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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2019.5
- 수록면
- 3,040 - 3,046 (7page)
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초록· 키워드
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This paper addresses the technical challenges of ferromagnetic core loss estimation for medium frequency transformers. While core losses are usually characterized from the manufacturer side for a given ferromagnetic material on a toroidal sample with sinusoidal excitation, these results are not necessarily directly transferable to typical conditions encountered within power electronic converters. Moreover, the presence of core cuts and its rectangular geometry with sharp corners have a significant influence on magnetic field distribution and therefore the localized loss density. A detailed analysis and modeling of the mentioned effects is presented in this paper together with experimental characterization of various core samples of interest considering both sinusoidal and square voltage excitation within the relevant frequency range. Derived models allow to generalize the core loss estimation based on characterization of one core sample to any different core shape and size made of the same material and same technology.
목차
Abstract
I. INTRODUCTION
II. FEM ANALYSIS
III. PROPOSED MODELING APPROACH
IV. EXPERIMENTAL VERIFICATION
V. CONCLUSION
REFERENCES
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