Journal
ENERGIES
Volume 9, Issue 7, Pages -Publisher
MDPI
DOI: 10.3390/en9070493
Keywords
electric vehicle; integrated bidirectional charger; AC; DC converter; DC; DC converter
Categories
Funding
- International Cooperation Research Program of China [2015DFE72810]
- Higher School Discipline Innovation Intelligence Plan [B12022]
- Beijing Municipal Science and Technology Commission of China [Z121100006612006]
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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.
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