CN114355192B - Battery capacity evaluation method - Google Patents
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- CN114355192B CN114355192B CN202111333776.1A CN202111333776A CN114355192B CN 114355192 B CN114355192 B CN 114355192B CN 202111333776 A CN202111333776 A CN 202111333776A CN 114355192 B CN114355192 B CN 114355192B
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Abstract
The invention discloses a battery capacity evaluation method, which particularly relates to the field of battery capacity measurement and calculation, and adopts the technical scheme that: the invention comprises a data acquisition device, wherein the data acquisition device comprises a timer, a charger, a transformer, one 500W bulb, a lamp holder, a temperature monitoring recorder and a power line, then a single battery a is selected and charged, different models and brands can be selected by the single battery a, according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, the single battery a is charged, and the time for charging is recorded, and the invention has the beneficial effects that: the battery capacity evaluation method can be used on the station provided with the data acquisition device, the battery does not need to be separated from used equipment or stations, the operation is convenient and quick, the operation is simple, and the battery capacity evaluation method is worthy of being popularized and used in the later period.
Description
Technical Field
The invention relates to the field of battery capacity measurement and calculation, in particular to a battery capacity evaluation method.
Background
The battery capacity is one of important performance indexes for measuring the performance of the battery, and represents the electric quantity discharged by the battery under certain conditions, namely the capacity of the battery, generally in ampere-hour units, the battery capacity is divided into actual capacity, theoretical capacity and rated capacity according to different conditions, the battery capacity C is the integral of current I in the time from t0 to t1, and the battery is divided into positive and negative poles.
The prior art has the following defects: the existing lead-acid battery core capacity is usually discharged through load connection until the battery electric quantity is discharged, and the capacity released by the battery is calculated.
The method requires equipment or stations for battery separation for capacity checking, and the capacity checking cost is high.
Therefore, it is necessary to invent a battery capacity evaluation method.
Disclosure of Invention
Therefore, the invention provides a battery capacity evaluation method to solve the problem that the existing lead-acid battery core capacity is usually discharged through load connection until the battery electric quantity is discharged, and the capacity released by the battery is calculated.
In order to achieve the above object, the present invention provides the following technical solutions: the battery capacity evaluation method specifically comprises the following steps:
S1, installing a data acquisition device, wherein the data acquisition device comprises a timer, a charger, a transformer, one 500W bulb, a lamp holder, a temperature monitoring recorder and a power line, then selecting and charging a single battery a, wherein the single battery a can be selected into different models and brands, according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, charging the single battery a, and recording the time for completing charging;
S2, discharging a single battery a in S1, wherein C is battery capacity, I2 is discharge current and T2 discharge time according to a formula C=I2×T2, discharging the single battery a, connecting the fully charged battery with a 500W bulb and a lamp holder through a power line, and recording the time for completing the discharge by a timer during the period;
S3, charging and discharging for 3 times according to the steps in S1 and S2, and activating a single cell a in S1;
S4, starting a timer, charging a single battery a by using a charger, controlling input voltage through a transformer during the charging period, counting the number of times as M, setting the value range of M as 6-24 times, calculating the actual battery capacity according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, calculating the actual battery capacity, averaging to obtain actual data, discharging the single battery a by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power line, counting the number of times as N, setting the value range of N as 6-24 times, calculating the actual battery capacity after discharging the single battery a according to a formula C=I2×T2, wherein C is the battery capacity, I2 is the discharging current, and T2 discharging time, and averaging to obtain the actual data, thereby obtaining C1 by taking the average value of the calculated capacity during the battery charging and discharging processes;
S5, selecting a battery pack for evaluation, wherein the battery pack consists of single batteries, eight groups of single batteries are respectively marked as a battery a, a battery b, a battery c, a battery d, a battery e, a battery f, a battery g and a battery h, and all eight groups of single batteries are activated;
S6, charging the battery pack by using a charger, wherein the input voltage is controlled through a transformer during the charging period, the number of charging times is recorded as M, the value range of M is set to be 6-24 times, the charging current is calculated according to a formula C=T1×I1, C is the battery capacity, I1 is the charging current, T1 is the charging time, the actual battery capacity is calculated, the average value is obtained, the actual data is obtained, the battery pack is discharged by using a discharging device consisting of a 500W bulb, a lamp holder, the transformer and a power wire, the number of discharging times is recorded as N, the value range of N is set to be 6-24 times, the discharging time is set to be 6-24 times, the actual battery capacity is calculated after the battery pack is discharged according to a formula C=I2×T2, I2 is the discharging current, the actual data is obtained by taking the average value, and the C2 is obtained by taking the average value of the calculated capacity in the charging and discharging process of the battery;
s7, calculating the capacity of the single battery in the battery pack according to the capacity of the single battery in the battery pack with C3=C2/L, C2 being the total capacity measured by the battery pack, L being the number of the single battery in the battery pack, obtaining the reasonable capacity of the single battery by comparing the numerical values of C3 and C1 and taking the average value, outputting the packaged data calculation model for each brand and model of battery through data input, so that the output capacity of the battery pack and the capacity of the single battery can be multiple and the calculation node and weight can be multiple; the encapsulated data calculation model output can also be placed outside the data calculation model, or encapsulated into a model containing other data, or not encapsulated.
Preferably, according to the temperature monitoring recorder set in S1, the temperature change during the battery charging period is recorded by the temperature monitoring recorder, and the value is P, so that the battery capacity of the battery to be tested and the battery temperature at the end of the battery charging and discharging and different test environment temperatures are recorded under a plurality of test environment temperatures.
Preferably, the temperature monitoring recorder is a novel recorder which is designed and produced according to actual demands of various industrial sites and integrates multiple functions of display, processing, recording, integrating, alarming, power distribution and the like, and the temperature monitoring recorder is provided with 8 paths of input channels and 2 paths of analog quantity output, and the channels are isolated by points; the device can directly select and receive signals of various thermocouples, thermal resistors, pressure transmitters, voltages and currents, digitally display the signals to be measured, record trends and digitally record the signals, simultaneously record scale values, time and curves of each signal on paper grids with the width of 100mm printed by the device, and print channel numbers beside tracks of all channels.
The beneficial effects of the invention are as follows: the invention provides a new method for the nuclear capacity of the battery, which comprises the steps of data collection of the battery, calculation of the released capacity of the battery and calculation of the residual capacity of the battery, and the method is accurate to the capacity of a single battery, can be used for the nuclear capacity of a station provided with a data acquisition device, comprises but is not limited to a communication base station, can nuclear the capacity of the single battery in the whole group of batteries at one time, can use the capacity evaluation method for the battery on the station provided with the data acquisition device, is convenient and quick, is simple to operate, and is worth popularizing and using in the later period.
Drawings
FIG. 1 is a schematic diagram of an overall technical scheme provided by the invention;
FIG. 2 is a diagram of a data acquisition step provided by the present invention;
Fig. 3 is a schematic diagram of overall steps of battery capacity evaluation provided by the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
Embodiment 1, referring to fig. 1-3, the method for evaluating battery capacity provided by the invention specifically comprises the following steps:
S1, installing a data acquisition device, wherein the data acquisition device comprises a timer, a charger, a transformer, one 500W bulb, a lamp holder, a temperature monitoring recorder and a power line, then selecting and charging a single battery a, wherein the single battery a can be of different types and brands, according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, charging the single battery a, and recording the time for completing charging;
S2, discharging a single battery a in S1, wherein C is battery capacity, I2 is discharge current and T2 discharge time according to a formula C=I2×T2, discharging the single battery a, connecting the fully charged battery with a 500W bulb and a lamp holder through a power line, and recording the time for completing the discharge by a timer during the period;
S3, charging and discharging for 3 times according to the steps in S1 and S2, and activating a single cell a in S1;
S4, starting a timer, charging a single battery a by using a charger, controlling input voltage through a transformer during the charging period, counting the number of times as M, setting the value range of M as 6 times, calculating the actual battery capacity according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, calculating the actual battery capacity, averaging to obtain the actual data, discharging the single battery a by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power line, counting the number of times as N, setting the value range of N as 6 times, calculating the actual battery capacity after discharging the single battery a according to a formula C=I2×T2, wherein C is the battery capacity, I2 is the discharging current, and T2 discharging time, and obtaining the actual data by averaging, thereby obtaining C1 by taking the average value of the calculated capacity during the battery charging and discharging processes;
S5, selecting a battery pack for evaluation, wherein the battery pack consists of single batteries, eight groups of single batteries are respectively marked as a battery a, a battery b, a battery c, a battery d, a battery e, a battery f, a battery g and a battery h, and all eight groups of single batteries are activated;
S6, charging the battery pack by using a charger, wherein the input voltage is controlled through a transformer during the charging period, the number of charging times is recorded as M, the value range of M is set to be 6 times, the actual battery capacity is calculated according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, the actual battery capacity is calculated, the average value is obtained, the battery pack is discharged by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power line, the number of discharging times is recorded as N, the value range of N is set to be 6 times, the actual battery capacity is calculated after discharging the battery pack according to a formula C=I2×T2, I2 is the discharging current, T2 discharging time, and the actual data is obtained by averaging, so that the actual battery capacity calculated in the charging and discharging processes of the battery is averaged, and C2 is obtained;
S7, calculating the capacity of the single battery in the battery pack according to the capacity of the single battery in the battery pack with C3=C2/L, C2 being the total capacity measured by the battery pack, L being the number of the single battery in the battery pack, obtaining the reasonable capacity of the single battery by comparing the numerical values of C3 and C1 and taking the average value, outputting the packaged data calculation model for each brand and model of battery through data input, so that the output capacity of the battery pack and the capacity of the single battery can be multiple and the calculation node and weight can be multiple; the output of the encapsulated data calculation model can be put outside the data calculation model or encapsulated into a model containing other data, or not encapsulated;
Further, according to the temperature monitoring recorder set in the step S1, the temperature change during the battery charging period is recorded through the temperature monitoring recorder, the value is P, so that the battery capacity of the battery to be tested and the battery temperature at the end of the battery charging and discharging and different test environment temperatures are recorded under a plurality of test environment temperatures;
Further, the temperature monitoring recorder is designed and produced according to actual demands of various industrial sites, integrates multiple functions of display, processing, recording, integrating, alarming, power distribution and the like, and is provided with 8 paths of input channels and 2 paths of analog quantity output, and the channels are isolated by points; the device can directly select and receive signals of various thermocouples, thermal resistors, pressure transmitters, voltages and currents, can digitally display the signals to be measured, perform trend recording and digital recording, can simultaneously record scale values, time and curves of each signal on paper grids with the width of 100mm printed per se, and can print channel numbers beside tracks of all channels.
Embodiment 2, referring to fig. 1-3, the method for evaluating battery capacity provided by the invention specifically comprises the following steps:
S1, installing a data acquisition device, wherein the data acquisition device comprises a timer, a charger, a transformer, one 500W bulb, a lamp holder, a temperature monitoring recorder and a power line, then selecting and charging a single battery a, wherein the single battery a can be of different types and brands, according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, charging the single battery a, and recording the time for completing charging;
S2, discharging a single battery a in S1, wherein C is battery capacity, I2 is discharge current and T2 discharge time according to a formula C=I2×T2, discharging the single battery a, connecting the fully charged battery with a 500W bulb and a lamp holder through a power line, and recording the time for completing the discharge by a timer during the period;
S3, charging and discharging for 3 times according to the steps in S1 and S2, and activating a single cell a in S1;
S4, starting a timer, charging a single battery a by using a charger, controlling input voltage through a transformer during the charging period, counting the number of times as M, setting the value range of M as 12 times, calculating the actual battery capacity according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, calculating the actual battery capacity, averaging to obtain the actual data, discharging the single battery a by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power line, counting the number of times as N, setting the value range of N as 12 times, calculating the actual battery capacity after discharging the single battery a according to a formula C=I2×T2, wherein C is the battery capacity, I2 is the discharging current, and T2 discharging time, and obtaining the actual data by averaging, thereby obtaining C1 by taking the average value of the calculated capacity during the battery charging and discharging processes;
S5, selecting a battery pack for evaluation, wherein the battery pack consists of single batteries, eight groups of single batteries are respectively marked as a battery a, a battery b, a battery c, a battery d, a battery e, a battery f, a battery g and a battery h, and all eight groups of single batteries are activated;
S6, charging the battery pack by using a charger, wherein the input voltage is controlled through a transformer during the charging period, the number of charging times is recorded as M, the value range of M is set to be 12 times, the actual battery capacity is calculated according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, the actual battery capacity is calculated, the average value is obtained, the battery pack is discharged by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power line, the number of discharging times is recorded as N, the value range of N is set to be 12 times, the actual battery capacity is calculated after discharging the battery pack according to a formula C=I2×T2, I2 is the discharging current, T2 discharging time, and the actual data is obtained by averaging, so that the calculated capacity is averaged in the charging and discharging processes of the battery, and C2 is obtained;
s7, calculating the capacity of the single battery in the battery pack according to the condition that C3=C2/L, wherein C3 is the capacity of the single battery in the battery pack, C2 is the total capacity measured by the battery pack, L is the number of the single battery in the battery pack, and obtaining the reasonable capacity of the single battery by comparing the numerical values of C3 and C1 and taking the average value;
Further, according to the temperature monitoring recorder set in the step S1, the temperature change during the battery charging period is recorded through the temperature monitoring recorder, the value is P, so that the battery capacity of the battery to be tested and the battery temperature at the end of the battery charging and discharging and different test environment temperatures are recorded under a plurality of test environment temperatures;
Further, the temperature monitoring recorder is designed and produced according to actual demands of various industrial sites, integrates multiple functions of display, processing, recording, integrating, alarming, power distribution and the like, and is provided with 8 paths of input channels and 2 paths of analog quantity output, and the channels are isolated by points; the device can directly select and receive signals of various thermocouples, thermal resistors, pressure transmitters, voltages and currents, can digitally display the signals to be measured, perform trend recording and digital recording, can simultaneously record scale values, time and curves of each signal on paper grids with the width of 100mm printed by the device, and can print channel numbers beside tracks of all channels.
Embodiment 3, referring to fig. 1-2, the method for evaluating battery capacity provided by the invention specifically comprises the following steps:
S1, installing a data acquisition device, wherein the data acquisition device comprises a timer, a charger, a transformer, one 500W bulb, a lamp holder, a temperature monitoring recorder and a power line, then selecting and charging a single battery a, wherein the single battery a can be selected into different models and brands, according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, charging the single battery a, and recording the time for completing charging;
S2, discharging a single battery a in S1, wherein C is battery capacity, I2 is discharge current and T2 discharge time according to a formula C=I2×T2, discharging the single battery a, connecting the fully charged battery with a 500W bulb and a lamp holder through a power line, and recording the time for completing the discharge by a timer during the period;
S3, charging and discharging for 3 times according to the steps in S1 and S2, and activating a single cell a in S1;
S4, starting a timer, charging a single battery a by using a charger, controlling input voltage through a transformer during the charging period, counting the number of times as M, setting the value range of M as 24 times, calculating the actual battery capacity according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, calculating the actual battery capacity, averaging to obtain the actual data, discharging the single battery a by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power line, counting the number of times as N, setting the value range of N as 24 times, calculating the actual battery capacity after discharging the single battery a according to a formula C=I2×T2, wherein C is the battery capacity, I2 is the discharging current, and T2 discharging time, and obtaining the actual data by averaging, thereby obtaining C1 by taking the average value of the calculated capacity during the battery charging and discharging processes;
S5, selecting a battery pack for evaluation, wherein the battery pack consists of single batteries, eight groups of single batteries are respectively marked as a battery a, a battery b, a battery c, a battery d, a battery e, a battery f, a battery g and a battery h, and all eight groups of single batteries are activated;
S6, charging the battery pack by using a charger, wherein the input voltage is controlled through a transformer during the charging period, the number of charging times is recorded as M, the value range of M is set to 24 times, the actual battery capacity is calculated according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, the actual battery capacity is calculated, the average value is obtained, the battery pack is discharged by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power line, the number of discharging times is recorded as N, the value range of N is set to 24 times, the actual battery capacity is calculated after discharging the battery pack according to a formula C=I2×T2, I2 is the discharging current, T2 discharging time, and the actual data is obtained by averaging, so that the average value of the calculated capacity in the charging and discharging processes of the battery is obtained, and C2 is obtained;
s7, calculating the capacity of the single battery in the battery pack according to the condition that C3=C2/L, wherein C3 is the capacity of the single battery in the battery pack, C2 is the total capacity measured by the battery pack, L is the number of the single battery in the battery pack, and obtaining the reasonable capacity of the single battery by comparing the numerical values of C3 and C1 and taking the average value;
Further, according to the temperature monitoring recorder set in the step S1, the temperature change during the battery charging period is recorded through the temperature monitoring recorder, the value is P, so that the battery capacity of the battery to be tested and the battery temperature at the end of the battery charging and discharging and different test environment temperatures are recorded under a plurality of test environment temperatures;
Further, the temperature monitoring recorder is designed and produced according to actual demands of various industrial sites, integrates multiple functions of display, processing, recording, integrating, alarming, power distribution and the like, and is provided with 8 paths of input channels and 2 paths of analog quantity output, and the channels are isolated by points; the device can directly select and receive signals of various thermocouples, thermal resistors, pressure transmitters, voltages and currents, digitally display the signals to be measured, record trends and digitally record the signals, simultaneously record scale values, time and curves of each signal on paper grids with the width of 100mm printed by the device, and print channel numbers beside tracks of all channels, and belongs to the prior art, so that redundant description is omitted.
The application process of the invention is as follows:
1. Test data, which is to perform discharge test on batteries of different brands and models, collect test data, or obtain test data from manufacturers or other channels;
2. A data calculation model, a calculation method for generating an output result;
3. the data acquisition device can acquire voltage or (and) current of the single battery, and the whole set of voltage and current data;
4. the single battery capacity can be calculated;
5. the battery capacity can be calculated;
The whole process uses test data to train and test a data calculation model, data acquired by a data acquisition device is input into the data calculation model, and the data calculation model outputs the capacity of a single battery and/or the capacity of a battery pack.
The above description is of the preferred embodiments of the present invention, and any person skilled in the art may modify the present invention or make modifications to the present invention with the technical solutions described above. Therefore, any simple modification or equivalent made according to the technical solution of the present invention falls within the scope of the protection claimed by the present invention.
Claims (3)
1. A battery capacity evaluation method is characterized in that: the method specifically comprises the following steps:
S1, installing a data acquisition device, wherein the data acquisition device comprises a timer, a charger, a transformer, one 500W bulb, a lamp holder, a temperature monitoring recorder and a power line, then selecting and charging a single battery a, selecting different models and brands of the single battery a, and recording the time for completing charging according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time;
S2, discharging the single battery a in S1, according to a formula C=I2×T2, wherein C is battery capacity, I2 is discharge current, T2 is discharge time, discharging the single battery a, connecting the fully charged battery with a 500W bulb and a lamp holder through a power line, and recording the used discharge by a timer
Time;
S3, charging and discharging for 3 times according to the steps in S1 and S2, and activating a single cell a in S1;
S4, starting a timer, charging a single battery a by using a charger according to the steps in S1 and S2, controlling input voltage by using a transformer during the charging period, counting the number of times as M, setting the value range of M as 6-24 times, calculating the actual battery capacity according to a formula C=T1X1 1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, calculating the actual battery capacity, averaging to obtain the actual data, discharging the single battery a by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power line, counting the number of times as N, setting the value range of N as 6-24 times, calculating the actual battery capacity according to a formula C=I2X12, wherein C is the battery capacity, I2 is the discharging current, T2 is the discharging time, and leveling the actual battery capacity after discharging the single battery a
The average value obtains actual data, and therefore, the average value is obtained through the capacity calculated in the charging and discharging processes of the battery, and C1 is obtained;
S5, selecting a battery pack for evaluation, wherein the battery pack consists of single batteries, eight groups of single batteries are respectively marked as a battery a, a battery b, a battery c, a battery d, a battery e, a battery f, a battery g and a battery h, and all eight groups of single batteries are activated;
S6, charging the battery pack by using a charger, wherein the input voltage is controlled through a transformer during the charging period, the number of charging times is recorded as M, the value range of M is set to be 6-24 times, according to a formula C=T1×I1, wherein C is the battery capacity, I1 is the charging current, T1 is the charging time, the actual battery capacity is calculated, the actual data is obtained by taking the average value, the battery pack is discharged by using a discharging device consisting of a 500W bulb, a lamp holder, a transformer and a power wire, the number of discharging times is recorded as N, the value range of N is set to be 6-24 times, according to a formula C=I2×T2, wherein C is the battery capacity, I2 is the discharging current, T2 is the discharging time, the actual battery capacity is calculated after the battery pack is discharged, the actual data is obtained by taking the average value, and the battery is charged and discharged by the battery
Averaging the calculated capacity to obtain C2;
S7, calculating the capacity of the single battery in the battery pack according to the capacity of the single battery in the battery pack with C3=C2/L, C2 being the total capacity measured by the battery pack, L being the number of the single battery in the battery pack, obtaining the reasonable capacity of the single battery by comparing the numerical values of C3 and C1 and taking the average value, inputting the data acquired by the data acquisition device into the data calculation model for each brand and model of battery, and outputting the capacity of the single battery and the capacity of the battery pack by the data calculation model; the computing nodes and weights are multiple and multi-layered.
2. The battery capacity evaluation method according to claim 1, characterized in that: according to the temperature monitoring recorder set in the step S1, the temperature change during the battery charging period is recorded through the temperature monitoring recorder, the value is P, so that the battery capacity of the battery to be tested and the battery temperature at the end of the battery charging and discharging and different test environment temperatures are recorded under a plurality of test environment temperatures.
3. The battery capacity evaluation method according to claim 1, characterized in that: the temperature monitoring recorder is designed and produced according to actual demands of various industrial sites, integrates multiple functions of display, processing, recording, calculation, alarming and power distribution, and is provided with 8 paths of input channels at most, 2 paths of analog quantity output and point-to-point isolation between the channels; the method is characterized in that signals of various thermocouples, thermal resistors, pressure transmitters, voltages and currents are directly selected and received, the signals to be measured are digitally displayed, trend records and digital records are carried out, the scale value, the time and the curve of each signal can be recorded on paper grids with the width of 100mm printed by the method, and channel numbers are printed beside the track of each channel.
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