A Novel Magnetic Coupling Structure with High Efficiency and Anti-offset Based on Solenoid

For induction power transfer (IPT) system, the ability of anti-offset is one of the important indexes of the system. In this paper, a new anti-offset magnetic coupling structure is proposed, which can significantly improve the stability of the output. At the same time, this paper presents an optimization method for the new type of magnetic coupling structure. In this paper, the magnetic coupling structure is compared with planar circular coil, planar square coil and DD coil in terms of coupling and anti-offset ability. The S / SP compensation topology is used in the simulation model to further improve the anti-offset ability of the system. When the horizontal displacement reaches 40% of the coupling coil, the maximum VFR (voltage fluctuation rate) is 7.21%, and the minimum system efficiency is 89.63%.