Tidal Power Generation with Counter-rotating Generator

This paper describes a tidal power generation system with counter-rotating generator. The method of charging is charging current control. The demonstration experiment was conducted by the method using counter-rotating generator and the usual method at Kanmon Straits. They showed both equivalent charging power. However the mechanical loss of the generator’s stator had more than twice in this generator. Therefore the power generation capacity increases by selecting generator that the stator loss is smaller.