CN114355192A - Battery capacity evaluation method - Google Patents
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- CN114355192A CN114355192A CN202111333776.1A CN202111333776A CN114355192A CN 114355192 A CN114355192 A CN 114355192A CN 202111333776 A CN202111333776 A CN 202111333776A CN 114355192 A CN114355192 A CN 114355192A
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Abstract
The invention discloses a battery capacity evaluation method, and particularly relates to the field of battery capacity measurement, wherein the technical scheme is as follows: the intelligent temperature control device comprises a data acquisition device, wherein the data acquisition device comprises a timer, a charger, a transformer, a 500W bulb, a lamp holder, a temperature monitoring recorder and a power line, then a single battery a is selected and charged, the single battery A can be selected into different models and brands, according to a formula C, T1 xI 1, wherein C is battery capacity, I1 is charging current, T1 is charging time, the single battery a is charged, and the time used for charging completion is recorded, and the intelligent temperature control device has the beneficial effects that: the capacity evaluation method for the battery can be used for checking the capacity of the battery on the station provided with the data acquisition device, the battery does not need to be separated from used equipment or stations, and the method is convenient, quick, simple to operate and worthy of later popularization and use.
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 units of ampere-hour, the battery capacity is divided into actual capacity, theoretical capacity and rated capacity according to different conditions, the battery capacity C is the current I integrated within the time from t0 to t1, and the battery is divided into a positive electrode and a negative electrode.
The prior art has the following defects: the existing lead-acid battery is generally discharged by connecting a load until the battery capacity is emptied, and the capacity released by the battery is calculated.
The method needs the battery to be separated from the used equipment or station for checking the capacity, and the checking cost is high.
Therefore, it is necessary to develop a battery capacity evaluation method.
Disclosure of Invention
Therefore, the invention provides a battery capacity evaluation method to solve the problem that the capacity released by the battery is calculated by discharging the battery capacity of the conventional lead-acid battery through a load until the battery capacity is emptied.
In order to achieve the above purpose, the invention provides the following technical scheme: a 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 from different types and brands according to a formula C which is T1 multiplied by I1, wherein C is battery capacity, I1 is charging current, and T1 is charging time, charging the single battery a, and recording the time used for charging;
s2, discharging the single battery a in S1 according to the formula C-I2 × T2, where C is the battery capacity, I2 is the discharge current, and T2 is the discharge time, discharging the single battery a, connecting the fully charged battery to the 500W bulb and the lamp holder through the power cord, and recording the time taken for the completion of the discharge by the timer;
s3, charging and discharging 3 times according to the steps in S1 and S2, and activating the single battery a in S1;
s4, according to the steps in S1 and S2, starting a timer, charging the single battery a by a charger, during which the input voltage is controlled by a transformer, the number of times of charging is recorded as M, the value range of M is 6-24 times, the formula C-T1 × I1, where 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 a discharging device composed of a 500W bulb, a lamp holder, a transformer and a power line, the number of times of discharging is recorded as N, the range of N is 6-24 times, the formula C-I2 × T2, where C is the battery capacity, I2 is the discharging current, T2 the discharging time, calculating the actual battery capacity after discharging the single battery a, averaging to obtain the actual data, thereby charging the battery, Averaging the calculated capacities in the discharging process to obtain C1;
s5, selecting a battery pack for evaluation, wherein the battery pack consists of eight groups of single batteries which 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 the eight groups of single batteries are activated;
s6, charging the battery pack by using a charger, during which an input voltage is controlled by a transformer, a charging frequency is recorded as M, a value range of M is 6-24 times, a battery capacity is recorded as T1 × I1, I1 is a charging current, T1 is a charging time, an actual battery capacity is calculated, an average value is obtained, actual data is obtained, the battery pack is discharged by using a discharge device composed of a 500W bulb, a lamp holder, a transformer, and a power line, a discharging frequency is recorded as N, a value range of N is recorded as 6-24 times, a value range of I2 × T2 is recorded as C is a battery capacity, I2 is a discharging current, and a T2 discharging time, after the battery pack is discharged, an actual battery capacity is calculated, an average value is obtained, and thus the capacity calculated in the battery charging and discharging processes is averaged, to yield C2;
s7, calculating the capacity of a single battery in the battery pack according to the C3-C2/L, C3 the capacity of the single battery in the battery pack, C2 the total capacity measured by the battery pack, L the number of the single battery in the battery pack, calculating the reasonable capacity of the single battery by comparing the numerical values of C3 and C1, outputting a package data calculation model through data input for each brand and model of battery to enable the package data calculation model to output the pack capacity and the capacity of the single battery, wherein the number of calculation nodes and the weight can be multiple and can be multiple layers; the encapsulated data calculation model output may be placed outside the data calculation model, or encapsulated into a model containing other data, or may not be encapsulated.
Preferably, according to the temperature monitoring recorder set in S1, the temperature monitoring recorder records the temperature change during the battery charging, and the value is P, so as to record the battery temperature at the end of the battery charging and discharging for the battery capacity and different test environment temperatures of the battery under a plurality of test environment temperatures.
Preferably, the temperature monitoring recorder is a novel recorder which is designed and produced according to actual requirements of various industrial fields and integrates multiple functions of displaying, processing, recording, integrating, alarming, power distribution and the like, the temperature monitoring recorder at most has 8 input channels, 2 analog quantity outputs and point isolation are adopted among the channels; can directly select to receive various thermocouple, thermal resistor, pressure transmitter, voltage and current signals, can carry out digital display and trend recording and digital recording on the measured signals, can simultaneously record scale values, time and curves of each signal on a paper lattice with the width of 100mm printed by the self, and prints channel numbers beside the track of each channel.
The invention has the beneficial effects that: the invention provides a new method for checking the capacity of a battery, which comprises the steps of collecting the data of the battery, calculating the release capacity of the battery and calculating the residual capacity of the battery, is accurate to the capacity of a single battery, can be used for checking the capacity of the battery of a station provided with a data acquisition device, comprises but is not limited to a communication base station, and provides a low-cost method for checking the capacity of the single battery in a whole group of batteries at one time.
Drawings
FIG. 1 is a schematic diagram of the overall technical solution provided by the present invention;
FIG. 2 is a diagram of data acquisition steps provided by the present invention;
fig. 3 is a schematic diagram of the overall steps of the battery capacity evaluation provided by the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Embodiment 1, referring to fig. 1 to 3, the method for evaluating battery capacity according to the present invention specifically includes 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 from different types and brands according to a formula C which is T1 multiplied by I1, wherein C is battery capacity, I1 is charging current, and T1 is charging time, charging the single battery a, and recording the time used for charging;
s2, discharging the single battery a in S1 according to the formula C-I2 × T2, where C is the battery capacity, I2 is the discharge current, and T2 is the discharge time, discharging the single battery a, connecting the fully charged battery to the 500W bulb and the lamp holder through the power cord, and recording the time taken for the completion of the discharge by the timer;
s3, charging and discharging 3 times according to the steps in S1 and S2, and activating the single battery a in S1;
s4, according to the steps in S1 and S2, starting a timer, charging the single battery a by a charger, during which the input voltage is controlled by a transformer, the number of times of charging is recorded as M, the value range of M is set as 6 times, the value range of M is set as T1 × I1 according to the formula C, where 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 a discharging device composed of a 500W bulb, a lamp holder, a transformer and a power line, the number of times of discharging is recorded as N, the value range of N is set as 6 times, the value range of C is I2 × T2, where C is the battery capacity, I2 is the discharging current, and T2 is the discharging time, calculating the actual battery capacity, averaging to obtain the actual data, thereby charging the battery, Averaging the calculated capacities in the discharging process to obtain C1;
s5, selecting a battery pack for evaluation, wherein the battery pack consists of eight groups of single batteries which 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 the eight groups of single batteries are activated;
s6, charging the battery pack with a charger, during which the input voltage is controlled by a transformer, the number of charging times is denoted as M, the value range of M is 6 times, the actual battery capacity is calculated according to a formula C-T1 × I1, where C is the battery capacity, I1 is the charging current, T1 is the charging time, the actual data is obtained by averaging, the battery pack is discharged by a discharge device composed of a 500W bulb, a lamp holder, a transformer, and a power line, the number of discharging times is denoted as N, the value range of N is 6 times, the actual data is obtained by averaging according to a formula C-I2 × T2, where C is the battery capacity, I2 is the discharging current, and T2 is the discharging time, the actual battery capacity is calculated after the battery pack is discharged, the actual data is obtained by averaging, and C2 is obtained by averaging the capacity calculated in the battery charging and discharging processes;
s7, calculating the capacity of a single battery in the battery pack according to the C3-C2/L, C3 the capacity of the single battery in the battery pack, C2 the total capacity measured by the battery pack, L the number of the single battery in the battery pack, calculating the reasonable capacity of the single battery by comparing the numerical values of C3 and C1, outputting a package data calculation model through data input for each brand and model of battery to enable the package data calculation model to output the pack capacity and the capacity of the single battery, wherein the number of calculation nodes and the weight can be multiple and can be multiple layers; the output of the encapsulated data calculation model can also be placed 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 S1, the temperature change during the battery charging is recorded by the temperature monitoring recorder, and the value is P, so that the battery temperature at the end of the battery charging and discharging is recorded for the battery capacity and different test environment temperatures of the battery to be tested at a plurality of test environment temperatures;
furthermore, the temperature monitoring recorder is a novel recorder which is designed and produced according to actual requirements of various industrial fields and integrates multiple functions of displaying, processing, recording, integrating, alarming, power distribution and the like, the temperature monitoring recorder at most has 8 input channels, 2 analog quantity outputs and point isolation are adopted among the channels; can directly select to receive various thermocouple, thermal resistor, pressure transmitter, voltage and current signals, can carry out digital display and trend recording and digital recording on the measured signals, can simultaneously record scale values, time and curves of each signal on a paper lattice with the width of 100mm printed by the self, and prints channel numbers beside the track of each channel.
Embodiment 2, referring to fig. 1 to 3, the method for evaluating battery capacity according to the present invention specifically includes 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 from different types and brands according to a formula C which is T1 multiplied by I1, wherein C is battery capacity, I1 is charging current, and T1 is charging time, charging the single battery a, and recording the time used for charging;
s2, discharging the single battery a in S1 according to the formula C-I2 × T2, where C is the battery capacity, I2 is the discharge current, and T2 is the discharge time, discharging the single battery a, connecting the fully charged battery to the 500W bulb and the lamp holder through the power cord, and recording the time taken for the completion of the discharge by the timer;
s3, charging and discharging 3 times according to the steps in S1 and S2, and activating the single battery a in S1;
s4, according to the steps in S1 and S2, starting a timer, charging the single battery a by a charger, during which the input voltage is controlled by a transformer, the number of times of charging is recorded as M, the value range of M is 12 times, the value range of M is T1 × I1 according to the formula C, where 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 a discharging device composed of a 500W bulb, a lamp holder, a transformer and a power line, the number of times of discharging is recorded as N, the value range of N is 12 times, the value range of C is I2 × T2, where C is the battery capacity, I2 is the discharging current, and T2 is the discharging time, calculating the actual battery capacity, averaging to obtain the actual data, thereby charging the battery, Averaging the calculated capacities in the discharging process to obtain C1;
s5, selecting a battery pack for evaluation, wherein the battery pack consists of eight groups of single batteries which 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 the eight groups of single batteries are activated;
s6, charging the battery pack with a charger, during which the input voltage is controlled by a transformer, the number of charging times is denoted as M, the value range of M is 12 times, the actual battery capacity is calculated according to a formula C-T1 × I1, where C is the battery capacity, I1 is the charging current, T1 is the charging time, the actual data is obtained by averaging, the battery pack is discharged by a discharge device composed of a 500W bulb, a lamp holder, a transformer, and a power line, the number of discharging times is denoted as N, the value range of N is 12 times, the actual data is obtained by averaging according to a formula C-I2 × T2, where C is the battery capacity, I2 is the discharging current, and T2 is the discharging time, the actual battery capacity is calculated after the battery pack is discharged, the actual data is obtained by averaging, and C2 is obtained by averaging the capacity calculated in the battery charging and discharging processes;
s7, calculating the capacity of each battery in the battery pack according to the conditions that C3 is C2/L, C3 is the capacity of each battery in the battery pack, C2 is the total capacity measured by the battery pack, L is the number of each battery in the battery pack, and the reasonable capacity of each battery can be obtained by comparing the numerical values of C3 and C1 and averaging;
further, according to the temperature monitoring recorder set in S1, the temperature change during the battery charging is recorded by the temperature monitoring recorder, and the value is P, so that the battery temperature at the end of the battery charging and discharging is recorded for the battery capacity and different test environment temperatures of the battery to be tested at a plurality of test environment temperatures;
furthermore, the temperature monitoring recorder is a novel recorder which is designed and produced according to actual requirements of various industrial fields and integrates multiple functions of displaying, processing, recording, integrating, alarming, power distribution and the like, the temperature monitoring recorder at most has 8 input channels, 2 analog quantity outputs and point isolation are adopted among the channels; can directly select to receive various thermocouple, thermal resistor, pressure transmitter, voltage and current signals, can carry out digital display and trend recording and digital recording on the measured signals, can simultaneously record scale values, time and curves of each signal on a paper lattice with the width of 100mm printed by the self, and prints channel numbers beside the track of each channel.
Embodiment 3, referring to fig. 1 to 2, the method for evaluating battery capacity according to the present invention specifically includes 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 from different types and brands according to a formula C which is T1 multiplied by I1, wherein C is battery capacity, I1 is charging current, and T1 is charging time, charging the single battery a, and recording the time used for charging;
s2, discharging the single battery a in S1 according to the formula C-I2 × T2, where C is the battery capacity, I2 is the discharge current, and T2 is the discharge time, discharging the single battery a, connecting the fully charged battery to the 500W bulb and the lamp holder through the power cord, and recording the time taken for the completion of the discharge by the timer;
s3, charging and discharging 3 times according to the steps in S1 and S2, and activating the single battery a in S1;
s4, according to the steps in S1 and S2, starting a timer, charging the single battery a by a charger, during which the input voltage is controlled by a transformer, the number of times of charging is recorded as M, the value range of M is recorded as 24 times, the value range of M is recorded as T1 × I1 according to the formula C, where 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 a discharging device composed of a 500W bulb, a lamp holder, a transformer and a power line, the number of times of discharging is recorded as N, the value range of N is recorded as 24 times, the value range of C is recorded as I2 × T2, where C is the battery capacity, I2 is the discharging current, and T2 is the discharging time, calculating the actual battery capacity, averaging to obtain the actual data, thereby charging the battery, Averaging the calculated capacities in the discharging process to obtain C1;
s5, selecting a battery pack for evaluation, wherein the battery pack consists of eight groups of single batteries which 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 the eight groups of single batteries are activated;
s6, charging the battery pack with a charger, during which the input voltage is controlled by a transformer, the number of charging times is denoted as M, the value range of M is 24 times, the actual battery capacity is calculated according to a formula C-T1 × I1, where C is the battery capacity, I1 is the charging current, T1 is the charging time, the actual data is obtained by averaging, the battery pack is discharged by a discharge device composed of a 500W bulb, a lamp holder, a transformer, and a power line, the number of discharging times is denoted as N, the value range of N is denoted as 24 times, the actual data is obtained by averaging according to a formula C-I2 × T2, where C is the battery capacity, I2 is the discharging current, and T2 is the discharging time, after the battery pack is discharged, the actual battery capacity is calculated, and the actual data is obtained by averaging, thereby obtaining C2 by averaging the capacities calculated in the battery charging and discharging processes;
s7, calculating the capacity of each battery in the battery pack according to the conditions that C3 is C2/L, C3 is the capacity of each battery in the battery pack, C2 is the total capacity measured by the battery pack, L is the number of each battery in the battery pack, and the reasonable capacity of each battery can be obtained by comparing the numerical values of C3 and C1 and averaging;
further, according to the temperature monitoring recorder set in S1, the temperature change during the battery charging is recorded by the temperature monitoring recorder, and the value is P, so that the battery temperature at the end of the battery charging and discharging is recorded for the battery capacity and different test environment temperatures of the battery to be tested at a plurality of test environment temperatures;
furthermore, the temperature monitoring recorder is a novel recorder which is designed and produced according to actual requirements of various industrial fields and integrates multiple functions of displaying, processing, recording, integrating, alarming, power distribution and the like, the temperature monitoring recorder at most has 8 input channels, 2 analog quantity outputs and point isolation are adopted among the channels; can directly select to receive various thermocouple, thermal resistor, pressure transmitter, voltage and current signals, can carry out digital display and trend recording and digital recording on the detected signals, can simultaneously record scale values, time and curves of each signal on a paper grid with the width of 100mm printed by the self, and prints channel numbers beside the track of each channel, belongs to the prior art, and is not repeated.
The using process of the invention is as follows:
1. testing data, namely performing discharge tests on batteries of different brands and models, collecting the test data, or acquiring the 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 voltage and current data of the whole group;
4. the capacity of a single battery can be calculated;
5. battery capacity, which can be calculated;
in the whole process, a test data training and test data calculation model is used, 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 only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solution described above. Therefore, any simple modifications or equivalent substitutions made in accordance with the technical solution of the present invention are within the scope of the claims of 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, wherein the single battery A can be selected from different types and brands according to a formula C which is T1 multiplied by I1, wherein C is battery capacity, I1 is charging current, and T1 is charging time, charging the single battery a, and recording the time used for charging;
s2, discharging the single battery a in S1 according to the formula C-I2 × T2, where C is the battery capacity, I2 is the discharge current, and T2 is the discharge time, discharging the single battery a, connecting the fully charged battery to the 500W bulb and the lamp holder through the power cord, and recording the time taken for the completion of the discharge by the timer;
s3, charging and discharging 3 times according to the steps in S1 and S2, and activating the single battery a in S1;
s4, according to the steps in S1 and S2, starting a timer, charging the single battery a by a charger, during which the input voltage is controlled by a transformer, the number of times of charging is recorded as M, the value range of M is 6-24 times, the formula C-T1 × I1, where 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 a discharging device composed of a 500W bulb, a lamp holder, a transformer and a power line, the number of times of discharging is recorded as N, the range of N is 6-24 times, the formula C-I2 × T2, where C is the battery capacity, I2 is the discharging current, T2 the discharging time, calculating the actual battery capacity after discharging the single battery a, averaging to obtain the actual data, thereby charging the battery, Averaging the calculated capacities in the discharging process to obtain C1;
s5, selecting a battery pack for evaluation, wherein the battery pack consists of eight groups of single batteries which 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 the eight groups of single batteries are activated;
s6, charging the battery pack by using a charger, during which an input voltage is controlled by a transformer, a charging frequency is recorded as M, a value range of M is 6-24 times, a battery capacity is recorded as T1 × I1, I1 is a charging current, T1 is a charging time, an actual battery capacity is calculated, an average value is obtained, actual data is obtained, the battery pack is discharged by using a discharge device composed of a 500W bulb, a lamp holder, a transformer, and a power line, a discharging frequency is recorded as N, a value range of N is recorded as 6-24 times, a value range of I2 × T2 is recorded as C is a battery capacity, I2 is a discharging current, and a T2 discharging time, after the battery pack is discharged, an actual battery capacity is calculated, an average value is obtained, and thus the capacity calculated in the battery charging and discharging processes is averaged, to yield C2;
s7, calculating the capacity of a single battery in the battery pack according to the C3-C2/L, C3 the capacity of the single battery in the battery pack, C2 the total capacity measured by the battery pack, L the number of the single battery in the battery pack, calculating the reasonable capacity of the single battery by comparing the numerical values of C3 and C1, outputting a package data calculation model through data input for each brand and model of battery to enable the package data calculation model to output the pack capacity and the capacity of the single battery, wherein the number of calculation nodes and the weight can be multiple and can be multiple layers; the encapsulated data calculation model output may be placed outside the data calculation model, or encapsulated into a model containing other data, or may not be encapsulated.
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 is recorded by the temperature monitoring recorder, and the value is P, so that the battery temperature at the end of the battery charging and discharging is recorded for the battery capacity and different test environment temperatures of the battery to be measured 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 a novel recorder designed and produced according to actual requirements of various industrial fields and integrates multiple functions of displaying, processing, recording, integrating, alarming, power distribution and the like, the temperature monitoring recorder at most has 8 input channels, 2 analog quantity outputs and point isolation are adopted among the channels; can directly select to receive various thermocouple, thermal resistor, pressure transmitter, voltage and current signals, can carry out digital display and trend recording and digital recording on the measured signals, can simultaneously record scale values, time and curves of each signal on a paper lattice with the width of 100mm printed by the self, and prints channel numbers beside the track of each channel.
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