Design and characteristics analysis parameter calculation of contact-less power transmission system

This paper proposes the calculation method of magnetic coupling coefficient and electrical parameter of contactless power supply by the 3D finite element method with a variation of the secondary core position. The primary, secondary self and leakage inductances and the capacitances of a resonant circuit are calculated by the finite element analysis results. The magnetic coupling coefficients are obtained also. The power factor is obtained by Or-CAD simulation for the magnetic coupling coefficients and compared.