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J. Electromagn. Eng. Sci > Volume 11(3); 2011 > Article
Journal of the Korean Institute of Electromagnetic and Science 2011;11(3):174-182.
DOI: https://doi.org/10.5515/JKIEES.2011.11.3.174   
Wireless Power Transfer Technology in On-Line Electric Vehicle
Seung-Young Ahn1, Yang-Bae Chun2, Dong-Ho Cho1, Joung-Ho Kim1
1Department of Electrical Engineering, Korea Advanced Institute of Science and Technology
2On-Line Electric Vehicle Project, Korea Advanced Institute of Science and Technology
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.
Key words: Wireless Power Transfer, On-Line Electric Vehicle, Electromagnetic Field, Shielding, Optimization


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