A Comparati`ve Study of Resonant Frequency Calculation Based on Leakage-Inductance and Self-Inductance for CET System

Recently, the resonance phenomenon in contactless energy transfer (CET) is widely used to deliver power to a load over a relatively large air gap between the transmitter (Tx) and receiver (Rx) coils via magnetic coupling. Since many reactive components in the CET system are contributed to the resonance phenomenon, therefore there are many resonant frequencies. In this paper, a comparative study is made to find the resonant frequency based on leakage-inductance and self-inductance for determining the compensation element values in a series-series (SS) compensated CET system.