruction response time, power response time and inter-group voltage balance adjustment time, and the fault detection data includes fault location time, fault recovery time and fault detection accuracy.

[0038] In a third aspect, the present application also provides a computer-readable storage medium, in which a program for the method for autonomous management of an energy storage battery without communication is stored. When the program for the method for autonomous management of an energy storage battery without communication is executed by a processor, the steps of the method for autonomous management of an energy storage battery without communication as described in any one of the above items are implemented.

[0039] From the above, it can be seen that the present application provides a method, system and medium for autonomous management of energy storage batteries without communication, which quantitatively evaluates the charging and discharging control effect of the energy storage battery, the collaborative working ability between multiple battery packs, the balancing performance within the battery pack, and the rapid fault handling capability in a non-communication state, which helps to improve the operating stability, reliability and durability of the energy storage battery system in a communication failure or non-communication environment.

[0040] Other features and advantages of the present application will be described in the following description, and partly become apparent from the description, or understood by practicing the embodiments of the present application. The purpose and other advantages of the present application can be realized and obtained by the structures specifically pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A flowchart of a method for autonomous management of energy storage batteries without communication provided in an embodiment of the present application;

[0043] Figure 2 A flowchart for determining the test eligibility of the energy storage battery without communication autonomous management method provided in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0045] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of this application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0046] Please refer to Figure 1 , Figure 1 The flowchart of the energy storage battery non-communication autonomous management method in some embodiments of the present application. The energy storage battery non-communication autonomous management method is used in terminal equipment, such as computers, mobile phone terminals, etc. The energy storage battery non-communication autonomous management method includes the following steps:

[0047] S11. Performing a performance test on the energy storage battery in a non-communication state to obtain performance test data, including charge and discharge control detection data, multi-battery group coordinated response detection data, battery group balancing performance detection data, response time data and fault detection data;

[0048] S12, obtaining a charge and discharge performance evaluation index according to the charge and discharge control detection data and the response time data;

[0049] S13, obtaining a coordinated response performance evaluation index according to the multi-battery group coordinated response detection data and the response time data;

[0050] S14, obtaining a fault handling capability evaluation index according to the fault detection data processing;

[0051] S15, obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data;

[0052] S16. Obtain a non-communication autonomous management capability evaluation index according to the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and make a test qualification determination.

[0053] It should be noted that in order to evaluate the charge and discharge control effect of the energy storage battery in a non-communication state, the collaborative working ability between multiple battery packs, the balancing performance within the battery pack, and the rapid fault handling capability, the acquired charge and discharge control detection data, the multi-battery pack collaborative response detection data, the battery pack balancing performance detection data, the response time data and the fault detection data are processed to obtain the charge and discharge performance evaluation index, the collaborative response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and further process to obtain the non-communication autonomous management capability evaluation index, so as to realize the technology of comprehensively evaluating the performance of the energy storage battery in a non-communication state.

[0054] According to an embodiment of the present invention, the energy storage battery is subjected to a performance test in a non-communication state to obtain performance test data, including charge and discharge control detection data, multi-battery group coordinated response detection data, battery group balancing performance detection data, response time data and fault detection data, including:

[0055] The charge and discharge control detection data includes voltage control deviation, capacity retention rate and capacity decay rate, and the multi-battery group coordinated response detection data includes power distribution accuracy and energy distribution balance;

[0056] The battery pack balancing performance detection data includes a state of charge difference, a capacity difference and a temperature difference;

[0057] The response time data includes charge and discharge instruction response time, power response time and inter-group voltage balance adjustment time, and the fault detection data includes fault location time, fault recovery time and fault detection accuracy.

[0058] It should be noted that the voltage control deviation can be expressed by calculating the deviation between the measured battery voltage and the set voltage during the charge and discharge process. The larger the voltage deviation, the lower the control accuracy. The capacity decay rate refers to the speed at which the battery capacity decreases per unit cycle during use. The capacity retention rate refers to the ratio of the remaining capacity of the battery to the initial capacity after a certain number of charge and discharge cycles. The power distribution accuracy can be measured by calculating the percentage deviation between the actual output power and the expected power. The energy distribution balance is an indicator of the uniformity of energy distribution between each battery pack during the collaborative work of multiple battery packs, which can be obtained by calculating the standard deviation of the energy change of each battery pack. The battery pack balance performance test data includes the state of charge difference, capacity difference and temperature difference. The maximum values ​​of the state of charge difference, capacity difference and temperature difference between different battery packs can be used as the state of charge difference, capacity difference and temperature difference, respectively.

[0059] According to an embodiment of the present invention, the step of obtaining a charge and discharge performance evaluation index according to the charge and discharge control detection data and the response time data includes:

[0060] A charge and discharge performance evaluation index is obtained according to the voltage control deviation, capacity retention rate, capacity decay rate and the charge and discharge instruction response time.

[0061] It should be noted that the charge and discharge performance evaluation index is obtained according to the voltage control deviation, capacity retention rate, capacity decay rate and the charge and discharge instruction response time;

[0062] The calculation formula of the charge and discharge performance evaluation index is:

[0063] ;

[0064] in, is the charge and discharge performance evaluation index, , , and They are voltage control deviation, capacity retention rate, capacity decay rate and charge and discharge instruction response time. , , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0065] According to an embodiment of the present invention, the step of obtaining a collaborative response performance evaluation index based on the multi-battery collaborative response detection data and the response time data includes:

[0066] A coordinated response performance evaluation index is obtained according to the power distribution accuracy, energy distribution balance, power response time, and inter-group voltage balance adjustment time.

[0067] It should be noted that the coordinated response performance evaluation index is obtained according to the power distribution accuracy, energy distribution balance, power response time, and inter-group voltage balance adjustment time;

[0068] The calculation formula of the collaborative response performance evaluation index is:

[0069] ;

[0070] in, is the collaborative response performance evaluation index, , , and They are power distribution accuracy, energy distribution balance, power response time and inter-group voltage balance adjustment time. , , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0071] According to an embodiment of the present invention, the obtaining a fault handling capability evaluation index according to the fault detection data processing includes:

[0072] A fault handling capability evaluation index is obtained according to the fault locating time, fault recovery time and fault detection accuracy.

[0073] It should be noted that the fault handling capability evaluation index is obtained according to the fault location time, fault recovery time and fault detection accuracy;

[0074] The calculation formula of the fault handling capability evaluation index is:

[0075] ;

[0076] in, is the fault handling capability evaluation index, , and They are fault detection accuracy, fault location time and fault recovery time, respectively. , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0077] According to an embodiment of the present invention, the step of obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data includes:

[0078] The battery pack balancing performance evaluation index is obtained according to the state of charge difference, capacity difference and temperature difference.

[0079] It should be noted that the battery pack balancing performance evaluation index is obtained according to the state of charge difference, capacity difference and temperature difference;

[0080] The calculation formula of the battery pack balancing performance evaluation index is:

[0081] ;

[0082] in, is the battery pack balancing performance evaluation index, , and They are respectively the state of charge difference, capacity difference and temperature difference, , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0083] Please refer to Figure 2 , Figure 2 The present invention is a flowchart of the energy storage battery non-communication autonomous management method for testing qualification determination in some embodiments of the present application. According to the embodiment of the present invention, the non-communication autonomous management capability evaluation index is obtained according to the charging and discharging performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and the test qualification determination is performed, including:

[0084] S21, inputting the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index into a preset autonomous management capability evaluation model to obtain a non-communication autonomous management capability evaluation index;

[0085] S22. Perform performance test on the energy storage battery in a communication state and obtain the autonomous management capability evaluation index;

[0086] S23: Compare the non-communication autonomous management capability evaluation index with the autonomous management capability evaluation index. If the comparison result does not meet the preset comparison result requirement, make a test failure determination.

[0087] It should be noted that the energy storage battery is subjected to the same performance test in the communication state and the non-communication state, and the autonomous management capability evaluation index in the communication state is obtained and compared with the autonomous management capability evaluation index without communication. If the comparison result shows that there is a large difference between the two, it means that the current energy storage battery has poor autonomous management capability in the non-communication state and needs to be adjusted.

[0088] The calculation formula of the non-communication autonomous management capability evaluation model is:

[0089] ;

[0090] in, The index of autonomous management capability without communication is is the charge and discharge performance evaluation index, is the collaborative response performance evaluation index, is the fault handling capability evaluation index, is the battery pack balancing performance evaluation index, , , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0091] The present invention also discloses an energy storage battery non-communication autonomous management system, comprising a memory and a processor, wherein the memory stores an energy storage battery non-communication autonomous management method program, and when the energy storage battery non-communication autonomous management method program is executed by the processor, the following steps are implemented:

[0092] Perform performance tests on energy storage batteries without communication to obtain performance test data, including charge and discharge control test data, multi-battery group coordinated response test data, battery group balanced performance test data, response time data and fault detection data;

[0093] Obtaining a charge and discharge performance evaluation index according to the charge and discharge control detection data and the response time data;

[0094] Obtaining a collaborative response performance evaluation index according to the multi-battery group collaborative response detection data and the response time data;

[0095] Obtaining a fault handling capability evaluation index according to the fault detection data processing;

[0096] Obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data processing;

[0097] The non-communication autonomous management capability evaluation index is obtained according to the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and the test qualification is determined.

[0098] It should be noted that in order to evaluate the charge and discharge control effect of the energy storage battery in a non-communication state, the collaborative working ability between multiple battery packs, the balancing performance within the battery pack, and the rapid fault handling capability, the acquired charge and discharge control detection data, the multi-battery pack collaborative response detection data, the battery pack balancing performance detection data, the response time data and the fault detection data are processed to obtain the charge and discharge performance evaluation index, the collaborative response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and further process to obtain the non-communication autonomous management capability evaluation index, so as to realize the technology of comprehensively evaluating the performance of the energy storage battery in a non-communication state.

[0099] According to an embodiment of the present invention, the energy storage battery is subjected to a performance test in a non-communication state to obtain performance test data, including charge and discharge control detection data, multi-battery group coordinated response detection data, battery group balancing performance detection data, response time data and fault detection data, including:

[0100] The charge and discharge control detection data includes voltage control deviation, capacity retention rate and capacity decay rate, and the multi-battery group coordinated response detection data includes power distribution accuracy and energy distribution balance;

[0101] The battery pack balancing performance detection data includes a state of charge difference, a capacity difference and a temperature difference;

[0102] The response time data includes charge and discharge instruction response time, power response time and inter-group voltage balance adjustment time, and the fault detection data includes fault location time, fault recovery time and fault detection accuracy.

[0103] It should be noted that the voltage control deviation can be expressed by calculating the deviation between the measured battery voltage and the set voltage during the charge and discharge process. The larger the voltage deviation, the lower the control accuracy. The capacity decay rate refers to the speed at which the battery capacity decreases per unit cycle during use. The capacity retention rate refers to the ratio of the remaining capacity of the battery to the initial capacity after a certain number of charge and discharge cycles. The power distribution accuracy can be measured by calculating the percentage deviation between the actual output power and the expected power. The energy distribution balance is an indicator of the uniformity of energy distribution between each battery pack during the collaborative work of multiple battery packs, which can be obtained by calculating the standard deviation of the energy change of each battery pack. The battery pack balance performance test data includes the state of charge difference, capacity difference and temperature difference. The maximum values ​​of the state of charge difference, capacity difference and temperature difference between different battery packs can be used as the state of charge difference, capacity difference and temperature difference, respectively.

[0104] According to an embodiment of the present invention, the processing of the charge and discharge control detection data and the response time data to obtain a charge and discharge performance evaluation index includes:

[0105] A charge and discharge performance evaluation index is obtained according to the voltage control deviation, capacity retention rate, capacity decay rate and the charge and discharge instruction response time.

[0106] It should be noted that the charge and discharge performance evaluation index is obtained according to the voltage control deviation, capacity retention rate, capacity decay rate and the charge and discharge instruction response time;

[0107] The calculation formula of the charge and discharge performance evaluation index is:

[0108] ;

[0109] in, is the charge and discharge performance evaluation index, , , and They are voltage control deviation, capacity retention rate, capacity decay rate and charge and discharge instruction response time. , , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0110] According to an embodiment of the present invention, the step of obtaining a collaborative response performance evaluation index based on the multi-battery collaborative response detection data and the response time data includes:

[0111] A coordinated response performance evaluation index is obtained according to the power distribution accuracy, energy distribution balance, power response time, and inter-group voltage balance adjustment time.

[0112] It should be noted that the coordinated response performance evaluation index is obtained according to the power distribution accuracy, energy distribution balance, power response time, and inter-group voltage balance adjustment time;

[0113] The calculation formula of the collaborative response performance evaluation index is:

[0114] ;

[0115] in, is the collaborative response performance evaluation index, , , and They are power distribution accuracy, energy distribution balance, power response time and inter-group voltage balance adjustment time. , , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0116] According to an embodiment of the present invention, the obtaining a fault handling capability evaluation index according to the fault detection data processing includes:

[0117] A fault handling capability evaluation index is obtained according to the fault locating time, fault recovery time and fault detection accuracy.

[0118] It should be noted that the fault handling capability evaluation index is obtained according to the fault location time, fault recovery time and fault detection accuracy;

[0119] The calculation formula of the fault handling capability evaluation index is:

[0120] ;

[0121] in, is the fault handling capability evaluation index, , and They are fault detection accuracy, fault location time and fault recovery time, respectively. , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0122] According to an embodiment of the present invention, the step of obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data includes:

[0123] The battery pack balancing performance evaluation index is obtained according to the state of charge difference, capacity difference and temperature difference.

[0124] It should be noted that the battery pack balancing performance evaluation index is obtained according to the state of charge difference, capacity difference and temperature difference;

[0125] The calculation formula of the battery pack balancing performance evaluation index is:

[0126] ;

[0127] in, is the battery pack balancing performance evaluation index, , and They are respectively the state of charge difference, capacity difference and temperature difference, , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0128] According to an embodiment of the present invention, the process of obtaining the non-communication autonomous management capability evaluation index according to the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and performing a test qualification determination includes:

[0129] Inputting the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index into a preset autonomous management capability evaluation model to obtain a non-communication autonomous management capability evaluation index;

[0130] Perform performance tests on energy storage batteries in a communication state and obtain an autonomous management capability evaluation index;

[0131] The non-communication autonomous management capability evaluation index is compared with the autonomous management capability evaluation index. If the comparison result does not meet the preset comparison result requirement, a test failure determination is made.

[0132] It should be noted that the energy storage battery is subjected to the same performance test in the communication state and the non-communication state, and the autonomous management capability evaluation index in the communication state is obtained and compared with the autonomous management capability evaluation index without communication. If the comparison result shows that there is a large difference between the two, it means that the current energy storage battery has poor autonomous management capability in the non-communication state and needs to be adjusted.

[0133] The calculation formula of the non-communication autonomous management capability evaluation model is:

[0134] ;

[0135] in, The index of autonomous management capability without communication is is the charge and discharge performance evaluation index, is the collaborative response performance evaluation index, is the fault handling capability evaluation index, is the battery pack balancing performance evaluation index, , , and They are respectively preset characteristic coefficients (which can be obtained through the preset battery management system intelligent monitoring platform).

[0136] A third aspect of the present invention provides a readable storage medium, in which a program for the method for autonomous management of an energy storage battery without communication is stored. When the program for the method for autonomous management of an energy storage battery without communication is executed by a processor, the steps of the method for autonomous management of an energy storage battery without communication as described in any one of the above items are implemented.

[0137] The present invention discloses a method, system and medium for autonomous management of energy storage batteries without communication, which quantitatively evaluate the charging and discharging control effect of energy storage batteries, the collaborative working ability between multiple battery packs, the balancing performance within the battery pack and the rapid fault handling ability in a state without communication, and is helpful to improve the operating stability, reliability and durability of the energy storage battery system in an environment with communication failure or no communication.

[0138] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as: multiple units or components can be combined, or can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, and the indirect coupling or communication connection of the devices or units can be electrical, mechanical or other forms.

[0139] The units described above as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units; they may be located in one place or distributed on multiple network units; some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0140] In addition, all functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as a unit, or two or more units may be integrated into one unit; the above-mentioned integrated units may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0141] Those skilled in the art can understand that: all or part of the steps of implementing the above method embodiments can be completed by hardware related to program instructions, the aforementioned program can be stored in a readable storage medium, and when the program is executed, it executes the steps of the above method embodiments; and the aforementioned storage medium includes: mobile storage devices, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), disks or optical disks, and other media that can store program codes.

[0142] Alternatively, if the above-mentioned integrated unit of the present invention is implemented in the form of a software function module and sold or used as an independent product, it can also be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present invention can be essentially or partly reflected in the form of a software product that contributes to the prior art. The software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the methods described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as mobile storage devices, ROM, RAM, magnetic disks or optical disks.

Claims

1. A method for autonomous management of energy storage batteries without communication, characterized in that: The following steps are involved: Perform performance tests on energy storage batteries without communication to obtain performance test data, including charge and discharge control test data, multi-battery group coordinated response test data, battery group balanced performance test data, response time data and fault detection data; The charge and discharge control detection data includes voltage control deviation, capacity retention rate and capacity decay rate, and the multi-battery group coordinated response detection data includes power distribution accuracy and energy distribution balance; The battery pack balancing performance detection data includes a state of charge difference, a capacity difference and a temperature difference; The response time data includes charge and discharge instruction response time, power response time, and inter-group voltage balance adjustment time; the fault detection data includes fault location time, fault recovery time, and fault detection accuracy; Obtaining a charge and discharge performance evaluation index according to the charge and discharge control detection data and the response time data; Obtaining a collaborative response performance evaluation index according to the multi-battery group collaborative response detection data and the response time data; Obtaining a fault handling capability evaluation index according to the fault detection data processing; Obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data processing; The non-communication autonomous management capability evaluation index is obtained according to the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and the test qualification is determined.

2. The energy storage battery non-communication autonomous management method according to claim 1 is characterized in that: The step of obtaining a charge and discharge performance evaluation index according to the charge and discharge control detection data and the response time data includes: A charge and discharge performance evaluation index is obtained according to the voltage control deviation, capacity retention rate, capacity decay rate and the charge and discharge instruction response time.

3. The energy storage battery non-communication autonomous management method according to claim 2 is characterized in that: The step of obtaining a coordinated response performance evaluation index according to the coordinated response detection data of the multiple battery packs and the response time data includes: A coordinated response performance evaluation index is obtained according to the power distribution accuracy, energy distribution balance, power response time, and inter-group voltage balance adjustment time.

4. The energy storage battery non-communication autonomous management method according to claim 3 is characterized in that: The obtaining of a fault handling capability evaluation index according to the fault detection data processing includes: A fault handling capability evaluation index is obtained according to the fault locating time, fault recovery time and fault detection accuracy.

5. The energy storage battery non-communication autonomous management method according to claim 4 is characterized in that: The step of obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data processing includes: The battery pack balancing performance evaluation index is obtained according to the state of charge difference, capacity difference and temperature difference.

6. The energy storage battery non-communication autonomous management method according to claim 5 is characterized in that: The step of obtaining the non-communication autonomous management capability evaluation index according to the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and performing a test qualification determination includes: Inputting the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index into a preset autonomous management capability evaluation model to obtain a non-communication autonomous management capability evaluation index; Perform performance tests on energy storage batteries in a communication state and obtain an autonomous management capability evaluation index; The non-communication autonomous management capability evaluation index is compared with the autonomous management capability evaluation index. If the comparison result does not meet the preset comparison result requirement, a test failure determination is made.

7. An energy storage battery non-communication autonomous management system, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a program of the method for autonomous management of energy storage batteries without communication, and when the program of the method for autonomous management of energy storage batteries without communication is executed by the processor, the following steps are implemented: Perform performance tests on energy storage batteries without communication to obtain performance test data, including charge and discharge control test data, multi-battery group coordinated response test data, battery group balanced performance test data, response time data and fault detection data; The charge and discharge control detection data includes voltage control deviation, capacity retention rate and capacity decay rate, and the multi-battery group coordinated response detection data includes power distribution accuracy and energy distribution balance; The battery pack balancing performance detection data includes a state of charge difference, a capacity difference and a temperature difference; The response time data includes charge and discharge instruction response time, power response time, and inter-group voltage balance adjustment time; the fault detection data includes fault location time, fault recovery time, and fault detection accuracy; Obtaining a charge and discharge performance evaluation index according to the charge and discharge control detection data and the response time data; Obtaining a collaborative response performance evaluation index according to the multi-battery group collaborative response detection data and the response time data; Obtaining a fault handling capability evaluation index according to the fault detection data processing; Obtaining a battery pack balancing performance evaluation index according to the battery pack balancing performance detection data processing; The non-communication autonomous management capability evaluation index is obtained according to the charge and discharge performance evaluation index, the coordinated response performance evaluation index, the fault handling capability evaluation index and the battery pack balancing performance evaluation index, and the test qualification is determined.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores an energy storage battery non-communication autonomous management program, and when the energy storage battery non-communication autonomous management program is executed by the processor, the steps of the energy storage battery non-communication autonomous management method according to any one of claims 1 to 6 are implemented.

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