Tidal current power generation system suitable for boarding on a floating buoy

This paper proposes a new type of machine for tidal current power generatio n using the floating buoy, The machine consists of the tandem runners and t he generator with double rotors, The front and the rear runners counter-dri ve the inner and the outer rotors under the same rotational torque, respect ively, The electric current goes down and the voltage goes up with the incr ease of the rotational speed, and the maximum output power is obtained at t he same counter-rotational speeds as expected in the runner design.