A New Modulation Method for a Bidirectional Isolated Three-Phase AC/DC Dual-Active-Bridge Converter to Realize Higher Efficiency in Wide Output Voltage Range

This paper presents a new modulation method for a bidirectional isolated three-phase AC/DC Dual-Active-Bridge (DAB) converter to realize higher efficiency in wide output voltage range. The proposed modulation method realize the bidirectional power flow control with Zero Voltage Switching (ZVS) in al...

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Bibliographic Details
Published in2018 IEEE Energy Conversion Congress and Exposition (ECCE) pp. 592 - 598
Main Authors Shigeuchi, Koji, Sakuma, Kensuke, Xu, Jin, Shimosato, Noboru, Sato, Yukihiko
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2018
Subjects
AC-DC power converters
Bidirectional power flow
Dual-Active-Bridge
Energy conversion
high frequency transformer
isolated AC/DC converter
Phase modulation
Prototypes
Switches
wide output voltage range
Zero voltage switching
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Summary:This paper presents a new modulation method for a bidirectional isolated three-phase AC/DC Dual-Active-Bridge (DAB) converter to realize higher efficiency in wide output voltage range. The proposed modulation method realize the bidirectional power flow control with Zero Voltage Switching (ZVS) in all switching devices and low conduction losses by using 5 level PWM and PSM (Phase Shift Modulation). Experimental results employing a 10kW prototype converter using SiC-MOSFETs verifies the effectiveness of the proposed method.
ISSN:2329-3748
DOI:10.1109/ECCE.2018.8558345