Modelling Single-Wire Capacitive Power Transfer System with Strong Coupling to Ground

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dc.contributor.author Zou, Lixiang en
dc.contributor.author Zhu, Qi en
dc.contributor.author Van Neste, C en
dc.contributor.author Hu, Aiguo en
dc.date.accessioned 2020-04-09T00:54:54Z en
dc.date.issued 2019 en
dc.identifier.citation IEEE Journal of Emerging and Selected Topics in Power Electronics 9 pages 2019 en
dc.identifier.issn 2168-6777 en
dc.identifier.uri http://hdl.handle.net/2292/50320 en
dc.description.abstract This paper presents the modelling of a single-wire Capacitive Power Transfer (CPT) system to reveal its power transfer mechanism with strong coupling to ground. An equivalent circuit is proposed by treating the ground as a quasi-conductive medium. The parameters of the equivalent circuit model are determined, including the capacitance between the coupling plates of the CPT system, the single wire inductance and the capacitance between the wire and ground, and the ground equivalent impedance. The maximum power transfer capacity corresponding to the system’s resonant frequency is analyzed using the proposed model to guide the system tuning design. A prototype single-wire CPT system is built, and CST (Computer Simulation Technology) simulation is undertaken to show the electric and magnetic field distributions, as well as the Poynting vector indicating the direction and magnitude of power flow in the system. It is shown that the output voltage and the power predicted by the theoretical model are in a good agreement with the simulation and practical results under frequency and load variations. Different length of the dangling single wire at the secondary side of the CPT system is also investigated to validate the model with different levels of ground effect. en
dc.publisher Institute of Electrical and Electronics Engineers en
dc.relation.ispartofseries IEEE Journal of Emerging and Selected Topics in Power Electronics en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights © 2000 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.rights.uri https://www.ieee.org/publications/rights/author-posting-policy.html en
dc.title Modelling Single-Wire Capacitive Power Transfer System with Strong Coupling to Ground en
dc.type Journal Article en
dc.identifier.doi 10.1109/JESTPE.2019.2942034 en
dc.rights.holder Copyright: IEEE en
pubs.author-url https://ieeexplore.ieee.org/document/8843977 en
dc.rights.accessrights http://purl.org/eprint/accessRights/OpenAccess en
pubs.subtype Article en
pubs.elements-id 795372 en
pubs.org-id Engineering en
pubs.org-id Department of Electrical, Computer and Software Engineering en
dc.identifier.eissn 2168-6785 en
pubs.record-created-at-source-date 2020-02-26 en


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