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Experimental Investigation of the Eddy-Current and Dielectric Loss of Underwater IPT System
Conference proceeding

Experimental Investigation of the Eddy-Current and Dielectric Loss of Underwater IPT System

Yao Wang, Amr Mostafa, Zilong Zheng, Hua Zhang, Chong Zhu and Fei Lu
2023 IEEE Energy Conversion Congress and Exposition (ECCE), pp 6371-6375
29 Oct 2023

Abstract

autonomous underwater vehicle (AUV) Dielectric loss measurement Dielectric losses eddy-current loss Frequency measurement inductive power transfer (IPT) magnetic field Magnetic flux Power measurement Switching frequency Underwater cables
Inductive power transfer (IPT) technology has shown great potential in autonomous underwater vehicle (AUV) charging due to the removal of troublesome charging cables and no exposed metal plugs. However, the alternating magnetic field of the inductive charging system will induce extra eddy-current and dielectric loss in seawater due to plenty of ions and polar molecules of water. In this paper, an experimental investigation on extra power loss in saltwater is conducted under different magnetic flux intensities B and frequencies f s . Experimental results reveal the exponential relationship of the extra power loss in saltwater with B and f s with exponential coefficients of 2.0 and 2.165, and an empirical equation is developed to quantify the extra power loss, which contributes to the optimization and design of the underwater IPT system.

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