Power Transmitter Design for Underwater WPT

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

doi:10.1109/oceanse.2019.8867459

Cited by 3 publications

(2 citation statements)

References 7 publications

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“…Here, a solenoid transmitter was tested with a dual planar receiver, achieving an efficiency of 85% for a 401 W power transfer without misalignment. Furthermore, many other planar and coaxial systems that achieved power transfer values below 100 W or did not provide enough information to analyze their parameters can also be found in the literature [159,[200][201][202][203][204][205][206]. Additionally, some other works present comparisons between planar topologies [207] and planar and coaxial topologies [208].…”

Section: Laboratory Prototypes With Coaxial and Planar Coilsmentioning

confidence: 99%

Wireless Power Transfer for Unmanned Underwater Vehicles: Technologies, Challenges and Applications

Martínez de Alegría,

Rozas Holgado,

Ibarra

et al. 2024

Energies

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Unmanned underwater vehicles (UUVs) are key technologies to conduct preventive inspection and maintenance tasks in offshore renewable energy plants. Making such vehicles autonomous would lead to benefits such as improved availability, cost reduction and carbon emission minimization. However, some technological aspects, including the powering of these devices, remain with a long way to go. In this context, underwater wireless power transfer (UWPT) solutions have potential to overcome UUV powering drawbacks. Considering the relevance of this topic for offshore renewable plants, this work aims to provide a comprehensive summary of the state of the art regarding UPWT technologies. A technology intelligence study is conducted by means of a bibliographical survey. Regarding underwater wireless power transfer, the main methods are reviewed, and it is concluded that inductive wireless power transfer (IWPT) technologies have the most potential. These inductive systems are described, and their challenges in underwater environments are presented. A review of the underwater IWPT experiments and applications is conducted, and innovative solutions are listed. Achieving efficient and reliable UWPT technologies is not trivial, but significant progress is identified. Generally, the latest solutions exhibit efficiencies between 88% and 93% in laboratory settings, with power ratings reaching up to 1–3 kW. Based on the assessment, a power transfer within the range of 1 kW appears to be feasible and may be sufficient to operate small UUVs. However, work-class UUVs require at least a tenfold power increase. Thus, although UPWT has advanced significantly, further research is required to industrially establish these technologies.

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Section: Laboratory Prototypes With Coaxial and Planar Coilsmentioning

confidence: 99%

Wireless Power Transfer for Unmanned Underwater Vehicles: Technologies, Challenges and Applications

Martínez de Alegría,

Rozas Holgado,

Ibarra

et al. 2024

Energies

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“…An efficient model is proposed in [43] by considering Z-parameters for UWPT. Insightful discussion is provided in [44] to design a UWPT system. In [45], the authors have comprehensively reviewed AUV-based WPT systems and docking techniques.…”

Section: Related Workmentioning

confidence: 99%

Enabling Underwater Wireless Power Transfer towards Sixth Generation (6G) Wireless Networks: Opportunities, Recent Advances, and Technical Challenges

Mohsan

Khan

Mazinani

et al. 2022

JMSE

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In recent decades, wireless power transfer (WPT) has gained significant interest from both academic and industrial experts. It possesses natural electrical isolation between transmitter and receiver components, ensuring a secure charging mechanism in an underwater scenario. This ground-breaking technology has also enabled power transmission in the deep-sea environment. However, the stochastic nature of the ocean highly influences underwater wireless power transmission and transfer efficiency is not up to that of terrestrial WPT systems. Recently, the research fraternity has focused on WPT in the air medium, while underwater wireless power transfer (UWPT) is challenging and yet to be explored. The major concerns are ocean current disturbance, bio-fouling, extreme pressure and temperature, seawater conductivity and attenuation. Thus, it is essential to address these challenges, which cause a substantial energy loss in UWPT. This study presents a comparison between various WPT techniques and highlights the research contributions in UWPT in recent years. Research and engineering challenges, practical considerations, and applications are analyzed in this review. We have also addressed influencing factors such as coil orientation, coil misalignment and seawater effects in order to realize an efficient and flexible UWPT system. In addition, this study proposes multiple-input and multiple-output (MIMO) wireless power transmission, which can significantly improve the endurance of autonomous underwater vehicles (AUVS). This idea can be applied to the design of an underwater wireless power station for self-charging of AUVs.

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Electromagnetic Field and Energy Flux in Wireless Power Transfer System

Masuda

Ishitobi

2022

2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)

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Power Transmitter Design for Underwater WPT

Cited by 3 publications

References 7 publications

Wireless Power Transfer for Unmanned Underwater Vehicles: Technologies, Challenges and Applications

Wireless Power Transfer for Unmanned Underwater Vehicles: Technologies, Challenges and Applications

Enabling Underwater Wireless Power Transfer towards Sixth Generation (6G) Wireless Networks: Opportunities, Recent Advances, and Technical Challenges

Electromagnetic Field and Energy Flux in Wireless Power Transfer System

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