A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective Properties
Inductive power transfer (IPT) systems with multiple transmitting coils are mainly used in specific scenarios, such as IPT sharing platforms and dynamic wireless charging of electric vehicles, etc. However, it faces problems of electromagnetic field leakage and low efficiency. A new magnetic field c...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/12/3/653 |
| _version_ | 1797624741200134144 |
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| author | Xu Yang Junfeng Yang Jing Fan Bao Wang Dingzhen Li |
| author_facet | Xu Yang Junfeng Yang Jing Fan Bao Wang Dingzhen Li |
| author_sort | Xu Yang |
| collection | DOAJ |
| description | Inductive power transfer (IPT) systems with multiple transmitting coils are mainly used in specific scenarios, such as IPT sharing platforms and dynamic wireless charging of electric vehicles, etc. However, it faces problems of electromagnetic field leakage and low efficiency. A new magnetic field containment method based on reflective properties is proposed to solve the above shortcomings. Firstly, the reflective properties and performance figures of the IPT system with a unified passive compensation network are described and derived. Then, an S−LCL topology appropriate for the time−varying coupling IPT system is presented, where the IPT system’s transmitter consists of multiple coils that are compatible with one or more moving receivers and is powered by an inverter. Then, magnetic field focusing, power transfer and overall efficiency are analyzed and simulated. Finally, an experimental prototype is built to validate the feasibility of the proposed system. The experimental results show that the proposed method can increase the power transfer of the coupled transmitting coil and reduce the magnetic field leakage of the standby transmitting coils without complex shielding measures, switch, position detection and communication circuits. |
| first_indexed | 2024-03-11T09:47:28Z |
| format | Article |
| id | doaj.art-452f728980734c838002be17ec68202e |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-11T09:47:28Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-452f728980734c838002be17ec68202e2023-11-16T16:29:32ZengMDPI AGElectronics2079-92922023-01-0112365310.3390/electronics12030653A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective PropertiesXu Yang0Junfeng Yang1Jing Fan2Bao Wang3Dingzhen Li4School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Information Engineering, Nanyang Institute of Technology, Nanyang 473004, ChinaSchool of Information Engineering, Nanyang Institute of Technology, Nanyang 473004, ChinaSchool of Information Engineering, Nanyang Institute of Technology, Nanyang 473004, ChinaInductive power transfer (IPT) systems with multiple transmitting coils are mainly used in specific scenarios, such as IPT sharing platforms and dynamic wireless charging of electric vehicles, etc. However, it faces problems of electromagnetic field leakage and low efficiency. A new magnetic field containment method based on reflective properties is proposed to solve the above shortcomings. Firstly, the reflective properties and performance figures of the IPT system with a unified passive compensation network are described and derived. Then, an S−LCL topology appropriate for the time−varying coupling IPT system is presented, where the IPT system’s transmitter consists of multiple coils that are compatible with one or more moving receivers and is powered by an inverter. Then, magnetic field focusing, power transfer and overall efficiency are analyzed and simulated. Finally, an experimental prototype is built to validate the feasibility of the proposed system. The experimental results show that the proposed method can increase the power transfer of the coupled transmitting coil and reduce the magnetic field leakage of the standby transmitting coils without complex shielding measures, switch, position detection and communication circuits.https://www.mdpi.com/2079-9292/12/3/653inductive power transferself−regulating magnetic fieldreflective propertiesmultiple transmitting coilsS−LCL topology |
| spellingShingle | Xu Yang Junfeng Yang Jing Fan Bao Wang Dingzhen Li A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective Properties Electronics inductive power transfer self−regulating magnetic field reflective properties multiple transmitting coils S−LCL topology |
| title | A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective Properties |
| title_full | A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective Properties |
| title_fullStr | A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective Properties |
| title_full_unstemmed | A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective Properties |
| title_short | A Magnetic Field Containment Method for an IPT System with Multiple Transmitting Coils Based on Reflective Properties |
| title_sort | magnetic field containment method for an ipt system with multiple transmitting coils based on reflective properties |
| topic | inductive power transfer self−regulating magnetic field reflective properties multiple transmitting coils S−LCL topology |
| url | https://www.mdpi.com/2079-9292/12/3/653 |
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