Dynamic Wireless Power Transfer System for Electric Vehicles Employing Multiplexing LCC Modules With Individual Transmitters

Shaocong Zhou, Chunbo Zhu, Shumei Cui, Zhiyuan Wang, Shaoze Zhou, C. C. Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)

Abstract

Dynamic wireless power transfer (DWPT) of electric vehicles employing individual transmitters is getting popular owing to the advantages of high efficiency and less unwanted magnetic field emissions. However, too many power supply devices and passive components of compensation networks will make individual-transmitter-type DWPT systems under intense cost pressure for a long charging lane. Besides, circuit parameters of different transmitters will be different due to unignored component errors. Therefore, in this paper, a cost-reducing multiplexing LCC module (MLM) is proposed, and the effects of passive component errors are considered. An MLM makes unenergized transmitter work as a part of LCC compensation network resulting in no additional inductor. Simultaneously, one power inverter is shared by two transmitters in an MLM and 50% of inverters can be reduced. A novel distribution method and matched controlling storage of MLMs are proposed so that any two adjacent transmitters can be controlled independently and simultaneously. Due to passive component errors, unwanted reactive load will be placed on the inverter, and different transmitters will have different output power even in the same coupling and loading condition. A voltage adjustment method and a redistribution of passive components for MLMs are proposed to solve these problems. At last, a 6-kW-level laboratory scale prototype has been constructed and tested.

Original languageEnglish
Article number8491361
Pages (from-to)62514-62527
Number of pages14
JournalIEEE Access
Volume6
DOIs
Publication statusPublished - 2018
Externally publishedYes

Keywords

  • Component errors
  • dynamic wireless power transfer (DWPT)
  • individual transmitters
  • LCC compensation network

ASJC Scopus subject areas

  • General Computer Science
  • General Materials Science
  • General Engineering

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