Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances
An omnidirectional magnetically coupled resonant wireless power transfer (WPT) system based on rotary transmitting coil is presented. The proposed scheme can ease the variations of the transfer efficiency and output power caused by the deviation of transfer direction, and improve the unbalanced powe...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-04-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1996-1073/11/4/878 |
| _version_ | 1811187573220966400 |
|---|---|
| author | Gongjun Liu Bo Zhang Wenxun Xiao Dongyuan Qiu Yanfeng Chen Jiu Guan |
| author_facet | Gongjun Liu Bo Zhang Wenxun Xiao Dongyuan Qiu Yanfeng Chen Jiu Guan |
| author_sort | Gongjun Liu |
| collection | DOAJ |
| description | An omnidirectional magnetically coupled resonant wireless power transfer (WPT) system based on rotary transmitting coil is presented. The proposed scheme can ease the variations of the transfer efficiency and output power caused by the deviation of transfer direction, and improve the unbalanced power distribution phenomenon between the receivers, which are still not fully achieved in current WPT systems. The modified coupled-mode model is built first to describe the non-rotary multi-receiver WPT system. The analysis indicates that the transfer efficiency and output power of the system can be expressed as functions of the deviation angle between the transmitting coil and receiving coil, which has a non-negligible influence on the system performances. Then, the modified high order coupled-mode model containing time-varying parameters about the deviation angle is derived for the proposed omnidirectional WPT system. Theoretical analysis and simulated results indicate that this system can transfer power to multiple receivers around the transmitter synchronously and evenly, which is very suitable for wireless charging for household appliances indoors. The scheme feasibility and theoretical analysis are verified by experimental results. |
| first_indexed | 2024-04-11T14:04:39Z |
| format | Article |
| id | doaj.art-3b1c0111f3124e4e8de22689e441c379 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T14:04:39Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-3b1c0111f3124e4e8de22689e441c3792022-12-22T04:19:55ZengMDPI AGEnergies1996-10732018-04-0111487810.3390/en11040878en11040878Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household AppliancesGongjun Liu0Bo Zhang1Wenxun Xiao2Dongyuan Qiu3Yanfeng Chen4Jiu Guan5School of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaSchool of Electric Power Engineering, South China University of Technology, Guangzhou 510641, ChinaAn omnidirectional magnetically coupled resonant wireless power transfer (WPT) system based on rotary transmitting coil is presented. The proposed scheme can ease the variations of the transfer efficiency and output power caused by the deviation of transfer direction, and improve the unbalanced power distribution phenomenon between the receivers, which are still not fully achieved in current WPT systems. The modified coupled-mode model is built first to describe the non-rotary multi-receiver WPT system. The analysis indicates that the transfer efficiency and output power of the system can be expressed as functions of the deviation angle between the transmitting coil and receiving coil, which has a non-negligible influence on the system performances. Then, the modified high order coupled-mode model containing time-varying parameters about the deviation angle is derived for the proposed omnidirectional WPT system. Theoretical analysis and simulated results indicate that this system can transfer power to multiple receivers around the transmitter synchronously and evenly, which is very suitable for wireless charging for household appliances indoors. The scheme feasibility and theoretical analysis are verified by experimental results.http://www.mdpi.com/1996-1073/11/4/878coupled mode modelmagnetically coupled resonantomnidirectionalrotary coilwireless power transfer (WPT) |
| spellingShingle | Gongjun Liu Bo Zhang Wenxun Xiao Dongyuan Qiu Yanfeng Chen Jiu Guan Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances Energies coupled mode model magnetically coupled resonant omnidirectional rotary coil wireless power transfer (WPT) |
| title | Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances |
| title_full | Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances |
| title_fullStr | Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances |
| title_full_unstemmed | Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances |
| title_short | Omnidirectional Wireless Power Transfer System Based on Rotary Transmitting Coil for Household Appliances |
| title_sort | omnidirectional wireless power transfer system based on rotary transmitting coil for household appliances |
| topic | coupled mode model magnetically coupled resonant omnidirectional rotary coil wireless power transfer (WPT) |
| url | http://www.mdpi.com/1996-1073/11/4/878 |
| work_keys_str_mv | AT gongjunliu omnidirectionalwirelesspowertransfersystembasedonrotarytransmittingcoilforhouseholdappliances AT bozhang omnidirectionalwirelesspowertransfersystembasedonrotarytransmittingcoilforhouseholdappliances AT wenxunxiao omnidirectionalwirelesspowertransfersystembasedonrotarytransmittingcoilforhouseholdappliances AT dongyuanqiu omnidirectionalwirelesspowertransfersystembasedonrotarytransmittingcoilforhouseholdappliances AT yanfengchen omnidirectionalwirelesspowertransfersystembasedonrotarytransmittingcoilforhouseholdappliances AT jiuguan omnidirectionalwirelesspowertransfersystembasedonrotarytransmittingcoilforhouseholdappliances |