A method to improve multi-node power transmission efficiency of inductively coupled mooring cable

Area of Science:

• Oceanography
• Electrical Engineering
• Materials Science

Background:

• Inductively coupled mooring cables are vital for ocean hydrological data collection.
• Current designs suffer low power transmission efficiency due to seawater medium losses.
• This area remains under-researched despite its importance.

Purpose of the Study:

• To analyze contactless power transmission circuits considering seawater losses.
• To develop a theoretical model for multi-node power transmission in inductively coupled mooring systems.
• To identify key parameters for improving power output and transmission efficiency.

Main Methods:

• Established a theoretical model for multi-node power transmission.
• Analyzed contactless power transmission circuits with seawater loss.
• Investigated the impact of frequency selection and magnetic core properties.
• Selected optimal schemes based on output power requirements.

Main Results:

• Demonstrated that output power and efficiency depend on frequency and magnetic core characteristics.
• Achieved an output power of 12W per node and 120W total output power.
• Reached a total transmission efficiency of 50% with an input current of 2 Arms.

Conclusions:

• Optimizing frequency and magnetic core materials significantly improves power transmission efficiency.
• The developed model provides a framework for designing efficient inductively coupled mooring systems.
• The findings pave the way for more reliable and effective oceanographic data monitoring.