Development of a Fit-to-Surface and Lightweight Magnetic Coupler for Autonomous Underwater Vehicle Wireless Charging Systems

Cai, Chunwei; Wu, Shuai; Zhang, Zhipeng; Jiang, Longyun; Yang, Shıyan

doi:10.1109/tpel.2021.3064411

Cited by 64 publications

(19 citation statements)

References 26 publications

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“…[13], and open-type magnetic coupler transmitting arc-receiving I shaped in ref. [8] for anti-misalignment performance comparison with the proposed magnetic coupler. In order to ensure the fairness of the comparison, the following prerequisites are required for the comparison: (1) The AUV is uniformly set to have a diameter of 300 mm and a shell thickness of 5 mm; (2) The coupling coefficient of the above-mentioned magnetic coupler in the aligned state is basically consistent with the cited papers; (3) Considering the size difference of the receiver of the magnetic coupler, only the performance changes when the receiver is rotational relative to the centre of the AUV are compared.…”

Section: Comparison Of Magnetic Couplermentioning

confidence: 99%

“…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%

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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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Section: Comparison Of Magnetic Couplermentioning

confidence: 99%

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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show abstract

“…Compared with wired charging technology, it has the advantages of safety, concealment, and strong environmental adaptability [2,3]. It has been widely used in electronic devices [4], electric vehicles [5], and autonomous underwater vehicles (AUVs) [6][7][8][9]. The energy supply problem of AUVs greatly restricts the endurance and working range of AUV.…”

Section: Introductionmentioning

confidence: 99%

“…The space inside the AUV is very limited, which puts forward high requirements on the weight and volume of the receiver of the system, that is, the receiver should be as compact as possible, including the optimization of the magnetic coupler [7][8][9], compensation topology select [10][11][12][13][14][15][16], etc. The magnetic coupler selects the arc shaped transmitter and the Hshaped structure receiver proposed by [17], which not only occupies a small volume but also has the characteristics of light weight.…”

Section: Introductionmentioning

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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“…As an emerging technology that can realize power transmission without the need for physical contact, wireless power transfer (WPT) is safe and convenient. Therefore, it has been used in various situations, such as wireless charging of electric vehicles [4,5], underwater vehicles [6,7], and automated guided vehicles [8]. With such attractive features, WPT technology becomes a promising candidate to help UAV break through the development dilemma.…”

Section: Introductionmentioning

confidence: 99%

Light-weight Unmanned Aerial Vehicle Wireless Power Transfer System Based on Hollow Copper Coated Aluminum Tubes

Cao¹,

Lu²,

Lü³

et al. 2022

PIER Letters

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Limited endurance has become a bottleneck restricting the wide application of unmanned aerial vehicles (UAVs), and wireless power transfer (WPT) technology is expected to become an effective means to help UAVs break this bottleneck. UAV has strict restrictions on the weight of onboard system, so the lightweight design of the receiving side has become the core goal of UAV WPT systems design. In order to achieve this goal, this paper first proposes a novel magnetic coupler based on hollow coppercoated aluminum tubes, in which the receivers act as both landing gears and energy pick-up. The coupling mechanism of the magnetic coupler is analyzed. Secondly, based on the LCC-S resonant compensation network with a simple structure on the receiving-side, the system circuit is designed, and the system transmission model is established. Finally, a UAV WPT prototype is built and tested. The experimental results show that the transmission power of the designed system can reach 157 W, the overall efficiency 80%, and each receiver (also acting as landing gear) weight only 22 g. The weight power density ratio is 3.568 W/g.

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Development of a Fit-to-Surface and Lightweight Magnetic Coupler for Autonomous Underwater Vehicle Wireless Charging Systems

Cited by 64 publications

References 26 publications

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

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

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

Light-weight Unmanned Aerial Vehicle Wireless Power Transfer System Based on Hollow Copper Coated Aluminum Tubes

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