Title :
An improved control strategy for the charge equalization of lithium ion battery
Author :
Chen, Min ; Zhang, Zhe ; Feng, Zhuomin ; Chen, Jingjing ; Qian, Zhaoming
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
Charge equalization is important to reduce the damage and improve the lifetime of the battery. An improved control strategy of the equalization circuit is presented in this paper. The over-equalization technique has been utilized to shorten the equalization time about 25%. The hysteresis control is also been used to improve the robustness of the system. The simulation and prototype experimental results have proved the validity and reliability of the proposed control strategy.
Keywords :
battery chargers; control nonlinearities; hysteresis; lithium; robust control; secondary cells; charge equalization; equalization circuit; hysteresis control; lithium ion battery; Batteries; Control systems; Equivalent circuits; Hysteresis; Inductors; Lithium; Pulse width modulation; Robust control; Switches; Switching circuits; Lithium-ion battery; SOC; equalization; hysteresis control;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2009. APEC 2009. Twenty-Fourth Annual IEEE
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4244-2811-3
Electronic_ISBN :
1048-2334
DOI :
10.1109/APEC.2009.4802653
