Parameter Design of WPT Systems for Underwater Unmanned Vehicles Based on Optimal Efficiency

Zhenghao Wang; Fei Gao; Xin Liu; Xijun Yang; Hongchen Liu

doi:10.1049/icp.2025.3930

Parameter Design of WPT Systems for Underwater Unmanned Vehicles Based on Optimal Efficiency

Zhenghao Wang
, Fei Gao^*
, Xin Liu
, Xijun Yang
, Hongchen Liu

^*Corresponding author for this work

Shanghai Jiao Tong University
University of Electronic Science and Technology of China
School of Electrical Engineering and Automation, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Wireless Power Transfer (WPT) technology has gained widespread attention and application in underwater unmanned vehicles (UUVs) due to its superior convenience and environmental adaptability. Compared to WPT systems in air, the eddy current loss in seawater significantly impacts the design of resonant frequency and parameters for underwater WPT systems. However, industry standards and guidelines for resonant frequency and resonant network parameter design in underwater WPT systems remain underdeveloped. To address this issue, this paper investigates the factors influencing circuit parasitic losses and eddy current losses in underwater WPT systems and proposes a parameter design strategy to enhance system efficiency. Based on this method, a 2.2 kW experimental prototype was developed, achieving a power transmission efficiency of 86.83%. Compared to traditional designs, the proposed method improves efficiency by 2.33%, providing a valuable reference for the design of resonant frequency and resonant network parameters in underwater WPT systems.

Original language	English
Title of host publication	14th International Conference on Renewable Power Generation, RPG 2025
Publisher	Institution of Engineering and Technology
Pages	831-838
Number of pages	8
Volume	2025
Edition	38
ISBN (Electronic)	9781807050207, 9781807050344, 9781807050351, 9781807050375, 9781837242634, 9781837242900, 9781837242917, 9781837243143, 9781837243150, 9781837243167, 9781837243235, 9781837243341, 9781837243358, 9781837245277, 9781837246847, 9781837246854, 9781837247004, 9781837247011, 9781837247028, 9781837247035, 9781837247042, 9781837247059, 9781837247257, 9781837247264, 9781837247271, 9781837247295, 9781837247325, 9781837247332, 9781837249916
DOIs	https://doi.org/10.1049/icp.2025.3930
State	Published - 1 Mar 2026
Externally published	Yes
Event	14th International Conference on Renewable Power Generation, RPG 2025 - Shanghai, China Duration: 24 Oct 2025 → 26 Oct 2025

Conference

Conference	14th International Conference on Renewable Power Generation, RPG 2025
Country/Territory	China
City	Shanghai
Period	24/10/25 → 26/10/25

Keywords

Underwater wireless power transfer
eddy current loss
parameter design
resonant frequency

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10.1049/icp.2025.3930

Cite this

@inproceedings{0ee445bbf8184d4090eb137cc88bfea6,

title = "Parameter Design of WPT Systems for Underwater Unmanned Vehicles Based on Optimal Efficiency",

abstract = "Wireless Power Transfer (WPT) technology has gained widespread attention and application in underwater unmanned vehicles (UUVs) due to its superior convenience and environmental adaptability. Compared to WPT systems in air, the eddy current loss in seawater significantly impacts the design of resonant frequency and parameters for underwater WPT systems. However, industry standards and guidelines for resonant frequency and resonant network parameter design in underwater WPT systems remain underdeveloped. To address this issue, this paper investigates the factors influencing circuit parasitic losses and eddy current losses in underwater WPT systems and proposes a parameter design strategy to enhance system efficiency. Based on this method, a 2.2 kW experimental prototype was developed, achieving a power transmission efficiency of 86.83\%. Compared to traditional designs, the proposed method improves efficiency by 2.33\%, providing a valuable reference for the design of resonant frequency and resonant network parameters in underwater WPT systems.",

keywords = "Underwater wireless power transfer, eddy current loss, parameter design, resonant frequency",

author = "Zhenghao Wang and Fei Gao and Xin Liu and Xijun Yang and Hongchen Liu",

note = "Publisher Copyright: {\textcopyright} The Institution of Engineering \& Technology 2025.; 14th International Conference on Renewable Power Generation, RPG 2025 ; Conference date: 24-10-2025 Through 26-10-2025",

year = "2026",

month = mar,

day = "1",

doi = "10.1049/icp.2025.3930",

language = "英语",

volume = "2025",

pages = "831--838",

booktitle = "14th International Conference on Renewable Power Generation, RPG 2025",

publisher = "Institution of Engineering and Technology",

address = "英国",

edition = "38",

}

Wang, Z, Gao, F, Liu, X, Yang, X & Liu, H 2026, Parameter Design of WPT Systems for Underwater Unmanned Vehicles Based on Optimal Efficiency. in 14th International Conference on Renewable Power Generation, RPG 2025. 38 edn, vol. 2025, Institution of Engineering and Technology, pp. 831-838, 14th International Conference on Renewable Power Generation, RPG 2025, Shanghai, China, 24/10/25. https://doi.org/10.1049/icp.2025.3930

Parameter Design of WPT Systems for Underwater Unmanned Vehicles Based on Optimal Efficiency. / Wang, Zhenghao; Gao, Fei; Liu, Xin et al.
14th International Conference on Renewable Power Generation, RPG 2025. Vol. 2025 38. ed. Institution of Engineering and Technology, 2026. p. 831-838.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Parameter Design of WPT Systems for Underwater Unmanned Vehicles Based on Optimal Efficiency

AU - Wang, Zhenghao

AU - Gao, Fei

AU - Liu, Xin

AU - Yang, Xijun

AU - Liu, Hongchen

N1 - Publisher Copyright: © The Institution of Engineering & Technology 2025.

PY - 2026/3/1

Y1 - 2026/3/1

N2 - Wireless Power Transfer (WPT) technology has gained widespread attention and application in underwater unmanned vehicles (UUVs) due to its superior convenience and environmental adaptability. Compared to WPT systems in air, the eddy current loss in seawater significantly impacts the design of resonant frequency and parameters for underwater WPT systems. However, industry standards and guidelines for resonant frequency and resonant network parameter design in underwater WPT systems remain underdeveloped. To address this issue, this paper investigates the factors influencing circuit parasitic losses and eddy current losses in underwater WPT systems and proposes a parameter design strategy to enhance system efficiency. Based on this method, a 2.2 kW experimental prototype was developed, achieving a power transmission efficiency of 86.83%. Compared to traditional designs, the proposed method improves efficiency by 2.33%, providing a valuable reference for the design of resonant frequency and resonant network parameters in underwater WPT systems.

AB - Wireless Power Transfer (WPT) technology has gained widespread attention and application in underwater unmanned vehicles (UUVs) due to its superior convenience and environmental adaptability. Compared to WPT systems in air, the eddy current loss in seawater significantly impacts the design of resonant frequency and parameters for underwater WPT systems. However, industry standards and guidelines for resonant frequency and resonant network parameter design in underwater WPT systems remain underdeveloped. To address this issue, this paper investigates the factors influencing circuit parasitic losses and eddy current losses in underwater WPT systems and proposes a parameter design strategy to enhance system efficiency. Based on this method, a 2.2 kW experimental prototype was developed, achieving a power transmission efficiency of 86.83%. Compared to traditional designs, the proposed method improves efficiency by 2.33%, providing a valuable reference for the design of resonant frequency and resonant network parameters in underwater WPT systems.

KW - Underwater wireless power transfer

KW - eddy current loss

KW - parameter design

KW - resonant frequency

UR - https://www.scopus.com/pages/publications/105039228734

U2 - 10.1049/icp.2025.3930

DO - 10.1049/icp.2025.3930

M3 - 会议稿件

AN - SCOPUS:105039228734

VL - 2025

SP - 831

EP - 838

BT - 14th International Conference on Renewable Power Generation, RPG 2025

PB - Institution of Engineering and Technology

T2 - 14th International Conference on Renewable Power Generation, RPG 2025

Y2 - 24 October 2025 through 26 October 2025

ER -

Parameter Design of WPT Systems for Underwater Unmanned Vehicles Based on Optimal Efficiency

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