A study on load modulation for underwater wireless power transfer

Duarte, Candido; Gonçalves, Francisco Rocha; Ressurreicao, Tiago; Gomes, Rui; Correia, Vasco; Gonçalves, Ricardo; Santos, Rafael dos

doi:10.1109/oceanse.2017.8085010

Cited by 6 publications

(2 citation statements)

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“…Some researchers have demonstrated accurate and highspeed data transfer using the same IWPT hardware [128,130]. Others (see [67,[131][132][133]) have communicated the information by modulating the secondary parameters and sensing their effect on the primary side. This method eliminates the requirement for additional hardware for data transfer, but it requests additional circuitry for load modulation and detection.…”

Section: Communication and Data Transfermentioning

confidence: 99%

Review of Crucial Problems of Underwater Wireless Power Transmission

Liu

Sun

et al. 2022

Electronics

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In order to solve the problem of energy supply for underwater equipment, wireless power transmission technology is becoming a new way of underwater power transmission. It has incomparable technical advantages over traditional power supply method, and can effectively improve the safety, reliability, convenience and concealment of power supply for underwater equipment. The WPT has a natural electrical isolation between the primary and secondary sides to ensure safe charging in an underwater environment. This breakthrough technology greatly facilitates power transmission in the deep sea. However, current transmission power and efficiency levels are not at the level of WPT systems in air. Based on the analysis of the development status of underwater wireless power transmission technology, this paper firstly puts forward the challenges of underwater wireless power transmission, and summarizes the electromagnetic coupler structure, underwater docking mode, compensation topology, control method and eddy current loss. The current research hotspots in the field of underwater wireless power transmission are summarized and analyzed. Finally, according to the development trend of technology, the urgent technical problems in underwater wireless power transmission are expounded.

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Section: Communication and Data Transfermentioning

confidence: 99%

Review of Crucial Problems of Underwater Wireless Power Transmission

Liu

Sun

et al. 2022

Electronics

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“…Fig. 1a illustrates this wireless power transfer (WPT) scenario in which the battery-operated AUV comprises a power inverter responsible for driving a coil under a specific resonance operation [3]- [5]. The inductive coupling is performed with a second coil, at the sensor, which rectifies the delivered power.…”

Section: Introductionmentioning

confidence: 99%

Experimental Evaluation of Coupling Coils for Underwater Wireless Power Transfer

Duarte

Gonçalves

Silva

et al. 2019

2019 IEEE Wireless Power Transfer Conference (WPTC)

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In this work we focus on the influence of salt water as the medium between two coupling coils to design a wireless power transfer system. An electrical circuit model and an adequate characterization approach is presented to account for the power losses in the conductive medium. Optimum values for the load and efficiency of the power link are determined. Experimental results are provided to compare the performance of the coupling coils between different coupling mediums (air, fresh and salt water).

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