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

fYear

2014

fDate

23-25 April 2014

Firstpage

1

Lastpage

4

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Green Building and Smart Grid (IGBSG), 2014 International Conference on

Conference_Location

Taipei

Type

conf

DOI

10.1109/IGBSG.2014.6835176

Filename

6835176