This paper presents an eddy current loss analysis method in underwater wireless power transfer (UWPT). Firstly, this paper uses analytical solution method to analyze the eddy current loss in the seawater. Also, the influence of the current and working frequency on the eddy current loss is discussed to analyze the eddy current loss. Then, based the eddy current loss analysis and coil mutual inductance model, a coil mutual inductance model with the eddy current loss is built. Finally, a 1kW underwater WPT prototype is developed. Finite element simulation and experimental results have proved that the analysis of the eddy current loss and the coils mutual inductance model with the eddy current loss is effective.
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Liu et al. (2020) studied this question.
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