Abstract
A novel wireless power system called Via-Wheel Power Transfer (V-WPT) [1] [2] is expected to have significant advantages of long cruising, no charging time, and lightweight for Electric vehicles (EVs). However, to apply V-WPT systems to EVs, there are lots of problems should to be solved, such as the problem how to get maximum efficiency by adjusting the matching circuit for the load, the safety problem if a human is sitting in car and so on. In this paper, we will focus the safety problem. The electromagnetic field distribution of V-WPT system and the Specific Absorption Ratio (SAR) of human body who is near to V-WPT system will be analyzed by using an electromagnetic simulation soft. The average SAR in 10g of tissue will be presented and compared with the safety guidelines to discuss if the V-WPT system is safe for human body or not for different loads of receiving element.
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