CN116449235A - Method and system for processing test data of energy storage battery - Google Patents
Method and system for processing test data of energy storage battery Download PDFInfo
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- CN116449235A CN116449235A CN202310700666.7A CN202310700666A CN116449235A CN 116449235 A CN116449235 A CN 116449235A CN 202310700666 A CN202310700666 A CN 202310700666A CN 116449235 A CN116449235 A CN 116449235A
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- 238000012360 testing method Methods 0.000 title claims abstract description 430
- 238000004146 energy storage Methods 0.000 title claims abstract description 350
- 238000012545 processing Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 40
- 238000004458 analytical method Methods 0.000 claims abstract description 41
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 23
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims description 23
- 239000001257 hydrogen Substances 0.000 claims description 23
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 15
- 238000012216 screening Methods 0.000 claims description 13
- 230000000694 effects Effects 0.000 abstract description 7
- 230000007547 defect Effects 0.000 abstract description 4
- 238000003672 processing method Methods 0.000 abstract description 2
- 238000010248 power generation Methods 0.000 description 5
- 238000010998 test method Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4285—Testing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/367—Software therefor, e.g. for battery testing using modelling or look-up tables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention discloses an energy storage battery test data processing method and system, and relates to the technical field of energy storage batteries; by analyzing the operation effect of the energy storage battery in each high-temperature test group and each low-temperature test group and confirming the corresponding limit operation upper limit temperature and limit operation lower limit temperature of the energy storage battery, the defects existing in the prior art are overcome, automatic analysis of the test data of the energy storage battery is realized, the accuracy of the analysis result of the test data of the energy storage battery is improved, the workload of engineers is reduced, the efficiency and effect of data processing are improved, reference is provided for selection of the use scene of the follow-up energy storage battery, and the use safety of the energy storage battery is ensured.
Description
Technical Field
The invention relates to the technical field of energy storage batteries, in particular to a method and a system for processing test data of an energy storage battery.
Background
The solar power generation equipment and the power generated by the wind power generation equipment are often stored in the energy storage battery so as to ensure the stability of the power of the solar power generation equipment and the wind power generation equipment when the power is integrated into a power grid, the wind power generation equipment and the like are often installed outdoors, and the outdoor temperature has a certain influence on the operation of the energy storage battery, so that the high-temperature test and the low-temperature test are carried out through the energy storage battery, and it is very important to master the operation limit temperature of the energy storage battery.
The temperature test data of the energy storage battery in the prior art mainly comprise the voltage and the current of the charge and the discharge of the energy storage battery at different temperatures, and engineers process the temperature test data of the energy storage battery through appointed software so as to obtain the running temperature of the energy storage battery, so that the mode has at least the following problems:
1. the prior art only analyzes the operation temperature of the energy storage battery, does not confirm the accuracy of the operation temperature, cannot guarantee the accuracy of the limit operation temperature of the energy storage battery, thereby affecting the subsequent use and maintenance of the energy storage battery, and cannot guarantee the operation safety of the energy storage battery in a high-temperature environment.
2. The influence of high temperature and low temperature on the energy storage battery is different, different parameters are not selected according to different temperatures when temperature test data acquisition is carried out in the prior art, and then the operation effect of the energy storage battery at different temperatures cannot be accurately reflected, so that the authenticity of the operation limit temperature analysis result of the energy storage battery is influenced, meanwhile, effective reference cannot be provided for the selection of the use scene of the subsequent energy storage battery, and the working effect of the energy storage battery is influenced.
Disclosure of Invention
Aiming at the technical defects, the invention aims to provide an energy storage battery test data processing method and system.
In order to solve the technical problems, the invention adopts the following technical scheme: the invention provides a method and a system for processing test data of an energy storage battery in a first aspect, wherein the method comprises the following steps:
s1, acquiring basic standards of an energy storage battery: obtaining standard information corresponding to an energy storage battery to be tested, wherein the standard information comprises a standard running environment temperature interval and a charging time length under a standard charging voltage;
s2, high-temperature testing of the energy storage battery: setting each high-temperature test group based on the upper limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested, putting the energy storage battery to be tested into each high-temperature test group of the test bin, and performing high-temperature test, thereby collecting high-temperature test information corresponding to each high-temperature test group in the test bin, wherein the high-temperature test information comprises the temperature of the energy storage battery to be tested, the charging time of the energy storage battery to be tested, the apparent image of the energy storage battery to be tested, the carbon monoxide concentration and the hydrogen concentration in the test bin;
s3, high-temperature analysis of the energy storage battery: analyzing the operation coincidence index of the energy storage battery to be tested under each high-temperature test group based on the corresponding high-temperature test information in each high-temperature test group in the test bin, screening out the limit operation upper limit temperature corresponding to the energy storage battery to be tested, and judging whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
s4, low-temperature test of the energy storage battery: setting each low-temperature test group based on the lower limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested, putting the energy storage battery to be tested into each low-temperature test group of the test bin, and performing low-temperature test, thereby acquiring low-temperature test information corresponding to each low-temperature test group in the test bin, wherein the low-temperature test information comprises discharge duration and discharge voltage corresponding to each acquisition time point;
s5, low-temperature analysis of the energy storage battery: analyzing the operation conformity index of the energy storage battery to be tested under each low-temperature test group according to the low-temperature test information corresponding to each low-temperature test group in the test bin, screening out the limit operation lower limit temperature corresponding to the energy storage battery to be tested, and judging whether the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
s6, displaying a test result: and displaying whether the upper limit value and the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested are accurate or not, and displaying the corresponding limit operation upper limit temperature and limit operation lower limit temperature of the energy storage battery to be tested.
Preferably, a high temperature test is performed in said step S2, the specific test process is as follows: a1, taking an upper limit value of a standard operation environment temperature interval corresponding to the energy storage battery to be tested as a high-temperature reference value, setting each high-temperature test group according to a preset temperature difference, and sequentially and respectively placing each energy storage battery to be tested with the same specification and zero electric quantity into each high-temperature test group of a test bin;
a2, connecting the energy storage batteries to be tested in each high-temperature test group of the test bin to a switch of the energy storage battery to be tested corresponding to standard charging voltage, and charging the energy storage batteries to be tested in each high-temperature test group of the test bin after the switch is turned on;
a3, after the electric quantity of the energy storage battery to be tested in each high-temperature test group in the test bin is full, closing the switch to stop charging, collecting high-temperature test information corresponding to each high-temperature test group in the test bin, and ending the high-temperature test after the collection is completed.
Preferably, the operation compliance index of the energy storage battery to be tested under each high-temperature test group is analyzed, and the specific analysis process is as follows: according to the temperature and the charging time length of the energy storage battery to be tested corresponding to each high-temperature test group in the test bin, analyzing to obtain a first operation coincidence index corresponding to the energy storage battery to be tested under each high-temperature test group, and recording asWherein i represents the number corresponding to each high temperature test group, < >>；
Analyzing according to the apparent image of each high-temperature test group corresponding to the energy storage battery to be tested in the test bin, and the carbon monoxide concentration and the hydrogen concentration in the test bin to obtain the operation safety compliance index corresponding to the energy storage battery to be tested under each high-temperature test group, and marking as；
By calculation formulaObtaining the operation compliance index of the energy storage battery to be tested under each high-temperature test group>Wherein->、/>And respectively setting weight factors corresponding to the first operation compliance indexes and the operation safety compliance indexes.
Preferably, the specific calculation formula of the first operation compliance index corresponding to the energy storage battery to be tested under each high-temperature test group is as follows:wherein->、/>Respectively setting the temperature of the standard energy storage battery to be tested and the charging time length of the standard energy storage battery to be tested as well as +.>、/>Respectively representing the temperature and the charging time length of the energy storage battery to be tested corresponding to the ith high-temperature test group,/-for the energy storage battery to be tested>、/>Respectively setting weight factors corresponding to the temperature and the charging time of the energy storage battery to be tested.
Preferably, the analysis obtains the operation safety compliance index corresponding to the energy storage battery to be tested under each high-temperature test group, and the specific analysis process is as follows:
calculating to obtain the surface flatness coincidence coefficient corresponding to the energy storage battery to be tested and corresponding to each high-temperature test group based on the apparent image of the energy storage battery to be tested corresponding to each high-temperature test group in the test bin, and recording as；
By calculation formulaObtaining the corresponding operation safety compliance index ++of the energy storage battery to be tested under each high temperature test group>Wherein->、/>Respectively represent the concentration of carbon monoxide and hydrogen in the corresponding test bin of the ith high temperature test group,/->、/>Respectively representing the initial carbon monoxide concentration and the initial hydrogen concentration in the test bin,/->、/>、/>Respectively set weight factors corresponding to the surface flatness conforming coefficient, the carbon monoxide concentration and the hydrogen concentration.
Preferably, the screening selects the upper limit temperature of the limit operation corresponding to the energy storage battery to be tested, and simultaneously judges whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate, and the specific process is as follows:
comparing the operation compliance index of the energy storage battery to be tested under each high-temperature test group with a preset operation compliance index threshold, judging the temperature in the high-temperature test group as a safe temperature if the operation compliance index of the energy storage battery to be tested under a certain high-temperature test group is greater than or equal to the preset operation compliance index threshold, and marking the high-temperature test group as a safe high-temperature test group so as to screen each safe high-temperature test group;
sorting the operation coincidence indexes of the energy storage batteries to be tested in each safe high-temperature test group according to descending order, and taking the temperature in the first corresponding safe high-temperature test group ranked by the operation coincidence indexes as the corresponding limit operation upper limit temperature of the energy storage batteries to be tested;
and comparing the upper limit temperature of the standard operation environment temperature range of the energy storage battery to be tested with the upper limit value of the standard operation environment temperature range, if the upper limit temperature of the energy storage battery to be tested is the same as the upper limit value of the standard operation environment temperature range, judging that the upper limit value of the standard operation environment temperature range of the energy storage battery to be tested is accurate, otherwise, judging that the upper limit value of the standard operation environment temperature range of the energy storage battery to be tested is inaccurate.
Preferably, the low temperature test is performed in step S4, and the specific test procedure is as follows:
b1, taking the lower limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested as a low-temperature reference value, setting each low-temperature test group according to a set temperature difference, and sequentially and respectively placing all the energy storage batteries to be tested with the same specification and full electric quantity into each low-temperature test group of a test bin;
and B2, discharging each energy storage battery to be tested in each low-temperature test group of the test bin at a set discharging voltage, setting each collecting time point in the discharging process, collecting the discharging voltage corresponding to each collecting time point of the energy storage battery to be tested in each low-temperature test group of the test bin, collecting the discharging time length of each energy storage battery to be tested in each low-temperature test group of the test bin when the electric quantity of each energy storage battery to be tested in each low-temperature test group of the test bin is zero, and ending the low-temperature test.
Preferably, the operation compliance index of the energy storage battery to be tested under each low-temperature test group is analyzed, and the specific analysis process is as follows:
substituting the discharge time length of the energy storage battery to be tested in each low-temperature test group of the test bin and the discharge voltage corresponding to each acquisition time point into a calculation formulaObtaining the operation compliance index +.f of the energy storage battery to be tested under each low-temperature test group>Wherein->For a predetermined standard discharge period when the energy storage battery to be tested is discharged at a predetermined discharge voltage,/->Represents the discharge time length of the energy storage battery to be tested in the j-th low-temperature test group of the test bin,/->For a set discharge voltage +.>Indicating the discharge voltage corresponding to the t acquisition time point in the j-th low-temperature test group of the test bin, < ->、/>Respectively setting a weight factor corresponding to the discharge time length and the discharge voltage, wherein j represents the number corresponding to each low-temperature test group,>，/>numbers corresponding to each acquisition time point are indicated, < ->。
The present invention provides in a second aspect an energy storage battery test data processing system comprising:
the energy storage battery basic standard acquisition module is used for acquiring standard information corresponding to the energy storage battery to be tested.
The energy storage battery high-temperature test module is used for setting each high-temperature test group, placing the energy storage battery to be tested in each high-temperature test group of the test bin, and carrying out high-temperature test, so as to collect high-temperature test information corresponding to each high-temperature test group in the test bin;
the high-temperature analysis module of the energy storage battery is used for analyzing the operation coincidence index of the energy storage battery to be tested under each high-temperature test group based on the corresponding high-temperature test information in each high-temperature test group in the test bin, screening out the corresponding limit operation upper limit temperature of the energy storage battery to be tested, and judging whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
the low-temperature test module of the energy storage battery is used for setting each low-temperature test group, placing the energy storage battery to be tested in each low-temperature test group of the test bin, and performing low-temperature test, so as to acquire low-temperature test information corresponding to each low-temperature test group in the test bin, wherein the low-temperature test information comprises discharge duration and discharge voltage corresponding to each acquisition time point;
the low-temperature analysis module of the energy storage battery is used for analyzing the operation coincidence index of the energy storage battery to be tested under each low-temperature test group according to the low-temperature test information corresponding to each low-temperature test group in the test bin, screening out the limit operation lower limit temperature corresponding to the energy storage battery to be tested, and judging whether the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
the display terminal is used for displaying whether the upper limit value and the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested are accurate or not and displaying the corresponding limit operation upper limit temperature and limit operation lower limit temperature of the energy storage battery to be tested.
The invention has the beneficial effects that: 1. according to the method and the system for processing the test data of the energy storage battery, provided by the invention, the operation effect of the energy storage battery in each high-temperature test group and each low-temperature test group is analyzed, and the limit operation upper limit temperature and the limit operation lower limit temperature corresponding to the energy storage battery are confirmed, so that the defects in the prior art are overcome, the automatic analysis of the test data of the energy storage battery is realized, the accuracy of the analysis result of the test data of the energy storage battery is improved, the workload of engineers is reduced, the efficiency and the effect of data processing are improved, references are provided for the selection of the use scene of the follow-up energy storage battery, and the use safety of the energy storage battery is ensured.
2. According to the invention, in the high-temperature analysis of the energy storage battery, the apparent images of the energy storage battery in each high-temperature test group, and the carbon monoxide concentration and the hydrogen concentration in the test bin are analyzed, so that the safety of the energy storage battery in a high-temperature environment is greatly ensured, and the explosion of the energy storage battery in the high-temperature environment is prevented.
3. According to the invention, in the low-temperature analysis of the energy storage battery, the discharge voltage of the energy storage battery in each low-temperature test group is analyzed, so that the running stability of the energy storage battery in a low-temperature environment is effectively displayed, and meanwhile, the short circuit of the energy storage battery in the low-temperature environment is prevented.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of the steps of the method of the present invention.
FIG. 2 is a schematic diagram of the system structure of the present invention.
Description of the embodiments
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1, a method for processing test data of an energy storage battery includes the following steps: s1, acquiring basic standards of an energy storage battery: obtaining standard information corresponding to an energy storage battery to be tested, wherein the standard information comprises a standard running environment temperature interval and a charging time length under a standard charging voltage;
in the above description, standard information corresponding to the energy storage battery to be tested is obtained from the battery management center.
S2, high-temperature testing of the energy storage battery: setting each high-temperature test group based on the upper limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested, putting the energy storage battery to be tested into each high-temperature test group of the test bin, and performing high-temperature test, thereby collecting high-temperature test information corresponding to each high-temperature test group in the test bin, wherein the high-temperature test information comprises the temperature of the energy storage battery to be tested, the charging time of the energy storage battery to be tested, the apparent image of the energy storage battery to be tested, the carbon monoxide concentration and the hydrogen concentration in the test bin;
in an alternative embodiment, the high temperature test is performed in step S2, and the specific test procedure is as follows: a1, taking an upper limit value of a standard operation environment temperature interval corresponding to the energy storage battery to be tested as a high-temperature reference value, setting each high-temperature test group according to a preset temperature difference, and sequentially and respectively placing each energy storage battery to be tested with the same specification and zero electric quantity into each high-temperature test group of a test bin;
a2, connecting the energy storage batteries to be tested in each high-temperature test group of the test bin to a switch of the energy storage battery to be tested corresponding to standard charging voltage, and charging the energy storage batteries to be tested in each high-temperature test group of the test bin after the switch is turned on;
a3, after the electric quantity of the energy storage battery to be tested in each high-temperature test group in the test bin is full, closing the switch to stop charging, collecting high-temperature test information corresponding to each high-temperature test group in the test bin, and ending the high-temperature test after the collection is completed.
It should be noted that, install carbon monoxide sensor and hydrogen sensor above the test bin for gather carbon monoxide concentration and hydrogen concentration in each high temperature test group after closing the switch, on the other hand, carbon monoxide sensor and hydrogen sensor are awaited measuring energy storage battery charging in each high temperature test group, gather carbon monoxide concentration and hydrogen concentration in each high temperature test group in real time, if carbon monoxide concentration or hydrogen concentration are greater than preset carbon monoxide concentration threshold value or hydrogen concentration threshold value in the test bin in a certain high temperature test group, close the switch immediately, and start the alarm and carry out the suggestion.
The method is characterized in that a camera is arranged in a test bin, then the apparent images of the energy storage batteries to be tested corresponding to each high-temperature test group in the test bin are collected through the camera, a temperature sensor is arranged on the energy storage batteries to be tested, then the temperatures of the energy storage batteries to be tested corresponding to each high-temperature test group in the test bin are collected through the temperature sensor, and the charging time length of the energy storage batteries to be tested corresponding to each high-temperature test group in the test bin is collected through a timer.
S3, high-temperature analysis of the energy storage battery: analyzing the operation coincidence index of the energy storage battery to be tested under each high-temperature test group based on the corresponding high-temperature test information in each high-temperature test group in the test bin, screening out the limit operation upper limit temperature corresponding to the energy storage battery to be tested, and judging whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
in an alternative embodiment, the operation compliance index of the energy storage battery to be tested under each high temperature test group is analyzed, and the specific analysis process is as follows: according to the temperature and the charging time length of the energy storage battery to be tested corresponding to each high-temperature test group in the test bin, analyzing to obtain a first operation coincidence index corresponding to the energy storage battery to be tested under each high-temperature test group, and recording asWherein i represents the number corresponding to each high temperature test group, < >>；
Analyzing according to the apparent image of each high-temperature test group corresponding to the energy storage battery to be tested in the test bin, and the carbon monoxide concentration and the hydrogen concentration in the test bin to obtain the operation safety compliance index corresponding to the energy storage battery to be tested under each high-temperature test group, and marking as；
By calculation formulaObtaining the operation compliance index of the energy storage battery to be tested under each high-temperature test group>Wherein->、/>And respectively setting weight factors corresponding to the first operation compliance indexes and the operation safety compliance indexes.
In another alternative embodiment, the specific calculation formula of the first operation compliance index corresponding to the energy storage battery to be tested under each high-temperature test group is as follows:wherein->、/>Respectively setting the temperature of the standard energy storage battery to be tested and the charging time length of the standard energy storage battery to be tested as well as +.>、/>Respectively representing the temperature and the charging time length of the energy storage battery to be tested corresponding to the ith high-temperature test group,/-for the energy storage battery to be tested>、/>Respectively setting weight factors corresponding to the temperature and the charging time of the energy storage battery to be tested.
In yet another alternative embodiment, the operation safety compliance index corresponding to the energy storage battery to be tested under each high temperature test group is obtained by analysis, and the specific analysis process is as follows: calculating to obtain the surface flatness coincidence coefficient corresponding to the energy storage battery to be tested and corresponding to each high-temperature test group based on the apparent image of the energy storage battery to be tested corresponding to each high-temperature test group in the test bin, and recording as；
In the above, each acquisition point is arranged on the surface of the energy storage battery to be tested, and then the position of each high temperature test group corresponding to each acquisition point on the energy storage battery to be tested is obtained from the apparent image of each high temperature test group corresponding to the energy storage battery to be tested, and then the position coordinate of each high temperature test group corresponding to each acquisition point on the energy storage battery to be tested is obtained by guiding the position coordinate into a set three-dimensional coordinate system, and is recorded asWherein f represents the number corresponding to each acquisition point, < ->；
Meanwhile, acquiring images of the energy storage battery to be tested before testing, acquiring initial position coordinates corresponding to all acquisition points on the energy storage battery to be tested according to the mode, and marking as；
According to the calculation formulaObtaining the surface flatness coincidence coefficient corresponding to the energy storage battery to be tested and corresponding to each high-temperature test group>Wherein->、/>、/>And the weight factors correspond to the coordinate values of the X-axis, the Y-axis and the Z-axis of the set acquisition point respectively.
By calculation formulaObtaining the corresponding operation safety compliance index ++of the energy storage battery to be tested under each high temperature test group>Wherein->、/>Respectively represent the concentration of carbon monoxide and hydrogen in the corresponding test bin of the ith high temperature test group,/->、/>Respectively representing the initial carbon monoxide concentration and the initial hydrogen concentration in the test bin,/->、/>、/>Respectively set weight factors corresponding to the surface flatness conforming coefficient, the carbon monoxide concentration and the hydrogen concentration.
In still another alternative embodiment, the upper limit temperature of the limit operation corresponding to the energy storage battery to be tested is screened out, and meanwhile, whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate is judged, and the specific process is as follows: comparing the operation compliance index of the energy storage battery to be tested under each high-temperature test group with a preset operation compliance index threshold, judging the temperature in the high-temperature test group as a safe temperature if the operation compliance index of the energy storage battery to be tested under a certain high-temperature test group is greater than or equal to the preset operation compliance index threshold, and marking the high-temperature test group as a safe high-temperature test group so as to screen each safe high-temperature test group;
sorting the operation coincidence indexes of the energy storage batteries to be tested in each safe high-temperature test group according to descending order, and taking the temperature in the first corresponding safe high-temperature test group ranked by the operation coincidence indexes as the corresponding limit operation upper limit temperature of the energy storage batteries to be tested;
and comparing the upper limit temperature of the standard operation environment temperature range of the energy storage battery to be tested with the upper limit value of the standard operation environment temperature range, if the upper limit temperature of the energy storage battery to be tested is the same as the upper limit value of the standard operation environment temperature range, judging that the upper limit value of the standard operation environment temperature range of the energy storage battery to be tested is accurate, otherwise, judging that the upper limit value of the standard operation environment temperature range of the energy storage battery to be tested is inaccurate.
According to the invention, in the high-temperature analysis of the energy storage battery, the apparent images of the energy storage battery in each high-temperature test group, and the carbon monoxide concentration and the hydrogen concentration in the test bin are analyzed, so that the safety of the energy storage battery in a high-temperature environment is greatly ensured, and the explosion of the energy storage battery in the high-temperature environment is prevented.
S4, low-temperature test of the energy storage battery: setting each low-temperature test group based on the lower limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested, putting the energy storage battery to be tested into each low-temperature test group of the test bin, and performing low-temperature test, thereby acquiring low-temperature test information corresponding to each low-temperature test group in the test bin, wherein the low-temperature test information comprises discharge duration and discharge voltage corresponding to each acquisition time point;
in an alternative embodiment, the low temperature test is performed in step S4, and the specific test procedure is as follows: b1, taking the lower limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested as a low-temperature reference value, setting each low-temperature test group according to a set temperature difference, and sequentially and respectively placing all the energy storage batteries to be tested with the same specification and full electric quantity into each low-temperature test group of a test bin;
and B2, discharging each energy storage battery to be tested in each low-temperature test group of the test bin at a set discharging voltage, setting each collecting time point in the discharging process, collecting the discharging voltage corresponding to each collecting time point of the energy storage battery to be tested in each low-temperature test group of the test bin, collecting the discharging time length of each energy storage battery to be tested in each low-temperature test group of the test bin when the electric quantity of each energy storage battery to be tested in each low-temperature test group of the test bin is zero, and ending the low-temperature test.
The method is characterized in that the discharge time length of the energy storage battery to be tested in each low-temperature test group of the test bin is collected through a timer, and the discharge voltage corresponding to each collection time point of the energy storage battery to be tested in each low-temperature test group of the test bin is collected through a voltmeter.
S5, low-temperature analysis of the energy storage battery: analyzing the operation conformity index of the energy storage battery to be tested under each low-temperature test group according to the low-temperature test information corresponding to each low-temperature test group in the test bin, screening out the limit operation lower limit temperature corresponding to the energy storage battery to be tested, and judging whether the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
in an alternative embodiment, the operation compliance index of the energy storage battery to be tested under each low temperature test group is analyzed, and the specific analysis process is as follows:
substituting the discharge time length of the energy storage battery to be tested in each low-temperature test group of the test bin and the discharge voltage corresponding to each acquisition time point into calculationFormula (VI)Obtaining the operation compliance index +.f of the energy storage battery to be tested under each low-temperature test group>Wherein->For a predetermined standard discharge period when the energy storage battery to be tested is discharged at a predetermined discharge voltage,/->Represents the discharge time length of the energy storage battery to be tested in the j-th low-temperature test group of the test bin,/->For a set discharge voltage +.>Indicating the discharge voltage corresponding to the t acquisition time point in the j-th low-temperature test group of the test bin, < ->、/>Respectively setting a weight factor corresponding to the discharge time length and the discharge voltage, wherein j represents the number corresponding to each low-temperature test group,>，/>numbers corresponding to each acquisition time point are indicated, < ->。
In another alternative embodiment, the lower limit temperature of the limit operation corresponding to the energy storage battery to be tested is screened out, and meanwhile, whether the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not is judged, and the specific process is as follows:
comparing the operation compliance index of the energy storage battery to be tested under each low-temperature test group with a preset operation compliance index threshold, judging the temperature in the low-temperature test group as a safe temperature if the operation compliance index of the energy storage battery to be tested under a certain low-temperature test group is greater than or equal to the preset operation compliance index threshold, and marking the low-temperature test group as a safe low-temperature test group so as to screen out each safe low-temperature test group;
sorting the operation coincidence indexes of the energy storage batteries to be tested in each safe low-temperature test group according to descending order, and taking the temperature in the first corresponding safe low-temperature test group ranked by the operation coincidence indexes as the corresponding limit operation lower limit temperature of the energy storage batteries to be tested;
and comparing the lower limit temperature of the standard operation environment temperature range corresponding to the energy storage battery to be tested with the lower limit value of the standard operation environment temperature range, if the lower limit temperature of the standard operation environment temperature range corresponding to the energy storage battery to be tested is the same as the lower limit value of the standard operation environment temperature range, judging that the lower limit value of the standard operation environment temperature range of the energy storage battery to be tested is accurate, otherwise, judging that the lower limit value of the standard operation environment temperature range of the energy storage battery to be tested is inaccurate.
According to the invention, in the low-temperature analysis of the energy storage battery, the discharge voltage of the energy storage battery in each low-temperature test group is analyzed, so that the running stability of the energy storage battery in a low-temperature environment is effectively displayed, and meanwhile, the short circuit of the energy storage battery in the low-temperature environment is prevented.
S6, displaying a test result: and displaying whether the upper limit value and the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested are accurate or not, and displaying the corresponding limit operation upper limit temperature and limit operation lower limit temperature of the energy storage battery to be tested.
Referring to fig. 2, in a second aspect, the present invention provides an energy storage battery test data processing system, which includes an energy storage battery basic standard acquisition module, an energy storage battery high temperature test module, an energy storage battery high temperature analysis module, an energy storage battery low temperature test module, an energy storage battery low temperature analysis module and a display terminal.
The energy storage battery high-temperature test module is respectively connected with the energy storage battery basic standard acquisition module and the energy storage battery high-temperature analysis module, the energy storage battery low-temperature test module is respectively connected with the energy storage battery basic standard acquisition module and the energy storage battery low-temperature analysis module, and the display terminal is respectively connected with the energy storage battery high-temperature analysis module and the energy storage battery low-temperature analysis module.
The energy storage battery basic standard acquisition module is used for acquiring standard information corresponding to the energy storage battery to be tested.
The energy storage battery high-temperature test module is used for setting each high-temperature test group, placing the energy storage battery to be tested in each high-temperature test group of the test bin, and carrying out high-temperature test, so as to collect high-temperature test information corresponding to each high-temperature test group in the test bin;
the high-temperature analysis module of the energy storage battery is used for analyzing the operation coincidence index of the energy storage battery to be tested under each high-temperature test group based on the corresponding high-temperature test information in each high-temperature test group in the test bin, screening out the corresponding limit operation upper limit temperature of the energy storage battery to be tested, and judging whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
the low-temperature test module of the energy storage battery is used for setting each low-temperature test group, placing the energy storage battery to be tested in each low-temperature test group of the test bin, and performing low-temperature test, so as to acquire low-temperature test information corresponding to each low-temperature test group in the test bin, wherein the low-temperature test information comprises discharge duration and discharge voltage corresponding to each acquisition time point;
the low-temperature analysis module of the energy storage battery is used for analyzing the operation coincidence index of the energy storage battery to be tested under each low-temperature test group according to the low-temperature test information corresponding to each low-temperature test group in the test bin, screening out the limit operation lower limit temperature corresponding to the energy storage battery to be tested, and judging whether the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
the display terminal is used for displaying whether the upper limit value and the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested are accurate or not and displaying the corresponding limit operation upper limit temperature and limit operation lower limit temperature of the energy storage battery to be tested.
According to the embodiment of the invention, the operation effects of the energy storage battery in each high-temperature test group and each low-temperature test group are analyzed, and the limit operation upper limit temperature and the limit operation lower limit temperature corresponding to the energy storage battery are confirmed, so that the defects in the prior art are overcome, the automatic analysis of the test data of the energy storage battery is realized, the accuracy of the analysis result of the test data of the energy storage battery is improved, the workload of engineers is reduced, the efficiency and the effect of data processing are improved, the reference is provided for the selection of the use scene of the follow-up energy storage battery, and the use safety of the energy storage battery is ensured.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (9)
1. The method for processing the test data of the energy storage battery is characterized by comprising the following steps:
s1, acquiring basic standards of an energy storage battery: obtaining standard information corresponding to an energy storage battery to be tested, wherein the standard information comprises a standard running environment temperature interval and a charging time length under a standard charging voltage;
s2, high-temperature testing of the energy storage battery: setting each high-temperature test group based on the upper limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested, putting the energy storage battery to be tested into each high-temperature test group of the test bin, and performing high-temperature test, thereby collecting high-temperature test information corresponding to each high-temperature test group in the test bin, wherein the high-temperature test information comprises the temperature of the energy storage battery to be tested, the charging time of the energy storage battery to be tested, the apparent image of the energy storage battery to be tested, the carbon monoxide concentration and the hydrogen concentration in the test bin;
s3, high-temperature analysis of the energy storage battery: analyzing the operation coincidence index of the energy storage battery to be tested under each high-temperature test group based on the corresponding high-temperature test information in each high-temperature test group in the test bin, screening out the limit operation upper limit temperature corresponding to the energy storage battery to be tested, and judging whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
s4, low-temperature test of the energy storage battery: setting each low-temperature test group based on the lower limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested, putting the energy storage battery to be tested into each low-temperature test group of the test bin, and performing low-temperature test, thereby acquiring low-temperature test information corresponding to each low-temperature test group in the test bin, wherein the low-temperature test information comprises discharge duration and discharge voltage corresponding to each acquisition time point;
s5, low-temperature analysis of the energy storage battery: analyzing the operation conformity index of the energy storage battery to be tested under each low-temperature test group according to the low-temperature test information corresponding to each low-temperature test group in the test bin, screening out the limit operation lower limit temperature corresponding to the energy storage battery to be tested, and judging whether the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
s6, displaying a test result: and displaying whether the upper limit value and the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested are accurate or not, and displaying the corresponding limit operation upper limit temperature and limit operation lower limit temperature of the energy storage battery to be tested.
2. The method for processing test data of an energy storage battery according to claim 1, wherein the high temperature test is performed in step S2, and the specific test process is as follows:
a1, taking an upper limit value of a standard operation environment temperature interval corresponding to the energy storage battery to be tested as a high-temperature reference value, setting each high-temperature test group according to a preset temperature difference, and sequentially and respectively placing each energy storage battery to be tested with the same specification and zero electric quantity into each high-temperature test group of a test bin;
a2, connecting the energy storage batteries to be tested in each high-temperature test group of the test bin to a switch of the energy storage battery to be tested corresponding to standard charging voltage, and charging the energy storage batteries to be tested in each high-temperature test group of the test bin after the switch is turned on;
a3, after the electric quantity of the energy storage battery to be tested in each high-temperature test group in the test bin is full, closing the switch to stop charging, collecting high-temperature test information corresponding to each high-temperature test group in the test bin, and ending the high-temperature test after the collection is completed.
3. The method for processing test data of energy storage battery according to claim 1, wherein the operation compliance index of the energy storage battery to be tested under each high temperature test group is analyzed by the following specific analysis process:
according to the temperature and the charging time length of the energy storage battery to be tested corresponding to each high-temperature test group in the test bin, analyzing to obtain a first operation coincidence index corresponding to the energy storage battery to be tested under each high-temperature test group, and recording asWherein i represents the number corresponding to each high temperature test group, < >>；
Analyzing according to the apparent image of each high-temperature test group corresponding to the energy storage battery to be tested in the test bin, and the carbon monoxide concentration and the hydrogen concentration in the test bin to obtain the operation safety compliance index corresponding to the energy storage battery to be tested under each high-temperature test group, and marking as；
By calculation formulaObtaining the operation compliance index of the energy storage battery to be tested under each high-temperature test group>Wherein->、/>And respectively setting weight factors corresponding to the first operation compliance indexes and the operation safety compliance indexes.
4. The method for processing test data of an energy storage battery according to claim 3, wherein the specific calculation formula of the first operation compliance index corresponding to the energy storage battery to be tested under each high temperature test group is as follows:wherein->、/>Respectively setting the temperature of the standard energy storage battery to be tested and the charging time length of the standard energy storage battery to be tested,、/>respectively representing the temperature and the charging time length of the energy storage battery to be tested corresponding to the ith high-temperature test group,/-for the energy storage battery to be tested>、/>Respectively setting weight factors corresponding to the temperature and the charging time of the energy storage battery to be tested.
5. The method for processing test data of energy storage battery according to claim 3, wherein the analysis obtains the corresponding operation safety compliance index of the energy storage battery to be tested under each high temperature test group, and the specific analysis process is as follows:
based on the test binThe apparent images of the energy storage batteries to be tested corresponding to the high-temperature test groups are calculated to obtain the surface flatness coincidence coefficients corresponding to the energy storage batteries to be tested corresponding to the high-temperature test groups, and the surface flatness coincidence coefficients are recorded as；
By calculation formulaObtaining the corresponding operation safety compliance index ++of the energy storage battery to be tested under each high temperature test group>Wherein->、/>Respectively represent the concentration of carbon monoxide and hydrogen in the corresponding test bin of the ith high temperature test group,/->、/>Respectively representing the initial carbon monoxide concentration and the initial hydrogen concentration in the test bin,/->、/>、/>Respectively set weight factors corresponding to the surface flatness conforming coefficient, the carbon monoxide concentration and the hydrogen concentration.
6. The method for processing test data of an energy storage battery according to claim 1, wherein the method is characterized in that the method screens out the corresponding limit operation upper limit temperature of the energy storage battery to be tested and simultaneously judges whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate, and comprises the following specific processes:
comparing the operation compliance index of the energy storage battery to be tested under each high-temperature test group with a preset operation compliance index threshold, judging the temperature in the high-temperature test group as a safe temperature if the operation compliance index of the energy storage battery to be tested under a certain high-temperature test group is greater than or equal to the preset operation compliance index threshold, and marking the high-temperature test group as a safe high-temperature test group so as to screen each safe high-temperature test group;
sorting the operation coincidence indexes of the energy storage batteries to be tested in each safe high-temperature test group according to descending order, and taking the temperature in the first corresponding safe high-temperature test group ranked by the operation coincidence indexes as the corresponding limit operation upper limit temperature of the energy storage batteries to be tested;
and comparing the upper limit temperature of the standard operation environment temperature range of the energy storage battery to be tested with the upper limit value of the standard operation environment temperature range, if the upper limit temperature of the energy storage battery to be tested is the same as the upper limit value of the standard operation environment temperature range, judging that the upper limit value of the standard operation environment temperature range of the energy storage battery to be tested is accurate, otherwise, judging that the upper limit value of the standard operation environment temperature range of the energy storage battery to be tested is inaccurate.
7. The method for processing test data of an energy storage battery according to claim 1, wherein the low-temperature test is performed in step S4, and the specific test process is as follows:
b1, taking the lower limit value of the standard operation environment temperature interval corresponding to the energy storage battery to be tested as a low-temperature reference value, setting each low-temperature test group according to a set temperature difference, and sequentially and respectively placing all the energy storage batteries to be tested with the same specification and full electric quantity into each low-temperature test group of a test bin;
and B2, discharging each energy storage battery to be tested in each low-temperature test group of the test bin at a set discharging voltage, setting each collecting time point in the discharging process, collecting the discharging voltage corresponding to each collecting time point of the energy storage battery to be tested in each low-temperature test group of the test bin, collecting the discharging time length of each energy storage battery to be tested in each low-temperature test group of the test bin when the electric quantity of each energy storage battery to be tested in each low-temperature test group of the test bin is zero, and ending the low-temperature test.
8. The method for processing test data of energy storage battery according to claim 1, wherein the operation compliance index of the energy storage battery to be tested under each low temperature test group is analyzed by the following specific analysis process:
substituting the discharge time length of the energy storage battery to be tested in each low-temperature test group of the test bin and the discharge voltage corresponding to each acquisition time point into a calculation formulaObtaining the operation compliance index +.f of the energy storage battery to be tested under each low-temperature test group>Wherein->For a predetermined standard discharge period when the energy storage battery to be tested is discharged at a predetermined discharge voltage,/->Indicating the discharge time length of the energy storage battery to be tested in the j-th low-temperature test group of the test bin,for a set discharge voltage +.>Indicating the discharge voltage corresponding to the t acquisition time point in the j-th low-temperature test group of the test bin, < ->、/>Respectively setting a weight factor corresponding to the discharge time length and the discharge voltage, wherein j represents the number corresponding to each low-temperature test group,>，/>numbers corresponding to each acquisition time point are indicated, < ->。
9. An energy storage battery test data processing system, comprising:
the energy storage battery basic standard acquisition module is used for acquiring standard information corresponding to the energy storage battery to be tested;
the energy storage battery high-temperature test module is used for setting each high-temperature test group, placing the energy storage battery to be tested in each high-temperature test group of the test bin, and carrying out high-temperature test, so as to collect high-temperature test information corresponding to each high-temperature test group in the test bin;
the high-temperature analysis module of the energy storage battery is used for analyzing the operation coincidence index of the energy storage battery to be tested under each high-temperature test group based on the corresponding high-temperature test information in each high-temperature test group in the test bin, screening out the corresponding limit operation upper limit temperature of the energy storage battery to be tested, and judging whether the upper limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
the low-temperature test module of the energy storage battery is used for setting each low-temperature test group, placing the energy storage battery to be tested in each low-temperature test group of the test bin, and performing low-temperature test, so as to acquire low-temperature test information corresponding to each low-temperature test group in the test bin, wherein the low-temperature test information comprises discharge duration and discharge voltage corresponding to each acquisition time point;
the low-temperature analysis module of the energy storage battery is used for analyzing the operation coincidence index of the energy storage battery to be tested under each low-temperature test group according to the low-temperature test information corresponding to each low-temperature test group in the test bin, screening out the limit operation lower limit temperature corresponding to the energy storage battery to be tested, and judging whether the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested is accurate or not;
the display terminal is used for displaying whether the upper limit value and the lower limit value of the standard operation environment temperature interval of the energy storage battery to be tested are accurate or not and displaying the corresponding limit operation upper limit temperature and limit operation lower limit temperature of the energy storage battery to be tested.
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