A Contactless Power Transmission System for Underwater Vehicles


For efficiently charging secondary batteries of underwater vehicles used in ocean engineering, the contactless power transmission (CLPT) system is selected as an energy transferring interface for in-situ recharging. Based on the principle of electromagnetic induction, the detached structure of a transformer for underwater applying is designed. Taking the high pressure and salt water into account, the pressure effect on the gapped transformer is discussed. The transmission properties in seawater were investigated through several experiments. Experimental results show that the CLPT system is capable in ocean engineering with the appropriate designed system and the optimized gapped transformer, and transferred electric power can be delivered efficiently through large gap length in loosely coupled transformers.

  • Abstract
  • Introduction
  • Mechanism of CLPT Systems
  • High Pressure Effect
  • System Design
  • Experimental Results
  • Conclusions
  • Ancknoledgements
  • Nomenclature
  • References

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