Title :
Advanced multi-winding transformer equalizer for electric vehicle battery system
Author :
Xue Tao ; Cheng Xi-ming ; Fang Yuan-qi ; Chen Zhuo
Author_Institution :
Nat. Eng. Lab. for Electr. Vehicle, Beijing Inst. of Technol., Beijing, China
Abstract :
In this paper, a charge equalization converter using multi-winding transformer for electric vehicle battery system is presented, and two balancing strategies named Top-balancing and Bottom-balancing are respectively proposed. In order to properly increase the equalizing current and protect the components from excessive current as well, the way to design the MOSFET drive circuit and system duty cycle is described. To verify the usefulness of the charge equalizer design method, several examples and experimental results are shown.
Keywords :
MOSFET circuits; battery powered vehicles; driver circuits; secondary cells; transformer windings; MOSFET drive circuit; advanced multiwinding transformer equalizer; balancing strategies; bottom-balancing; charge equalization converter; electric vehicle battery system; equalizing current; system duty cycle; top-balancing; Batteries; Circuit faults; Control systems; Equalizers; MOSFET; Threshold voltage; Windings; Active Balance; Electric Vehicle; Li-ion Battery; Voltage Equalization;
Conference_Titel :
Control Conference (CCC), 2013 32nd Chinese
Conference_Location :
Xi´an
