Lead acid battery service life prediction method

A lead-acid battery, life prediction technology, applied in the direction of lead-acid batteries, measuring electricity, measuring devices, etc., can solve problems such as life and production safety hazards, and achieve the effect of easy operation and high precision

Inactive Publication Date: 2017-05-10
STATE GRID LIAONING ELECTRIC POWER RES INST +2
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  • Abstract
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Problems solved by technology

[0003] Traditional monitoring of lead-acid batteries can only use measuring instruments to test their voltage, current, internal resistance, temperature and capacity, and cannot predict the remaining operating cycle life of the battery in this environment through real-time monitoring parameters
The running lead-acid battery can only be replaced when an accident occurs, or it is replaced blindly, which is a passive replacement of the battery, which brings safety hazards to life and production

Method used

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Embodiment Construction

[0040] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the drawings in the embodiments of the present invention:

[0041] Examples such as Figure 1-Figure 3 As shown, in this embodiment, it is assumed that 1 lead-acid battery operation performance removes the influence of physical damage factors; it is assumed that 2 lead-acid batteries can be charged in time after running and discharging, so as not to be affected by vulcanization; 400AH second-class valve-regulated lead Acid battery cells were used as research samples.

[0042] Step 1: Analyze the factors that affect the performance degradation of lead-acid batteries, the relationship between performance degradation and changes in various operating parameters, and determine the parameters that affect the performance degradat...

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Abstract

The invention discloses a lead acid battery service life prediction method. The lead acid battery service life prediction method comprises following steps of obtaining the discharge electric quantity of a battery to be predicted when the a lead acid battery works in different environments, and working out the attenuation ratio of the current battery capacity; working out the practical application invalidation coefficient of the lead acid battery to be predicted according to the attenuation ratio, furthermore establishing an invalidation average speed model of the battery with the invalidation coefficient; setting the self-learning battery state-of-charge to be equal to the original amount, and setting that when the battery invalidation coefficient is a constant, a least square support vector machine LS-SVM decision function is obtained according to the structural risk minimization principle and a least square support vector machine; wherein a kernel function of K(xi, xj) is an inverse function of an exponential function, employing internal operation, solving a regression prediction function, substituting experimental data into the above formula to obtain a plurality of a, b values of the battery to be detected; and substituting a, b values which are subjected to error optimization into a battery residual life prediction model to obtain the service life of the battery.

Description

technical field [0001] The invention relates to a method and system for detecting the dynamic life of a lead-acid storage battery. Involving patent classification number, G01 Measurement; Test G01R Measuring electrical variables; Measuring magnetic variables; G01R31 / 00 Test apparatus for electrical properties; Detection apparatus for electrical faults; G01R31 / 36 Instruments for testing the electrical condition of accumulators or batteries, such as for testing life or state of charge. Background technique [0002] At present, various lead-acid batteries are widely used in life and production, and have become an indispensable part of today's society. In the process of using the battery, it is often necessary to know the actual application life of the battery. Therefore, a device that can predict the simple application life of the battery is needed. In the actual environment, the battery activity parameters are collected and processed within a period to predict the remaining a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36H01M10/06
CPCG01R31/382H01M10/06Y02E60/10
Inventor 王莉杨永辉张军阳王芮琳杜彦强邵峰薛诗萌
Owner STATE GRID LIAONING ELECTRIC POWER RES INST
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