Sensitivity Analysis of Inductive Power Transfer Systems with Voltage-Fed Compensation Topologies

Jianghua Lu, Guorong Zhu, Huai Wang, Fei Lu, Jin Jiang, Chunting Chris Mi

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    38 Scopus citations


    The output characteristics and the transfer efficiencies of inductive power transfer (IPT) systems are affected by (but not limited to) the variation of parameters such as, variable load, misalignment between the primary and secondary coils, and resonance frequency detuning. This paper first analyzes the resonant conditions of all voltage-fed compensation topologies in IPT systems to achieve the load-independent voltage transfer characteristic at load-independent zero phase angle frequency. With these conditions, the parameters sensitivity to the key performance factors of the S-SP, LCC-S, LCC-P, and double-sided LCC compensated IPT systems are systematically investigated when considering the losses in coils and compensation networks. Comparisons of the quantitative sensitivity analysis and experimental results for all IPT systems are made in terms of the voltage transfer ratio and efficiency. These analyses can provide guidance for the selection of superior compensation networks to minimize the additional converter effort and simplify the control algorithm of closed-loop IPT systems.

    Original languageBritish English
    Article number8663433
    Pages (from-to)4502-4513
    Number of pages12
    JournalIEEE Transactions on Vehicular Technology
    Issue number5
    StatePublished - May 2019


    • Compensation topology
    • constant voltage
    • Inductive Power Transfer (IPT)
    • parametric uncertainty
    • sensitivity
    • Zero Phase Angle (ZPA)


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