Analysis of Power Transfer Characteristics of IPT System With Near Field Magnetic Coupling

Zhang, Kehan; Dai, Fan; Li, Xinyang; Zhang, Yan; Zhang, Fubin; Mao, Zhaoyong; Hu, Aiguo Patrick

doi:10.1109/temc.2023.3248043

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…Another coaxially aligned device with a power transfer of 3 kW was presented in [190], which was composed of three Tx devices, as seen in Figure 7d. In the case of the study by Zhang et al [198], they designed a variable ring-shaped magnetic coupler that improved the transfer efficiency of their coaxial device from 77% to 86.4% for a 800 W power transfer.…”

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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“…The underwater wireless power transfer (UWPT) technology has been proposed for charging small, submerged devices, such as AUVs [7,8]. The inductive wireless power transfer (IPT) system's operation is examined in [9] from the standpoint of the distribution of electromagnetic fields. The IPT system's mutual inductance model is simplified and approximated with the electromagnetic field model.…”

Section: Introductionmentioning

confidence: 99%

Underwater Power Conversion and Junction Technology for Underwater Wireless Power Transfer Stations

Yang,

Chen,

Zhang

et al. 2024

JMSE

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Underwater wireless power transfer (UWPT) systems are appropriate for battery charging of compact, submerged devices without a complicated and expensive sealing structure or human contact because the power source and load are not physically connected. For the shore-based power supply situation, the underwater power conversion and junction technology should be required to drop down shore-based voltage to the target voltage for the underwater energy supply of the UWPT system. This paper proposes a lightweight, high efficiency and power density underwater power conversion connector system for the UWPT system, in which the LLC resonant converter is constructed with SiC transistors. The full load range zero-voltage switching (ZVS) and load adaptive characteristics have been achieved. The optimized RC level shift driver is adopted to highly reduce the switching loss of SiC transistors. Shore-based voltage of 1000 V was converted to the target voltage of 375 V for the UWPT system. The highest measured efficiency is over 98% at a load power level of 1500 W underwater conditions.

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A Multi-Phase Capacitive Coupling Structure Based Capacitive Wireless Power Transfer System

Yang,

Tian,

Chen

et al. 2024

2024 IEEE 7th International Electrical and Energy Conference (CIEEC)

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Analysis of Power Transfer Characteristics of IPT System With Near Field Magnetic Coupling

Cited by 4 publications

References 13 publications

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

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

Underwater Power Conversion and Junction Technology for Underwater Wireless Power Transfer Stations

A Multi-Phase Capacitive Coupling Structure Based Capacitive Wireless Power Transfer System

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