Home Journals Articles Updates About
CN
image
收藏切换
Analysis of Core Eddy Current Loss Caused by Leakage Flux in Nanocrystalline High-frequency Transformer
收藏切换
PDF
Xue LIU1, 2, Lu ZHAO1, Chengyao MA1, 2, Enze FAN1, 2, Qiongxuan GE1
Electric Drive | 2025, 55(3) : 27 - 34
Less
收藏切换
Electric Drive | 2025, 55(3): 27-34
Analysis of Core Eddy Current Loss Caused by Leakage Flux in Nanocrystalline High-frequency Transformer
Full
Xue LIU1, 2, Lu ZHAO1, Chengyao MA1, 2, Enze FAN1, 2, Qiongxuan GE1
Affiliations
  • 1 Institute of Electrical Engineering，Chinese Academy of Sciences，Beijing 100190，China
  • 2 School of Electronic，Electrical and Communication Engineering，University of Chinese Academy of Sciences，Beijing 100049，China
Published: 2025-03-20 doi: 10.19457/j.1001-2095.dqcd24993
Outline
收藏切换

High-frequency transformers are an essential component in series-resonant DC/DC converters，and their stable operation has a decisive impact on the reliability，efficiency，and power density of power supply systems. Nanocrystalline magnetic cores are widely used due to their advantages of high saturation magnetic flux，high magnetic permeability，low coercivity，and low high-frequency losses. In order to improve the power density of DC/DC converters，the leakage inductance of high-frequency transformers is commonly used as a resonant inductor to achieve the soft-switching characteristics of the switching devices. However，nanocrystalline alloys possess a high electrical conductivity，and when high-frequency leakage magnetic flux passes perpendicularly through the surface strip，it induces strong eddy currents，which could result in potential thermal issues，thereby compromising the stable and safe operation of the transformer and the system. An improved finite element simulation method for high-frequency transformers was proposed for determining the distribution characteristics of additional eddy current losses induced by high frequency leakage flux at large leakage inductance by building a three-dimensional model of nanocrystalline strips at the edge of the independent core，and its validity was verified by temperature rise experiments.

nanocrystalline core  /  high-frequency transformer  /  leakage inductance  /  eddy current loss
Xue LIU, Lu ZHAO, Chengyao MA, Enze FAN, Qiongxuan GE. Analysis of Core Eddy Current Loss Caused by Leakage Flux in Nanocrystalline High-frequency Transformer[J]. Electric Drive, 2025 , 55 (3) : 27 -34 . DOI: 10.19457/j.1001-2095.dqcd24993
Appendix
Less
Year 2025 volume 55 Issue 3
PDF
209
81
Cite this Article
BibTeX
Article Info
doi: 10.19457/j.1001-2095.dqcd24993
  • Receive Date：2023-02-28
  • Online Date：2025-11-26
  • Published：2025-03-20
Article Data
Affiliations
History
  • Received：2023-02-28
  • Revised：2023-03-11
Funding
Affiliations
    1 Institute of Electrical Engineering，Chinese Academy of Sciences，Beijing 100190，China
    2 School of Electronic，Electrical and Communication Engineering，University of Chinese Academy of Sciences，Beijing 100049，China
References
Share
https://castjournals.cast.org.cn/joweb/dqcd/EN/10.19457/j.1001-2095.dqcd24993
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House