Preliminary method for surveying the state of batteries ageing in isolated PV systems

Authors

  • A. López Agüera Department of Particle Physics & Galician Institute of High Energy Physics Author
  • E. Lorenzo Institute of Solar Energy Polytechnic University of Madrid Author
  • Rute Cortizo Department of Particle Physics & Galician Institute of High Energy Physics Author
  • I. Rodriguez-Cabo Institute of Solar Energy Polytechnic University of Madrid Author

DOI:

https://doi.org/10.24084/repqj05.292

Keywords:

Energy storage, batteries, ageing, monitoring techniques, online diagnosis

Abstract

A battery ageing estimator based on the observed voltage distributions over a one month timescale has been defined and experimentally verified at different set-ups: the 450 PV-stand alone systems operating at the Pierre Auger Observatory and the 40 meteorological stations of Meteo Galicia. The systematic consideration of this indicator has allowed for the detection of prematurely ageing batteries, before they cause a lack of energy supply. This paves the way for a rather simple but still very effective surveillance of the state of health of stand-alone PV systems.

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Published

2024-01-12

Issue

Vol. 5 No. 1 (2007)

Section

Articles