Title :
Implementation of a bidirectional three-phase dual-active-bridge DC converter with hybrid modulation for electric vehicle applications
Author :
Fu-Ming Ni ; Tzung-Lin Lee
Author_Institution :
Dept. Electr. Eng., Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
In this paper, the bidirectional three-phase dual-active-bridge DC converter with the hybrid modulation is implemented, to improve the light-load efficiency. Charging and discharging behaviors are controlled by the phase angle and the duty cycle of voltage applied on both sides of the transformer. The hybrid modulation and the experimental results of the converter are presented. A lab-scaled converter prototype with 48V/20AH LiFePO4 battery was established to validate effectiveness of the proposed modulation method.
Keywords :
DC-DC power convertors; battery powered vehicles; bridge circuits; electric vehicles; lithium compounds; modulation; secondary cells; voltage control; LiFePO4; bidirectional three-phase dual-active-bridge DC converter; duty cycle; electric vehicles; hybrid modulation; light-load efficiency; phase angle; secondary battery; voltage 48 V; voltage control; DC-DC power converters; Inductance; Phase modulation; Switches; Topology;
Conference_Titel :
Intelligent Green Building and Smart Grid (IGBSG), 2014 International Conference on
Conference_Location :
Taipei
DOI :
10.1109/IGBSG.2014.6835176
