Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System
Abstract
:1. Introduction
2. Effect of Inaccurate Coupling Coefficient on PTE of a Multi-Coil WPT System
3. Conventional and Proposed Methods
3.1. Conventional Measurement Methods
3.2. Proposed Measurement Method
3.3. Simplicity of the Proposed Method
4. Experimental Setup and Results
4.1. Experimental Setup for Measurement
4.2. Changing Coupling Coefficient between Coils
4.3. Comparison Results and Discussion
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Coil 1 | Coil 2 | Coil 3 | |
---|---|---|---|
Case #1 | L = 1.1 μH Rdc = 0.08 Ω | L = 1.1 μH Rdc = 0.08 Ω | L = 1.1 μH Rdc = 0.08 Ω |
Case #2 | L = 1.1 μH Rdc = 0.08 Ω | L = 3.8 μH Rdc = 0.19 Ω | L = 1.1 μH Rdc = 0.08 Ω |
at 6.78 MHz | at 13.56 MHz | |||
---|---|---|---|---|
Mean | St Dev. | Mean | St Dev. | |
Case #1 | 4.1 × 10−4 | 5.21 × 10−4 | 5.11 × 10−4 | 3.75 × 10−4 |
Case #2 | 5.21 × 10−4 | 5.94 × 10−4 | 12.26 × 10−4 | 11.73 × 10−4 |
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Jeon, S.-J.; Seo, D.-W. Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System. Energies 2019, 12, 3950. https://doi.org/10.3390/en12203950
Jeon S-J, Seo D-W. Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System. Energies. 2019; 12(20):3950. https://doi.org/10.3390/en12203950
Chicago/Turabian StyleJeon, Seon-Jae, and Dong-Wook Seo. 2019. "Coupling Coefficient Measurement Method with Simple Procedures Using a Two-Port Network Analyzer for a Multi-Coil WPT System" Energies 12, no. 20: 3950. https://doi.org/10.3390/en12203950