Performance and Losses Analysis of Charging and Discharging Mode of a Bidirectional DC/DC Fullbridge Converter Using PWM Switching Pattern
Paper in proceeding, 2011

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.

DC/DC converter

Boost converter


Buck converter

Isolated on-board charger


Mehdi Javdani Erfani

Power grids and Components

Torbjörn Thiringer

Chalmers, Energy and Environment, Electric Power Engineering

Saeid Haghbin

Chalmers, Energy and Environment, Electric Power Engineering

7th IEEE Vehicle Power and Propulsion Conference, VPPC 2011, Chicago, 6-9 September 2011

978-161284248-6 (ISBN)

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering





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