Experimental Validation of 40 kW EV Charger Based on Vienna Rectifier and Series-Resonant Dual Active Bridge

Grzegorz Wrona, Mariusz Zdanowski, Przemysław Trochimiuk (), Jacek Rąbkowski and Radosław Sobieski
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Grzegorz Wrona: Institute of Control and Industrial Electronics, Warsaw University of Technology, 00-662 Warsaw, Poland
Mariusz Zdanowski: Institute of Control and Industrial Electronics, Warsaw University of Technology, 00-662 Warsaw, Poland
Przemysław Trochimiuk: Institute of Control and Industrial Electronics, Warsaw University of Technology, 00-662 Warsaw, Poland
Jacek Rąbkowski: Institute of Control and Industrial Electronics, Warsaw University of Technology, 00-662 Warsaw, Poland
Radosław Sobieski: Markel Sp. z o. o, 05-500 Piaseczno, Poland

Energies, 2023, vol. 16, issue 15, 1-18

Abstract: This work presents the experimental validation of a 40 kW electric vehicle (EV) charger. The proposed system comprises two 20 kW modules connected in parallel at the input and output. Each module has two stages—as a grid converter Vienna Rectifier (VR) was chosen, and as an isolated DC/DC stage, two Series-Resonant Dual-Active-Bridges (SRDABs) in input-series-output-parallel (ISOP) configurations were applied. The AC/DC and DC/DC stages were enclosed in 2U rack standard housing. A bipolar DC-link with ±400 V DC voltage was employed to connect both stages of the charger module while the charger’s output is dedicated to serving 800 V batteries. VRs operated at 66 kHz switching frequency and the SRDABs operated at 100 kHz. The converters used in the charger structure were based on silicon carbide (SiC) power devices. The description and parameters of the built hardware prototypes of both—AC/DC and DC/DC—converters are provided. Moreover, the experimental validation of each stage and the whole charging system, including oscilloscope waveforms and power analyzer measurements at nominal power, are included. Such a configuration enables energy conversion with high efficiency without a negative impact on the grid and high-quality grid waveforms.

Keywords: EV charger; rectifier; resonant converter; power conversion; silicon carbide (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: 2023
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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