State of health determination: Two pulse load test for a VRLA battery

  • M. Coleman
  • , C. K. Lee
  • , W. G. Hurley

Research output: Chapter in Book or Conference Publication/ProceedingConference Publicationpeer-review

22 Citations (Scopus)

Abstract

State of Health (SOH) is an important characteristic in determining the overall profile of a battery. SOH is a measure of the remaining full charge capacity of a battery with respect to its nominal or rated capacity. As a battery ages and is continuously charged and discharged, the chemical composition starts to degrade. Sulphation of the plates starts to occur and the condition of the battery deteriorates which leads to a decrease in capacity. SOH determination can aid in the optimisation of the battery and prevent the battery being over charged and over discharged. This paper describes a novel two-pulse load test to determine the SOH of a Valve Regulated Lead Acid (VRLA) battery. The measurement of the change in battery terminal voltage (AV) in the second pulse will alter as the battery ages in relation with the change in the maximum available capacity and this in turn allows the determination of SOH. Experimental validation of this new methodology is described in detail in the paper.

Original languageEnglish
Title of host publication37th IEEE Power Electronics Specialists Conference 2006, PESC'06
DOIs
Publication statusPublished - 2006
Event37th IEEE Power Electronics Specialists Conference 2006, PESC'06 - Jeju, Korea, Republic of
Duration: 18 Jun 200622 Jun 2006

Publication series

NamePESC Record - IEEE Annual Power Electronics Specialists Conference
ISSN (Print)0275-9306

Conference

Conference37th IEEE Power Electronics Specialists Conference 2006, PESC'06
Country/TerritoryKorea, Republic of
CityJeju
Period18/06/0622/06/06

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