Prediction of Power Transfer Efficiency in Tens of Kilohertz Band of Contactless Power Transfer Devices That Use Vinyl-Insulated Wire Coils
The power transfer efficiency of contactless power transfer devices that use vinyl-insulated wires was predicted by combining electromagnetic field analysis using the finite element method and equivalent circuit analysis using the Runge-Kutta method. We examined whether the measured power transfer e...
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| Published in | Journal of Advanced Simulation in Science and Engineering Vol. 12; no. 1; pp. 201 - 210 |
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| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Japan Society for Simulation Technology
2025
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| Subjects | |
| Online Access | Get full text |
| ISSN | 2188-5303 2188-5303 |
| DOI | 10.15748/jasse.12.201 |
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| Abstract | The power transfer efficiency of contactless power transfer devices that use vinyl-insulated wires was predicted by combining electromagnetic field analysis using the finite element method and equivalent circuit analysis using the Runge-Kutta method. We examined whether the measured power transfer efficiency is the median of the values obtained from calculations that considered vinyl-insulated wire to be a single solid wire and litz wire (vinyl-insulated wire is considered to be in an intermediate state between these two types of wire). It was found that the measured power transfer efficiency was not the median of the two calculated values in some cases. One of the calculated values was always slightly smaller than the measured value. The proposed method can thus be used to predict the lower limit of power transfer efficiency. |
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| AbstractList | The power transfer efficiency of contactless power transfer devices that use vinyl-insulated wires was predicted by combining electromagnetic field analysis using the finite element method and equivalent circuit analysis using the Runge-Kutta method. We examined whether the measured power transfer efficiency is the median of the values obtained from calculations that considered vinyl-insulated wire to be a single solid wire and litz wire (vinyl-insulated wire is considered to be in an intermediate state between these two types of wire). It was found that the measured power transfer efficiency was not the median of the two calculated values in some cases. One of the calculated values was always slightly smaller than the measured value. The proposed method can thus be used to predict the lower limit of power transfer efficiency. |
| Author | Yonetsu, Daigo Ganaha, Ryuta |
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| Cites_doi | 10.1109/ICEMS.2015.7385180 10.1541/ieejias.134.948 10.1109/TMAG.2005.844844 10.1109/COMPUMAG56388.2023.10411770 10.1109/20.717747 10.1109/TMAG.2017.2772335 |
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| References | [5] Y. Kawase, T. Yamaguchi, D. Kato, S. Tsukada, K. Ito, K. Ida, Y. Fukui, N. Nishikawa: Numerical Analysis of Stranded Wire Coil with Magnetic Substrate Using 3ID Finite Element Method, in 18th International Conference on Electrical Machines and Systems (ICEMS), Pattaya, 2015, 985-988. [6] Y. Kawase, T. Mori, T. Ota: Magnetic Field Analysis of Coupling Transformers for Electric Vehicle Using 3-D Finite Element Method, IEEE Trans. on Magnetics, 34:5 (1998), 3186-3189. [4] S. Hiruma, Y. Otomo, H. Igarashi: Eddy Current Analysis of Litz Wire Using Homogenization-Based FEM in Conjunction With Integral Equation, IEEE Trans. on Magnetics, 54:3 (2018), 1-4. [1] D. Yonetsu, Y. Yamamoto: Behavior Prediction for Low-power Non-contact Charger, Transactions on IEE Japan, 134-D:11 (2014), 948-955. [3] J. Acero, P. J. Hernández, J. M. Burdío, R. Alonso, L. A. Barragán: Simple Resistance Calculation in Litz-Wire Planar Windings for Induction Cooking Appliances, IEEE Trans. on Magnetics, 41:4 (2005), 1280-1288. [2] D. Yonetsu, Y. Maehara: Power Transfer Efficiency Calculation for Non-contact Charger with Wire Coils in the 85-kHz Band, in 2023 24th International Conference on the Computation of Electromagnetic Fields (COMPUMAG), Kyoto, 2023, 1-4. 1 2 3 4 5 6 |
| References_xml | – reference: [1] D. Yonetsu, Y. Yamamoto: Behavior Prediction for Low-power Non-contact Charger, Transactions on IEE Japan, 134-D:11 (2014), 948-955. – reference: [6] Y. Kawase, T. Mori, T. Ota: Magnetic Field Analysis of Coupling Transformers for Electric Vehicle Using 3-D Finite Element Method, IEEE Trans. on Magnetics, 34:5 (1998), 3186-3189. – reference: [2] D. Yonetsu, Y. Maehara: Power Transfer Efficiency Calculation for Non-contact Charger with Wire Coils in the 85-kHz Band, in 2023 24th International Conference on the Computation of Electromagnetic Fields (COMPUMAG), Kyoto, 2023, 1-4. – reference: [4] S. Hiruma, Y. Otomo, H. Igarashi: Eddy Current Analysis of Litz Wire Using Homogenization-Based FEM in Conjunction With Integral Equation, IEEE Trans. on Magnetics, 54:3 (2018), 1-4. – reference: [5] Y. Kawase, T. Yamaguchi, D. Kato, S. Tsukada, K. Ito, K. Ida, Y. Fukui, N. Nishikawa: Numerical Analysis of Stranded Wire Coil with Magnetic Substrate Using 3ID Finite Element Method, in 18th International Conference on Electrical Machines and Systems (ICEMS), Pattaya, 2015, 985-988. – reference: [3] J. Acero, P. J. Hernández, J. M. Burdío, R. Alonso, L. A. Barragán: Simple Resistance Calculation in Litz-Wire Planar Windings for Induction Cooking Appliances, IEEE Trans. on Magnetics, 41:4 (2005), 1280-1288. – ident: 5 doi: 10.1109/ICEMS.2015.7385180 – ident: 1 doi: 10.1541/ieejias.134.948 – ident: 3 doi: 10.1109/TMAG.2005.844844 – ident: 2 doi: 10.1109/COMPUMAG56388.2023.10411770 – ident: 6 doi: 10.1109/20.717747 – ident: 4 doi: 10.1109/TMAG.2017.2772335 |
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| Snippet | The power transfer efficiency of contactless power transfer devices that use vinyl-insulated wires was predicted by combining electromagnetic field analysis... |
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| SubjectTerms | circuit analysis Contactless power transfer device finite element analysis litz wire power transfer efficiency vinyl-insulated copper wire |
| Title | Prediction of Power Transfer Efficiency in Tens of Kilohertz Band of Contactless Power Transfer Devices That Use Vinyl-Insulated Wire Coils |
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