98.2% Efficiency, Low Cost, 6.6-kW AC/DC Converter for HEV/EV On-Board Charger
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BERZAN, Vladimir, ERMURACHI, Iurie, LUCACHE, Dorin, ALBU, Mihai. 98.2% Efficiency, Low Cost, 6.6-kW AC/DC Converter for HEV/EV On-Board Charger. In: EPE 2018 - Proceedings of the 2018 10th International Conference and Expositions on Electrical And Power Engineering, 18-19 octombrie 2018, Iași. New Jersey, SUA: Institute of Electrical and Electronics Engineers Inc., 2018, Ediția a 10-a, pp. 791-796. ISBN 978-153865062-2. DOI: https://doi.org/10.1109/ICEPE.2018.8559641
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EPE 2018 - Proceedings of the 2018 10th International Conference and Expositions on Electrical And Power Engineering
Ediția a 10-a, 2018
Conferința "10th International Conference and Expositions on Electrical And Power Engineering"
Iași, Romania, 18-19 octombrie 2018

98.2% Efficiency, Low Cost, 6.6-kW AC/DC Converter for HEV/EV On-Board Charger

DOI: https://doi.org/10.1109/ICEPE.2018.8559641

Pag. 791-796

Berzan Vladimir1, Ermurachi Iurie1, Lucache Dorin2, Albu Mihai2
 
1 Institute of Power Engineering,
2 Gheorghe Asachi Technical University of Iasi
 
Disponibil în IBN: 3 iunie 2021


Rezumat

The paper examines a new structure of an AC/DC power supply for single-phase on-board chargers. The transfer of the AC power to the DC circuit is performed at high frequency (1-120 kHz). The transistors operate in a soft switching mode (ZCS) with a variable switching frequency. This reduces the switching power losses of the transistors. The charger architecture includes several identical functional modules which operate with phase shift in the input circuits. Thus, the value of the smoothing capacitor of the input filter can be reduced and also the power grid pollution with the current higher harmonics. Verification of the proposed solution was done by mathematical simulations and by testing a 1650W laboratory module prototype. The AC supply voltage can vary between 85-265V, and the DC output voltage between 250-450V. The resulted volume indicator of the converter is 4.2 kW/dm3. © 2018 IEEE.

Cuvinte-cheie
AC/DC converter, phase shift, power factor correction, single step conversion, soft switching