A Full-Wave Integral Equation Method Including Accurate Wide-Frequency-Band Wire Models for WPT Coils
| Autor: | Zsolt Badics, Jozsef Pavo, Szabolcs Gyimothy, Sandor Bilicz |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Electromagnetic field Physics Generalization Frequency band Mathematical analysis 020206 networking & telecommunications 02 engineering and technology Method of moments (statistics) 01 natural sciences Finite element method Electronic Optical and Magnetic Materials Image impedance 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Wireless power transfer Electrical and Electronic Engineering Electrical impedance |
| Zdroj: | IEEE Transactions on Magnetics. 54:1-4 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | A full-wave surface integral equation method is used for modeling coils in a wide frequency range. This is of high importance in the analysis of resonant wireless power transfer links, for example. This paper presents a nonlocal generalization of the impedance boundary condition (BC) concept by incorporating a 2-D model (using the finite element method here) of the quasi-static electromagnetic field within the wire. This yields a numerical approximation of the nonlocal impedance BC on the wire surface that holds true at any frequency. The 2-D eddy-current model has to be evaluated only twice at one frequency, which makes the scheme computationally efficient. The method accurately predicts the ohmic loss as shown by the validations against alternative methods. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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