Improving reliability of magnetic mutual impedance measurement at high excitation level
| Autor: | Behzad Ahmadi, A. Kedous-Lebouc, H. Chazal, F. Mesmin, Fabien Sixdenier |
|---|---|
| Přispěvatelé: | Laboratoire de Génie Electrique de Grenoble (G2ELab), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), Ampère (AMPERE), École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Université de Lyon-Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE) |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
010302 applied physics
Materials science Toroid Acoustics 020208 electrical & electronic engineering [SPI.NRJ]Engineering Sciences [physics]/Electric power Choke 02 engineering and technology 01 natural sciences Permeability (electromagnetism) Power electronics 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Electronic engineering Equivalent circuit Device under test Electrical impedance Excitation |
| Zdroj: | Proceedings of the IEEE International Instrumentation and Measurement Technology Conference 2011 IEEE I2MTC 2011 IEEE I2MTC, May 2011, Hangzhou, China. ⟨10.1109/IMTC.2011.5944231⟩ |
| DOI: | 10.1109/IMTC.2011.5944231⟩ |
| Popis: | International audience; Power electronic designers are interested in characterization of the magnetic cores permeability up to 10MHz and at high induction level. To achieve this aim, different experimental setups are used to measure mutual impedance spectra. First, impedance measurement methods are carried out on toroidal wound core of 20 μm nanocrystalline ribbons. Measurement uncertainties are estimated and a confidence factor is introduced as a useful consistency test to improve measurement reliability. Then a lumped equivalent circuit is identified to model electrostatic and magnetic frequency behavior of the device under test. It allows calculating complex permeability spectra over the resonance frequency of the device under test. Finally, we point out the limitation due to high excitation level. According to that, a flux-metric experimental setup is described and elliptical hysteresis-loops are measured. These results allow to consider magnetic linear behavior until a few 10mT and to extend complex permeability calculations to high induction level with good reliability. |
| Databáze: | OpenAIRE |
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