Improving Steady and Starting Characteristics of Wireless Charging for an AUV Docking System

Yang, Canjun; Lin, Mingwei; Li, Dejun

doi:10.1109/joe.2018.2872449

Cited by 32 publications

(13 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The commonly used docking methods for AUV wireless charging systems include inclusive docking and capture docking. These two methods make the distance between the transmitter and the receiver not change during charging, and when AUV enters the underwater charging dock for charging, small axial misalignment, as well as rotational misalignment is always inevitable due to the complex underwater environment and the influence of the elastic gripping device during docking [21], therefore, this paper only considers the effect of the occurrence of axial and rotational misalignment on the system and no longer considers the variation of the transmission distance, the AUV's shell parameters and the misalignment range that may occur during charging are summarized in Table 3.…”

Section: Design Of Magnetic Coupler For Auvmentioning

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

View full text Add to dashboard Cite

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%.

show abstract

Section: Design Of Magnetic Coupler For Auvmentioning

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

View full text Add to dashboard Cite

show abstract

“…Researchers have also worked on maximum efficiency point tracking with changes in frequency to address the variations in mutual coupling resulting from movement between a dock and an electric vehicle [42]. Figure 1.7a shows an image from the deployment of a joint prototype project by Dalhousie University and International Submarine Engineering Ltd (ISE) to demonstrate autonomous docking [38].The dock provides latching and unlatching capability for AUV while remaining subsea.…”

Section: Kim Et Al Have Carried Out An Analysis On Modeling Eddy Curr...mentioning

confidence: 99%

“…Various docking techniques have been explored in the literature [42,43,44,45,46,47] and deployed by different projects [38,39]. Their test results show that the in-rush current during start-up is the main reason for the power system failure.…”

Section: Kim Et Al Have Carried Out An Analysis On Modeling Eddy Curr...mentioning

confidence: 99%

System for Wireless Charging of Battery-Powered Underwater Sensor Networks

Ahluwalia

Chenevert

Pratik

et al. 2022

OCEANS 2022, Hampton Roads

View full text Add to dashboard Cite

AHLUWALIA, URVI. System for Wireless Charging of Battery-Powered Underwater Sensor Networks. (Under the direction of Dr. Zeljko Pantic).Wireless Power Transfer (WPT) systems have recently gained popularity in delivering energy underwater. Existing solutions that employ conductive charging by wet-mate connectors are costly, with complicated mating and maintenance requirements. WPT systems overcome these challenges by avoiding expensive material and complex mating mechanisms, thus making them viable alternatives.This thesis proposes an energy delivery system for wireless charging of battery-powered underwater sensor networks. Using ROVs and AUVs for periodic wireless recharging of deployed batteries, this system can increase the lifetime of such a sensor network. This thesis provides a background establishing the importance of recharging underwater sensor networks and the various challenges associated with this task. FEM-based procedures are used to design and optimize a wireless charging system and magnetic coupler, and system losses are calculated using an analytical model. The proposed system was evaluated using a prototype and provided experimental results for coils submerged in water at salinity levels similar to fresh and sea waters. These results were also compared with coils in air.The developed prototype, when operated at 50 W, worked at a maximum efficiency of 90% with coils submerged in seawater medium, with minimum possible gap, and an output voltage of 15.6 V. The experiments also show that the prototype can nominally deliver 50 W of power at 85% efficiency for a coil gap of 4 mm, 12.9 V output voltage in seawater salinity.Under similar conditions, the system has the worst-case efficiency of 77% when the coils are 12 mm apart.

show abstract

“…In addition to returning data via satellite, the data can be returned by guiding the AUV to a docking station fixed on a mooring system [133] or connecting to a cabled seafloor observing network [134] (Figure 8). When docked, the AUV returns data, downloads a new mission plan and recharges battery for extended working periods in a wired (via a physically connected connector) or wireless (inductive) way [135][136][137]. The mooring-based docking station requires the surface buoy to transmit the returned data from the AUV via Iridium satellite, and the CSO-based docking station returns data directly via seafloor cables connecting to the shore station in real time, bridging the static and dynamic observations in a more effective way.…”

Section: Current Status Of Auv Docking Technologiesmentioning

confidence: 99%

Ocean Observation Technologies: A Review

Lin

Yang

2020

Chin. J. Mech. Eng.

Self Cite

View full text Add to dashboard Cite

Covering about three quarters of the surface area of the earth, the ocean is a critical source of sustenance, medicine, and commerce. However, such vast expanse in both surface area and depth, presents myriad observing challenges for researchers, such as corrosion, attenuation of electromagnetic waves, and high pressure. Ocean observation technologies are progressing from the conventional single node, static and short-term modalities to multiple nodes, dynamic and long-term modalities, to increase the density of both temporal and spatial samplings. Although people's knowledge of the oceans has been still quite limited, the contributions of many nations cooperating to develop the Global Ocean Observing System (GOOS) have remarkably promoted the development of ocean observing technologies. This paper reviews the typical observing technologies deployed from the sea surface to the seafloor, and discusses the future trend of the ocean observation systems with the docking technology and sustained ocean energy.

show abstract

Improving Steady and Starting Characteristics of Wireless Charging for an AUV Docking System

Cited by 32 publications

References 16 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

System for Wireless Charging of Battery-Powered Underwater Sensor Networks

Ocean Observation Technologies: A Review

Contact Info

Product

Resources

About