Fundamental Study of Underwater Multi-Stage Contactless Power Transmission by Applying Periodic Structure Theory

Autor: Junya Ishiwaya, Ikuo Awai, Tomoya Inoue
Rok vydání: 2018
Předmět:
Zdroj: 2018 OCEANS - MTS/IEEE Kobe Techno-Oceans (OTO).
DOI: 10.1109/oceanskobe.2018.8559204
Popis: Underwater contactless power supply technology has important applications in underwater vehicles, sensors, offshore drilling operations, and scientific drilling. However, some obvious crucial problems confront multi-stage contactless power transfer, in particular exponential power transfer decay and the influence of surrounding seawater or a low-electrical-conductivity metal such as steel and stainless steel. This study fundamentally investigates multi-stage contactless power transfer in seawater and steel surrounding environments. It first examines single contactless power transfers consisting of typical coil resonators. However, coil resonator technology for multi-stage contactless power transfer poses an additional crucial problem: coil resonators are extremely sensitive to the accuracy of impedance at a power supply surface. This study therefore proposes a multistage contactless power transfer applying periodic structure theory, and presents the results of simulations and simple experiments as validation of the proposed approach.
Databáze: OpenAIRE