A System for State-of-health Diagnosis of Lead-acid Batteries Integrated with a Battery Charger

Telles B. Lazzarin; Ivo Barbi

doi:10.18618/REP.2012.1.401408

Authors

Telles B. Lazzarin Federal Institute of Santa Catarina (IFSC), Florianópolis - SC, Brazil
Ivo Barbi Federal University of Santa Catarina (UFSC), Florianópolis - SC, Brazil

DOI:

https://doi.org/10.18618/REP.2012.1.401408

Keywords:

Battery Charger, Impedance Measurement, Lead-Acid Battery, Stage-of-Health

Abstract

This paper reports a theoretical and experimental study on a proposal for a lead–acid battery charger applied in UPS, which has an integrated on-line test system to determine the state-of-health (SoH) of the batteries. The charger control structure is designed to ensure an appropriate charge for every battery in the pack. The battery evaluation system is based on historical analysis of the periodic measurements, such as internal impedance, DC voltage and operation temperature, performed for each battery. The periodic monitoring of these parameters provided by the integration of systems eliminates the disadvantages of online tests and thus allows the user to analyze the batteries adequately. The structure was experimentally verified on a prototype, where the battery SoH diagnosis system was integrated with a 1.5 kW battery charger. The system was designed for a bank of sixteen batteries associated in series.

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Author Biographies

Telles B. Lazzarin, Federal Institute of Santa Catarina (IFSC), Florianópolis - SC, Brazil

was born in Criciúma, Santa Catarina, Brazil, in 1979. He received the B.S. degree in electrical engineering and the M.S. and Ph.D. degrees from the Federal University of Santa Catarina (UFSC), Florianópolis, Brazil, in 2004, 2006, and 2010, respectively. He is currently a Professor in Federal Institute of Santa Catarina (IFSC). He is a member of the Brazilian Power Electronic (SOBRAEP) and a member of the IEEE Society.

Ivo Barbi, Federal University of Santa Catarina (UFSC), Florianópolis - SC, Brazil

was born in Gaspar, Santa Catarina, Brazil, in 1949. He received the B.S. and M.S. degrees in electrical engineering from the Federal University of Santa Catarina (UFSC), Florianópolis, Brazil, in 1973 and 1976, respectively, and the Dr.Ing. degree from the Institut National Polytechnique of Toulouse, Toulouse, France, in 1979. He founded the Brazilian Power Electronics Society (SOBRAEP) and the Institute of Power Electronics (INEP), UFSC. He is currently a Professor with INEP and the Leader of the power electronics program of UFSC.

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