State-of-charge indication for portable applications

V. Pop, H.J. Bergveld, P.H.L. Notten, P.P.L. Regtien

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

20 Citaten (Scopus)
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The known methods of state-of-charge (SoC) indication in portable applications are not accurate enough under all practical conditions. The method presented in this paper aims at designing and testing an SoC indication system capable of predicting the remaining capacity of the battery and the remaining run-time with an accuracy of 1 minute or better under all realistic user conditions, including a wide variety of load currents and a wide temperature range. The basis of the proposed algorithm is current measurement and integration during charge and discharge state and voltage measurement during equilibrium state. One of the main problems in designing an accurate SoC indication system is aging of the battery. A simple method of adapting the maximum battery capacity used in the system with the aging effects is presented in this paper. A first set of experimental results shows the effectiveness of our novel approach for improving the accuracy of the SoC indication.
Originele taal-2Engels
TitelProceedings of the IEEE International Symposium on Industrial Electronics, ISIE 2005, 20-23 June 2005, Dubrovnik, Croatia
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
ISBN van geprinte versie0-7803-8738-4
StatusGepubliceerd - 2005

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