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Energies 2016, 9(7), 493; doi:10.3390/en9070493

An Integrated Multifunctional Bidirectional AC/DC and DC/DC Converter for Electric Vehicles Applications

National Engineering Laboratory for Electric Vehicles, Beijing Institute of Technology, Beijing 100081, China
Author to whom correspondence should be addressed.
Academic Editor: King Jet Tseng
Received: 1 March 2016 / Revised: 14 June 2016 / Accepted: 22 June 2016 / Published: 28 June 2016
(This article belongs to the Special Issue Advanced Electrification for Transportation and Built Environment)


This paper presents an on-board vehicular battery charger that integrates bidirectional AC/DC converter and DC/DC converter to achieve high power density for application in electric vehicles (EVs). The integrated charger is able to transfer electrical energy between the battery pack and the electric traction system and to function as an AC/DC battery charger. The integrated charger topology is presented and the design of passive components is discussed. The control schemes are developed for motor drive system and battery-charging system with a power pulsation reduction circuit. Simulation results in MATLAB/Simulink and experiments on a 30-kW motor drive and 3.3-kW AC/DC charging prototype validate the performance of the proposed technology. In addition, power losses, efficiency comparison and thermal stress for the integrated charger are illustrated. The results of the analyses show the validity of the advanced integrated charger for electric vehicles. View Full-Text
Keywords: electric vehicle; integrated bidirectional charger; AC/DC converter; DC/DC converter electric vehicle; integrated bidirectional charger; AC/DC converter; DC/DC converter

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Pan, L.; Zhang, C. An Integrated Multifunctional Bidirectional AC/DC and DC/DC Converter for Electric Vehicles Applications. Energies 2016, 9, 493.

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