Performance and losses analysis of charging and discharging mode of a bidirectional DC/DC fullbridge converter using PWM switching pattern

Author

Erfani, Mehdi Javdani ; Thiringer, Torbjörn ; Haghbin, Saeid

Author_Institution

Div. of Electr. Power Eng., Chalmers Univ. of Technol., Gothenburg, Sweden

fYear

2011

Firstpage

1

Lastpage

6

Abstract

Bi-directional isolated on-board chargers are potential options in grid-connected vehicle applications in the future smart grid environment. For a two-stage bi-directional on-board charger consisting of an AC/DC converter and an isolated DC/DC converter, performance analysis has been conducted for the DC/DC stage. The DC/DC converter has full-bridge topology where the loss analysis has been done for different switching devices, transformer and inductor and for different operating points in both directions. A robust controller is designed for DC/DC converter to prevent the battery voltage overshoot. This DC/DC stage has a high efficiency figure, around 95%, in both battery charging and battery to the grid power transfer modes.

Keywords

AC-DC power convertors; DC-DC power convertors; PWM power convertors; battery chargers; hybrid electric vehicles; power transformers; smart power grids; switching convertors; AC/DC converter; PWM switching pattern; battery charging; battery voltage overshoot; bidirectional DC/DC fullbridge converter; bidirectional isolated onboard chargers; discharging mode; full-bridge topology; grid power transfer modes; grid-connected vehicle; inductor; smart grid environment; switching devices; transformer; Batteries; DC-DC power converters; Inductors; Insulated gate bipolar transistors; MOSFETs; Schottky diodes; Switches; Bi-directioanl; Boost converter; Buck converter; DC/DC converter; Isolated on-board charger;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicle Power and Propulsion Conference (VPPC), 2011 IEEE

Conference_Location

Chicago, IL

ISSN

Pending

Print_ISBN

978-1-61284-248-6

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/VPPC.2011.6043141

Filename

6043141