Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging Applications
A detailed theoretical design of an electric resonance-based coupler for dynamic wireless power transfer (DWPT) at the mobile robot level is presented. The scattering matrix of the coupler was derived by transforming and multiplying transmission matrices for each circuit network in a practical equiv...
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MDPI AG
2025-01-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/15/2/823 |
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| author | Hongguk Bae Sangwook Park |
| author_facet | Hongguk Bae Sangwook Park |
| author_sort | Hongguk Bae |
| collection | DOAJ |
| description | A detailed theoretical design of an electric resonance-based coupler for dynamic wireless power transfer (DWPT) at the mobile robot level is presented. The scattering matrix of the coupler was derived by transforming and multiplying transmission matrices for each circuit network in a practical equivalent circuit that accounted for loss resistance. This theoretical approach was validated through equivalent circuit models, yielding results consistent with 3D full-wave simulations and showing an error rate of less than 1%. Additionally, a null-power point characteristic, where efficiency sharply decreases when the receiver moves outside the transmitter’s range, was observed. The detailed theoretical design of the practical equivalent circuit for electric resonance-based dynamic WPT couplers is expected to contribute to the design of couplers for various specifications in future applications. |
| format | Article |
| id | doaj-art-ca92a167c1a14d4195e8c18848406b97 |
| institution | Kabale University |
| issn | 2076-3417 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj-art-ca92a167c1a14d4195e8c18848406b972025-01-24T13:20:57ZengMDPI AGApplied Sciences2076-34172025-01-0115282310.3390/app15020823Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging ApplicationsHongguk Bae0Sangwook Park1Department of ICT Convergence, Soonchunhyang University, Asan 31538, Republic of KoreaDepartment of Electronic Engineering, Soonchunhyang University, Asan 31538, Republic of KoreaA detailed theoretical design of an electric resonance-based coupler for dynamic wireless power transfer (DWPT) at the mobile robot level is presented. The scattering matrix of the coupler was derived by transforming and multiplying transmission matrices for each circuit network in a practical equivalent circuit that accounted for loss resistance. This theoretical approach was validated through equivalent circuit models, yielding results consistent with 3D full-wave simulations and showing an error rate of less than 1%. Additionally, a null-power point characteristic, where efficiency sharply decreases when the receiver moves outside the transmitter’s range, was observed. The detailed theoretical design of the practical equivalent circuit for electric resonance-based dynamic WPT couplers is expected to contribute to the design of couplers for various specifications in future applications.https://www.mdpi.com/2076-3417/15/2/823WPT (wireless power transfer)dynamic WPTCPT (capacitive wireless power transfer)PEC (practical equivalent circuit)mutual capacitance |
| spellingShingle | Hongguk Bae Sangwook Park Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging Applications Applied Sciences WPT (wireless power transfer) dynamic WPT CPT (capacitive wireless power transfer) PEC (practical equivalent circuit) mutual capacitance |
| title | Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging Applications |
| title_full | Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging Applications |
| title_fullStr | Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging Applications |
| title_full_unstemmed | Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging Applications |
| title_short | Design of Four-Plate Parallel Dynamic Capacitive Wireless Power Transfer Coupler for Mobile Robot Wireless-Charging Applications |
| title_sort | design of four plate parallel dynamic capacitive wireless power transfer coupler for mobile robot wireless charging applications |
| topic | WPT (wireless power transfer) dynamic WPT CPT (capacitive wireless power transfer) PEC (practical equivalent circuit) mutual capacitance |
| url | https://www.mdpi.com/2076-3417/15/2/823 |
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