Title :
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
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;
Conference_Titel :
Vehicle Power and Propulsion Conference (VPPC), 2011 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-61284-248-6
Electronic_ISBN :
Pending
DOI :
10.1109/VPPC.2011.6043141
