Proceedings of The 4th International Conference on Modern Research in Science, Engineering and Technology
Design and Development of a Constant Current Constant Voltage Fast Battery Charger for Electric Vehicles
Abdulkarim Nasir, Mostafa S. Hamad and Ahmed K. Elshenawy
This article focuses on the design and development of a closed-loop DC-DC buck converter based battery charger for charging a plug-in electric vehicle using the constant-current and constant-voltage (CCCV) charging scheme. Three-phase grid supply voltage is rectified using a three-phase boost rectifier to feed the buck converter. The method proposed in this article help in realizing unity power factor operation and bi-directional power transfer capability of the rectifier. There are several control strategies like direct-power control (DPC), virtual flux oriented control (VFOC), voltage oriented control (VOC) and soon to control the rectifier to achieve a constant output voltage. The Voltage Oriented Control strategy is adopted to control the three phase rectifier based on high performance direct-quadrature‐coordinate controllers. The charger simulation has been done in MATLAB/SIMULINK. Verifiable simulation results are presented.
Keywords: battery charger; buck converter; electric vehicle; fast charging; three-phase rectifier.