Evaluation of Transmission Efficiency of Bent Spiral Coil in Undersea Wireless Power Transfer

We are studying the undersea wireless power transfer to probes. One of problems is that transmission efficiency decreases due misalignment receiving coil caused by tidal currents. By bending spiral used as coil, magnetic fluxes, which does not interlink transmitting and can link coils magnetically. The increase interlinked fluxes suppresses decrease in case misalignment. using a bent compared with flat lateral angular finite element simulation software, Femtet. results show quantitative misalignment, relatively stable high achieved when coil. In conditions, best obtained 5-degree bend angle