Auxiliary Based Circular Coil for Wireless Power Transfer System

In a wireless power system, the design of coils plays a crucial job in power transfer. The effectiveness of the coupler depends on shape, size, coupling coefficient, mutual inductance, and the distance between the couplers. This paper presents an innovative coil structure for Wireless Power Transfer (WPT) systems, with a 3D model developed in Ansys Maxwell. The study focuses on evaluating key performance metrics, specifically the coupling coefficient (k) and Mutual inductance (M). Comparative analysis against existing coil designs, such as circular, square, Square with auxiliary, DD, and DD with auxiliary configurations, demonstrates that the proposed coil structure outperforms its counterparts in terms of both coupling coefficients despite having similar dimensions and turn counts. These findings signify the potential for significantly improved WPT system coupling Coefficient and effectiveness with the adoption of this novel coil structure.