Research on Active Equalization of Lithium Battery via SOC

Yun Gan Wang; Zhong Feng  Wang; J.L. Huang; Li Gang Li

doi:10.4028/www.scientific.net/AMM.556-562.2013

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 556-562Research on Active Equalization of Lithium Battery...

Research on Active Equalization of Lithium Battery via SOC

Abstract:

This paper presents an active equalization method for lithium battery via SOC. The high accuracy of SOC is promised by extended Kalman filter algorithm (EKF) based on the adaptive parameters equivalent-circuit model at all SOC region. Then a small size, low loss resonant soft-switching active equalization circuit is presented. That circuit combined with SOC do precisely balance the battery pack during charge and discharge processes, which can effectively improve the battery pack’s using life.

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Periodical:

Applied Mechanics and Materials (Volumes 556-562)

Pages:

2013-2016

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.556-562.2013

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Online since:

May 2014

Authors:

Yun Gan Wang*, Zhong Feng Wang, J.L. Huang, Li Gang Li

Keywords:

Active Equalization, EKF, Resonant Soft-Switching, SoC

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