Abstract
We propose Contactless Power Station (CLPS) with spiral-type coils or cam-type coils as one of the CLPS in the sea We confirmed that the power transmission characteristics in the sea agreed well with that in the air. We calculated the mutual inductance and the self-inductance by using the Neumann's formula, which is applied by the diameters of the coils, the number of turn and the coil gap. We confirmed that the calculated values agreed well with the experimental values. Then we designed the optimum coils for the power transmission by using the calculated mutual inductance and self-inductance. We examined the coil design on the power supply of the 200[W] level to a robot in the sea by way of example.
We discwssed the relation among the coupling factor, the ratio of the coil diameter and the coil gap, and design the optimum coil design for the optimum load
