Airborne Wind Energy

Part of the series Green Energy and Technology pp 235-247


Airborne Wind Energy Conversion Systems with Ultra High Speed Mechanical Power Transfer

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A novel Airborne Wind Energy Conversion System with a ground-based electric generator is proposed. The construction uses two interacting tethered wings with a single motion transfer cable, separate from the tethers. The speed of tangential motion of the cable exceeds the speed of the wings, flying cross wind, and is further increased by a block and tackle mechanism, thus ensuring high rotational speed and low torque on the receiving shaft of the ground-based drivetrain. The drivetrain does not require a gearbox. This device is estimated to be more than 10 times less expensive than a conventional wind turbine with the same average power output.