A Review on the Recent Development of Capacitive Wireless Power Transfer Technology

Capacitive power transfer (CPT) technology is an effective and important alternative to the conventional inductive power transfer (IPT). It utilizes high-frequency electric fields to transfer electric power, which has three distinguishing advantages: negligible eddy-current loss, relatively low cost...

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Main Authors: Fei Lu, Hua Zhang, Chris Mi
Format: Article
Language:English
Published: MDPI AG 2017-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/10/11/1752
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author Fei Lu
Hua Zhang
Chris Mi
author_facet Fei Lu
Hua Zhang
Chris Mi
author_sort Fei Lu
collection DOAJ
description Capacitive power transfer (CPT) technology is an effective and important alternative to the conventional inductive power transfer (IPT). It utilizes high-frequency electric fields to transfer electric power, which has three distinguishing advantages: negligible eddy-current loss, relatively low cost and weight, and excellent misalignment performance. In recent years, the power level and efficiency of CPT systems has been significantly improved and has reached the power level suitable for electric vehicle charging applications. This paper reviews the latest developments in CPT technology, focusing on two key technologies: the compensation circuit topology and the capacitive coupler structure. The comparison with the IPT system and some critical issues in practical applications are also discussed. Based on these analyses, the future research direction can be developed and the applications of the CPT technology can be promoted.
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spelling doaj.art-f25ff537aa064f30830b286ce83552a82022-12-22T02:12:15ZengMDPI AGEnergies1996-10732017-11-011011175210.3390/en10111752en10111752A Review on the Recent Development of Capacitive Wireless Power Transfer TechnologyFei Lu0Hua Zhang1Chris Mi2Department of Electrical and Computer Engineering, San Diego State University, San Diego, CA 92182, USADepartment of Electrical and Computer Engineering, San Diego State University, San Diego, CA 92182, USADepartment of Electrical and Computer Engineering, San Diego State University, San Diego, CA 92182, USACapacitive power transfer (CPT) technology is an effective and important alternative to the conventional inductive power transfer (IPT). It utilizes high-frequency electric fields to transfer electric power, which has three distinguishing advantages: negligible eddy-current loss, relatively low cost and weight, and excellent misalignment performance. In recent years, the power level and efficiency of CPT systems has been significantly improved and has reached the power level suitable for electric vehicle charging applications. This paper reviews the latest developments in CPT technology, focusing on two key technologies: the compensation circuit topology and the capacitive coupler structure. The comparison with the IPT system and some critical issues in practical applications are also discussed. Based on these analyses, the future research direction can be developed and the applications of the CPT technology can be promoted.https://www.mdpi.com/1996-1073/10/11/1752capacitive power transferwireless power transferelectric fieldselectric vehicle
spellingShingle Fei Lu
Hua Zhang
Chris Mi
A Review on the Recent Development of Capacitive Wireless Power Transfer Technology
Energies
capacitive power transfer
wireless power transfer
electric fields
electric vehicle
title A Review on the Recent Development of Capacitive Wireless Power Transfer Technology
title_full A Review on the Recent Development of Capacitive Wireless Power Transfer Technology
title_fullStr A Review on the Recent Development of Capacitive Wireless Power Transfer Technology
title_full_unstemmed A Review on the Recent Development of Capacitive Wireless Power Transfer Technology
title_short A Review on the Recent Development of Capacitive Wireless Power Transfer Technology
title_sort review on the recent development of capacitive wireless power transfer technology
topic capacitive power transfer
wireless power transfer
electric fields
electric vehicle
url https://www.mdpi.com/1996-1073/10/11/1752
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