A condition monitoring and management platform for large-scale battery arrays

Abstract

The present invention discloses a state monitoring management platform for a large-scale battery array, relates to the field of battery arrays, solves the problem that the current method for judging abnormal batteries in a battery array is relatively single, comprises an initial inspection and analysis module, a battery analysis module, a calculation module and a comprehensive allocation module, wherein the initial inspection and analysis module is used for performing an initial analysis on the state of each unit battery corresponding to the battery array, the calculation module is used for calculating the number of required unit batteries corresponding to the power supply task according to the power supply task, and sending the required number of unit batteries to the comprehensive allocation module, the battery analysis module is used for analyzing the conditions of unit batteries of different initial inspection levels in the battery array, and the comprehensive allocation module is used for allocating power to the corresponding unit batteries according to the power supply task, the present invention realizes accurate judgment of abnormal unit batteries in the battery array, and also realizes intelligent allocation of power supply tasks according to the performance of the unit batteries.

Description

Technical Field

[0001] The present invention belongs to the field of battery arrays, and relates to battery monitoring and management technology, in particular to a state monitoring and management platform for large-scale battery arrays. Background Art

[0002] A battery array is a larger battery assembly consisting of multiple cells connected in series or in parallel. Its role in the energy storage system is to provide higher voltage and charge capacity. Battery arrays are usually composed of cells with matching battery parameters and have a higher degree of integration and better packaging performance. Therefore, the maintenance of the cells requires higher technical thresholds and costs.

[0003] However, at present, in the monitoring and management of battery arrays, the way to judge abnormal batteries in the battery array is relatively single. In most cases, only when the unit battery is completely damaged or unusable, the user can know that the corresponding unit battery is in an abnormal state. When the performance of the unit battery is low but not completely damaged, the traditional method cannot detect it in time, resulting in the failure to meet the power supply demand when power is supplied;

[0004] To this end, we propose a condition monitoring management platform for large-scale battery arrays. Summary of the invention

[0005] The purpose of the present invention is to propose a status monitoring and management platform for large-scale battery arrays to solve the problems raised in the above background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A state monitoring and management platform for a large-scale battery array, comprising a first acquisition module, a second acquisition module, a preliminary inspection and analysis module, a battery analysis module, a calculation module, a comprehensive allocation module and a user terminal;

[0008] The first acquisition module is used to collect the full-state discharge data of each unit battery in the battery array and send it to the initial inspection and analysis module;

[0009] The second acquisition module is used to collect the battery measured data of the corresponding number of groups of unit batteries at different initial inspection levels in the battery array, and send the battery measured data of the corresponding number of groups of unit batteries at different initial inspection levels to the battery analysis module;

[0010] The initial inspection and analysis module is used to perform an initial analysis on the state of each unit cell of the battery array. If a normal signal corresponding to the unit cell is obtained through analysis, the initial inspection and analysis module sends the normal signal to the comprehensive allocation module. If an abnormal signal corresponding to the unit cell is obtained through analysis, the initial inspection and analysis module sends the abnormal signal to the user terminal. If a preliminary inspection level of the unit cell is obtained through analysis, the initial inspection and analysis module sends the preliminary inspection level corresponding to the unit cell to the battery analysis module.

[0011] The calculation module is used to calculate the number of required unit batteries corresponding to the power supply task according to the power supply task, and send the number of required unit batteries to the comprehensive allocation module;

[0012] The battery analysis module is used to analyze the conditions of the unit cells of different initial inspection levels in the battery array. If the analysis obtains an abnormal signal corresponding to the unit cell, the battery analysis module sends the abnormal signal to the user terminal. If the analysis obtains a primary secondary selection signal or a secondary secondary selection signal corresponding to the unit cell, the battery analysis module sends the primary secondary selection signal or the secondary secondary selection signal to the comprehensive allocation module.

[0013] The comprehensive allocation module is used to allocate corresponding unit batteries to supply power or generate prompt signals according to the power supply task. If a prompt signal is generated, the comprehensive allocation module sends the prompt signal to the user terminal.

[0014] Furthermore, the full-state discharge data includes the detected capacity, full-charge voltage, full-charge current and discharge duration of the unit battery in the fully-charged state;

[0015] The measured battery data includes the maximum voltage and minimum voltage during the unit battery charge and discharge test.

[0016] Furthermore, different quantity groups are set for unit batteries of different initial inspection levels, specifically:

[0017] First-level initial inspection level unit battery, the number of groups is X1 group;

[0018] The number of secondary initial inspection level unit batteries is X2 groups; among which, 2<X1<X2.

[0019] Furthermore, the analysis process of the initial inspection analysis module is as follows:

[0020] Obtaining full-state discharge data of each unit battery in the battery array, and obtaining the detection capacity, full-charge voltage, full-charge current and discharge time corresponding to each unit battery;

[0021] Calculate the capacity of the battery cell;

[0022] Compare the detected capacity of the unit battery with the calculated capacity;

[0023] If the detected capacitance is greater than or equal to the calculated capacitance, a normal signal is generated;

[0024] If the detected capacity is less than the calculated capacity, the battery capacity ratio corresponding to the unit battery is obtained by dividing the detected capacity by the calculated capacity. If the battery capacity ratio is greater than the first threshold, the initial inspection level of the corresponding unit battery is recorded as the first-level initial inspection level. If the battery capacity ratio is less than the first threshold but greater than or equal to the second threshold, the initial inspection level of the corresponding unit battery is recorded as the second-level initial inspection level. If the battery capacity ratio is less than the second threshold, an abnormal signal is generated; wherein, the first threshold is greater than the second threshold, and the performance of the unit battery corresponding to the first-level initial inspection level is better than the performance of the unit battery corresponding to the second-level initial inspection level.

[0025] Furthermore, the calculation process of the calculation module is specifically as follows:

[0026] Obtain the total power required in the power supply task;

[0027] The number of unit batteries required for the corresponding power supply task is obtained by dividing the total power demand by the rated capacity of the unit battery.

[0028] Furthermore, the analysis process of the battery analysis module is as follows:

[0029] Obtain the initial inspection level of the unit cells in the battery array, and then obtain the battery measured data of the unit cells corresponding to the first-level initial inspection level and the second-level initial inspection level, and obtain the maximum voltage value and the minimum voltage value of the unit cells in each group of charge and discharge tests;

[0030] If the unit battery is of the first-level initial inspection level, the maximum voltage value variance corresponding to each unit battery is calculated by the formula;

[0031] Then the battery excellent value of the unit battery corresponding to the first-level initial inspection level is calculated through the formula;

[0032] Compare the battery excellent value of the unit battery corresponding to the first-level initial inspection level with the battery excellent threshold value;

[0033] If the battery quality value is less than the battery quality threshold, an abnormal signal is generated;

[0034] If the battery quality value of the unit battery is greater than or equal to the battery quality threshold, a first-level secondary selection signal is generated.

[0035] Furthermore, the analysis process of the battery analysis module also includes:

[0036] If the unit battery is of the secondary initial inspection level, calculate the maximum voltage value variance and the minimum voltage value variance corresponding to the unit battery respectively;

[0037] Then, the minimum voltage value variance corresponding to the unit battery and the maximum voltage value variance corresponding to the unit battery are added and averaged to obtain the comprehensive mean square error of the unit battery;

[0038] If the comprehensive mean square error is greater than the variance threshold, an abnormal signal is generated;

[0039] If the comprehensive mean square error is less than or equal to the variance threshold, the battery excellent value of the unit battery corresponding to the secondary initial inspection level is calculated;

[0040] Compare the battery excellent value of the unit battery corresponding to the secondary initial inspection level with the battery excellent threshold value;

[0041] If the battery quality value is less than the battery quality threshold, an abnormal signal is generated;

[0042] If the battery quality value of the unit cell is greater than or equal to the battery quality threshold, a secondary selection signal is generated.

[0043] Furthermore, the formula for the maximum voltage value variance corresponding to the first-level initial inspection level unit battery is specifically:

[0044] Wherein DDYp1 is the average of the maximum voltage values ​​of the corresponding X1 group, that is, DDYp1 = (DDY1 + DDY2 + DDY3 + ... + DDYm) / X1, DDYn is the maximum voltage value DDYn of the unit cell in each group of charge and discharge tests, n is the number of each group of charge and discharge tests, n = 1, 2, ..., m, m is the upper limit value;

[0045] The maximum voltage value variance corresponding to the secondary initial inspection level unit battery is specifically:

[0046] Wherein DDYn is the maximum voltage value of the unit cell in each group of charge and discharge tests, DDYp2 is the average of the maximum voltage values ​​of the X2 group, DDYp2 = (DDY1 + DDY2 + DDY3 + ... + DDYX2) / X2;

[0047] The minimum voltage value variance corresponding to the secondary initial inspection level unit battery is specifically:

[0048] Wherein XDYn is the minimum voltage value of the unit cell in each group of charge and discharge tests, XDYp2 is the average of the minimum voltage values ​​of group X2, XDYp2 = (XDY1 + XDY2 + XDY3 + ... + XDYX2) / X2, XDYn is the minimum voltage value of the unit cell in each group of charge and discharge tests.

[0049] Furthermore, the allocation process of the comprehensive allocation module is as follows:

[0050] Obtaining normal signals, primary secondary selected signals and secondary secondary selected signals and counting the number of corresponding unit batteries;

[0051] If the number of unit cells corresponding to the normal signal is greater than or equal to the number of required unit cells corresponding to the power supply task, then the corresponding number of unit cells are selected to supply power to the address pointed to by the power supply task;

[0052] If the number of unit cells corresponding to normal signals is less than or equal to the number of unit cells required for the power supply task, and the sum of the number of unit cells corresponding to normal signals and the number of unit cells corresponding to the first-level secondary selected signals is greater than or equal to the number of unit cells required for the power supply task, then select the unit cells corresponding to all normal signals, and then select the unit cells corresponding to the first-level secondary selected signals;

[0053] If the sum of the number of unit cells corresponding to normal signals and the number of unit cells corresponding to the first-level secondary-selected signals is less than the number of unit cells required for the power supply task, and the sum of the number of unit cells corresponding to normal signals, the number of unit cells corresponding to the first-level secondary-selected signals, and the number of unit cells corresponding to the second-level secondary-selected signals is greater than or equal to the number of unit cells required for the power supply task, then select the unit cells corresponding to all normal signals, then select the unit cells corresponding to the first-level secondary-selected signals, and finally select the unit cells corresponding to the second-level secondary-selected signals;

[0054] If the sum of the number of unit cells corresponding to the normal signal, the number of unit cells corresponding to the first-level secondary selection signal, and the number of unit cells corresponding to the second-level secondary selection signal is less than the required number of unit cells corresponding to the power supply task, a prompt signal is generated.

[0055] Furthermore, the user terminal is used to receive a prompt signal and an abnormal signal. If it is an abnormal signal, the user is notified to replace the unit battery corresponding to the abnormal signal. If it is a prompt signal, the user is notified that the available unit batteries in the battery array are insufficient.

[0056] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0057] The present invention firstly uses the initial inspection and analysis module to perform an initial analysis on the status of each unit battery in the battery array. If a normal signal is obtained through the analysis, it is sent to the comprehensive allocation module. If an abnormal signal is generated through the analysis, it is sent to the user terminal. If the initial inspection level of the unit battery is obtained through the analysis, it is sent to the battery analysis module. The battery analysis module analyzes the status of unit batteries of different initial inspection levels in the battery array. If an abnormal signal is generated through the analysis, it is sent to the user terminal. If a primary secondary selection signal or a secondary secondary selection signal corresponding to the unit battery is obtained through the analysis, it is sent to the comprehensive allocation module. At the same time, the calculation module calculates the number of required unit batteries corresponding to the power supply task according to the power supply task, and sends the required number of unit batteries to the comprehensive allocation module. The comprehensive allocation module allocates the corresponding unit batteries for power supply according to the power supply task. The present invention realizes accurate judgment of abnormal unit batteries in the battery array, and also realizes intelligent allocation of power supply tasks according to the performance of the unit batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0059] Figure 1 It is the overall system block diagram of the present invention.

[0060] Figure 2 The figure is a flow chart of the method of the present invention. DETAILED DESCRIPTION

[0061] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than 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.

[0062] Example 1

[0063] See also Figure 1 As shown, the technical solution provided by the present invention is: a state monitoring management platform for a large-scale battery array, including a first acquisition module, a second acquisition module, a preliminary inspection and analysis module, a battery analysis module, a calculation module, a comprehensive allocation module and a user terminal;

[0064] The battery array is composed of a plurality of unit batteries, which are connected in series or in parallel. When the battery array is used, the battery array receives a power supply task, and then selects a certain number of unit batteries to realize power supply according to the power supply task;

[0065] The first acquisition module is used to collect the full-state discharge data of each unit battery in the battery array and send it to the initial inspection and analysis module, wherein the full-state discharge data specifically includes the detection capacity, full-charge voltage, full-charge current and discharge duration of each unit battery in the full-charge state;

[0066] The initial inspection and analysis module is used to perform initial analysis on the status of each unit battery in the battery array. The specific analysis process is as follows:

[0067] Obtain the full-state discharge data of each unit battery in the battery array, and obtain the detection capacity, full-charge voltage MDY, full-charge current MDL and discharge time FDS corresponding to each unit battery;

[0068] The calculated capacity of the unit battery is calculated by the formula, which is as follows:

[0069] SDR = MDY × MDL × FDS;

[0070] The detected capacity of the unit battery is compared with the calculated capacity, and if the detected capacity is greater than or equal to the calculated capacity, a normal signal is generated;

[0071] If the detected capacity is less than the calculated capacity, the battery capacity ratio corresponding to the unit battery is obtained by dividing the detected capacity by the calculated capacity;

[0072] If the battery capacity ratio is greater than the first threshold, the initial inspection level of the corresponding unit battery is recorded as the first initial inspection level;

[0073] If the battery capacity ratio is less than the first threshold and greater than or equal to the second threshold, the initial inspection level of the corresponding unit battery is recorded as the second initial inspection level, wherein the first threshold is greater than the second threshold, and the performance of the unit battery corresponding to the first initial inspection level is better than the performance of the unit battery corresponding to the second initial inspection level;

[0074] If the battery capacity ratio is less than the second threshold, an abnormal signal is generated to identify the corresponding unit battery as an abnormal battery;

[0075] If the analysis obtains a normal signal corresponding to the unit battery, the initial inspection analysis module sends the normal signal to the comprehensive allocation module; if the analysis obtains an abnormal signal corresponding to the unit battery, the initial inspection analysis module sends the abnormal signal to the user terminal; if the analysis obtains the initial inspection level of the unit battery, the initial inspection analysis module sends the initial inspection level corresponding to the unit battery to the battery analysis module;

[0076] The calculation module is used to calculate the number of required unit batteries corresponding to the power supply task according to the power supply task, and send the required number of unit batteries to the comprehensive allocation module, wherein the power supply task is specifically the total power required to supply power to various urban facilities or buildings. The number of required unit batteries corresponding to the power supply task can be obtained by dividing the total power required by the rated capacity of the unit battery during specific calculation;

[0077] The second acquisition module is used to collect the battery measured data corresponding to the number of groups of unit batteries at different preliminary inspection levels in the battery array, and send the battery measured data corresponding to the number of groups of unit batteries at different preliminary inspection levels to the battery analysis module; wherein the battery measured data is specifically the maximum voltage value and the minimum voltage value in the charge and discharge test of the unit battery, and the battery measured data has different number groups for unit batteries at different preliminary inspection levels, for the first-level preliminary inspection level unit batteries, the number group is X1 group, for the second-level preliminary inspection level unit batteries, the number group is X2 group, 2<X1<X2;

[0078] The battery analysis module is used to analyze the conditions of the unit batteries of different initial inspection levels in the battery array. The analysis process is as follows:

[0079] Obtain the initial inspection level of the unit cells in the battery array, and then obtain the battery measured data of the unit cells corresponding to the first-level initial inspection level and the second-level initial inspection level, and obtain the maximum voltage value DDYn and the minimum voltage value XDYn of the unit cells in each group of charge and discharge tests, where n is the number of each group of charge and discharge tests, n=1, 2, ..., m, and m is the upper limit value, the first-level initial inspection level unit cell m=X1, and the second-level initial inspection level unit cell, m=X2;

[0080] For the first-level initial inspection level unit battery, the maximum voltage value variance FCn corresponding to each unit battery is calculated by the formula, and the specific formula is as follows:

[0081] Where DDYp1 is the average of the maximum voltage values ​​of the corresponding X1 group, that is, DDYp1 = (DDY1 + DDY2 + DDY3 + ... + DDYm) / X1;

[0082] Then the battery excellent value YXZn of the unit battery corresponding to the first-level initial inspection level is calculated by the formula, and the specific formula is:

[0083]

[0084] The battery excellent value of the unit battery corresponding to the first-level initial inspection level is compared with the battery excellent threshold value. If the battery excellent value is less than the battery excellent threshold value, an abnormal signal is generated, and the corresponding unit battery is identified as an abnormal battery;

[0085] If the battery quality value of the unit battery is greater than or equal to the battery quality threshold, a first-level secondary selection signal is generated;

[0086] For the secondary initial inspection level unit battery, the maximum voltage value variance DFCn and the minimum voltage value variance XFCn corresponding to the unit battery are calculated by the formula, and the specific formula is as follows:

[0087]

[0088] Wherein, DDYp2 is the average of the maximum voltage value of group X2, and XDYp2 is the average of the minimum voltage value of group X2, that is, DDYp2 = (DDY1 + DDY2 + DDY3 + ... + DDYX2) / X2, XDYp2 = (XDY1 + XDY2 + XDY3 + ... + XDYX2) / X2;

[0089] Then, the minimum voltage value variance corresponding to the unit battery and the maximum voltage value variance corresponding to the unit battery are added and averaged to obtain the comprehensive mean square error JFC of the unit battery;

[0090] If the comprehensive mean square error is greater than the variance threshold, an abnormal signal is generated;

[0091] If the comprehensive mean square error is less than or equal to the variance threshold, the battery excellent value EYXZn of the unit battery corresponding to the secondary initial inspection level is calculated by the formula. The specific formula is as follows:

[0092]

[0093] The battery excellent value of the unit battery corresponding to the secondary initial inspection level is compared with the battery excellent threshold value. If the battery excellent value is less than the battery excellent threshold value, an abnormal signal is generated and the corresponding unit battery is identified as an abnormal battery;

[0094] If the battery quality value of the unit battery is greater than or equal to the battery quality threshold, a secondary selection signal is generated;

[0095] If the analysis obtains an abnormal signal corresponding to the unit battery, the battery analysis module sends the abnormal signal to the user terminal; if the analysis obtains a primary secondary selection signal or a secondary secondary selection signal corresponding to the unit battery, the battery analysis module sends the primary secondary selection signal or the secondary secondary selection signal to the comprehensive allocation module;

[0096] The comprehensive allocation module is used to allocate corresponding unit batteries for power supply according to the power supply task, and the allocation process is as follows:

[0097] Get the number of demand unit batteries corresponding to the power supply task;

[0098] Obtaining normal signals, primary secondary selected signals and secondary secondary selected signals and counting the number of corresponding unit batteries;

[0099] If the number of unit cells corresponding to the normal signal is greater than or equal to the number of required unit cells corresponding to the power supply task, then the corresponding number of unit cells are selected to supply power to the address pointed to by the power supply task;

[0100] If the number of unit cells corresponding to normal signals is less than or equal to the number of unit cells required for the power supply task, and the sum of the number of unit cells corresponding to normal signals and the number of unit cells corresponding to the first-level secondary selected signals is greater than or equal to the number of unit cells required for the power supply task, then select the unit cells corresponding to all normal signals, and then select the unit cells corresponding to the first-level secondary selected signals;

[0101] If the sum of the number of unit cells corresponding to normal signals and the number of unit cells corresponding to the first-level secondary-selected signals is less than the number of unit cells required for the power supply task, and the sum of the number of unit cells corresponding to normal signals, the number of unit cells corresponding to the first-level secondary-selected signals, and the number of unit cells corresponding to the second-level secondary-selected signals is greater than or equal to the number of unit cells required for the power supply task, then select the unit cells corresponding to all normal signals, then select the unit cells corresponding to the first-level secondary-selected signals, and finally select the unit cells corresponding to the second-level secondary-selected signals;

[0102] If the sum of the number of unit cells corresponding to the normal signal, the number of unit cells corresponding to the first-level secondary-selected signal, and the number of unit cells corresponding to the second-level secondary-selected signal is less than the required number of unit cells corresponding to the power supply task, a prompt signal is generated to prompt the user that the available unit cells in the battery array are insufficient;

[0103] The integrated allocation module sends a prompt signal to the user terminal;

[0104] The user terminal is used to receive the prompt signal and the abnormal signal. The user determines the status of the battery array through the prompt signal or the abnormal signal, and replaces the unit battery corresponding to the abnormal signal;

[0105] In this application, if corresponding calculation formulas appear, the above calculation formulas are all dimensionless and take their numerical calculations. The weight coefficients, proportional coefficients and other coefficients in the formulas are set to a result value obtained by quantifying each parameter. The size of the weight coefficient and the proportional coefficient can be determined as long as it does not affect the proportional relationship between the parameter and the result value.

[0106] Example 2

[0107] Based on another concept of the same invention, a state monitoring and management method for a large-scale battery array is now proposed, the method comprising the following steps:

[0108] Step S101, a first acquisition module acquires full-state discharge data of each unit battery in a battery array and sends the data to a preliminary inspection and analysis module;

[0109] Step S102, the initial inspection and analysis module performs an initial analysis on the state of each unit cell of the battery array. If the analysis obtains a normal signal corresponding to the unit cell, the initial inspection and analysis module sends the normal signal to the comprehensive allocation module. If the analysis obtains an abnormal signal corresponding to the unit cell, the initial inspection and analysis module sends the abnormal signal to the user terminal. If the analysis obtains the initial inspection level of the unit cell, the initial inspection and analysis module sends the initial inspection level corresponding to the unit cell to the battery analysis module.

[0110] Step S103, the second acquisition module acquires the battery measured data of the corresponding number of groups of unit batteries at different initial inspection levels in the battery array, and sends the battery measured data of the corresponding number of groups of unit batteries at different initial inspection levels to the battery analysis module;

[0111] Step S104, the calculation module calculates the number of required unit batteries corresponding to the power supply task according to the power supply task, and sends the number of required unit batteries to the comprehensive allocation module;

[0112] Step S105, the battery analysis module analyzes the conditions of the unit cells of different initial inspection levels in the battery array. If the analysis obtains an abnormal signal corresponding to the unit cell, the battery analysis module sends the abnormal signal to the user terminal. If the analysis obtains a primary secondary selection signal or a secondary secondary selection signal corresponding to the unit cell, the battery analysis module sends the primary secondary selection signal or the secondary secondary selection signal to the comprehensive allocation module.

[0113] Step S106, the integrated allocation module allocates the corresponding unit battery to supply power or generate a prompt signal according to the power supply task. If a prompt signal is generated, the integrated allocation module sends the prompt signal to the user terminal. The user terminal receives the prompt signal and the abnormal signal, and the user responds according to the prompt signal or the abnormal signal.

[0114] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A status monitoring and management platform for large-scale battery arrays, characterized in that: It includes a first acquisition module, a second acquisition module, a preliminary inspection and analysis module, a battery analysis module, a calculation module, a comprehensive allocation module and a user terminal; The first acquisition module is used to collect the full-state discharge data of each unit cell in the battery array, and send the full-state discharge data to the initial inspection and analysis module; the initial inspection and analysis module is used to perform an initial analysis on the state of each unit cell corresponding to the battery array, and if the analysis obtains a normal signal corresponding to the unit cell, it is sent to the comprehensive allocation module; if the analysis obtains an abnormal signal corresponding to the unit cell, it is sent to the user terminal; if the analysis obtains the initial inspection level of the unit cell, it is sent to the battery analysis module; the calculation module is used to calculate the number of unit cells required for the power supply task according to the power supply task, and send the number of required unit cells to the comprehensive allocation module; The second acquisition module is used to collect the battery measured data of the corresponding number of groups of unit batteries at different initial inspection levels in the battery array, and send the battery measured data of the corresponding number of groups of unit batteries at different initial inspection levels to the battery analysis module; the battery analysis module is used to analyze the conditions of the unit batteries at different initial inspection levels in the battery array, and if the analysis obtains an abnormal signal corresponding to the unit battery, it is sent to the user terminal; if the analysis obtains a primary secondary selection signal or a secondary secondary selection signal corresponding to the unit battery, it is sent to the comprehensive allocation module; The comprehensive allocation module is used to allocate corresponding unit batteries for power supply according to the power supply task, and if a prompt signal is generated, it is sent to the user terminal.

2. A state monitoring management platform for large-scale battery arrays according to claim 1, characterized in that: The full-state discharge data includes the detected capacity, full-charge voltage, full-charge current and discharge time of the unit battery in the fully charged state; The measured battery data includes the maximum voltage and minimum voltage during the unit battery charge and discharge test.

3. A state monitoring management platform for large-scale battery arrays according to claim 2, characterized in that: Different quantity groups are set for cells of different initial inspection levels, specifically: First-level initial inspection level unit battery, the number of groups is X1 group; The number of secondary initial inspection level unit batteries is X2 groups; among which, 2<X1<X2.

4. A state monitoring management platform for large-scale battery arrays according to claim 2, characterized in that: The analysis process of the initial inspection analysis module is as follows: Obtaining full-state discharge data of each unit battery in the battery array, and obtaining the detection capacity, full-charge voltage, full-charge current and discharge time corresponding to each unit battery; Calculate the capacity of the battery cell; Compare the detected capacity of the unit battery with the calculated capacity; If the detected capacitance is greater than or equal to the calculated capacitance, a normal signal is generated; If the detected capacity is less than the calculated capacity, the battery capacity ratio corresponding to the unit battery is obtained by dividing the detected capacity by the calculated capacity. If the battery capacity ratio is greater than the first threshold, the initial inspection level of the corresponding unit battery is recorded as the first-level initial inspection level. If the battery capacity ratio is less than the first threshold but greater than or equal to the second threshold, the initial inspection level of the corresponding unit battery is recorded as the second-level initial inspection level. If the battery capacity ratio is less than the second threshold, an abnormal signal is generated; wherein, the first threshold is greater than the second threshold, and the performance of the unit battery corresponding to the first-level initial inspection level is better than the performance of the unit battery corresponding to the second-level initial inspection level.

5. A state monitoring and management platform for large-scale battery arrays according to claim 1, characterized in that: The calculation process of the calculation module is as follows: Obtain the total power required in the power supply task; The number of unit batteries required for the corresponding power supply task is obtained by dividing the total power required by the rated capacity of the unit battery.

6. A state monitoring management platform for large-scale battery arrays according to claim 1, characterized in that: The analysis process of the battery analysis module is as follows: Obtain the initial inspection level of the unit cells in the battery array, and then obtain the battery measured data of the unit cells corresponding to the first-level initial inspection level and the second-level initial inspection level, and obtain the maximum voltage value and the minimum voltage value of the unit cells in each group of charge and discharge tests; If the unit battery is of the first-level initial inspection level, the maximum voltage value variance corresponding to each unit battery is calculated; Then calculate the battery excellent value of the unit battery corresponding to the first-level initial inspection level; Compare the battery excellent value of the unit battery corresponding to the first-level initial inspection level with the battery excellent threshold value; If the battery quality value is less than the battery quality threshold, an abnormal signal is generated; If the battery quality value of the unit battery is greater than or equal to the battery quality threshold, a first-level secondary selection signal is generated.

7. A state monitoring management platform for large-scale battery arrays according to claim 6, characterized in that: The analysis process of the battery analysis module also includes: If the unit battery is of the secondary initial inspection level, calculate the maximum voltage value variance and the minimum voltage value variance corresponding to the unit battery respectively; Then, the minimum voltage value variance corresponding to the unit battery and the maximum voltage value variance corresponding to the unit battery are added and averaged to obtain the comprehensive mean square error of the unit battery; If the comprehensive mean square error is greater than the variance threshold, an abnormal signal is generated; If the comprehensive mean square error is less than or equal to the variance threshold, the battery excellent value of the unit battery corresponding to the secondary initial inspection level is calculated; Compare the battery excellent value of the unit battery corresponding to the secondary initial inspection level with the battery excellent threshold value; If the battery quality value is less than the battery quality threshold, an abnormal signal is generated; If the battery quality value of the unit cell is greater than or equal to the battery quality threshold, a secondary selection signal is generated.

8. A state monitoring management platform for large-scale battery arrays according to claim 7, characterized in that: The allocation process of the comprehensive allocation module is as follows: Obtaining normal signals, primary secondary selected signals and secondary secondary selected signals and counting the number of corresponding unit batteries; If the number of unit cells corresponding to the normal signal is greater than or equal to the number of required unit cells corresponding to the power supply task, then the corresponding number of unit cells are selected to supply power to the address pointed to by the power supply task; If the number of unit cells corresponding to normal signals is less than or equal to the number of unit cells required for the power supply task, and the sum of the number of unit cells corresponding to normal signals and the number of unit cells corresponding to the first-level secondary selected signals is greater than or equal to the number of unit cells required for the power supply task, then select the unit cells corresponding to all normal signals, and then select the unit cells corresponding to the first-level secondary selected signals; If the sum of the number of unit cells corresponding to normal signals and the number of unit cells corresponding to the first-level secondary-selected signals is less than the number of unit cells required for the power supply task, and the sum of the number of unit cells corresponding to normal signals, the number of unit cells corresponding to the first-level secondary-selected signals, and the number of unit cells corresponding to the second-level secondary-selected signals is greater than or equal to the number of unit cells required for the power supply task, then select the unit cells corresponding to all normal signals, then select the unit cells corresponding to the first-level secondary-selected signals, and finally select the unit cells corresponding to the second-level secondary-selected signals; If the sum of the number of unit cells corresponding to the normal signal, the number of unit cells corresponding to the first-level secondary selection signal, and the number of unit cells corresponding to the second-level secondary selection signal is less than the required number of unit cells corresponding to the power supply task, a prompt signal is generated.

9. A state monitoring and management platform for large-scale battery arrays according to claim 1, characterized in that: The user terminal is used to receive a prompt signal and an abnormal signal. If it is an abnormal signal, the user is notified to replace the unit battery corresponding to the abnormal signal. If it is a prompt signal, the user is notified that the available unit batteries in the battery array are insufficient.

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