Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systemsopen access
- Authors
- Woo, Dong-Hun; Cha, Hwa-Rang; Kim, Rae-Young
- Issue Date
- Nov-2020
- Publisher
- MDPI
- Keywords
- wireless power transfer (WPT) system; omnidirectional WPT system; multi& #8211; output; mutual inductance; resonant network
- Citation
- ENERGIES, v.13, no.21, pp.1 - 15
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENERGIES
- Volume
- 13
- Number
- 21
- Start Page
- 1
- End Page
- 15
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/144406
- DOI
- 10.3390/en13215556
- ISSN
- 1996-1073
- Abstract
- Many studies have been conducted on multi-output systems that transfer power to multiple receivers in conventional planar-type wireless power transfer (WPT) systems; however, few studies and analyses have taken into account the mutual inductance between receivers in multi-output omnidirectional WPT systems. In this paper, the correlation between the mutual inductance between receivers and the power transfer efficiency (PTE) in a multi-output omnidirectional WPT system is analyzed, and a limitation in terms of a reduction in the PTE with an increase in the influence of the mutual inductance between the receivers is presented. To solve this problem, a resonant network design method is proposed to reduce the influence of mutual inductance between receivers, and appropriate canceling capacitor values are selected using the weighted sum method among multi-objective optimization methods. The proposed method is through simulations and experiments, and it presents the potential for improvement in the problems that occur when transferring power to multiple receivers.
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