Korea Advanced Institute of Science and Technology

Seung-Young Ahn

Dong Ho Cho

Joung Ho Kim

Yang Bae Chun

Ji-Yun Ryu

Mi-Joo Kim

Gu Ho Jeong

Eun-Jung Kim

Gyeng-Chul Kim

Il-Song Han

Jung-Ho Kim

Chun Taek Rim

Nam Pyo Suh

Seong Jeub Jeon

Ii-Song Han

The present invention relates to a power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in a resonant frequency. More particularly, the present invention relates to a power supply and pickup system capable of maintaining the stability of efficiency of transmitting power to a pickup device from a power supply device even when a voltage or current changes by the variation in a resonant frequency. According to the power supply and pickup system of the present invention, Q-factor of a power supply and pickup system is set to a low value, a stability of efficiency of transmitting power to a pickup device from a power supply device is maintained even when a voltage of current changes by the variation in a resonant frequency.

Power supply and pickup system capable of maintaining stability of transmission efficiency despite changes in resonant frequency

Provided is a method for designing a current supply device for wirelessly supplying power to a vehicle having a current collection device. In the design method, the gap between the two adjacent magnetic poles of the current supply device is received as input and then the gap between the current supply device and the current collection device is determined based on the gap between the two magnetic poles. Next, the magnitude of the power to be supplied to the current supply device is determined based on the value required with respect to the magnitude of the magnetic field and the gap between the current supply device and the current collection device. According to the design method, current supply device can easily be designed since various functional requirements are decoupled from each other.

Method and device for designing a current supply and collection device for a transportation system using an electric vehicle

Growing community of inventors

Daejeon, South Korea

Seung-Young Ahn