State-of-Charge Indication in Portable Applications


Share/Save/Bookmark

Pop, V. and Bergveld, H.J. and Notten, P.H.L. and Regtien, P.P.L. (2005) State-of-Charge Indication in Portable Applications. In: IEEE International Symposium on Industrial Electronics, ISIE 2005, 20-23 June 2005, Dubrovnik, Croatia (pp. pp. 1007-1012).

open access
[img]
Preview
PDF
194kB
Abstract: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.
Item Type:Conference or Workshop Item
Copyright:© 2005 IEEE
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:
Link to this item:http://purl.utwente.nl/publications/73684
Official URL:http://dx.doi.org/10.1109/ISIE.2005.1529061
Export this item as:BibTeX
EndNote
HTML Citation
Reference Manager

 

Repository Staff Only: item control page

Metis ID: 229036