http://iet.metastore.ingenta.com
1887

Optimal charge equalisation control for series-connected batteries

Optimal charge equalisation control for series-connected batteries

For access to this article, please select a purchase option:

Buy article PDF
$19.95
(plus tax if applicable)
Buy Knowledge Pack
10 articles for $120.00
(plus taxes if applicable)

IET members benefit from discounts to all IET publications and free access to E&T Magazine. If you are an IET member, log in to your account and the discounts will automatically be applied.

Learn more about IET membership 

Recommend Title Publication to library

You must fill out fields marked with: *

Librarian details
Name:*
Email:*
Your details
Name:*
Email:*
Department:*
Why are you recommending this title?
Select reason:
 
 
 
 
 
IET Generation, Transmission & Distribution — Recommend this title to your library

Thank you

Your recommendation has been sent to your librarian.

Batteries play an important role in sustainable energy systems because the energy stored in batteries can be dispatched at any time. Series-connected batteries can furnish a load with higher voltage and consequently reduce the I 2 R loss during power conversion and transmission. However, if imbalanced voltage occurs, a battery with high state of charge (SOC) would react more drastically than that with lower SOC under both charging and discharging conditions. Imbalanced charge or discharge would give rise to potential damage to the battery and also shorten the battery life cycle. This study presents a modified charge equaliser (CE) along with an optimal charge equalisation algorithm (CEA). The proposed circuit scheme can distribute an imbalanced charge in a more efficient way without increasing additional circuit cost. To further expedite charge equalisation among a battery string, the activated CE duty ratio is fixed at the upper limits throughout the charge equalisation phase. An optimal CEA with a view towards maximising the final battery string voltage is developed to resolve the CE operating sequence and length. The proposed equalisation strategy is realised using a peripheral interface controller that uses a buck–boost converter as the CE. The experimental results confirm the performance of the proposed strategy.

References

    1. 1)
      • 1. Koutroulis, E., Kalaitzakis, K.: ‘Novel battery charging regulation system for photovoltaic applications’, IEE Proc. Electr. Power Appl., 2004, 151, (2), pp. 191197 (doi: 10.1049/ip-epa:20040219).
    2. 2)
      • 2. Nelson, J.P., Bolin, W.D.: ‘Basic and advances in battery systems’, IEEE Trans. Ind. Appl., 1995, 31, (2), pp. 419428 (doi: 10.1109/28.370294).
    3. 3)
      • 3. Cao, J., Schofield, N., Emadi, A.: ‘Battery balancing methods: a comprehensive review’. Proc. IEEE Vehicle Power and Propulsion Conf., 2008, pp. 16.
    4. 4)
      • 4. Moore, S.W., Schneider, P.J.: ‘A review of cell equalization methods for lithium ion and lithium polymer battery systems’. Proc. SAE World Congress, 2001, Paper 2001-01-0959.
    5. 5)
      • 5. Baughman, A.C., Ferdowsi, M.: ‘Double-tiered switched-capacitor battery charge equalization technique’, IEEE Trans. Ind. Electron., 2008, 55, (6), pp. 22272285 (doi: 10.1109/TIE.2008.918401).
    6. 6)
      • 6. Pascual, C., Krein, P.T.: ‘Switched capacitor system for automatic series battery equalization’. Proc. 12th Applied Power Electronics Conf., 1997, pp. 848854.
    7. 7)
      • 7. Park, H.-S., Kimi, C.E., Kim, C.-H., Moon, G.-W., Lee, J.-H.: ‘A modularized charge equalizer for an HEV lithium-ion battery string’, IEEE Trans. Ind. Electron., 2009, 56, (5), pp. 14641476 (doi: 10.1109/TIE.2009.2012456).
    8. 8)
      • 8. Kutkut, N.H., Wiegman, H.L.N., Divan, D.M., Novotny, D.W.: ‘Design considerations for charge equalization of an electric vehicle battery system’, IEEE Trans. Ind. Appl., 1999, 35, (1), pp. 2835 (doi: 10.1109/28.740842).
    9. 9)
      • 9. Kutkut, N.H., Wiegman, H.L.N., Divan, D.M., Novotny, D.W.: ‘Charge equalization for an electric vehicle battery system’, IEEE Trans. Aerosp. Electron. Syst., 1998, 34, (1), pp. 235245 (doi: 10.1109/7.640281).
    10. 10)
      • 10. Kutkut, N.H., Divan, D.M., Novotny, D.W.: ‘Charge equalization for series connected battery strings’, IEEE Trans. Ind Appl., 1995, 31, (3), pp. 562568 (doi: 10.1109/28.382117).
    11. 11)
      • 11. Hung, S.T., Hopkin, D.C., Mosling, C.R.: ‘Extension of battery life via charge equalization control’, IEEE Trans. Ind. Electron., 1993, 40, (1), pp. 96104 (doi: 10.1109/41.184826).
    12. 12)
      • 12. Chen, W.-L., Li, J.-F., Huang, B.-X.: ‘Design of an energy-saving charge equalization system’, Electr. Power Compon. Syst., 2011, 39, (15), pp. 16321646 (doi: 10.1080/15325008.2011.608769).
    13. 13)
      • 13. Li, J.-F., Chen, Y.-H., Chen, W.-L.: ‘Research of a charge equalization strategy for series-connected batteries’. Proc. 30th Power Engineering Conf., 2009, pp. 15.
    14. 14)
      • 14. Moo, C.S., Hsieh, Y.C., Tsai, I.S., Cheng, J.C.: ‘Dynamic charge equalization for series-connected batteries’, IEE Proc. Electr. Power Appl., 2003, 150, (5), pp. 501505 (doi: 10.1049/ip-epa:20030661).
    15. 15)
      • 15. Moo, C.S., Hsieh, Y.C., Tsai, I.S.: ‘Charge equalization for series-connected batteries’, IEEE Trans. Aerosp. Electron. Syst., 2003, 39, (2), pp. 704710 (doi: 10.1109/TAES.2003.1207276).
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-gtd.2013.0075
Loading

Related content

content/journals/10.1049/iet-gtd.2013.0075
pub_keyword,iet_inspecKeyword,pub_concept
6
6
Loading
This is a required field
Please enter a valid email address