Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systems

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...

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Main Authors: Dong-Hun Woo, Hwa-Rang Cha, Rae-Young Kim
Format: Article
Language:English
Published: MDPI AG 2020-10-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/21/5556
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author Dong-Hun Woo
Hwa-Rang Cha
Rae-Young Kim
author_facet Dong-Hun Woo
Hwa-Rang Cha
Rae-Young Kim
author_sort Dong-Hun Woo
collection DOAJ
description 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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spelling doaj.art-632e17ca270441ba9b1a249b2fc5e8652023-11-20T18:19:29ZengMDPI AGEnergies1996-10732020-10-011321555610.3390/en13215556Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer SystemsDong-Hun Woo0Hwa-Rang Cha1Rae-Young Kim2The Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, KoreaThe Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, KoreaThe Department of Electrical and Biomedical Engineering, Hanyang University, Seoul 04763, KoreaMany 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.https://www.mdpi.com/1996-1073/13/21/5556wireless power transfer (WPT) systemomnidirectional WPT systemmulti–outputmutual inductanceresonant network
spellingShingle Dong-Hun Woo
Hwa-Rang Cha
Rae-Young Kim
Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systems
Energies
wireless power transfer (WPT) system
omnidirectional WPT system
multi–output
mutual inductance
resonant network
title Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systems
title_full Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systems
title_fullStr Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systems
title_full_unstemmed Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systems
title_short Resonant Network Design Method to Reduce Influence of Mutual Inductance between Receivers in Multi-Output Omnidirectional Wireless Power Transfer Systems
title_sort resonant network design method to reduce influence of mutual inductance between receivers in multi output omnidirectional wireless power transfer systems
topic wireless power transfer (WPT) system
omnidirectional WPT system
multi–output
mutual inductance
resonant network
url https://www.mdpi.com/1996-1073/13/21/5556
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AT hwarangcha resonantnetworkdesignmethodtoreduceinfluenceofmutualinductancebetweenreceiversinmultioutputomnidirectionalwirelesspowertransfersystems
AT raeyoungkim resonantnetworkdesignmethodtoreduceinfluenceofmutualinductancebetweenreceiversinmultioutputomnidirectionalwirelesspowertransfersystems