TY - GEN
T1 - A Bus-Based Battery Equalization via Modified Isolated Cuk Converter Governed by Adaptive Control
AU - Zhong, Hao
AU - Li, Jianwei
AU - Wang, Ya Xiong
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/11
Y1 - 2019/11
N2 - Active equalization systems require balancing current regulation to further improve balancing efficiency and battery cycle life. This paper focuses on an adaptive control strategy for a battery equalization system based on modified isolated Cuk converter. Firstly, the analysis and modeling of the modified isolated Cuk-based equalizer are presented, and then the development of the adaptive sliding-mode control (SMC) scheme is proposed. The designed controller is verified through testing transient response, reference current variation and load change under continuous conduction mode. Compared with a traditional SMC, the proposed adaptive control has strongly ability to cope with the external disturbance and system parameters variation. A bus-based battery equalization system for five cells in series with an unbalanced state-of-charge (SOC) 0.75, 0.90, 0.45, 0.80 and 0.67 is performed to test the proposed control method. The simulation results indicate that the battery pack reaches to a balanced state in 712 sec.
AB - Active equalization systems require balancing current regulation to further improve balancing efficiency and battery cycle life. This paper focuses on an adaptive control strategy for a battery equalization system based on modified isolated Cuk converter. Firstly, the analysis and modeling of the modified isolated Cuk-based equalizer are presented, and then the development of the adaptive sliding-mode control (SMC) scheme is proposed. The designed controller is verified through testing transient response, reference current variation and load change under continuous conduction mode. Compared with a traditional SMC, the proposed adaptive control has strongly ability to cope with the external disturbance and system parameters variation. A bus-based battery equalization system for five cells in series with an unbalanced state-of-charge (SOC) 0.75, 0.90, 0.45, 0.80 and 0.67 is performed to test the proposed control method. The simulation results indicate that the battery pack reaches to a balanced state in 712 sec.
KW - adaptive control
KW - balancing strategy
KW - battery
KW - modified isolated Cuk converter
KW - state-of-charge (SOC)
UR - http://www.scopus.com/inward/record.url?scp=85080101672&partnerID=8YFLogxK
U2 - 10.1109/CAC48633.2019.8996984
DO - 10.1109/CAC48633.2019.8996984
M3 - Conference contribution
AN - SCOPUS:85080101672
T3 - Proceedings - 2019 Chinese Automation Congress, CAC 2019
SP - 2824
EP - 2828
BT - Proceedings - 2019 Chinese Automation Congress, CAC 2019
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2019 Chinese Automation Congress, CAC 2019
Y2 - 22 November 2019 through 24 November 2019
ER -