High-Power-Density Wireless Power Transfer System for Autonomous Underwater Vehicle Based on a Variable Ring-Shaped Magnetic Coupler

Zhang, Ben; Chen, Jinmao; Wang, Xudong; Xu, Wanli; Lu, Changbo; Lu, Yong

doi:10.1109/tte.2023.3304060

Cited by 8 publications

(1 citation statement)

References 28 publications

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“…Inductive wireless power transfer is based on the wireless transfer of power between two coupled coils using a time-varying magnetic field [94]. Depending on the coupling coefficient k between the coils, the system can be loosely or tightly coupled [52].…”

Section: Inductive Wireless Power Transfermentioning

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: Inductive Wireless Power Transfermentioning

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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A novel arc‐shaped magnetic coupler with dual‐channel receiver for rotational misalignment tolerance in AUV underwater wireless power transfer systems

Tang,

Shen,

Xie

et al. 2024

Circuit Theory & Apps

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Traditional wet plug charging for autonomous underwater vehicles (AUVs) limits its application. Inductive power transfer (IPT) is an effective solution to this problem. This paper proposes an arc‐shaped magnetic coupler incorporated with solenoid coils to achieve a stable and efficient output against rotational misalignment for charging AUV. The novel magnetic coupler consists of two solenoid coils and an arc‐shaped coil with a reverse winding, guaranteeing a relatively constant total mutual inductance and decoupling from each other. This magnetic coupler has the characteristics of a compact structure, an ultra‐wide coupling range, and a relatively stable equivalent mutual inductance. The experimental IPT prototype can deliver 1.29 kW with a dc–dc efficiency of 93% under the fully aligned case and 1.2 kW with a dc–dc efficiency of 91% under the misaligned case.

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A Three‐Phase Omnidirectional Wireless Charger Based on Segmented Arc‐Shaped Coupler With High Anti‐Rotation Offset Feature for AUVs

Yu,

Liu,

Wang

et al. 2024

Circuit Theory & Apps

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When the autonomous underwater vehicle (AUV) is charged by wireless charging technology (WCT), the coupler will be misalignment due to the impact of marine environment factors, which can lead to the weak stability of the system output. Besides, the electromagnetic field generated by the coaxial coil is concentrated in the center of the AUV hull, and the strong electromagnetic field may interfere with the normal operation of the power electronic equipment inside the AUVs. To address the above problems, this paper proposes a novel coupler with high anti‐offset and suppression of the central magnetic field of the AUVs. The coupler is composed of a three‐phase segmented arc‐shaped transmitter coils and a cylindrical receiver coil. The coupler can implement the suppression of the AUV central magnetic field and the promotion of anti‐rotation offset feature under the omnidirectional uniform magnetic field control method. To better adapt the proposed coupler and meet the battery charging requirements, a three‐phase wireless charging topology with a relay is designed, which can acquire the smooth transition between the two charging modes without constructing the wireless communication between two sides and detecting the state of charge (SOC). Finally, to verify the feasibility of the proposed scheme, a 1‐kW AUV wireless charging prototype is built. The experimental results indicate that the maximum output power fluctuation rate of the system is 1.1% in the case of the full‐angle rotation offset.

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High-Power-Density Wireless Power Transfer System for Autonomous Underwater Vehicle Based on a Variable Ring-Shaped Magnetic Coupler

Cited by 8 publications

References 28 publications

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

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

A novel arc‐shaped magnetic coupler with dual‐channel receiver for rotational misalignment tolerance in AUV underwater wireless power transfer systems

A Three‐Phase Omnidirectional Wireless Charger Based on Segmented Arc‐Shaped Coupler With High Anti‐Rotation Offset Feature for AUVs

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