Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers

Yudi Xiao; Martijn Sebastiaan Duraij; Zhe Zhang; Tiberiu Gabriel Zsurzsan; Mads Hansen; Brian Thomsen

doi:10.1109/IPEMC-ECCEAsia48364.2020.9368093

Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers

Yudi Xiao
, Martijn Sebastiaan Duraij
, Zhe Zhang
, Tiberiu Gabriel Zsurzsan
, Mads Hansen
, Brian Thomsen

Welltec A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Minimizing transformer winding loss is a prominent factor to increase efficiency of power electronics converters. This is especially valid for modern switched-mode power supplies, where eddy current effects on windings become dominant due to continuously elevated switching frequency. In this paper, a field shaping technique, dubbed the field-cannon-technique, is proposed to mitigate eddy current effects in high frequency transformers’ foil windings. The basic principle and the implementation of the proposed technique is introduced. A model is derived using finite difference method, in order to calculate the distribution of the magnetic field within the transformers implemented with the field-cannon-technique. Finally, the technique is verified by experiments, where the winding resistance of the transformer is reduced by a factor of three.

Original language	English
Title of host publication	Proceedings of IEEE 9^th International Power Electronics and Motion Control Conference
Publisher	IEEE
Publication date	2021
Pages	1063-1068
ISBN (Print)	978-1-7281-5302-5
DOIs	https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9368093
Publication status	Published - 2021
Event	2020 IEEE 9^th International Power Electronics and Motion Control Conference - International Youth Cultural Centre, Nanjing, China Duration: 29 Nov 2020 → 2 Dec 2020 https://epe-ecce-conferences.com/epe2020/ipemc-2020-ecce-asia/

Conference

Conference	2020 IEEE 9^th International Power Electronics and Motion Control Conference
Location	International Youth Cultural Centre
Country/Territory	China
City	Nanjing
Period	29/11/2020 → 02/12/2020
Internet address	https://epe-ecce-conferences.com/epe2020/ipemc-2020-ecce-asia/

Keywords

Eddy current
High frequency
Transformers
Magnetic field shaping

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10.1109/IPEMC-ECCEAsia48364.2020.9368093

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@inproceedings{fb6c0085a0354f44809aec379795dfca,

title = "Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers",

abstract = "Minimizing transformer winding loss is a prominent factor to increase efficiency of power electronics converters. This is especially valid for modern switched-mode power supplies, where eddy current effects on windings become dominant due to continuously elevated switching frequency. In this paper, a field shaping technique, dubbed the field-cannon-technique, is proposed to mitigate eddy current effects in high frequency transformers{\textquoteright} foil windings. The basic principle and the implementation of the proposed technique is introduced. A model is derived using finite difference method, in order to calculate the distribution of the magnetic field within the transformers implemented with the field-cannon-technique. Finally, the technique is verified by experiments, where the winding resistance of the transformer is reduced by a factor of three.",

keywords = "Eddy current, High frequency, Transformers, Magnetic field shaping",

author = "Yudi Xiao and Duraij, \{Martijn Sebastiaan\} and Zhe Zhang and Zsurzsan, \{Tiberiu Gabriel\} and Mads Hansen and Brian Thomsen",

year = "2021",

doi = "10.1109/IPEMC-ECCEAsia48364.2020.9368093",

language = "English",

isbn = "978-1-7281-5302-5",

pages = "1063--1068",

booktitle = "Proceedings of IEEE 9th International Power Electronics and Motion Control Conference",

publisher = "IEEE",

address = "United States",

note = "2020 IEEE 9<sup>th</sup> International Power Electronics and Motion Control Conference, IPEMC2020 ; Conference date: 29-11-2020 Through 02-12-2020",

url = "https://epe-ecce-conferences.com/epe2020/ipemc-2020-ecce-asia/",

}

Xiao, Y, Duraij, MS, Zhang, Z, Zsurzsan, TG, Hansen, M & Thomsen, B 2021, Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers. in Proceedings of IEEE 9^th International Power Electronics and Motion Control Conference . IEEE, pp. 1063-1068, 2020 IEEE 9^th International Power Electronics and Motion Control Conference, Nanjing, China, 29/11/2020. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9368093

Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers. / Xiao, Yudi; Duraij, Martijn Sebastiaan; Zhang, Zhe et al.
Proceedings of IEEE 9^th International Power Electronics and Motion Control Conference . IEEE, 2021. p. 1063-1068.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers

AU - Xiao, Yudi

AU - Duraij, Martijn Sebastiaan

AU - Zhang, Zhe

AU - Zsurzsan, Tiberiu Gabriel

AU - Hansen, Mads

AU - Thomsen, Brian

PY - 2021

Y1 - 2021

N2 - Minimizing transformer winding loss is a prominent factor to increase efficiency of power electronics converters. This is especially valid for modern switched-mode power supplies, where eddy current effects on windings become dominant due to continuously elevated switching frequency. In this paper, a field shaping technique, dubbed the field-cannon-technique, is proposed to mitigate eddy current effects in high frequency transformers’ foil windings. The basic principle and the implementation of the proposed technique is introduced. A model is derived using finite difference method, in order to calculate the distribution of the magnetic field within the transformers implemented with the field-cannon-technique. Finally, the technique is verified by experiments, where the winding resistance of the transformer is reduced by a factor of three.

AB - Minimizing transformer winding loss is a prominent factor to increase efficiency of power electronics converters. This is especially valid for modern switched-mode power supplies, where eddy current effects on windings become dominant due to continuously elevated switching frequency. In this paper, a field shaping technique, dubbed the field-cannon-technique, is proposed to mitigate eddy current effects in high frequency transformers’ foil windings. The basic principle and the implementation of the proposed technique is introduced. A model is derived using finite difference method, in order to calculate the distribution of the magnetic field within the transformers implemented with the field-cannon-technique. Finally, the technique is verified by experiments, where the winding resistance of the transformer is reduced by a factor of three.

KW - Eddy current

KW - High frequency

KW - Transformers

KW - Magnetic field shaping

U2 - 10.1109/IPEMC-ECCEAsia48364.2020.9368093

DO - 10.1109/IPEMC-ECCEAsia48364.2020.9368093

M3 - Article in proceedings

SN - 978-1-7281-5302-5

SP - 1063

EP - 1068

BT - Proceedings of IEEE 9th International Power Electronics and Motion Control Conference

PB - IEEE

T2 - 2020 IEEE 9<sup>th</sup> International Power Electronics and Motion Control Conference

Y2 - 29 November 2020 through 2 December 2020

ER -

Field-cannon-technique to Reduce AC Resistance of Foil Windings in High Frequency Transformers

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Keywords

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