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- Title
A multi-dimensional finite element analysis of magnetic core loss in arbitrary magnetization waveforms with switching converter applications.
- Authors
Baek, Seunghun; Lee, Jae Suk
- Abstract
Estimating losses accurately for magnetic materials in power conversion circuits is a challenging task. Solving the partial differential equations in a complex geometry of inductive components such as filter-integrated transformers is an additional prominent challenge. While there are some commercially available finite element simulation tools that provide loss calculations in time-domain for multi-dimensional geometries of magnetic materials, the principle of analysis is not fully disclosed and less flexible for engineers to use. In this paper, we introduce a comprehensive method for systematically and flexibly applying time-domain dynamic loss equations to geometric finite element methods in multi-dimensions. The developed post-process framework for magnetic core loss calculations is coded in an open-source programming language, Python, and verified by comparison with analytical solutions for a filter integrated isolation transformer under a variety of operating conditions. Parallel processing is used to deal with the large datasets associated with element-by-element numerical calculations in the time domain. A high level of accuracy is achieved and verified.
- Subjects
MAGNETIC flux leakage; MAGNETIC cores; FINITE element method; MAGNETIC materials; MAGNETIZATION
- Publication
Electrical Engineering, 2024, Vol 106, Issue 2, p1793
- ISSN
0948-7921
- Publication type
Article
- DOI
10.1007/s00202-022-01522-7