NDLI: Three-winding transformer based asymmetrical dual active bridge converter

Content Provider	IET Digital Library
Author	Jakka, Venkat Nag Someswar Rao Shukla, Anshuman Demetriades, Georgios
Abstract	A three-winding transformer based asymmetrical dual active bridge (TWT-ADAB) isolated dc–dc converter is proposed in this study. The converter comprises of three stages: primary, isolation, and secondary. The primary stage consists of an H-bridge converter, the isolation stage consists of a three-winding transformer with one primary and two secondary windings, and the secondary stage consists of a bridge converter having three legs and six active switches. The load current is shared equally by the secondary windings of the transformer resulting in reduced currents through switches of the secondary converter. Therefore, the turn-off losses of these switches get reduced. Further, zero voltage switching turn-on can be achieved for all switches of the TWT-ADAB converter to reduce the switching losses. A detailed analysis of the modelling and control of the proposed TWT-ADAB converter is presented. The theoretical analysis is verified using the simulation and experimental results. These demonstrated results show that the proposed TWT-ADAB converter offers wider ranges of the output voltages and powers and higher efficiency as compared with the existing dual bridge isolated dc–dc converters. Therefore, it can be an eminent structure for high-power isolated dc–dc power conversion applications.
Starting Page	2377
Ending Page	2386
Page Count	10
ISSN	17554535
Volume Number	9
e-ISSN	17554543
Issue Number	Issue 12, Oct (2016)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-pel/9/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2015.0937
Journal	IET Power Electronics
Publisher Date	2016-10-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Asymmetrical Dual Active Bridge Converter DC-DC Power Converter DC–DC Converter H-bridge Converter Load Current Power Conversion Power Electronics Power Supply Supervisory Circuit Three Winding Transformer Transformer And Reactors Transformer Windings TWT-ADAB Converter Zero Voltage Switching
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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