Low Leakage Electromagnetic Field Level and High Efficiency Using a Novel Hybrid Loop-Array Design for Wireless High Power Transfer System
| Autor: | Gyeyoung Park, Seungtaek Jeong, Yeonje Cho, Chulhun Seo, Seongsoo Lee, Joungho Kim, Hongseok Kim, Seokwoo Hong, Dong-Hyun Kim, Chiuk Song, Jinwook Song, Kyungjun Cho, Hyunsuk Lee, Junyong Park, Seungyoung Ahn |
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| Rok vydání: | 2019 |
| Předmět: |
Electromagnetic field
Physics 020208 electrical & electronic engineering 02 engineering and technology Inductance Control and Systems Engineering Electromagnetic coil Electromagnetic shielding 0202 electrical engineering electronic engineering information engineering Electronic engineering Maximum power transfer theorem Wireless power transfer Electrical and Electronic Engineering Electrical impedance Leakage (electronics) |
| Zdroj: | IEEE Transactions on Industrial Electronics. 66:4356-4367 |
| ISSN: | 1557-9948 0278-0046 |
| DOI: | 10.1109/tie.2018.2851988 |
| Popis: | In this paper, we first proposed a novel hybrid loop array (HLA) for low leakage electromagnetic field (EMF) level and high efficiency in a wireless high power transfer system. The proposed HLA effectively enhances the system efficiency and shields leakage EMF in a wireless power transfer (WPT) system using kHz range resonant frequency. The key originality of the proposed HLA is the combination of two types of loop coil; shielding loop coil (SLC) and amplifying loop coil (ALC). SLCs reduce leakage EMF, and ALCs significantly enhance the magnetic field from a Tx coil. The simulation and experiment results show that the proposed solution successfully overcomes the limitations of the existing solutions. Analytical modeling and design procedure are introduced and discussed. In addition, the experimental verification of the simulation result is included. We first designed and modeled an HLA considering the coupling effect of neighboring loop coils to evaluate its efficiency and leakage EMF. With the proposed HLA, we demonstrated a 9.36% improvement in the efficiency and 3 dBm reduction in the leakage EMF near the WPT system. |
| Databáze: | OpenAIRE |
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