A Multi-Layer-Stacked Structure of Underwater Capacitive Power Transfer System

this paper proposes a novel multi-layer-stacked structure (MLSS) designed for underwater capacitive power transfer (CPT) system. The MLSS offers a notable enhancement in coupling capacitance for couplers, while maintaining the same plate area and transfer distance. A new capacitive coupling model is developed, considering the coupling capacitance of water medium and its equivalent parallel resistance (EPR). Based on the model, the impact of MLSS on coupling coupler is analyzed. This model elucidates how varying water salinities affect the coupler. Through model analysis and experimental validation, the CPT system with MLLS coupler is suitable for underwater environments