Design and optimization of three-phase dual-active-bridge converters for electric vehicle charging stations

Duy Dinh Nguyen, Ngoc Tam Bui, Kazuto Yukita

Research output: Contribution to journalArticle

1 Citation (Scopus)

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.

Original languageEnglish
Article number150
JournalEnergies
Volume13
Issue number1
DOIs
Publication statusPublished - 2019 Dec 27

Keywords

  • Genetic algorithm
  • Inductor-integrated transformer
  • Inequality constraints
  • Nonlinear programming
  • Three-phase dual-active-bridge converter

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Control and Optimization
  • Electrical and Electronic Engineering

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