Analysis for Research Achievements and Progress Trends of Underwater Electric-Field Coupled Wireless Power Transfer

Wireless power transfer (WPT) can provide ideal solutions for power supply of under water facilities. Firstly, by comparing and analyzing mainstream of the existing underwater wireless power transfer technologies, this paper considers that electric-field coupled power transfer (ECPT) technology have the advantages of applying in underwater occasions, such as flexible in configuration, low in cost, strong in anti-deviation capability, low electromagnetic leakage, low standby loss. This is also the reason why ECPT attracts more and more attentions from researchers all over the world in recent years. Then, in-depth analysis and summary is made for challenges that underwater ECPT technology is facing, and for the latest developments and main research achievements in the ECPT technology field. Based on these, progress trends of underwater ECPT technology in future is given. Finally, conclusion was drawn that underwater ECPT technology would go towards practical use and industrialization under the joint push of numerous researchers in the near future.