The Efficiency of an Underwater Inductive Charging System for AUVs Based on Truncated Coils

This paper proposes an underwater inductive charging system of autonomous underwater vehicles (AUVs) with the scope of extending their autonomy. The novelty of the proposed solution consists in the geometry of the power system - based on truncated coils, adapted to the hydrodynamic geometry of the AUV. The analysis of the inductively coupled resonant circuits is performed by analytical method, whereas the study of the magnetic field generated by the transmission coil is performed by means of numerical software tools. The study is completed by experimentally determining the power transfer efficiency of the truncated coils system.

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