Dual Resonant Frequency Inductive Power Transfer in an Underwater Tight Coupling System

Energies

Rui He¹  Pengzhi Yao¹  Jing Zhou¹  Hao Ma¹  Kan Guo¹  Yao Zhang² 

[1] College of Electrical Engineering, University of Zhejiang, Hangzhou 310027, China;School of Automation, University of Hangzhou Dianzi, Hangzhou 310000, China;

关键词: inductive power transfer;    resonant;    harmonic;    tight coupling;   

DOI  :  10.3390/en14010242

来源: DOAJ

【 摘 要 】

The application of wireless power transfer technology in the underwater environment proposes both opportunities and challenges to undersea power feeding. Due to the attenuation of electromagnetic waves in seawater, the distance between transmitter and receiver is always maintained at a minimum value, which results in tight coupling between the transmitter and receiver. The tight coupling condition provides a low impedance loop for high-order harmonic, so the component of the harmonic wave is thus significantly increased and cannot be ignored in the power transmission system. In order to fully utilize the harmonic energy, a fundamental-harmonic dual-channel system was proposed and studied in this paper. Compared with single-channel systems transmitting fundamental wave only, the dual-channel system has higher power transmission capability, while the loss in dual channel system can be less than that of a single-channel system after proper optimization. A 3 kW experiment platform is established to verify the effectiveness of theoretical analysis.

【 授权许可】

Unknown