Lead-Acid Battery Evaluation Based On Opencircuit Voltage Fluctuation Measurement
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The state of charge and the state of health are two crucial parameters of batteries. Current state of the art methods of their estimation include some as simple as measuring open circuit voltage, all the way to fuzzy logic estimation and constant online battery overview. Some main problems of such methods are either the length of single parameter evaluation cycle, or their inherent inaccuracy due to limitations in battery manufacture precision. This article proposes novel method of the lead-acid battery state of the health estimation, based on open circuit noise measurement. It reports the nature of changes in low frequency noise spectral density, that occur after catastrophic self-discharge failure or avalanche voltage drop in lead-acid batteries.
Document typePeer reviewed
Document versionFinal PDF
SourceProceedings of the 25st Conference STUDENT EEICT 2019. s. 685-689. ISBN 978-80-214-5735-5
- Student EEICT 2017