An Automatic Coil Design Method for Wireless Power Transfer Systems by Current Distribution Analysis

The reduction of coil design cost is essential to integrating wireless power transfer (WPT) systems in electronic devices. However, the power transfer efficiency of WPT systems is influenced by operating conditions, such as the surrounding material and compatibility between transmitter and receiver...

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Main Authors: Daisuke Kobuchi, Misaki Fujishiro, Hiroyuki Morikawa, Yoshiaki Narusue
Format: Article
Language:English
Published: IEEE 2023-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10237215/
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author Daisuke Kobuchi
Misaki Fujishiro
Hiroyuki Morikawa
Yoshiaki Narusue
author_facet Daisuke Kobuchi
Misaki Fujishiro
Hiroyuki Morikawa
Yoshiaki Narusue
author_sort Daisuke Kobuchi
collection DOAJ
description The reduction of coil design cost is essential to integrating wireless power transfer (WPT) systems in electronic devices. However, the power transfer efficiency of WPT systems is influenced by operating conditions, such as the surrounding material and compatibility between transmitter and receiver coils. Further, experienced engineers are faced with the task of adjusting coil parameters using trial and error methods, which is time-consuming. To overcome this problem, we propose a general coil design method based on a current distribution analysis. This design method comprises a two-dimensional current distribution calculation method for the design of a highly efficient coil and coil layout determination method based on the current distribution. We design a coil attached to a metal plate and validate through simulations and experiments that the proposed design achieves the highest power transfer efficiency at 6.78 MHz among multiple coils designed by sweeping design parameters.
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spelling doaj.art-4e79d185dd794809a7fb8e281994e9122023-09-11T23:02:04ZengIEEEIEEE Access2169-35362023-01-0111946139462210.1109/ACCESS.2023.331104110237215An Automatic Coil Design Method for Wireless Power Transfer Systems by Current Distribution AnalysisDaisuke Kobuchi0https://orcid.org/0000-0002-2516-0065Misaki Fujishiro1Hiroyuki Morikawa2https://orcid.org/0000-0001-8628-3109Yoshiaki Narusue3https://orcid.org/0000-0001-7957-0839Graduate School of Engineering, The University of Tokyo, Tokyo, JapanGraduate School of Engineering, The University of Tokyo, Tokyo, JapanGraduate School of Engineering, The University of Tokyo, Tokyo, JapanGraduate School of Engineering, The University of Tokyo, Tokyo, JapanThe reduction of coil design cost is essential to integrating wireless power transfer (WPT) systems in electronic devices. However, the power transfer efficiency of WPT systems is influenced by operating conditions, such as the surrounding material and compatibility between transmitter and receiver coils. Further, experienced engineers are faced with the task of adjusting coil parameters using trial and error methods, which is time-consuming. To overcome this problem, we propose a general coil design method based on a current distribution analysis. This design method comprises a two-dimensional current distribution calculation method for the design of a highly efficient coil and coil layout determination method based on the current distribution. We design a coil attached to a metal plate and validate through simulations and experiments that the proposed design achieves the highest power transfer efficiency at 6.78 MHz among multiple coils designed by sweeping design parameters.https://ieeexplore.ieee.org/document/10237215/Coil designcurrent distributionlayout optimizationmagnetic couplingwireless power transfer
spellingShingle Daisuke Kobuchi
Misaki Fujishiro
Hiroyuki Morikawa
Yoshiaki Narusue
An Automatic Coil Design Method for Wireless Power Transfer Systems by Current Distribution Analysis
IEEE Access
Coil design
current distribution
layout optimization
magnetic coupling
wireless power transfer
title An Automatic Coil Design Method for Wireless Power Transfer Systems by Current Distribution Analysis
title_full An Automatic Coil Design Method for Wireless Power Transfer Systems by Current Distribution Analysis
title_fullStr An Automatic Coil Design Method for Wireless Power Transfer Systems by Current Distribution Analysis
title_full_unstemmed An Automatic Coil Design Method for Wireless Power Transfer Systems by Current Distribution Analysis
title_short An Automatic Coil Design Method for Wireless Power Transfer Systems by Current Distribution Analysis
title_sort automatic coil design method for wireless power transfer systems by current distribution analysis
topic Coil design
current distribution
layout optimization
magnetic coupling
wireless power transfer
url https://ieeexplore.ieee.org/document/10237215/
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