Design and Optimization of Three-Phase Dual-Active-Bridge Converters for Electric Vehicle Charging Stations

Duy-Dinh Nguyen, Ngoc-Tam Bui and Kazuto Yukita
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Duy-Dinh Nguyen: Aichi Institute of Technology, Toyota 470-0356, Japan
Ngoc-Tam Bui: Hanoi University of Science and Technology, Hanoi 100803, Vietnam
Kazuto Yukita: Aichi Institute of Technology, Toyota 470-0356, Japan

Energies, 2019, vol. 13, issue 1, 1-17

Abstract: In this paper, design and optimization method of a three-phase dual-active-bridge DC/DC converter is discussed. Three single phase transformers connected in star-star configuration were designed with large leakage inductance aiming to eliminate the need for external inductors. Switching frequency, peak flux density, number of turns, number of layers, etc., were optimized using non-linear programming technique for minimizing the overall converter loss. Experimental results on a 10 kW prototype show that the optimized converter can operate efficiently an efficacy of up to 98.65% and a low-temperature rise of less than 70 degrees Celsius on both transformers and semiconductor devices.

Keywords: three-phase dual-active-bridge converter; nonlinear programming; inequality constraints; genetic algorithm; inductor-integrated transformer (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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