Renewable energy marine hydrokinetic or wind turbine

A marine hydrokinetic electric or wind power generator comprising

• a gearbox coupled to one of a propeller shaft and a waterwheel shaft, the gearbox comprising magnetic gears for slipping in the event of one of withstanding bursts of wind and water flow energy,
• a mechanical rotary frequency converter comprising three variables, responsive to one of a waterwheel shaft rotation and a propeller rotation shaft, the mechanical rotary frequency converter comprising at least one spur/helical gear assembly having equally spaced sets of planetary gears of a carrier and surrounding at least one sun gear integral with or attached to a shaft of the mechanical rotary frequency converter,
• a variable torque and power generator coupled to the mechanical rotary frequency converter and to an output shaft, the variable torque and power generator comprising a rotor and a stator axially adjustable along the output shaft so that the rotor may be displaced with respect to the stator or the stator may be displaced with respect to the rotor, the variable torque and power generator with a minimum displacement and complete overlap of rotor and stator and a maximum torque value in one position and with a maximum displacement and relative non-overlap of rotor and stator and a minimum torque value in another position,
• an input shaft of one of a propeller shaft and a waterwheel shaft for rotating at a rotational velocity depending on one of wind speed and water flow rate and an output shaft for rotating at a different constant rotational velocity, and
• an electric generator, responsive to the variable torque and power generator for generating electricity at constant frequency and voltage but variable current.