Expandable N-Legged Converter to Drive Closely Spaced Multi Transmitter Wireless Power Transfer Systems for Dynamic Charging

Research output: Contribution to journalArticleScientificpeer-review


Research units

  • Queensland University of Technology
  • The University of Auckland


Expandable and flexible wireless power transfer (WPT) systems have been in demand in numerous industry applications, especially for dynamic chargers in electric vehicles. Those systems, however, brings about certain technical issues such as modulation technique and topology of the transmitter-side, and transferred power profile of the transmitters. In this paper, a new converter topology to drive closely spaced segmented Dynamic Wireless Power Transfer (DWPT) systems is proposed. The proposed converter can be expanded to cater for different number of transmitters, and it can provide a uniform transferred power profile throughout the path of transmitter coils, known as track. Furthermore, this study focuses on analyzing the operation of the converter and the effect of closely spaced transmitters over its operation. To show the effectiveness of the proposed topology and its modulation technique, the converter is simulated and experimentally tested using a laboratory prototype. The results are compared and analyzed, and their close agreement shows the validity of the proposed technique.


Original languageEnglish
Article number8827310
Pages (from-to)3794-3806
JournalIEEE Transactions on Power Electronics
Issue number4
Publication statusPublished - Apr 2020
MoE publication typeA1 Journal article-refereed

    Research areas

  • Cross Coupling, Coordination Factor, Electric Vehicles, Expandable Wireless Power Transfer System, Inductive Charging, Magnetic Profile, Mode Changing Transients, Multi-Transmitter Wireless Power Transfer Systems, Transferred Power Profile

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