Experimental Evaluation of Coupling Coils for Underwater Wireless Power Transfer

Duarte, Candido; Gonçalves, Francisco Rocha; Silva, Miguel; Correia, Vasco; Pessoa, L. M.

doi:10.1109/wptc45513.2019.9055518

Cited by 12 publications

(7 citation statements)

References 8 publications

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“…The main challenge resides in the influence of the medium. For example, the widely used IPT technology has a reduced efficiency in salt water compared to air [ 102 ]. A UGV equipped with, e.g., mecanum or omnidirectional wheels, can serve as a flexible solution for autonomously recharging devices located on the ground.…”

Section: Range Power and Efficiency-increasing Technologiesmentioning

confidence: 99%

Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases

Mulders¹,

Delabie²,

Lecluyse³

et al. 2022

Sensors

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Wireless power transfer provides a most convenient solution to charge devices remotely and without contacts. R&D has advanced the capabilities, variety, and maturity of solutions greatly in recent years. This survey provides a comprehensive overview of the state of the art on different technological concepts, including electromagnetic coupled and uncoupled systems and acoustic technologies. Solutions to transfer mW to MW of power, over distances ranging from millimeters to kilometers, and exploiting wave concepts from kHz to THz, are covered. It is an attractive charging option for many existing applications and moreover opens new opportunities. Various technologies are proposed to provide wireless power to these devices. The main challenges reside in the efficiency and range of the transfer. We highlight innovation in beamforming and UV-assisted approaches. Of particular interest for designers is the discussion of implementation and operational aspects, standards, and safety relating to regulations. A high-level catalog of potential applications maps these to adequate technological options for wireless power transfer.

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Section: Range Power and Efficiency-increasing Technologiesmentioning

confidence: 99%

Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases

Mulders¹,

Delabie²,

Lecluyse³

et al. 2022

Sensors

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show abstract

“…Based on the aforementioned discussion and [96,110,112], the mutual inductance between Tx and Rx could be written as:…”

Section: Theory Analysis Of Underwater Inductive Wireless Power Trans...mentioning

confidence: 99%

“…It acts as the seawater environment. Compared with the other research work as shown in [110] and [111]. We adapted the same 35% water salinity and 25 • C temperature.…”

Section: Experimental and Simulated Surveymentioning

confidence: 99%

“…There are two popular near‐field wireless power transfer that consist of the inductive wireless power transfer system and the capacitive wireless power transfer system. The inductive wireless power transfer system could transfer power by using magnetic fields and the capacitive wireless power transfer system is based on the electric fields and related control method [94–114]. However, considering the severe condition in the water environment and the high‐frequency electric fields, the capacitive wireless power transfer system is rarely applied in the underwater environment as shown in [111].…”

Section: Underwater Wireless Power Transfer Systemmentioning

confidence: 99%

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A review of underwater inductive wireless power transfer system

Yang

Zhang

et al. 2023

IET Power Electronics

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The IPT system has been studied for underwater applications such as autonomous underwater vehicles (AUVs) and subsea sensors. However, it rarely comparatively shows the performance of the IPT system in air, freshwater, and seawater. Based on the fore‐mentioned research background, this paper presents a survey of the properties of the IPT system in different mediums. Here, a 100 W power‐level experimental IPT prototype is built and tested. The resonant frequency is set at 300 kHz with a gap range from 10 to 190 mm. The comparison is focused on the efficiency, mutual inductance, coupling coefficient, coil resistance, and quality factor of the IPT system. The IPT system is placed in air, freshwater, and seawater with the same settings. What's more, the magnetic fields of coupling coils in air, freshwater, and seawater are presented in this paper. This paper could be acted as a reference to optimize the IPT system and facilitate future IPT research for underwater applications by analysing the performance of the IPT system in different mediums. The 3D Ansys Maxwell simulation of the IPT system is also given here to study the magnetic fields.

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“…One of the most attractive advantages of the capacitive-based WPT is the avoidance of undesired eddy currents and electromagnetic interfaces (EMI) that come with magnetic-based WPT methods [20]. In the marine environment, the hull will have more impact on the power transfer and the electromagnetic fields or the electric fields for the conductive feature of seawater which is compared with the air medium [21][22][23][24][25][26]. In Fig.…”

Section: Iintroductionmentioning

confidence: 99%

Comparison Survey of Effects of Hull on AUVs for Underwater Capacitive Wireless Power Transfer System and Underwater Inductive Wireless Power Transfer System

Yang¹,

Zhang²,

Li³

et al. 2022

IEEE Access

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Underwater wireless power transfer (UWPT) system has attracted widespread attention. It has been used for power delivery for underwater equipment in the marine environment with high safety and convenience. However, the material of metal plates and the shape which will affect the high frequency alternating electromagnetic fields and the high frequency alternating electric fields for the inductive wireless power transfer (IPT) system and the capacitive wireless power transfer (CPT) system. This paper presents the effects of the hull of the autonomous underwater vehicle (AUV) on the underwater wireless power transfer system including the underwater capacitive wireless power transfer (UCWPT) system and underwater inductive wireless power transfer (UIWPT) system. The features of underwater wireless power transfer systems have been carefully studied with simulation and experimental work. The experimental water tank has been constructed with the 35‰ salinity water. The hull of AUVs has been respectively simulated and built with rectangle metal plates and curved metal plates. The original experimental data and phenomenon have been presented in this paper. The different performance of the UCWPT system and UIWPT system is provided and discussed in this paper. The comparison work with the related paper has been analyzed. This paper could be acted as the reference for designing the underwater wireless power transfer system for AUVs.INDEX TERMS Underwater wireless power transfer (UWPT), capacitive, material, shape, autonomous underwater vehicles (AUVs)

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Experimental Evaluation of Coupling Coils for Underwater Wireless Power Transfer

Cited by 12 publications

References 8 publications

Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases

Wireless Power Transfer: Systems, Circuits, Standards, and Use Cases

A review of underwater inductive wireless power transfer system

Comparison Survey of Effects of Hull on AUVs for Underwater Capacitive Wireless Power Transfer System and Underwater Inductive Wireless Power Transfer System

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