Calculation Methodology of Complex Permeability for Various Magnetic Materials
- Title
- Calculation Methodology of Complex Permeability for Various Magnetic Materials
- Author
- 이은수
- Keywords
- complex permeability; magnetic materials; ferrite core; amorphous core; nanocrystalline core
- Issue Date
- 2021-09
- Publisher
- MDPI
- Citation
- ELECTRONICS; SEP 2021, 10 17, p2167 9p.
- Abstract
- In order to design power converters and wireless power systems using high-frequency
magnetic materials, the magnetic characteristics for the inductors and transformers should be specified in detail w.r.t. the operating frequency. For investigating the complex permeability of the
magnetic materials by simply test prototypes, the inductor model-based calculation methodologies
for the complex permeability are suggested to find the core loss characteristics in this paper. Based on
the measured results of the test voltage Ve, current Ie, and phase difference θe, which can be obtained
simply by an oscilloscope and a function generator, the real and imaginary permeability can be calculated w.r.t. operating frequency by the suggested calculation methodologies. Such information for
the real and imaginary permeability is important to determine the size of the magnetic components
and to analyze the core loss. To identify the superiority of the high-frequency magnetic materials,
three prototypes for a ferrite core, amorphous core, and nanocrystalline core have been built and
verified by experiment. As a result, the ferrite core is superior to the other cores for core loss, and the
nanocrystalline core is recommended for compact transformer applications. The proposed calculation
for the complex (i.e., real and imaginary) permeability, which has not been revealed in the datasheets,
provides a way to easily determine the parameters useful for industrial electronics engineers.
- URI
- https://www.proquest.com/docview/2570774411?accountid=11283https://repository.hanyang.ac.kr/handle/20.500.11754/170581
- ISSN
- 20799292
- DOI
- 10.3390/electronics10172167
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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