Hull-Compatible Underwater IPT System with Enhanced Electromagnetic–Thermal Performance for USVs

With the growing use of unmanned surface vehicles (USVs) for underwater exploration, efficient wireless charging solutions like inductive power transfer (IPT) are crucial for addressing power limitations. This paper presents a novel IPT system for USVs and introduces a systematic design approach for...

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Main Authors: Qingyu Zhao, Songyan Niu, Ziyun Shao, Linni Jian
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/18/2/237
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author Qingyu Zhao
Songyan Niu
Ziyun Shao
Linni Jian
author_facet Qingyu Zhao
Songyan Niu
Ziyun Shao
Linni Jian
author_sort Qingyu Zhao
collection DOAJ
description With the growing use of unmanned surface vehicles (USVs) for underwater exploration, efficient wireless charging solutions like inductive power transfer (IPT) are crucial for addressing power limitations. This paper presents a novel IPT system for USVs and introduces a systematic design approach for optimizing magnetic couplers. The proposed design addresses three critical challenges: misalignment tolerance, lightweight construction, and thermal safety, which are intricately linked through a magnetic field. In terms of misalignment, this paper demonstrates that the coil length is a key factor in determining misalignment tolerance. For a lightweight design, replacing the ferrite plate with ferrite bars can significantly reduce the weight of the coupler without causing core saturation. The design is further validated through a two-way coupled electromagnetic–thermal simulation. The results reveal that, with proper thermal management, the system avoids thermal risks in underwater environments compared to air. Finally, a 3 kW prototype is constructed and tested in fresh water, achieving 55 V and 50 A wireless charging at an 85.7% full-load dc-to-dc efficiency, thus confirming the practicality and performance of the design.
format Article
id doaj-art-510f146143874d8f85e26ee3585e1a8d
institution Kabale University
issn 1996-1073
language English
publishDate 2025-01-01
publisher MDPI AG
record_format Article
series Energies
spelling doaj-art-510f146143874d8f85e26ee3585e1a8d2025-01-24T13:30:45ZengMDPI AGEnergies1996-10732025-01-0118223710.3390/en18020237Hull-Compatible Underwater IPT System with Enhanced Electromagnetic–Thermal Performance for USVsQingyu Zhao0Songyan Niu1Ziyun Shao2Linni Jian3Department of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaDepartment of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaSchool of Electronics and Communication Engineering, Guangzhou University, Guangzhou 510006, ChinaDepartment of Electronic and Electrical Engineering, Southern University of Science and Technology, Shenzhen 518055, ChinaWith the growing use of unmanned surface vehicles (USVs) for underwater exploration, efficient wireless charging solutions like inductive power transfer (IPT) are crucial for addressing power limitations. This paper presents a novel IPT system for USVs and introduces a systematic design approach for optimizing magnetic couplers. The proposed design addresses three critical challenges: misalignment tolerance, lightweight construction, and thermal safety, which are intricately linked through a magnetic field. In terms of misalignment, this paper demonstrates that the coil length is a key factor in determining misalignment tolerance. For a lightweight design, replacing the ferrite plate with ferrite bars can significantly reduce the weight of the coupler without causing core saturation. The design is further validated through a two-way coupled electromagnetic–thermal simulation. The results reveal that, with proper thermal management, the system avoids thermal risks in underwater environments compared to air. Finally, a 3 kW prototype is constructed and tested in fresh water, achieving 55 V and 50 A wireless charging at an 85.7% full-load dc-to-dc efficiency, thus confirming the practicality and performance of the design.https://www.mdpi.com/1996-1073/18/2/237inductive power transfermagnetic couplerlightweight designmisalignment tolerancethermal safetyunderwater surface vehicles
spellingShingle Qingyu Zhao
Songyan Niu
Ziyun Shao
Linni Jian
Hull-Compatible Underwater IPT System with Enhanced Electromagnetic–Thermal Performance for USVs
Energies
inductive power transfer
magnetic coupler
lightweight design
misalignment tolerance
thermal safety
underwater surface vehicles
title Hull-Compatible Underwater IPT System with Enhanced Electromagnetic–Thermal Performance for USVs
title_full Hull-Compatible Underwater IPT System with Enhanced Electromagnetic–Thermal Performance for USVs
title_fullStr Hull-Compatible Underwater IPT System with Enhanced Electromagnetic–Thermal Performance for USVs
title_full_unstemmed Hull-Compatible Underwater IPT System with Enhanced Electromagnetic–Thermal Performance for USVs
title_short Hull-Compatible Underwater IPT System with Enhanced Electromagnetic–Thermal Performance for USVs
title_sort hull compatible underwater ipt system with enhanced electromagnetic thermal performance for usvs
topic inductive power transfer
magnetic coupler
lightweight design
misalignment tolerance
thermal safety
underwater surface vehicles
url https://www.mdpi.com/1996-1073/18/2/237
work_keys_str_mv AT qingyuzhao hullcompatibleunderwateriptsystemwithenhancedelectromagneticthermalperformanceforusvs
AT songyanniu hullcompatibleunderwateriptsystemwithenhancedelectromagneticthermalperformanceforusvs
AT ziyunshao hullcompatibleunderwateriptsystemwithenhancedelectromagneticthermalperformanceforusvs
AT linnijian hullcompatibleunderwateriptsystemwithenhancedelectromagneticthermalperformanceforusvs