@inproceedings{5290af780c474e929e65222a4b033a9b,
title = "Securing Full-load-range Zero Voltage Switching for A Dual Active Bridge Based Electric Vehicle Charger",
abstract = "Dual-active-bridge (DAB) circuit is an excellent candidate for a high-efficiency, high-power-density and bidirectional electric vehicle charger. Unlike other circuits employing resonant inductors and capacitors, DAB minimizes the usage of passive components. The challenge, however, lies in difficulty of securing zero voltage switching (ZVS) at light-to-medium load. This is utmost important not only to the efficiency but also eliminating the bridge-switch crosstalk during the hard switching-on thereby enhancing the system reliability. Systematically integrating SPS, dual-phase-shift (DPS) and triple-phase-shift (TPS) to secure full-load-range ZVS in EV chargers has not been seen and is the focus of this paper. This paper plots the ZVS boundary for the full-load range, categorizes all operations into eight modes and proposes a smooth transition among SPS, DPS and TPS for a 20kW EV battery charger. Experimental results on a SiC-based charger validated its effectiveness and the smooth transition for the output voltage of 200\textasciitilde{}450VDC and 0\textasciitilde{}20kW.",
keywords = "Zero-Voltage-Switching, battery charger., dual active bridges, phase-shift control, wide-bandgap device",
author = "Yu Yan and Hua Bai and Chuanchao Yang and Wangbao Wang",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 ; Conference date: 15-03-2020 Through 19-03-2020",
year = "2020",
month = mar,
doi = "10.1109/APEC39645.2020.9124231",
language = "English",
series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2067--2072",
booktitle = "APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition",
address = "United States",
}