Abstract

The author present a new model  for the aging of a Lead-Acid battery which is based on the initial model of the Shepherd.The proposed model allows to predict temporal variations of the Shepherd coefficients and to control the deterioration of  battery parameters and  performances.The model validation has been realised by the recursive least square algorithm by using long term measurements under several socialisation.This study will improve the storage section of stand alone photovoltaic systems and reduce the overloads and deep discharges.

Keywords:Shepherd Model,Recursive Least Square Algorithm,Less Battery Storage System

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