A Novel Arc-Shaped Lightweight Magnetic Coupler for AUV Wireless Power Transfer

Wang, De’an; Cui, Shumei; Zhang, Jiantao; Bie, Zhi; Song, Kai; Zhu, Chunbo

doi:10.1109/tia.2021.3109839

Cited by 49 publications

(18 citation statements)

References 38 publications

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“…Through the above analysis, when the system parameters of the LCC-P topology satisfy (1) and ( 2), the CC output can be realized at the frequency ω CC . Due to the water flow and low positioning accuracy of the underwater WPT system, the transmitter and the receiver of the magnetic coupler are vulnerable to misalignment, resulting in large fluctuations in mutual inductance [19]. It can be found from (1) and (2) that the CC output characteristics of the system are decoupled with the mutual inductance, i.e., the CC output characteristics are not affected by the misalignment of the AUV in the seawater condition, which is conducive to the stable power supply of the AUV wireless charging system.…”

Section: Vinmentioning

confidence: 99%

Design of LCC-P Constant Current Topology Parameters for AUV Wireless Power Transfer

et al. 2022

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The wireless power transmission (WPT) of an autonomous underwater vehicle (AUV) tends to have non-negligible eddy current loss with increasing frequency or coil current due to the conductivity of seawater. In this paper, the inductor-capacitor-capacitor and parallel (LCC-P) topology and the magnetic coupler with an H-shaped receiver structure are chosen to achieve a compact system on the receiving side. The conditions for constant current output of the LCC-P topology are analyzed based on the cascaded circuit analysis method. The traditional parameter design method does not consider the influence of eddy current loss on the system circuit model, by introducing the equivalent eddy current loss resistance at both the transmitting side and receiving side, a modified circuit model of the WPT system in the seawater condition was obtained. Afterward, a nonlinear programming model with the optimal efficiency of the constant current mode as the objective function is established, and the genetic algorithm is used to obtain the optimal system parameters. An underwater AUV-WPT prototype was built and the finite element simulation and experimental results verified the theoretical analysis.

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Section: Vinmentioning

confidence: 99%

Design of LCC-P Constant Current Topology Parameters for AUV Wireless Power Transfer

et al. 2022

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“…The prototype uses nanocrystalline ribbons as magnetic cores and is attached to the kickstand, achieving a conformal design and good transmission efficiency. Wang [ 194 , 195 ] and Cai [ 196 ] from HIT proposed the application of Fe-based nanocrystalline ribbons to the UUV WPT system, optimizing the size and weight of the magnetic coupler by about 40% compared to the prototype with ferrite cores. In addition, the system has been designed to be lightweight and conformal.…”

Section: Magnetic Materials and Their Applications In Wptmentioning

confidence: 99%

“…In addition, the system has been designed to be lightweight and conformal. The UUV WPT magnetic coupler and its Fe-based nanocrystalline cores presented in [ 194 ] is shown in Figure 9 . It is believed that in the early future, nanocrystalline magnetic cores will be increasingly used in aerospace, underwater, and other wireless charging devices with particular fields.…”

Section: Magnetic Materials and Their Applications In Wptmentioning

confidence: 99%

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

et al. 2022

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The magnetic coupling resonant wireless power transfer (MCR-WPT) system is considered to be the most promising wireless power transfer (WPT) method because of its considerable transmission power, high transmission efficiency, and acceptable transmission distance. For achieving magnetic concentration, magnetic cores made of magnetic materials are usually added to MCR-WPT systems to enhance the coupling performance. However, with the rapid progress of WPT technology, the traditional magnetic materials gradually become the bottleneck that restricts the system power density enhancement. In order to meet the electromagnetic characteristics requirements of WPT systems, high-performance Mn-Zn and Ni-Zn ferrites, amorphous, nanocrystalline, and metamaterials have been developed rapidly in recent years. This paper introduces an extensive review of the magnetic materials of WPT systems, concluding with the state-of-the-art WPT technology and the development and application of high-performance magnetic materials. In addition, this study offers an exclusive reference to researchers and engineers who are interested in learning about the technology and highlights critical issues to be addressed. Finally, the potential challenges and opportunities of WPT magnetic materials are presented, and the future development directions of the technology are foreseen and discussed.

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“…Applying this technology to the underwater charging of AUV can greatly improve the safety, mobility and concealment of AUV charging [4]. Given the complexity of the underwater environment and the particularity of the AUV structure, some new requirements have been put forward corresponding to the wireless charging device for AUV, the main requirements are as follows [5–8]. Arc‐shaped shell of AUV makes the air gap between the transmitter and the receiver of the flat coil larger, and the coupling ability is not strong.…”

Section: Introductionmentioning

confidence: 99%

Anti‐misalignment and lightweight magnetic coupler with H‐shaped receiver structure for AUV wireless power transfer

Qiao

Sun

Rong

et al. 2022

IET Power Electronics

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Inductive power transmission technology provides a new way to solve the energy problem of autonomous underwater vehicles (AUVs). The performance of the magnetic coupler determines the system transfer capacity. A novel open-type magnetic coupler with a simple structure, lightweight, strong anti-misalignment performance and high self-inductance stability is proposed for the arc-shaped shell of AUV. The proposed magnetic coupler employs an arc-shaped transmitter and the receiver uses an H-shaped ferrite core to realize the close coupling of magnetic flux in the vertical direction. The parameters of the magnetic coupler are optimized based on ANSYS Maxwell simulation, which ensures its coupling performance and anti-misalignment performance while minimizing the volume and weight of the receiver. To verify the proposal, a wireless charging system with a 183.9 g receiver is built. The maximum self-inductance change rate of the coil and maximum coupling coefficient change rate under the conditions of axial misalignment from −25 mm to 25 mm and rotational misalignment from −10 • to 10 • are 2.9% and 14.3%, respectively. In the case of full alignment, it can deliver 735.6 W at a DC-DC efficiency of 90.87%.

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A Novel Arc-Shaped Lightweight Magnetic Coupler for AUV Wireless Power Transfer

Cited by 49 publications

References 38 publications

Design of LCC-P Constant Current Topology Parameters for AUV Wireless Power Transfer

Design of LCC-P Constant Current Topology Parameters for AUV Wireless Power Transfer

Modern Advances in Magnetic Materials of Wireless Power Transfer Systems: A Review and New Perspectives

Anti‐misalignment and lightweight magnetic coupler with H‐shaped receiver structure for AUV wireless power transfer

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