Design and Optimization of an Inductively Coupled Power Transfer System for the Underwater Sensors of Ocean Buoys

Cheng Fang, Xingfei Li, Ziming Xie, Jiayi Xu and Linling Xiao
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Cheng Fang: State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
Xingfei Li: State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
Ziming Xie: State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
Jiayi Xu: State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China
Linling Xiao: State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China

Energies, 2017, vol. 10, issue 1, 1-18

Abstract: Batteries are commonly used as the power source of present underwater sensors of ocean buoys. However, batteries need to be frequently replaced, which is costly. To implement the real-time power supply for a buoy’s underwater sensor, a new inductively coupled power transfer (ICPT) system that consists of two couplers and a closed cable is proposed in this paper. The special closed cable, which is the both mooring cable and transmission media, is designed to diminish the influence of changes on impedance. A model of the particular ICPT system is established. Optimization of system parameters are carried out based on the model and verified by means of the simulations. Resonant compensation is used to improve the power transfer performance. Finally, many experiments are implemented to compare with the original prototype. It is confirmed that this system can help solve the difficulty of the energy limit to a buoy’s underwater sensor.

Keywords: buoy; inductively coupled power transfer system; mutual inductance; optimal parameters (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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