Wide Input Range Power Converters Using a Variable Turns Ratio Transformer

Ziwei Ouyang; Michael A. E. Andersen

doi:10.1109/APEC.2016.7468212

Wide Input Range Power Converters Using a Variable Turns Ratio Transformer

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Abstract

A new integrated transformer with variable turns ratio is proposed to enable dc-dc converters operating over a wide input voltage range. The integrated transformer employs a new geometry of magnetic core with “four legs”, two primary windings with orthogonal arrangement, and “8” shape connection of diagonal secondary windings, in order to make the transformer turns ratio adjustable by controlling the phase between the two current excitations subjected to the two primary windings. Full-bridge boost dc-dc converter is employed with the proposed transformer to demonstrate the feasibility of the variable turns ratio. 1-kW experimental prototype targeting to the PV standalone system has been built to well demonstrate a wide input voltage operation with high efficiencies.

Original language	English
Title of host publication	Proceedings of 2016 IEEE Applied Power Electronics Conference and Exposition
Publisher	IEEE
Publication date	2016
Pages	2473-2478
ISBN (Print)	978-1-4673-8393-6
DOIs	https://doi.org/10.1109/APEC.2016.7468212
Publication status	Published - 2016
Event	2016 IEEE Applied Power Electronics Conference and Exposition - Long Beach Convention & Entertainment Center, Long Beach, United States Duration: 20 Mar 2016 → 24 Mar 2016 Conference number: 31 https://apec-conf.org/uploads/documents/APEC-2016-FINAL-PROGRAM-BOOK.pdf

Conference

Conference	2016 IEEE Applied Power Electronics Conference and Exposition
Number	31
Location	Long Beach Convention & Entertainment Center
Country/Territory	United States
City	Long Beach
Period	20/03/2016 → 24/03/2016
Internet address	https://apec-conf.org/uploads/documents/APEC-2016-FINAL-PROGRAM-BOOK.pdf

Keywords

Wide input voltage
dc-dc
Integrated transformer
Variable turns ratio

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10.1109/APEC.2016.7468212

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@inproceedings{bd87bb6974494cf7a259336612bf56a6,

title = "Wide Input Range Power Converters Using a Variable Turns Ratio Transformer",

abstract = "A new integrated transformer with variable turns ratio is proposed to enable dc-dc converters operating over a wide input voltage range. The integrated transformer employs a new geometry of magnetic core with “four legs”, two primary windings with orthogonal arrangement, and “8” shape connection of diagonal secondary windings, in order to make the transformer turns ratio adjustable by controlling the phase between the two current excitations subjected to the two primary windings. Full-bridge boost dc-dc converter is employed with the proposed transformer to demonstrate the feasibility of the variable turns ratio. 1-kW experimental prototype targeting to the PV standalone system has been built to well demonstrate a wide input voltage operation with high efficiencies.",

keywords = "Wide input voltage, dc-dc, Integrated transformer, Variable turns ratio ",

author = "Ziwei Ouyang and Andersen, \{Michael A. E.\}",

year = "2016",

doi = "10.1109/APEC.2016.7468212",

language = "English",

isbn = "978-1-4673-8393-6",

pages = "2473--2478",

booktitle = "Proceedings of 2016 IEEE Applied Power Electronics Conference and Exposition",

publisher = "IEEE",

address = "United States",

note = "2016 IEEE Applied Power Electronics Conference and Exposition, APEC 2016 ; Conference date: 20-03-2016 Through 24-03-2016",

url = "https://apec-conf.org/uploads/documents/APEC-2016-FINAL-PROGRAM-BOOK.pdf",

}

TY - GEN

T1 - Wide Input Range Power Converters Using a Variable Turns Ratio Transformer

AU - Ouyang, Ziwei

AU - Andersen, Michael A. E.

N1 - Conference code: 31

PY - 2016

Y1 - 2016

N2 - A new integrated transformer with variable turns ratio is proposed to enable dc-dc converters operating over a wide input voltage range. The integrated transformer employs a new geometry of magnetic core with “four legs”, two primary windings with orthogonal arrangement, and “8” shape connection of diagonal secondary windings, in order to make the transformer turns ratio adjustable by controlling the phase between the two current excitations subjected to the two primary windings. Full-bridge boost dc-dc converter is employed with the proposed transformer to demonstrate the feasibility of the variable turns ratio. 1-kW experimental prototype targeting to the PV standalone system has been built to well demonstrate a wide input voltage operation with high efficiencies.

AB - A new integrated transformer with variable turns ratio is proposed to enable dc-dc converters operating over a wide input voltage range. The integrated transformer employs a new geometry of magnetic core with “four legs”, two primary windings with orthogonal arrangement, and “8” shape connection of diagonal secondary windings, in order to make the transformer turns ratio adjustable by controlling the phase between the two current excitations subjected to the two primary windings. Full-bridge boost dc-dc converter is employed with the proposed transformer to demonstrate the feasibility of the variable turns ratio. 1-kW experimental prototype targeting to the PV standalone system has been built to well demonstrate a wide input voltage operation with high efficiencies.

KW - Wide input voltage

KW - dc-dc

KW - Integrated transformer

KW - Variable turns ratio

U2 - 10.1109/APEC.2016.7468212

DO - 10.1109/APEC.2016.7468212

M3 - Article in proceedings

SN - 978-1-4673-8393-6

SP - 2473

EP - 2478

BT - Proceedings of 2016 IEEE Applied Power Electronics Conference and Exposition

PB - IEEE

T2 - 2016 IEEE Applied Power Electronics Conference and Exposition

Y2 - 20 March 2016 through 24 March 2016

ER -

Wide Input Range Power Converters Using a Variable Turns Ratio Transformer

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