Estimating the estate of charge of lead-acid batteries.

Authors

  • G.G. Demetino PPGM – Programa de pós-graduação em Mecatrônica Laboratório de Propriedades Óticas Author
  • I. M. Pepe Laboratório de Propriedades Óticas Instituto de Física, Universidade Federal da Bahia Author
  • V. L. Filardi PPGM – Programa de pós-graduação em Mecatrônica Laboratório de Propriedades Óticas Author
  • L. C. S. Soares Júnior Laboratório de Propriedades Óticas Instituto de Física, Universidade Federal da Bahia Author
  • C. E. T. Silva PPGM – Programa de pós-graduação em Mecatrônica Laboratório de Propriedades Óticas Author
  • G. P. Guedes Laboratório de Instrumentação e Energia Solar Departamento de Física, Universidade Estadual de Feira de Santana Author
  • J. G. Lima Brasílio Laboratório de Instrumentação e Energia Solar Departamento de Física, Universidade Estadual de Feira de Santana Author
  • D. Rey Rey Laboratorio de Aplicaciones Energetica Sostenibles Departamento de Física de Partículas, Universidad de Santiago de Compostela Author
  • A. L. Aguera. Laboratorio de Aplicaciones Energetica Sostenibles Departamento de Física de Partículas, Universidad de Santiago de Compostela Author
  • J. C. Anjos Centro Brasileiro de Pesquisas Físicas Author

DOI:

https://doi.org/10.24084/repqj10.607

Keywords:

State of charge, battery discharge, Modbus protocol

Abstract

A new system approach for battery discharge to estimate the state of charge of lead-acid batteries has been developed and tested. This new system is based on an industrial network that runs the Modbus Protocol with RTU format. Each unit includes an ID for communication in this network, its own power supply, a stable current supply for battery discharge and its own calibration curve for each channel at the analogical-digital converter. All parameters can be configured by the software supervisor. This system is able to discharge up to 16 batteries simultaneously and save voltage and current values for each unit. All information can be saved into a file that can be read simultaneously to the data acquisition. Thus, it is easier to have it integrated to a database and distributed on to a computing network system. This system will bring more information to the battery ageing estimator, based on the observed voltage distributions over one month. The Pierre Auger Observatory works with different set-ups for the 1600 PV-stand-alone systems. Therefore, a larger scale system capacity to test each battery unit a time has become necessary.

Published

2024-01-18

Issue

Section

Articles