Design of wireless power transfer system for autonomous underwater vehicles considering seawater eddy current loss

2021 ◽  
Author(s):  
Zhimeng Liu ◽  
Fang Li ◽  
Chengxuan Tao ◽  
Shufan Li ◽  
Lifang Wang
Keyword(s):  
Eddy Current ◽  
Autonomous Underwater Vehicles ◽  
Wireless Power Transfer ◽  
Underwater Vehicles ◽  
Eddy Current Loss ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Current Loss ◽  
Wireless Power Transfer System

scholarly journals Circuit Coupling Model Containing Equivalent Eddy Current Loss Impedance for Wireless Power Transfer in Seawater

2021 ◽  
Vol 15 ◽  
pp. 410-416
Author(s):  
Wangqiang Niu ◽  
Chen Ye ◽  
Wei Gu
Keyword(s):  
Eddy Current ◽  
Wireless Power Transfer ◽  
Coupling Model ◽  
Eddy Current Loss ◽  
Outer Diameter ◽  
Water Medium ◽  
Power Transfer ◽  
Wireless Power ◽  
Current Loss ◽  
Output Characteristics

Nowadays, as the whole world put more emphasis on ocean resource exploration, the use of automatic underwater vehicles (UAVs) comes to be increasingly frequent. Inductive wireless power transfer (IWPT), as a power transfer solution with high safety and exibility, is quite promising applied in UAV power supply. However, when applied underwater, IWPT efficiency decreases due to eddy current loss (ECL) caused by high conductivity of water medium. In order to analyze IWPT output characteristics in seawater, this paper proposes a coupling circuit model involving equivalent eddy current loss impedance (EECLI), which is derived via three- coil model. On the one hand, it is found that splitting frequency still exists in IWPT under seawater. On the other hand, EECLI is independent to coil distance, but proportional to operation frequency. The validity of the proposed model for IWPT system with coils in small size (coil outer diameter 12 cm, system resonant fre- quency 570 kHz) is verified by experiment, which means it is available for IWPT system design and analysis.

scholarly journals Eddy current loss analysis of underwater wireless power transfer systems with misalignments

AIP Advances ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 101421 ◽  
Author(s):  
Zhengchao Yan ◽  
Baowei Song ◽  
Kehan Zhang ◽  
Haibing Wen ◽  
Zhaoyong Mao ◽  
...  
Keyword(s):  
Eddy Current ◽  
Wireless Power Transfer ◽  
Eddy Current Loss ◽  
Power Transfer ◽  
Wireless Power ◽  
Current Loss ◽  
Loss Analysis

Eddy Current Loss and Detuning Effect of Seawater on Wireless Power Transfer

2020 ◽  
Vol 8 (1) ◽  
pp. 909-917 ◽  
Author(s):  
Kehan Zhang ◽  
Yunshan Ma ◽  
Zhengchao Yan ◽  
Zhengfei Di ◽  
Baowei Song ◽  
...  
Keyword(s):  
Eddy Current ◽  
Wireless Power Transfer ◽  
Eddy Current Loss ◽  
Power Transfer ◽  
Wireless Power ◽  
Current Loss

scholarly journals Research on wireless power transfer system for Torpedo autonomous underwater vehicles

2018 ◽  
Vol 10 (9) ◽  
pp. 168781401880256
Author(s):  
Baowei Song ◽  
Yushan Wang ◽  
Kehan Zhang ◽  
Zhaoyong Mao
Keyword(s):  
Autonomous Underwater Vehicle ◽  
Autonomous Underwater Vehicles ◽  
Impedance Matching ◽  
Equivalent Circuit Model ◽  
Wireless Power Transfer ◽  
Underwater Vehicle ◽  
Transfer System ◽  
Power Transfer ◽  
Wireless Power ◽  
Wireless Power Transfer System

The wireless power transfer shows great potential in the future for its safety and convenience. Autonomous underwater vehicle is one of the important tools to explore and develop oceans. In this study, we develop and analyze a wireless power transfer system based on magnetic resonance coupling to charge the autonomous underwater vehicle underwater. We have adopted a way that energy transmission underneath the vehicle and the coils in the wireless power transfer system were proposed to obtain a higher mutual inductance based on the shape of the vehicle in this study. In addition, we analyze the equivalent circuit model and propose a kind of impedance matching network to maintain system security. The coils we used in the proposed system are 20 turns and their radii are 70 mm. The system works well with 100 W output and 72% efficiency.

Sign in / Sign up

Export Citation Format

Share Document