Journal of electromagnetic engineering and science

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Wireless Power Transfer Technology in On-Line Electric Vehicle

  • Ahn, Seung-Young (Department of Electrical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Chun, Yang-Bae (On-Line Electric Vehicle Project, Korea Advanced Institute of Science and Technology) ;
  • Cho, Dong-Ho (Department of Electrical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kim, Joung-Ho (Department of Electrical Engineering, Korea Advanced Institute of Science and Technology)
  • Received : 2011.09.05
  • Published : 2011.09.30
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Abstract

The On-line Electric Vehicle (OLEV) is an electric transport system in which the vehicle's power is transferred wirelessly from power lines underneath the surface of the road. Advantages of the OLEV include reducing battery size and cost to about 20 percent of that of conventional battery-powered electric vehicles, thereby minimizing the vehicle's weight and price, as well as the cost of charging the system. In this paper, we introduce a wireless power transfer mechanism to maximize the electrical performance of the power transfer system. Power transfer capacity, power transfer efficiency, and magnitude of leakage in the electromagnetic field (EMF) are analyzed, and the optimization methodology of the design parameters is discussed.

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