Effective Circuit Configuration and Control for Coil-Array Wireless Power Transmitters
This article presents a circuit configuration and control for coil-array wireless power transmitters. The target coil arrays have coils that are uniform in shape and dimensions and are regularly arranged with an angular interval of 120°. The system has a three-leg half-bridge inverter, wh...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2023-01-01
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| Series: | IEEE Open Journal of the Industrial Electronics Society |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/10113817/ |
| _version_ | 1797339210189897728 |
|---|---|
| author | Hirokazu Matsumoto Wataru Yoneyama Aozora Hata Yuki Sato |
| author_facet | Hirokazu Matsumoto Wataru Yoneyama Aozora Hata Yuki Sato |
| author_sort | Hirokazu Matsumoto |
| collection | DOAJ |
| description | This article presents a circuit configuration and control for coil-array wireless power transmitters. The target coil arrays have coils that are uniform in shape and dimensions and are regularly arranged with an angular interval of 120°. The system has a three-leg half-bridge inverter, which simultaneously feeds the three coils in the transmitter. It can deal with more than three coils by adding a switch set between the inverter and the coils. The system has a configuration to cancel mutual inductances between the transmitter coils and improve the power factor of the system. It can maximize the efficiency from the transmitter coils to the receiver coil and can output uniform power regardless of the receiver position. The current condition for achieving these features is derived, and a field-programmable-gate-array-based control for realizing the current condition is presented. The performance of the proposed system is experimentally validated with an implemented prototype. Results show that the system has a power variation of less than 5.8% depending on the receiver position. The system can operate at approximately maximum efficiency. |
| first_indexed | 2024-03-08T09:42:39Z |
| format | Article |
| id | doaj.art-56a4d6f9e8cf448b910b384298ae771e |
| institution | Directory Open Access Journal |
| issn | 2644-1284 |
| language | English |
| last_indexed | 2024-03-08T09:42:39Z |
| publishDate | 2023-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of the Industrial Electronics Society |
| spelling | doaj.art-56a4d6f9e8cf448b910b384298ae771e2024-01-30T00:06:11ZengIEEEIEEE Open Journal of the Industrial Electronics Society2644-12842023-01-01414915810.1109/OJIES.2023.327203010113817Effective Circuit Configuration and Control for Coil-Array Wireless Power TransmittersHirokazu Matsumoto0https://orcid.org/0000-0003-2199-0106Wataru Yoneyama1Aozora Hata2Yuki Sato3https://orcid.org/0000-0002-4052-5966Aoyama Gakuin University, Sagamihara, JapanAoyama Gakuin University, Sagamihara, JapanAoyama Gakuin University, Sagamihara, JapanAoyama Gakuin University, Sagamihara, JapanThis article presents a circuit configuration and control for coil-array wireless power transmitters. The target coil arrays have coils that are uniform in shape and dimensions and are regularly arranged with an angular interval of 120°. The system has a three-leg half-bridge inverter, which simultaneously feeds the three coils in the transmitter. It can deal with more than three coils by adding a switch set between the inverter and the coils. The system has a configuration to cancel mutual inductances between the transmitter coils and improve the power factor of the system. It can maximize the efficiency from the transmitter coils to the receiver coil and can output uniform power regardless of the receiver position. The current condition for achieving these features is derived, and a field-programmable-gate-array-based control for realizing the current condition is presented. The performance of the proposed system is experimentally validated with an implemented prototype. Results show that the system has a power variation of less than 5.8% depending on the receiver position. The system can operate at approximately maximum efficiency.https://ieeexplore.ieee.org/document/10113817/Coil arrayFPGA-based controlmultileg inverteroptimal current controlthree-phase systemwireless power transfer |
| spellingShingle | Hirokazu Matsumoto Wataru Yoneyama Aozora Hata Yuki Sato Effective Circuit Configuration and Control for Coil-Array Wireless Power Transmitters IEEE Open Journal of the Industrial Electronics Society Coil array FPGA-based control multileg inverter optimal current control three-phase system wireless power transfer |
| title | Effective Circuit Configuration and Control for Coil-Array Wireless Power Transmitters |
| title_full | Effective Circuit Configuration and Control for Coil-Array Wireless Power Transmitters |
| title_fullStr | Effective Circuit Configuration and Control for Coil-Array Wireless Power Transmitters |
| title_full_unstemmed | Effective Circuit Configuration and Control for Coil-Array Wireless Power Transmitters |
| title_short | Effective Circuit Configuration and Control for Coil-Array Wireless Power Transmitters |
| title_sort | effective circuit configuration and control for coil array wireless power transmitters |
| topic | Coil array FPGA-based control multileg inverter optimal current control three-phase system wireless power transfer |
| url | https://ieeexplore.ieee.org/document/10113817/ |
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