Title :
Application of bi-directional Z-Source in ultracapacitor-battery hybrid energy storage system for EV
Author :
Zipeng Liang ; Sideng Hu ; Yuan Liu ; Wuhua Li ; Xiangning He
Author_Institution :
Coll. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
In this paper, a new battery/ultracapacitor (UCs) hybrid energy storage system (HESS) based on bi-directional Z-Source converter is proposed for electric drive vehicles. Different from previous HESS, by using the bi-directional Z-source topology, extra dc-dc converter is no longer needed. The UCs have wide operation range and the cost of battery package and corresponding balance circuit is reduced. The control schematic, small signal modeling are presented. Both simulation and experiments are demonstrated to verify the effectiveness.
Keywords :
angular velocity control; battery powered vehicles; closed loop systems; invertors; machine vector control; permanent magnet machines; secondary cells; supercapacitors; synchronous motor drives; voltage control; bidirectional Z-source converter; control methods; electric vehicle; small signal model; ultracapacitor-battery hybrid energy storage system; Batteries; Bidirectional control; Integrated circuit modeling; Mathematical model; Switches; Topology; EV; Z-Source; hybrid energy storage;
Conference_Titel :
Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE
Conference_Location :
Charlotte, NC
DOI :
10.1109/APEC.2015.7104797
