Research on dual Buck/Boost integrated three-port bidirectional DC/DC converter

Author

Xiaofeng Sun ; Feilong Liu ; Liangliang Xiong ; Baocheng Wang

Author_Institution

Coll. of Electr. Eng., Yanshan Univ., Qinhuangdao, China

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

6

Abstract

Dual Buck/Boost integrated three-port bidirectional DC/DC converter that this paper researches combines the conventional dual active bridge (DAB) and two bidirectional Buck/Boost circuits. The input current ripple is minimized due to interleaving operation of the two input inductors. Besides, bidirectional power flow capability between any two ports can be easily achieved with phase-shift plus PWM control. The operation principle and steady-state characteristic are analyzed, and the ZVS constraints for different operation conditions are explored in detail. Finally, both correctness of theoretical analysis and feasibility of the converter are verified with experimental results of the built 300W prototype.

Keywords

DC-DC power convertors; inductors; load flow; optimal control; pulse width modulation; zero voltage switching; ZVS constraints; bidirectional buck-boost circuits; bidirectional power flow capability; dual active bridge; dual buck-boost integrated three-port bidirectional DC/DC converter; input current ripple; input inductors; interleaving operation; optimal control; power 300 W; steady-state characteristic; theoretical analysis; with phase-shift plus PWM control; Bridge circuits; Inductance; Junctions; Ports (Computers); Power generation; Steady-state; Zero voltage switching; Bidirectional converters; dual active bridge; phase-shift plus PWM control; three-port dc-dc converter; zero-voltage-switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6941114

Filename

6941114