Title :
Validation of single frequency Z measurement for standby battery state of health determination
Author :
Kiel, Martin ; Sauer, Dirk Uwe ; Turpin, Pierre ; Naveed, Mohamed ; Favre, Eric
Author_Institution :
Electrochem. Energy Conversion & Storage Syst. Group, RWTH Aachen Univ., Aachen
Abstract :
Impedance has been discussed for a long time as an indicator for the state of health (SOH) of lead-acid batteries for standby applications such as UPS systems. The research contains the analysis of the relation between capacity and impedance measurement at different frequencies. Several batteries of different manufacturers and capacity were aged systematically and the impedance measurements were done under similar conditions as in real UPS systems. Impedance measurements with the low cost device and full scale laboratory equipment and capacity tests have been performed periodically.
Keywords :
electric impedance measurement; power system measurement; uninterruptible power supplies; impedance measurement; power system monitoring; standby battery; state of health determination; uninterruptible power supplies; Aging; Battery charge measurement; Costs; Frequency measurement; Impedance measurement; Laboratories; Manufacturing; Performance evaluation; Testing; Uninterruptible power systems; Battery storage plants; Impedance Spectroscopy; Power system monitoring; SOH determination;
Conference_Titel :
Telecommunications Energy Conference, 2008. INTELEC 2008. IEEE 30th International
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-2055-1
Electronic_ISBN :
978-1-4244-2056-8
DOI :
10.1109/INTLEC.2008.4664020
