Performance analysis of half bridge three-level full bridge bi-directional DC-DC converters

Author

Feng Zhao ; Cong Wang ; Ruiqi Dong ; Xiaokang Yang

Author_Institution

Sch. of Mech. Electron. Inf. Eng., China Univ. of Min. & Technol. (Beijing), Beijing, China

fYear

2014

fDate

5-8 Nov. 2014

Firstpage

1503

Lastpage

1508

Abstract

A novel topology of half bridge three-level full bridge bidirectional DC-DC converter is proposed. The configuration and operational principles of the novel converters with the dual-phase-shifting control were analyzed. The ZVS soft-switching range of the left three-level half bridge and the right H-bridge under different voltage conversion ratio were discussed. In order to improve the whole system efficiency, Based on the mathematical models of transmission power and backflow power, the equation describing the minimum backflow power under the given transmission power was formulated. The dual-phase-shifting optimized control strategy with the minimum backflow power for different given transmission power under ZVS soft- switching conditions were proposed. At last, the experimental results were presented to validate the theoretical analysis.

Keywords

DC-DC power convertors; bridge circuits; phase control; zero voltage switching; H-bridge; ZVS soft-switching range; backflow power; dual-phase-shifting control; half bridge three-level full bidirectional DC-DC converter; performance analysis; transmission power; voltage conversion ratio; zero voltage switching; Bidirectional control; Bridge circuits; Capacitance; DC-DC power converters; Soft switching; Switches; Zero voltage switching; H-bridge; ZVS soft-switching; dual-phase-shifting control; half bridge three-level; minimum backflow power;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Application Conference and Exposition (PEAC), 2014 International

Conference_Location

Shanghai

Type

conf

DOI

10.1109/PEAC.2014.7038088

Filename

7038088