Analytical Equivalent Circuit Model for Series-Compensated Wireless Power Transfer Systems

D. Benatti, G. Migliazza, R. Fornari, E. Lorenzani, G. Buticchi

    Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

    Abstract

    Wireless power transfer systems are characterized by a loosely coupled magnetic circuit and a power electronics interface. For the optimization of the system power factor, a compensation circuit composed of capacitors is adopted to form a resonant tank with the power coil. The behavior of the overall circuit in terms of power transfer and current/voltage waveform depends on several parameters, which can make the analysis and optimization of the system complex. This paper proposes an analytical derivation of an equivalent RLC system that greatly simplify the design in terms of Zero Voltage Switching (ZVS) regions. In addition to this, the RLC equivalent circuit allows an easy analytic calculation of the output power depending on all WPT system parameters. The analytical model will be validated by simulation results.

    Original languageEnglish
    Title of host publicationProceedings
    Subtitle of host publicationIECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
    PublisherIEEE Computer Society
    Pages4177-4182
    Number of pages6
    ISBN (Electronic)9781728148786
    DOIs
    Publication statusPublished - Oct 2019
    Event45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 - Lisbon, Portugal
    Duration: 14 Oct 201917 Oct 2019

    Publication series

    NameIECON Proceedings (Industrial Electronics Conference)
    Volume2019-October

    Conference

    Conference45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
    Country/TerritoryPortugal
    CityLisbon
    Period14/10/1917/10/19

    Keywords

    • Wireless Power Transfer
    • analytical model

    ASJC Scopus subject areas

    • Control and Systems Engineering
    • Electrical and Electronic Engineering

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