In an inductive wireless power transfer system, unavoidable lateral misalignment between the transmitter and the receiver leads to reactive power, which reduces the powertransfer-efficiency and limits the maximum output power under given input voltage. A tunable capacitor provides access to achieve low reactive power and maintain high power-transfer-efficiency. In this paper, the effects of misalignment on power transfer performance is investigated. A conventional capacitor tuning method is analyzed, and its limitations are identified. An innovative low loss online capacitor tuning method is proposed to automatically achieve low reactive power and maintain high power-transfer-efficiency under misalignment. The proposed designs are evaluated via simulation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Low Loss Online Capacitor Tuning Method for Reactive Power Reduction of Inductive Wireless Power Transfer System Under Misalignment


    Contributors:
    Zhu, Guangqi (author) / Lorenz, Robert D. (author) / Diao, Fei (author) / Zhao, Yue (author)


    Publication date :

    2020-06-01


    Size :

    258392 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    Misalignment tolerant hybrid wireless power transfer system

    THRIMAWITHANA DULEEPA JAYANATH / ZHAO LEI | European Patent Office | 2022

    Free access




    Inductive wireless power transfer systems

    KAUTZ RICHARD WILLIAM / ALTUNYURT NEVIN | European Patent Office | 2019

    Free access