Full PEEC Modeling of EMI Filter Inductors in the Frequency Domain

Autor:	Thomas Friedli, Johann W. Kolar, A. Musing, Ivana F. Kovacevic
Rok vydání:	2013
Předmět:	Physics Partial element equivalent circuit Magnetic core Filter (video) EMI Acoustics Equivalent circuit Electrical and Electronic Engineering Inductor Electrical impedance Finite element method Electronic Optical and Magnetic Materials
Zdroj:	IEEE Transactions on Magnetics. 49:5248-5256
ISSN:	1941-0069 0018-9464
Popis:	In this paper, the performance of a new method based on the coupling of the partial element equivalent circuit method and boundary integral method (the PEEC-BIM method) for 3D modeling of toroidal inductors, which are typically used in electromagnetic interference (EMI) filter applications, is presented. The presence of magnetic materials is modeled by replacing the surface of magnetic regions with an equivalent distribution of fictitious current loops. It is shown that the influence of the magnetic core on the impedance and the stray field of EMI filter inductors can be modeled and explained in detail by PEEC-BIM simulation results. The developed PEEC-BIM approach is verified by both 3D finite-element method (FEM) simulations and near-field measurements for different winding configurations and magnetic cores. Regarding computational complexity, the developed PEEC-BIM method applied to toroidal inductors performs extremely well. The PEEC-BIM simulation is at least twice faster than the corresponding FEM-based analysis. The PEEC-BIM method has been implemented in a PEEC-based simulation tool, which facilitates the simulation of entire EMI filter structures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::eae4cd6d45a0ae742b03f0f86ddc1c02 https://doi.org/10.1109/tmag.2013.2260344 Zobrazit plný text záznamu