The policy of converting vehicles to EV in Europe by 2040 is now spreading around the world. However, in order to promote the EV shift, several problems must be solved. As a major problem, there is a problem of cruising distance caused by the battery capacity and a problem of charging time in the current power supply system. In this study, we propose noncontact power feeding during running as a solution to those problems. It solves the problem of cruising distance and charging time by supplying electricity not only during stoppage but also during driving. In this paper, we proposed an 8 booster coil configuration as a countermeasure against the leakage magnetic field that is a problem in non-contact power feeding system during EV driving. In addition, a small model of 8 booster coils was created and its validity was shown. Using the created scale model, we compared the leakage magnetic field of the existing system and showed its usefulness.
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