Battery life measurement method based on internal resistance and voltage measurement

A measurement method, voltage measurement technology, applied in the direction of measuring electrical variables, measuring electricity, measuring resistance/reactance/impedance, etc., to improve safety and economy, intelligentize the detection and maintenance process, and reduce uncertain safety hazards Effect

Active Publication Date: 2016-07-13
SHANGHAI MINGHUA ELECTRIC POWER TECH & ENG +1
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to provide a battery life measurement method based on internal resistance and voltage measurement in order to overcome the above-mentioned defects in the prior art, so as to solve the current battery life measurement problem and make the detection and maintenance process intelligent and refined

Method used

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  • Battery life measurement method based on internal resistance and voltage measurement
  • Battery life measurement method based on internal resistance and voltage measurement

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Embodiment

[0026] Such as figure 1 and figure 2 As shown, a battery life measurement method based on internal resistance and voltage measurement includes the following steps:

[0027] 1) Obtain the battery voltage signal through the voltage sensor;

[0028] 2) When the voltage signal reaches the set voltage value of voltage up or down, trigger the measurement of the internal resistance of the battery. The set voltage value of the above voltage is the charging process, and the set voltage value of the voltage down is the discharge process;

[0029] 3) Judging the deviation between the measured internal resistance value and the calibration value curve to determine the battery life.

[0030] The process of generating the calibration value curve is as follows:

[0031] 11) For the uncalibrated battery, set the number of internal resistance measurement times, and the average value of the internal resistance of the battery obtained under the same conditions is used as the calibration value...

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Abstract

The invention relates to a battery life measurement method based on internal resistance and voltage measurement, comprising the following steps: 1) Obtaining a battery voltage signal through a voltage sensor; 2) When the voltage signal reaches a set voltage value of voltage up or down, Triggering the measurement of the internal resistance of the storage battery; 3) judging the deviation between the measured internal resistance and the calibration value curve to determine the life of the storage battery. Compared with the prior art, the invention has the advantages of solving the measurement problem of the current storage battery operating life, making the detection and maintenance process intelligent and refined.

Description

technical field [0001] The invention relates to a battery life measurement method, in particular to a battery life measurement method based on internal resistance and voltage measurement. Background technique [0002] In devices with built-in backup batteries such as uninterruptible power supplies (UPS), detection of battery life is particularly important in terms of maintenance and inspection. Generally speaking, the corrosion of the hydrogen-absorbing alloy of the negative electrode is the main reason for the deterioration of the life of the nickel-hydrogen battery. However, the main factors such as the operating temperature, the number of discharges, the elapsed time, and the magnitude of the load power during discharge are also many. . In this way, there are various factors for judging the lifetime, and it is very difficult to accurately judge the lifetime of the storage battery in use. [0003] The internal resistance value of the battery is one of the most effective ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/36G01R27/08
Inventor 张健杨帆徐昶支晓晨
Owner SHANGHAI MINGHUA ELECTRIC POWER TECH & ENG
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