Future wireless power transportation system

The wireless power transfer technology is a recent hot issue for microwave engineers and power electronics engineers. The application expands from the portable mobile devices in the market to the solar power satellite in the future. The transportation system is one of the promising markets for wireless power transfer technology because people want safer, cheaper, and more convenience transportation which matches to the target of wireless power transfer technology. In this paper, we review electric characteristics of the wireless charging electric vehicle and evaluate the cost effectiveness of the small-battery system. The application of wireless power transfer technology to railway system is analyzed in the view of energy cost and stability.