Optimization of charge parameters for lead acid batteries used in photovoltaic systems
Benchetrite, D.
Mattera, F.
Perrin, M.
Martin, J.L.
Bach, O.
Le Gall, M.
Malbranche, P.
GENEC, CEA, Cadarache, France;
This paper appears in: Photovoltaic Energy Conversion, 2003. Proceedings of 3rd World Conference on
Publication Date: 12-16 May 2003
Volume: 3,
On page(s): 2408- 2410 Vol.3
ISSN:
ISBN: 4-9901816-0-3
INSPEC Accession Number: 8047649
Digital Object Identifier: 10.1109/WCPEC.2003.1305076
Current Version Published: 2004-06-28
Abstract
The lead acid batteries used in the photovoltaic systems are subjected to penalizing operating conditions. The recharge is usually badly controlled, depending on the weather conditions. This situation induces premature degradations of the electrodes, and consequently, a shorter lifetime. The management of the recharge of the photovoltaic lead acid batteries is a major issue for the optimization of their lifetime. Today, the management strategies are generally based on a voltmetric regulation, and appear unable to guarantee an optimal lifetime. More complex methods of end of recharge seem promising but have not been optimised or validated with comprehensive battery characterization. In this paper the parameters of an advanced management strategy have been studied and our results have proved that it presents real benefit compared to a simple voltmetric management.
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