NDLI: Fuzzy logic-based state-of-health determination of lead acid batteries

Content Provider	IEEE Xplore Digital Library
Author	Singh, P. Reisner, D.
Copyright Year	2002
Description	Author affiliation: Villanova Univ., PA, USA (Singh, P.)
Abstract	Determining the state-of-health (SOH) of uninterruptible power supply (UPS) batteries using impedance measurements has been demonstrated by several researchers. One such approach uses single frequency impedance measurements, which may not be reliable under all circumstances. Another approach employs measurements over a wide frequency range and uses extracted equivalent circuit parameters to correlate with battery SOH. This is a computationally extensive approach and not easily incorporated into a low cost system. Over the last five years, Villanova University and US Nanocorp. have been jointly developing a patented fuzzy logic method for estimating the state-of-charge (SOC) and SOH of batteries. This methodology has proven to be both a simple and powerful means to model battery characteristics accurately and robustly. In this paper we describe how impedance measurements, combined with fuzzy logic data analysis have been used to estimate the SOH of lead acid batteries used in portable defibrillators. We also propose ways in which this approach may be extended to estimating the SOH of UPS batteries.
Sponsorship	Power Electron. Soc. IEEE
Starting Page	583
Ending Page	590
File Size	450826
Page Count	8
File Format	PDF
ISBN	0780375122
DOI	10.1109/INTLEC.2002.1048716
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-09-29
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fuzzy logic Uninterruptible power systems Impedance measurement Power system reliability Battery charge measurement Frequency measurement Equivalent circuits Costs State estimation Power system modeling
Content Type	Text
Resource Type	Article

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